diff --git a/.circleci/config.yml b/.circleci/config.yml index 28edd417ee8..6a2f771ed88 100644 --- a/.circleci/config.yml +++ b/.circleci/config.yml @@ -10,7 +10,23 @@ orbs: # https://hub.docker.com/r/cimg/node/tags/ jobs: - install-and-cibuild: + install-and-cibuild-node12: # cibuild using node 12 & npm 6 + docker: + - image: cimg/node:12.22.7 + working_directory: ~/plotly.js + steps: + - checkout + - run: + name: Set up build environment + command: .circleci/env_build.sh + - run: + name: Pretest + command: npm run pretest + - run: + name: CI-Build + command: npm run cibuild + + install-and-cibuild: # main cibuild using node 16 & npm 7 docker: - image: cimg/node:16.8.0 working_directory: ~/plotly.js @@ -370,6 +386,8 @@ workflows: version: 2 build-and-test: jobs: + - install-and-cibuild-node12 + - install-and-cibuild - timezone-jasmine: requires: diff --git a/.eslintignore b/.eslintignore index b8c5a6314c4..e445d51e232 100644 --- a/.eslintignore +++ b/.eslintignore @@ -1,3 +1,4 @@ +stackgl_modules node_modules dist build diff --git a/package-lock.json b/package-lock.json index 8f82c99988a..3571155f851 100644 --- a/package-lock.json +++ b/package-lock.json @@ -12,18 +12,14 @@ "@plotly/d3": "3.8.0", "@plotly/d3-sankey": "0.7.2", "@plotly/d3-sankey-circular": "0.33.1", - 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- "simplify-planar-graph": "^2.0.1", - "surface-nets": "^1.0.0", - "triangulate-polyline": "^1.0.0" - } - }, "vm-browserify": { "version": "1.1.2", "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-1.1.2.tgz", @@ -22639,11 +19472,6 @@ "resolved": "https://registry.npmjs.org/weak-map/-/weak-map-1.0.5.tgz", "integrity": "sha1-eWkVhNmGB/UHC9O3CkDmuyLkAes=" }, - "weakmap-shim": { - "version": "1.1.1", - "resolved": "https://registry.npmjs.org/weakmap-shim/-/weakmap-shim-1.1.1.tgz", - "integrity": "sha1-1lr9eEEJshZuAP9XHDMVDsKkC0k=" - }, "webgl-context": { "version": "2.2.0", "resolved": "https://registry.npmjs.org/webgl-context/-/webgl-context-2.2.0.tgz", @@ -22922,11 +19750,6 @@ "dev": true } } - }, - "zero-crossings": { - "version": "git+ssh://git@github.com/plotly/zero-crossings.git#4746771f490344e21c84d1f631cb661d8c5ff508", - "integrity": "sha512-WHSQ1WjDHVnsBvGSYvWy9ArqOa7uxuPQmySQa7A+SWN7pibPbeGrJXSZM8iht98vW304WnqMlvEheA81a2oC4w==", - "from": "zero-crossings@plotly/zero-crossings#v1.1.0" } } } diff --git a/package.json b/package.json index 20a3003218e..86353c8b461 100644 --- a/package.json +++ b/package.json @@ -72,18 +72,14 @@ "@plotly/d3": "3.8.0", "@plotly/d3-sankey": "0.7.2", "@plotly/d3-sankey-circular": "0.33.1", - "@plotly/point-cluster": "^3.1.9", "@turf/area": "^6.4.0", "@turf/bbox": "^6.4.0", "@turf/centroid": "^6.0.2", - "alpha-shape": "^1.0.0", - "box-intersect": "plotly/box-intersect#v1.1.0", "canvas-fit": "^1.5.0", "color-alpha": "1.0.4", "color-normalize": "1.5.0", "color-parse": "1.3.8", "color-rgba": "2.1.1", - "convex-hull": "^1.0.3", "country-regex": "^1.1.0", "d3-force": "^1.2.1", "d3-format": "^1.4.5", @@ -93,42 +89,18 @@ "d3-interpolate": "^1.4.0", "d3-time": "^1.1.0", "d3-time-format": "^2.2.3", - "delaunay-triangulate": "^1.1.6", "fast-isnumeric": "^1.1.4", - "gl-cone3d": "^1.5.2", - "gl-error3d": "^1.0.16", - "gl-heatmap2d": "^1.1.1", - "gl-line3d": "1.2.1", "gl-mat4": "^1.2.0", - "gl-mesh3d": "^2.3.1", - "gl-plot2d": "^1.4.5", - "gl-plot3d": "^2.4.7", - "gl-pointcloud2d": "^1.0.3", - "gl-scatter3d": "^1.2.3", - "gl-select-box": "^1.0.4", - "gl-shader": "4.3.1", - "gl-spikes2d": "^1.0.2", - "gl-streamtube3d": "^1.4.1", - "gl-surface3d": "^1.6.0", "gl-text": "^1.3.1", "glslify": "^7.1.1", "has-hover": "^1.0.1", "has-passive-events": "^1.0.0", - "incremental-convex-hull": "plotly/incremental-convex-hull#v1.1.0", "is-mobile": "^2.2.2", "mapbox-gl": "1.10.1", - "matrix-camera-controller": "^2.1.4", "mouse-change": "^1.4.0", "mouse-event-offset": "^3.0.2", "mouse-wheel": "^1.2.0", "native-promise-only": "^0.8.1", - "ndarray": "plotly/ndarray#v1.1.0", - "ndarray-extract-contour": "plotly/ndarray-extract-contour#v1.1.0", - "ndarray-gradient": "plotly/ndarray-gradient#v1.1.0", - "ndarray-linear-interpolate": "^1.0.0", - "ndarray-ops": "plotly/ndarray-ops#v1.3.0", - "ndarray-pack": "plotly/ndarray-pack#v1.3.0", - "ndarray-sort": "plotly/ndarray-sort#v1.1.0", "parse-svg-path": "^0.1.2", "polybooljs": "^1.2.0", "probe-image-size": "^7.2.1", @@ -137,23 +109,13 @@ "regl-line2d": "^3.1.2", "regl-scatter2d": "^3.2.8", "regl-splom": "^1.0.14", - "right-now": "^1.0.0", - "robust-determinant": "plotly/robust-determinant#v1.2.1", - "robust-in-sphere": "1.2.1", - "robust-linear-solve": "plotly/robust-linear-solve#v1.1.1", - "robust-orientation": "1.2.1", - "simplicial-complex-contour": "plotly/simplicial-complex-contour#v1.1.0", "strongly-connected-components": "^1.0.1", "superscript-text": "^1.0.0", - "surface-nets": "plotly/surface-nets#v1.1.1", "svg-path-sdf": "^1.1.3", "tinycolor2": "^1.4.2", - "to-px": "1.0.1", "topojson-client": "^3.1.0", - "vectorize-text": "3.2.2", "webgl-context": "^2.2.0", - "world-calendars": "^1.0.3", - "zero-crossings": "plotly/zero-crossings#v1.1.0" + "world-calendars": "^1.0.3" }, "devDependencies": { "amdefine": "^1.0.1", diff --git a/src/plots/gl2d/scene2d.js b/src/plots/gl2d/scene2d.js index 67dea787fd8..9df5db9618b 100644 --- a/src/plots/gl2d/scene2d.js +++ b/src/plots/gl2d/scene2d.js @@ -4,9 +4,9 @@ var Registry = require('../../registry'); var Axes = require('../../plots/cartesian/axes'); var Fx = require('../../components/fx'); -var createPlot2D = require('gl-plot2d'); -var createSpikes = require('gl-spikes2d'); -var createSelectBox = require('gl-select-box'); +var createPlot2D = require('../../../stackgl_modules').gl_plot2d; +var createSpikes = require('../../../stackgl_modules').gl_spikes2d; +var createSelectBox = require('../../../stackgl_modules').gl_select_box; var getContext = require('webgl-context'); var createOptions = require('./convert'); diff --git a/src/plots/gl3d/scene.js b/src/plots/gl3d/scene.js index 3779cfde67c..6bbae1c4aa8 100644 --- a/src/plots/gl3d/scene.js +++ b/src/plots/gl3d/scene.js @@ -1,6 +1,6 @@ 'use strict'; -var glPlot3d = require('gl-plot3d'); +var glPlot3d = require('../../../stackgl_modules').gl_plot3d; var createCamera = glPlot3d.createCamera; var createPlot = glPlot3d.createScene; diff --git a/src/traces/cone/convert.js b/src/traces/cone/convert.js index a29eb91c435..42e1974c2b1 100644 --- a/src/traces/cone/convert.js +++ b/src/traces/cone/convert.js @@ -1,7 +1,7 @@ 'use strict'; -var conePlot = require('gl-cone3d'); -var createConeMesh = require('gl-cone3d').createConeMesh; +var conePlot = require('../../../stackgl_modules').gl_cone3d; +var createConeMesh = require('../../../stackgl_modules').gl_cone3d.createConeMesh; var simpleMap = require('../../lib').simpleMap; var parseColorScale = require('../../lib/gl_format_color').parseColorScale; diff --git a/src/traces/heatmapgl/convert.js b/src/traces/heatmapgl/convert.js index 2dee2f97c3f..d2a97fc2e95 100644 --- a/src/traces/heatmapgl/convert.js +++ b/src/traces/heatmapgl/convert.js @@ -1,6 +1,6 @@ 'use strict'; -var createHeatmap2D = require('gl-heatmap2d'); +var createHeatmap2D = require('../../../stackgl_modules').gl_heatmap2d; var Axes = require('../../plots/cartesian/axes'); var str2RGBArray = require('../../lib/str2rgbarray'); diff --git a/src/traces/isosurface/convert.js b/src/traces/isosurface/convert.js index 34bc0da7052..5027cdc1d5b 100644 --- a/src/traces/isosurface/convert.js +++ b/src/traces/isosurface/convert.js @@ -1,6 +1,6 @@ 'use strict'; -var createMesh = require('gl-mesh3d'); +var createMesh = require('../../../stackgl_modules').gl_mesh3d; var parseColorScale = require('../../lib/gl_format_color').parseColorScale; var str2RgbaArray = require('../../lib/str2rgbarray'); var extractOpts = require('../../components/colorscale').extractOpts; diff --git a/src/traces/mesh3d/convert.js b/src/traces/mesh3d/convert.js index 7968a90ba3c..3c38b148f85 100644 --- a/src/traces/mesh3d/convert.js +++ b/src/traces/mesh3d/convert.js @@ -1,9 +1,9 @@ 'use strict'; -var createMesh = require('gl-mesh3d'); -var triangulate = require('delaunay-triangulate'); -var alphaShape = require('alpha-shape'); -var convexHull = require('convex-hull'); +var createMesh = require('../../../stackgl_modules').gl_mesh3d; +var triangulate = require('../../../stackgl_modules').delaunay_triangulate; +var alphaShape = require('../../../stackgl_modules').alpha_shape; +var convexHull = require('../../../stackgl_modules').convex_hull; var parseColorScale = require('../../lib/gl_format_color').parseColorScale; var str2RgbaArray = require('../../lib/str2rgbarray'); diff --git a/src/traces/pointcloud/convert.js b/src/traces/pointcloud/convert.js index da0a27d7d0a..7ed0b37c140 100644 --- a/src/traces/pointcloud/convert.js +++ b/src/traces/pointcloud/convert.js @@ -1,6 +1,6 @@ 'use strict'; -var createPointCloudRenderer = require('gl-pointcloud2d'); +var createPointCloudRenderer = require('../../../stackgl_modules').gl_pointcloud2d; var str2RGBArray = require('../../lib/str2rgbarray'); var findExtremes = require('../../plots/cartesian/autorange').findExtremes; diff --git a/src/traces/scatter3d/convert.js b/src/traces/scatter3d/convert.js index 1a463827837..e186b1949f6 100644 --- a/src/traces/scatter3d/convert.js +++ b/src/traces/scatter3d/convert.js @@ -1,10 +1,10 @@ 'use strict'; -var createLinePlot = require('gl-line3d'); -var createScatterPlot = require('gl-scatter3d'); -var createErrorBars = require('gl-error3d'); -var createMesh = require('gl-mesh3d'); -var triangulate = require('delaunay-triangulate'); +var createLinePlot = require('../../../stackgl_modules').gl_line3d; +var createScatterPlot = require('../../../stackgl_modules').gl_scatter3d; +var createErrorBars = require('../../../stackgl_modules').gl_error3d; +var createMesh = require('../../../stackgl_modules').gl_mesh3d; +var triangulate = require('../../../stackgl_modules').delaunay_triangulate; var Lib = require('../../lib'); var str2RgbaArray = require('../../lib/str2rgbarray'); diff --git a/src/traces/streamtube/convert.js b/src/traces/streamtube/convert.js index e937037f4fc..b6abead1eff 100644 --- a/src/traces/streamtube/convert.js +++ b/src/traces/streamtube/convert.js @@ -1,6 +1,6 @@ 'use strict'; -var tube2mesh = require('gl-streamtube3d'); +var tube2mesh = require('../../../stackgl_modules').gl_streamtube3d; var createTubeMesh = tube2mesh.createTubeMesh; var Lib = require('../../lib'); diff --git a/src/traces/surface/convert.js b/src/traces/surface/convert.js index 00467d1a904..c66689a8672 100644 --- a/src/traces/surface/convert.js +++ b/src/traces/surface/convert.js @@ -1,9 +1,9 @@ 'use strict'; -var createSurface = require('gl-surface3d'); +var createSurface = require('../../../stackgl_modules').gl_surface3d; -var ndarray = require('ndarray'); -var ndarrayInterp2d = require('ndarray-linear-interpolate').d2; +var ndarray = require('../../../stackgl_modules').ndarray; +var ndarrayInterp2d = require('../../../stackgl_modules').ndarray_linear_interpolate.d2; var interp2d = require('../heatmap/interp2d'); var findEmpties = require('../heatmap/find_empties'); diff --git a/src/traces/volume/convert.js b/src/traces/volume/convert.js index ac896af8ef7..7504a493d1f 100644 --- a/src/traces/volume/convert.js +++ b/src/traces/volume/convert.js @@ -1,6 +1,6 @@ 'use strict'; -var createMesh = require('gl-mesh3d'); +var createMesh = require('../../../stackgl_modules').gl_mesh3d; var parseColorScale = require('../../lib/gl_format_color').parseColorScale; var str2RgbaArray = require('../../lib/str2rgbarray'); diff --git a/stackgl_modules/index.js b/stackgl_modules/index.js new file mode 100644 index 00000000000..e94cf7edb7b --- /dev/null +++ b/stackgl_modules/index.js @@ -0,0 +1,40528 @@ +(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.stackgl = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i 0) { + throw new Error('Invalid string. Length must be a multiple of 4') + } + + // Trim off extra bytes after placeholder bytes are found + // See: https://github.com/beatgammit/base64-js/issues/42 + var validLen = b64.indexOf('=') + if (validLen === -1) validLen = len + + var placeHoldersLen = validLen === len + ? 0 + : 4 - (validLen % 4) + + return [validLen, placeHoldersLen] +} + +// base64 is 4/3 + up to two characters of the original data +function byteLength (b64) { + var lens = getLens(b64) + var validLen = lens[0] + var placeHoldersLen = lens[1] + return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen +} + +function _byteLength (b64, validLen, placeHoldersLen) { + return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen +} + +function toByteArray (b64) { + var tmp + var lens = getLens(b64) + var validLen = lens[0] + var placeHoldersLen = lens[1] + + var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen)) + + var curByte = 0 + + // if there are placeholders, only get up to the last complete 4 chars + var len = placeHoldersLen > 0 + ? validLen - 4 + : validLen + + var i + for (i = 0; i < len; i += 4) { + tmp = + (revLookup[b64.charCodeAt(i)] << 18) | + (revLookup[b64.charCodeAt(i + 1)] << 12) | + (revLookup[b64.charCodeAt(i + 2)] << 6) | + revLookup[b64.charCodeAt(i + 3)] + arr[curByte++] = (tmp >> 16) & 0xFF + arr[curByte++] = (tmp >> 8) & 0xFF + arr[curByte++] = tmp & 0xFF + } + + if (placeHoldersLen === 2) { + tmp = + (revLookup[b64.charCodeAt(i)] << 2) | + (revLookup[b64.charCodeAt(i + 1)] >> 4) + arr[curByte++] = tmp & 0xFF + } + + if (placeHoldersLen === 1) { + tmp = + (revLookup[b64.charCodeAt(i)] << 10) | + (revLookup[b64.charCodeAt(i + 1)] << 4) | + (revLookup[b64.charCodeAt(i + 2)] >> 2) + arr[curByte++] = (tmp >> 8) & 0xFF + arr[curByte++] = tmp & 0xFF + } + + return arr +} + +function tripletToBase64 (num) { + return lookup[num >> 18 & 0x3F] + + lookup[num >> 12 & 0x3F] + + lookup[num >> 6 & 0x3F] + + lookup[num & 0x3F] +} + +function encodeChunk (uint8, start, end) { + var tmp + var output = [] + for (var i = start; i < end; i += 3) { + tmp = + ((uint8[i] << 16) & 0xFF0000) + + ((uint8[i + 1] << 8) & 0xFF00) + + (uint8[i + 2] & 0xFF) + output.push(tripletToBase64(tmp)) + } + return output.join('') +} + +function fromByteArray (uint8) { + var tmp + var len = uint8.length + var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes + var parts = [] + var maxChunkLength = 16383 // must be multiple of 3 + + // go through the array every three bytes, we'll deal with trailing stuff later + for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { + parts.push(encodeChunk( + uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength) + )) + } + + // pad the end with zeros, but make sure to not forget the extra bytes + if (extraBytes === 1) { + tmp = uint8[len - 1] + parts.push( + lookup[tmp >> 2] + + lookup[(tmp << 4) & 0x3F] + + '==' + ) + } else if (extraBytes === 2) { + tmp = (uint8[len - 2] << 8) + uint8[len - 1] + parts.push( + lookup[tmp >> 10] + + lookup[(tmp >> 4) & 0x3F] + + lookup[(tmp << 2) & 0x3F] + + '=' + ) + } + + return parts.join('') +} + +},{}],2:[function(_glvis_,module,exports){ + +},{}],3:[function(_glvis_,module,exports){ +(function (Buffer){(function (){ +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +/* eslint-disable no-proto */ + +'use strict' + +var base64 = _glvis_('base64-js') +var ieee754 = _glvis_('ieee754') + +exports.Buffer = Buffer +exports.SlowBuffer = SlowBuffer +exports.INSPECT_MAX_BYTES = 50 + +var K_MAX_LENGTH = 0x7fffffff +exports.kMaxLength = K_MAX_LENGTH + +/** + * If `Buffer.TYPED_ARRAY_SUPPORT`: + * === true Use Uint8Array implementation (fastest) + * === false Print warning and recommend using `buffer` v4.x which has an Object + * implementation (most compatible, even IE6) + * + * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, + * Opera 11.6+, iOS 4.2+. + * + * We report that the browser does not support typed arrays if the are not subclassable + * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` + * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support + * for __proto__ and has a buggy typed array implementation. + */ +Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() + +if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && + typeof console.error === 'function') { + console.error( + 'This browser lacks typed array (Uint8Array) support which is required by ' + + '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' + ) +} + +function typedArraySupport () { + // Can typed array instances can be augmented? + try { + var arr = new Uint8Array(1) + arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } } + return arr.foo() === 42 + } catch (e) { + return false + } +} + +Object.defineProperty(Buffer.prototype, 'parent', { + enumerable: true, + get: function () { + if (!Buffer.isBuffer(this)) return undefined + return this.buffer + } +}) + +Object.defineProperty(Buffer.prototype, 'offset', { + enumerable: true, + get: function () { + if (!Buffer.isBuffer(this)) return undefined + return this.byteOffset + } +}) + +function createBuffer (length) { + if (length > K_MAX_LENGTH) { + throw new RangeError('The value "' + length + '" is invalid for option "size"') + } + // Return an augmented `Uint8Array` instance + var buf = new Uint8Array(length) + buf.__proto__ = Buffer.prototype + return buf +} + +/** + * The Buffer constructor returns instances of `Uint8Array` that have their + * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of + * `Uint8Array`, so the returned instances will have all the node `Buffer` methods + * and the `Uint8Array` methods. Square bracket notation works as expected -- it + * returns a single octet. + * + * The `Uint8Array` prototype remains unmodified. + */ + +function Buffer (arg, encodingOrOffset, length) { + // Common case. + if (typeof arg === 'number') { + if (typeof encodingOrOffset === 'string') { + throw new TypeError( + 'The "string" argument must be of type string. Received type number' + ) + } + return allocUnsafe(arg) + } + return from(arg, encodingOrOffset, length) +} + +// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 +if (typeof Symbol !== 'undefined' && Symbol.species != null && + Buffer[Symbol.species] === Buffer) { + Object.defineProperty(Buffer, Symbol.species, { + value: null, + configurable: true, + enumerable: false, + writable: false + }) +} + +Buffer.poolSize = 8192 // not used by this implementation + +function from (value, encodingOrOffset, length) { + if (typeof value === 'string') { + return fromString(value, encodingOrOffset) + } + + if (ArrayBuffer.isView(value)) { + return fromArrayLike(value) + } + + if (value == null) { + throw TypeError( + 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + + 'or Array-like Object. Received type ' + (typeof value) + ) + } + + if (isInstance(value, ArrayBuffer) || + (value && isInstance(value.buffer, ArrayBuffer))) { + return fromArrayBuffer(value, encodingOrOffset, length) + } + + if (typeof value === 'number') { + throw new TypeError( + 'The "value" argument must not be of type number. Received type number' + ) + } + + var valueOf = value.valueOf && value.valueOf() + if (valueOf != null && valueOf !== value) { + return Buffer.from(valueOf, encodingOrOffset, length) + } + + var b = fromObject(value) + if (b) return b + + if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null && + typeof value[Symbol.toPrimitive] === 'function') { + return Buffer.from( + value[Symbol.toPrimitive]('string'), encodingOrOffset, length + ) + } + + throw new TypeError( + 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + + 'or Array-like Object. Received type ' + (typeof value) + ) +} + +/** + * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError + * if value is a number. + * Buffer.from(str[, encoding]) + * Buffer.from(array) + * Buffer.from(buffer) + * Buffer.from(arrayBuffer[, byteOffset[, length]]) + **/ +Buffer.from = function (value, encodingOrOffset, length) { + return from(value, encodingOrOffset, length) +} + +// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug: +// https://github.com/feross/buffer/pull/148 +Buffer.prototype.__proto__ = Uint8Array.prototype +Buffer.__proto__ = Uint8Array + +function assertSize (size) { + if (typeof size !== 'number') { + throw new TypeError('"size" argument must be of type number') + } else if (size < 0) { + throw new RangeError('The value "' + size + '" is invalid for option "size"') + } +} + +function alloc (size, fill, encoding) { + assertSize(size) + if (size <= 0) { + return createBuffer(size) + } + if (fill !== undefined) { + // Only pay attention to encoding if it's a string. This + // prevents accidentally sending in a number that would + // be interpretted as a start offset. + return typeof encoding === 'string' + ? createBuffer(size).fill(fill, encoding) + : createBuffer(size).fill(fill) + } + return createBuffer(size) +} + +/** + * Creates a new filled Buffer instance. + * alloc(size[, fill[, encoding]]) + **/ +Buffer.alloc = function (size, fill, encoding) { + return alloc(size, fill, encoding) +} + +function allocUnsafe (size) { + assertSize(size) + return createBuffer(size < 0 ? 0 : checked(size) | 0) +} + +/** + * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. + * */ +Buffer.allocUnsafe = function (size) { + return allocUnsafe(size) +} +/** + * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. + */ +Buffer.allocUnsafeSlow = function (size) { + return allocUnsafe(size) +} + +function fromString (string, encoding) { + if (typeof encoding !== 'string' || encoding === '') { + encoding = 'utf8' + } + + if (!Buffer.isEncoding(encoding)) { + throw new TypeError('Unknown encoding: ' + encoding) + } + + var length = byteLength(string, encoding) | 0 + var buf = createBuffer(length) + + var actual = buf.write(string, encoding) + + if (actual !== length) { + // Writing a hex string, for example, that contains invalid characters will + // cause everything after the first invalid character to be ignored. (e.g. + // 'abxxcd' will be treated as 'ab') + buf = buf.slice(0, actual) + } + + return buf +} + +function fromArrayLike (array) { + var length = array.length < 0 ? 0 : checked(array.length) | 0 + var buf = createBuffer(length) + for (var i = 0; i < length; i += 1) { + buf[i] = array[i] & 255 + } + return buf +} + +function fromArrayBuffer (array, byteOffset, length) { + if (byteOffset < 0 || array.byteLength < byteOffset) { + throw new RangeError('"offset" is outside of buffer bounds') + } + + if (array.byteLength < byteOffset + (length || 0)) { + throw new RangeError('"length" is outside of buffer bounds') + } + + var buf + if (byteOffset === undefined && length === undefined) { + buf = new Uint8Array(array) + } else if (length === undefined) { + buf = new Uint8Array(array, byteOffset) + } else { + buf = new Uint8Array(array, byteOffset, length) + } + + // Return an augmented `Uint8Array` instance + buf.__proto__ = Buffer.prototype + return buf +} + +function fromObject (obj) { + if (Buffer.isBuffer(obj)) { + var len = checked(obj.length) | 0 + var buf = createBuffer(len) + + if (buf.length === 0) { + return buf + } + + obj.copy(buf, 0, 0, len) + return buf + } + + if (obj.length !== undefined) { + if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) { + return createBuffer(0) + } + return fromArrayLike(obj) + } + + if (obj.type === 'Buffer' && Array.isArray(obj.data)) { + return fromArrayLike(obj.data) + } +} + +function checked (length) { + // Note: cannot use `length < K_MAX_LENGTH` here because that fails when + // length is NaN (which is otherwise coerced to zero.) + if (length >= K_MAX_LENGTH) { + throw new RangeError('Attempt to allocate Buffer larger than maximum ' + + 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes') + } + return length | 0 +} + +function SlowBuffer (length) { + if (+length != length) { // eslint-disable-line eqeqeq + length = 0 + } + return Buffer.alloc(+length) +} + +Buffer.isBuffer = function isBuffer (b) { + return b != null && b._isBuffer === true && + b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false +} + +Buffer.compare = function compare (a, b) { + if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength) + if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength) + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + throw new TypeError( + 'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array' + ) + } + + if (a === b) return 0 + + var x = a.length + var y = b.length + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i] + y = b[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +Buffer.isEncoding = function isEncoding (encoding) { + switch (String(encoding).toLowerCase()) { + case 'hex': + case 'utf8': + case 'utf-8': + case 'ascii': + case 'latin1': + case 'binary': + case 'base64': + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return true + default: + return false + } +} + +Buffer.concat = function concat (list, length) { + if (!Array.isArray(list)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + + if (list.length === 0) { + return Buffer.alloc(0) + } + + var i + if (length === undefined) { + length = 0 + for (i = 0; i < list.length; ++i) { + length += list[i].length + } + } + + var buffer = Buffer.allocUnsafe(length) + var pos = 0 + for (i = 0; i < list.length; ++i) { + var buf = list[i] + if (isInstance(buf, Uint8Array)) { + buf = Buffer.from(buf) + } + if (!Buffer.isBuffer(buf)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + buf.copy(buffer, pos) + pos += buf.length + } + return buffer +} + +function byteLength (string, encoding) { + if (Buffer.isBuffer(string)) { + return string.length + } + if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) { + return string.byteLength + } + if (typeof string !== 'string') { + throw new TypeError( + 'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' + + 'Received type ' + typeof string + ) + } + + var len = string.length + var mustMatch = (arguments.length > 2 && arguments[2] === true) + if (!mustMatch && len === 0) return 0 + + // Use a for loop to avoid recursion + var loweredCase = false + for (;;) { + switch (encoding) { + case 'ascii': + case 'latin1': + case 'binary': + return len + case 'utf8': + case 'utf-8': + return utf8ToBytes(string).length + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return len * 2 + case 'hex': + return len >>> 1 + case 'base64': + return base64ToBytes(string).length + default: + if (loweredCase) { + return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8 + } + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} +Buffer.byteLength = byteLength + +function slowToString (encoding, start, end) { + var loweredCase = false + + // No need to verify that "this.length <= MAX_UINT32" since it's a read-only + // property of a typed array. + + // This behaves neither like String nor Uint8Array in that we set start/end + // to their upper/lower bounds if the value passed is out of range. + // undefined is handled specially as per ECMA-262 6th Edition, + // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. + if (start === undefined || start < 0) { + start = 0 + } + // Return early if start > this.length. Done here to prevent potential uint32 + // coercion fail below. + if (start > this.length) { + return '' + } + + if (end === undefined || end > this.length) { + end = this.length + } + + if (end <= 0) { + return '' + } + + // Force coersion to uint32. This will also coerce falsey/NaN values to 0. + end >>>= 0 + start >>>= 0 + + if (end <= start) { + return '' + } + + if (!encoding) encoding = 'utf8' + + while (true) { + switch (encoding) { + case 'hex': + return hexSlice(this, start, end) + + case 'utf8': + case 'utf-8': + return utf8Slice(this, start, end) + + case 'ascii': + return asciiSlice(this, start, end) + + case 'latin1': + case 'binary': + return latin1Slice(this, start, end) + + case 'base64': + return base64Slice(this, start, end) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return utf16leSlice(this, start, end) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = (encoding + '').toLowerCase() + loweredCase = true + } + } +} + +// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package) +// to detect a Buffer instance. It's not possible to use `instanceof Buffer` +// reliably in a browserify context because there could be multiple different +// copies of the 'buffer' package in use. This method works even for Buffer +// instances that were created from another copy of the `buffer` package. +// See: https://github.com/feross/buffer/issues/154 +Buffer.prototype._isBuffer = true + +function swap (b, n, m) { + var i = b[n] + b[n] = b[m] + b[m] = i +} + +Buffer.prototype.swap16 = function swap16 () { + var len = this.length + if (len % 2 !== 0) { + throw new RangeError('Buffer size must be a multiple of 16-bits') + } + for (var i = 0; i < len; i += 2) { + swap(this, i, i + 1) + } + return this +} + +Buffer.prototype.swap32 = function swap32 () { + var len = this.length + if (len % 4 !== 0) { + throw new RangeError('Buffer size must be a multiple of 32-bits') + } + for (var i = 0; i < len; i += 4) { + swap(this, i, i + 3) + swap(this, i + 1, i + 2) + } + return this +} + +Buffer.prototype.swap64 = function swap64 () { + var len = this.length + if (len % 8 !== 0) { + throw new RangeError('Buffer size must be a multiple of 64-bits') + } + for (var i = 0; i < len; i += 8) { + swap(this, i, i + 7) + swap(this, i + 1, i + 6) + swap(this, i + 2, i + 5) + swap(this, i + 3, i + 4) + } + return this +} + +Buffer.prototype.toString = function toString () { + var length = this.length + if (length === 0) return '' + if (arguments.length === 0) return utf8Slice(this, 0, length) + return slowToString.apply(this, arguments) +} + +Buffer.prototype.toLocaleString = Buffer.prototype.toString + +Buffer.prototype.equals = function equals (b) { + if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') + if (this === b) return true + return Buffer.compare(this, b) === 0 +} + +Buffer.prototype.inspect = function inspect () { + var str = '' + var max = exports.INSPECT_MAX_BYTES + str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim() + if (this.length > max) str += ' ... ' + return '' +} + +Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { + if (isInstance(target, Uint8Array)) { + target = Buffer.from(target, target.offset, target.byteLength) + } + if (!Buffer.isBuffer(target)) { + throw new TypeError( + 'The "target" argument must be one of type Buffer or Uint8Array. ' + + 'Received type ' + (typeof target) + ) + } + + if (start === undefined) { + start = 0 + } + if (end === undefined) { + end = target ? target.length : 0 + } + if (thisStart === undefined) { + thisStart = 0 + } + if (thisEnd === undefined) { + thisEnd = this.length + } + + if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { + throw new RangeError('out of range index') + } + + if (thisStart >= thisEnd && start >= end) { + return 0 + } + if (thisStart >= thisEnd) { + return -1 + } + if (start >= end) { + return 1 + } + + start >>>= 0 + end >>>= 0 + thisStart >>>= 0 + thisEnd >>>= 0 + + if (this === target) return 0 + + var x = thisEnd - thisStart + var y = end - start + var len = Math.min(x, y) + + var thisCopy = this.slice(thisStart, thisEnd) + var targetCopy = target.slice(start, end) + + for (var i = 0; i < len; ++i) { + if (thisCopy[i] !== targetCopy[i]) { + x = thisCopy[i] + y = targetCopy[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, +// OR the last index of `val` in `buffer` at offset <= `byteOffset`. +// +// Arguments: +// - buffer - a Buffer to search +// - val - a string, Buffer, or number +// - byteOffset - an index into `buffer`; will be clamped to an int32 +// - encoding - an optional encoding, relevant is val is a string +// - dir - true for indexOf, false for lastIndexOf +function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { + // Empty buffer means no match + if (buffer.length === 0) return -1 + + // Normalize byteOffset + if (typeof byteOffset === 'string') { + encoding = byteOffset + byteOffset = 0 + } else if (byteOffset > 0x7fffffff) { + byteOffset = 0x7fffffff + } else if (byteOffset < -0x80000000) { + byteOffset = -0x80000000 + } + byteOffset = +byteOffset // Coerce to Number. + if (numberIsNaN(byteOffset)) { + // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer + byteOffset = dir ? 0 : (buffer.length - 1) + } + + // Normalize byteOffset: negative offsets start from the end of the buffer + if (byteOffset < 0) byteOffset = buffer.length + byteOffset + if (byteOffset >= buffer.length) { + if (dir) return -1 + else byteOffset = buffer.length - 1 + } else if (byteOffset < 0) { + if (dir) byteOffset = 0 + else return -1 + } + + // Normalize val + if (typeof val === 'string') { + val = Buffer.from(val, encoding) + } + + // Finally, search either indexOf (if dir is true) or lastIndexOf + if (Buffer.isBuffer(val)) { + // Special case: looking for empty string/buffer always fails + if (val.length === 0) { + return -1 + } + return arrayIndexOf(buffer, val, byteOffset, encoding, dir) + } else if (typeof val === 'number') { + val = val & 0xFF // Search for a byte value [0-255] + if (typeof Uint8Array.prototype.indexOf === 'function') { + if (dir) { + return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) + } else { + return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) + } + } + return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) + } + + throw new TypeError('val must be string, number or Buffer') +} + +function arrayIndexOf (arr, val, byteOffset, encoding, dir) { + var indexSize = 1 + var arrLength = arr.length + var valLength = val.length + + if (encoding !== undefined) { + encoding = String(encoding).toLowerCase() + if (encoding === 'ucs2' || encoding === 'ucs-2' || + encoding === 'utf16le' || encoding === 'utf-16le') { + if (arr.length < 2 || val.length < 2) { + return -1 + } + indexSize = 2 + arrLength /= 2 + valLength /= 2 + byteOffset /= 2 + } + } + + function read (buf, i) { + if (indexSize === 1) { + return buf[i] + } else { + return buf.readUInt16BE(i * indexSize) + } + } + + var i + if (dir) { + var foundIndex = -1 + for (i = byteOffset; i < arrLength; i++) { + if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { + if (foundIndex === -1) foundIndex = i + if (i - foundIndex + 1 === valLength) return foundIndex * indexSize + } else { + if (foundIndex !== -1) i -= i - foundIndex + foundIndex = -1 + } + } + } else { + if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength + for (i = byteOffset; i >= 0; i--) { + var found = true + for (var j = 0; j < valLength; j++) { + if (read(arr, i + j) !== read(val, j)) { + found = false + break + } + } + if (found) return i + } + } + + return -1 +} + +Buffer.prototype.includes = function includes (val, byteOffset, encoding) { + return this.indexOf(val, byteOffset, encoding) !== -1 +} + +Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, true) +} + +Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, false) +} + +function hexWrite (buf, string, offset, length) { + offset = Number(offset) || 0 + var remaining = buf.length - offset + if (!length) { + length = remaining + } else { + length = Number(length) + if (length > remaining) { + length = remaining + } + } + + var strLen = string.length + + if (length > strLen / 2) { + length = strLen / 2 + } + for (var i = 0; i < length; ++i) { + var parsed = parseInt(string.substr(i * 2, 2), 16) + if (numberIsNaN(parsed)) return i + buf[offset + i] = parsed + } + return i +} + +function utf8Write (buf, string, offset, length) { + return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) +} + +function asciiWrite (buf, string, offset, length) { + return blitBuffer(asciiToBytes(string), buf, offset, length) +} + +function latin1Write (buf, string, offset, length) { + return asciiWrite(buf, string, offset, length) +} + +function base64Write (buf, string, offset, length) { + return blitBuffer(base64ToBytes(string), buf, offset, length) +} + +function ucs2Write (buf, string, offset, length) { + return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) +} + +Buffer.prototype.write = function write (string, offset, length, encoding) { + // Buffer#write(string) + if (offset === undefined) { + encoding = 'utf8' + length = this.length + offset = 0 + // Buffer#write(string, encoding) + } else if (length === undefined && typeof offset === 'string') { + encoding = offset + length = this.length + offset = 0 + // Buffer#write(string, offset[, length][, encoding]) + } else if (isFinite(offset)) { + offset = offset >>> 0 + if (isFinite(length)) { + length = length >>> 0 + if (encoding === undefined) encoding = 'utf8' + } else { + encoding = length + length = undefined + } + } else { + throw new Error( + 'Buffer.write(string, encoding, offset[, length]) is no longer supported' + ) + } + + var remaining = this.length - offset + if (length === undefined || length > remaining) length = remaining + + if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { + throw new RangeError('Attempt to write outside buffer bounds') + } + + if (!encoding) encoding = 'utf8' + + var loweredCase = false + for (;;) { + switch (encoding) { + case 'hex': + return hexWrite(this, string, offset, length) + + case 'utf8': + case 'utf-8': + return utf8Write(this, string, offset, length) + + case 'ascii': + return asciiWrite(this, string, offset, length) + + case 'latin1': + case 'binary': + return latin1Write(this, string, offset, length) + + case 'base64': + // Warning: maxLength not taken into account in base64Write + return base64Write(this, string, offset, length) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return ucs2Write(this, string, offset, length) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} + +Buffer.prototype.toJSON = function toJSON () { + return { + type: 'Buffer', + data: Array.prototype.slice.call(this._arr || this, 0) + } +} + +function base64Slice (buf, start, end) { + if (start === 0 && end === buf.length) { + return base64.fromByteArray(buf) + } else { + return base64.fromByteArray(buf.slice(start, end)) + } +} + +function utf8Slice (buf, start, end) { + end = Math.min(buf.length, end) + var res = [] + + var i = start + while (i < end) { + var firstByte = buf[i] + var codePoint = null + var bytesPerSequence = (firstByte > 0xEF) ? 4 + : (firstByte > 0xDF) ? 3 + : (firstByte > 0xBF) ? 2 + : 1 + + if (i + bytesPerSequence <= end) { + var secondByte, thirdByte, fourthByte, tempCodePoint + + switch (bytesPerSequence) { + case 1: + if (firstByte < 0x80) { + codePoint = firstByte + } + break + case 2: + secondByte = buf[i + 1] + if ((secondByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) + if (tempCodePoint > 0x7F) { + codePoint = tempCodePoint + } + } + break + case 3: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) + if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { + codePoint = tempCodePoint + } + } + break + case 4: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + fourthByte = buf[i + 3] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) + if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { + codePoint = tempCodePoint + } + } + } + } + + if (codePoint === null) { + // we did not generate a valid codePoint so insert a + // replacement char (U+FFFD) and advance only 1 byte + codePoint = 0xFFFD + bytesPerSequence = 1 + } else if (codePoint > 0xFFFF) { + // encode to utf16 (surrogate pair dance) + codePoint -= 0x10000 + res.push(codePoint >>> 10 & 0x3FF | 0xD800) + codePoint = 0xDC00 | codePoint & 0x3FF + } + + res.push(codePoint) + i += bytesPerSequence + } + + return decodeCodePointsArray(res) +} + +// Based on http://stackoverflow.com/a/22747272/680742, the browser with +// the lowest limit is Chrome, with 0x10000 args. +// We go 1 magnitude less, for safety +var MAX_ARGUMENTS_LENGTH = 0x1000 + +function decodeCodePointsArray (codePoints) { + var len = codePoints.length + if (len <= MAX_ARGUMENTS_LENGTH) { + return String.fromCharCode.apply(String, codePoints) // avoid extra slice() + } + + // Decode in chunks to avoid "call stack size exceeded". + var res = '' + var i = 0 + while (i < len) { + res += String.fromCharCode.apply( + String, + codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) + ) + } + return res +} + +function asciiSlice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i] & 0x7F) + } + return ret +} + +function latin1Slice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i]) + } + return ret +} + +function hexSlice (buf, start, end) { + var len = buf.length + + if (!start || start < 0) start = 0 + if (!end || end < 0 || end > len) end = len + + var out = '' + for (var i = start; i < end; ++i) { + out += toHex(buf[i]) + } + return out +} + +function utf16leSlice (buf, start, end) { + var bytes = buf.slice(start, end) + var res = '' + for (var i = 0; i < bytes.length; i += 2) { + res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256)) + } + return res +} + +Buffer.prototype.slice = function slice (start, end) { + var len = this.length + start = ~~start + end = end === undefined ? len : ~~end + + if (start < 0) { + start += len + if (start < 0) start = 0 + } else if (start > len) { + start = len + } + + if (end < 0) { + end += len + if (end < 0) end = 0 + } else if (end > len) { + end = len + } + + if (end < start) end = start + + var newBuf = this.subarray(start, end) + // Return an augmented `Uint8Array` instance + newBuf.__proto__ = Buffer.prototype + return newBuf +} + +/* + * Need to make sure that buffer isn't trying to write out of bounds. + */ +function checkOffset (offset, ext, length) { + if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') + if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') +} + +Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + + return val +} + +Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + checkOffset(offset, byteLength, this.length) + } + + var val = this[offset + --byteLength] + var mul = 1 + while (byteLength > 0 && (mul *= 0x100)) { + val += this[offset + --byteLength] * mul + } + + return val +} + +Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + return this[offset] +} + +Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return this[offset] | (this[offset + 1] << 8) +} + +Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return (this[offset] << 8) | this[offset + 1] +} + +Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return ((this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16)) + + (this[offset + 3] * 0x1000000) +} + +Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] * 0x1000000) + + ((this[offset + 1] << 16) | + (this[offset + 2] << 8) | + this[offset + 3]) +} + +Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var i = byteLength + var mul = 1 + var val = this[offset + --i] + while (i > 0 && (mul *= 0x100)) { + val += this[offset + --i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + if (!(this[offset] & 0x80)) return (this[offset]) + return ((0xff - this[offset] + 1) * -1) +} + +Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset] | (this[offset + 1] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset + 1] | (this[offset] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16) | + (this[offset + 3] << 24) +} + +Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] << 24) | + (this[offset + 1] << 16) | + (this[offset + 2] << 8) | + (this[offset + 3]) +} + +Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, true, 23, 4) +} + +Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, false, 23, 4) +} + +Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, true, 52, 8) +} + +Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, false, 52, 8) +} + +function checkInt (buf, value, offset, ext, max, min) { + if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') + if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') + if (offset + ext > buf.length) throw new RangeError('Index out of range') +} + +Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var mul = 1 + var i = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var i = byteLength - 1 + var mul = 1 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset + 3] = (value >>> 24) + this[offset + 2] = (value >>> 16) + this[offset + 1] = (value >>> 8) + this[offset] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = 0 + var mul = 1 + var sub = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = byteLength - 1 + var mul = 1 + var sub = 0 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) + if (value < 0) value = 0xff + value + 1 + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + this[offset + 2] = (value >>> 16) + this[offset + 3] = (value >>> 24) + return offset + 4 +} + +Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (value < 0) value = 0xffffffff + value + 1 + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +function checkIEEE754 (buf, value, offset, ext, max, min) { + if (offset + ext > buf.length) throw new RangeError('Index out of range') + if (offset < 0) throw new RangeError('Index out of range') +} + +function writeFloat (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) + } + ieee754.write(buf, value, offset, littleEndian, 23, 4) + return offset + 4 +} + +Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { + return writeFloat(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { + return writeFloat(this, value, offset, false, noAssert) +} + +function writeDouble (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) + } + ieee754.write(buf, value, offset, littleEndian, 52, 8) + return offset + 8 +} + +Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { + return writeDouble(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { + return writeDouble(this, value, offset, false, noAssert) +} + +// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) +Buffer.prototype.copy = function copy (target, targetStart, start, end) { + if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer') + if (!start) start = 0 + if (!end && end !== 0) end = this.length + if (targetStart >= target.length) targetStart = target.length + if (!targetStart) targetStart = 0 + if (end > 0 && end < start) end = start + + // Copy 0 bytes; we're done + if (end === start) return 0 + if (target.length === 0 || this.length === 0) return 0 + + // Fatal error conditions + if (targetStart < 0) { + throw new RangeError('targetStart out of bounds') + } + if (start < 0 || start >= this.length) throw new RangeError('Index out of range') + if (end < 0) throw new RangeError('sourceEnd out of bounds') + + // Are we oob? + if (end > this.length) end = this.length + if (target.length - targetStart < end - start) { + end = target.length - targetStart + start + } + + var len = end - start + + if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') { + // Use built-in when available, missing from IE11 + this.copyWithin(targetStart, start, end) + } else if (this === target && start < targetStart && targetStart < end) { + // descending copy from end + for (var i = len - 1; i >= 0; --i) { + target[i + targetStart] = this[i + start] + } + } else { + Uint8Array.prototype.set.call( + target, + this.subarray(start, end), + targetStart + ) + } + + return len +} + +// Usage: +// buffer.fill(number[, offset[, end]]) +// buffer.fill(buffer[, offset[, end]]) +// buffer.fill(string[, offset[, end]][, encoding]) +Buffer.prototype.fill = function fill (val, start, end, encoding) { + // Handle string cases: + if (typeof val === 'string') { + if (typeof start === 'string') { + encoding = start + start = 0 + end = this.length + } else if (typeof end === 'string') { + encoding = end + end = this.length + } + if (encoding !== undefined && typeof encoding !== 'string') { + throw new TypeError('encoding must be a string') + } + if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { + throw new TypeError('Unknown encoding: ' + encoding) + } + if (val.length === 1) { + var code = val.charCodeAt(0) + if ((encoding === 'utf8' && code < 128) || + encoding === 'latin1') { + // Fast path: If `val` fits into a single byte, use that numeric value. + val = code + } + } + } else if (typeof val === 'number') { + val = val & 255 + } + + // Invalid ranges are not set to a default, so can range check early. + if (start < 0 || this.length < start || this.length < end) { + throw new RangeError('Out of range index') + } + + if (end <= start) { + return this + } + + start = start >>> 0 + end = end === undefined ? this.length : end >>> 0 + + if (!val) val = 0 + + var i + if (typeof val === 'number') { + for (i = start; i < end; ++i) { + this[i] = val + } + } else { + var bytes = Buffer.isBuffer(val) + ? val + : Buffer.from(val, encoding) + var len = bytes.length + if (len === 0) { + throw new TypeError('The value "' + val + + '" is invalid for argument "value"') + } + for (i = 0; i < end - start; ++i) { + this[i + start] = bytes[i % len] + } + } + + return this +} + +// HELPER FUNCTIONS +// ================ + +var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g + +function base64clean (str) { + // Node takes equal signs as end of the Base64 encoding + str = str.split('=')[0] + // Node strips out invalid characters like \n and \t from the string, base64-js does not + str = str.trim().replace(INVALID_BASE64_RE, '') + // Node converts strings with length < 2 to '' + if (str.length < 2) return '' + // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not + while (str.length % 4 !== 0) { + str = str + '=' + } + return str +} + +function toHex (n) { + if (n < 16) return '0' + n.toString(16) + return n.toString(16) +} + +function utf8ToBytes (string, units) { + units = units || Infinity + var codePoint + var length = string.length + var leadSurrogate = null + var bytes = [] + + for (var i = 0; i < length; ++i) { + codePoint = string.charCodeAt(i) + + // is surrogate component + if (codePoint > 0xD7FF && codePoint < 0xE000) { + // last char was a lead + if (!leadSurrogate) { + // no lead yet + if (codePoint > 0xDBFF) { + // unexpected trail + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } else if (i + 1 === length) { + // unpaired lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } + + // valid lead + leadSurrogate = codePoint + + continue + } + + // 2 leads in a row + if (codePoint < 0xDC00) { + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + leadSurrogate = codePoint + continue + } + + // valid surrogate pair + codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 + } else if (leadSurrogate) { + // valid bmp char, but last char was a lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + } + + leadSurrogate = null + + // encode utf8 + if (codePoint < 0x80) { + if ((units -= 1) < 0) break + bytes.push(codePoint) + } else if (codePoint < 0x800) { + if ((units -= 2) < 0) break + bytes.push( + codePoint >> 0x6 | 0xC0, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x10000) { + if ((units -= 3) < 0) break + bytes.push( + codePoint >> 0xC | 0xE0, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x110000) { + if ((units -= 4) < 0) break + bytes.push( + codePoint >> 0x12 | 0xF0, + codePoint >> 0xC & 0x3F | 0x80, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else { + throw new Error('Invalid code point') + } + } + + return bytes +} + +function asciiToBytes (str) { + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + // Node's code seems to be doing this and not & 0x7F.. + byteArray.push(str.charCodeAt(i) & 0xFF) + } + return byteArray +} + +function utf16leToBytes (str, units) { + var c, hi, lo + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + if ((units -= 2) < 0) break + + c = str.charCodeAt(i) + hi = c >> 8 + lo = c % 256 + byteArray.push(lo) + byteArray.push(hi) + } + + return byteArray +} + +function base64ToBytes (str) { + return base64.toByteArray(base64clean(str)) +} + +function blitBuffer (src, dst, offset, length) { + for (var i = 0; i < length; ++i) { + if ((i + offset >= dst.length) || (i >= src.length)) break + dst[i + offset] = src[i] + } + return i +} + +// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass +// the `instanceof` check but they should be treated as of that type. +// See: https://github.com/feross/buffer/issues/166 +function isInstance (obj, type) { + return obj instanceof type || + (obj != null && obj.constructor != null && obj.constructor.name != null && + obj.constructor.name === type.name) +} +function numberIsNaN (obj) { + // For IE11 support + return obj !== obj // eslint-disable-line no-self-compare +} + +}).call(this)}).call(this,_glvis_("buffer").Buffer) +},{"base64-js":1,"buffer":3,"ieee754":4}],4:[function(_glvis_,module,exports){ +exports.read = function (buffer, offset, isLE, mLen, nBytes) { + var e, m + var eLen = (nBytes * 8) - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var nBits = -7 + var i = isLE ? (nBytes - 1) : 0 + var d = isLE ? -1 : 1 + var s = buffer[offset + i] + + i += d + + e = s & ((1 << (-nBits)) - 1) + s >>= (-nBits) + nBits += eLen + for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {} + + m = e & ((1 << (-nBits)) - 1) + e >>= (-nBits) + nBits += mLen + for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {} + + if (e === 0) { + e = 1 - eBias + } else if (e === eMax) { + return m ? NaN : ((s ? -1 : 1) * Infinity) + } else { + m = m + Math.pow(2, mLen) + e = e - eBias + } + return (s ? -1 : 1) * m * Math.pow(2, e - mLen) +} + +exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { + var e, m, c + var eLen = (nBytes * 8) - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0) + var i = isLE ? 0 : (nBytes - 1) + var d = isLE ? 1 : -1 + var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0 + + value = Math.abs(value) + + if (isNaN(value) || value === Infinity) { + m = isNaN(value) ? 1 : 0 + e = eMax + } else { + e = Math.floor(Math.log(value) / Math.LN2) + if (value * (c = Math.pow(2, -e)) < 1) { + e-- + c *= 2 + } + if (e + eBias >= 1) { + value += rt / c + } else { + value += rt * Math.pow(2, 1 - eBias) + } + if (value * c >= 2) { + e++ + c /= 2 + } + + if (e + eBias >= eMax) { + m = 0 + e = eMax + } else if (e + eBias >= 1) { + m = ((value * c) - 1) * Math.pow(2, mLen) + e = e + eBias + } else { + m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen) + e = 0 + } + } + + for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} + + e = (e << mLen) | m + eLen += mLen + for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} + + buffer[offset + i - d] |= s * 128 +} + +},{}],5:[function(_glvis_,module,exports){ +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +process.title = 'browser'; +process.browser = true; +process.env = {}; +process.argv = []; +process.version = ''; // empty string to avoid regexp issues +process.versions = {}; + +function noop() {} + +process.on = noop; +process.addListener = noop; +process.once = noop; +process.off = noop; +process.removeListener = noop; +process.removeAllListeners = noop; +process.emit = noop; +process.prependListener = noop; +process.prependOnceListener = noop; + +process.listeners = function (name) { return [] } + +process.binding = function (name) { + throw new Error('process.binding is not supported'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + +},{}],6:[function(_glvis_,module,exports){ +module.exports = { + alpha_shape: _glvis_('alpha-shape'), + convex_hull: _glvis_('convex-hull'), + delaunay_triangulate: _glvis_('delaunay-triangulate'), + gl_cone3d: _glvis_('gl-cone3d'), + gl_error3d: _glvis_('gl-error3d'), + gl_heatmap2d: _glvis_('gl-heatmap2d'), + gl_line3d: _glvis_('gl-line3d'), + gl_mesh3d: _glvis_('gl-mesh3d'), + gl_plot2d: _glvis_('gl-plot2d'), + gl_plot3d: _glvis_('gl-plot3d'), + gl_pointcloud2d: _glvis_('gl-pointcloud2d'), + gl_scatter3d: _glvis_('gl-scatter3d'), + gl_select_box: _glvis_('gl-select-box'), + gl_spikes2d: _glvis_('gl-spikes2d'), + gl_streamtube3d: _glvis_('gl-streamtube3d'), + gl_surface3d: _glvis_('gl-surface3d'), + ndarray: _glvis_('ndarray'), + ndarray_linear_interpolate: _glvis_('ndarray-linear-interpolate'), +}; + +},{"alpha-shape":12,"convex-hull":58,"delaunay-triangulate":63,"gl-cone3d":79,"gl-error3d":84,"gl-heatmap2d":88,"gl-line3d":91,"gl-mesh3d":112,"gl-plot2d":118,"gl-plot3d":121,"gl-pointcloud2d":123,"gl-scatter3d":128,"gl-select-box":130,"gl-spikes2d":139,"gl-streamtube3d":143,"gl-surface3d":145,"ndarray":259,"ndarray-linear-interpolate":253}],7:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createViewController + +var createTurntable = _glvis_('turntable-camera-controller') +var createOrbit = _glvis_('orbit-camera-controller') +var createMatrix = _glvis_('matrix-camera-controller') + +function ViewController(controllers, mode) { + this._controllerNames = Object.keys(controllers) + this._controllerList = this._controllerNames.map(function(n) { + return controllers[n] + }) + this._mode = mode + this._active = controllers[mode] + if(!this._active) { + this._mode = 'turntable' + this._active = controllers.turntable + } + this.modes = this._controllerNames + this.computedMatrix = this._active.computedMatrix + this.computedEye = this._active.computedEye + this.computedUp = this._active.computedUp + this.computedCenter = this._active.computedCenter + this.computedRadius = this._active.computedRadius +} + +var proto = ViewController.prototype + +proto.flush = function(a0) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].flush(a0) + } +} +proto.idle = function(a0) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].idle(a0) + } +} +proto.lookAt = function(a0, a1, a2, a3) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].lookAt(a0, a1, a2, a3) + } +} +proto.rotate = function(a0, a1, a2, a3) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].rotate(a0, a1, a2, a3) + } +} +proto.pan = function(a0, a1, a2, a3) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].pan(a0, a1, a2, a3) + } +} +proto.translate = function(a0, a1, a2, a3) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].translate(a0, a1, a2, a3) + } +} +proto.setMatrix = function(a0, a1) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].setMatrix(a0, a1) + } +} +proto.setDistanceLimits = function(a0, a1) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].setDistanceLimits(a0, a1) + } +} +proto.setDistance = function(a0, a1) { + var cc = this._controllerList + for (var i = 0; i < cc.length; ++i) { + cc[i].setDistance(a0, a1) + } +} + +proto.recalcMatrix = function(t) { + this._active.recalcMatrix(t) +} + +proto.getDistance = function(t) { + return this._active.getDistance(t) +} +proto.getDistanceLimits = function(out) { + return this._active.getDistanceLimits(out) +} + +proto.lastT = function() { + return this._active.lastT() +} + +proto.setMode = function(mode) { + if(mode === this._mode) { + return + } + var idx = this._controllerNames.indexOf(mode) + if(idx < 0) { + return + } + var prev = this._active + var next = this._controllerList[idx] + var lastT = Math.max(prev.lastT(), next.lastT()) + + prev.recalcMatrix(lastT) + next.setMatrix(lastT, prev.computedMatrix) + + this._active = next + this._mode = mode + + //Update matrix properties + this.computedMatrix = this._active.computedMatrix + this.computedEye = this._active.computedEye + this.computedUp = this._active.computedUp + this.computedCenter = this._active.computedCenter + this.computedRadius = this._active.computedRadius +} + +proto.getMode = function() { + return this._mode +} + +function createViewController(options) { + options = options || {} + + var eye = options.eye || [0,0,1] + var center = options.center || [0,0,0] + var up = options.up || [0,1,0] + var limits = options.distanceLimits || [0, Infinity] + var mode = options.mode || 'turntable' + + var turntable = createTurntable() + var orbit = createOrbit() + var matrix = createMatrix() + + turntable.setDistanceLimits(limits[0], limits[1]) + turntable.lookAt(0, eye, center, up) + orbit.setDistanceLimits(limits[0], limits[1]) + orbit.lookAt(0, eye, center, up) + matrix.setDistanceLimits(limits[0], limits[1]) + matrix.lookAt(0, eye, center, up) + + return new ViewController({ + turntable: turntable, + orbit: orbit, + matrix: matrix + }, mode) +} +},{"matrix-camera-controller":245,"orbit-camera-controller":263,"turntable-camera-controller":305}],8:[function(_glvis_,module,exports){ +'use strict' + +var weakMap = typeof WeakMap === 'undefined' ? _glvis_('weak-map') : WeakMap +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') + +var TriangleCache = new weakMap() + +function createABigTriangle(gl) { + + var triangleVAO = TriangleCache.get(gl) + var handle = triangleVAO && (triangleVAO._triangleBuffer.handle || triangleVAO._triangleBuffer.buffer) + if(!handle || !gl.isBuffer(handle)) { + var buf = createBuffer(gl, new Float32Array([-1, -1, -1, 4, 4, -1])) + triangleVAO = createVAO(gl, [ + { buffer: buf, + type: gl.FLOAT, + size: 2 + } + ]) + triangleVAO._triangleBuffer = buf + TriangleCache.set(gl, triangleVAO) + } + triangleVAO.bind() + gl.drawArrays(gl.TRIANGLES, 0, 3) + triangleVAO.unbind() +} + +module.exports = createABigTriangle + +},{"gl-buffer":78,"gl-vao":150,"weak-map":313}],9:[function(_glvis_,module,exports){ +var padLeft = _glvis_('pad-left') + +module.exports = addLineNumbers +function addLineNumbers (string, start, delim) { + start = typeof start === 'number' ? start : 1 + delim = delim || ': ' + + var lines = string.split(/\r?\n/) + var totalDigits = String(lines.length + start - 1).length + return lines.map(function (line, i) { + var c = i + start + var digits = String(c).length + var prefix = padLeft(c, totalDigits - digits) + return prefix + delim + line + }).join('\n') +} + +},{"pad-left":264}],10:[function(_glvis_,module,exports){ +'use strict' + +module.exports = affineHull + +var orient = _glvis_('robust-orientation') + +function linearlyIndependent(points, d) { + var nhull = new Array(d+1) + for(var i=0; i 0) { + a = a.ushln(shift) + } else if(shift < 0) { + b = b.ushln(-shift) + } + return rationalize(a, b) +} + +},{"./div":17,"./is-rat":19,"./lib/is-bn":23,"./lib/num-to-bn":24,"./lib/rationalize":25,"./lib/str-to-bn":26}],19:[function(_glvis_,module,exports){ +'use strict' + +var isBN = _glvis_('./lib/is-bn') + +module.exports = isRat + +function isRat(x) { + return Array.isArray(x) && x.length === 2 && isBN(x[0]) && isBN(x[1]) +} + +},{"./lib/is-bn":23}],20:[function(_glvis_,module,exports){ +'use strict' + +var BN = _glvis_('bn.js') + +module.exports = sign + +function sign (x) { + return x.cmp(new BN(0)) +} + +},{"bn.js":33}],21:[function(_glvis_,module,exports){ +'use strict' + +var sign = _glvis_('./bn-sign') + +module.exports = bn2num + +//TODO: Make this better +function bn2num(b) { + var l = b.length + var words = b.words + var out = 0 + if (l === 1) { + out = words[0] + } else if (l === 2) { + out = words[0] + (words[1] * 0x4000000) + } else { + for (var i = 0; i < l; i++) { + var w = words[i] + out += w * Math.pow(0x4000000, i) + } + } + return sign(b) * out +} + +},{"./bn-sign":20}],22:[function(_glvis_,module,exports){ +'use strict' + +var db = _glvis_('double-bits') +var ctz = _glvis_('bit-twiddle').countTrailingZeros + +module.exports = ctzNumber + +//Counts the number of trailing zeros +function ctzNumber(x) { + var l = ctz(db.lo(x)) + if(l < 32) { + return l + } + var h = ctz(db.hi(x)) + if(h > 20) { + return 52 + } + return h + 32 +} + +},{"bit-twiddle":32,"double-bits":64}],23:[function(_glvis_,module,exports){ +'use strict' + +var BN = _glvis_('bn.js') + +module.exports = isBN + +//Test if x is a bignumber +//FIXME: obviously this is the wrong way to do it +function isBN(x) { + return x && typeof x === 'object' && Boolean(x.words) +} + +},{"bn.js":33}],24:[function(_glvis_,module,exports){ +'use strict' + +var BN = _glvis_('bn.js') +var db = _glvis_('double-bits') + +module.exports = num2bn + +function num2bn(x) { + var e = db.exponent(x) + if(e < 52) { + return new BN(x) + } else { + return (new BN(x * Math.pow(2, 52-e))).ushln(e-52) + } +} + +},{"bn.js":33,"double-bits":64}],25:[function(_glvis_,module,exports){ +'use strict' + +var num2bn = _glvis_('./num-to-bn') +var sign = _glvis_('./bn-sign') + +module.exports = rationalize + +function rationalize(numer, denom) { + var snumer = sign(numer) + var sdenom = sign(denom) + if(snumer === 0) { + return [num2bn(0), num2bn(1)] + } + if(sdenom === 0) { + return [num2bn(0), num2bn(0)] + } + if(sdenom < 0) { + numer = numer.neg() + denom = denom.neg() + } + var d = numer.gcd(denom) + if(d.cmpn(1)) { + return [ numer.div(d), denom.div(d) ] + } + return [ numer, denom ] +} + +},{"./bn-sign":20,"./num-to-bn":24}],26:[function(_glvis_,module,exports){ +'use strict' + +var BN = _glvis_('bn.js') + +module.exports = str2BN + +function str2BN(x) { + return new BN(x) +} + +},{"bn.js":33}],27:[function(_glvis_,module,exports){ +'use strict' + +var rationalize = _glvis_('./lib/rationalize') + +module.exports = mul + +function mul(a, b) { + return rationalize(a[0].mul(b[0]), a[1].mul(b[1])) +} + +},{"./lib/rationalize":25}],28:[function(_glvis_,module,exports){ +'use strict' + +var bnsign = _glvis_('./lib/bn-sign') + +module.exports = sign + +function sign(x) { + return bnsign(x[0]) * bnsign(x[1]) +} + +},{"./lib/bn-sign":20}],29:[function(_glvis_,module,exports){ +'use strict' + +var rationalize = _glvis_('./lib/rationalize') + +module.exports = sub + +function sub(a, b) { + return rationalize(a[0].mul(b[1]).sub(a[1].mul(b[0])), a[1].mul(b[1])) +} + +},{"./lib/rationalize":25}],30:[function(_glvis_,module,exports){ +'use strict' + +var bn2num = _glvis_('./lib/bn-to-num') +var ctz = _glvis_('./lib/ctz') + +module.exports = roundRat + +// Round a rational to the closest float +function roundRat (f) { + var a = f[0] + var b = f[1] + if (a.cmpn(0) === 0) { + return 0 + } + var h = a.abs().divmod(b.abs()) + var iv = h.div + var x = bn2num(iv) + var ir = h.mod + var sgn = (a.negative !== b.negative) ? -1 : 1 + if (ir.cmpn(0) === 0) { + return sgn * x + } + if (x) { + var s = ctz(x) + 4 + var y = bn2num(ir.ushln(s).divRound(b)) + return sgn * (x + y * Math.pow(2, -s)) + } else { + var ybits = b.bitLength() - ir.bitLength() + 53 + var y = bn2num(ir.ushln(ybits).divRound(b)) + if (ybits < 1023) { + return sgn * y * Math.pow(2, -ybits) + } + y *= Math.pow(2, -1023) + return sgn * y * Math.pow(2, 1023 - ybits) + } +} + +},{"./lib/bn-to-num":21,"./lib/ctz":22}],31:[function(_glvis_,module,exports){ +"use strict" + +// (a, y, c, l, h) = (array, y[, cmp, lo, hi]) + +function ge(a, y, c, l, h) { + var i = h + 1; + while (l <= h) { + var m = (l + h) >>> 1, x = a[m]; + var p = (c !== undefined) ? c(x, y) : (x - y); + if (p >= 0) { i = m; h = m - 1 } else { l = m + 1 } + } + return i; +}; + +function gt(a, y, c, l, h) { + var i = h + 1; + while (l <= h) { + var m = (l + h) >>> 1, x = a[m]; + var p = (c !== undefined) ? c(x, y) : (x - y); + if (p > 0) { i = m; h = m - 1 } else { l = m + 1 } + } + return i; +}; + +function lt(a, y, c, l, h) { + var i = l - 1; + while (l <= h) { + var m = (l + h) >>> 1, x = a[m]; + var p = (c !== undefined) ? c(x, y) : (x - y); + if (p < 0) { i = m; l = m + 1 } else { h = m - 1 } + } + return i; +}; + +function le(a, y, c, l, h) { + var i = l - 1; + while (l <= h) { + var m = (l + h) >>> 1, x = a[m]; + var p = (c !== undefined) ? c(x, y) : (x - y); + if (p <= 0) { i = m; l = m + 1 } else { h = m - 1 } + } + return i; +}; + +function eq(a, y, c, l, h) { + while (l <= h) { + var m = (l + h) >>> 1, x = a[m]; + var p = (c !== undefined) ? c(x, y) : (x - y); + if (p === 0) { return m } + if (p <= 0) { l = m + 1 } else { h = m - 1 } + } + return -1; +}; + +function norm(a, y, c, l, h, f) { + if (typeof c === 'function') { + return f(a, y, c, (l === undefined) ? 0 : l | 0, (h === undefined) ? a.length - 1 : h | 0); + } + return f(a, y, undefined, (c === undefined) ? 0 : c | 0, (l === undefined) ? a.length - 1 : l | 0); +} + +module.exports = { + ge: function(a, y, c, l, h) { return norm(a, y, c, l, h, ge)}, + gt: function(a, y, c, l, h) { return norm(a, y, c, l, h, gt)}, + lt: function(a, y, c, l, h) { return norm(a, y, c, l, h, lt)}, + le: function(a, y, c, l, h) { return norm(a, y, c, l, h, le)}, + eq: function(a, y, c, l, h) { return norm(a, y, c, l, h, eq)} +} + +},{}],32:[function(_glvis_,module,exports){ +/** + * Bit twiddling hacks for JavaScript. + * + * Author: Mikola Lysenko + * + * Ported from Stanford bit twiddling hack library: + * http://graphics.stanford.edu/~seander/bithacks.html + */ + +"use strict"; "use restrict"; + +//Number of bits in an integer +var INT_BITS = 32; + +//Constants +exports.INT_BITS = INT_BITS; +exports.INT_MAX = 0x7fffffff; +exports.INT_MIN = -1<<(INT_BITS-1); + +//Returns -1, 0, +1 depending on sign of x +exports.sign = function(v) { + return (v > 0) - (v < 0); +} + +//Computes absolute value of integer +exports.abs = function(v) { + var mask = v >> (INT_BITS-1); + return (v ^ mask) - mask; +} + +//Computes minimum of integers x and y +exports.min = function(x, y) { + return y ^ ((x ^ y) & -(x < y)); +} + +//Computes maximum of integers x and y +exports.max = function(x, y) { + return x ^ ((x ^ y) & -(x < y)); +} + +//Checks if a number is a power of two +exports.isPow2 = function(v) { + return !(v & (v-1)) && (!!v); +} + +//Computes log base 2 of v +exports.log2 = function(v) { + var r, shift; + r = (v > 0xFFFF) << 4; v >>>= r; + shift = (v > 0xFF ) << 3; v >>>= shift; r |= shift; + shift = (v > 0xF ) << 2; v >>>= shift; r |= shift; + shift = (v > 0x3 ) << 1; v >>>= shift; r |= shift; + return r | (v >> 1); +} + +//Computes log base 10 of v +exports.log10 = function(v) { + return (v >= 1000000000) ? 9 : (v >= 100000000) ? 8 : (v >= 10000000) ? 7 : + (v >= 1000000) ? 6 : (v >= 100000) ? 5 : (v >= 10000) ? 4 : + (v >= 1000) ? 3 : (v >= 100) ? 2 : (v >= 10) ? 1 : 0; +} + +//Counts number of bits +exports.popCount = function(v) { + v = v - ((v >>> 1) & 0x55555555); + v = (v & 0x33333333) + ((v >>> 2) & 0x33333333); + return ((v + (v >>> 4) & 0xF0F0F0F) * 0x1010101) >>> 24; +} + +//Counts number of trailing zeros +function countTrailingZeros(v) { + var c = 32; + v &= -v; + if (v) c--; + if (v & 0x0000FFFF) c -= 16; + if (v & 0x00FF00FF) c -= 8; + if (v & 0x0F0F0F0F) c -= 4; + if (v & 0x33333333) c -= 2; + if (v & 0x55555555) c -= 1; + return c; +} +exports.countTrailingZeros = countTrailingZeros; + +//Rounds to next power of 2 +exports.nextPow2 = function(v) { + v += v === 0; + --v; + v |= v >>> 1; + v |= v >>> 2; + v |= v >>> 4; + v |= v >>> 8; + v |= v >>> 16; + return v + 1; +} + +//Rounds down to previous power of 2 +exports.prevPow2 = function(v) { + v |= v >>> 1; + v |= v >>> 2; + v |= v >>> 4; + v |= v >>> 8; + v |= v >>> 16; + return v - (v>>>1); +} + +//Computes parity of word +exports.parity = function(v) { + v ^= v >>> 16; + v ^= v >>> 8; + v ^= v >>> 4; + v &= 0xf; + return (0x6996 >>> v) & 1; +} + +var REVERSE_TABLE = new Array(256); + +(function(tab) { + for(var i=0; i<256; ++i) { + var v = i, r = i, s = 7; + for (v >>>= 1; v; v >>>= 1) { + r <<= 1; + r |= v & 1; + --s; + } + tab[i] = (r << s) & 0xff; + } +})(REVERSE_TABLE); + +//Reverse bits in a 32 bit word +exports.reverse = function(v) { + return (REVERSE_TABLE[ v & 0xff] << 24) | + (REVERSE_TABLE[(v >>> 8) & 0xff] << 16) | + (REVERSE_TABLE[(v >>> 16) & 0xff] << 8) | + REVERSE_TABLE[(v >>> 24) & 0xff]; +} + +//Interleave bits of 2 coordinates with 16 bits. Useful for fast quadtree codes +exports.interleave2 = function(x, y) { + x &= 0xFFFF; + x = (x | (x << 8)) & 0x00FF00FF; + x = (x | (x << 4)) & 0x0F0F0F0F; + x = (x | (x << 2)) & 0x33333333; + x = (x | (x << 1)) & 0x55555555; + + y &= 0xFFFF; + y = (y | (y << 8)) & 0x00FF00FF; + y = (y | (y << 4)) & 0x0F0F0F0F; + y = (y | (y << 2)) & 0x33333333; + y = (y | (y << 1)) & 0x55555555; + + return x | (y << 1); +} + +//Extracts the nth interleaved component +exports.deinterleave2 = function(v, n) { + v = (v >>> n) & 0x55555555; + v = (v | (v >>> 1)) & 0x33333333; + v = (v | (v >>> 2)) & 0x0F0F0F0F; + v = (v | (v >>> 4)) & 0x00FF00FF; + v = (v | (v >>> 16)) & 0x000FFFF; + return (v << 16) >> 16; +} + + +//Interleave bits of 3 coordinates, each with 10 bits. Useful for fast octree codes +exports.interleave3 = function(x, y, z) { + x &= 0x3FF; + x = (x | (x<<16)) & 4278190335; + x = (x | (x<<8)) & 251719695; + x = (x | (x<<4)) & 3272356035; + x = (x | (x<<2)) & 1227133513; + + y &= 0x3FF; + y = (y | (y<<16)) & 4278190335; + y = (y | (y<<8)) & 251719695; + y = (y | (y<<4)) & 3272356035; + y = (y | (y<<2)) & 1227133513; + x |= (y << 1); + + z &= 0x3FF; + z = (z | (z<<16)) & 4278190335; + z = (z | (z<<8)) & 251719695; + z = (z | (z<<4)) & 3272356035; + z = (z | (z<<2)) & 1227133513; + + return x | (z << 2); +} + +//Extracts nth interleaved component of a 3-tuple +exports.deinterleave3 = function(v, n) { + v = (v >>> n) & 1227133513; + v = (v | (v>>>2)) & 3272356035; + v = (v | (v>>>4)) & 251719695; + v = (v | (v>>>8)) & 4278190335; + v = (v | (v>>>16)) & 0x3FF; + return (v<<22)>>22; +} + +//Computes next combination in colexicographic order (this is mistakenly called nextPermutation on the bit twiddling hacks page) +exports.nextCombination = function(v) { + var t = v | (v - 1); + return (t + 1) | (((~t & -~t) - 1) >>> (countTrailingZeros(v) + 1)); +} + + +},{}],33:[function(_glvis_,module,exports){ +(function (module, exports) { + 'use strict'; + + // Utils + function assert (val, msg) { + if (!val) throw new Error(msg || 'Assertion failed'); + } + + // Could use `inherits` module, but don't want to move from single file + // architecture yet. + function inherits (ctor, superCtor) { + ctor.super_ = superCtor; + var TempCtor = function () {}; + TempCtor.prototype = superCtor.prototype; + ctor.prototype = new TempCtor(); + ctor.prototype.constructor = ctor; + } + + // BN + + function BN (number, base, endian) { + if (BN.isBN(number)) { + return number; + } + + this.negative = 0; + this.words = null; + this.length = 0; + + // Reduction context + this.red = null; + + if (number !== null) { + if (base === 'le' || base === 'be') { + endian = base; + base = 10; + } + + this._init(number || 0, base || 10, endian || 'be'); + } + } + if (typeof module === 'object') { + module.exports = BN; + } else { + exports.BN = BN; + } + + BN.BN = BN; + BN.wordSize = 26; + + var Buffer; + try { + if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') { + Buffer = window.Buffer; + } else { + Buffer = _glvis_('buffer').Buffer; + } + } catch (e) { + } + + BN.isBN = function isBN (num) { + if (num instanceof BN) { + return true; + } + + return num !== null && typeof num === 'object' && + num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); + }; + + BN.max = function max (left, right) { + if (left.cmp(right) > 0) return left; + return right; + }; + + BN.min = function min (left, right) { + if (left.cmp(right) < 0) return left; + return right; + }; + + BN.prototype._init = function init (number, base, endian) { + if (typeof number === 'number') { + return this._initNumber(number, base, endian); + } + + if (typeof number === 'object') { + return this._initArray(number, base, endian); + } + + if (base === 'hex') { + base = 16; + } + assert(base === (base | 0) && base >= 2 && base <= 36); + + number = number.toString().replace(/\s+/g, ''); + var start = 0; + if (number[0] === '-') { + start++; + this.negative = 1; + } + + if (start < number.length) { + if (base === 16) { + this._parseHex(number, start, endian); + } else { + this._parseBase(number, base, start); + if (endian === 'le') { + this._initArray(this.toArray(), base, endian); + } + } + } + }; + + BN.prototype._initNumber = function _initNumber (number, base, endian) { + if (number < 0) { + this.negative = 1; + number = -number; + } + if (number < 0x4000000) { + this.words = [ number & 0x3ffffff ]; + this.length = 1; + } else if (number < 0x10000000000000) { + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff + ]; + this.length = 2; + } else { + assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff, + 1 + ]; + this.length = 3; + } + + if (endian !== 'le') return; + + // Reverse the bytes + this._initArray(this.toArray(), base, endian); + }; + + BN.prototype._initArray = function _initArray (number, base, endian) { + // Perhaps a Uint8Array + assert(typeof number.length === 'number'); + if (number.length <= 0) { + this.words = [ 0 ]; + this.length = 1; + return this; + } + + this.length = Math.ceil(number.length / 3); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + var j, w; + var off = 0; + if (endian === 'be') { + for (i = number.length - 1, j = 0; i >= 0; i -= 3) { + w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } else if (endian === 'le') { + for (i = 0, j = 0; i < number.length; i += 3) { + w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } + return this.strip(); + }; + + function parseHex4Bits (string, index) { + var c = string.charCodeAt(index); + // 'A' - 'F' + if (c >= 65 && c <= 70) { + return c - 55; + // 'a' - 'f' + } else if (c >= 97 && c <= 102) { + return c - 87; + // '0' - '9' + } else { + return (c - 48) & 0xf; + } + } + + function parseHexByte (string, lowerBound, index) { + var r = parseHex4Bits(string, index); + if (index - 1 >= lowerBound) { + r |= parseHex4Bits(string, index - 1) << 4; + } + return r; + } + + BN.prototype._parseHex = function _parseHex (number, start, endian) { + // Create possibly bigger array to ensure that it fits the number + this.length = Math.ceil((number.length - start) / 6); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + // 24-bits chunks + var off = 0; + var j = 0; + + var w; + if (endian === 'be') { + for (i = number.length - 1; i >= start; i -= 2) { + w = parseHexByte(number, start, i) << off; + this.words[j] |= w & 0x3ffffff; + if (off >= 18) { + off -= 18; + j += 1; + this.words[j] |= w >>> 26; + } else { + off += 8; + } + } + } else { + var parseLength = number.length - start; + for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) { + w = parseHexByte(number, start, i) << off; + this.words[j] |= w & 0x3ffffff; + if (off >= 18) { + off -= 18; + j += 1; + this.words[j] |= w >>> 26; + } else { + off += 8; + } + } + } + + this.strip(); + }; + + function parseBase (str, start, end, mul) { + var r = 0; + var len = Math.min(str.length, end); + for (var i = start; i < len; i++) { + var c = str.charCodeAt(i) - 48; + + r *= mul; + + // 'a' + if (c >= 49) { + r += c - 49 + 0xa; + + // 'A' + } else if (c >= 17) { + r += c - 17 + 0xa; + + // '0' - '9' + } else { + r += c; + } + } + return r; + } + + BN.prototype._parseBase = function _parseBase (number, base, start) { + // Initialize as zero + this.words = [ 0 ]; + this.length = 1; + + // Find length of limb in base + for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { + limbLen++; + } + limbLen--; + limbPow = (limbPow / base) | 0; + + var total = number.length - start; + var mod = total % limbLen; + var end = Math.min(total, total - mod) + start; + + var word = 0; + for (var i = start; i < end; i += limbLen) { + word = parseBase(number, i, i + limbLen, base); + + this.imuln(limbPow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + if (mod !== 0) { + var pow = 1; + word = parseBase(number, i, number.length, base); + + for (i = 0; i < mod; i++) { + pow *= base; + } + + this.imuln(pow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + this.strip(); + }; + + BN.prototype.copy = function copy (dest) { + dest.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + dest.words[i] = this.words[i]; + } + dest.length = this.length; + dest.negative = this.negative; + dest.red = this.red; + }; + + BN.prototype.clone = function clone () { + var r = new BN(null); + this.copy(r); + return r; + }; + + BN.prototype._expand = function _expand (size) { + while (this.length < size) { + this.words[this.length++] = 0; + } + return this; + }; + + // Remove leading `0` from `this` + BN.prototype.strip = function strip () { + while (this.length > 1 && this.words[this.length - 1] === 0) { + this.length--; + } + return this._normSign(); + }; + + BN.prototype._normSign = function _normSign () { + // -0 = 0 + if (this.length === 1 && this.words[0] === 0) { + this.negative = 0; + } + return this; + }; + + BN.prototype.inspect = function inspect () { + return (this.red ? ''; + }; + + /* + + var zeros = []; + var groupSizes = []; + var groupBases = []; + + var s = ''; + var i = -1; + while (++i < BN.wordSize) { + zeros[i] = s; + s += '0'; + } + groupSizes[0] = 0; + groupSizes[1] = 0; + groupBases[0] = 0; + groupBases[1] = 0; + var base = 2 - 1; + while (++base < 36 + 1) { + var groupSize = 0; + var groupBase = 1; + while (groupBase < (1 << BN.wordSize) / base) { + groupBase *= base; + groupSize += 1; + } + groupSizes[base] = groupSize; + groupBases[base] = groupBase; + } + + */ + + var zeros = [ + '', + '0', + '00', + '000', + '0000', + '00000', + '000000', + '0000000', + '00000000', + '000000000', + '0000000000', + '00000000000', + '000000000000', + '0000000000000', + '00000000000000', + '000000000000000', + '0000000000000000', + '00000000000000000', + '000000000000000000', + '0000000000000000000', + '00000000000000000000', + '000000000000000000000', + '0000000000000000000000', + '00000000000000000000000', + '000000000000000000000000', + '0000000000000000000000000' + ]; + + var groupSizes = [ + 0, 0, + 25, 16, 12, 11, 10, 9, 8, + 8, 7, 7, 7, 7, 6, 6, + 6, 6, 6, 6, 6, 5, 5, + 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5 + ]; + + var groupBases = [ + 0, 0, + 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, + 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, + 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, + 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, + 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 + ]; + + BN.prototype.toString = function toString (base, padding) { + base = base || 10; + padding = padding | 0 || 1; + + var out; + if (base === 16 || base === 'hex') { + out = ''; + var off = 0; + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = this.words[i]; + var word = (((w << off) | carry) & 0xffffff).toString(16); + carry = (w >>> (24 - off)) & 0xffffff; + if (carry !== 0 || i !== this.length - 1) { + out = zeros[6 - word.length] + word + out; + } else { + out = word + out; + } + off += 2; + if (off >= 26) { + off -= 26; + i--; + } + } + if (carry !== 0) { + out = carry.toString(16) + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + if (base === (base | 0) && base >= 2 && base <= 36) { + // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); + var groupSize = groupSizes[base]; + // var groupBase = Math.pow(base, groupSize); + var groupBase = groupBases[base]; + out = ''; + var c = this.clone(); + c.negative = 0; + while (!c.isZero()) { + var r = c.modn(groupBase).toString(base); + c = c.idivn(groupBase); + + if (!c.isZero()) { + out = zeros[groupSize - r.length] + r + out; + } else { + out = r + out; + } + } + if (this.isZero()) { + out = '0' + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + assert(false, 'Base should be between 2 and 36'); + }; + + BN.prototype.toNumber = function toNumber () { + var ret = this.words[0]; + if (this.length === 2) { + ret += this.words[1] * 0x4000000; + } else if (this.length === 3 && this.words[2] === 0x01) { + // NOTE: at this stage it is known that the top bit is set + ret += 0x10000000000000 + (this.words[1] * 0x4000000); + } else if (this.length > 2) { + assert(false, 'Number can only safely store up to 53 bits'); + } + return (this.negative !== 0) ? -ret : ret; + }; + + BN.prototype.toJSON = function toJSON () { + return this.toString(16); + }; + + BN.prototype.toBuffer = function toBuffer (endian, length) { + assert(typeof Buffer !== 'undefined'); + return this.toArrayLike(Buffer, endian, length); + }; + + BN.prototype.toArray = function toArray (endian, length) { + return this.toArrayLike(Array, endian, length); + }; + + BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { + var byteLength = this.byteLength(); + var reqLength = length || Math.max(1, byteLength); + assert(byteLength <= reqLength, 'byte array longer than desired length'); + assert(reqLength > 0, 'Requested array length <= 0'); + + this.strip(); + var littleEndian = endian === 'le'; + var res = new ArrayType(reqLength); + + var b, i; + var q = this.clone(); + if (!littleEndian) { + // Assume big-endian + for (i = 0; i < reqLength - byteLength; i++) { + res[i] = 0; + } + + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[reqLength - i - 1] = b; + } + } else { + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[i] = b; + } + + for (; i < reqLength; i++) { + res[i] = 0; + } + } + + return res; + }; + + if (Math.clz32) { + BN.prototype._countBits = function _countBits (w) { + return 32 - Math.clz32(w); + }; + } else { + BN.prototype._countBits = function _countBits (w) { + var t = w; + var r = 0; + if (t >= 0x1000) { + r += 13; + t >>>= 13; + } + if (t >= 0x40) { + r += 7; + t >>>= 7; + } + if (t >= 0x8) { + r += 4; + t >>>= 4; + } + if (t >= 0x02) { + r += 2; + t >>>= 2; + } + return r + t; + }; + } + + BN.prototype._zeroBits = function _zeroBits (w) { + // Short-cut + if (w === 0) return 26; + + var t = w; + var r = 0; + if ((t & 0x1fff) === 0) { + r += 13; + t >>>= 13; + } + if ((t & 0x7f) === 0) { + r += 7; + t >>>= 7; + } + if ((t & 0xf) === 0) { + r += 4; + t >>>= 4; + } + if ((t & 0x3) === 0) { + r += 2; + t >>>= 2; + } + if ((t & 0x1) === 0) { + r++; + } + return r; + }; + + // Return number of used bits in a BN + BN.prototype.bitLength = function bitLength () { + var w = this.words[this.length - 1]; + var hi = this._countBits(w); + return (this.length - 1) * 26 + hi; + }; + + function toBitArray (num) { + var w = new Array(num.bitLength()); + + for (var bit = 0; bit < w.length; bit++) { + var off = (bit / 26) | 0; + var wbit = bit % 26; + + w[bit] = (num.words[off] & (1 << wbit)) >>> wbit; + } + + return w; + } + + // Number of trailing zero bits + BN.prototype.zeroBits = function zeroBits () { + if (this.isZero()) return 0; + + var r = 0; + for (var i = 0; i < this.length; i++) { + var b = this._zeroBits(this.words[i]); + r += b; + if (b !== 26) break; + } + return r; + }; + + BN.prototype.byteLength = function byteLength () { + return Math.ceil(this.bitLength() / 8); + }; + + BN.prototype.toTwos = function toTwos (width) { + if (this.negative !== 0) { + return this.abs().inotn(width).iaddn(1); + } + return this.clone(); + }; + + BN.prototype.fromTwos = function fromTwos (width) { + if (this.testn(width - 1)) { + return this.notn(width).iaddn(1).ineg(); + } + return this.clone(); + }; + + BN.prototype.isNeg = function isNeg () { + return this.negative !== 0; + }; + + // Return negative clone of `this` + BN.prototype.neg = function neg () { + return this.clone().ineg(); + }; + + BN.prototype.ineg = function ineg () { + if (!this.isZero()) { + this.negative ^= 1; + } + + return this; + }; + + // Or `num` with `this` in-place + BN.prototype.iuor = function iuor (num) { + while (this.length < num.length) { + this.words[this.length++] = 0; + } + + for (var i = 0; i < num.length; i++) { + this.words[i] = this.words[i] | num.words[i]; + } + + return this.strip(); + }; + + BN.prototype.ior = function ior (num) { + assert((this.negative | num.negative) === 0); + return this.iuor(num); + }; + + // Or `num` with `this` + BN.prototype.or = function or (num) { + if (this.length > num.length) return this.clone().ior(num); + return num.clone().ior(this); + }; + + BN.prototype.uor = function uor (num) { + if (this.length > num.length) return this.clone().iuor(num); + return num.clone().iuor(this); + }; + + // And `num` with `this` in-place + BN.prototype.iuand = function iuand (num) { + // b = min-length(num, this) + var b; + if (this.length > num.length) { + b = num; + } else { + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = this.words[i] & num.words[i]; + } + + this.length = b.length; + + return this.strip(); + }; + + BN.prototype.iand = function iand (num) { + assert((this.negative | num.negative) === 0); + return this.iuand(num); + }; + + // And `num` with `this` + BN.prototype.and = function and (num) { + if (this.length > num.length) return this.clone().iand(num); + return num.clone().iand(this); + }; + + BN.prototype.uand = function uand (num) { + if (this.length > num.length) return this.clone().iuand(num); + return num.clone().iuand(this); + }; + + // Xor `num` with `this` in-place + BN.prototype.iuxor = function iuxor (num) { + // a.length > b.length + var a; + var b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = a.words[i] ^ b.words[i]; + } + + if (this !== a) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = a.length; + + return this.strip(); + }; + + BN.prototype.ixor = function ixor (num) { + assert((this.negative | num.negative) === 0); + return this.iuxor(num); + }; + + // Xor `num` with `this` + BN.prototype.xor = function xor (num) { + if (this.length > num.length) return this.clone().ixor(num); + return num.clone().ixor(this); + }; + + BN.prototype.uxor = function uxor (num) { + if (this.length > num.length) return this.clone().iuxor(num); + return num.clone().iuxor(this); + }; + + // Not ``this`` with ``width`` bitwidth + BN.prototype.inotn = function inotn (width) { + assert(typeof width === 'number' && width >= 0); + + var bytesNeeded = Math.ceil(width / 26) | 0; + var bitsLeft = width % 26; + + // Extend the buffer with leading zeroes + this._expand(bytesNeeded); + + if (bitsLeft > 0) { + bytesNeeded--; + } + + // Handle complete words + for (var i = 0; i < bytesNeeded; i++) { + this.words[i] = ~this.words[i] & 0x3ffffff; + } + + // Handle the residue + if (bitsLeft > 0) { + this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft)); + } + + // And remove leading zeroes + return this.strip(); + }; + + BN.prototype.notn = function notn (width) { + return this.clone().inotn(width); + }; + + // Set `bit` of `this` + BN.prototype.setn = function setn (bit, val) { + assert(typeof bit === 'number' && bit >= 0); + + var off = (bit / 26) | 0; + var wbit = bit % 26; + + this._expand(off + 1); + + if (val) { + this.words[off] = this.words[off] | (1 << wbit); + } else { + this.words[off] = this.words[off] & ~(1 << wbit); + } + + return this.strip(); + }; + + // Add `num` to `this` in-place + BN.prototype.iadd = function iadd (num) { + var r; + + // negative + positive + if (this.negative !== 0 && num.negative === 0) { + this.negative = 0; + r = this.isub(num); + this.negative ^= 1; + return this._normSign(); + + // positive + negative + } else if (this.negative === 0 && num.negative !== 0) { + num.negative = 0; + r = this.isub(num); + num.negative = 1; + return r._normSign(); + } + + // a.length > b.length + var a, b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) + (b.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + + this.length = a.length; + if (carry !== 0) { + this.words[this.length] = carry; + this.length++; + // Copy the rest of the words + } else if (a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + return this; + }; + + // Add `num` to `this` + BN.prototype.add = function add (num) { + var res; + if (num.negative !== 0 && this.negative === 0) { + num.negative = 0; + res = this.sub(num); + num.negative ^= 1; + return res; + } else if (num.negative === 0 && this.negative !== 0) { + this.negative = 0; + res = num.sub(this); + this.negative = 1; + return res; + } + + if (this.length > num.length) return this.clone().iadd(num); + + return num.clone().iadd(this); + }; + + // Subtract `num` from `this` in-place + BN.prototype.isub = function isub (num) { + // this - (-num) = this + num + if (num.negative !== 0) { + num.negative = 0; + var r = this.iadd(num); + num.negative = 1; + return r._normSign(); + + // -this - num = -(this + num) + } else if (this.negative !== 0) { + this.negative = 0; + this.iadd(num); + this.negative = 1; + return this._normSign(); + } + + // At this point both numbers are positive + var cmp = this.cmp(num); + + // Optimization - zeroify + if (cmp === 0) { + this.negative = 0; + this.length = 1; + this.words[0] = 0; + return this; + } + + // a > b + var a, b; + if (cmp > 0) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) - (b.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + + // Copy rest of the words + if (carry === 0 && i < a.length && a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = Math.max(this.length, i); + + if (a !== this) { + this.negative = 1; + } + + return this.strip(); + }; + + // Subtract `num` from `this` + BN.prototype.sub = function sub (num) { + return this.clone().isub(num); + }; + + function smallMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + var len = (self.length + num.length) | 0; + out.length = len; + len = (len - 1) | 0; + + // Peel one iteration (compiler can't do it, because of code complexity) + var a = self.words[0] | 0; + var b = num.words[0] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + var carry = (r / 0x4000000) | 0; + out.words[0] = lo; + + for (var k = 1; k < len; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = carry >>> 26; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = (k - j) | 0; + a = self.words[i] | 0; + b = num.words[j] | 0; + r = a * b + rword; + ncarry += (r / 0x4000000) | 0; + rword = r & 0x3ffffff; + } + out.words[k] = rword | 0; + carry = ncarry | 0; + } + if (carry !== 0) { + out.words[k] = carry | 0; + } else { + out.length--; + } + + return out.strip(); + } + + // TODO(indutny): it may be reasonable to omit it for users who don't need + // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit + // multiplication (like elliptic secp256k1). + var comb10MulTo = function comb10MulTo (self, num, out) { + var a = self.words; + var b = num.words; + var o = out.words; + var c = 0; + var lo; + var mid; + var hi; + var a0 = a[0] | 0; + var al0 = a0 & 0x1fff; + var ah0 = a0 >>> 13; + var a1 = a[1] | 0; + var al1 = a1 & 0x1fff; + var ah1 = a1 >>> 13; + var a2 = a[2] | 0; + var al2 = a2 & 0x1fff; + var ah2 = a2 >>> 13; + var a3 = a[3] | 0; + var al3 = a3 & 0x1fff; + var ah3 = a3 >>> 13; + var a4 = a[4] | 0; + var al4 = a4 & 0x1fff; + var ah4 = a4 >>> 13; + var a5 = a[5] | 0; + var al5 = a5 & 0x1fff; + var ah5 = a5 >>> 13; + var a6 = a[6] | 0; + var al6 = a6 & 0x1fff; + var ah6 = a6 >>> 13; + var a7 = a[7] | 0; + var al7 = a7 & 0x1fff; + var ah7 = a7 >>> 13; + var a8 = a[8] | 0; + var al8 = a8 & 0x1fff; + var ah8 = a8 >>> 13; + var a9 = a[9] | 0; + var al9 = a9 & 0x1fff; + var ah9 = a9 >>> 13; + var b0 = b[0] | 0; + var bl0 = b0 & 0x1fff; + var bh0 = b0 >>> 13; + var b1 = b[1] | 0; + var bl1 = b1 & 0x1fff; + var bh1 = b1 >>> 13; + var b2 = b[2] | 0; + var bl2 = b2 & 0x1fff; + var bh2 = b2 >>> 13; + var b3 = b[3] | 0; + var bl3 = b3 & 0x1fff; + var bh3 = b3 >>> 13; + var b4 = b[4] | 0; + var bl4 = b4 & 0x1fff; + var bh4 = b4 >>> 13; + var b5 = b[5] | 0; + var bl5 = b5 & 0x1fff; + var bh5 = b5 >>> 13; + var b6 = b[6] | 0; + var bl6 = b6 & 0x1fff; + var bh6 = b6 >>> 13; + var b7 = b[7] | 0; + var bl7 = b7 & 0x1fff; + var bh7 = b7 >>> 13; + var b8 = b[8] | 0; + var bl8 = b8 & 0x1fff; + var bh8 = b8 >>> 13; + var b9 = b[9] | 0; + var bl9 = b9 & 0x1fff; + var bh9 = b9 >>> 13; + + out.negative = self.negative ^ num.negative; + out.length = 19; + /* k = 0 */ + lo = Math.imul(al0, bl0); + mid = Math.imul(al0, bh0); + mid = (mid + Math.imul(ah0, bl0)) | 0; + hi = Math.imul(ah0, bh0); + var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0; + w0 &= 0x3ffffff; + /* k = 1 */ + lo = Math.imul(al1, bl0); + mid = Math.imul(al1, bh0); + mid = (mid + Math.imul(ah1, bl0)) | 0; + hi = Math.imul(ah1, bh0); + lo = (lo + Math.imul(al0, bl1)) | 0; + mid = (mid + Math.imul(al0, bh1)) | 0; + mid = (mid + Math.imul(ah0, bl1)) | 0; + hi = (hi + Math.imul(ah0, bh1)) | 0; + var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0; + w1 &= 0x3ffffff; + /* k = 2 */ + lo = Math.imul(al2, bl0); + mid = Math.imul(al2, bh0); + mid = (mid + Math.imul(ah2, bl0)) | 0; + hi = Math.imul(ah2, bh0); + lo = (lo + Math.imul(al1, bl1)) | 0; + mid = (mid + Math.imul(al1, bh1)) | 0; + mid = (mid + Math.imul(ah1, bl1)) | 0; + hi = (hi + Math.imul(ah1, bh1)) | 0; + lo = (lo + Math.imul(al0, bl2)) | 0; + mid = (mid + Math.imul(al0, bh2)) | 0; + mid = (mid + Math.imul(ah0, bl2)) | 0; + hi = (hi + Math.imul(ah0, bh2)) | 0; + var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0; + w2 &= 0x3ffffff; + /* k = 3 */ + lo = Math.imul(al3, bl0); + mid = Math.imul(al3, bh0); + mid = (mid + Math.imul(ah3, bl0)) | 0; + hi = Math.imul(ah3, bh0); + lo = (lo + Math.imul(al2, bl1)) | 0; + mid = (mid + Math.imul(al2, bh1)) | 0; + mid = (mid + Math.imul(ah2, bl1)) | 0; + hi = (hi + Math.imul(ah2, bh1)) | 0; + lo = (lo + Math.imul(al1, bl2)) | 0; + mid = (mid + Math.imul(al1, bh2)) | 0; + mid = (mid + Math.imul(ah1, bl2)) | 0; + hi = (hi + Math.imul(ah1, bh2)) | 0; + lo = (lo + Math.imul(al0, bl3)) | 0; + mid = (mid + Math.imul(al0, bh3)) | 0; + mid = (mid + Math.imul(ah0, bl3)) | 0; + hi = (hi + Math.imul(ah0, bh3)) | 0; + var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0; + w3 &= 0x3ffffff; + /* k = 4 */ + lo = Math.imul(al4, bl0); + mid = Math.imul(al4, bh0); + mid = (mid + Math.imul(ah4, bl0)) | 0; + hi = Math.imul(ah4, bh0); + lo = (lo + Math.imul(al3, bl1)) | 0; + mid = (mid + Math.imul(al3, bh1)) | 0; + mid = (mid + Math.imul(ah3, bl1)) | 0; + hi = (hi + Math.imul(ah3, bh1)) | 0; + lo = (lo + Math.imul(al2, bl2)) | 0; + mid = (mid + Math.imul(al2, bh2)) | 0; + mid = (mid + Math.imul(ah2, bl2)) | 0; + hi = (hi + Math.imul(ah2, bh2)) | 0; + lo = (lo + Math.imul(al1, bl3)) | 0; + mid = (mid + Math.imul(al1, bh3)) | 0; + mid = (mid + Math.imul(ah1, bl3)) | 0; + hi = (hi + Math.imul(ah1, bh3)) | 0; + lo = (lo + Math.imul(al0, bl4)) | 0; + mid = (mid + Math.imul(al0, bh4)) | 0; + mid = (mid + Math.imul(ah0, bl4)) | 0; + hi = (hi + Math.imul(ah0, bh4)) | 0; + var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0; + w4 &= 0x3ffffff; + /* k = 5 */ + lo = Math.imul(al5, bl0); + mid = Math.imul(al5, bh0); + mid = (mid + Math.imul(ah5, bl0)) | 0; + hi = Math.imul(ah5, bh0); + lo = (lo + Math.imul(al4, bl1)) | 0; + mid = (mid + Math.imul(al4, bh1)) | 0; + mid = (mid + Math.imul(ah4, bl1)) | 0; + hi = (hi + Math.imul(ah4, bh1)) | 0; + lo = (lo + Math.imul(al3, bl2)) | 0; + mid = (mid + Math.imul(al3, bh2)) | 0; + mid = (mid + Math.imul(ah3, bl2)) | 0; + hi = (hi + Math.imul(ah3, bh2)) | 0; + lo = (lo + Math.imul(al2, bl3)) | 0; + mid = (mid + Math.imul(al2, bh3)) | 0; + mid = (mid + Math.imul(ah2, bl3)) | 0; + hi = (hi + Math.imul(ah2, bh3)) | 0; + lo = (lo + Math.imul(al1, bl4)) | 0; + mid = (mid + Math.imul(al1, bh4)) | 0; + mid = (mid + Math.imul(ah1, bl4)) | 0; + hi = (hi + Math.imul(ah1, bh4)) | 0; + lo = (lo + Math.imul(al0, bl5)) | 0; + mid = (mid + Math.imul(al0, bh5)) | 0; + mid = (mid + Math.imul(ah0, bl5)) | 0; + hi = (hi + Math.imul(ah0, bh5)) | 0; + var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0; + w5 &= 0x3ffffff; + /* k = 6 */ + lo = Math.imul(al6, bl0); + mid = Math.imul(al6, bh0); + mid = (mid + Math.imul(ah6, bl0)) | 0; + hi = Math.imul(ah6, bh0); + lo = (lo + Math.imul(al5, bl1)) | 0; + mid = (mid + Math.imul(al5, bh1)) | 0; + mid = (mid + Math.imul(ah5, bl1)) | 0; + hi = (hi + Math.imul(ah5, bh1)) | 0; + lo = (lo + Math.imul(al4, bl2)) | 0; + mid = (mid + Math.imul(al4, bh2)) | 0; + mid = (mid + Math.imul(ah4, bl2)) | 0; + hi = (hi + Math.imul(ah4, bh2)) | 0; + lo = (lo + Math.imul(al3, bl3)) | 0; + mid = (mid + Math.imul(al3, bh3)) | 0; + mid = (mid + Math.imul(ah3, bl3)) | 0; + hi = (hi + Math.imul(ah3, bh3)) | 0; + lo = (lo + Math.imul(al2, bl4)) | 0; + mid = (mid + Math.imul(al2, bh4)) | 0; + mid = (mid + Math.imul(ah2, bl4)) | 0; + hi = (hi + Math.imul(ah2, bh4)) | 0; + lo = (lo + Math.imul(al1, bl5)) | 0; + mid = (mid + Math.imul(al1, bh5)) | 0; + mid = (mid + Math.imul(ah1, bl5)) | 0; + hi = (hi + Math.imul(ah1, bh5)) | 0; + lo = (lo + Math.imul(al0, bl6)) | 0; + mid = (mid + Math.imul(al0, bh6)) | 0; + mid = (mid + Math.imul(ah0, bl6)) | 0; + hi = (hi + Math.imul(ah0, bh6)) | 0; + var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0; + w6 &= 0x3ffffff; + /* k = 7 */ + lo = Math.imul(al7, bl0); + mid = Math.imul(al7, bh0); + mid = (mid + Math.imul(ah7, bl0)) | 0; + hi = Math.imul(ah7, bh0); + lo = (lo + Math.imul(al6, bl1)) | 0; + mid = (mid + Math.imul(al6, bh1)) | 0; + mid = (mid + Math.imul(ah6, bl1)) | 0; + hi = (hi + Math.imul(ah6, bh1)) | 0; + lo = (lo + Math.imul(al5, bl2)) | 0; + mid = (mid + Math.imul(al5, bh2)) | 0; + mid = (mid + Math.imul(ah5, bl2)) | 0; + hi = (hi + Math.imul(ah5, bh2)) | 0; + lo = (lo + Math.imul(al4, bl3)) | 0; + mid = (mid + Math.imul(al4, bh3)) | 0; + mid = (mid + Math.imul(ah4, bl3)) | 0; + hi = (hi + Math.imul(ah4, bh3)) | 0; + lo = (lo + Math.imul(al3, bl4)) | 0; + mid = (mid + Math.imul(al3, bh4)) | 0; + mid = (mid + Math.imul(ah3, bl4)) | 0; + hi = (hi + Math.imul(ah3, bh4)) | 0; + lo = (lo + Math.imul(al2, bl5)) | 0; + mid = (mid + Math.imul(al2, bh5)) | 0; + mid = (mid + Math.imul(ah2, bl5)) | 0; + hi = (hi + Math.imul(ah2, bh5)) | 0; + lo = (lo + Math.imul(al1, bl6)) | 0; + mid = (mid + Math.imul(al1, bh6)) | 0; + mid = (mid + Math.imul(ah1, bl6)) | 0; + hi = (hi + Math.imul(ah1, bh6)) | 0; + lo = (lo + Math.imul(al0, bl7)) | 0; + mid = (mid + Math.imul(al0, bh7)) | 0; + mid = (mid + Math.imul(ah0, bl7)) | 0; + hi = (hi + Math.imul(ah0, bh7)) | 0; + var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0; + w7 &= 0x3ffffff; + /* k = 8 */ + lo = Math.imul(al8, bl0); + mid = Math.imul(al8, bh0); + mid = (mid + Math.imul(ah8, bl0)) | 0; + hi = Math.imul(ah8, bh0); + lo = (lo + Math.imul(al7, bl1)) | 0; + mid = (mid + Math.imul(al7, bh1)) | 0; + mid = (mid + Math.imul(ah7, bl1)) | 0; + hi = (hi + Math.imul(ah7, bh1)) | 0; + lo = (lo + Math.imul(al6, bl2)) | 0; + mid = (mid + Math.imul(al6, bh2)) | 0; + mid = (mid + Math.imul(ah6, bl2)) | 0; + hi = (hi + Math.imul(ah6, bh2)) | 0; + lo = (lo + Math.imul(al5, bl3)) | 0; + mid = (mid + Math.imul(al5, bh3)) | 0; + mid = (mid + Math.imul(ah5, bl3)) | 0; + hi = (hi + Math.imul(ah5, bh3)) | 0; + lo = (lo + Math.imul(al4, bl4)) | 0; + mid = (mid + Math.imul(al4, bh4)) | 0; + mid = (mid + Math.imul(ah4, bl4)) | 0; + hi = (hi + Math.imul(ah4, bh4)) | 0; + lo = (lo + Math.imul(al3, bl5)) | 0; + mid = (mid + Math.imul(al3, bh5)) | 0; + mid = (mid + Math.imul(ah3, bl5)) | 0; + hi = (hi + Math.imul(ah3, bh5)) | 0; + lo = (lo + Math.imul(al2, bl6)) | 0; + mid = (mid + Math.imul(al2, bh6)) | 0; + mid = (mid + Math.imul(ah2, bl6)) | 0; + hi = (hi + Math.imul(ah2, bh6)) | 0; + lo = (lo + Math.imul(al1, bl7)) | 0; + mid = (mid + Math.imul(al1, bh7)) | 0; + mid = (mid + Math.imul(ah1, bl7)) | 0; + hi = (hi + Math.imul(ah1, bh7)) | 0; + lo = (lo + Math.imul(al0, bl8)) | 0; + mid = (mid + Math.imul(al0, bh8)) | 0; + mid = (mid + Math.imul(ah0, bl8)) | 0; + hi = (hi + Math.imul(ah0, bh8)) | 0; + var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0; + w8 &= 0x3ffffff; + /* k = 9 */ + lo = Math.imul(al9, bl0); + mid = Math.imul(al9, bh0); + mid = (mid + Math.imul(ah9, bl0)) | 0; + hi = Math.imul(ah9, bh0); + lo = (lo + Math.imul(al8, bl1)) | 0; + mid = (mid + Math.imul(al8, bh1)) | 0; + mid = (mid + Math.imul(ah8, bl1)) | 0; + hi = (hi + Math.imul(ah8, bh1)) | 0; + lo = (lo + Math.imul(al7, bl2)) | 0; + mid = (mid + Math.imul(al7, bh2)) | 0; + mid = (mid + Math.imul(ah7, bl2)) | 0; + hi = (hi + Math.imul(ah7, bh2)) | 0; + lo = (lo + Math.imul(al6, bl3)) | 0; + mid = (mid + Math.imul(al6, bh3)) | 0; + mid = (mid + Math.imul(ah6, bl3)) | 0; + hi = (hi + Math.imul(ah6, bh3)) | 0; + lo = (lo + Math.imul(al5, bl4)) | 0; + mid = (mid + Math.imul(al5, bh4)) | 0; + mid = (mid + Math.imul(ah5, bl4)) | 0; + hi = (hi + Math.imul(ah5, bh4)) | 0; + lo = (lo + Math.imul(al4, bl5)) | 0; + mid = (mid + Math.imul(al4, bh5)) | 0; + mid = (mid + Math.imul(ah4, bl5)) | 0; + hi = (hi + Math.imul(ah4, bh5)) | 0; + lo = (lo + Math.imul(al3, bl6)) | 0; + mid = (mid + Math.imul(al3, bh6)) | 0; + mid = (mid + Math.imul(ah3, bl6)) | 0; + hi = (hi + Math.imul(ah3, bh6)) | 0; + lo = (lo + Math.imul(al2, bl7)) | 0; + mid = (mid + Math.imul(al2, bh7)) | 0; + mid = (mid + Math.imul(ah2, bl7)) | 0; + hi = (hi + Math.imul(ah2, bh7)) | 0; + lo = (lo + Math.imul(al1, bl8)) | 0; + mid = (mid + Math.imul(al1, bh8)) | 0; + mid = (mid + Math.imul(ah1, bl8)) | 0; + hi = (hi + Math.imul(ah1, bh8)) | 0; + lo = (lo + Math.imul(al0, bl9)) | 0; + mid = (mid + Math.imul(al0, bh9)) | 0; + mid = (mid + Math.imul(ah0, bl9)) | 0; + hi = (hi + Math.imul(ah0, bh9)) | 0; + var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0; + w9 &= 0x3ffffff; + /* k = 10 */ + lo = Math.imul(al9, bl1); + mid = Math.imul(al9, bh1); + mid = (mid + Math.imul(ah9, bl1)) | 0; + hi = Math.imul(ah9, bh1); + lo = (lo + Math.imul(al8, bl2)) | 0; + mid = (mid + Math.imul(al8, bh2)) | 0; + mid = (mid + Math.imul(ah8, bl2)) | 0; + hi = (hi + Math.imul(ah8, bh2)) | 0; + lo = (lo + Math.imul(al7, bl3)) | 0; + mid = (mid + Math.imul(al7, bh3)) | 0; + mid = (mid + Math.imul(ah7, bl3)) | 0; + hi = (hi + Math.imul(ah7, bh3)) | 0; + lo = (lo + Math.imul(al6, bl4)) | 0; + mid = (mid + Math.imul(al6, bh4)) | 0; + mid = (mid + Math.imul(ah6, bl4)) | 0; + hi = (hi + Math.imul(ah6, bh4)) | 0; + lo = (lo + Math.imul(al5, bl5)) | 0; + mid = (mid + Math.imul(al5, bh5)) | 0; + mid = (mid + Math.imul(ah5, bl5)) | 0; + hi = (hi + Math.imul(ah5, bh5)) | 0; + lo = (lo + Math.imul(al4, bl6)) | 0; + mid = (mid + Math.imul(al4, bh6)) | 0; + mid = (mid + Math.imul(ah4, bl6)) | 0; + hi = (hi + Math.imul(ah4, bh6)) | 0; + lo = (lo + Math.imul(al3, bl7)) | 0; + mid = (mid + Math.imul(al3, bh7)) | 0; + mid = (mid + Math.imul(ah3, bl7)) | 0; + hi = (hi + Math.imul(ah3, bh7)) | 0; + lo = (lo + Math.imul(al2, bl8)) | 0; + mid = (mid + Math.imul(al2, bh8)) | 0; + mid = (mid + Math.imul(ah2, bl8)) | 0; + hi = (hi + Math.imul(ah2, bh8)) | 0; + lo = (lo + Math.imul(al1, bl9)) | 0; + mid = (mid + Math.imul(al1, bh9)) | 0; + mid = (mid + Math.imul(ah1, bl9)) | 0; + hi = (hi + Math.imul(ah1, bh9)) | 0; + var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0; + w10 &= 0x3ffffff; + /* k = 11 */ + lo = Math.imul(al9, bl2); + mid = Math.imul(al9, bh2); + mid = (mid + Math.imul(ah9, bl2)) | 0; + hi = Math.imul(ah9, bh2); + lo = (lo + Math.imul(al8, bl3)) | 0; + mid = (mid + Math.imul(al8, bh3)) | 0; + mid = (mid + Math.imul(ah8, bl3)) | 0; + hi = (hi + Math.imul(ah8, bh3)) | 0; + lo = (lo + Math.imul(al7, bl4)) | 0; + mid = (mid + Math.imul(al7, bh4)) | 0; + mid = (mid + Math.imul(ah7, bl4)) | 0; + hi = (hi + Math.imul(ah7, bh4)) | 0; + lo = (lo + Math.imul(al6, bl5)) | 0; + mid = (mid + Math.imul(al6, bh5)) | 0; + mid = (mid + Math.imul(ah6, bl5)) | 0; + hi = (hi + Math.imul(ah6, bh5)) | 0; + lo = (lo + Math.imul(al5, bl6)) | 0; + mid = (mid + Math.imul(al5, bh6)) | 0; + mid = (mid + Math.imul(ah5, bl6)) | 0; + hi = (hi + Math.imul(ah5, bh6)) | 0; + lo = (lo + Math.imul(al4, bl7)) | 0; + mid = (mid + Math.imul(al4, bh7)) | 0; + mid = (mid + Math.imul(ah4, bl7)) | 0; + hi = (hi + Math.imul(ah4, bh7)) | 0; + lo = (lo + Math.imul(al3, bl8)) | 0; + mid = (mid + Math.imul(al3, bh8)) | 0; + mid = (mid + Math.imul(ah3, bl8)) | 0; + hi = (hi + Math.imul(ah3, bh8)) | 0; + lo = (lo + Math.imul(al2, bl9)) | 0; + mid = (mid + Math.imul(al2, bh9)) | 0; + mid = (mid + Math.imul(ah2, bl9)) | 0; + hi = (hi + Math.imul(ah2, bh9)) | 0; + var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0; + w11 &= 0x3ffffff; + /* k = 12 */ + lo = Math.imul(al9, bl3); + mid = Math.imul(al9, bh3); + mid = (mid + Math.imul(ah9, bl3)) | 0; + hi = Math.imul(ah9, bh3); + lo = (lo + Math.imul(al8, bl4)) | 0; + mid = (mid + Math.imul(al8, bh4)) | 0; + mid = (mid + Math.imul(ah8, bl4)) | 0; + hi = (hi + Math.imul(ah8, bh4)) | 0; + lo = (lo + Math.imul(al7, bl5)) | 0; + mid = (mid + Math.imul(al7, bh5)) | 0; + mid = (mid + Math.imul(ah7, bl5)) | 0; + hi = (hi + Math.imul(ah7, bh5)) | 0; + lo = (lo + Math.imul(al6, bl6)) | 0; + mid = (mid + Math.imul(al6, bh6)) | 0; + mid = (mid + Math.imul(ah6, bl6)) | 0; + hi = (hi + Math.imul(ah6, bh6)) | 0; + lo = (lo + Math.imul(al5, bl7)) | 0; + mid = (mid + Math.imul(al5, bh7)) | 0; + mid = (mid + Math.imul(ah5, bl7)) | 0; + hi = (hi + Math.imul(ah5, bh7)) | 0; + lo = (lo + Math.imul(al4, bl8)) | 0; + mid = (mid + Math.imul(al4, bh8)) | 0; + mid = (mid + Math.imul(ah4, bl8)) | 0; + hi = (hi + Math.imul(ah4, bh8)) | 0; + lo = (lo + Math.imul(al3, bl9)) | 0; + mid = (mid + Math.imul(al3, bh9)) | 0; + mid = (mid + Math.imul(ah3, bl9)) | 0; + hi = (hi + Math.imul(ah3, bh9)) | 0; + var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0; + w12 &= 0x3ffffff; + /* k = 13 */ + lo = Math.imul(al9, bl4); + mid = Math.imul(al9, bh4); + mid = (mid + Math.imul(ah9, bl4)) | 0; + hi = Math.imul(ah9, bh4); + lo = (lo + Math.imul(al8, bl5)) | 0; + mid = (mid + Math.imul(al8, bh5)) | 0; + mid = (mid + Math.imul(ah8, bl5)) | 0; + hi = (hi + Math.imul(ah8, bh5)) | 0; + lo = (lo + Math.imul(al7, bl6)) | 0; + mid = (mid + Math.imul(al7, bh6)) | 0; + mid = (mid + Math.imul(ah7, bl6)) | 0; + hi = (hi + Math.imul(ah7, bh6)) | 0; + lo = (lo + Math.imul(al6, bl7)) | 0; + mid = (mid + Math.imul(al6, bh7)) | 0; + mid = (mid + Math.imul(ah6, bl7)) | 0; + hi = (hi + Math.imul(ah6, bh7)) | 0; + lo = (lo + Math.imul(al5, bl8)) | 0; + mid = (mid + Math.imul(al5, bh8)) | 0; + mid = (mid + Math.imul(ah5, bl8)) | 0; + hi = (hi + Math.imul(ah5, bh8)) | 0; + lo = (lo + Math.imul(al4, bl9)) | 0; + mid = (mid + Math.imul(al4, bh9)) | 0; + mid = (mid + Math.imul(ah4, bl9)) | 0; + hi = (hi + Math.imul(ah4, bh9)) | 0; + var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0; + w13 &= 0x3ffffff; + /* k = 14 */ + lo = Math.imul(al9, bl5); + mid = Math.imul(al9, bh5); + mid = (mid + Math.imul(ah9, bl5)) | 0; + hi = Math.imul(ah9, bh5); + lo = (lo + Math.imul(al8, bl6)) | 0; + mid = (mid + Math.imul(al8, bh6)) | 0; + mid = (mid + Math.imul(ah8, bl6)) | 0; + hi = (hi + Math.imul(ah8, bh6)) | 0; + lo = (lo + Math.imul(al7, bl7)) | 0; + mid = (mid + Math.imul(al7, bh7)) | 0; + mid = (mid + Math.imul(ah7, bl7)) | 0; + hi = (hi + Math.imul(ah7, bh7)) | 0; + lo = (lo + Math.imul(al6, bl8)) | 0; + mid = (mid + Math.imul(al6, bh8)) | 0; + mid = (mid + Math.imul(ah6, bl8)) | 0; + hi = (hi + Math.imul(ah6, bh8)) | 0; + lo = (lo + Math.imul(al5, bl9)) | 0; + mid = (mid + Math.imul(al5, bh9)) | 0; + mid = (mid + Math.imul(ah5, bl9)) | 0; + hi = (hi + Math.imul(ah5, bh9)) | 0; + var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0; + w14 &= 0x3ffffff; + /* k = 15 */ + lo = Math.imul(al9, bl6); + mid = Math.imul(al9, bh6); + mid = (mid + Math.imul(ah9, bl6)) | 0; + hi = Math.imul(ah9, bh6); + lo = (lo + Math.imul(al8, bl7)) | 0; + mid = (mid + Math.imul(al8, bh7)) | 0; + mid = (mid + Math.imul(ah8, bl7)) | 0; + hi = (hi + Math.imul(ah8, bh7)) | 0; + lo = (lo + Math.imul(al7, bl8)) | 0; + mid = (mid + Math.imul(al7, bh8)) | 0; + mid = (mid + Math.imul(ah7, bl8)) | 0; + hi = (hi + Math.imul(ah7, bh8)) | 0; + lo = (lo + Math.imul(al6, bl9)) | 0; + mid = (mid + Math.imul(al6, bh9)) | 0; + mid = (mid + Math.imul(ah6, bl9)) | 0; + hi = (hi + Math.imul(ah6, bh9)) | 0; + var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0; + w15 &= 0x3ffffff; + /* k = 16 */ + lo = Math.imul(al9, bl7); + mid = Math.imul(al9, bh7); + mid = (mid + Math.imul(ah9, bl7)) | 0; + hi = Math.imul(ah9, bh7); + lo = (lo + Math.imul(al8, bl8)) | 0; + mid = (mid + Math.imul(al8, bh8)) | 0; + mid = (mid + Math.imul(ah8, bl8)) | 0; + hi = (hi + Math.imul(ah8, bh8)) | 0; + lo = (lo + Math.imul(al7, bl9)) | 0; + mid = (mid + Math.imul(al7, bh9)) | 0; + mid = (mid + Math.imul(ah7, bl9)) | 0; + hi = (hi + Math.imul(ah7, bh9)) | 0; + var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0; + w16 &= 0x3ffffff; + /* k = 17 */ + lo = Math.imul(al9, bl8); + mid = Math.imul(al9, bh8); + mid = (mid + Math.imul(ah9, bl8)) | 0; + hi = Math.imul(ah9, bh8); + lo = (lo + Math.imul(al8, bl9)) | 0; + mid = (mid + Math.imul(al8, bh9)) | 0; + mid = (mid + Math.imul(ah8, bl9)) | 0; + hi = (hi + Math.imul(ah8, bh9)) | 0; + var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0; + w17 &= 0x3ffffff; + /* k = 18 */ + lo = Math.imul(al9, bl9); + mid = Math.imul(al9, bh9); + mid = (mid + Math.imul(ah9, bl9)) | 0; + hi = Math.imul(ah9, bh9); + var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0; + w18 &= 0x3ffffff; + o[0] = w0; + o[1] = w1; + o[2] = w2; + o[3] = w3; + o[4] = w4; + o[5] = w5; + o[6] = w6; + o[7] = w7; + o[8] = w8; + o[9] = w9; + o[10] = w10; + o[11] = w11; + o[12] = w12; + o[13] = w13; + o[14] = w14; + o[15] = w15; + o[16] = w16; + o[17] = w17; + o[18] = w18; + if (c !== 0) { + o[19] = c; + out.length++; + } + return out; + }; + + // Polyfill comb + if (!Math.imul) { + comb10MulTo = smallMulTo; + } + + function bigMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + out.length = self.length + num.length; + + var carry = 0; + var hncarry = 0; + for (var k = 0; k < out.length - 1; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = hncarry; + hncarry = 0; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = k - j; + var a = self.words[i] | 0; + var b = num.words[j] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0; + lo = (lo + rword) | 0; + rword = lo & 0x3ffffff; + ncarry = (ncarry + (lo >>> 26)) | 0; + + hncarry += ncarry >>> 26; + ncarry &= 0x3ffffff; + } + out.words[k] = rword; + carry = ncarry; + ncarry = hncarry; + } + if (carry !== 0) { + out.words[k] = carry; + } else { + out.length--; + } + + return out.strip(); + } + + function jumboMulTo (self, num, out) { + var fftm = new FFTM(); + return fftm.mulp(self, num, out); + } + + BN.prototype.mulTo = function mulTo (num, out) { + var res; + var len = this.length + num.length; + if (this.length === 10 && num.length === 10) { + res = comb10MulTo(this, num, out); + } else if (len < 63) { + res = smallMulTo(this, num, out); + } else if (len < 1024) { + res = bigMulTo(this, num, out); + } else { + res = jumboMulTo(this, num, out); + } + + return res; + }; + + // Cooley-Tukey algorithm for FFT + // slightly revisited to rely on looping instead of recursion + + function FFTM (x, y) { + this.x = x; + this.y = y; + } + + FFTM.prototype.makeRBT = function makeRBT (N) { + var t = new Array(N); + var l = BN.prototype._countBits(N) - 1; + for (var i = 0; i < N; i++) { + t[i] = this.revBin(i, l, N); + } + + return t; + }; + + // Returns binary-reversed representation of `x` + FFTM.prototype.revBin = function revBin (x, l, N) { + if (x === 0 || x === N - 1) return x; + + var rb = 0; + for (var i = 0; i < l; i++) { + rb |= (x & 1) << (l - i - 1); + x >>= 1; + } + + return rb; + }; + + // Performs "tweedling" phase, therefore 'emulating' + // behaviour of the recursive algorithm + FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) { + for (var i = 0; i < N; i++) { + rtws[i] = rws[rbt[i]]; + itws[i] = iws[rbt[i]]; + } + }; + + FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) { + this.permute(rbt, rws, iws, rtws, itws, N); + + for (var s = 1; s < N; s <<= 1) { + var l = s << 1; + + var rtwdf = Math.cos(2 * Math.PI / l); + var itwdf = Math.sin(2 * Math.PI / l); + + for (var p = 0; p < N; p += l) { + var rtwdf_ = rtwdf; + var itwdf_ = itwdf; + + for (var j = 0; j < s; j++) { + var re = rtws[p + j]; + var ie = itws[p + j]; + + var ro = rtws[p + j + s]; + var io = itws[p + j + s]; + + var rx = rtwdf_ * ro - itwdf_ * io; + + io = rtwdf_ * io + itwdf_ * ro; + ro = rx; + + rtws[p + j] = re + ro; + itws[p + j] = ie + io; + + rtws[p + j + s] = re - ro; + itws[p + j + s] = ie - io; + + /* jshint maxdepth : false */ + if (j !== l) { + rx = rtwdf * rtwdf_ - itwdf * itwdf_; + + itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_; + rtwdf_ = rx; + } + } + } + } + }; + + FFTM.prototype.guessLen13b = function guessLen13b (n, m) { + var N = Math.max(m, n) | 1; + var odd = N & 1; + var i = 0; + for (N = N / 2 | 0; N; N = N >>> 1) { + i++; + } + + return 1 << i + 1 + odd; + }; + + FFTM.prototype.conjugate = function conjugate (rws, iws, N) { + if (N <= 1) return; + + for (var i = 0; i < N / 2; i++) { + var t = rws[i]; + + rws[i] = rws[N - i - 1]; + rws[N - i - 1] = t; + + t = iws[i]; + + iws[i] = -iws[N - i - 1]; + iws[N - i - 1] = -t; + } + }; + + FFTM.prototype.normalize13b = function normalize13b (ws, N) { + var carry = 0; + for (var i = 0; i < N / 2; i++) { + var w = Math.round(ws[2 * i + 1] / N) * 0x2000 + + Math.round(ws[2 * i] / N) + + carry; + + ws[i] = w & 0x3ffffff; + + if (w < 0x4000000) { + carry = 0; + } else { + carry = w / 0x4000000 | 0; + } + } + + return ws; + }; + + FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) { + var carry = 0; + for (var i = 0; i < len; i++) { + carry = carry + (ws[i] | 0); + + rws[2 * i] = carry & 0x1fff; carry = carry >>> 13; + rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13; + } + + // Pad with zeroes + for (i = 2 * len; i < N; ++i) { + rws[i] = 0; + } + + assert(carry === 0); + assert((carry & ~0x1fff) === 0); + }; + + FFTM.prototype.stub = function stub (N) { + var ph = new Array(N); + for (var i = 0; i < N; i++) { + ph[i] = 0; + } + + return ph; + }; + + FFTM.prototype.mulp = function mulp (x, y, out) { + var N = 2 * this.guessLen13b(x.length, y.length); + + var rbt = this.makeRBT(N); + + var _ = this.stub(N); + + var rws = new Array(N); + var rwst = new Array(N); + var iwst = new Array(N); + + var nrws = new Array(N); + var nrwst = new Array(N); + var niwst = new Array(N); + + var rmws = out.words; + rmws.length = N; + + this.convert13b(x.words, x.length, rws, N); + this.convert13b(y.words, y.length, nrws, N); + + this.transform(rws, _, rwst, iwst, N, rbt); + this.transform(nrws, _, nrwst, niwst, N, rbt); + + for (var i = 0; i < N; i++) { + var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i]; + iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i]; + rwst[i] = rx; + } + + this.conjugate(rwst, iwst, N); + this.transform(rwst, iwst, rmws, _, N, rbt); + this.conjugate(rmws, _, N); + this.normalize13b(rmws, N); + + out.negative = x.negative ^ y.negative; + out.length = x.length + y.length; + return out.strip(); + }; + + // Multiply `this` by `num` + BN.prototype.mul = function mul (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return this.mulTo(num, out); + }; + + // Multiply employing FFT + BN.prototype.mulf = function mulf (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return jumboMulTo(this, num, out); + }; + + // In-place Multiplication + BN.prototype.imul = function imul (num) { + return this.clone().mulTo(num, this); + }; + + BN.prototype.imuln = function imuln (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + + // Carry + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = (this.words[i] | 0) * num; + var lo = (w & 0x3ffffff) + (carry & 0x3ffffff); + carry >>= 26; + carry += (w / 0x4000000) | 0; + // NOTE: lo is 27bit maximum + carry += lo >>> 26; + this.words[i] = lo & 0x3ffffff; + } + + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + + return this; + }; + + BN.prototype.muln = function muln (num) { + return this.clone().imuln(num); + }; + + // `this` * `this` + BN.prototype.sqr = function sqr () { + return this.mul(this); + }; + + // `this` * `this` in-place + BN.prototype.isqr = function isqr () { + return this.imul(this.clone()); + }; + + // Math.pow(`this`, `num`) + BN.prototype.pow = function pow (num) { + var w = toBitArray(num); + if (w.length === 0) return new BN(1); + + // Skip leading zeroes + var res = this; + for (var i = 0; i < w.length; i++, res = res.sqr()) { + if (w[i] !== 0) break; + } + + if (++i < w.length) { + for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) { + if (w[i] === 0) continue; + + res = res.mul(q); + } + } + + return res; + }; + + // Shift-left in-place + BN.prototype.iushln = function iushln (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r); + var i; + + if (r !== 0) { + var carry = 0; + + for (i = 0; i < this.length; i++) { + var newCarry = this.words[i] & carryMask; + var c = ((this.words[i] | 0) - newCarry) << r; + this.words[i] = c | carry; + carry = newCarry >>> (26 - r); + } + + if (carry) { + this.words[i] = carry; + this.length++; + } + } + + if (s !== 0) { + for (i = this.length - 1; i >= 0; i--) { + this.words[i + s] = this.words[i]; + } + + for (i = 0; i < s; i++) { + this.words[i] = 0; + } + + this.length += s; + } + + return this.strip(); + }; + + BN.prototype.ishln = function ishln (bits) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushln(bits); + }; + + // Shift-right in-place + // NOTE: `hint` is a lowest bit before trailing zeroes + // NOTE: if `extended` is present - it will be filled with destroyed bits + BN.prototype.iushrn = function iushrn (bits, hint, extended) { + assert(typeof bits === 'number' && bits >= 0); + var h; + if (hint) { + h = (hint - (hint % 26)) / 26; + } else { + h = 0; + } + + var r = bits % 26; + var s = Math.min((bits - r) / 26, this.length); + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + var maskedWords = extended; + + h -= s; + h = Math.max(0, h); + + // Extended mode, copy masked part + if (maskedWords) { + for (var i = 0; i < s; i++) { + maskedWords.words[i] = this.words[i]; + } + maskedWords.length = s; + } + + if (s === 0) { + // No-op, we should not move anything at all + } else if (this.length > s) { + this.length -= s; + for (i = 0; i < this.length; i++) { + this.words[i] = this.words[i + s]; + } + } else { + this.words[0] = 0; + this.length = 1; + } + + var carry = 0; + for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) { + var word = this.words[i] | 0; + this.words[i] = (carry << (26 - r)) | (word >>> r); + carry = word & mask; + } + + // Push carried bits as a mask + if (maskedWords && carry !== 0) { + maskedWords.words[maskedWords.length++] = carry; + } + + if (this.length === 0) { + this.words[0] = 0; + this.length = 1; + } + + return this.strip(); + }; + + BN.prototype.ishrn = function ishrn (bits, hint, extended) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushrn(bits, hint, extended); + }; + + // Shift-left + BN.prototype.shln = function shln (bits) { + return this.clone().ishln(bits); + }; + + BN.prototype.ushln = function ushln (bits) { + return this.clone().iushln(bits); + }; + + // Shift-right + BN.prototype.shrn = function shrn (bits) { + return this.clone().ishrn(bits); + }; + + BN.prototype.ushrn = function ushrn (bits) { + return this.clone().iushrn(bits); + }; + + // Test if n bit is set + BN.prototype.testn = function testn (bit) { + assert(typeof bit === 'number' && bit >= 0); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) return false; + + // Check bit and return + var w = this.words[s]; + + return !!(w & q); + }; + + // Return only lowers bits of number (in-place) + BN.prototype.imaskn = function imaskn (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + + assert(this.negative === 0, 'imaskn works only with positive numbers'); + + if (this.length <= s) { + return this; + } + + if (r !== 0) { + s++; + } + this.length = Math.min(s, this.length); + + if (r !== 0) { + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + this.words[this.length - 1] &= mask; + } + + return this.strip(); + }; + + // Return only lowers bits of number + BN.prototype.maskn = function maskn (bits) { + return this.clone().imaskn(bits); + }; + + // Add plain number `num` to `this` + BN.prototype.iaddn = function iaddn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.isubn(-num); + + // Possible sign change + if (this.negative !== 0) { + if (this.length === 1 && (this.words[0] | 0) < num) { + this.words[0] = num - (this.words[0] | 0); + this.negative = 0; + return this; + } + + this.negative = 0; + this.isubn(num); + this.negative = 1; + return this; + } + + // Add without checks + return this._iaddn(num); + }; + + BN.prototype._iaddn = function _iaddn (num) { + this.words[0] += num; + + // Carry + for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) { + this.words[i] -= 0x4000000; + if (i === this.length - 1) { + this.words[i + 1] = 1; + } else { + this.words[i + 1]++; + } + } + this.length = Math.max(this.length, i + 1); + + return this; + }; + + // Subtract plain number `num` from `this` + BN.prototype.isubn = function isubn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.iaddn(-num); + + if (this.negative !== 0) { + this.negative = 0; + this.iaddn(num); + this.negative = 1; + return this; + } + + this.words[0] -= num; + + if (this.length === 1 && this.words[0] < 0) { + this.words[0] = -this.words[0]; + this.negative = 1; + } else { + // Carry + for (var i = 0; i < this.length && this.words[i] < 0; i++) { + this.words[i] += 0x4000000; + this.words[i + 1] -= 1; + } + } + + return this.strip(); + }; + + BN.prototype.addn = function addn (num) { + return this.clone().iaddn(num); + }; + + BN.prototype.subn = function subn (num) { + return this.clone().isubn(num); + }; + + BN.prototype.iabs = function iabs () { + this.negative = 0; + + return this; + }; + + BN.prototype.abs = function abs () { + return this.clone().iabs(); + }; + + BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) { + var len = num.length + shift; + var i; + + this._expand(len); + + var w; + var carry = 0; + for (i = 0; i < num.length; i++) { + w = (this.words[i + shift] | 0) + carry; + var right = (num.words[i] | 0) * mul; + w -= right & 0x3ffffff; + carry = (w >> 26) - ((right / 0x4000000) | 0); + this.words[i + shift] = w & 0x3ffffff; + } + for (; i < this.length - shift; i++) { + w = (this.words[i + shift] | 0) + carry; + carry = w >> 26; + this.words[i + shift] = w & 0x3ffffff; + } + + if (carry === 0) return this.strip(); + + // Subtraction overflow + assert(carry === -1); + carry = 0; + for (i = 0; i < this.length; i++) { + w = -(this.words[i] | 0) + carry; + carry = w >> 26; + this.words[i] = w & 0x3ffffff; + } + this.negative = 1; + + return this.strip(); + }; + + BN.prototype._wordDiv = function _wordDiv (num, mode) { + var shift = this.length - num.length; + + var a = this.clone(); + var b = num; + + // Normalize + var bhi = b.words[b.length - 1] | 0; + var bhiBits = this._countBits(bhi); + shift = 26 - bhiBits; + if (shift !== 0) { + b = b.ushln(shift); + a.iushln(shift); + bhi = b.words[b.length - 1] | 0; + } + + // Initialize quotient + var m = a.length - b.length; + var q; + + if (mode !== 'mod') { + q = new BN(null); + q.length = m + 1; + q.words = new Array(q.length); + for (var i = 0; i < q.length; i++) { + q.words[i] = 0; + } + } + + var diff = a.clone()._ishlnsubmul(b, 1, m); + if (diff.negative === 0) { + a = diff; + if (q) { + q.words[m] = 1; + } + } + + for (var j = m - 1; j >= 0; j--) { + var qj = (a.words[b.length + j] | 0) * 0x4000000 + + (a.words[b.length + j - 1] | 0); + + // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max + // (0x7ffffff) + qj = Math.min((qj / bhi) | 0, 0x3ffffff); + + a._ishlnsubmul(b, qj, j); + while (a.negative !== 0) { + qj--; + a.negative = 0; + a._ishlnsubmul(b, 1, j); + if (!a.isZero()) { + a.negative ^= 1; + } + } + if (q) { + q.words[j] = qj; + } + } + if (q) { + q.strip(); + } + a.strip(); + + // Denormalize + if (mode !== 'div' && shift !== 0) { + a.iushrn(shift); + } + + return { + div: q || null, + mod: a + }; + }; + + // NOTE: 1) `mode` can be set to `mod` to request mod only, + // to `div` to request div only, or be absent to + // request both div & mod + // 2) `positive` is true if unsigned mod is requested + BN.prototype.divmod = function divmod (num, mode, positive) { + assert(!num.isZero()); + + if (this.isZero()) { + return { + div: new BN(0), + mod: new BN(0) + }; + } + + var div, mod, res; + if (this.negative !== 0 && num.negative === 0) { + res = this.neg().divmod(num, mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.iadd(num); + } + } + + return { + div: div, + mod: mod + }; + } + + if (this.negative === 0 && num.negative !== 0) { + res = this.divmod(num.neg(), mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + return { + div: div, + mod: res.mod + }; + } + + if ((this.negative & num.negative) !== 0) { + res = this.neg().divmod(num.neg(), mode); + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.isub(num); + } + } + + return { + div: res.div, + mod: mod + }; + } + + // Both numbers are positive at this point + + // Strip both numbers to approximate shift value + if (num.length > this.length || this.cmp(num) < 0) { + return { + div: new BN(0), + mod: this + }; + } + + // Very short reduction + if (num.length === 1) { + if (mode === 'div') { + return { + div: this.divn(num.words[0]), + mod: null + }; + } + + if (mode === 'mod') { + return { + div: null, + mod: new BN(this.modn(num.words[0])) + }; + } + + return { + div: this.divn(num.words[0]), + mod: new BN(this.modn(num.words[0])) + }; + } + + return this._wordDiv(num, mode); + }; + + // Find `this` / `num` + BN.prototype.div = function div (num) { + return this.divmod(num, 'div', false).div; + }; + + // Find `this` % `num` + BN.prototype.mod = function mod (num) { + return this.divmod(num, 'mod', false).mod; + }; + + BN.prototype.umod = function umod (num) { + return this.divmod(num, 'mod', true).mod; + }; + + // Find Round(`this` / `num`) + BN.prototype.divRound = function divRound (num) { + var dm = this.divmod(num); + + // Fast case - exact division + if (dm.mod.isZero()) return dm.div; + + var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod; + + var half = num.ushrn(1); + var r2 = num.andln(1); + var cmp = mod.cmp(half); + + // Round down + if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div; + + // Round up + return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1); + }; + + BN.prototype.modn = function modn (num) { + assert(num <= 0x3ffffff); + var p = (1 << 26) % num; + + var acc = 0; + for (var i = this.length - 1; i >= 0; i--) { + acc = (p * acc + (this.words[i] | 0)) % num; + } + + return acc; + }; + + // In-place division by number + BN.prototype.idivn = function idivn (num) { + assert(num <= 0x3ffffff); + + var carry = 0; + for (var i = this.length - 1; i >= 0; i--) { + var w = (this.words[i] | 0) + carry * 0x4000000; + this.words[i] = (w / num) | 0; + carry = w % num; + } + + return this.strip(); + }; + + BN.prototype.divn = function divn (num) { + return this.clone().idivn(num); + }; + + BN.prototype.egcd = function egcd (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var x = this; + var y = p.clone(); + + if (x.negative !== 0) { + x = x.umod(p); + } else { + x = x.clone(); + } + + // A * x + B * y = x + var A = new BN(1); + var B = new BN(0); + + // C * x + D * y = y + var C = new BN(0); + var D = new BN(1); + + var g = 0; + + while (x.isEven() && y.isEven()) { + x.iushrn(1); + y.iushrn(1); + ++g; + } + + var yp = y.clone(); + var xp = x.clone(); + + while (!x.isZero()) { + for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + x.iushrn(i); + while (i-- > 0) { + if (A.isOdd() || B.isOdd()) { + A.iadd(yp); + B.isub(xp); + } + + A.iushrn(1); + B.iushrn(1); + } + } + + for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + y.iushrn(j); + while (j-- > 0) { + if (C.isOdd() || D.isOdd()) { + C.iadd(yp); + D.isub(xp); + } + + C.iushrn(1); + D.iushrn(1); + } + } + + if (x.cmp(y) >= 0) { + x.isub(y); + A.isub(C); + B.isub(D); + } else { + y.isub(x); + C.isub(A); + D.isub(B); + } + } + + return { + a: C, + b: D, + gcd: y.iushln(g) + }; + }; + + // This is reduced incarnation of the binary EEA + // above, designated to invert members of the + // _prime_ fields F(p) at a maximal speed + BN.prototype._invmp = function _invmp (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var a = this; + var b = p.clone(); + + if (a.negative !== 0) { + a = a.umod(p); + } else { + a = a.clone(); + } + + var x1 = new BN(1); + var x2 = new BN(0); + + var delta = b.clone(); + + while (a.cmpn(1) > 0 && b.cmpn(1) > 0) { + for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + a.iushrn(i); + while (i-- > 0) { + if (x1.isOdd()) { + x1.iadd(delta); + } + + x1.iushrn(1); + } + } + + for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + b.iushrn(j); + while (j-- > 0) { + if (x2.isOdd()) { + x2.iadd(delta); + } + + x2.iushrn(1); + } + } + + if (a.cmp(b) >= 0) { + a.isub(b); + x1.isub(x2); + } else { + b.isub(a); + x2.isub(x1); + } + } + + var res; + if (a.cmpn(1) === 0) { + res = x1; + } else { + res = x2; + } + + if (res.cmpn(0) < 0) { + res.iadd(p); + } + + return res; + }; + + BN.prototype.gcd = function gcd (num) { + if (this.isZero()) return num.abs(); + if (num.isZero()) return this.abs(); + + var a = this.clone(); + var b = num.clone(); + a.negative = 0; + b.negative = 0; + + // Remove common factor of two + for (var shift = 0; a.isEven() && b.isEven(); shift++) { + a.iushrn(1); + b.iushrn(1); + } + + do { + while (a.isEven()) { + a.iushrn(1); + } + while (b.isEven()) { + b.iushrn(1); + } + + var r = a.cmp(b); + if (r < 0) { + // Swap `a` and `b` to make `a` always bigger than `b` + var t = a; + a = b; + b = t; + } else if (r === 0 || b.cmpn(1) === 0) { + break; + } + + a.isub(b); + } while (true); + + return b.iushln(shift); + }; + + // Invert number in the field F(num) + BN.prototype.invm = function invm (num) { + return this.egcd(num).a.umod(num); + }; + + BN.prototype.isEven = function isEven () { + return (this.words[0] & 1) === 0; + }; + + BN.prototype.isOdd = function isOdd () { + return (this.words[0] & 1) === 1; + }; + + // And first word and num + BN.prototype.andln = function andln (num) { + return this.words[0] & num; + }; + + // Increment at the bit position in-line + BN.prototype.bincn = function bincn (bit) { + assert(typeof bit === 'number'); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) { + this._expand(s + 1); + this.words[s] |= q; + return this; + } + + // Add bit and propagate, if needed + var carry = q; + for (var i = s; carry !== 0 && i < this.length; i++) { + var w = this.words[i] | 0; + w += carry; + carry = w >>> 26; + w &= 0x3ffffff; + this.words[i] = w; + } + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + return this; + }; + + BN.prototype.isZero = function isZero () { + return this.length === 1 && this.words[0] === 0; + }; + + BN.prototype.cmpn = function cmpn (num) { + var negative = num < 0; + + if (this.negative !== 0 && !negative) return -1; + if (this.negative === 0 && negative) return 1; + + this.strip(); + + var res; + if (this.length > 1) { + res = 1; + } else { + if (negative) { + num = -num; + } + + assert(num <= 0x3ffffff, 'Number is too big'); + + var w = this.words[0] | 0; + res = w === num ? 0 : w < num ? -1 : 1; + } + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Compare two numbers and return: + // 1 - if `this` > `num` + // 0 - if `this` == `num` + // -1 - if `this` < `num` + BN.prototype.cmp = function cmp (num) { + if (this.negative !== 0 && num.negative === 0) return -1; + if (this.negative === 0 && num.negative !== 0) return 1; + + var res = this.ucmp(num); + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Unsigned comparison + BN.prototype.ucmp = function ucmp (num) { + // At this point both numbers have the same sign + if (this.length > num.length) return 1; + if (this.length < num.length) return -1; + + var res = 0; + for (var i = this.length - 1; i >= 0; i--) { + var a = this.words[i] | 0; + var b = num.words[i] | 0; + + if (a === b) continue; + if (a < b) { + res = -1; + } else if (a > b) { + res = 1; + } + break; + } + return res; + }; + + BN.prototype.gtn = function gtn (num) { + return this.cmpn(num) === 1; + }; + + BN.prototype.gt = function gt (num) { + return this.cmp(num) === 1; + }; + + BN.prototype.gten = function gten (num) { + return this.cmpn(num) >= 0; + }; + + BN.prototype.gte = function gte (num) { + return this.cmp(num) >= 0; + }; + + BN.prototype.ltn = function ltn (num) { + return this.cmpn(num) === -1; + }; + + BN.prototype.lt = function lt (num) { + return this.cmp(num) === -1; + }; + + BN.prototype.lten = function lten (num) { + return this.cmpn(num) <= 0; + }; + + BN.prototype.lte = function lte (num) { + return this.cmp(num) <= 0; + }; + + BN.prototype.eqn = function eqn (num) { + return this.cmpn(num) === 0; + }; + + BN.prototype.eq = function eq (num) { + return this.cmp(num) === 0; + }; + + // + // A reduce context, could be using montgomery or something better, depending + // on the `m` itself. + // + BN.red = function red (num) { + return new Red(num); + }; + + BN.prototype.toRed = function toRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + assert(this.negative === 0, 'red works only with positives'); + return ctx.convertTo(this)._forceRed(ctx); + }; + + BN.prototype.fromRed = function fromRed () { + assert(this.red, 'fromRed works only with numbers in reduction context'); + return this.red.convertFrom(this); + }; + + BN.prototype._forceRed = function _forceRed (ctx) { + this.red = ctx; + return this; + }; + + BN.prototype.forceRed = function forceRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + return this._forceRed(ctx); + }; + + BN.prototype.redAdd = function redAdd (num) { + assert(this.red, 'redAdd works only with red numbers'); + return this.red.add(this, num); + }; + + BN.prototype.redIAdd = function redIAdd (num) { + assert(this.red, 'redIAdd works only with red numbers'); + return this.red.iadd(this, num); + }; + + BN.prototype.redSub = function redSub (num) { + assert(this.red, 'redSub works only with red numbers'); + return this.red.sub(this, num); + }; + + BN.prototype.redISub = function redISub (num) { + assert(this.red, 'redISub works only with red numbers'); + return this.red.isub(this, num); + }; + + BN.prototype.redShl = function redShl (num) { + assert(this.red, 'redShl works only with red numbers'); + return this.red.shl(this, num); + }; + + BN.prototype.redMul = function redMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.mul(this, num); + }; + + BN.prototype.redIMul = function redIMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.imul(this, num); + }; + + BN.prototype.redSqr = function redSqr () { + assert(this.red, 'redSqr works only with red numbers'); + this.red._verify1(this); + return this.red.sqr(this); + }; + + BN.prototype.redISqr = function redISqr () { + assert(this.red, 'redISqr works only with red numbers'); + this.red._verify1(this); + return this.red.isqr(this); + }; + + // Square root over p + BN.prototype.redSqrt = function redSqrt () { + assert(this.red, 'redSqrt works only with red numbers'); + this.red._verify1(this); + return this.red.sqrt(this); + }; + + BN.prototype.redInvm = function redInvm () { + assert(this.red, 'redInvm works only with red numbers'); + this.red._verify1(this); + return this.red.invm(this); + }; + + // Return negative clone of `this` % `red modulo` + BN.prototype.redNeg = function redNeg () { + assert(this.red, 'redNeg works only with red numbers'); + this.red._verify1(this); + return this.red.neg(this); + }; + + BN.prototype.redPow = function redPow (num) { + assert(this.red && !num.red, 'redPow(normalNum)'); + this.red._verify1(this); + return this.red.pow(this, num); + }; + + // Prime numbers with efficient reduction + var primes = { + k256: null, + p224: null, + p192: null, + p25519: null + }; + + // Pseudo-Mersenne prime + function MPrime (name, p) { + // P = 2 ^ N - K + this.name = name; + this.p = new BN(p, 16); + this.n = this.p.bitLength(); + this.k = new BN(1).iushln(this.n).isub(this.p); + + this.tmp = this._tmp(); + } + + MPrime.prototype._tmp = function _tmp () { + var tmp = new BN(null); + tmp.words = new Array(Math.ceil(this.n / 13)); + return tmp; + }; + + MPrime.prototype.ireduce = function ireduce (num) { + // Assumes that `num` is less than `P^2` + // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P) + var r = num; + var rlen; + + do { + this.split(r, this.tmp); + r = this.imulK(r); + r = r.iadd(this.tmp); + rlen = r.bitLength(); + } while (rlen > this.n); + + var cmp = rlen < this.n ? -1 : r.ucmp(this.p); + if (cmp === 0) { + r.words[0] = 0; + r.length = 1; + } else if (cmp > 0) { + r.isub(this.p); + } else { + if (r.strip !== undefined) { + // r is BN v4 instance + r.strip(); + } else { + // r is BN v5 instance + r._strip(); + } + } + + return r; + }; + + MPrime.prototype.split = function split (input, out) { + input.iushrn(this.n, 0, out); + }; + + MPrime.prototype.imulK = function imulK (num) { + return num.imul(this.k); + }; + + function K256 () { + MPrime.call( + this, + 'k256', + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f'); + } + inherits(K256, MPrime); + + K256.prototype.split = function split (input, output) { + // 256 = 9 * 26 + 22 + var mask = 0x3fffff; + + var outLen = Math.min(input.length, 9); + for (var i = 0; i < outLen; i++) { + output.words[i] = input.words[i]; + } + output.length = outLen; + + if (input.length <= 9) { + input.words[0] = 0; + input.length = 1; + return; + } + + // Shift by 9 limbs + var prev = input.words[9]; + output.words[output.length++] = prev & mask; + + for (i = 10; i < input.length; i++) { + var next = input.words[i] | 0; + input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22); + prev = next; + } + prev >>>= 22; + input.words[i - 10] = prev; + if (prev === 0 && input.length > 10) { + input.length -= 10; + } else { + input.length -= 9; + } + }; + + K256.prototype.imulK = function imulK (num) { + // K = 0x1000003d1 = [ 0x40, 0x3d1 ] + num.words[num.length] = 0; + num.words[num.length + 1] = 0; + num.length += 2; + + // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390 + var lo = 0; + for (var i = 0; i < num.length; i++) { + var w = num.words[i] | 0; + lo += w * 0x3d1; + num.words[i] = lo & 0x3ffffff; + lo = w * 0x40 + ((lo / 0x4000000) | 0); + } + + // Fast length reduction + if (num.words[num.length - 1] === 0) { + num.length--; + if (num.words[num.length - 1] === 0) { + num.length--; + } + } + return num; + }; + + function P224 () { + MPrime.call( + this, + 'p224', + 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001'); + } + inherits(P224, MPrime); + + function P192 () { + MPrime.call( + this, + 'p192', + 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff'); + } + inherits(P192, MPrime); + + function P25519 () { + // 2 ^ 255 - 19 + MPrime.call( + this, + '25519', + '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed'); + } + inherits(P25519, MPrime); + + P25519.prototype.imulK = function imulK (num) { + // K = 0x13 + var carry = 0; + for (var i = 0; i < num.length; i++) { + var hi = (num.words[i] | 0) * 0x13 + carry; + var lo = hi & 0x3ffffff; + hi >>>= 26; + + num.words[i] = lo; + carry = hi; + } + if (carry !== 0) { + num.words[num.length++] = carry; + } + return num; + }; + + // Exported mostly for testing purposes, use plain name instead + BN._prime = function prime (name) { + // Cached version of prime + if (primes[name]) return primes[name]; + + var prime; + if (name === 'k256') { + prime = new K256(); + } else if (name === 'p224') { + prime = new P224(); + } else if (name === 'p192') { + prime = new P192(); + } else if (name === 'p25519') { + prime = new P25519(); + } else { + throw new Error('Unknown prime ' + name); + } + primes[name] = prime; + + return prime; + }; + + // + // Base reduction engine + // + function Red (m) { + if (typeof m === 'string') { + var prime = BN._prime(m); + this.m = prime.p; + this.prime = prime; + } else { + assert(m.gtn(1), 'modulus must be greater than 1'); + this.m = m; + this.prime = null; + } + } + + Red.prototype._verify1 = function _verify1 (a) { + assert(a.negative === 0, 'red works only with positives'); + assert(a.red, 'red works only with red numbers'); + }; + + Red.prototype._verify2 = function _verify2 (a, b) { + assert((a.negative | b.negative) === 0, 'red works only with positives'); + assert(a.red && a.red === b.red, + 'red works only with red numbers'); + }; + + Red.prototype.imod = function imod (a) { + if (this.prime) return this.prime.ireduce(a)._forceRed(this); + return a.umod(this.m)._forceRed(this); + }; + + Red.prototype.neg = function neg (a) { + if (a.isZero()) { + return a.clone(); + } + + return this.m.sub(a)._forceRed(this); + }; + + Red.prototype.add = function add (a, b) { + this._verify2(a, b); + + var res = a.add(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.iadd = function iadd (a, b) { + this._verify2(a, b); + + var res = a.iadd(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res; + }; + + Red.prototype.sub = function sub (a, b) { + this._verify2(a, b); + + var res = a.sub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.isub = function isub (a, b) { + this._verify2(a, b); + + var res = a.isub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res; + }; + + Red.prototype.shl = function shl (a, num) { + this._verify1(a); + return this.imod(a.ushln(num)); + }; + + Red.prototype.imul = function imul (a, b) { + this._verify2(a, b); + return this.imod(a.imul(b)); + }; + + Red.prototype.mul = function mul (a, b) { + this._verify2(a, b); + return this.imod(a.mul(b)); + }; + + Red.prototype.isqr = function isqr (a) { + return this.imul(a, a.clone()); + }; + + Red.prototype.sqr = function sqr (a) { + return this.mul(a, a); + }; + + Red.prototype.sqrt = function sqrt (a) { + if (a.isZero()) return a.clone(); + + var mod3 = this.m.andln(3); + assert(mod3 % 2 === 1); + + // Fast case + if (mod3 === 3) { + var pow = this.m.add(new BN(1)).iushrn(2); + return this.pow(a, pow); + } + + // Tonelli-Shanks algorithm (Totally unoptimized and slow) + // + // Find Q and S, that Q * 2 ^ S = (P - 1) + var q = this.m.subn(1); + var s = 0; + while (!q.isZero() && q.andln(1) === 0) { + s++; + q.iushrn(1); + } + assert(!q.isZero()); + + var one = new BN(1).toRed(this); + var nOne = one.redNeg(); + + // Find quadratic non-residue + // NOTE: Max is such because of generalized Riemann hypothesis. + var lpow = this.m.subn(1).iushrn(1); + var z = this.m.bitLength(); + z = new BN(2 * z * z).toRed(this); + + while (this.pow(z, lpow).cmp(nOne) !== 0) { + z.redIAdd(nOne); + } + + var c = this.pow(z, q); + var r = this.pow(a, q.addn(1).iushrn(1)); + var t = this.pow(a, q); + var m = s; + while (t.cmp(one) !== 0) { + var tmp = t; + for (var i = 0; tmp.cmp(one) !== 0; i++) { + tmp = tmp.redSqr(); + } + assert(i < m); + var b = this.pow(c, new BN(1).iushln(m - i - 1)); + + r = r.redMul(b); + c = b.redSqr(); + t = t.redMul(c); + m = i; + } + + return r; + }; + + Red.prototype.invm = function invm (a) { + var inv = a._invmp(this.m); + if (inv.negative !== 0) { + inv.negative = 0; + return this.imod(inv).redNeg(); + } else { + return this.imod(inv); + } + }; + + Red.prototype.pow = function pow (a, num) { + if (num.isZero()) return new BN(1).toRed(this); + if (num.cmpn(1) === 0) return a.clone(); + + var windowSize = 4; + var wnd = new Array(1 << windowSize); + wnd[0] = new BN(1).toRed(this); + wnd[1] = a; + for (var i = 2; i < wnd.length; i++) { + wnd[i] = this.mul(wnd[i - 1], a); + } + + var res = wnd[0]; + var current = 0; + var currentLen = 0; + var start = num.bitLength() % 26; + if (start === 0) { + start = 26; + } + + for (i = num.length - 1; i >= 0; i--) { + var word = num.words[i]; + for (var j = start - 1; j >= 0; j--) { + var bit = (word >> j) & 1; + if (res !== wnd[0]) { + res = this.sqr(res); + } + + if (bit === 0 && current === 0) { + currentLen = 0; + continue; + } + + current <<= 1; + current |= bit; + currentLen++; + if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue; + + res = this.mul(res, wnd[current]); + currentLen = 0; + current = 0; + } + start = 26; + } + + return res; + }; + + Red.prototype.convertTo = function convertTo (num) { + var r = num.umod(this.m); + + return r === num ? r.clone() : r; + }; + + Red.prototype.convertFrom = function convertFrom (num) { + var res = num.clone(); + res.red = null; + return res; + }; + + // + // Montgomery method engine + // + + BN.mont = function mont (num) { + return new Mont(num); + }; + + function Mont (m) { + Red.call(this, m); + + this.shift = this.m.bitLength(); + if (this.shift % 26 !== 0) { + this.shift += 26 - (this.shift % 26); + } + + this.r = new BN(1).iushln(this.shift); + this.r2 = this.imod(this.r.sqr()); + this.rinv = this.r._invmp(this.m); + + this.minv = this.rinv.mul(this.r).isubn(1).div(this.m); + this.minv = this.minv.umod(this.r); + this.minv = this.r.sub(this.minv); + } + inherits(Mont, Red); + + Mont.prototype.convertTo = function convertTo (num) { + return this.imod(num.ushln(this.shift)); + }; + + Mont.prototype.convertFrom = function convertFrom (num) { + var r = this.imod(num.mul(this.rinv)); + r.red = null; + return r; + }; + + Mont.prototype.imul = function imul (a, b) { + if (a.isZero() || b.isZero()) { + a.words[0] = 0; + a.length = 1; + return a; + } + + var t = a.imul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.mul = function mul (a, b) { + if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this); + + var t = a.mul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.invm = function invm (a) { + // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R + var res = this.imod(a._invmp(this.m).mul(this.r2)); + return res._forceRed(this); + }; +})(typeof module === 'undefined' || module, this); + +},{"buffer":2}],34:[function(_glvis_,module,exports){ +'use strict' + +module.exports = boundary + +function boundary (cells) { + var i, j, k + var n = cells.length + var sz = 0 + for (i = 0; i < n; ++i) { + sz += cells[i].length + } + var result = new Array(sz) + var ptr = 0 + for (i = 0; i < n; ++i) { + var c = cells[i] + var d = c.length + for (j = 0; j < d; ++j) { + var b = result[ptr++] = new Array(d - 1) + var p = 0 + for (k = 0; k < d; ++k) { + if (k === j) { + continue + } + b[p++] = c[k] + } + if (j & 1) { + var tmp = b[1] + b[1] = b[0] + b[0] = tmp + } + } + } + return result +} + +},{}],35:[function(_glvis_,module,exports){ +'use strict' + +module.exports = boxIntersectWrapper + +var pool = _glvis_('typedarray-pool') +var sweep = _glvis_('./lib/sweep') +var boxIntersectIter = _glvis_('./lib/intersect') + +function boxEmpty(d, box) { + for(var j=0; j>>1 + if(d <= 0) { + return + } + + var retval + + //Convert red boxes + var redList = pool.mallocDouble(2*d*n) + var redIds = pool.mallocInt32(n) + n = convertBoxes(red, d, redList, redIds) + + if(n > 0) { + if(d === 1 && full) { + //Special case: 1d complete + sweep.init(n) + retval = sweep.sweepComplete( + d, visit, + 0, n, redList, redIds, + 0, n, redList, redIds) + } else { + + //Convert blue boxes + var blueList = pool.mallocDouble(2*d*m) + var blueIds = pool.mallocInt32(m) + m = convertBoxes(blue, d, blueList, blueIds) + + if(m > 0) { + sweep.init(n+m) + + if(d === 1) { + //Special case: 1d bipartite + retval = sweep.sweepBipartite( + d, visit, + 0, n, redList, redIds, + 0, m, blueList, blueIds) + } else { + //General case: d>1 + retval = boxIntersectIter( + d, visit, full, + n, redList, redIds, + m, blueList, blueIds) + } + + pool.free(blueList) + pool.free(blueIds) + } + } + + pool.free(redList) + pool.free(redIds) + } + + return retval +} + + +var RESULT + +function appendItem(i,j) { + RESULT.push([i,j]) +} + +function intersectFullArray(x) { + RESULT = [] + boxIntersect(x, x, appendItem, true) + return RESULT +} + +function intersectBipartiteArray(x, y) { + RESULT = [] + boxIntersect(x, y, appendItem, false) + return RESULT +} + +//User-friendly wrapper, handle full input and no-visitor cases +function boxIntersectWrapper(arg0, arg1, arg2) { + switch(arguments.length) { + case 1: + return intersectFullArray(arg0) + case 2: + if(typeof arg1 === 'function') { + return boxIntersect(arg0, arg0, arg1, true) + } else { + return intersectBipartiteArray(arg0, arg1) + } + case 3: + return boxIntersect(arg0, arg1, arg2, false) + default: + throw new Error('box-intersect: Invalid arguments') + } +} +},{"./lib/intersect":37,"./lib/sweep":41,"typedarray-pool":308}],36:[function(_glvis_,module,exports){ +'use strict' + +function full() { + function bruteForceRedFull(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) { + var es = 2 * d + for (var i = rs, rp = es * rs; i < re; ++i, rp += es) { + var x0 = rb[ax + rp], x1 = rb[ax + rp + d], xi = ri[i] + Q: for (var j = bs, bp = es * bs; j < be; ++j, bp += es) { + var y0 = bb[ax + bp], y1 = bb[ax + bp + d], yi = bi[j] + if (y1 < x0 || x1 < y0) continue + for (var k = ax + 1; k < d; ++k) { + var r0 = rb[k + rp], r1 = rb[k + d + rp], b0 = bb[k + bp], b1 = bb[k + d + bp] + if (r1 < b0 || b1 < r0) continue Q + } + var rv = vv(xi, yi) + if (rv !== void 0) return rv + } + } + } + function bruteForceBlueFull(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) { + var es = 2 * d + for (var j = bs, bp = es * bs; j < be; ++j, bp += es) { + var y0 = bb[ax + bp], y1 = bb[ax + bp + d], yi = bi[j] + Q: for (var i = rs, rp = es * rs; i < re; ++i, rp += es) { + var x0 = rb[ax + rp], x1 = rb[ax + rp + d], xi = ri[i] + if (y1 < x0 || x1 < y0) continue + for (var k = ax + 1; k < d; ++k) { + var r0 = rb[k + rp], r1 = rb[k + d + rp], b0 = bb[k + bp], b1 = bb[k + d + bp] + if (r1 < b0 || b1 < r0) continue Q + } + var rv = vv(xi, yi) + if (rv !== void 0) return rv + } + } + } + function bruteForceFull(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) { + if (re - rs > be - bs) { + return bruteForceRedFull(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) + } + else { + return bruteForceBlueFull(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) + } + } + return bruteForceFull +} + +function partial() { + function bruteForceRedFlip(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) { + var es = 2 * d + for (var i = rs, rp = es * rs; i < re; ++i, rp += es) { + var x0 = rb[ax + rp], x1 = rb[ax + rp + d], xi = ri[i] + Q: for (var j = bs, bp = es * bs; j < be; ++j, bp += es) { + var y0 = bb[ax + bp], yi = bi[j] + if (y0 <= x0 || x1 < y0) continue + for (var k = ax + 1; k < d; ++k) { + var r0 = rb[k + rp], r1 = rb[k + d + rp], b0 = bb[k + bp], b1 = bb[k + d + bp] + if (r1 < b0 || b1 < r0) continue Q + } + var rv = vv(yi, xi) + if (rv !== void 0) return rv + } + } + } + function bruteForceRed(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) { + var es = 2 * d + for (var i = rs, rp = es * rs; i < re; ++i, rp += es) { + var x0 = rb[ax + rp], x1 = rb[ax + rp + d], xi = ri[i] + Q: for (var j = bs, bp = es * bs; j < be; ++j, bp += es) { + var y0 = bb[ax + bp], yi = bi[j] + if (y0 < x0 || x1 < y0) continue + for (var k = ax + 1; k < d; ++k) { + var r0 = rb[k + rp], r1 = rb[k + d + rp], b0 = bb[k + bp], b1 = bb[k + d + bp] + if (r1 < b0 || b1 < r0) continue Q + } + var rv = vv(xi, yi) + if (rv !== void 0) return rv + } + } + } + function bruteForceBlueFlip(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) { + var es = 2 * d + for (var j = bs, bp = es * bs; j < be; ++j, bp += es) { + var y0 = bb[ax + bp], yi = bi[j] + Q: for (var i = rs, rp = es * rs; i < re; ++i, rp += es) { + var x0 = rb[ax + rp], x1 = rb[ax + rp + d], xi = ri[i] + if (y0 <= x0 || x1 < y0) continue + for (var k = ax + 1; k < d; ++k) { + var r0 = rb[k + rp], r1 = rb[k + d + rp], b0 = bb[k + bp], b1 = bb[k + d + bp] + if (r1 < b0 || b1 < r0) continue Q + } + var rv = vv(yi, xi) + if (rv !== void 0) return rv + } + } + } + function bruteForceBlue(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) { + var es = 2 * d + for (var j = bs, bp = es * bs; j < be; ++j, bp += es) { + var y0 = bb[ax + bp], yi = bi[j] + Q: for (var i = rs, rp = es * rs; i < re; ++i, rp += es) { + var x0 = rb[ax + rp], x1 = rb[ax + rp + d], xi = ri[i] + if (y0 < x0 || x1 < y0) continue + for (var k = ax + 1; k < d; ++k) { + var r0 = rb[k + rp], r1 = rb[k + d + rp], b0 = bb[k + bp], b1 = bb[k + d + bp] + if (r1 < b0 || b1 < r0) continue Q + } + var rv = vv(xi, yi) + if (rv !== void 0) return rv + } + } + } + function bruteForcePartial(d, ax, vv, fp, rs, re, rb, ri, bs, be, bb, bi) { + if (re - rs > be - bs) { + if (fp) { + return bruteForceRedFlip(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) + } + else { + return bruteForceRed(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) + } + } + else { + if (fp) { + return bruteForceBlueFlip(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) + } + else { + return bruteForceBlue(d, ax, vv, rs, re, rb, ri, bs, be, bb, bi) + } + } + } + return bruteForcePartial +} + +function bruteForcePlanner(isFull) { + return isFull ? full() : partial() + +} + +exports.partial = bruteForcePlanner(false) +exports.full = bruteForcePlanner(true) +},{}],37:[function(_glvis_,module,exports){ +'use strict' + +module.exports = boxIntersectIter + +var pool = _glvis_('typedarray-pool') +var bits = _glvis_('bit-twiddle') +var bruteForce = _glvis_('./brute') +var bruteForcePartial = bruteForce.partial +var bruteForceFull = bruteForce.full +var sweep = _glvis_('./sweep') +var findMedian = _glvis_('./median') +var genPartition = _glvis_('./partition') + +//Twiddle parameters +var BRUTE_FORCE_CUTOFF = 128 //Cut off for brute force search +var SCAN_CUTOFF = (1<<22) //Cut off for two way scan +var SCAN_COMPLETE_CUTOFF = (1<<22) + +//Partition functions +var partitionInteriorContainsInterval = genPartition( + '!(lo>=p0)&&!(p1>=hi)') + +var partitionStartEqual = genPartition( + 'lo===p0') + +var partitionStartLessThan = genPartition( + 'lo 0) { + top -= 1 + + var iptr = top * IFRAME_SIZE + var axis = BOX_ISTACK[iptr] + var redStart = BOX_ISTACK[iptr+1] + var redEnd = BOX_ISTACK[iptr+2] + var blueStart = BOX_ISTACK[iptr+3] + var blueEnd = BOX_ISTACK[iptr+4] + var state = BOX_ISTACK[iptr+5] + + var dptr = top * DFRAME_SIZE + var lo = BOX_DSTACK[dptr] + var hi = BOX_DSTACK[dptr+1] + + //Unpack state info + var flip = (state & 1) + var full = !!(state & 16) + + //Unpack indices + var red = xBoxes + var redIndex = xIndex + var blue = yBoxes + var blueIndex = yIndex + if(flip) { + red = yBoxes + redIndex = yIndex + blue = xBoxes + blueIndex = xIndex + } + + if(state & 2) { + redEnd = partitionStartLessThan( + d, axis, + redStart, redEnd, red, redIndex, + hi) + if(redStart >= redEnd) { + continue + } + } + if(state & 4) { + redStart = partitionEndLessThanEqual( + d, axis, + redStart, redEnd, red, redIndex, + lo) + if(redStart >= redEnd) { + continue + } + } + + var redCount = redEnd - redStart + var blueCount = blueEnd - blueStart + + if(full) { + if(d * redCount * (redCount + blueCount) < SCAN_COMPLETE_CUTOFF) { + retval = sweep.scanComplete( + d, axis, visit, + redStart, redEnd, red, redIndex, + blueStart, blueEnd, blue, blueIndex) + if(retval !== void 0) { + return retval + } + continue + } + } else { + if(d * Math.min(redCount, blueCount) < BRUTE_FORCE_CUTOFF) { + //If input small, then use brute force + retval = bruteForcePartial( + d, axis, visit, flip, + redStart, redEnd, red, redIndex, + blueStart, blueEnd, blue, blueIndex) + if(retval !== void 0) { + return retval + } + continue + } else if(d * redCount * blueCount < SCAN_CUTOFF) { + //If input medium sized, then use sweep and prune + retval = sweep.scanBipartite( + d, axis, visit, flip, + redStart, redEnd, red, redIndex, + blueStart, blueEnd, blue, blueIndex) + if(retval !== void 0) { + return retval + } + continue + } + } + + //First, find all red intervals whose interior contains (lo,hi) + var red0 = partitionInteriorContainsInterval( + d, axis, + redStart, redEnd, red, redIndex, + lo, hi) + + //Lower dimensional case + if(redStart < red0) { + + if(d * (red0 - redStart) < BRUTE_FORCE_CUTOFF) { + //Special case for small inputs: use brute force + retval = bruteForceFull( + d, axis+1, visit, + redStart, red0, red, redIndex, + blueStart, blueEnd, blue, blueIndex) + if(retval !== void 0) { + return retval + } + } else if(axis === d-2) { + if(flip) { + retval = sweep.sweepBipartite( + d, visit, + blueStart, blueEnd, blue, blueIndex, + redStart, red0, red, redIndex) + } else { + retval = sweep.sweepBipartite( + d, visit, + redStart, red0, red, redIndex, + blueStart, blueEnd, blue, blueIndex) + } + if(retval !== void 0) { + return retval + } + } else { + iterPush(top++, + axis+1, + redStart, red0, + blueStart, blueEnd, + flip, + -Infinity, Infinity) + iterPush(top++, + axis+1, + blueStart, blueEnd, + redStart, red0, + flip^1, + -Infinity, Infinity) + } + } + + //Divide and conquer phase + if(red0 < redEnd) { + + //Cut blue into 3 parts: + // + // Points < mid point + // Points = mid point + // Points > mid point + // + var blue0 = findMedian( + d, axis, + blueStart, blueEnd, blue, blueIndex) + var mid = blue[elemSize * blue0 + axis] + var blue1 = partitionStartEqual( + d, axis, + blue0, blueEnd, blue, blueIndex, + mid) + + //Right case + if(blue1 < blueEnd) { + iterPush(top++, + axis, + red0, redEnd, + blue1, blueEnd, + (flip|4) + (full ? 16 : 0), + mid, hi) + } + + //Left case + if(blueStart < blue0) { + iterPush(top++, + axis, + red0, redEnd, + blueStart, blue0, + (flip|2) + (full ? 16 : 0), + lo, mid) + } + + //Center case (the hard part) + if(blue0 + 1 === blue1) { + //Optimization: Range with exactly 1 point, use a brute force scan + if(full) { + retval = onePointFull( + d, axis, visit, + red0, redEnd, red, redIndex, + blue0, blue, blueIndex[blue0]) + } else { + retval = onePointPartial( + d, axis, visit, flip, + red0, redEnd, red, redIndex, + blue0, blue, blueIndex[blue0]) + } + if(retval !== void 0) { + return retval + } + } else if(blue0 < blue1) { + var red1 + if(full) { + //If full intersection, need to handle special case + red1 = partitionContainsPoint( + d, axis, + red0, redEnd, red, redIndex, + mid) + if(red0 < red1) { + var redX = partitionStartEqual( + d, axis, + red0, red1, red, redIndex, + mid) + if(axis === d-2) { + //Degenerate sweep intersection: + // [red0, redX] with [blue0, blue1] + if(red0 < redX) { + retval = sweep.sweepComplete( + d, visit, + red0, redX, red, redIndex, + blue0, blue1, blue, blueIndex) + if(retval !== void 0) { + return retval + } + } + + //Normal sweep intersection: + // [redX, red1] with [blue0, blue1] + if(redX < red1) { + retval = sweep.sweepBipartite( + d, visit, + redX, red1, red, redIndex, + blue0, blue1, blue, blueIndex) + if(retval !== void 0) { + return retval + } + } + } else { + if(red0 < redX) { + iterPush(top++, + axis+1, + red0, redX, + blue0, blue1, + 16, + -Infinity, Infinity) + } + if(redX < red1) { + iterPush(top++, + axis+1, + redX, red1, + blue0, blue1, + 0, + -Infinity, Infinity) + iterPush(top++, + axis+1, + blue0, blue1, + redX, red1, + 1, + -Infinity, Infinity) + } + } + } + } else { + if(flip) { + red1 = partitionContainsPointProper( + d, axis, + red0, redEnd, red, redIndex, + mid) + } else { + red1 = partitionContainsPoint( + d, axis, + red0, redEnd, red, redIndex, + mid) + } + if(red0 < red1) { + if(axis === d-2) { + if(flip) { + retval = sweep.sweepBipartite( + d, visit, + blue0, blue1, blue, blueIndex, + red0, red1, red, redIndex) + } else { + retval = sweep.sweepBipartite( + d, visit, + red0, red1, red, redIndex, + blue0, blue1, blue, blueIndex) + } + } else { + iterPush(top++, + axis+1, + red0, red1, + blue0, blue1, + flip, + -Infinity, Infinity) + iterPush(top++, + axis+1, + blue0, blue1, + red0, red1, + flip^1, + -Infinity, Infinity) + } + } + } + } + } + } +} +},{"./brute":36,"./median":38,"./partition":39,"./sweep":41,"bit-twiddle":32,"typedarray-pool":308}],38:[function(_glvis_,module,exports){ +'use strict' + +module.exports = findMedian + +var genPartition = _glvis_('./partition') + +var partitionStartLessThan = genPartition('lostart && boxes[ptr+axis] > x; + --j, ptr-=elemSize) { + //Swap + var aPtr = ptr + var bPtr = ptr+elemSize + for(var k=0; k>> 1) + var elemSize = 2*d + var pivot = mid + var value = boxes[elemSize*mid+axis] + + while(lo < hi) { + if(hi - lo < PARTITION_THRESHOLD) { + insertionSort(d, axis, lo, hi, boxes, ids) + value = boxes[elemSize*mid+axis] + break + } + + //Select pivot using median-of-3 + var count = hi - lo + var pivot0 = (Math.random()*count+lo)|0 + var value0 = boxes[elemSize*pivot0 + axis] + var pivot1 = (Math.random()*count+lo)|0 + var value1 = boxes[elemSize*pivot1 + axis] + var pivot2 = (Math.random()*count+lo)|0 + var value2 = boxes[elemSize*pivot2 + axis] + if(value0 <= value1) { + if(value2 >= value1) { + pivot = pivot1 + value = value1 + } else if(value0 >= value2) { + pivot = pivot0 + value = value0 + } else { + pivot = pivot2 + value = value2 + } + } else { + if(value1 >= value2) { + pivot = pivot1 + value = value1 + } else if(value2 >= value0) { + pivot = pivot0 + value = value0 + } else { + pivot = pivot2 + value = value2 + } + } + + //Swap pivot to end of array + var aPtr = elemSize * (hi-1) + var bPtr = elemSize * pivot + for(var i=0; i=p0)&&!(p1>=hi)': lo_lessThan_p0_and_p1_lessThan_hi +} + +function genPartition(predicate) { + return P2F[predicate] +} + +// lo===p0 +function lo_equal_p0(a, b, c, d, e, f, p0) { + for (var j = 2 * a, k = j * c, l = k, m = c, n = b, o = a + b, p = c; d > p; ++p, k += j) { + var lo = e[k + n]; + if (lo === p0) if (m === p) m += 1, l += j; else { + for (var s = 0; j > s; ++s) { + var t = e[k + s]; e[k + s] = e[l], e[l++] = t + } var u = f[p]; f[p] = f[m], f[m++] = u + } + } + return m +} + +// lo p; ++p, k += j) { + var lo = e[k + n]; + if (lo < p0) if (m === p) m += 1, l += j; else { + for (var s = 0; j > s; ++s) { + var t = e[k + s]; e[k + s] = e[l], e[l++] = t + } var u = f[p]; f[p] = f[m], f[m++] = u + } + } + return m +} + +// lo<=p0 +function lo_lessOrEqual_p0(a, b, c, d, e, f, p0) { + for (var j = 2 * a, k = j * c, l = k, m = c, n = b, o = a + b, p = c; d > p; ++p, k += j) { + var hi = e[k + o]; + if (hi <= p0) if (m === p) m += 1, l += j; else { + for (var s = 0; j > s; ++s) { + var t = e[k + s]; e[k + s] = e[l], e[l++] = t + } + var u = f[p]; f[p] = f[m], f[m++] = u + } + } return m +} + +// hi<=p0 +function hi_lessOrEqual_p0(a, b, c, d, e, f, p0) { + for (var j = 2 * a, k = j * c, l = k, m = c, n = b, o = a + b, p = c; d > p; ++p, k += j) { + var hi = e[k + o]; + if (hi <= p0) if (m === p) m += 1, l += j; else { + for (var s = 0; j > s; ++s) { + var t = e[k + s]; e[k + s] = e[l], e[l++] = t + } + var u = f[p]; f[p] = f[m], f[m++] = u + } + } + return m +} + +// lo<=p0&&p0<=hi +function lo_lassOrEqual_p0_and_p0_lessOrEqual_hi(a, b, c, d, e, f, p0) { + for (var j = 2 * a, k = j * c, l = k, m = c, n = b, o = a + b, p = c; d > p; ++p, k += j) { + var lo = e[k + n], hi = e[k + o]; + if (lo <= p0 && p0 <= hi) if (m === p) m += 1, l += j; else { + for (var s = 0; j > s; ++s) { + var t = e[k + s]; e[k + s] = e[l], e[l++] = t + } + var u = f[p]; f[p] = f[m], f[m++] = u + } + } + return m +} + +// lo p; ++p, k += j) { + var lo = e[k + n], hi = e[k + o]; + if (lo < p0 && p0 <= hi) if (m === p) m += 1, l += j; else { + for (var s = 0; j > s; ++s) { + var t = e[k + s]; e[k + s] = e[l], e[l++] = t + } + var u = f[p]; f[p] = f[m], f[m++] = u + } + } + return m +} + +// !(lo>=p0)&&!(p1>=hi) +function lo_lessThan_p0_and_p1_lessThan_hi(a, b, c, d, e, f, p0, p1) { + for (var j = 2 * a, k = j * c, l = k, m = c, n = b, o = a + b, p = c; d > p; ++p, k += j) { + var lo = e[k + n], hi = e[k + o]; + if (!(lo >= p0) && !(p1 >= hi)) if (m === p) m += 1, l += j; else { + for (var s = 0; j > s; ++s) { + var t = e[k + s]; e[k + s] = e[l], e[l++] = t + } + var u = f[p]; f[p] = f[m], f[m++] = u + } + } + return m +} + +},{}],40:[function(_glvis_,module,exports){ +'use strict'; + +//This code is extracted from ndarray-sort +//It is inlined here as a temporary workaround + +module.exports = wrapper; + +var INSERT_SORT_CUTOFF = 32 + +function wrapper(data, n0) { + if (n0 <= 4*INSERT_SORT_CUTOFF) { + insertionSort(0, n0 - 1, data); + } else { + quickSort(0, n0 - 1, data); + } +} + +function insertionSort(left, right, data) { + var ptr = 2*(left+1) + for(var i=left+1; i<=right; ++i) { + var a = data[ptr++] + var b = data[ptr++] + var j = i + var jptr = ptr-2 + while(j-- > left) { + var x = data[jptr-2] + var y = data[jptr-1] + if(x < a) { + break + } else if(x === a && y < b) { + break + } + data[jptr] = x + data[jptr+1] = y + jptr -= 2 + } + data[jptr] = a + data[jptr+1] = b + } +} + +function swap(i, j, data) { + i *= 2 + j *= 2 + var x = data[i] + var y = data[i+1] + data[i] = data[j] + data[i+1] = data[j+1] + data[j] = x + data[j+1] = y +} + +function move(i, j, data) { + i *= 2 + j *= 2 + data[i] = data[j] + data[i+1] = data[j+1] +} + +function rotate(i, j, k, data) { + i *= 2 + j *= 2 + k *= 2 + var x = data[i] + var y = data[i+1] + data[i] = data[j] + data[i+1] = data[j+1] + data[j] = data[k] + data[j+1] = data[k+1] + data[k] = x + data[k+1] = y +} + +function shufflePivot(i, j, px, py, data) { + i *= 2 + j *= 2 + data[i] = data[j] + data[j] = px + data[i+1] = data[j+1] + data[j+1] = py +} + +function compare(i, j, data) { + i *= 2 + j *= 2 + var x = data[i], + y = data[j] + if(x < y) { + return false + } else if(x === y) { + return data[i+1] > data[j+1] + } + return true +} + +function comparePivot(i, y, b, data) { + i *= 2 + var x = data[i] + if(x < y) { + return true + } else if(x === y) { + return data[i+1] < b + } + return false +} + +function quickSort(left, right, data) { + var sixth = (right - left + 1) / 6 | 0, + index1 = left + sixth, + index5 = right - sixth, + index3 = left + right >> 1, + index2 = index3 - sixth, + index4 = index3 + sixth, + el1 = index1, + el2 = index2, + el3 = index3, + el4 = index4, + el5 = index5, + less = left + 1, + great = right - 1, + tmp = 0 + if(compare(el1, el2, data)) { + tmp = el1 + el1 = el2 + el2 = tmp + } + if(compare(el4, el5, data)) { + tmp = el4 + el4 = el5 + el5 = tmp + } + if(compare(el1, el3, data)) { + tmp = el1 + el1 = el3 + el3 = tmp + } + if(compare(el2, el3, data)) { + tmp = el2 + el2 = el3 + el3 = tmp + } + if(compare(el1, el4, data)) { + tmp = el1 + el1 = el4 + el4 = tmp + } + if(compare(el3, el4, data)) { + tmp = el3 + el3 = el4 + el4 = tmp + } + if(compare(el2, el5, data)) { + tmp = el2 + el2 = el5 + el5 = tmp + } + if(compare(el2, el3, data)) { + tmp = el2 + el2 = el3 + el3 = tmp + } + if(compare(el4, el5, data)) { + tmp = el4 + el4 = el5 + el5 = tmp + } + + var pivot1X = data[2*el2] + var pivot1Y = data[2*el2+1] + var pivot2X = data[2*el4] + var pivot2Y = data[2*el4+1] + + var ptr0 = 2 * el1; + var ptr2 = 2 * el3; + var ptr4 = 2 * el5; + var ptr5 = 2 * index1; + var ptr6 = 2 * index3; + var ptr7 = 2 * index5; + for (var i1 = 0; i1 < 2; ++i1) { + var x = data[ptr0+i1]; + var y = data[ptr2+i1]; + var z = data[ptr4+i1]; + data[ptr5+i1] = x; + data[ptr6+i1] = y; + data[ptr7+i1] = z; + } + + move(index2, left, data) + move(index4, right, data) + for (var k = less; k <= great; ++k) { + if (comparePivot(k, pivot1X, pivot1Y, data)) { + if (k !== less) { + swap(k, less, data) + } + ++less; + } else { + if (!comparePivot(k, pivot2X, pivot2Y, data)) { + while (true) { + if (!comparePivot(great, pivot2X, pivot2Y, data)) { + if (--great < k) { + break; + } + continue; + } else { + if (comparePivot(great, pivot1X, pivot1Y, data)) { + rotate(k, less, great, data) + ++less; + --great; + } else { + swap(k, great, data) + --great; + } + break; + } + } + } + } + } + shufflePivot(left, less-1, pivot1X, pivot1Y, data) + shufflePivot(right, great+1, pivot2X, pivot2Y, data) + if (less - 2 - left <= INSERT_SORT_CUTOFF) { + insertionSort(left, less - 2, data); + } else { + quickSort(left, less - 2, data); + } + if (right - (great + 2) <= INSERT_SORT_CUTOFF) { + insertionSort(great + 2, right, data); + } else { + quickSort(great + 2, right, data); + } + if (great - less <= INSERT_SORT_CUTOFF) { + insertionSort(less, great, data); + } else { + quickSort(less, great, data); + } +} +},{}],41:[function(_glvis_,module,exports){ +'use strict' + +module.exports = { + init: sqInit, + sweepBipartite: sweepBipartite, + sweepComplete: sweepComplete, + scanBipartite: scanBipartite, + scanComplete: scanComplete +} + +var pool = _glvis_('typedarray-pool') +var bits = _glvis_('bit-twiddle') +var isort = _glvis_('./sort') + +//Flag for blue +var BLUE_FLAG = (1<<28) + +//1D sweep event queue stuff (use pool to save space) +var INIT_CAPACITY = 1024 +var RED_SWEEP_QUEUE = pool.mallocInt32(INIT_CAPACITY) +var RED_SWEEP_INDEX = pool.mallocInt32(INIT_CAPACITY) +var BLUE_SWEEP_QUEUE = pool.mallocInt32(INIT_CAPACITY) +var BLUE_SWEEP_INDEX = pool.mallocInt32(INIT_CAPACITY) +var COMMON_SWEEP_QUEUE = pool.mallocInt32(INIT_CAPACITY) +var COMMON_SWEEP_INDEX = pool.mallocInt32(INIT_CAPACITY) +var SWEEP_EVENTS = pool.mallocDouble(INIT_CAPACITY * 8) + +//Reserves memory for the 1D sweep data structures +function sqInit(count) { + var rcount = bits.nextPow2(count) + if(RED_SWEEP_QUEUE.length < rcount) { + pool.free(RED_SWEEP_QUEUE) + RED_SWEEP_QUEUE = pool.mallocInt32(rcount) + } + if(RED_SWEEP_INDEX.length < rcount) { + pool.free(RED_SWEEP_INDEX) + RED_SWEEP_INDEX = pool.mallocInt32(rcount) + } + if(BLUE_SWEEP_QUEUE.length < rcount) { + pool.free(BLUE_SWEEP_QUEUE) + BLUE_SWEEP_QUEUE = pool.mallocInt32(rcount) + } + if(BLUE_SWEEP_INDEX.length < rcount) { + pool.free(BLUE_SWEEP_INDEX) + BLUE_SWEEP_INDEX = pool.mallocInt32(rcount) + } + if(COMMON_SWEEP_QUEUE.length < rcount) { + pool.free(COMMON_SWEEP_QUEUE) + COMMON_SWEEP_QUEUE = pool.mallocInt32(rcount) + } + if(COMMON_SWEEP_INDEX.length < rcount) { + pool.free(COMMON_SWEEP_INDEX) + COMMON_SWEEP_INDEX = pool.mallocInt32(rcount) + } + var eventLength = 8 * rcount + if(SWEEP_EVENTS.length < eventLength) { + pool.free(SWEEP_EVENTS) + SWEEP_EVENTS = pool.mallocDouble(eventLength) + } +} + +//Remove an item from the active queue in O(1) +function sqPop(queue, index, count, item) { + var idx = index[item] + var top = queue[count-1] + queue[idx] = top + index[top] = idx +} + +//Insert an item into the active queue in O(1) +function sqPush(queue, index, count, item) { + queue[count] = item + index[item] = count +} + +//Recursion base case: use 1D sweep algorithm +function sweepBipartite( + d, visit, + redStart, redEnd, red, redIndex, + blueStart, blueEnd, blue, blueIndex) { + + //store events as pairs [coordinate, idx] + // + // red create: -(idx+1) + // red destroy: idx + // blue create: -(idx+BLUE_FLAG) + // blue destroy: idx+BLUE_FLAG + // + var ptr = 0 + var elemSize = 2*d + var istart = d-1 + var iend = elemSize-1 + + for(var i=redStart; iright + var n = ptr >>> 1 + isort(SWEEP_EVENTS, n) + + var redActive = 0 + var blueActive = 0 + for(var i=0; i= BLUE_FLAG) { + //blue destroy event + e = (e-BLUE_FLAG)|0 + sqPop(BLUE_SWEEP_QUEUE, BLUE_SWEEP_INDEX, blueActive--, e) + } else if(e >= 0) { + //red destroy event + sqPop(RED_SWEEP_QUEUE, RED_SWEEP_INDEX, redActive--, e) + } else if(e <= -BLUE_FLAG) { + //blue create event + e = (-e-BLUE_FLAG)|0 + for(var j=0; jright + var n = ptr >>> 1 + isort(SWEEP_EVENTS, n) + + var redActive = 0 + var blueActive = 0 + var commonActive = 0 + for(var i=0; i>1) === (SWEEP_EVENTS[2*i+3]>>1)) { + color = 2 + i += 1 + } + + if(e < 0) { + //Create event + var id = -(e>>1) - 1 + + //Intersect with common + for(var j=0; j>1) - 1 + if(color === 0) { + //Red + sqPop(RED_SWEEP_QUEUE, RED_SWEEP_INDEX, redActive--, id) + } else if(color === 1) { + //Blue + sqPop(BLUE_SWEEP_QUEUE, BLUE_SWEEP_INDEX, blueActive--, id) + } else if(color === 2) { + //Both + sqPop(COMMON_SWEEP_QUEUE, COMMON_SWEEP_INDEX, commonActive--, id) + } + } + } +} + +//Sweep and prune/scanline algorithm: +// Scan along axis, detect intersections +// Brute force all boxes along axis +function scanBipartite( + d, axis, visit, flip, + redStart, redEnd, red, redIndex, + blueStart, blueEnd, blue, blueIndex) { + + var ptr = 0 + var elemSize = 2*d + var istart = axis + var iend = axis+d + + var redShift = 1 + var blueShift = 1 + if(flip) { + blueShift = BLUE_FLAG + } else { + redShift = BLUE_FLAG + } + + for(var i=redStart; iright + var n = ptr >>> 1 + isort(SWEEP_EVENTS, n) + + var redActive = 0 + for(var i=0; i= BLUE_FLAG) { + isRed = !flip + idx -= BLUE_FLAG + } else { + isRed = !!flip + idx -= 1 + } + if(isRed) { + sqPush(RED_SWEEP_QUEUE, RED_SWEEP_INDEX, redActive++, idx) + } else { + var blueId = blueIndex[idx] + var bluePtr = elemSize * idx + + var b0 = blue[bluePtr+axis+1] + var b1 = blue[bluePtr+axis+1+d] + +red_loop: + for(var j=0; jright + var n = ptr >>> 1 + isort(SWEEP_EVENTS, n) + + var redActive = 0 + for(var i=0; i= BLUE_FLAG) { + RED_SWEEP_QUEUE[redActive++] = idx - BLUE_FLAG + } else { + idx -= 1 + var blueId = blueIndex[idx] + var bluePtr = elemSize * idx + + var b0 = blue[bluePtr+axis+1] + var b1 = blue[bluePtr+axis+1+d] + +red_loop: + for(var j=0; j=0; --j) { + if(RED_SWEEP_QUEUE[j] === idx) { + for(var k=j+1; k 0) { + var b = stack.pop() + var a = stack.pop() + + //Find opposite pairs + var x = -1, y = -1 + var star = stars[a] + for(var i=1; i= 0) { + continue + } + + //Flip the edge + triangulation.flip(a, b) + + //Test flipping neighboring edges + testFlip(points, triangulation, stack, x, a, y) + testFlip(points, triangulation, stack, a, y, x) + testFlip(points, triangulation, stack, y, b, x) + testFlip(points, triangulation, stack, b, x, y) + } +} + +},{"binary-search-bounds":31,"robust-in-sphere":282}],44:[function(_glvis_,module,exports){ +'use strict' + +var bsearch = _glvis_('binary-search-bounds') + +module.exports = classifyFaces + +function FaceIndex(cells, neighbor, constraint, flags, active, next, boundary) { + this.cells = cells + this.neighbor = neighbor + this.flags = flags + this.constraint = constraint + this.active = active + this.next = next + this.boundary = boundary +} + +var proto = FaceIndex.prototype + +function compareCell(a, b) { + return a[0] - b[0] || + a[1] - b[1] || + a[2] - b[2] +} + +proto.locate = (function() { + var key = [0,0,0] + return function(a, b, c) { + var x = a, y = b, z = c + if(b < c) { + if(b < a) { + x = b + y = c + z = a + } + } else if(c < a) { + x = c + y = a + z = b + } + if(x < 0) { + return -1 + } + key[0] = x + key[1] = y + key[2] = z + return bsearch.eq(this.cells, key, compareCell) + } +})() + +function indexCells(triangulation, infinity) { + //First get cells and canonicalize + var cells = triangulation.cells() + var nc = cells.length + for(var i=0; i 0 || next.length > 0) { + while(active.length > 0) { + var t = active.pop() + if(flags[t] === -side) { + continue + } + flags[t] = side + var c = cells[t] + for(var j=0; j<3; ++j) { + var f = neighbor[3*t+j] + if(f >= 0 && flags[f] === 0) { + if(constraint[3*t+j]) { + next.push(f) + } else { + active.push(f) + flags[f] = side + } + } + } + } + + //Swap arrays and loop + var tmp = next + next = active + active = tmp + next.length = 0 + side = -side + } + + var result = filterCells(cells, flags, target) + if(infinity) { + return result.concat(index.boundary) + } + return result +} + +},{"binary-search-bounds":31}],45:[function(_glvis_,module,exports){ +'use strict' + +var bsearch = _glvis_('binary-search-bounds') +var orient = _glvis_('robust-orientation')[3] + +var EVENT_POINT = 0 +var EVENT_END = 1 +var EVENT_START = 2 + +module.exports = monotoneTriangulate + +//A partial convex hull fragment, made of two unimonotone polygons +function PartialHull(a, b, idx, lowerIds, upperIds) { + this.a = a + this.b = b + this.idx = idx + this.lowerIds = lowerIds + this.upperIds = upperIds +} + +//An event in the sweep line procedure +function Event(a, b, type, idx) { + this.a = a + this.b = b + this.type = type + this.idx = idx +} + +//This is used to compare events for the sweep line procedure +// Points are: +// 1. sorted lexicographically +// 2. sorted by type (point < end < start) +// 3. segments sorted by winding order +// 4. sorted by index +function compareEvent(a, b) { + var d = + (a.a[0] - b.a[0]) || + (a.a[1] - b.a[1]) || + (a.type - b.type) + if(d) { return d } + if(a.type !== EVENT_POINT) { + d = orient(a.a, a.b, b.b) + if(d) { return d } + } + return a.idx - b.idx +} + +function testPoint(hull, p) { + return orient(hull.a, hull.b, p) +} + +function addPoint(cells, hulls, points, p, idx) { + var lo = bsearch.lt(hulls, p, testPoint) + var hi = bsearch.gt(hulls, p, testPoint) + for(var i=lo; i 1 && orient( + points[lowerIds[m-2]], + points[lowerIds[m-1]], + p) > 0) { + cells.push( + [lowerIds[m-1], + lowerIds[m-2], + idx]) + m -= 1 + } + lowerIds.length = m + lowerIds.push(idx) + + //Insert p into upper hull + var upperIds = hull.upperIds + var m = upperIds.length + while(m > 1 && orient( + points[upperIds[m-2]], + points[upperIds[m-1]], + p) < 0) { + cells.push( + [upperIds[m-2], + upperIds[m-1], + idx]) + m -= 1 + } + upperIds.length = m + upperIds.push(idx) + } +} + +function findSplit(hull, edge) { + var d + if(hull.a[0] < edge.a[0]) { + d = orient(hull.a, hull.b, edge.a) + } else { + d = orient(edge.b, edge.a, hull.a) + } + if(d) { return d } + if(edge.b[0] < hull.b[0]) { + d = orient(hull.a, hull.b, edge.b) + } else { + d = orient(edge.b, edge.a, hull.b) + } + return d || hull.idx - edge.idx +} + +function splitHulls(hulls, points, event) { + var splitIdx = bsearch.le(hulls, event, findSplit) + var hull = hulls[splitIdx] + var upperIds = hull.upperIds + var x = upperIds[upperIds.length-1] + hull.upperIds = [x] + hulls.splice(splitIdx+1, 0, + new PartialHull(event.a, event.b, event.idx, [x], upperIds)) +} + + +function mergeHulls(hulls, points, event) { + //Swap pointers for merge search + var tmp = event.a + event.a = event.b + event.b = tmp + var mergeIdx = bsearch.eq(hulls, event, findSplit) + var upper = hulls[mergeIdx] + var lower = hulls[mergeIdx-1] + lower.upperIds = upper.upperIds + hulls.splice(mergeIdx, 1) +} + + +function monotoneTriangulate(points, edges) { + + var numPoints = points.length + var numEdges = edges.length + + var events = [] + + //Create point events + for(var i=0; i b[0]) { + events.push( + new Event(b, a, EVENT_START, i), + new Event(a, b, EVENT_END, i)) + } + } + + //Sort events + events.sort(compareEvent) + + //Initialize hull + var minX = events[0].a[0] - (1 + Math.abs(events[0].a[0])) * Math.pow(2, -52) + var hull = [ new PartialHull([minX, 1], [minX, 0], -1, [], [], [], []) ] + + //Process events in order + var cells = [] + for(var i=0, numEvents=events.length; i= 0 + } +})() + +proto.removeTriangle = function(i, j, k) { + var stars = this.stars + removePair(stars[i], j, k) + removePair(stars[j], k, i) + removePair(stars[k], i, j) +} + +proto.addTriangle = function(i, j, k) { + var stars = this.stars + stars[i].push(j, k) + stars[j].push(k, i) + stars[k].push(i, j) +} + +proto.opposite = function(j, i) { + var list = this.stars[i] + for(var k=1, n=list.length; k= 0; --i) { + var junction = junctions[i] + e = junction[0] + + var edge = edges[e] + var s = edge[0] + var t = edge[1] + + // Check if edge is not lexicographically sorted + var a = floatPoints[s] + var b = floatPoints[t] + if (((a[0] - b[0]) || (a[1] - b[1])) < 0) { + var tmp = s + s = t + t = tmp + } + + // Split leading edge + edge[0] = s + var last = edge[1] = junction[1] + + // If we are grouping edges by color, remember to track data + var color + if (useColor) { + color = edge[2] + } + + // Split other edges + while (i > 0 && junctions[i - 1][0] === e) { + var junction = junctions[--i] + var next = junction[1] + if (useColor) { + edges.push([last, next, color]) + } else { + edges.push([last, next]) + } + last = next + } + + // Add final edge + if (useColor) { + edges.push([last, t, color]) + } else { + edges.push([last, t]) + } + } + + // Return constructed rational points + return ratPoints +} + +// Merge overlapping points +function dedupPoints (floatPoints, ratPoints, floatBounds) { + var numPoints = ratPoints.length + var uf = new UnionFind(numPoints) + + // Compute rational bounds + var bounds = [] + for (var i = 0; i < ratPoints.length; ++i) { + var p = ratPoints[i] + var xb = boundRat(p[0]) + var yb = boundRat(p[1]) + bounds.push([ + nextafter(xb[0], -Infinity), + nextafter(yb[0], -Infinity), + nextafter(xb[1], Infinity), + nextafter(yb[1], Infinity) + ]) + } + + // Link all points with over lapping boxes + boxIntersect(bounds, function (i, j) { + uf.link(i, j) + }) + + // Do 1 pass over points to combine points in label sets + var noDupes = true + var labels = new Array(numPoints) + for (var i = 0; i < numPoints; ++i) { + var j = uf.find(i) + if (j !== i) { + // Clear no-dupes flag, zero out label + noDupes = false + // Make each point the top-left point from its cell + floatPoints[j] = [ + Math.min(floatPoints[i][0], floatPoints[j][0]), + Math.min(floatPoints[i][1], floatPoints[j][1]) + ] + } + } + + // If no duplicates, return null to signal termination + if (noDupes) { + return null + } + + var ptr = 0 + for (var i = 0; i < numPoints; ++i) { + var j = uf.find(i) + if (j === i) { + labels[i] = ptr + floatPoints[ptr++] = floatPoints[i] + } else { + labels[i] = -1 + } + } + + floatPoints.length = ptr + + // Do a second pass to fix up missing labels + for (var i = 0; i < numPoints; ++i) { + if (labels[i] < 0) { + labels[i] = labels[uf.find(i)] + } + } + + // Return resulting union-find data structure + return labels +} + +function compareLex2 (a, b) { return (a[0] - b[0]) || (a[1] - b[1]) } +function compareLex3 (a, b) { + var d = (a[0] - b[0]) || (a[1] - b[1]) + if (d) { + return d + } + if (a[2] < b[2]) { + return -1 + } else if (a[2] > b[2]) { + return 1 + } + return 0 +} + +// Remove duplicate edge labels +function dedupEdges (edges, labels, useColor) { + if (edges.length === 0) { + return + } + if (labels) { + for (var i = 0; i < edges.length; ++i) { + var e = edges[i] + var a = labels[e[0]] + var b = labels[e[1]] + e[0] = Math.min(a, b) + e[1] = Math.max(a, b) + } + } else { + for (var i = 0; i < edges.length; ++i) { + var e = edges[i] + var a = e[0] + var b = e[1] + e[0] = Math.min(a, b) + e[1] = Math.max(a, b) + } + } + if (useColor) { + edges.sort(compareLex3) + } else { + edges.sort(compareLex2) + } + var ptr = 1 + for (var i = 1; i < edges.length; ++i) { + var prev = edges[i - 1] + var next = edges[i] + if (next[0] === prev[0] && next[1] === prev[1] && + (!useColor || next[2] === prev[2])) { + continue + } + edges[ptr++] = next + } + edges.length = ptr +} + +function preRound (points, edges, useColor) { + var labels = dedupPoints(points, [], boundPoints(points)) + dedupEdges(edges, labels, useColor) + return !!labels +} + +// Repeat until convergence +function snapRound (points, edges, useColor) { + // 1. find edge crossings + var edgeBounds = boundEdges(points, edges) + var crossings = getCrossings(points, edges, edgeBounds) + + // 2. find t-junctions + var vertBounds = boundPoints(points) + var tjunctions = getTJunctions(points, edges, edgeBounds, vertBounds) + + // 3. cut edges, construct rational points + var ratPoints = cutEdges(points, edges, crossings, tjunctions, useColor) + + // 4. dedupe verts + var labels = dedupPoints(points, ratPoints, vertBounds) + + // 5. dedupe edges + dedupEdges(edges, labels, useColor) + + // 6. check termination + if (!labels) { + return (crossings.length > 0 || tjunctions.length > 0) + } + + // More iterations necessary + return true +} + +// Main loop, runs PSLG clean up until completion +function cleanPSLG (points, edges, colors) { + // If using colors, augment edges with color data + var prevEdges + if (colors) { + prevEdges = edges + var augEdges = new Array(edges.length) + for (var i = 0; i < edges.length; ++i) { + var e = edges[i] + augEdges[i] = [e[0], e[1], colors[i]] + } + edges = augEdges + } + + // First round: remove duplicate edges and points + var modified = preRound(points, edges, !!colors) + + // Run snap rounding until convergence + while (snapRound(points, edges, !!colors)) { + modified = true + } + + // Strip color tags + if (!!colors && modified) { + prevEdges.length = 0 + colors.length = 0 + for (var i = 0; i < edges.length; ++i) { + var e = edges[i] + prevEdges.push([e[0], e[1]]) + colors.push(e[2]) + } + } + + return modified +} + +},{"./lib/rat-seg-intersect":51,"big-rat":18,"big-rat/cmp":16,"big-rat/to-float":30,"box-intersect":35,"nextafter":260,"rat-vec":273,"robust-segment-intersect":287,"union-find":309}],51:[function(_glvis_,module,exports){ +'use strict' + +module.exports = solveIntersection + +var ratMul = _glvis_('big-rat/mul') +var ratDiv = _glvis_('big-rat/div') +var ratSub = _glvis_('big-rat/sub') +var ratSign = _glvis_('big-rat/sign') +var rvSub = _glvis_('rat-vec/sub') +var rvAdd = _glvis_('rat-vec/add') +var rvMuls = _glvis_('rat-vec/muls') + +function ratPerp (a, b) { + return ratSub(ratMul(a[0], b[1]), ratMul(a[1], b[0])) +} + +// Solve for intersection +// x = a + t (b-a) +// (x - c) ^ (d-c) = 0 +// (t * (b-a) + (a-c) ) ^ (d-c) = 0 +// t * (b-a)^(d-c) = (d-c)^(a-c) +// t = (d-c)^(a-c) / (b-a)^(d-c) + +function solveIntersection (a, b, c, d) { + var ba = rvSub(b, a) + var dc = rvSub(d, c) + + var baXdc = ratPerp(ba, dc) + + if (ratSign(baXdc) === 0) { + return null + } + + var ac = rvSub(a, c) + var dcXac = ratPerp(dc, ac) + + var t = ratDiv(dcXac, baXdc) + var s = rvMuls(ba, t) + var r = rvAdd(a, s) + + return r +} + +},{"big-rat/div":17,"big-rat/mul":27,"big-rat/sign":28,"big-rat/sub":29,"rat-vec/add":272,"rat-vec/muls":274,"rat-vec/sub":275}],52:[function(_glvis_,module,exports){ +module.exports={ + "jet":[{"index":0,"rgb":[0,0,131]},{"index":0.125,"rgb":[0,60,170]},{"index":0.375,"rgb":[5,255,255]},{"index":0.625,"rgb":[255,255,0]},{"index":0.875,"rgb":[250,0,0]},{"index":1,"rgb":[128,0,0]}], + + "hsv":[{"index":0,"rgb":[255,0,0]},{"index":0.169,"rgb":[253,255,2]},{"index":0.173,"rgb":[247,255,2]},{"index":0.337,"rgb":[0,252,4]},{"index":0.341,"rgb":[0,252,10]},{"index":0.506,"rgb":[1,249,255]},{"index":0.671,"rgb":[2,0,253]},{"index":0.675,"rgb":[8,0,253]},{"index":0.839,"rgb":[255,0,251]},{"index":0.843,"rgb":[255,0,245]},{"index":1,"rgb":[255,0,6]}], + + "hot":[{"index":0,"rgb":[0,0,0]},{"index":0.3,"rgb":[230,0,0]},{"index":0.6,"rgb":[255,210,0]},{"index":1,"rgb":[255,255,255]}], + + "spring":[{"index":0,"rgb":[255,0,255]},{"index":1,"rgb":[255,255,0]}], + + "summer":[{"index":0,"rgb":[0,128,102]},{"index":1,"rgb":[255,255,102]}], + + "autumn":[{"index":0,"rgb":[255,0,0]},{"index":1,"rgb":[255,255,0]}], + + "winter":[{"index":0,"rgb":[0,0,255]},{"index":1,"rgb":[0,255,128]}], + + "bone":[{"index":0,"rgb":[0,0,0]},{"index":0.376,"rgb":[84,84,116]},{"index":0.753,"rgb":[169,200,200]},{"index":1,"rgb":[255,255,255]}], + + "copper":[{"index":0,"rgb":[0,0,0]},{"index":0.804,"rgb":[255,160,102]},{"index":1,"rgb":[255,199,127]}], + + "greys":[{"index":0,"rgb":[0,0,0]},{"index":1,"rgb":[255,255,255]}], + + "yignbu":[{"index":0,"rgb":[8,29,88]},{"index":0.125,"rgb":[37,52,148]},{"index":0.25,"rgb":[34,94,168]},{"index":0.375,"rgb":[29,145,192]},{"index":0.5,"rgb":[65,182,196]},{"index":0.625,"rgb":[127,205,187]},{"index":0.75,"rgb":[199,233,180]},{"index":0.875,"rgb":[237,248,217]},{"index":1,"rgb":[255,255,217]}], + + "greens":[{"index":0,"rgb":[0,68,27]},{"index":0.125,"rgb":[0,109,44]},{"index":0.25,"rgb":[35,139,69]},{"index":0.375,"rgb":[65,171,93]},{"index":0.5,"rgb":[116,196,118]},{"index":0.625,"rgb":[161,217,155]},{"index":0.75,"rgb":[199,233,192]},{"index":0.875,"rgb":[229,245,224]},{"index":1,"rgb":[247,252,245]}], + + "yiorrd":[{"index":0,"rgb":[128,0,38]},{"index":0.125,"rgb":[189,0,38]},{"index":0.25,"rgb":[227,26,28]},{"index":0.375,"rgb":[252,78,42]},{"index":0.5,"rgb":[253,141,60]},{"index":0.625,"rgb":[254,178,76]},{"index":0.75,"rgb":[254,217,118]},{"index":0.875,"rgb":[255,237,160]},{"index":1,"rgb":[255,255,204]}], + + "bluered":[{"index":0,"rgb":[0,0,255]},{"index":1,"rgb":[255,0,0]}], + + "rdbu":[{"index":0,"rgb":[5,10,172]},{"index":0.35,"rgb":[106,137,247]},{"index":0.5,"rgb":[190,190,190]},{"index":0.6,"rgb":[220,170,132]},{"index":0.7,"rgb":[230,145,90]},{"index":1,"rgb":[178,10,28]}], + + "picnic":[{"index":0,"rgb":[0,0,255]},{"index":0.1,"rgb":[51,153,255]},{"index":0.2,"rgb":[102,204,255]},{"index":0.3,"rgb":[153,204,255]},{"index":0.4,"rgb":[204,204,255]},{"index":0.5,"rgb":[255,255,255]},{"index":0.6,"rgb":[255,204,255]},{"index":0.7,"rgb":[255,153,255]},{"index":0.8,"rgb":[255,102,204]},{"index":0.9,"rgb":[255,102,102]},{"index":1,"rgb":[255,0,0]}], + + "rainbow":[{"index":0,"rgb":[150,0,90]},{"index":0.125,"rgb":[0,0,200]},{"index":0.25,"rgb":[0,25,255]},{"index":0.375,"rgb":[0,152,255]},{"index":0.5,"rgb":[44,255,150]},{"index":0.625,"rgb":[151,255,0]},{"index":0.75,"rgb":[255,234,0]},{"index":0.875,"rgb":[255,111,0]},{"index":1,"rgb":[255,0,0]}], + + 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[{"index":0,"rgb":[0,0,0]},{"index":0.07,"rgb":[22,5,59]},{"index":0.13,"rgb":[60,4,105]},{"index":0.2,"rgb":[109,1,135]},{"index":0.27,"rgb":[161,0,147]},{"index":0.33,"rgb":[210,2,142]},{"index":0.4,"rgb":[251,11,123]},{"index":0.47,"rgb":[255,29,97]},{"index":0.53,"rgb":[255,54,69]},{"index":0.6,"rgb":[255,85,46]},{"index":0.67,"rgb":[255,120,34]},{"index":0.73,"rgb":[255,157,37]},{"index":0.8,"rgb":[241,191,57]},{"index":0.87,"rgb":[224,220,93]},{"index":0.93,"rgb":[218,241,142]},{"index":1,"rgb":[227,253,198]}] +}; + +},{}],53:[function(_glvis_,module,exports){ +/* + * Ben Postlethwaite + * January 2013 + * License MIT + */ +'use strict'; + +var colorScale = _glvis_('./colorScale'); +var lerp = _glvis_('lerp') + +module.exports = createColormap; + +function createColormap (spec) { + /* + * Default Options + */ + var indicies, fromrgba, torgba, + nsteps, cmap, colormap, format, + nshades, colors, alpha, i; + + if ( !spec ) spec = {}; + + nshades = (spec.nshades || 72) - 1; + format = spec.format || 'hex'; + + colormap = spec.colormap; + if (!colormap) colormap = 'jet'; + + if (typeof colormap === 'string') { + colormap = colormap.toLowerCase(); + + if (!colorScale[colormap]) { + throw Error(colormap + ' not a supported colorscale'); + } + + cmap = colorScale[colormap]; + + } else if (Array.isArray(colormap)) { + cmap = colormap.slice(); + + } else { + throw Error('unsupported colormap option', colormap); + } + + if (cmap.length > nshades + 1) { + throw new Error( + colormap+' map requires nshades to be at least size '+cmap.length + ); + } + + if (!Array.isArray(spec.alpha)) { + + if (typeof spec.alpha === 'number') { + alpha = [spec.alpha, spec.alpha]; + + } else { + alpha = [1, 1]; + } + + } else if (spec.alpha.length !== 2) { + alpha = [1, 1]; + + } else { + alpha = spec.alpha.slice(); + } + + // map index points from 0..1 to 0..n-1 + indicies = cmap.map(function(c) { + return Math.round(c.index * nshades); + }); + + // Add alpha channel to the map + alpha[0] = Math.min(Math.max(alpha[0], 0), 1); + alpha[1] = Math.min(Math.max(alpha[1], 0), 1); + + var steps = cmap.map(function(c, i) { + var index = cmap[i].index + + var rgba = cmap[i].rgb.slice(); + + // if user supplies their own map use it + if (rgba.length === 4 && rgba[3] >= 0 && rgba[3] <= 1) { + return rgba + } + rgba[3] = alpha[0] + (alpha[1] - alpha[0])*index; + + return rgba + }) + + + /* + * map increasing linear values between indicies to + * linear steps in colorvalues + */ + var colors = [] + for (i = 0; i < indicies.length-1; ++i) { + nsteps = indicies[i+1] - indicies[i]; + fromrgba = steps[i]; + torgba = steps[i+1]; + + for (var j = 0; j < nsteps; j++) { + var amt = j / nsteps + colors.push([ + Math.round(lerp(fromrgba[0], torgba[0], amt)), + Math.round(lerp(fromrgba[1], torgba[1], amt)), + Math.round(lerp(fromrgba[2], torgba[2], amt)), + lerp(fromrgba[3], torgba[3], amt) + ]) + } + } + + //add 1 step as last value + colors.push(cmap[cmap.length - 1].rgb.concat(alpha[1])) + + if (format === 'hex') colors = colors.map( rgb2hex ); + else if (format === 'rgbaString') colors = colors.map( rgbaStr ); + else if (format === 'float') colors = colors.map( rgb2float ); + + return colors; +}; + +function rgb2float (rgba) { + return [ + rgba[0] / 255, + rgba[1] / 255, + rgba[2] / 255, + rgba[3] + ] +} + +function rgb2hex (rgba) { + var dig, hex = '#'; + for (var i = 0; i < 3; ++i) { + dig = rgba[i]; + dig = dig.toString(16); + hex += ('00' + dig).substr( dig.length ); + } + return hex; +} + +function rgbaStr (rgba) { + return 'rgba(' + rgba.join(',') + ')'; +} + +},{"./colorScale":52,"lerp":240}],54:[function(_glvis_,module,exports){ +"use strict" + +module.exports = compareAngle + +var orient = _glvis_("robust-orientation") +var sgn = _glvis_("signum") +var twoSum = _glvis_("two-sum") +var robustProduct = _glvis_("robust-product") +var robustSum = _glvis_("robust-sum") + +function testInterior(a, b, c) { + var x0 = twoSum(a[0], -b[0]) + var y0 = twoSum(a[1], -b[1]) + var x1 = twoSum(c[0], -b[0]) + var y1 = twoSum(c[1], -b[1]) + + var d = robustSum( + robustProduct(x0, x1), + robustProduct(y0, y1)) + + return d[d.length-1] >= 0 +} + +function compareAngle(a, b, c, d) { + var bcd = orient(b, c, d) + if(bcd === 0) { + //Handle degenerate cases + var sabc = sgn(orient(a, b, c)) + var sabd = sgn(orient(a, b, d)) + if(sabc === sabd) { + if(sabc === 0) { + var ic = testInterior(a, b, c) + var id = testInterior(a, b, d) + if(ic === id) { + return 0 + } else if(ic) { + return 1 + } else { + return -1 + } + } + return 0 + } else if(sabd === 0) { + if(sabc > 0) { + return -1 + } else if(testInterior(a, b, d)) { + return -1 + } else { + return 1 + } + } else if(sabc === 0) { + if(sabd > 0) { + return 1 + } else if(testInterior(a, b, c)) { + return 1 + } else { + return -1 + } + } + return sgn(sabd - sabc) + } + var abc = orient(a, b, c) + if(abc > 0) { + if(bcd > 0 && orient(a, b, d) > 0) { + return 1 + } + return -1 + } else if(abc < 0) { + if(bcd > 0 || orient(a, b, d) > 0) { + return 1 + } + return -1 + } else { + var abd = orient(a, b, d) + if(abd > 0) { + return 1 + } else { + if(testInterior(a, b, c)) { + return 1 + } else { + return -1 + } + } + } +} +},{"robust-orientation":284,"robust-product":285,"robust-sum":289,"signum":55,"two-sum":307}],55:[function(_glvis_,module,exports){ +"use strict" + +module.exports = function signum(x) { + if(x < 0) { return -1 } + if(x > 0) { return 1 } + return 0.0 +} +},{}],56:[function(_glvis_,module,exports){ +module.exports = compareCells + +var min = Math.min + +function compareInt(a, b) { + return a - b +} + +function compareCells(a, b) { + var n = a.length + , t = a.length - b.length + if(t) { + return t + } + switch(n) { + case 0: + return 0 + case 1: + return a[0] - b[0] + case 2: + return (a[0]+a[1]-b[0]-b[1]) || + min(a[0],a[1]) - min(b[0],b[1]) + case 3: + var l1 = a[0]+a[1] + , m1 = b[0]+b[1] + t = l1+a[2] - (m1+b[2]) + if(t) { + return t + } + var l0 = min(a[0], a[1]) + , m0 = min(b[0], b[1]) + return min(l0, a[2]) - min(m0, b[2]) || + min(l0+a[2], l1) - min(m0+b[2], m1) + case 4: + var aw=a[0], ax=a[1], ay=a[2], az=a[3] + , bw=b[0], bx=b[1], by=b[2], bz=b[3] + return (aw+ax+ay+az)-(bw+bx+by+bz) || + min(aw,ax,ay,az)-min(bw,bx,by,bz,bw) || + min(aw+ax,aw+ay,aw+az,ax+ay,ax+az,ay+az) - + min(bw+bx,bw+by,bw+bz,bx+by,bx+bz,by+bz) || + min(aw+ax+ay,aw+ax+az,aw+ay+az,ax+ay+az) - + min(bw+bx+by,bw+bx+bz,bw+by+bz,bx+by+bz) + default: + var as = a.slice().sort(compareInt) + var bs = b.slice().sort(compareInt) + for(var i=0; i points[hi][0]) { + hi = i + } + } + if(lo < hi) { + return [[lo], [hi]] + } else if(lo > hi) { + return [[hi], [lo]] + } else { + return [[lo]] + } +} +},{}],60:[function(_glvis_,module,exports){ +'use strict' + +module.exports = convexHull2D + +var monotoneHull = _glvis_('monotone-convex-hull-2d') + +function convexHull2D(points) { + var hull = monotoneHull(points) + var h = hull.length + if(h <= 2) { + return [] + } + var edges = new Array(h) + var a = hull[h-1] + for(var i=0; i= front[k]) { + x += 1 + } + } + c[j] = x + } + } + } + return cells +} + +function convexHullnD(points, d) { + try { + return ich(points, true) + } catch(e) { + //If point set is degenerate, try to find a basis and rerun it + var ah = aff(points) + if(ah.length <= d) { + //No basis, no try + return [] + } + var npoints = permute(points, ah) + var nhull = ich(npoints, true) + return invPermute(nhull, ah) + } +} +},{"affine-hull":10,"incremental-convex-hull":233}],62:[function(_glvis_,module,exports){ +"use strict" + +function dcubicHermite(p0, v0, p1, v1, t, f) { + var dh00 = 6*t*t-6*t, + dh10 = 3*t*t-4*t + 1, + dh01 = -6*t*t+6*t, + dh11 = 3*t*t-2*t + if(p0.length) { + if(!f) { + f = new Array(p0.length) + } + for(var i=p0.length-1; i>=0; --i) { + f[i] = dh00*p0[i] + dh10*v0[i] + dh01*p1[i] + dh11*v1[i] + } + return f + } + return dh00*p0 + dh10*v0 + dh01*p1[i] + dh11*v1 +} + +function cubicHermite(p0, v0, p1, v1, t, f) { + var ti = (t-1), t2 = t*t, ti2 = ti*ti, + h00 = (1+2*t)*ti2, + h10 = t*ti2, + h01 = t2*(3-2*t), + h11 = t2*ti + if(p0.length) { + if(!f) { + f = new Array(p0.length) + } + for(var i=p0.length-1; i>=0; --i) { + f[i] = h00*p0[i] + h10*v0[i] + h01*p1[i] + h11*v1[i] + } + return f + } + return h00*p0 + h10*v0 + h01*p1 + h11*v1 +} + +module.exports = cubicHermite +module.exports.derivative = dcubicHermite +},{}],63:[function(_glvis_,module,exports){ +"use strict" + +var ch = _glvis_("incremental-convex-hull") +var uniq = _glvis_("uniq") + +module.exports = triangulate + +function LiftedPoint(p, i) { + this.point = p + this.index = i +} + +function compareLifted(a, b) { + var ap = a.point + var bp = b.point + var d = ap.length + for(var i=0; i= 2) { + return false + } + } + cell[j] = v + } + return true + }) + } else { + hull = hull.filter(function(cell) { + for(var i=0; i<=d; ++i) { + var v = dindex[cell[i]] + if(v < 0) { + return false + } + cell[i] = v + } + return true + }) + } + + if(d & 1) { + for(var i=0; i>> 31 +} + +module.exports.exponent = function(n) { + var b = module.exports.hi(n) + return ((b<<1) >>> 21) - 1023 +} + +module.exports.fraction = function(n) { + var lo = module.exports.lo(n) + var hi = module.exports.hi(n) + var b = hi & ((1<<20) - 1) + if(hi & 0x7ff00000) { + b += (1<<20) + } + return [lo, b] +} + +module.exports.denormalized = function(n) { + var hi = module.exports.hi(n) + return !(hi & 0x7ff00000) +} +}).call(this)}).call(this,_glvis_("buffer").Buffer) +},{"buffer":3}],65:[function(_glvis_,module,exports){ +"use strict" + +function dupe_array(count, value, i) { + var c = count[i]|0 + if(c <= 0) { + return [] + } + var result = new Array(c), j + if(i === count.length-1) { + for(j=0; j 0) { + return dupe_number(count|0, value) + } + break + case "object": + if(typeof (count.length) === "number") { + return dupe_array(count, value, 0) + } + break + } + return [] +} + +module.exports = dupe +},{}],66:[function(_glvis_,module,exports){ +"use strict" + +module.exports = edgeToAdjacency + +var uniq = _glvis_("uniq") + +function edgeToAdjacency(edges, numVertices) { + var numEdges = edges.length + if(typeof numVertices !== "number") { + numVertices = 0 + for(var i=0; i= n-1) { + var ptr = state.length-1 + var tf = t - time[n-1] + for(var i=0; i= n-1) { + var ptr = state.length-1 + var tf = t - time[n-1] + for(var i=0; i=0; --i) { + if(velocity[--ptr]) { + return false + } + } + return true +} + +proto.jump = function(t) { + var t0 = this.lastT() + var d = this.dimension + if(t < t0 || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var ptr = state.length-this.dimension + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + this._time.push(t0, t) + for(var j=0; j<2; ++j) { + for(var i=0; i0; --i) { + state.push(clamp(lo[i-1], hi[i-1], arguments[i])) + velocity.push(0) + } +} + +proto.push = function(t) { + var t0 = this.lastT() + var d = this.dimension + if(t < t0 || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var ptr = state.length-this.dimension + var dt = t - t0 + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + var sf = (dt > 1e-6) ? 1/dt : 0 + this._time.push(t) + for(var i=d; i>0; --i) { + var xc = clamp(lo[i-1], hi[i-1], arguments[i]) + state.push(xc) + velocity.push((xc - state[ptr++]) * sf) + } +} + +proto.set = function(t) { + var d = this.dimension + if(t < this.lastT() || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + this._time.push(t) + for(var i=d; i>0; --i) { + state.push(clamp(lo[i-1], hi[i-1], arguments[i])) + velocity.push(0) + } +} + +proto.move = function(t) { + var t0 = this.lastT() + var d = this.dimension + if(t <= t0 || arguments.length !== d+1) { + return + } + var state = this._state + var velocity = this._velocity + var statePtr = state.length - this.dimension + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + var dt = t - t0 + var sf = (dt > 1e-6) ? 1/dt : 0.0 + this._time.push(t) + for(var i=d; i>0; --i) { + var dx = arguments[i] + state.push(clamp(lo[i-1], hi[i-1], state[statePtr++] + dx)) + velocity.push(dx * sf) + } +} + +proto.idle = function(t) { + var t0 = this.lastT() + if(t < t0) { + return + } + var d = this.dimension + var state = this._state + var velocity = this._velocity + var statePtr = state.length-d + var bounds = this.bounds + var lo = bounds[0] + var hi = bounds[1] + var dt = t - t0 + this._time.push(t) + for(var i=d-1; i>=0; --i) { + state.push(clamp(lo[i], hi[i], state[statePtr] + dt * velocity[statePtr])) + velocity.push(0) + statePtr += 1 + } +} + +function getZero(d) { + var result = new Array(d) + for(var i=0; i=0; --s) { + var n = n_stack[s] + if(d_stack[s] <= 0) { + n_stack[s] = new RBNode(n._color, n.key, n.value, n_stack[s+1], n.right, n._count+1) + } else { + n_stack[s] = new RBNode(n._color, n.key, n.value, n.left, n_stack[s+1], n._count+1) + } + } + //Rebalance tree using rotations + //console.log("start insert", key, d_stack) + for(var s=n_stack.length-1; s>1; --s) { + var p = n_stack[s-1] + var n = n_stack[s] + if(p._color === BLACK || n._color === BLACK) { + break + } + var pp = n_stack[s-2] + if(pp.left === p) { + if(p.left === n) { + var y = pp.right + if(y && y._color === RED) { + //console.log("LLr") + p._color = BLACK + pp.right = repaint(BLACK, y) + pp._color = RED + s -= 1 + } else { + //console.log("LLb") + pp._color = RED + pp.left = p.right + p._color = BLACK + p.right = pp + n_stack[s-2] = p + n_stack[s-1] = n + recount(pp) + recount(p) + if(s >= 3) { + var ppp = n_stack[s-3] + if(ppp.left === pp) { + ppp.left = p + } else { + ppp.right = p + } + } + break + } + } else { + var y = pp.right + if(y && y._color === RED) { + //console.log("LRr") + p._color = BLACK + pp.right = repaint(BLACK, y) + pp._color = RED + s -= 1 + } else { + //console.log("LRb") + p.right = n.left + pp._color = RED + pp.left = n.right + n._color = BLACK + n.left = p + n.right = pp + n_stack[s-2] = n + n_stack[s-1] = p + recount(pp) + recount(p) + recount(n) + if(s >= 3) { + var ppp = n_stack[s-3] + if(ppp.left === pp) { + ppp.left = n + } else { + ppp.right = n + } + } + break + } + } + } else { + if(p.right === n) { + var y = pp.left + if(y && y._color === RED) { + //console.log("RRr", y.key) + p._color = BLACK + pp.left = repaint(BLACK, y) + pp._color = RED + s -= 1 + } else { + //console.log("RRb") + pp._color = RED + pp.right = p.left + p._color = BLACK + p.left = pp + n_stack[s-2] = p + n_stack[s-1] = n + recount(pp) + recount(p) + if(s >= 3) { + var ppp = n_stack[s-3] + if(ppp.right === pp) { + ppp.right = p + } else { + ppp.left = p + } + } + break + } + } else { + var y = pp.left + if(y && y._color === RED) { + //console.log("RLr") + p._color = BLACK + pp.left = repaint(BLACK, y) + pp._color = RED + s -= 1 + } else { + //console.log("RLb") + p.left = n.right + pp._color = RED + pp.right = n.left + n._color = BLACK + n.right = p + n.left = pp + n_stack[s-2] = n + n_stack[s-1] = p + recount(pp) + recount(p) + recount(n) + if(s >= 3) { + var ppp = n_stack[s-3] + if(ppp.right === pp) { + ppp.right = n + } else { + ppp.left = n + } + } + break + } + } + } + } + //Return new tree + n_stack[0]._color = BLACK + return new RedBlackTree(cmp, n_stack[0]) +} + + +//Visit all nodes inorder +function doVisitFull(visit, node) { + if(node.left) { + var v = doVisitFull(visit, node.left) + if(v) { return v } + } + var v = visit(node.key, node.value) + if(v) { return v } + if(node.right) { + return doVisitFull(visit, node.right) + } +} + +//Visit half nodes in order +function doVisitHalf(lo, compare, visit, node) { + var l = compare(lo, node.key) + if(l <= 0) { + if(node.left) { + var v = doVisitHalf(lo, compare, visit, node.left) + if(v) { return v } + } + var v = visit(node.key, node.value) + if(v) { return v } + } + if(node.right) { + return doVisitHalf(lo, compare, visit, node.right) + } +} + +//Visit all nodes within a range +function doVisit(lo, hi, compare, visit, node) { + var l = compare(lo, node.key) + var h = compare(hi, node.key) + var v + if(l <= 0) { + if(node.left) { + v = doVisit(lo, hi, compare, visit, node.left) + if(v) { return v } + } + if(h > 0) { + v = visit(node.key, node.value) + if(v) { return v } + } + } + if(h > 0 && node.right) { + return doVisit(lo, hi, compare, visit, node.right) + } +} + + +proto.forEach = function rbTreeForEach(visit, lo, hi) { + if(!this.root) { + return + } + switch(arguments.length) { + case 1: + return doVisitFull(visit, this.root) + break + + case 2: + return doVisitHalf(lo, this._compare, visit, this.root) + break + + case 3: + if(this._compare(lo, hi) >= 0) { + return + } + return doVisit(lo, hi, this._compare, visit, this.root) + break + } +} + +//First item in list +Object.defineProperty(proto, "begin", { + get: function() { + var stack = [] + var n = this.root + while(n) { + stack.push(n) + n = n.left + } + return new RedBlackTreeIterator(this, stack) + } +}) + +//Last item in list +Object.defineProperty(proto, "end", { + get: function() { + var stack = [] + var n = this.root + while(n) { + stack.push(n) + n = n.right + } + return new RedBlackTreeIterator(this, stack) + } +}) + +//Find the ith item in the tree +proto.at = function(idx) { + if(idx < 0) { + return new RedBlackTreeIterator(this, []) + } + var n = this.root + var stack = [] + while(true) { + stack.push(n) + if(n.left) { + if(idx < n.left._count) { + n = n.left + continue + } + idx -= n.left._count + } + if(!idx) { + return new RedBlackTreeIterator(this, stack) + } + idx -= 1 + if(n.right) { + if(idx >= n.right._count) { + break + } + n = n.right + } else { + break + } + } + return new RedBlackTreeIterator(this, []) +} + +proto.ge = function(key) { + var cmp = this._compare + var n = this.root + var stack = [] + var last_ptr = 0 + while(n) { + var d = cmp(key, n.key) + stack.push(n) + if(d <= 0) { + last_ptr = stack.length + } + if(d <= 0) { + n = n.left + } else { + n = n.right + } + } + stack.length = last_ptr + return new RedBlackTreeIterator(this, stack) +} + +proto.gt = function(key) { + var cmp = this._compare + var n = this.root + var stack = [] + var last_ptr = 0 + while(n) { + var d = cmp(key, n.key) + stack.push(n) + if(d < 0) { + last_ptr = stack.length + } + if(d < 0) { + n = n.left + } else { + n = n.right + } + } + stack.length = last_ptr + return new RedBlackTreeIterator(this, stack) +} + +proto.lt = function(key) { + var cmp = this._compare + var n = this.root + var stack = [] + var last_ptr = 0 + while(n) { + var d = cmp(key, n.key) + stack.push(n) + if(d > 0) { + last_ptr = stack.length + } + if(d <= 0) { + n = n.left + } else { + n = n.right + } + } + stack.length = last_ptr + return new RedBlackTreeIterator(this, stack) +} + +proto.le = function(key) { + var cmp = this._compare + var n = this.root + var stack = [] + var last_ptr = 0 + while(n) { + var d = cmp(key, n.key) + stack.push(n) + if(d >= 0) { + last_ptr = stack.length + } + if(d < 0) { + n = n.left + } else { + n = n.right + } + } + stack.length = last_ptr + return new RedBlackTreeIterator(this, stack) +} + +//Finds the item with key if it exists +proto.find = function(key) { + var cmp = this._compare + var n = this.root + var stack = [] + while(n) { + var d = cmp(key, n.key) + stack.push(n) + if(d === 0) { + return new RedBlackTreeIterator(this, stack) + } + if(d <= 0) { + n = n.left + } else { + n = n.right + } + } + return new RedBlackTreeIterator(this, []) +} + +//Removes item with key from tree +proto.remove = function(key) { + var iter = this.find(key) + if(iter) { + return iter.remove() + } + return this +} + +//Returns the item at `key` +proto.get = function(key) { + var cmp = this._compare + var n = this.root + while(n) { + var d = cmp(key, n.key) + if(d === 0) { + return n.value + } + if(d <= 0) { + n = n.left + } else { + n = n.right + } + } + return +} + +//Iterator for red black tree +function RedBlackTreeIterator(tree, stack) { + this.tree = tree + this._stack = stack +} + +var iproto = RedBlackTreeIterator.prototype + +//Test if iterator is valid +Object.defineProperty(iproto, "valid", { + get: function() { + return this._stack.length > 0 + } +}) + +//Node of the iterator +Object.defineProperty(iproto, "node", { + get: function() { + if(this._stack.length > 0) { + return this._stack[this._stack.length-1] + } + return null + }, + enumerable: true +}) + +//Makes a copy of an iterator +iproto.clone = function() { + return new RedBlackTreeIterator(this.tree, this._stack.slice()) +} + +//Swaps two nodes +function swapNode(n, v) { + n.key = v.key + n.value = v.value + n.left = v.left + n.right = v.right + n._color = v._color + n._count = v._count +} + +//Fix up a double black node in a tree +function fixDoubleBlack(stack) { + var n, p, s, z + for(var i=stack.length-1; i>=0; --i) { + n = stack[i] + if(i === 0) { + n._color = BLACK + return + } + //console.log("visit node:", n.key, i, stack[i].key, stack[i-1].key) + p = stack[i-1] + if(p.left === n) { + //console.log("left child") + s = p.right + if(s.right && s.right._color === RED) { + //console.log("case 1: right sibling child red") + s = p.right = cloneNode(s) + z = s.right = cloneNode(s.right) + p.right = s.left + s.left = p + s.right = z + s._color = p._color + n._color = BLACK + p._color = BLACK + z._color = BLACK + recount(p) + recount(s) + if(i > 1) { + var pp = stack[i-2] + if(pp.left === p) { + pp.left = s + } else { + pp.right = s + } + } + stack[i-1] = s + return + } else if(s.left && s.left._color === RED) { + //console.log("case 1: left sibling child red") + s = p.right = cloneNode(s) + z = s.left = cloneNode(s.left) + p.right = z.left + s.left = z.right + z.left = p + z.right = s + z._color = p._color + p._color = BLACK + s._color = BLACK + n._color = BLACK + recount(p) + recount(s) + recount(z) + if(i > 1) { + var pp = stack[i-2] + if(pp.left === p) { + pp.left = z + } else { + pp.right = z + } + } + stack[i-1] = z + return + } + if(s._color === BLACK) { + if(p._color === RED) { + //console.log("case 2: black sibling, red parent", p.right.value) + p._color = BLACK + p.right = repaint(RED, s) + return + } else { + //console.log("case 2: black sibling, black parent", p.right.value) + p.right = repaint(RED, s) + continue + } + } else { + //console.log("case 3: red sibling") + s = cloneNode(s) + p.right = s.left + s.left = p + s._color = p._color + p._color = RED + recount(p) + recount(s) + if(i > 1) { + var pp = stack[i-2] + if(pp.left === p) { + pp.left = s + } else { + pp.right = s + } + } + stack[i-1] = s + stack[i] = p + if(i+1 < stack.length) { + stack[i+1] = n + } else { + stack.push(n) + } + i = i+2 + } + } else { + //console.log("right child") + s = p.left + if(s.left && s.left._color === RED) { + //console.log("case 1: left sibling child red", p.value, p._color) + s = p.left = cloneNode(s) + z = s.left = cloneNode(s.left) + p.left = s.right + s.right = p + s.left = z + s._color = p._color + n._color = BLACK + p._color = BLACK + z._color = BLACK + recount(p) + recount(s) + if(i > 1) { + var pp = stack[i-2] + if(pp.right === p) { + pp.right = s + } else { + pp.left = s + } + } + stack[i-1] = s + return + } else if(s.right && s.right._color === RED) { + //console.log("case 1: right sibling child red") + s = p.left = cloneNode(s) + z = s.right = cloneNode(s.right) + p.left = z.right + s.right = z.left + z.right = p + z.left = s + z._color = p._color + p._color = BLACK + s._color = BLACK + n._color = BLACK + recount(p) + recount(s) + recount(z) + if(i > 1) { + var pp = stack[i-2] + if(pp.right === p) { + pp.right = z + } else { + pp.left = z + } + } + stack[i-1] = z + return + } + if(s._color === BLACK) { + if(p._color === RED) { + //console.log("case 2: black sibling, red parent") + p._color = BLACK + p.left = repaint(RED, s) + return + } else { + //console.log("case 2: black sibling, black parent") + p.left = repaint(RED, s) + continue + } + } else { + //console.log("case 3: red sibling") + s = cloneNode(s) + p.left = s.right + s.right = p + s._color = p._color + p._color = RED + recount(p) + recount(s) + if(i > 1) { + var pp = stack[i-2] + if(pp.right === p) { + pp.right = s + } else { + pp.left = s + } + } + stack[i-1] = s + stack[i] = p + if(i+1 < stack.length) { + stack[i+1] = n + } else { + stack.push(n) + } + i = i+2 + } + } + } +} + +//Removes item at iterator from tree +iproto.remove = function() { + var stack = this._stack + if(stack.length === 0) { + return this.tree + } + //First copy path to node + var cstack = new Array(stack.length) + var n = stack[stack.length-1] + cstack[cstack.length-1] = new RBNode(n._color, n.key, n.value, n.left, n.right, n._count) + for(var i=stack.length-2; i>=0; --i) { + var n = stack[i] + if(n.left === stack[i+1]) { + cstack[i] = new RBNode(n._color, n.key, n.value, cstack[i+1], n.right, n._count) + } else { + cstack[i] = new RBNode(n._color, n.key, n.value, n.left, cstack[i+1], n._count) + } + } + + //Get node + n = cstack[cstack.length-1] + //console.log("start remove: ", n.value) + + //If not leaf, then swap with previous node + if(n.left && n.right) { + //console.log("moving to leaf") + + //First walk to previous leaf + var split = cstack.length + n = n.left + while(n.right) { + cstack.push(n) + n = n.right + } + //Copy path to leaf + var v = cstack[split-1] + cstack.push(new RBNode(n._color, v.key, v.value, n.left, n.right, n._count)) + cstack[split-1].key = n.key + cstack[split-1].value = n.value + + //Fix up stack + for(var i=cstack.length-2; i>=split; --i) { + n = cstack[i] + cstack[i] = new RBNode(n._color, n.key, n.value, n.left, cstack[i+1], n._count) + } + cstack[split-1].left = cstack[split] + } + //console.log("stack=", cstack.map(function(v) { return v.value })) + + //Remove leaf node + n = cstack[cstack.length-1] + if(n._color === RED) { + //Easy case: removing red leaf + //console.log("RED leaf") + var p = cstack[cstack.length-2] + if(p.left === n) { + p.left = null + } else if(p.right === n) { + p.right = null + } + cstack.pop() + for(var i=0; i 0) { + return this._stack[this._stack.length-1].key + } + return + }, + enumerable: true +}) + +//Returns value +Object.defineProperty(iproto, "value", { + get: function() { + if(this._stack.length > 0) { + return this._stack[this._stack.length-1].value + } + return + }, + enumerable: true +}) + + +//Returns the position of this iterator in the sorted list +Object.defineProperty(iproto, "index", { + get: function() { + var idx = 0 + var stack = this._stack + if(stack.length === 0) { + var r = this.tree.root + if(r) { + return r._count + } + return 0 + } else if(stack[stack.length-1].left) { + idx = stack[stack.length-1].left._count + } + for(var s=stack.length-2; s>=0; --s) { + if(stack[s+1] === stack[s].right) { + ++idx + if(stack[s].left) { + idx += stack[s].left._count + } + } + } + return idx + }, + enumerable: true +}) + +//Advances iterator to next element in list +iproto.next = function() { + var stack = this._stack + if(stack.length === 0) { + return + } + var n = stack[stack.length-1] + if(n.right) { + n = n.right + while(n) { + stack.push(n) + n = n.left + } + } else { + stack.pop() + while(stack.length > 0 && stack[stack.length-1].right === n) { + n = stack[stack.length-1] + stack.pop() + } + } +} + +//Checks if iterator is at end of tree +Object.defineProperty(iproto, "hasNext", { + get: function() { + var stack = this._stack + if(stack.length === 0) { + return false + } + if(stack[stack.length-1].right) { + return true + } + for(var s=stack.length-1; s>0; --s) { + if(stack[s-1].left === stack[s]) { + return true + } + } + return false + } +}) + +//Update value +iproto.update = function(value) { + var stack = this._stack + if(stack.length === 0) { + throw new Error("Can't update empty node!") + } + var cstack = new Array(stack.length) + var n = stack[stack.length-1] + cstack[cstack.length-1] = new RBNode(n._color, n.key, value, n.left, n.right, n._count) + for(var i=stack.length-2; i>=0; --i) { + n = stack[i] + if(n.left === stack[i+1]) { + cstack[i] = new RBNode(n._color, n.key, n.value, cstack[i+1], n.right, n._count) + } else { + cstack[i] = new RBNode(n._color, n.key, n.value, n.left, cstack[i+1], n._count) + } + } + return new RedBlackTree(this.tree._compare, cstack[0]) +} + +//Moves iterator backward one element +iproto.prev = function() { + var stack = this._stack + if(stack.length === 0) { + return + } + var n = stack[stack.length-1] + if(n.left) { + n = n.left + while(n) { + stack.push(n) + n = n.right + } + } else { + stack.pop() + while(stack.length > 0 && stack[stack.length-1].left === n) { + n = stack[stack.length-1] + stack.pop() + } + } +} + +//Checks if iterator is at start of tree +Object.defineProperty(iproto, "hasPrev", { + get: function() { + var stack = this._stack + if(stack.length === 0) { + return false + } + if(stack[stack.length-1].left) { + return true + } + for(var s=stack.length-1; s>0; --s) { + if(stack[s-1].right === stack[s]) { + return true + } + } + return false + } +}) + +//Default comparison function +function defaultCompare(a, b) { + if(a < b) { + return -1 + } + if(a > b) { + return 1 + } + return 0 +} + +//Build a tree +function createRBTree(compare) { + return new RedBlackTree(compare || defaultCompare, null) +} +},{}],70:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createAxes + +var createText = _glvis_('./lib/text.js') +var createLines = _glvis_('./lib/lines.js') +var createBackground = _glvis_('./lib/background.js') +var getCubeProperties = _glvis_('./lib/cube.js') +var Ticks = _glvis_('./lib/ticks.js') + +var identity = new Float32Array([ + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1]) + +function copyVec3(a, b) { + a[0] = b[0] + a[1] = b[1] + a[2] = b[2] + return a +} + +function Axes(gl) { + this.gl = gl + + this.pixelRatio = 1 + + this.bounds = [ [-10, -10, -10], + [ 10, 10, 10] ] + this.ticks = [ [], [], [] ] + this.autoTicks = true + this.tickSpacing = [ 1, 1, 1 ] + + this.tickEnable = [ true, true, true ] + this.tickFont = [ 'sans-serif', 'sans-serif', 'sans-serif' ] + this.tickSize = [ 12, 12, 12 ] + this.tickAngle = [ 0, 0, 0 ] + this.tickAlign = [ 'auto', 'auto', 'auto' ] + this.tickColor = [ [0,0,0,1], [0,0,0,1], [0,0,0,1] ] + this.tickPad = [ 10, 10, 10 ] + + this.lastCubeProps = { + cubeEdges: [0,0,0], + axis: [0,0,0] + } + + this.labels = [ 'x', 'y', 'z' ] + this.labelEnable = [ true, true, true ] + this.labelFont = 'sans-serif' + this.labelSize = [ 20, 20, 20 ] + this.labelAngle = [ 0, 0, 0 ] + this.labelAlign = [ 'auto', 'auto', 'auto' ] + this.labelColor = [ [0,0,0,1], [0,0,0,1], [0,0,0,1] ] + this.labelPad = [ 10, 10, 10 ] + + this.lineEnable = [ true, true, true ] + this.lineMirror = [ false, false, false ] + this.lineWidth = [ 1, 1, 1 ] + this.lineColor = [ [0,0,0,1], [0,0,0,1], [0,0,0,1] ] + + this.lineTickEnable = [ true, true, true ] + this.lineTickMirror = [ false, false, false ] + this.lineTickLength = [ 0, 0, 0 ] + this.lineTickWidth = [ 1, 1, 1 ] + this.lineTickColor = [ [0,0,0,1], [0,0,0,1], [0,0,0,1] ] + + this.gridEnable = [ true, true, true ] + this.gridWidth = [ 1, 1, 1 ] + this.gridColor = [ [0,0,0,1], [0,0,0,1], [0,0,0,1] ] + + this.zeroEnable = [ true, true, true ] + this.zeroLineColor = [ [0,0,0,1], [0,0,0,1], [0,0,0,1] ] + this.zeroLineWidth = [ 2, 2, 2 ] + + this.backgroundEnable = [ false, false, false ] + this.backgroundColor = [ [0.8, 0.8, 0.8, 0.5], + [0.8, 0.8, 0.8, 0.5], + [0.8, 0.8, 0.8, 0.5] ] + + this._firstInit = true + this._text = null + this._lines = null + this._background = createBackground(gl) +} + +var proto = Axes.prototype + +proto.update = function(options) { + options = options || {} + + //Option parsing helper functions + function parseOption(nest, cons, name) { + if(name in options) { + var opt = options[name] + var prev = this[name] + var next + if(nest ? (Array.isArray(opt) && Array.isArray(opt[0])) : + Array.isArray(opt) ) { + this[name] = next = [ cons(opt[0]), cons(opt[1]), cons(opt[2]) ] + } else { + this[name] = next = [ cons(opt), cons(opt), cons(opt) ] + } + for(var i=0; i<3; ++i) { + if(next[i] !== prev[i]) { + return true + } + } + } + return false + } + + var NUMBER = parseOption.bind(this, false, Number) + var BOOLEAN = parseOption.bind(this, false, Boolean) + var STRING = parseOption.bind(this, false, String) + var COLOR = parseOption.bind(this, true, function(v) { + if(Array.isArray(v)) { + if(v.length === 3) { + return [ +v[0], +v[1], +v[2], 1.0 ] + } else if(v.length === 4) { + return [ +v[0], +v[1], +v[2], +v[3] ] + } + } + return [ 0, 0, 0, 1 ] + }) + + //Tick marks and bounds + var nextTicks + var ticksUpdate = false + var boundsChanged = false + if('bounds' in options) { + var bounds = options.bounds +i_loop: + for(var i=0; i<2; ++i) { + for(var j=0; j<3; ++j) { + if(bounds[i][j] !== this.bounds[i][j]) { + boundsChanged = true + } + this.bounds[i][j] = bounds[i][j] + } + } + } + if('ticks' in options) { + nextTicks = options.ticks + ticksUpdate = true + this.autoTicks = false + for(var i=0; i<3; ++i) { + this.tickSpacing[i] = 0.0 + } + } else if(NUMBER('tickSpacing')) { + this.autoTicks = true + boundsChanged = true + } + + if(this._firstInit) { + if(!('ticks' in options || 'tickSpacing' in options)) { + this.autoTicks = true + } + + //Force tick recomputation on first update + boundsChanged = true + ticksUpdate = true + this._firstInit = false + } + + if(boundsChanged && this.autoTicks) { + nextTicks = Ticks.create(this.bounds, this.tickSpacing) + ticksUpdate = true + } + + //Compare next ticks to previous ticks, only update if needed + if(ticksUpdate) { + for(var i=0; i<3; ++i) { + nextTicks[i].sort(function(a,b) { + return a.x-b.x + }) + } + if(Ticks.equal(nextTicks, this.ticks)) { + ticksUpdate = false + } else { + this.ticks = nextTicks + } + } + + //Parse tick properties + BOOLEAN('tickEnable') + if(STRING('tickFont')) { + ticksUpdate = true //If font changes, must rebuild vbo + } + NUMBER('tickSize') + NUMBER('tickAngle') + NUMBER('tickPad') + COLOR('tickColor') + + //Axis labels + var labelUpdate = STRING('labels') + if(STRING('labelFont')) { + labelUpdate = true + } + BOOLEAN('labelEnable') + NUMBER('labelSize') + NUMBER('labelPad') + COLOR('labelColor') + + //Axis lines + BOOLEAN('lineEnable') + BOOLEAN('lineMirror') + NUMBER('lineWidth') + COLOR('lineColor') + + //Axis line ticks + BOOLEAN('lineTickEnable') + BOOLEAN('lineTickMirror') + NUMBER('lineTickLength') + NUMBER('lineTickWidth') + COLOR('lineTickColor') + + //Grid lines + BOOLEAN('gridEnable') + NUMBER('gridWidth') + COLOR('gridColor') + + //Zero line + BOOLEAN('zeroEnable') + COLOR('zeroLineColor') + NUMBER('zeroLineWidth') + + //Background + BOOLEAN('backgroundEnable') + COLOR('backgroundColor') + + //Update text if necessary + if(!this._text) { + this._text = createText( + this.gl, + this.bounds, + this.labels, + this.labelFont, + this.ticks, + this.tickFont) + } else if(this._text && (labelUpdate || ticksUpdate)) { + this._text.update( + this.bounds, + this.labels, + this.labelFont, + this.ticks, + this.tickFont) + } + + //Update lines if necessary + if(this._lines && ticksUpdate) { + this._lines.dispose() + this._lines = null + } + if(!this._lines) { + this._lines = createLines(this.gl, this.bounds, this.ticks) + } +} + +function OffsetInfo() { + this.primalOffset = [0,0,0] + this.primalMinor = [0,0,0] + this.mirrorOffset = [0,0,0] + this.mirrorMinor = [0,0,0] +} + +var LINE_OFFSET = [ new OffsetInfo(), new OffsetInfo(), new OffsetInfo() ] + +function computeLineOffset(result, i, bounds, cubeEdges, cubeAxis) { + var primalOffset = result.primalOffset + var primalMinor = result.primalMinor + var dualOffset = result.mirrorOffset + var dualMinor = result.mirrorMinor + var e = cubeEdges[i] + + //Calculate offsets + for(var j=0; j<3; ++j) { + if(i === j) { + continue + } + var a = primalOffset, + b = dualOffset, + c = primalMinor, + d = dualMinor + if(e & (1< 0) { + c[j] = -1 + d[j] = 0 + } else { + c[j] = 0 + d[j] = +1 + } + } +} + +var CUBE_ENABLE = [0,0,0] +var DEFAULT_PARAMS = { + model: identity, + view: identity, + projection: identity, + _ortho: false +} + +proto.isOpaque = function() { + return true +} + +proto.isTransparent = function() { + return false +} + +proto.drawTransparent = function(params) {} + +var ALIGN_OPTION_AUTO = 0 // i.e. as defined in the shader the text would rotate to stay upwards range: [-90,90] + +var PRIMAL_MINOR = [0,0,0] +var MIRROR_MINOR = [0,0,0] +var PRIMAL_OFFSET = [0,0,0] + +proto.draw = function(params) { + params = params || DEFAULT_PARAMS + + var gl = this.gl + + //Geometry for camera and axes + var model = params.model || identity + var view = params.view || identity + var projection = params.projection || identity + var bounds = this.bounds + var isOrtho = params._ortho || false + + //Unpack axis info + var cubeParams = getCubeProperties(model, view, projection, bounds, isOrtho) + var cubeEdges = cubeParams.cubeEdges + var cubeAxis = cubeParams.axis + + var cx = view[12] + var cy = view[13] + var cz = view[14] + var cw = view[15] + + var orthoFix = (isOrtho) ? 2 : 1 // double up padding for orthographic ticks & labels + var pixelScaleF = orthoFix * this.pixelRatio * (projection[3]*cx + projection[7]*cy + projection[11]*cz + projection[15]*cw) / gl.drawingBufferHeight + + for(var i=0; i<3; ++i) { + this.lastCubeProps.cubeEdges[i] = cubeEdges[i] + this.lastCubeProps.axis[i] = cubeAxis[i] + } + + //Compute axis info + var lineOffset = LINE_OFFSET + for(var i=0; i<3; ++i) { + computeLineOffset( + LINE_OFFSET[i], + i, + this.bounds, + cubeEdges, + cubeAxis) + } + + //Set up state parameters + var gl = this.gl + + //Draw background first + var cubeEnable = CUBE_ENABLE + for(var i=0; i<3; ++i) { + if(this.backgroundEnable[i]) { + cubeEnable[i] = cubeAxis[i] + } else { + cubeEnable[i] = 0 + } + } + + this._background.draw( + model, + view, + projection, + bounds, + cubeEnable, + this.backgroundColor) + + //Draw lines + this._lines.bind( + model, + view, + projection, + this) + + //First draw grid lines and zero lines + for(var i=0; i<3; ++i) { + var x = [0,0,0] + if(cubeAxis[i] > 0) { + x[i] = bounds[1][i] + } else { + x[i] = bounds[0][i] + } + + //Draw grid lines + for(var j=0; j<2; ++j) { + var u = (i + 1 + j) % 3 + var v = (i + 1 + (j^1)) % 3 + if(this.gridEnable[u]) { + this._lines.drawGrid(u, v, this.bounds, x, this.gridColor[u], this.gridWidth[u]*this.pixelRatio) + } + } + + //Draw zero lines (need to do this AFTER all grid lines are drawn) + for(var j=0; j<2; ++j) { + var u = (i + 1 + j) % 3 + var v = (i + 1 + (j^1)) % 3 + if(this.zeroEnable[v]) { + //Check if zero line in bounds + if(Math.min(bounds[0][v], bounds[1][v]) <= 0 && Math.max(bounds[0][v], bounds[1][v]) >= 0) { + this._lines.drawZero(u, v, this.bounds, x, this.zeroLineColor[v], this.zeroLineWidth[v]*this.pixelRatio) + } + } + } + } + + //Then draw axis lines and tick marks + for(var i=0; i<3; ++i) { + + //Draw axis lines + if(this.lineEnable[i]) { + this._lines.drawAxisLine(i, this.bounds, lineOffset[i].primalOffset, this.lineColor[i], this.lineWidth[i]*this.pixelRatio) + } + if(this.lineMirror[i]) { + this._lines.drawAxisLine(i, this.bounds, lineOffset[i].mirrorOffset, this.lineColor[i], this.lineWidth[i]*this.pixelRatio) + } + + //Compute minor axes + var primalMinor = copyVec3(PRIMAL_MINOR, lineOffset[i].primalMinor) + var mirrorMinor = copyVec3(MIRROR_MINOR, lineOffset[i].mirrorMinor) + var tickLength = this.lineTickLength + for(var j=0; j<3; ++j) { + var scaleFactor = pixelScaleF / model[5*j] + primalMinor[j] *= tickLength[j] * scaleFactor + mirrorMinor[j] *= tickLength[j] * scaleFactor + } + + + + //Draw axis line ticks + if(this.lineTickEnable[i]) { + this._lines.drawAxisTicks(i, lineOffset[i].primalOffset, primalMinor, this.lineTickColor[i], this.lineTickWidth[i]*this.pixelRatio) + } + if(this.lineTickMirror[i]) { + this._lines.drawAxisTicks(i, lineOffset[i].mirrorOffset, mirrorMinor, this.lineTickColor[i], this.lineTickWidth[i]*this.pixelRatio) + } + } + this._lines.unbind() + + //Draw text sprites + this._text.bind( + model, + view, + projection, + this.pixelRatio) + + var alignOpt // options in shader are from this list {-1, 0, 1, 2, 3, ..., n} + // -1: backward compatible + // 0: raw data + // 1: auto align, free angles + // 2: auto align, horizontal or vertical + //3-n: auto align, round to n directions e.g. 12 -> round to angles with 30-degree steps + + var hv_ratio = 0.5 // can have an effect on the ratio between horizontals and verticals when using option 2 + + var enableAlign + var alignDir + + function alignTo(i) { + alignDir = [0,0,0] + alignDir[i] = 1 + } + + function solveTickAlignments(i, minor, major) { + + var i1 = (i + 1) % 3 + var i2 = (i + 2) % 3 + + var A = minor[i1] + var B = minor[i2] + var C = major[i1] + var D = major[i2] + + if ((A > 0) && (D > 0)) { alignTo(i1); return; } + else if ((A > 0) && (D < 0)) { alignTo(i1); return; } + else if ((A < 0) && (D > 0)) { alignTo(i1); return; } + else if ((A < 0) && (D < 0)) { alignTo(i1); return; } + else if ((B > 0) && (C > 0)) { alignTo(i2); return; } + else if ((B > 0) && (C < 0)) { alignTo(i2); return; } + else if ((B < 0) && (C > 0)) { alignTo(i2); return; } + else if ((B < 0) && (C < 0)) { alignTo(i2); return; } + } + + for(var i=0; i<3; ++i) { + + var minor = lineOffset[i].primalMinor + var major = lineOffset[i].mirrorMinor + + var offset = copyVec3(PRIMAL_OFFSET, lineOffset[i].primalOffset) + + for(var j=0; j<3; ++j) { + if(this.lineTickEnable[i]) { + offset[j] += pixelScaleF * minor[j] * Math.max(this.lineTickLength[j], 0) / model[5*j] + } + } + + var axis = [0,0,0] + axis[i] = 1 + + //Draw tick text + if(this.tickEnable[i]) { + + if(this.tickAngle[i] === -3600) { + this.tickAngle[i] = 0 + this.tickAlign[i] = 'auto' + } else { + this.tickAlign[i] = -1 + } + + enableAlign = 1; + + alignOpt = [this.tickAlign[i], hv_ratio, enableAlign] + if(alignOpt[0] === 'auto') alignOpt[0] = ALIGN_OPTION_AUTO + else alignOpt[0] = parseInt('' + alignOpt[0]) + + alignDir = [0,0,0] + solveTickAlignments(i, minor, major) + + //Add tick padding + for(var j=0; j<3; ++j) { + offset[j] += pixelScaleF * minor[j] * this.tickPad[j] / model[5*j] + } + + //Draw axis + this._text.drawTicks( + i, + this.tickSize[i], + this.tickAngle[i], + offset, + this.tickColor[i], + axis, + alignDir, + alignOpt) + } + + //Draw labels + if(this.labelEnable[i]) { + + enableAlign = 0 + alignDir = [0,0,0] + if(this.labels[i].length > 4) { // for large label axis enable alignDir to axis + alignTo(i) + enableAlign = 1 + } + + alignOpt = [this.labelAlign[i], hv_ratio, enableAlign] + if(alignOpt[0] === 'auto') alignOpt[0] = ALIGN_OPTION_AUTO + else alignOpt[0] = parseInt('' + alignOpt[0]) + + //Add label padding + for(var j=0; j<3; ++j) { + offset[j] += pixelScaleF * minor[j] * this.labelPad[j] / model[5*j] + } + offset[i] += 0.5 * (bounds[0][i] + bounds[1][i]) + + //Draw axis + this._text.drawLabel( + i, + this.labelSize[i], + this.labelAngle[i], + offset, + this.labelColor[i], + [0,0,0], + alignDir, + alignOpt) + } + } + + this._text.unbind() +} + +proto.dispose = function() { + this._text.dispose() + this._lines.dispose() + this._background.dispose() + this._lines = null + this._text = null + this._background = null + this.gl = null +} + +function createAxes(gl, options) { + var axes = new Axes(gl) + axes.update(options) + return axes +} + +},{"./lib/background.js":71,"./lib/cube.js":72,"./lib/lines.js":73,"./lib/text.js":75,"./lib/ticks.js":76}],71:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createBackgroundCube + +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var createShader = _glvis_('./shaders').bg + +function BackgroundCube(gl, buffer, vao, shader) { + this.gl = gl + this.buffer = buffer + this.vao = vao + this.shader = shader +} + +var proto = BackgroundCube.prototype + +proto.draw = function(model, view, projection, bounds, enable, colors) { + var needsBG = false + for(var i=0; i<3; ++i) { + needsBG = needsBG || enable[i] + } + if(!needsBG) { + return + } + + var gl = this.gl + + gl.enable(gl.POLYGON_OFFSET_FILL) + gl.polygonOffset(1, 2) + + this.shader.bind() + this.shader.uniforms = { + model: model, + view: view, + projection: projection, + bounds: bounds, + enable: enable, + colors: colors + } + this.vao.bind() + this.vao.draw(this.gl.TRIANGLES, 36) + this.vao.unbind() + + gl.disable(gl.POLYGON_OFFSET_FILL) +} + +proto.dispose = function() { + this.vao.dispose() + this.buffer.dispose() + this.shader.dispose() +} + +function createBackgroundCube(gl) { + //Create cube vertices + var vertices = [] + var indices = [] + var ptr = 0 + for(var d=0; d<3; ++d) { + var u = (d+1) % 3 + var v = (d+2) % 3 + var x = [0,0,0] + var c = [0,0,0] + for(var s=-1; s<=1; s+=2) { + indices.push(ptr, ptr+2, ptr+1, + ptr+1, ptr+2, ptr+3) + x[d] = s + c[d] = s + for(var i=-1; i<=1; i+=2) { + x[u] = i + for(var j=-1; j<=1; j+=2) { + x[v] = j + vertices.push(x[0], x[1], x[2], + c[0], c[1], c[2]) + ptr += 1 + } + } + //Swap u and v + var tt = u + u = v + v = tt + } + } + + //Allocate buffer and vertex array + var buffer = createBuffer(gl, new Float32Array(vertices)) + var elements = createBuffer(gl, new Uint16Array(indices), gl.ELEMENT_ARRAY_BUFFER) + var vao = createVAO(gl, [ + { + buffer: buffer, + type: gl.FLOAT, + size: 3, + offset: 0, + stride: 24 + }, + { + buffer: buffer, + type: gl.FLOAT, + size: 3, + offset: 12, + stride: 24 + } + ], elements) + + //Create shader object + var shader = createShader(gl) + shader.attributes.position.location = 0 + shader.attributes.normal.location = 1 + + return new BackgroundCube(gl, buffer, vao, shader) +} + +},{"./shaders":74,"gl-buffer":78,"gl-vao":150}],72:[function(_glvis_,module,exports){ +"use strict" + +module.exports = getCubeEdges + +var bits = _glvis_('bit-twiddle') +var multiply = _glvis_('gl-mat4/multiply') +var splitPoly = _glvis_('split-polygon') +var orient = _glvis_('robust-orientation') + +var mvp = new Array(16) +var pCubeVerts = new Array(8) +var cubeVerts = new Array(8) +var x = new Array(3) +var zero3 = [0,0,0] + +;(function() { + for(var i=0; i<8; ++i) { + pCubeVerts[i] =[1,1,1,1] + cubeVerts[i] = [1,1,1] + } +})() + + +function transformHg(result, x, mat) { + for(var i=0; i<4; ++i) { + result[i] = mat[12+i] + for(var j=0; j<3; ++j) { + result[i] += x[j]*mat[4*j+i] + } + } +} + +var FRUSTUM_PLANES = [ + [ 0, 0, 1, 0, 0], + [ 0, 0,-1, 1, 0], + [ 0,-1, 0, 1, 0], + [ 0, 1, 0, 1, 0], + [-1, 0, 0, 1, 0], + [ 1, 0, 0, 1, 0] +] + +function polygonArea(p) { + for(var i=0; i o0) { + closest |= 1< o0) { + closest |= 1< cubeVerts[i][1]) { + bottom = i + } + } + + //Find left/right neighbors of bottom vertex + var left = -1 + for(var i=0; i<3; ++i) { + var idx = bottom ^ (1< cubeVerts[right][0]) { + right = idx + } + } + + //Determine edge axis coordinates + var cubeEdges = CUBE_EDGES + cubeEdges[0] = cubeEdges[1] = cubeEdges[2] = 0 + cubeEdges[bits.log2(left^bottom)] = bottom&left + cubeEdges[bits.log2(bottom^right)] = bottom&right + var top = right ^ 7 + if(top === closest || top === farthest) { + top = left ^ 7 + cubeEdges[bits.log2(right^top)] = top&right + } else { + cubeEdges[bits.log2(left^top)] = top&left + } + + //Determine visible faces + var axis = CUBE_AXIS + var cutCorner = closest + for(var d=0; d<3; ++d) { + if(cutCorner & (1< HALF_PI) && (b <= ONE_AND_HALF_PI)) ?\n b - PI :\n b;\n}\n\nfloat look_horizontal_or_vertical(float a, float ratio) {\n // ratio controls the ratio between being horizontal to (vertical + horizontal)\n // if ratio is set to 0.5 then it is 50%, 50%.\n // when using a higher ratio e.g. 0.75 the result would\n // likely be more horizontal than vertical.\n\n float b = positive_angle(a);\n\n return\n (b < ( ratio) * HALF_PI) ? 0.0 :\n (b < (2.0 - ratio) * HALF_PI) ? -HALF_PI :\n (b < (2.0 + ratio) * HALF_PI) ? 0.0 :\n (b < (4.0 - ratio) * HALF_PI) ? HALF_PI :\n 0.0;\n}\n\nfloat roundTo(float a, float b) {\n return float(b * floor((a + 0.5 * b) / b));\n}\n\nfloat look_round_n_directions(float a, int n) {\n float b = positive_angle(a);\n float div = TWO_PI / float(n);\n float c = roundTo(b, div);\n return look_upwards(c);\n}\n\nfloat applyAlignOption(float rawAngle, float delta) {\n return\n (option > 2) ? look_round_n_directions(rawAngle + delta, option) : // option 3-n: round to n directions\n (option == 2) ? look_horizontal_or_vertical(rawAngle + delta, hv_ratio) : // horizontal or vertical\n (option == 1) ? rawAngle + delta : // use free angle, and flip to align with one direction of the axis\n (option == 0) ? look_upwards(rawAngle) : // use free angle, and stay upwards\n (option ==-1) ? 0.0 : // useful for backward compatibility, all texts remains horizontal\n rawAngle; // otherwise return back raw input angle\n}\n\nbool isAxisTitle = (axis.x == 0.0) &&\n (axis.y == 0.0) &&\n (axis.z == 0.0);\n\nvoid main() {\n //Compute world offset\n float axisDistance = position.z;\n vec3 dataPosition = axisDistance * axis + offset;\n\n float beta = angle; // i.e. user defined attributes for each tick\n\n float axisAngle;\n float clipAngle;\n float flip;\n\n if (enableAlign) {\n axisAngle = (isAxisTitle) ? HALF_PI :\n computeViewAngle(dataPosition, dataPosition + axis);\n clipAngle = computeViewAngle(dataPosition, dataPosition + alignDir);\n\n axisAngle += (sin(axisAngle) < 0.0) ? PI : 0.0;\n clipAngle += (sin(clipAngle) < 0.0) ? PI : 0.0;\n\n flip = (dot(vec2(cos(axisAngle), sin(axisAngle)),\n vec2(sin(clipAngle),-cos(clipAngle))) > 0.0) ? 1.0 : 0.0;\n\n beta += applyAlignOption(clipAngle, flip * PI);\n }\n\n //Compute plane offset\n vec2 planeCoord = position.xy * pixelScale;\n\n mat2 planeXform = scale * mat2(\n cos(beta), sin(beta),\n -sin(beta), cos(beta)\n );\n\n vec2 viewOffset = 2.0 * planeXform * planeCoord / resolution;\n\n //Compute clip position\n vec3 clipPosition = project(dataPosition);\n\n //Apply text offset in clip coordinates\n clipPosition += vec3(viewOffset, 0.0);\n\n //Done\n gl_Position = vec4(clipPosition, 1.0);\n}"]) +var textFrag = glslify(["precision highp float;\n#define GLSLIFY 1\n\nuniform vec4 color;\nvoid main() {\n gl_FragColor = color;\n}"]) +exports.text = function(gl) { + return createShader(gl, textVert, textFrag, null, [ + {name: 'position', type: 'vec3'} + ]) +} + +var bgVert = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\nattribute vec3 normal;\n\nuniform mat4 model, view, projection;\nuniform vec3 enable;\nuniform vec3 bounds[2];\n\nvarying vec3 colorChannel;\n\nvoid main() {\n\n vec3 signAxis = sign(bounds[1] - bounds[0]);\n\n vec3 realNormal = signAxis * normal;\n\n if(dot(realNormal, enable) > 0.0) {\n vec3 minRange = min(bounds[0], bounds[1]);\n vec3 maxRange = max(bounds[0], bounds[1]);\n vec3 nPosition = mix(minRange, maxRange, 0.5 * (position + 1.0));\n gl_Position = projection * view * model * vec4(nPosition, 1.0);\n } else {\n gl_Position = vec4(0,0,0,0);\n }\n\n colorChannel = abs(realNormal);\n}"]) +var bgFrag = glslify(["precision highp float;\n#define GLSLIFY 1\n\nuniform vec4 colors[3];\n\nvarying vec3 colorChannel;\n\nvoid main() {\n gl_FragColor = colorChannel.x * colors[0] +\n colorChannel.y * colors[1] +\n colorChannel.z * colors[2];\n}"]) +exports.bg = function(gl) { + return createShader(gl, bgVert, bgFrag, null, [ + {name: 'position', type: 'vec3'}, + {name: 'normal', type: 'vec3'} + ]) +} + +},{"gl-shader":132,"glslify":231}],75:[function(_glvis_,module,exports){ +(function (process){(function (){ +"use strict" + +module.exports = createTextSprites + +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var vectorizeText = _glvis_('vectorize-text') +var createShader = _glvis_('./shaders').text + +var globals = window || process.global || {} +var __TEXT_CACHE = globals.__TEXT_CACHE || {} +globals.__TEXT_CACHE = {} + +//Vertex buffer format for text is: +// +/// [x,y,z] = Spatial coordinate +// + +var VERTEX_SIZE = 3 + +function TextSprites( + gl, + shader, + buffer, + vao) { + this.gl = gl + this.shader = shader + this.buffer = buffer + this.vao = vao + this.tickOffset = + this.tickCount = + this.labelOffset = + this.labelCount = null +} + +var proto = TextSprites.prototype + +//Bind textures for rendering +var SHAPE = [0,0] +proto.bind = function(model, view, projection, pixelScale) { + this.vao.bind() + this.shader.bind() + var uniforms = this.shader.uniforms + uniforms.model = model + uniforms.view = view + uniforms.projection = projection + uniforms.pixelScale = pixelScale + SHAPE[0] = this.gl.drawingBufferWidth + SHAPE[1] = this.gl.drawingBufferHeight + this.shader.uniforms.resolution = SHAPE +} + +proto.unbind = function() { + this.vao.unbind() +} + +proto.update = function(bounds, labels, labelFont, ticks, tickFont) { + var data = [] + + function addItem(t, text, font, size, lineSpacing, styletags) { + var fontcache = __TEXT_CACHE[font] + if(!fontcache) { + fontcache = __TEXT_CACHE[font] = {} + } + var mesh = fontcache[text] + if(!mesh) { + mesh = fontcache[text] = tryVectorizeText(text, { + triangles: true, + font: font, + textAlign: 'center', + textBaseline: 'middle', + lineSpacing: lineSpacing, + styletags: styletags + }) + } + var scale = (size || 12) / 12 + var positions = mesh.positions + var cells = mesh.cells + for(var i=0, nc=cells.length; i=0; --j) { + var p = positions[c[j]] + data.push(scale*p[0], -scale*p[1], t) + } + } + } + + //Generate sprites for all 3 axes, store data in texture atlases + var tickOffset = [0,0,0] + var tickCount = [0,0,0] + var labelOffset = [0,0,0] + var labelCount = [0,0,0] + var lineSpacing = 1.25 + var styletags = { + breaklines:true, + bolds: true, + italics: true, + subscripts:true, + superscripts:true + } + for(var d=0; d<3; ++d) { + + //Generate label + labelOffset[d] = (data.length/VERTEX_SIZE)|0 + addItem( + 0.5*(bounds[0][d]+bounds[1][d]), + labels[d], + labelFont[d], + 12, // labelFontSize + lineSpacing, + styletags + ) + labelCount[d] = ((data.length/VERTEX_SIZE)|0) - labelOffset[d] + + //Generate sprites for tick marks + tickOffset[d] = (data.length/VERTEX_SIZE)|0 + for(var i=0; i= 0) { + sigFigs = stepStr.length - u - 1 + } + var shift = Math.pow(10, sigFigs) + var x = Math.round(spacing * i * shift) + var xstr = x + "" + if(xstr.indexOf("e") >= 0) { + return xstr + } + var xi = x / shift, xf = x % shift + if(x < 0) { + xi = -Math.ceil(xi)|0 + xf = (-xf)|0 + } else { + xi = Math.floor(xi)|0 + xf = xf|0 + } + var xis = "" + xi + if(x < 0) { + xis = "-" + xis + } + if(sigFigs) { + var xs = "" + xf + while(xs.length < sigFigs) { + xs = "0" + xs + } + return xis + "." + xs + } else { + return xis + } +} + +function defaultTicks(bounds, tickSpacing) { + var array = [] + for(var d=0; d<3; ++d) { + var ticks = [] + var m = 0.5*(bounds[0][d]+bounds[1][d]) + for(var t=0; t*tickSpacing[d]<=bounds[1][d]; ++t) { + ticks.push({x: t*tickSpacing[d], text: prettyPrint(tickSpacing[d], t)}) + } + for(var t=-1; t*tickSpacing[d]>=bounds[0][d]; --t) { + ticks.push({x: t*tickSpacing[d], text: prettyPrint(tickSpacing[d], t)}) + } + array.push(ticks) + } + return array +} + +function ticksEqual(ticksA, ticksB) { + for(var i=0; i<3; ++i) { + if(ticksA[i].length !== ticksB[i].length) { + return false + } + for(var j=0; j len) { + throw new Error("gl-buffer: If resizing buffer, must not specify offset") + } + gl.bufferSubData(type, offset, data) + return len +} + +function makeScratchTypeArray(array, dtype) { + var res = pool.malloc(array.length, dtype) + var n = array.length + for(var i=0; i=0; --i) { + if(stride[i] !== n) { + return false + } + n *= shape[i] + } + return true +} + +proto.update = function(array, offset) { + if(typeof offset !== "number") { + offset = -1 + } + this.bind() + if(typeof array === "object" && typeof array.shape !== "undefined") { //ndarray + var dtype = array.dtype + if(SUPPORTED_TYPES.indexOf(dtype) < 0) { + dtype = "float32" + } + if(this.type === this.gl.ELEMENT_ARRAY_BUFFER) { + var ext = gl.getExtension('OES_element_index_uint') + if(ext && dtype !== "uint16") { + dtype = "uint32" + } else { + dtype = "uint16" + } + } + if(dtype === array.dtype && isPacked(array.shape, array.stride)) { + if(array.offset === 0 && array.data.length === array.shape[0]) { + this.length = updateTypeArray(this.gl, this.type, this.length, this.usage, array.data, offset) + } else { + this.length = updateTypeArray(this.gl, this.type, this.length, this.usage, array.data.subarray(array.offset, array.shape[0]), offset) + } + } else { + var tmp = pool.malloc(array.size, dtype) + var ndt = ndarray(tmp, array.shape) + ops.assign(ndt, array) + if(offset < 0) { + this.length = updateTypeArray(this.gl, this.type, this.length, this.usage, tmp, offset) + } else { + this.length = updateTypeArray(this.gl, this.type, this.length, this.usage, tmp.subarray(0, array.size), offset) + } + pool.free(tmp) + } + } else if(Array.isArray(array)) { //Vanilla array + var t + if(this.type === this.gl.ELEMENT_ARRAY_BUFFER) { + t = makeScratchTypeArray(array, "uint16") + } else { + t = makeScratchTypeArray(array, "float32") + } + if(offset < 0) { + this.length = updateTypeArray(this.gl, this.type, this.length, this.usage, t, offset) + } else { + this.length = updateTypeArray(this.gl, this.type, this.length, this.usage, t.subarray(0, array.length), offset) + } + pool.free(t) + } else if(typeof array === "object" && typeof array.length === "number") { //Typed array + this.length = updateTypeArray(this.gl, this.type, this.length, this.usage, array, offset) + } else if(typeof array === "number" || array === undefined) { //Number/default + if(offset >= 0) { + throw new Error("gl-buffer: Cannot specify offset when resizing buffer") + } + array = array | 0 + if(array <= 0) { + array = 1 + } + this.gl.bufferData(this.type, array|0, this.usage) + this.length = array + } else { //Error, case should not happen + throw new Error("gl-buffer: Invalid data type") + } +} + +function createBuffer(gl, data, type, usage) { + type = type || gl.ARRAY_BUFFER + usage = usage || gl.DYNAMIC_DRAW + if(type !== gl.ARRAY_BUFFER && type !== gl.ELEMENT_ARRAY_BUFFER) { + throw new Error("gl-buffer: Invalid type for webgl buffer, must be either gl.ARRAY_BUFFER or gl.ELEMENT_ARRAY_BUFFER") + } + if(usage !== gl.DYNAMIC_DRAW && usage !== gl.STATIC_DRAW && usage !== gl.STREAM_DRAW) { + throw new Error("gl-buffer: Invalid usage for buffer, must be either gl.DYNAMIC_DRAW, gl.STATIC_DRAW or gl.STREAM_DRAW") + } + var handle = gl.createBuffer() + var result = new GLBuffer(gl, type, handle, 0, usage) + result.update(data) + return result +} + +module.exports = createBuffer + +},{"ndarray":259,"ndarray-ops":254,"typedarray-pool":308}],79:[function(_glvis_,module,exports){ +"use strict"; + +var vec3 = _glvis_('gl-vec3'); + +module.exports = function(vectorfield, bounds) { + var positions = vectorfield.positions; + var vectors = vectorfield.vectors; + var geo = { + positions: [], + vertexIntensity: [], + vertexIntensityBounds: vectorfield.vertexIntensityBounds, + vectors: [], + cells: [], + coneOffset: vectorfield.coneOffset, + colormap: vectorfield.colormap + }; + + if (vectorfield.positions.length === 0) { + if (bounds) { + bounds[0] = [0,0,0]; + bounds[1] = [0,0,0]; + } + return geo; + } + + // Compute bounding box for the dataset. + // Compute maximum velocity for the dataset to use for scaling the cones. + var maxNorm = 0; + var minX = Infinity, maxX = -Infinity; + var minY = Infinity, maxY = -Infinity; + var minZ = Infinity, maxZ = -Infinity; + var p2 = null; + var u2 = null; + var positionVectors = []; + var vectorScale = Infinity; + var skipIt = false; + for (var i = 0; i < positions.length; i++) { + var p = positions[i]; + minX = Math.min(p[0], minX); + maxX = Math.max(p[0], maxX); + minY = Math.min(p[1], minY); + maxY = Math.max(p[1], maxY); + minZ = Math.min(p[2], minZ); + maxZ = Math.max(p[2], maxZ); + var u = vectors[i]; + + if (vec3.length(u) > maxNorm) { + maxNorm = vec3.length(u); + } + if (i) { + // Find vector scale [w/ units of time] using "successive" positions + // (not "adjacent" with would be O(n^2)), + // + // The vector scale corresponds to the minimum "time" to travel across two + // two adjacent positions at the average velocity of those two adjacent positions + + var q = (2 * vec3.distance(p2, p) / (vec3.length(u2) + vec3.length(u))); + if(q) { + vectorScale = Math.min(vectorScale, q); + skipIt = false; + } else { + skipIt = true; + } + } + if(!skipIt) { + p2 = p; + u2 = u; + } + positionVectors.push(u); + } + var minV = [minX, minY, minZ]; + var maxV = [maxX, maxY, maxZ]; + if (bounds) { + bounds[0] = minV; + bounds[1] = maxV; + } + if (maxNorm === 0) { + maxNorm = 1; + } + + // Inverted max norm would map vector with norm maxNorm to 1 coord space units in length + var invertedMaxNorm = 1 / maxNorm; + + if (!isFinite(vectorScale)) { + vectorScale = 1.0; + } + geo.vectorScale = vectorScale; + + var coneScale = vectorfield.coneSize || 0.5; + + if (vectorfield.absoluteConeSize) { + coneScale = vectorfield.absoluteConeSize * invertedMaxNorm; + } + + geo.coneScale = coneScale; + + // Build the cone model. + for (var i = 0, j = 0; i < positions.length; i++) { + var p = positions[i]; + var x = p[0], y = p[1], z = p[2]; + var d = positionVectors[i]; + var intensity = vec3.length(d) * invertedMaxNorm; + for (var k = 0, l = 8; k < l; k++) { + geo.positions.push([x, y, z, j++]); + geo.positions.push([x, y, z, j++]); + geo.positions.push([x, y, z, j++]); + geo.positions.push([x, y, z, j++]); + geo.positions.push([x, y, z, j++]); + geo.positions.push([x, y, z, j++]); + + geo.vectors.push(d); + geo.vectors.push(d); + geo.vectors.push(d); + geo.vectors.push(d); + geo.vectors.push(d); + geo.vectors.push(d); + + geo.vertexIntensity.push(intensity, intensity, intensity); + geo.vertexIntensity.push(intensity, intensity, intensity); + + var m = geo.positions.length; + geo.cells.push([m-6, m-5, m-4], [m-3, m-2, m-1]); + } + } + + return geo; +}; + +var shaders = _glvis_('./lib/shaders'); +module.exports.createMesh = _glvis_('./create_mesh'); +module.exports.createConeMesh = function(gl, params) { + return module.exports.createMesh(gl, params, { + shaders: shaders, + traceType: 'cone' + }); +} + +},{"./create_mesh":80,"./lib/shaders":81,"gl-vec3":169}],80:[function(_glvis_,module,exports){ +'use strict' + +var createShader = _glvis_('gl-shader') +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var createTexture = _glvis_('gl-texture2d') +var multiply = _glvis_('gl-mat4/multiply') +var invert = _glvis_('gl-mat4/invert') +var ndarray = _glvis_('ndarray') +var colormap = _glvis_('colormap') + +var IDENTITY = [ + 1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 0,0,0,1] + +function VectorMesh(gl + , texture + , triShader + , pickShader + , trianglePositions + , triangleVectors + , triangleIds + , triangleColors + , triangleUVs + , triangleVAO + , traceType) { + + this.gl = gl + this.pixelRatio = 1 + this.cells = [] + this.positions = [] + this.intensity = [] + this.texture = texture + this.dirty = true + + this.triShader = triShader + this.pickShader = pickShader + + this.trianglePositions = trianglePositions + this.triangleVectors = triangleVectors + this.triangleColors = triangleColors + this.triangleUVs = triangleUVs + this.triangleIds = triangleIds + this.triangleVAO = triangleVAO + this.triangleCount = 0 + + this.pickId = 1 + this.bounds = [ + [ Infinity, Infinity, Infinity], + [-Infinity,-Infinity,-Infinity] ] + this.clipBounds = [ + [-Infinity,-Infinity,-Infinity], + [ Infinity, Infinity, Infinity] ] + + this.lightPosition = [1e5, 1e5, 0] + this.ambientLight = 0.8 + this.diffuseLight = 0.8 + this.specularLight = 2.0 + this.roughness = 0.5 + this.fresnel = 1.5 + + this.opacity = 1 + + this.traceType = traceType + this.tubeScale = 1 // used in streamtube + this.coneScale = 2 // used in cone + this.vectorScale = 1 // used in cone + this.coneOffset = 0.25 // used in cone + + this._model = IDENTITY + this._view = IDENTITY + this._projection = IDENTITY + this._resolution = [1,1] +} + +var proto = VectorMesh.prototype + +proto.isOpaque = function() { + return this.opacity >= 1 +} + +proto.isTransparent = function() { + return this.opacity < 1 +} + +proto.pickSlots = 1 + +proto.setPickBase = function(id) { + this.pickId = id +} + +function genColormap(param) { + var colors = colormap({ + colormap: param + , nshades: 256 + , format: 'rgba' + }) + + var result = new Uint8Array(256*4) + for(var i=0; i<256; ++i) { + var c = colors[i] + for(var j=0; j<3; ++j) { + result[4*i+j] = c[j] + } + result[4*i+3] = c[3]*255 + } + + return ndarray(result, [256,256,4], [4,0,1]) +} + +function takeZComponent(array) { + var n = array.length + var result = new Array(n) + for(var i=0; i 0) { + var shader = this.triShader + shader.bind() + shader.uniforms = uniforms + + this.triangleVAO.bind() + gl.drawArrays(gl.TRIANGLES, 0, this.triangleCount*3) + this.triangleVAO.unbind() + } +} + +proto.drawPick = function(params) { + params = params || {} + + var gl = this.gl + + var model = params.model || IDENTITY + var view = params.view || IDENTITY + var projection = params.projection || IDENTITY + + var clipBounds = [[-1e6,-1e6,-1e6],[1e6,1e6,1e6]] + for(var i=0; i<3; ++i) { + clipBounds[0][i] = Math.max(clipBounds[0][i], this.clipBounds[0][i]) + clipBounds[1][i] = Math.min(clipBounds[1][i], this.clipBounds[1][i]) + } + + //Save camera parameters + this._model = [].slice.call(model) + this._view = [].slice.call(view) + this._projection = [].slice.call(projection) + this._resolution = [gl.drawingBufferWidth, gl.drawingBufferHeight] + + var uniforms = { + model: model, + view: view, + projection: projection, + clipBounds: clipBounds, + + tubeScale: this.tubeScale, + vectorScale: this.vectorScale, + coneScale: this.coneScale, + coneOffset: this.coneOffset, + + pickId: this.pickId / 255.0, + } + + var shader = this.pickShader + shader.bind() + shader.uniforms = uniforms + + if(this.triangleCount > 0) { + this.triangleVAO.bind() + gl.drawArrays(gl.TRIANGLES, 0, this.triangleCount*3) + this.triangleVAO.unbind() + } +} + + +proto.pick = function(pickData) { + if(!pickData) { + return null + } + if(pickData.id !== this.pickId) { + return null + } + + var cellId = pickData.value[0] + 256*pickData.value[1] + 65536*pickData.value[2] + var cell = this.cells[cellId] + var pos = this.positions[cell[1]].slice(0, 3) + + var result = { + position: pos, + dataCoordinate: pos, + index: Math.floor(cell[1] / 48) + } + + + if(this.traceType === 'cone') { + result.index = Math.floor(cell[1] / 48) + } else if(this.traceType === 'streamtube') { + result.intensity = this.intensity[cell[1]] + result.velocity = this.vectors[cell[1]].slice(0, 3) + result.divergence = this.vectors[cell[1]][3] + result.index = cellId + } + + return result +} + + +proto.dispose = function() { + this.texture.dispose() + + this.triShader.dispose() + this.pickShader.dispose() + + this.triangleVAO.dispose() + this.trianglePositions.dispose() + this.triangleVectors.dispose() + this.triangleColors.dispose() + this.triangleUVs.dispose() + this.triangleIds.dispose() +} + +function createMeshShader(gl, shaders) { + var shader = createShader(gl, + shaders.meshShader.vertex, + shaders.meshShader.fragment, + null, + shaders.meshShader.attributes + ) + + shader.attributes.position.location = 0 + shader.attributes.color.location = 2 + shader.attributes.uv.location = 3 + shader.attributes.vector.location = 4 + return shader +} + + +function createPickShader(gl, shaders) { + var shader = createShader(gl, + shaders.pickShader.vertex, + shaders.pickShader.fragment, + null, + shaders.pickShader.attributes + ) + + shader.attributes.position.location = 0 + shader.attributes.id.location = 1 + shader.attributes.vector.location = 4 + return shader +} + + +function createVectorMesh(gl, params, opts) { + var shaders = opts.shaders + + if (arguments.length === 1) { + params = gl + gl = params.gl + } + + + var triShader = createMeshShader(gl, shaders) + var pickShader = createPickShader(gl, shaders) + var meshTexture = createTexture(gl, + ndarray(new Uint8Array([255,255,255,255]), [1,1,4])) + meshTexture.generateMipmap() + meshTexture.minFilter = gl.LINEAR_MIPMAP_LINEAR + meshTexture.magFilter = gl.LINEAR + + var trianglePositions = createBuffer(gl) + var triangleVectors = createBuffer(gl) + var triangleColors = createBuffer(gl) + var triangleUVs = createBuffer(gl) + var triangleIds = createBuffer(gl) + var triangleVAO = createVAO(gl, [ + { buffer: trianglePositions, + type: gl.FLOAT, + size: 4 + }, + { buffer: triangleIds, + type: gl.UNSIGNED_BYTE, + size: 4, + normalized: true + }, + { buffer: triangleColors, + type: gl.FLOAT, + size: 4 + }, + { buffer: triangleUVs, + type: gl.FLOAT, + size: 2 + }, + { buffer: triangleVectors, + type: gl.FLOAT, + size: 4 + } + ]) + + var mesh = new VectorMesh(gl + , meshTexture + , triShader + , pickShader + , trianglePositions + , triangleVectors + , triangleIds + , triangleColors + , triangleUVs + , triangleVAO + , opts.traceType || 'cone' + ) + + mesh.update(params) + + return mesh +} + +module.exports = createVectorMesh + +},{"colormap":53,"gl-buffer":78,"gl-mat4/invert":98,"gl-mat4/multiply":100,"gl-shader":132,"gl-texture2d":146,"gl-vao":150,"ndarray":259}],81:[function(_glvis_,module,exports){ +var glslify = _glvis_('glslify') + +var triVertSrc = glslify(["precision highp float;\n\nprecision highp float;\n#define GLSLIFY 1\n\nvec3 getOrthogonalVector(vec3 v) {\n // Return up-vector for only-z vector.\n // Return ax + by + cz = 0, a point that lies on the plane that has v as a normal and that isn't (0,0,0).\n // From the above if-statement we have ||a|| > 0 U ||b|| > 0.\n // Assign z = 0, x = -b, y = a:\n // a*-b + b*a + c*0 = -ba + ba + 0 = 0\n if (v.x*v.x > v.z*v.z || v.y*v.y > v.z*v.z) {\n return normalize(vec3(-v.y, v.x, 0.0));\n } else {\n return normalize(vec3(0.0, v.z, -v.y));\n }\n}\n\n// Calculate the cone vertex and normal at the given index.\n//\n// The returned vertex is for a cone with its top at origin and height of 1.0,\n// pointing in the direction of the vector attribute.\n//\n// Each cone is made up of a top vertex, a center base vertex and base perimeter vertices.\n// These vertices are used to make up the triangles of the cone by the following:\n// segment + 0 top vertex\n// segment + 1 perimeter vertex a+1\n// segment + 2 perimeter vertex a\n// segment + 3 center base vertex\n// segment + 4 perimeter vertex a\n// segment + 5 perimeter vertex a+1\n// Where segment is the number of the radial segment * 6 and a is the angle at that radial segment.\n// To go from index to segment, floor(index / 6)\n// To go from segment to angle, 2*pi * (segment/segmentCount)\n// To go from index to segment index, index - (segment*6)\n//\nvec3 getConePosition(vec3 d, float rawIndex, float coneOffset, out vec3 normal) {\n\n const float segmentCount = 8.0;\n\n float index = rawIndex - floor(rawIndex /\n (segmentCount * 6.0)) *\n (segmentCount * 6.0);\n\n float segment = floor(0.001 + index/6.0);\n float segmentIndex = index - (segment*6.0);\n\n normal = -normalize(d);\n\n if (segmentIndex > 2.99 && segmentIndex < 3.01) {\n return mix(vec3(0.0), -d, coneOffset);\n }\n\n float nextAngle = (\n (segmentIndex > 0.99 && segmentIndex < 1.01) ||\n (segmentIndex > 4.99 && segmentIndex < 5.01)\n ) ? 1.0 : 0.0;\n float angle = 2.0 * 3.14159 * ((segment + nextAngle) / segmentCount);\n\n vec3 v1 = mix(d, vec3(0.0), coneOffset);\n vec3 v2 = v1 - d;\n\n vec3 u = getOrthogonalVector(d);\n vec3 v = normalize(cross(u, d));\n\n vec3 x = u * cos(angle) * length(d)*0.25;\n vec3 y = v * sin(angle) * length(d)*0.25;\n vec3 v3 = v2 + x + y;\n if (segmentIndex < 3.0) {\n vec3 tx = u * sin(angle);\n vec3 ty = v * -cos(angle);\n vec3 tangent = tx + ty;\n normal = normalize(cross(v3 - v1, tangent));\n }\n\n if (segmentIndex == 0.0) {\n return mix(d, vec3(0.0), coneOffset);\n }\n return v3;\n}\n\nattribute vec3 vector;\nattribute vec4 color, position;\nattribute vec2 uv;\n\nuniform float vectorScale, coneScale, coneOffset;\nuniform mat4 model, view, projection, inverseModel;\nuniform vec3 eyePosition, lightPosition;\n\nvarying vec3 f_normal, f_lightDirection, f_eyeDirection, f_data, f_position;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n // Scale the vector magnitude to stay constant with\n // model & view changes.\n vec3 normal;\n vec3 XYZ = getConePosition(mat3(model) * ((vectorScale * coneScale) * vector), position.w, coneOffset, normal);\n vec4 conePosition = model * vec4(position.xyz, 1.0) + vec4(XYZ, 0.0);\n\n //Lighting geometry parameters\n vec4 cameraCoordinate = view * conePosition;\n cameraCoordinate.xyz /= cameraCoordinate.w;\n f_lightDirection = lightPosition - cameraCoordinate.xyz;\n f_eyeDirection = eyePosition - cameraCoordinate.xyz;\n f_normal = normalize((vec4(normal, 0.0) * inverseModel).xyz);\n\n // vec4 m_position = model * vec4(conePosition, 1.0);\n vec4 t_position = view * conePosition;\n gl_Position = projection * t_position;\n\n f_color = color;\n f_data = conePosition.xyz;\n f_position = position.xyz;\n f_uv = uv;\n}\n"]) +var triFragSrc = glslify(["#extension GL_OES_standard_derivatives : enable\n\nprecision highp float;\n#define GLSLIFY 1\n\nfloat beckmannDistribution(float x, float roughness) {\n float NdotH = max(x, 0.0001);\n float cos2Alpha = NdotH * NdotH;\n float tan2Alpha = (cos2Alpha - 1.0) / cos2Alpha;\n float roughness2 = roughness * roughness;\n float denom = 3.141592653589793 * roughness2 * cos2Alpha * cos2Alpha;\n return exp(tan2Alpha / roughness2) / denom;\n}\n\nfloat cookTorranceSpecular(\n vec3 lightDirection,\n vec3 viewDirection,\n vec3 surfaceNormal,\n float roughness,\n float fresnel) {\n\n float VdotN = max(dot(viewDirection, surfaceNormal), 0.0);\n float LdotN = max(dot(lightDirection, surfaceNormal), 0.0);\n\n //Half angle vector\n vec3 H = normalize(lightDirection + viewDirection);\n\n //Geometric term\n float NdotH = max(dot(surfaceNormal, H), 0.0);\n float VdotH = max(dot(viewDirection, H), 0.000001);\n float LdotH = max(dot(lightDirection, H), 0.000001);\n float G1 = (2.0 * NdotH * VdotN) / VdotH;\n float G2 = (2.0 * NdotH * LdotN) / LdotH;\n float G = min(1.0, min(G1, G2));\n \n //Distribution term\n float D = beckmannDistribution(NdotH, roughness);\n\n //Fresnel term\n float F = pow(1.0 - VdotN, fresnel);\n\n //Multiply terms and done\n return G * F * D / max(3.14159265 * VdotN, 0.000001);\n}\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float roughness, fresnel, kambient, kdiffuse, kspecular, opacity;\nuniform sampler2D texture;\n\nvarying vec3 f_normal, f_lightDirection, f_eyeDirection, f_data, f_position;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n vec3 N = normalize(f_normal);\n vec3 L = normalize(f_lightDirection);\n vec3 V = normalize(f_eyeDirection);\n\n if(gl_FrontFacing) {\n N = -N;\n }\n\n float specular = min(1.0, max(0.0, cookTorranceSpecular(L, V, N, roughness, fresnel)));\n float diffuse = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n vec4 surfaceColor = f_color * texture2D(texture, f_uv);\n vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular, 1.0);\n\n gl_FragColor = litColor * opacity;\n}\n"]) +var pickVertSrc = glslify(["precision highp float;\n\nprecision highp float;\n#define GLSLIFY 1\n\nvec3 getOrthogonalVector(vec3 v) {\n // Return up-vector for only-z vector.\n // Return ax + by + cz = 0, a point that lies on the plane that has v as a normal and that isn't (0,0,0).\n // From the above if-statement we have ||a|| > 0 U ||b|| > 0.\n // Assign z = 0, x = -b, y = a:\n // a*-b + b*a + c*0 = -ba + ba + 0 = 0\n if (v.x*v.x > v.z*v.z || v.y*v.y > v.z*v.z) {\n return normalize(vec3(-v.y, v.x, 0.0));\n } else {\n return normalize(vec3(0.0, v.z, -v.y));\n }\n}\n\n// Calculate the cone vertex and normal at the given index.\n//\n// The returned vertex is for a cone with its top at origin and height of 1.0,\n// pointing in the direction of the vector attribute.\n//\n// Each cone is made up of a top vertex, a center base vertex and base perimeter vertices.\n// These vertices are used to make up the triangles of the cone by the following:\n// segment + 0 top vertex\n// segment + 1 perimeter vertex a+1\n// segment + 2 perimeter vertex a\n// segment + 3 center base vertex\n// segment + 4 perimeter vertex a\n// segment + 5 perimeter vertex a+1\n// Where segment is the number of the radial segment * 6 and a is the angle at that radial segment.\n// To go from index to segment, floor(index / 6)\n// To go from segment to angle, 2*pi * (segment/segmentCount)\n// To go from index to segment index, index - (segment*6)\n//\nvec3 getConePosition(vec3 d, float rawIndex, float coneOffset, out vec3 normal) {\n\n const float segmentCount = 8.0;\n\n float index = rawIndex - floor(rawIndex /\n (segmentCount * 6.0)) *\n (segmentCount * 6.0);\n\n float segment = floor(0.001 + index/6.0);\n float segmentIndex = index - (segment*6.0);\n\n normal = -normalize(d);\n\n if (segmentIndex > 2.99 && segmentIndex < 3.01) {\n return mix(vec3(0.0), -d, coneOffset);\n }\n\n float nextAngle = (\n (segmentIndex > 0.99 && segmentIndex < 1.01) ||\n (segmentIndex > 4.99 && segmentIndex < 5.01)\n ) ? 1.0 : 0.0;\n float angle = 2.0 * 3.14159 * ((segment + nextAngle) / segmentCount);\n\n vec3 v1 = mix(d, vec3(0.0), coneOffset);\n vec3 v2 = v1 - d;\n\n vec3 u = getOrthogonalVector(d);\n vec3 v = normalize(cross(u, d));\n\n vec3 x = u * cos(angle) * length(d)*0.25;\n vec3 y = v * sin(angle) * length(d)*0.25;\n vec3 v3 = v2 + x + y;\n if (segmentIndex < 3.0) {\n vec3 tx = u * sin(angle);\n vec3 ty = v * -cos(angle);\n vec3 tangent = tx + ty;\n normal = normalize(cross(v3 - v1, tangent));\n }\n\n if (segmentIndex == 0.0) {\n return mix(d, vec3(0.0), coneOffset);\n }\n return v3;\n}\n\nattribute vec4 vector;\nattribute vec4 position;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\nuniform float vectorScale, coneScale, coneOffset;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n vec3 normal;\n vec3 XYZ = getConePosition(mat3(model) * ((vectorScale * coneScale) * vector.xyz), position.w, coneOffset, normal);\n vec4 conePosition = model * vec4(position.xyz, 1.0) + vec4(XYZ, 0.0);\n gl_Position = projection * view * conePosition;\n f_id = id;\n f_position = position.xyz;\n}\n"]) +var pickFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float pickId;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n\n gl_FragColor = vec4(pickId, f_id.xyz);\n}"]) + +exports.meshShader = { + vertex: triVertSrc, + fragment: triFragSrc, + attributes: [ + {name: 'position', type: 'vec4'}, + {name: 'color', type: 'vec4'}, + {name: 'uv', type: 'vec2'}, + {name: 'vector', type: 'vec3'} + ] +} +exports.pickShader = { + vertex: pickVertSrc, + fragment: pickFragSrc, + attributes: [ + {name: 'position', type: 'vec4'}, + {name: 'id', type: 'vec4'}, + {name: 'vector', type: 'vec3'} + ] +} + +},{"glslify":231}],82:[function(_glvis_,module,exports){ +module.exports = { + 0: 'NONE', + 1: 'ONE', + 2: 'LINE_LOOP', + 3: 'LINE_STRIP', + 4: 'TRIANGLES', + 5: 'TRIANGLE_STRIP', + 6: 'TRIANGLE_FAN', + 256: 'DEPTH_BUFFER_BIT', + 512: 'NEVER', + 513: 'LESS', + 514: 'EQUAL', + 515: 'LEQUAL', + 516: 'GREATER', + 517: 'NOTEQUAL', + 518: 'GEQUAL', + 519: 'ALWAYS', + 768: 'SRC_COLOR', + 769: 'ONE_MINUS_SRC_COLOR', + 770: 'SRC_ALPHA', + 771: 'ONE_MINUS_SRC_ALPHA', + 772: 'DST_ALPHA', + 773: 'ONE_MINUS_DST_ALPHA', + 774: 'DST_COLOR', + 775: 'ONE_MINUS_DST_COLOR', + 776: 'SRC_ALPHA_SATURATE', + 1024: 'STENCIL_BUFFER_BIT', + 1028: 'FRONT', + 1029: 'BACK', + 1032: 'FRONT_AND_BACK', + 1280: 'INVALID_ENUM', + 1281: 'INVALID_VALUE', + 1282: 'INVALID_OPERATION', + 1285: 'OUT_OF_MEMORY', + 1286: 'INVALID_FRAMEBUFFER_OPERATION', + 2304: 'CW', + 2305: 'CCW', + 2849: 'LINE_WIDTH', + 2884: 'CULL_FACE', + 2885: 'CULL_FACE_MODE', + 2886: 'FRONT_FACE', + 2928: 'DEPTH_RANGE', + 2929: 'DEPTH_TEST', + 2930: 'DEPTH_WRITEMASK', + 2931: 'DEPTH_CLEAR_VALUE', + 2932: 'DEPTH_FUNC', + 2960: 'STENCIL_TEST', + 2961: 'STENCIL_CLEAR_VALUE', + 2962: 'STENCIL_FUNC', + 2963: 'STENCIL_VALUE_MASK', + 2964: 'STENCIL_FAIL', + 2965: 'STENCIL_PASS_DEPTH_FAIL', + 2966: 'STENCIL_PASS_DEPTH_PASS', + 2967: 'STENCIL_REF', + 2968: 'STENCIL_WRITEMASK', + 2978: 'VIEWPORT', + 3024: 'DITHER', + 3042: 'BLEND', + 3088: 'SCISSOR_BOX', + 3089: 'SCISSOR_TEST', + 3106: 'COLOR_CLEAR_VALUE', + 3107: 'COLOR_WRITEMASK', + 3317: 'UNPACK_ALIGNMENT', + 3333: 'PACK_ALIGNMENT', + 3379: 'MAX_TEXTURE_SIZE', + 3386: 'MAX_VIEWPORT_DIMS', + 3408: 'SUBPIXEL_BITS', + 3410: 'RED_BITS', + 3411: 'GREEN_BITS', + 3412: 'BLUE_BITS', + 3413: 'ALPHA_BITS', + 3414: 'DEPTH_BITS', + 3415: 'STENCIL_BITS', + 3553: 'TEXTURE_2D', + 4352: 'DONT_CARE', + 4353: 'FASTEST', + 4354: 'NICEST', + 5120: 'BYTE', + 5121: 'UNSIGNED_BYTE', + 5122: 'SHORT', + 5123: 'UNSIGNED_SHORT', + 5124: 'INT', + 5125: 'UNSIGNED_INT', + 5126: 'FLOAT', + 5386: 'INVERT', + 5890: 'TEXTURE', + 6401: 'STENCIL_INDEX', + 6402: 'DEPTH_COMPONENT', + 6406: 'ALPHA', + 6407: 'RGB', + 6408: 'RGBA', + 6409: 'LUMINANCE', + 6410: 'LUMINANCE_ALPHA', + 7680: 'KEEP', + 7681: 'REPLACE', + 7682: 'INCR', + 7683: 'DECR', + 7936: 'VENDOR', + 7937: 'RENDERER', + 7938: 'VERSION', + 9728: 'NEAREST', + 9729: 'LINEAR', + 9984: 'NEAREST_MIPMAP_NEAREST', + 9985: 'LINEAR_MIPMAP_NEAREST', + 9986: 'NEAREST_MIPMAP_LINEAR', + 9987: 'LINEAR_MIPMAP_LINEAR', + 10240: 'TEXTURE_MAG_FILTER', + 10241: 'TEXTURE_MIN_FILTER', + 10242: 'TEXTURE_WRAP_S', + 10243: 'TEXTURE_WRAP_T', + 10497: 'REPEAT', + 10752: 'POLYGON_OFFSET_UNITS', + 16384: 'COLOR_BUFFER_BIT', + 32769: 'CONSTANT_COLOR', + 32770: 'ONE_MINUS_CONSTANT_COLOR', + 32771: 'CONSTANT_ALPHA', + 32772: 'ONE_MINUS_CONSTANT_ALPHA', + 32773: 'BLEND_COLOR', + 32774: 'FUNC_ADD', + 32777: 'BLEND_EQUATION_RGB', + 32778: 'FUNC_SUBTRACT', + 32779: 'FUNC_REVERSE_SUBTRACT', + 32819: 'UNSIGNED_SHORT_4_4_4_4', + 32820: 'UNSIGNED_SHORT_5_5_5_1', + 32823: 'POLYGON_OFFSET_FILL', + 32824: 'POLYGON_OFFSET_FACTOR', + 32854: 'RGBA4', + 32855: 'RGB5_A1', + 32873: 'TEXTURE_BINDING_2D', + 32926: 'SAMPLE_ALPHA_TO_COVERAGE', + 32928: 'SAMPLE_COVERAGE', + 32936: 'SAMPLE_BUFFERS', + 32937: 'SAMPLES', + 32938: 'SAMPLE_COVERAGE_VALUE', + 32939: 'SAMPLE_COVERAGE_INVERT', + 32968: 'BLEND_DST_RGB', + 32969: 'BLEND_SRC_RGB', + 32970: 'BLEND_DST_ALPHA', + 32971: 'BLEND_SRC_ALPHA', + 33071: 'CLAMP_TO_EDGE', + 33170: 'GENERATE_MIPMAP_HINT', + 33189: 'DEPTH_COMPONENT16', + 33306: 'DEPTH_STENCIL_ATTACHMENT', + 33635: 'UNSIGNED_SHORT_5_6_5', + 33648: 'MIRRORED_REPEAT', + 33901: 'ALIASED_POINT_SIZE_RANGE', + 33902: 'ALIASED_LINE_WIDTH_RANGE', + 33984: 'TEXTURE0', + 33985: 'TEXTURE1', + 33986: 'TEXTURE2', + 33987: 'TEXTURE3', + 33988: 'TEXTURE4', + 33989: 'TEXTURE5', + 33990: 'TEXTURE6', + 33991: 'TEXTURE7', + 33992: 'TEXTURE8', + 33993: 'TEXTURE9', + 33994: 'TEXTURE10', + 33995: 'TEXTURE11', + 33996: 'TEXTURE12', + 33997: 'TEXTURE13', + 33998: 'TEXTURE14', + 33999: 'TEXTURE15', + 34000: 'TEXTURE16', + 34001: 'TEXTURE17', + 34002: 'TEXTURE18', + 34003: 'TEXTURE19', + 34004: 'TEXTURE20', + 34005: 'TEXTURE21', + 34006: 'TEXTURE22', + 34007: 'TEXTURE23', + 34008: 'TEXTURE24', + 34009: 'TEXTURE25', + 34010: 'TEXTURE26', + 34011: 'TEXTURE27', + 34012: 'TEXTURE28', + 34013: 'TEXTURE29', + 34014: 'TEXTURE30', + 34015: 'TEXTURE31', + 34016: 'ACTIVE_TEXTURE', + 34024: 'MAX_RENDERBUFFER_SIZE', + 34041: 'DEPTH_STENCIL', + 34055: 'INCR_WRAP', + 34056: 'DECR_WRAP', + 34067: 'TEXTURE_CUBE_MAP', + 34068: 'TEXTURE_BINDING_CUBE_MAP', + 34069: 'TEXTURE_CUBE_MAP_POSITIVE_X', + 34070: 'TEXTURE_CUBE_MAP_NEGATIVE_X', + 34071: 'TEXTURE_CUBE_MAP_POSITIVE_Y', + 34072: 'TEXTURE_CUBE_MAP_NEGATIVE_Y', + 34073: 'TEXTURE_CUBE_MAP_POSITIVE_Z', + 34074: 'TEXTURE_CUBE_MAP_NEGATIVE_Z', + 34076: 'MAX_CUBE_MAP_TEXTURE_SIZE', + 34338: 'VERTEX_ATTRIB_ARRAY_ENABLED', + 34339: 'VERTEX_ATTRIB_ARRAY_SIZE', + 34340: 'VERTEX_ATTRIB_ARRAY_STRIDE', + 34341: 'VERTEX_ATTRIB_ARRAY_TYPE', + 34342: 'CURRENT_VERTEX_ATTRIB', + 34373: 'VERTEX_ATTRIB_ARRAY_POINTER', + 34466: 'NUM_COMPRESSED_TEXTURE_FORMATS', + 34467: 'COMPRESSED_TEXTURE_FORMATS', + 34660: 'BUFFER_SIZE', + 34661: 'BUFFER_USAGE', + 34816: 'STENCIL_BACK_FUNC', + 34817: 'STENCIL_BACK_FAIL', + 34818: 'STENCIL_BACK_PASS_DEPTH_FAIL', + 34819: 'STENCIL_BACK_PASS_DEPTH_PASS', + 34877: 'BLEND_EQUATION_ALPHA', + 34921: 'MAX_VERTEX_ATTRIBS', + 34922: 'VERTEX_ATTRIB_ARRAY_NORMALIZED', + 34930: 'MAX_TEXTURE_IMAGE_UNITS', + 34962: 'ARRAY_BUFFER', + 34963: 'ELEMENT_ARRAY_BUFFER', + 34964: 'ARRAY_BUFFER_BINDING', + 34965: 'ELEMENT_ARRAY_BUFFER_BINDING', + 34975: 'VERTEX_ATTRIB_ARRAY_BUFFER_BINDING', + 35040: 'STREAM_DRAW', + 35044: 'STATIC_DRAW', + 35048: 'DYNAMIC_DRAW', + 35632: 'FRAGMENT_SHADER', + 35633: 'VERTEX_SHADER', + 35660: 'MAX_VERTEX_TEXTURE_IMAGE_UNITS', + 35661: 'MAX_COMBINED_TEXTURE_IMAGE_UNITS', + 35663: 'SHADER_TYPE', + 35664: 'FLOAT_VEC2', + 35665: 'FLOAT_VEC3', + 35666: 'FLOAT_VEC4', + 35667: 'INT_VEC2', + 35668: 'INT_VEC3', + 35669: 'INT_VEC4', + 35670: 'BOOL', + 35671: 'BOOL_VEC2', + 35672: 'BOOL_VEC3', + 35673: 'BOOL_VEC4', + 35674: 'FLOAT_MAT2', + 35675: 'FLOAT_MAT3', + 35676: 'FLOAT_MAT4', + 35678: 'SAMPLER_2D', + 35680: 'SAMPLER_CUBE', + 35712: 'DELETE_STATUS', + 35713: 'COMPILE_STATUS', + 35714: 'LINK_STATUS', + 35715: 'VALIDATE_STATUS', + 35716: 'INFO_LOG_LENGTH', + 35717: 'ATTACHED_SHADERS', + 35718: 'ACTIVE_UNIFORMS', + 35719: 'ACTIVE_UNIFORM_MAX_LENGTH', + 35720: 'SHADER_SOURCE_LENGTH', + 35721: 'ACTIVE_ATTRIBUTES', + 35722: 'ACTIVE_ATTRIBUTE_MAX_LENGTH', + 35724: 'SHADING_LANGUAGE_VERSION', + 35725: 'CURRENT_PROGRAM', + 36003: 'STENCIL_BACK_REF', + 36004: 'STENCIL_BACK_VALUE_MASK', + 36005: 'STENCIL_BACK_WRITEMASK', + 36006: 'FRAMEBUFFER_BINDING', + 36007: 'RENDERBUFFER_BINDING', + 36048: 'FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE', + 36049: 'FRAMEBUFFER_ATTACHMENT_OBJECT_NAME', + 36050: 'FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL', + 36051: 'FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE', + 36053: 'FRAMEBUFFER_COMPLETE', + 36054: 'FRAMEBUFFER_INCOMPLETE_ATTACHMENT', + 36055: 'FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT', + 36057: 'FRAMEBUFFER_INCOMPLETE_DIMENSIONS', + 36061: 'FRAMEBUFFER_UNSUPPORTED', + 36064: 'COLOR_ATTACHMENT0', + 36096: 'DEPTH_ATTACHMENT', + 36128: 'STENCIL_ATTACHMENT', + 36160: 'FRAMEBUFFER', + 36161: 'RENDERBUFFER', + 36162: 'RENDERBUFFER_WIDTH', + 36163: 'RENDERBUFFER_HEIGHT', + 36164: 'RENDERBUFFER_INTERNAL_FORMAT', + 36168: 'STENCIL_INDEX8', + 36176: 'RENDERBUFFER_RED_SIZE', + 36177: 'RENDERBUFFER_GREEN_SIZE', + 36178: 'RENDERBUFFER_BLUE_SIZE', + 36179: 'RENDERBUFFER_ALPHA_SIZE', + 36180: 'RENDERBUFFER_DEPTH_SIZE', + 36181: 'RENDERBUFFER_STENCIL_SIZE', + 36194: 'RGB565', + 36336: 'LOW_FLOAT', + 36337: 'MEDIUM_FLOAT', + 36338: 'HIGH_FLOAT', + 36339: 'LOW_INT', + 36340: 'MEDIUM_INT', + 36341: 'HIGH_INT', + 36346: 'SHADER_COMPILER', + 36347: 'MAX_VERTEX_UNIFORM_VECTORS', + 36348: 'MAX_VARYING_VECTORS', + 36349: 'MAX_FRAGMENT_UNIFORM_VECTORS', + 37440: 'UNPACK_FLIP_Y_WEBGL', + 37441: 'UNPACK_PREMULTIPLY_ALPHA_WEBGL', + 37442: 'CONTEXT_LOST_WEBGL', + 37443: 'UNPACK_COLORSPACE_CONVERSION_WEBGL', + 37444: 'BROWSER_DEFAULT_WEBGL' +} + +},{}],83:[function(_glvis_,module,exports){ +var gl10 = _glvis_('./1.0/numbers') + +module.exports = function lookupConstant (number) { + return gl10[number] +} + +},{"./1.0/numbers":82}],84:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createErrorBars + +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var createShader = _glvis_('./shaders/index') + +var IDENTITY = [1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 0,0,0,1] + +function ErrorBars(gl, buffer, vao, shader) { + this.gl = gl + this.shader = shader + this.buffer = buffer + this.vao = vao + this.pixelRatio = 1 + this.bounds = [[ Infinity, Infinity, Infinity], [-Infinity,-Infinity,-Infinity]] + this.clipBounds = [[-Infinity,-Infinity,-Infinity], [ Infinity, Infinity, Infinity]] + this.lineWidth = [1,1,1] + this.capSize = [10,10,10] + this.lineCount = [0,0,0] + this.lineOffset = [0,0,0] + this.opacity = 1 + this.hasAlpha = false +} + +var proto = ErrorBars.prototype + +proto.isOpaque = function() { + return !this.hasAlpha +} + +proto.isTransparent = function() { + return this.hasAlpha +} + +proto.drawTransparent = proto.draw = function(cameraParams) { + var gl = this.gl + var uniforms = this.shader.uniforms + + this.shader.bind() + var view = uniforms.view = cameraParams.view || IDENTITY + var projection = uniforms.projection = cameraParams.projection || IDENTITY + uniforms.model = cameraParams.model || IDENTITY + uniforms.clipBounds = this.clipBounds + uniforms.opacity = this.opacity + + + var cx = view[12] + var cy = view[13] + var cz = view[14] + var cw = view[15] + + var isOrtho = cameraParams._ortho || false + var orthoFix = (isOrtho) ? 2 : 1 // double up padding for orthographic ticks & labels + var pixelScaleF = orthoFix * this.pixelRatio * (projection[3]*cx + projection[7]*cy + projection[11]*cz + projection[15]*cw) / gl.drawingBufferHeight + + this.vao.bind() + for(var i=0; i<3; ++i) { + gl.lineWidth(this.lineWidth[i] * this.pixelRatio) + uniforms.capSize = this.capSize[i] * pixelScaleF + if (this.lineCount[i]) { + gl.drawArrays(gl.LINES, this.lineOffset[i], this.lineCount[i]) + } + } + this.vao.unbind() +} + +function updateBounds(bounds, point) { + for(var i=0; i<3; ++i) { + bounds[0][i] = Math.min(bounds[0][i], point[i]) + bounds[1][i] = Math.max(bounds[1][i], point[i]) + } +} + +var FACE_TABLE = (function(){ + var table = new Array(3) + for(var d=0; d<3; ++d) { + var row = [] + for(var j=1; j<=2; ++j) { + for(var s=-1; s<=1; s+=2) { + var u = (j+d) % 3 + var y = [0,0,0] + y[u] = s + row.push(y) + } + } + table[d] = row + } + return table +})() + + +function emitFace(verts, x, c, d) { + var offsets = FACE_TABLE[d] + for(var i=0; i 0) { + var x = p.slice() + x[j] += e[1][j] + verts.push(p[0], p[1], p[2], + c[0], c[1], c[2], c[3], + 0, 0, 0, + x[0], x[1], x[2], + c[0], c[1], c[2], c[3], + 0, 0, 0) + updateBounds(this.bounds, x) + vertexCount += 2 + emitFace(verts, x, c, j) + } + } + this.lineCount[j] = vertexCount - this.lineOffset[j] + } + this.buffer.update(verts) + } +} + +proto.dispose = function() { + this.shader.dispose() + this.buffer.dispose() + this.vao.dispose() +} + +function createErrorBars(options) { + var gl = options.gl + var buffer = createBuffer(gl) + var vao = createVAO(gl, [ + { + buffer: buffer, + type: gl.FLOAT, + size: 3, + offset: 0, + stride: 40 + }, + { + buffer: buffer, + type: gl.FLOAT, + size: 4, + offset: 12, + stride: 40 + }, + { + buffer: buffer, + type: gl.FLOAT, + size: 3, + offset: 28, + stride: 40 + } + ]) + + var shader = createShader(gl) + shader.attributes.position.location = 0 + shader.attributes.color.location = 1 + shader.attributes.offset.location = 2 + + var result = new ErrorBars(gl, buffer, vao, shader) + result.update(options) + return result +} + +},{"./shaders/index":85,"gl-buffer":78,"gl-vao":150}],85:[function(_glvis_,module,exports){ +'use strict' + +var glslify = _glvis_('glslify') +var createShader = _glvis_('gl-shader') + +var vertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position, offset;\nattribute vec4 color;\nuniform mat4 model, view, projection;\nuniform float capSize;\nvarying vec4 fragColor;\nvarying vec3 fragPosition;\n\nvoid main() {\n vec4 worldPosition = model * vec4(position, 1.0);\n worldPosition = (worldPosition / worldPosition.w) + vec4(capSize * offset, 0.0);\n gl_Position = projection * view * worldPosition;\n fragColor = color;\n fragPosition = position;\n}"]) +var fragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float opacity;\nvarying vec3 fragPosition;\nvarying vec4 fragColor;\n\nvoid main() {\n if (\n outOfRange(clipBounds[0], clipBounds[1], fragPosition) ||\n fragColor.a * opacity == 0.\n ) discard;\n\n gl_FragColor = opacity * fragColor;\n}"]) + +module.exports = function(gl) { + return createShader(gl, vertSrc, fragSrc, null, [ + {name: 'position', type: 'vec3'}, + {name: 'color', type: 'vec4'}, + {name: 'offset', type: 'vec3'} + ]) +} + +},{"gl-shader":132,"glslify":231}],86:[function(_glvis_,module,exports){ +'use strict' + +var createTexture = _glvis_('gl-texture2d') + +module.exports = createFBO + +var colorAttachmentArrays = null +var FRAMEBUFFER_UNSUPPORTED +var FRAMEBUFFER_INCOMPLETE_ATTACHMENT +var FRAMEBUFFER_INCOMPLETE_DIMENSIONS +var FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT + +function saveFBOState(gl) { + var fbo = gl.getParameter(gl.FRAMEBUFFER_BINDING) + var rbo = gl.getParameter(gl.RENDERBUFFER_BINDING) + var tex = gl.getParameter(gl.TEXTURE_BINDING_2D) + return [fbo, rbo, tex] +} + +function restoreFBOState(gl, data) { + gl.bindFramebuffer(gl.FRAMEBUFFER, data[0]) + gl.bindRenderbuffer(gl.RENDERBUFFER, data[1]) + gl.bindTexture(gl.TEXTURE_2D, data[2]) +} + +function lazyInitColorAttachments(gl, ext) { + var maxColorAttachments = gl.getParameter(ext.MAX_COLOR_ATTACHMENTS_WEBGL) + colorAttachmentArrays = new Array(maxColorAttachments + 1) + for(var i=0; i<=maxColorAttachments; ++i) { + var x = new Array(maxColorAttachments) + for(var j=0; j 1) { + ext.drawBuffersWEBGL(colorAttachmentArrays[numColors]) + } + + //Allocate depth/stencil buffers + var WEBGL_depth_texture = gl.getExtension('WEBGL_depth_texture') + if(WEBGL_depth_texture) { + if(useStencil) { + fbo.depth = initTexture(gl, width, height, + WEBGL_depth_texture.UNSIGNED_INT_24_8_WEBGL, + gl.DEPTH_STENCIL, + gl.DEPTH_STENCIL_ATTACHMENT) + } else if(useDepth) { + fbo.depth = initTexture(gl, width, height, + gl.UNSIGNED_SHORT, + gl.DEPTH_COMPONENT, + gl.DEPTH_ATTACHMENT) + } + } else { + if(useDepth && useStencil) { + fbo._depth_rb = initRenderBuffer(gl, width, height, gl.DEPTH_STENCIL, gl.DEPTH_STENCIL_ATTACHMENT) + } else if(useDepth) { + fbo._depth_rb = initRenderBuffer(gl, width, height, gl.DEPTH_COMPONENT16, gl.DEPTH_ATTACHMENT) + } else if(useStencil) { + fbo._depth_rb = initRenderBuffer(gl, width, height, gl.STENCIL_INDEX, gl.STENCIL_ATTACHMENT) + } + } + + //Check frame buffer state + var status = gl.checkFramebufferStatus(gl.FRAMEBUFFER) + if(status !== gl.FRAMEBUFFER_COMPLETE) { + + //Release all partially allocated resources + fbo._destroyed = true + + //Release all resources + gl.bindFramebuffer(gl.FRAMEBUFFER, null) + gl.deleteFramebuffer(fbo.handle) + fbo.handle = null + if(fbo.depth) { + fbo.depth.dispose() + fbo.depth = null + } + if(fbo._depth_rb) { + gl.deleteRenderbuffer(fbo._depth_rb) + fbo._depth_rb = null + } + for(var i=0; i maxFBOSize || + h < 0 || h > maxFBOSize) { + throw new Error('gl-fbo: Can\'t resize FBO, invalid dimensions') + } + + //Update shape + fbo._shape[0] = w + fbo._shape[1] = h + + //Save framebuffer state + var state = saveFBOState(gl) + + //Resize framebuffer attachments + for(var i=0; i maxFBOSize || height < 0 || height > maxFBOSize) { + throw new Error('gl-fbo: Parameters are too large for FBO') + } + + //Handle each option type + options = options || {} + + //Figure out number of color buffers to use + var numColors = 1 + if('color' in options) { + numColors = Math.max(options.color|0, 0) + if(numColors < 0) { + throw new Error('gl-fbo: Must specify a nonnegative number of colors') + } + if(numColors > 1) { + //Check if multiple render targets supported + if(!WEBGL_draw_buffers) { + throw new Error('gl-fbo: Multiple draw buffer extension not supported') + } else if(numColors > gl.getParameter(WEBGL_draw_buffers.MAX_COLOR_ATTACHMENTS_WEBGL)) { + throw new Error('gl-fbo: Context does not support ' + numColors + ' draw buffers') + } + } + } + + //Determine whether to use floating point textures + var colorType = gl.UNSIGNED_BYTE + var OES_texture_float = gl.getExtension('OES_texture_float') + if(options.float && numColors > 0) { + if(!OES_texture_float) { + throw new Error('gl-fbo: Context does not support floating point textures') + } + colorType = gl.FLOAT + } else if(options.preferFloat && numColors > 0) { + if(OES_texture_float) { + colorType = gl.FLOAT + } + } + + //Check if we should use depth buffer + var useDepth = true + if('depth' in options) { + useDepth = !!options.depth + } + + //Check if we should use a stencil buffer + var useStencil = false + if('stencil' in options) { + useStencil = !!options.stencil + } + + return new Framebuffer( + gl, + width, + height, + colorType, + numColors, + useDepth, + useStencil, + WEBGL_draw_buffers) +} + +},{"gl-texture2d":146}],87:[function(_glvis_,module,exports){ + +var sprintf = _glvis_('sprintf-js').sprintf; +var glConstants = _glvis_('gl-constants/lookup'); +var shaderName = _glvis_('glsl-shader-name'); +var addLineNumbers = _glvis_('add-line-numbers'); + +module.exports = formatCompilerError; + +function formatCompilerError(errLog, src, type) { + "use strict"; + + var name = shaderName(src) || 'of unknown name (see npm glsl-shader-name)'; + + var typeName = 'unknown type'; + if (type !== undefined) { + typeName = type === glConstants.FRAGMENT_SHADER ? 'fragment' : 'vertex' + } + + var longForm = sprintf('Error compiling %s shader %s:\n', typeName, name); + var shortForm = sprintf("%s%s", longForm, errLog); + + var errorStrings = errLog.split('\n'); + var errors = {}; + + for (var i = 0; i < errorStrings.length; i++) { + var errorString = errorStrings[i]; + if (errorString === '' || errorString === "\0") continue; + var lineNo = parseInt(errorString.split(':')[2]); + if (isNaN(lineNo)) { + throw new Error(sprintf('Could not parse error: %s', errorString)); + } + errors[lineNo] = errorString; + } + + var lines = addLineNumbers(src).split('\n'); + + for (var i = 0; i < lines.length; i++) { + if (!errors[i+3] && !errors[i+2] && !errors[i+1]) continue; + var line = lines[i]; + longForm += line + '\n'; + if (errors[i+1]) { + var e = errors[i+1]; + e = e.substr(e.split(':', 3).join(':').length + 1).trim(); + longForm += sprintf('^^^ %s\n\n', e); + } + } + + return { + long: longForm.trim(), + short: shortForm.trim() + }; +} + + +},{"add-line-numbers":9,"gl-constants/lookup":83,"glsl-shader-name":223,"sprintf-js":301}],88:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createHeatmap2D + +var bsearch = _glvis_('binary-search-bounds') +var iota = _glvis_('iota-array') +var pool = _glvis_('typedarray-pool') +var createShader = _glvis_('gl-shader') +var createBuffer = _glvis_('gl-buffer') + +var shaders = _glvis_('./lib/shaders') + +function GLHeatmap2D ( + plot, + shader, + pickShader, + positionBuffer, + weightBuffer, + colorBuffer, + idBuffer) { + this.plot = plot + this.shader = shader + this.pickShader = pickShader + this.positionBuffer = positionBuffer + this.weightBuffer = weightBuffer + this.colorBuffer = colorBuffer + this.idBuffer = idBuffer + this.xData = [] + this.yData = [] + this.shape = [0, 0] + this.bounds = [Infinity, Infinity, -Infinity, -Infinity] + this.pickOffset = 0 +} + +var proto = GLHeatmap2D.prototype + +var WEIGHTS = [ + 0, 0, + 1, 0, + 0, 1, + 1, 0, + 1, 1, + 0, 1 +] + +proto.draw = (function () { + var MATRIX = [ + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + ] + + return function () { + var plot = this.plot + var shader = this.shader + var bounds = this.bounds + var numVertices = this.numVertices + + if (numVertices <= 0) { + return + } + + var gl = plot.gl + var dataBox = plot.dataBox + + var boundX = bounds[2] - bounds[0] + var boundY = bounds[3] - bounds[1] + var dataX = dataBox[2] - dataBox[0] + var dataY = dataBox[3] - dataBox[1] + + MATRIX[0] = 2.0 * boundX / dataX + MATRIX[4] = 2.0 * boundY / dataY + MATRIX[6] = 2.0 * (bounds[0] - dataBox[0]) / dataX - 1.0 + MATRIX[7] = 2.0 * (bounds[1] - dataBox[1]) / dataY - 1.0 + + shader.bind() + + var uniforms = shader.uniforms + uniforms.viewTransform = MATRIX + + uniforms.shape = this.shape + + var attributes = shader.attributes + this.positionBuffer.bind() + attributes.position.pointer() + + this.weightBuffer.bind() + attributes.weight.pointer(gl.UNSIGNED_BYTE, false) + + this.colorBuffer.bind() + attributes.color.pointer(gl.UNSIGNED_BYTE, true) + + gl.drawArrays(gl.TRIANGLES, 0, numVertices) + } +})() + +proto.drawPick = (function () { + var MATRIX = [ + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + ] + + var PICK_VECTOR = [0, 0, 0, 0] + + return function (pickOffset) { + var plot = this.plot + var shader = this.pickShader + var bounds = this.bounds + var numVertices = this.numVertices + + if (numVertices <= 0) { + return + } + + var gl = plot.gl + var dataBox = plot.dataBox + + var boundX = bounds[2] - bounds[0] + var boundY = bounds[3] - bounds[1] + var dataX = dataBox[2] - dataBox[0] + var dataY = dataBox[3] - dataBox[1] + + MATRIX[0] = 2.0 * boundX / dataX + MATRIX[4] = 2.0 * boundY / dataY + MATRIX[6] = 2.0 * (bounds[0] - dataBox[0]) / dataX - 1.0 + MATRIX[7] = 2.0 * (bounds[1] - dataBox[1]) / dataY - 1.0 + + for (var i = 0; i < 4; ++i) { + PICK_VECTOR[i] = (pickOffset >> (i * 8)) & 0xff + } + + this.pickOffset = pickOffset + + shader.bind() + + var uniforms = shader.uniforms + uniforms.viewTransform = MATRIX + uniforms.pickOffset = PICK_VECTOR + uniforms.shape = this.shape + + var attributes = shader.attributes + this.positionBuffer.bind() + attributes.position.pointer() + + this.weightBuffer.bind() + attributes.weight.pointer(gl.UNSIGNED_BYTE, false) + + this.idBuffer.bind() + attributes.pickId.pointer(gl.UNSIGNED_BYTE, false) + + gl.drawArrays(gl.TRIANGLES, 0, numVertices) + + return pickOffset + this.shape[0] * this.shape[1] + } +})() + +proto.pick = function (x, y, value) { + var pickOffset = this.pickOffset + var pointCount = this.shape[0] * this.shape[1] + if (value < pickOffset || value >= pickOffset + pointCount) { + return null + } + var pointId = value - pickOffset + var xData = this.xData + var yData = this.yData + return { + object: this, + pointId: pointId, + dataCoord: [ + xData[pointId % this.shape[0]], + yData[(pointId / this.shape[0]) | 0]] + } +} + +proto.update = function (options) { + options = options || {} + + var shape = options.shape || [0, 0] + + var x = options.x || iota(shape[0]) + var y = options.y || iota(shape[1]) + var z = options.z || new Float32Array(shape[0] * shape[1]) + + var isSmooth = options.zsmooth !== false + + this.xData = x + this.yData = y + + var colorLevels = options.colorLevels || [0] + var colorValues = options.colorValues || [0, 0, 0, 1] + var colorCount = colorLevels.length + + var bounds = this.bounds + var lox, loy, hix, hiy + if (isSmooth) { + lox = bounds[0] = x[0] + loy = bounds[1] = y[0] + hix = bounds[2] = x[x.length - 1] + hiy = bounds[3] = y[y.length - 1] + } else { + // To get squares to centre on data values + lox = bounds[0] = x[0] + (x[1] - x[0]) / 2 // starting x value + loy = bounds[1] = y[0] + (y[1] - y[0]) / 2 // starting y value + + // Bounds needs to add half a square on each end + hix = bounds[2] = x[x.length - 1] + (x[x.length - 1] - x[x.length - 2]) / 2 + hiy = bounds[3] = y[y.length - 1] + (y[y.length - 1] - y[y.length - 2]) / 2 + + // N.B. Resolution = 1 / range + } + var xs = 1.0 / (hix - lox) + var ys = 1.0 / (hiy - loy) + + var numX = shape[0] + var numY = shape[1] + + this.shape = [numX, numY] + + var numVerts = ( + isSmooth ? (numX - 1) * (numY - 1) : numX * numY + ) * (WEIGHTS.length >>> 1) + + this.numVertices = numVerts + + var colors = pool.mallocUint8(numVerts * 4) + var positions = pool.mallocFloat32(numVerts * 2) + var weights = pool.mallocUint8 (numVerts * 2) + var ids = pool.mallocUint32(numVerts) + + var ptr = 0 + + var ni = isSmooth ? numX - 1 : numX + var nj = isSmooth ? numY - 1 : numY + + for (var j = 0; j < nj; ++j) { + var yc0, yc1 + + if (isSmooth) { + yc0 = ys * (y[j] - loy) + yc1 = ys * (y[j + 1] - loy) + } else { + yc0 = j < numY - 1 ? ys * (y[j] - (y[j + 1] - y[j])/2 - loy) : ys * (y[j] - (y[j] - y[j - 1])/2 - loy) + yc1 = j < numY - 1 ? ys * (y[j] + (y[j + 1] - y[j])/2 - loy) : ys * (y[j] + (y[j] - y[j - 1])/2 - loy) + } + + for (var i = 0; i < ni; ++i) { + var xc0, xc1 + + if (isSmooth) { + xc0 = xs * (x[i] - lox) + xc1 = xs * (x[i + 1] - lox) + } else { + xc0 = i < numX - 1 ? xs * (x[i] - (x[i + 1] - x[i])/2 - lox) : xs * (x[i] - (x[i] - x[i - 1])/2 - lox) + xc1 = i < numX - 1 ? xs * (x[i] + (x[i + 1] - x[i])/2 - lox) : xs * (x[i] + (x[i] - x[i - 1])/2 - lox) + } + + for (var dd = 0; dd < WEIGHTS.length; dd += 2) { + var dx = WEIGHTS[dd] + var dy = WEIGHTS[dd + 1] + var offset = isSmooth ? (j + dy) * numX + (i + dx) : j * numX + i + var zc = z[offset] + var colorIdx = bsearch.le(colorLevels, zc) + var r, g, b, a + if (colorIdx < 0) { + r = colorValues[0] + g = colorValues[1] + b = colorValues[2] + a = colorValues[3] + } else if (colorIdx === colorCount - 1) { + r = colorValues[4 * colorCount - 4] + g = colorValues[4 * colorCount - 3] + b = colorValues[4 * colorCount - 2] + a = colorValues[4 * colorCount - 1] + } else { + var t = (zc - colorLevels[colorIdx]) / + (colorLevels[colorIdx + 1] - colorLevels[colorIdx]) + var ti = 1.0 - t + var i0 = 4 * colorIdx + var i1 = 4 * (colorIdx + 1) + r = ti * colorValues[i0] + t * colorValues[i1] + g = ti * colorValues[i0 + 1] + t * colorValues[i1 + 1] + b = ti * colorValues[i0 + 2] + t * colorValues[i1 + 2] + a = ti * colorValues[i0 + 3] + t * colorValues[i1 + 3] + } + + colors[4 * ptr] = 255 * r + colors[4 * ptr + 1] = 255 * g + colors[4 * ptr + 2] = 255 * b + colors[4 * ptr + 3] = 255 * a + + positions[2*ptr] = xc0*.5 + xc1*.5; + positions[2*ptr+1] = yc0*.5 + yc1*.5; + + weights[2*ptr] = dx; + weights[2*ptr+1] = dy; + + ids[ptr] = j * numX + i + + ptr += 1 + } + } + } + + this.positionBuffer.update(positions) + this.weightBuffer.update(weights) + this.colorBuffer.update(colors) + this.idBuffer.update(ids) + + pool.free(positions) + pool.free(colors) + pool.free(weights) + pool.free(ids) +} + +proto.dispose = function () { + this.shader.dispose() + this.pickShader.dispose() + this.positionBuffer.dispose() + this.weightBuffer.dispose() + this.colorBuffer.dispose() + this.idBuffer.dispose() + this.plot.removeObject(this) +} + +function createHeatmap2D (plot, options) { + var gl = plot.gl + + var shader = createShader(gl, shaders.vertex, shaders.fragment) + var pickShader = createShader(gl, shaders.pickVertex, shaders.pickFragment) + + var positionBuffer = createBuffer(gl) + var weightBuffer = createBuffer(gl) + var colorBuffer = createBuffer(gl) + var idBuffer = createBuffer(gl) + + var heatmap = new GLHeatmap2D( + plot, + shader, + pickShader, + positionBuffer, + weightBuffer, + colorBuffer, + idBuffer) + + heatmap.update(options) + plot.addObject(heatmap) + + return heatmap +} + +},{"./lib/shaders":89,"binary-search-bounds":31,"gl-buffer":78,"gl-shader":132,"iota-array":235,"typedarray-pool":308}],89:[function(_glvis_,module,exports){ +'use strict' + +var glslify = _glvis_('glslify') + +module.exports = { + fragment: glslify(["precision lowp float;\n#define GLSLIFY 1\nvarying vec4 fragColor;\nvoid main() {\n gl_FragColor = vec4(fragColor.rgb * fragColor.a, fragColor.a);\n}\n"]), + vertex: glslify(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 position;\nattribute vec4 color;\nattribute vec2 weight;\n\nuniform vec2 shape;\nuniform mat3 viewTransform;\n\nvarying vec4 fragColor;\n\nvoid main() {\n vec3 vPosition = viewTransform * vec3( position + (weight-.5)/(shape-1.) , 1.0);\n fragColor = color;\n gl_Position = vec4(vPosition.xy, 0, vPosition.z);\n}\n"]), + pickFragment: glslify(["precision mediump float;\n#define GLSLIFY 1\n\nvarying vec4 fragId;\nvarying vec2 vWeight;\n\nuniform vec2 shape;\nuniform vec4 pickOffset;\n\nvoid main() {\n vec2 d = step(.5, vWeight);\n vec4 id = fragId + pickOffset;\n id.x += d.x + d.y*shape.x;\n\n id.y += floor(id.x / 256.0);\n id.x -= floor(id.x / 256.0) * 256.0;\n\n id.z += floor(id.y / 256.0);\n id.y -= floor(id.y / 256.0) * 256.0;\n\n id.w += floor(id.z / 256.0);\n id.z -= floor(id.z / 256.0) * 256.0;\n\n gl_FragColor = id/255.;\n}\n"]), + pickVertex: glslify(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 position;\nattribute vec4 pickId;\nattribute vec2 weight;\n\nuniform vec2 shape;\nuniform mat3 viewTransform;\n\nvarying vec4 fragId;\nvarying vec2 vWeight;\n\nvoid main() {\n vWeight = weight;\n\n fragId = pickId;\n\n vec3 vPosition = viewTransform * vec3( position + (weight-.5)/(shape-1.) , 1.0);\n gl_Position = vec4(vPosition.xy, 0, vPosition.z);\n}\n"]) +} + +},{"glslify":231}],90:[function(_glvis_,module,exports){ +var glslify = _glvis_('glslify') +var createShader = _glvis_('gl-shader') + +var vertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position, nextPosition;\nattribute float arcLength, lineWidth;\nattribute vec4 color;\n\nuniform vec2 screenShape;\nuniform float pixelRatio;\nuniform mat4 model, view, projection;\n\nvarying vec4 fragColor;\nvarying vec3 worldPosition;\nvarying float pixelArcLength;\n\nvec4 project(vec3 p) {\n return projection * view * model * vec4(p, 1.0);\n}\n\nvoid main() {\n vec4 startPoint = project(position);\n vec4 endPoint = project(nextPosition);\n\n vec2 A = startPoint.xy / startPoint.w;\n vec2 B = endPoint.xy / endPoint.w;\n\n float clipAngle = atan(\n (B.y - A.y) * screenShape.y,\n (B.x - A.x) * screenShape.x\n );\n\n vec2 offset = 0.5 * pixelRatio * lineWidth * vec2(\n sin(clipAngle),\n -cos(clipAngle)\n ) / screenShape;\n\n gl_Position = vec4(startPoint.xy + startPoint.w * offset, startPoint.zw);\n\n worldPosition = position;\n pixelArcLength = arcLength;\n fragColor = color;\n}\n"]) +var forwardFrag = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform sampler2D dashTexture;\nuniform float dashScale;\nuniform float opacity;\n\nvarying vec3 worldPosition;\nvarying float pixelArcLength;\nvarying vec4 fragColor;\n\nvoid main() {\n if (\n outOfRange(clipBounds[0], clipBounds[1], worldPosition) ||\n fragColor.a * opacity == 0.\n ) discard;\n\n float dashWeight = texture2D(dashTexture, vec2(dashScale * pixelArcLength, 0)).r;\n if(dashWeight < 0.5) {\n discard;\n }\n gl_FragColor = fragColor * opacity;\n}\n"]) +var pickFrag = glslify(["precision highp float;\n#define GLSLIFY 1\n\n#define FLOAT_MAX 1.70141184e38\n#define FLOAT_MIN 1.17549435e-38\n\n// https://github.com/mikolalysenko/glsl-read-float/blob/master/index.glsl\nvec4 packFloat(float v) {\n float av = abs(v);\n\n //Handle special cases\n if(av < FLOAT_MIN) {\n return vec4(0.0, 0.0, 0.0, 0.0);\n } else if(v > FLOAT_MAX) {\n return vec4(127.0, 128.0, 0.0, 0.0) / 255.0;\n } else if(v < -FLOAT_MAX) {\n return vec4(255.0, 128.0, 0.0, 0.0) / 255.0;\n }\n\n vec4 c = vec4(0,0,0,0);\n\n //Compute exponent and mantissa\n float e = floor(log2(av));\n float m = av * pow(2.0, -e) - 1.0;\n\n //Unpack mantissa\n c[1] = floor(128.0 * m);\n m -= c[1] / 128.0;\n c[2] = floor(32768.0 * m);\n m -= c[2] / 32768.0;\n c[3] = floor(8388608.0 * m);\n\n //Unpack exponent\n float ebias = e + 127.0;\n c[0] = floor(ebias / 2.0);\n ebias -= c[0] * 2.0;\n c[1] += floor(ebias) * 128.0;\n\n //Unpack sign bit\n c[0] += 128.0 * step(0.0, -v);\n\n //Scale back to range\n return c / 255.0;\n}\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform float pickId;\nuniform vec3 clipBounds[2];\n\nvarying vec3 worldPosition;\nvarying float pixelArcLength;\nvarying vec4 fragColor;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], worldPosition)) discard;\n\n gl_FragColor = vec4(pickId/255.0, packFloat(pixelArcLength).xyz);\n}"]) + +var ATTRIBUTES = [ + {name: 'position', type: 'vec3'}, + {name: 'nextPosition', type: 'vec3'}, + {name: 'arcLength', type: 'float'}, + {name: 'lineWidth', type: 'float'}, + {name: 'color', type: 'vec4'} +] + +exports.createShader = function(gl) { + return createShader(gl, vertSrc, forwardFrag, null, ATTRIBUTES) +} + +exports.createPickShader = function(gl) { + return createShader(gl, vertSrc, pickFrag, null, ATTRIBUTES) +} + +},{"gl-shader":132,"glslify":231}],91:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createLinePlot + +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var createTexture = _glvis_('gl-texture2d') + +var UINT8_VIEW = new Uint8Array(4) +var FLOAT_VIEW = new Float32Array(UINT8_VIEW.buffer) +// https://github.com/mikolalysenko/glsl-read-float/blob/master/index.js +function unpackFloat(x, y, z, w) { + UINT8_VIEW[0] = w + UINT8_VIEW[1] = z + UINT8_VIEW[2] = y + UINT8_VIEW[3] = x + return FLOAT_VIEW[0] +} + +var bsearch = _glvis_('binary-search-bounds') +var ndarray = _glvis_('ndarray') +var shaders = _glvis_('./lib/shaders') + +var createShader = shaders.createShader +var createPickShader = shaders.createPickShader + +var identity = [1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1] + +function distance (a, b) { + var s = 0.0 + for (var i = 0; i < 3; ++i) { + var d = a[i] - b[i] + s += d * d + } + return Math.sqrt(s) +} + +function filterClipBounds (bounds) { + var result = [[-1e6, -1e6, -1e6], [1e6, 1e6, 1e6]] + for (var i = 0; i < 3; ++i) { + result[0][i] = Math.max(bounds[0][i], result[0][i]) + result[1][i] = Math.min(bounds[1][i], result[1][i]) + } + return result +} + +function PickResult (tau, position, index, dataCoordinate) { + this.arcLength = tau + this.position = position + this.index = index + this.dataCoordinate = dataCoordinate +} + +function LinePlot (gl, shader, pickShader, buffer, vao, texture) { + this.gl = gl + this.shader = shader + this.pickShader = pickShader + this.buffer = buffer + this.vao = vao + this.clipBounds = [ + [ -Infinity, -Infinity, -Infinity ], + [ Infinity, Infinity, Infinity ]] + this.points = [] + this.arcLength = [] + this.vertexCount = 0 + this.bounds = [[0, 0, 0], [0, 0, 0]] + this.pickId = 0 + this.lineWidth = 1 + this.texture = texture + this.dashScale = 1 + this.opacity = 1 + this.hasAlpha = false + this.dirty = true + this.pixelRatio = 1 +} + +var proto = LinePlot.prototype + +proto.isTransparent = function () { + return this.hasAlpha +} + +proto.isOpaque = function () { + return !this.hasAlpha +} + +proto.pickSlots = 1 + +proto.setPickBase = function (id) { + this.pickId = id +} + +proto.drawTransparent = proto.draw = function (camera) { + if (!this.vertexCount) return + var gl = this.gl + var shader = this.shader + var vao = this.vao + shader.bind() + shader.uniforms = { + model: camera.model || identity, + view: camera.view || identity, + projection: camera.projection || identity, + clipBounds: filterClipBounds(this.clipBounds), + dashTexture: this.texture.bind(), + dashScale: this.dashScale / this.arcLength[this.arcLength.length - 1], + opacity: this.opacity, + screenShape: [gl.drawingBufferWidth, gl.drawingBufferHeight], + pixelRatio: this.pixelRatio + } + vao.bind() + vao.draw(gl.TRIANGLE_STRIP, this.vertexCount) + vao.unbind() +} + +proto.drawPick = function (camera) { + if (!this.vertexCount) return + var gl = this.gl + var shader = this.pickShader + var vao = this.vao + shader.bind() + shader.uniforms = { + model: camera.model || identity, + view: camera.view || identity, + projection: camera.projection || identity, + pickId: this.pickId, + clipBounds: filterClipBounds(this.clipBounds), + screenShape: [gl.drawingBufferWidth, gl.drawingBufferHeight], + pixelRatio: this.pixelRatio + } + vao.bind() + vao.draw(gl.TRIANGLE_STRIP, this.vertexCount) + vao.unbind() +} + +proto.update = function (options) { + var i, j + + this.dirty = true + + var connectGaps = !!options.connectGaps + + if ('dashScale' in options) { + this.dashScale = options.dashScale + } + + this.hasAlpha = false // default to no transparent draw + if ('opacity' in options) { + this.opacity = +options.opacity + if(this.opacity < 1) { + this.hasAlpha = true; + } + } + + // Recalculate buffer data + var buffer = [] + var arcLengthArray = [] + var pointArray = [] + var arcLength = 0.0 + var vertexCount = 0 + var bounds = [ + [ Infinity, Infinity, Infinity ], + [ -Infinity, -Infinity, -Infinity ]] + + var positions = options.position || options.positions + if (positions) { + + // Default color + var colors = options.color || options.colors || [0, 0, 0, 1] + + var lineWidth = options.lineWidth || 1 + + var hadGap = false + + fill_loop: + for (i = 1; i < positions.length; ++i) { + var a = positions[i - 1] + var b = positions[i] + + arcLengthArray.push(arcLength) + pointArray.push(a.slice()) + + for (j = 0; j < 3; ++j) { + if (isNaN(a[j]) || isNaN(b[j]) || + !isFinite(a[j]) || !isFinite(b[j])) { + + if (!connectGaps && buffer.length > 0) { + for (var k = 0; k < 24; ++k) { + buffer.push(buffer[buffer.length - 12]) + } + vertexCount += 2 + hadGap = true + } + + continue fill_loop + } + bounds[0][j] = Math.min(bounds[0][j], a[j], b[j]) + bounds[1][j] = Math.max(bounds[1][j], a[j], b[j]) + } + + var acolor, bcolor + if (Array.isArray(colors[0])) { + acolor = (colors.length > i - 1) ? colors[i - 1] : // using index value + (colors.length > 0) ? colors[colors.length - 1] : // using last item + [0, 0, 0, 1]; // using black + + bcolor = (colors.length > i) ? colors[i] : // using index value + (colors.length > 0) ? colors[colors.length - 1] : // using last item + [0, 0, 0, 1]; // using black + } else { + acolor = bcolor = colors + } + + if (acolor.length === 3) { + acolor = [acolor[0], acolor[1], acolor[2], 1] + } + if (bcolor.length === 3) { + bcolor = [bcolor[0], bcolor[1], bcolor[2], 1] + } + + if(!this.hasAlpha && acolor[3] < 1) this.hasAlpha = true + + var w0 + if (Array.isArray(lineWidth)) { + w0 = (lineWidth.length > i - 1) ? lineWidth[i - 1] : // using index value + (lineWidth.length > 0) ? lineWidth[lineWidth.length - 1] : // using last item + [0, 0, 0, 1]; // using black + } else { + w0 = lineWidth + } + + var t0 = arcLength + arcLength += distance(a, b) + + if (hadGap) { + for (j = 0; j < 2; ++j) { + buffer.push( + a[0], a[1], a[2], b[0], b[1], b[2], t0, w0, acolor[0], acolor[1], acolor[2], acolor[3]) + } + vertexCount += 2 + hadGap = false + } + + buffer.push( + a[0], a[1], a[2], b[0], b[1], b[2], t0, w0, acolor[0], acolor[1], acolor[2], acolor[3], + a[0], a[1], a[2], b[0], b[1], b[2], t0, -w0, acolor[0], acolor[1], acolor[2], acolor[3], + b[0], b[1], b[2], a[0], a[1], a[2], arcLength, -w0, bcolor[0], bcolor[1], bcolor[2], bcolor[3], + b[0], b[1], b[2], a[0], a[1], a[2], arcLength, w0, bcolor[0], bcolor[1], bcolor[2], bcolor[3]) + + vertexCount += 4 + } + } + this.buffer.update(buffer) + + arcLengthArray.push(arcLength) + pointArray.push(positions[positions.length - 1].slice()) + + this.bounds = bounds + + this.vertexCount = vertexCount + + this.points = pointArray + this.arcLength = arcLengthArray + + if ('dashes' in options) { + var dashArray = options.dashes + + // Calculate prefix sum + var prefixSum = dashArray.slice() + prefixSum.unshift(0) + for (i = 1; i < prefixSum.length; ++i) { + prefixSum[i] = prefixSum[i - 1] + prefixSum[i] + } + + var dashTexture = ndarray(new Array(256 * 4), [256, 1, 4]) + for (i = 0; i < 256; ++i) { + for (j = 0; j < 4; ++j) { + dashTexture.set(i, 0, j, 0) + } + if (bsearch.le(prefixSum, prefixSum[prefixSum.length - 1] * i / 255.0) & 1) { + dashTexture.set(i, 0, 0, 0) + } else { + dashTexture.set(i, 0, 0, 255) + } + } + + this.texture.setPixels(dashTexture) + } +} + +proto.dispose = function () { + this.shader.dispose() + this.vao.dispose() + this.buffer.dispose() +} + +proto.pick = function (selection) { + if (!selection) { + return null + } + if (selection.id !== this.pickId) { + return null + } + var tau = unpackFloat( + selection.value[0], + selection.value[1], + selection.value[2], + 0) + var index = bsearch.le(this.arcLength, tau) + if (index < 0) { + return null + } + if (index === this.arcLength.length - 1) { + return new PickResult( + this.arcLength[this.arcLength.length - 1], + this.points[this.points.length - 1].slice(), + index) + } + var a = this.points[index] + var b = this.points[Math.min(index + 1, this.points.length - 1)] + var t = (tau - this.arcLength[index]) / (this.arcLength[index + 1] - this.arcLength[index]) + var ti = 1.0 - t + var x = [0, 0, 0] + for (var i = 0; i < 3; ++i) { + x[i] = ti * a[i] + t * b[i] + } + var dataIndex = Math.min((t < 0.5) ? index : (index + 1), this.points.length - 1) + return new PickResult( + tau, + x, + dataIndex, + this.points[dataIndex]) +} + +function createLinePlot (options) { + var gl = options.gl || (options.scene && options.scene.gl) + + var shader = createShader(gl) + shader.attributes.position.location = 0 + shader.attributes.nextPosition.location = 1 + shader.attributes.arcLength.location = 2 + shader.attributes.lineWidth.location = 3 + shader.attributes.color.location = 4 + + var pickShader = createPickShader(gl) + pickShader.attributes.position.location = 0 + pickShader.attributes.nextPosition.location = 1 + pickShader.attributes.arcLength.location = 2 + pickShader.attributes.lineWidth.location = 3 + pickShader.attributes.color.location = 4 + + var buffer = createBuffer(gl) + var vao = createVAO(gl, [ + { + 'buffer': buffer, + 'size': 3, + 'offset': 0, + 'stride': 48 + }, + { + 'buffer': buffer, + 'size': 3, + 'offset': 12, + 'stride': 48 + }, + { + 'buffer': buffer, + 'size': 1, + 'offset': 24, + 'stride': 48 + }, + { + 'buffer': buffer, + 'size': 1, + 'offset': 28, + 'stride': 48 + }, + { + 'buffer': buffer, + 'size': 4, + 'offset': 32, + 'stride': 48 + } + ]) + + // Create texture for dash pattern + var defaultTexture = ndarray(new Array(256 * 4), [256, 1, 4]) + for (var i = 0; i < 256 * 4; ++i) { + defaultTexture.data[i] = 255 + } + var texture = createTexture(gl, defaultTexture) + texture.wrap = gl.REPEAT + + var linePlot = new LinePlot(gl, shader, pickShader, buffer, vao, texture) + linePlot.update(options) + return linePlot +} + +},{"./lib/shaders":90,"binary-search-bounds":31,"gl-buffer":78,"gl-texture2d":146,"gl-vao":150,"ndarray":259}],92:[function(_glvis_,module,exports){ +module.exports = clone; + +/** + * Creates a new mat4 initialized with values from an existing matrix + * + * @param {mat4} a matrix to clone + * @returns {mat4} a new 4x4 matrix + */ +function clone(a) { + var out = new Float32Array(16); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +}; +},{}],93:[function(_glvis_,module,exports){ +module.exports = create; + +/** + * Creates a new identity mat4 + * + * @returns {mat4} a new 4x4 matrix + */ +function create() { + var out = new Float32Array(16); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +}; +},{}],94:[function(_glvis_,module,exports){ +module.exports = determinant; + +/** + * Calculates the determinant of a mat4 + * + * @param {mat4} a the source matrix + * @returns {Number} determinant of a + */ +function determinant(a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], + + b00 = a00 * a11 - a01 * a10, + b01 = a00 * a12 - a02 * a10, + b02 = a00 * a13 - a03 * a10, + b03 = a01 * a12 - a02 * a11, + b04 = a01 * a13 - a03 * a11, + b05 = a02 * a13 - a03 * a12, + b06 = a20 * a31 - a21 * a30, + b07 = a20 * a32 - a22 * a30, + b08 = a20 * a33 - a23 * a30, + b09 = a21 * a32 - a22 * a31, + b10 = a21 * a33 - a23 * a31, + b11 = a22 * a33 - a23 * a32; + + // Calculate the determinant + return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; +}; +},{}],95:[function(_glvis_,module,exports){ +module.exports = fromQuat; + +/** + * Creates a matrix from a quaternion rotation. + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @returns {mat4} out + */ +function fromQuat(out, q) { + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + yx = y * x2, + yy = y * y2, + zx = z * x2, + zy = z * y2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2; + + out[0] = 1 - yy - zz; + out[1] = yx + wz; + out[2] = zx - wy; + out[3] = 0; + + out[4] = yx - wz; + out[5] = 1 - xx - zz; + out[6] = zy + wx; + out[7] = 0; + + out[8] = zx + wy; + out[9] = zy - wx; + out[10] = 1 - xx - yy; + out[11] = 0; + + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + + return out; +}; +},{}],96:[function(_glvis_,module,exports){ +module.exports = fromRotationTranslation; + +/** + * Creates a matrix from a quaternion rotation and vector translation + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * var quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @returns {mat4} out + */ +function fromRotationTranslation(out, q, v) { + // Quaternion math + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + xy = x * y2, + xz = x * z2, + yy = y * y2, + yz = y * z2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2; + + out[0] = 1 - (yy + zz); + out[1] = xy + wz; + out[2] = xz - wy; + out[3] = 0; + out[4] = xy - wz; + out[5] = 1 - (xx + zz); + out[6] = yz + wx; + out[7] = 0; + out[8] = xz + wy; + out[9] = yz - wx; + out[10] = 1 - (xx + yy); + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + + return out; +}; +},{}],97:[function(_glvis_,module,exports){ +module.exports = identity; + +/** + * Set a mat4 to the identity matrix + * + * @param {mat4} out the receiving matrix + * @returns {mat4} out + */ +function identity(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +}; +},{}],98:[function(_glvis_,module,exports){ +module.exports = invert; + +/** + * Inverts a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function invert(out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], + + b00 = a00 * a11 - a01 * a10, + b01 = a00 * a12 - a02 * a10, + b02 = a00 * a13 - a03 * a10, + b03 = a01 * a12 - a02 * a11, + b04 = a01 * a13 - a03 * a11, + b05 = a02 * a13 - a03 * a12, + b06 = a20 * a31 - a21 * a30, + b07 = a20 * a32 - a22 * a30, + b08 = a20 * a33 - a23 * a30, + b09 = a21 * a32 - a22 * a31, + b10 = a21 * a33 - a23 * a31, + b11 = a22 * a33 - a23 * a32, + + // Calculate the determinant + det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det; + out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det; + out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det; + out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det; + out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det; + out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det; + out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det; + out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det; + out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det; + out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det; + out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det; + out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det; + out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det; + out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det; + out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det; + out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det; + + return out; +}; +},{}],99:[function(_glvis_,module,exports){ +var identity = _glvis_('./identity'); + +module.exports = lookAt; + +/** + * Generates a look-at matrix with the given eye position, focal point, and up axis + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {vec3} eye Position of the viewer + * @param {vec3} center Point the viewer is looking at + * @param {vec3} up vec3 pointing up + * @returns {mat4} out + */ +function lookAt(out, eye, center, up) { + var x0, x1, x2, y0, y1, y2, z0, z1, z2, len, + eyex = eye[0], + eyey = eye[1], + eyez = eye[2], + upx = up[0], + upy = up[1], + upz = up[2], + centerx = center[0], + centery = center[1], + centerz = center[2]; + + if (Math.abs(eyex - centerx) < 0.000001 && + Math.abs(eyey - centery) < 0.000001 && + Math.abs(eyez - centerz) < 0.000001) { + return identity(out); + } + + z0 = eyex - centerx; + z1 = eyey - centery; + z2 = eyez - centerz; + + len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2); + z0 *= len; + z1 *= len; + z2 *= len; + + x0 = upy * z2 - upz * z1; + x1 = upz * z0 - upx * z2; + x2 = upx * z1 - upy * z0; + len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2); + if (!len) { + x0 = 0; + x1 = 0; + x2 = 0; + } else { + len = 1 / len; + x0 *= len; + x1 *= len; + x2 *= len; + } + + y0 = z1 * x2 - z2 * x1; + y1 = z2 * x0 - z0 * x2; + y2 = z0 * x1 - z1 * x0; + + len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2); + if (!len) { + y0 = 0; + y1 = 0; + y2 = 0; + } else { + len = 1 / len; + y0 *= len; + y1 *= len; + y2 *= len; + } + + out[0] = x0; + out[1] = y0; + out[2] = z0; + out[3] = 0; + out[4] = x1; + out[5] = y1; + out[6] = z1; + out[7] = 0; + out[8] = x2; + out[9] = y2; + out[10] = z2; + out[11] = 0; + out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez); + out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez); + out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez); + out[15] = 1; + + return out; +}; +},{"./identity":97}],100:[function(_glvis_,module,exports){ +module.exports = multiply; + +/** + * Multiplies two mat4's + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the first operand + * @param {mat4} b the second operand + * @returns {mat4} out + */ +function multiply(out, a, b) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + // Cache only the current line of the second matrix + var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7]; + out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11]; + out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15]; + out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + return out; +}; +},{}],101:[function(_glvis_,module,exports){ +module.exports = ortho; + +/** + * Generates a orthogonal projection matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {number} left Left bound of the frustum + * @param {number} right Right bound of the frustum + * @param {number} bottom Bottom bound of the frustum + * @param {number} top Top bound of the frustum + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ +function ortho(out, left, right, bottom, top, near, far) { + var lr = 1 / (left - right), + bt = 1 / (bottom - top), + nf = 1 / (near - far); + out[0] = -2 * lr; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = -2 * bt; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 2 * nf; + out[11] = 0; + out[12] = (left + right) * lr; + out[13] = (top + bottom) * bt; + out[14] = (far + near) * nf; + out[15] = 1; + return out; +}; +},{}],102:[function(_glvis_,module,exports){ +module.exports = perspective; + +/** + * Generates a perspective projection matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {number} fovy Vertical field of view in radians + * @param {number} aspect Aspect ratio. typically viewport width/height + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ +function perspective(out, fovy, aspect, near, far) { + var f = 1.0 / Math.tan(fovy / 2), + nf = 1 / (near - far); + out[0] = f / aspect; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = f; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = (far + near) * nf; + out[11] = -1; + out[12] = 0; + out[13] = 0; + out[14] = (2 * far * near) * nf; + out[15] = 0; + return out; +}; +},{}],103:[function(_glvis_,module,exports){ +module.exports = rotate; + +/** + * Rotates a mat4 by the given angle + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @param {vec3} axis the axis to rotate around + * @returns {mat4} out + */ +function rotate(out, a, rad, axis) { + var x = axis[0], y = axis[1], z = axis[2], + len = Math.sqrt(x * x + y * y + z * z), + s, c, t, + a00, a01, a02, a03, + a10, a11, a12, a13, + a20, a21, a22, a23, + b00, b01, b02, + b10, b11, b12, + b20, b21, b22; + + if (Math.abs(len) < 0.000001) { return null; } + + len = 1 / len; + x *= len; + y *= len; + z *= len; + + s = Math.sin(rad); + c = Math.cos(rad); + t = 1 - c; + + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + // Construct the elements of the rotation matrix + b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s; + b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s; + b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c; + + // Perform rotation-specific matrix multiplication + out[0] = a00 * b00 + a10 * b01 + a20 * b02; + out[1] = a01 * b00 + a11 * b01 + a21 * b02; + out[2] = a02 * b00 + a12 * b01 + a22 * b02; + out[3] = a03 * b00 + a13 * b01 + a23 * b02; + out[4] = a00 * b10 + a10 * b11 + a20 * b12; + out[5] = a01 * b10 + a11 * b11 + a21 * b12; + out[6] = a02 * b10 + a12 * b11 + a22 * b12; + out[7] = a03 * b10 + a13 * b11 + a23 * b12; + out[8] = a00 * b20 + a10 * b21 + a20 * b22; + out[9] = a01 * b20 + a11 * b21 + a21 * b22; + out[10] = a02 * b20 + a12 * b21 + a22 * b22; + out[11] = a03 * b20 + a13 * b21 + a23 * b22; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + return out; +}; +},{}],104:[function(_glvis_,module,exports){ +module.exports = rotateX; + +/** + * Rotates a matrix by the given angle around the X axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateX(out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a10 = a[4], + a11 = a[5], + a12 = a[6], + a13 = a[7], + a20 = a[8], + a21 = a[9], + a22 = a[10], + a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[4] = a10 * c + a20 * s; + out[5] = a11 * c + a21 * s; + out[6] = a12 * c + a22 * s; + out[7] = a13 * c + a23 * s; + out[8] = a20 * c - a10 * s; + out[9] = a21 * c - a11 * s; + out[10] = a22 * c - a12 * s; + out[11] = a23 * c - a13 * s; + return out; +}; +},{}],105:[function(_glvis_,module,exports){ +module.exports = rotateY; + +/** + * Rotates a matrix by the given angle around the Y axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateY(out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a00 = a[0], + a01 = a[1], + a02 = a[2], + a03 = a[3], + a20 = a[8], + a21 = a[9], + a22 = a[10], + a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c - a20 * s; + out[1] = a01 * c - a21 * s; + out[2] = a02 * c - a22 * s; + out[3] = a03 * c - a23 * s; + out[8] = a00 * s + a20 * c; + out[9] = a01 * s + a21 * c; + out[10] = a02 * s + a22 * c; + out[11] = a03 * s + a23 * c; + return out; +}; +},{}],106:[function(_glvis_,module,exports){ +module.exports = rotateZ; + +/** + * Rotates a matrix by the given angle around the Z axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ +function rotateZ(out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a00 = a[0], + a01 = a[1], + a02 = a[2], + a03 = a[3], + a10 = a[4], + a11 = a[5], + a12 = a[6], + a13 = a[7]; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c + a10 * s; + out[1] = a01 * c + a11 * s; + out[2] = a02 * c + a12 * s; + out[3] = a03 * c + a13 * s; + out[4] = a10 * c - a00 * s; + out[5] = a11 * c - a01 * s; + out[6] = a12 * c - a02 * s; + out[7] = a13 * c - a03 * s; + return out; +}; +},{}],107:[function(_glvis_,module,exports){ +module.exports = scale; + +/** + * Scales the mat4 by the dimensions in the given vec3 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to scale + * @param {vec3} v the vec3 to scale the matrix by + * @returns {mat4} out + **/ +function scale(out, a, v) { + var x = v[0], y = v[1], z = v[2]; + + out[0] = a[0] * x; + out[1] = a[1] * x; + out[2] = a[2] * x; + out[3] = a[3] * x; + out[4] = a[4] * y; + out[5] = a[5] * y; + out[6] = a[6] * y; + out[7] = a[7] * y; + out[8] = a[8] * z; + out[9] = a[9] * z; + out[10] = a[10] * z; + out[11] = a[11] * z; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +}; +},{}],108:[function(_glvis_,module,exports){ +module.exports = translate; + +/** + * Translate a mat4 by the given vector + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to translate + * @param {vec3} v vector to translate by + * @returns {mat4} out + */ +function translate(out, a, v) { + var x = v[0], y = v[1], z = v[2], + a00, a01, a02, a03, + a10, a11, a12, a13, + a20, a21, a22, a23; + + if (a === out) { + out[12] = a[0] * x + a[4] * y + a[8] * z + a[12]; + out[13] = a[1] * x + a[5] * y + a[9] * z + a[13]; + out[14] = a[2] * x + a[6] * y + a[10] * z + a[14]; + out[15] = a[3] * x + a[7] * y + a[11] * z + a[15]; + } else { + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03; + out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13; + out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23; + + out[12] = a00 * x + a10 * y + a20 * z + a[12]; + out[13] = a01 * x + a11 * y + a21 * z + a[13]; + out[14] = a02 * x + a12 * y + a22 * z + a[14]; + out[15] = a03 * x + a13 * y + a23 * z + a[15]; + } + + return out; +}; +},{}],109:[function(_glvis_,module,exports){ +module.exports = transpose; + +/** + * Transpose the values of a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ +function transpose(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if (out === a) { + var a01 = a[1], a02 = a[2], a03 = a[3], + a12 = a[6], a13 = a[7], + a23 = a[11]; + + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a01; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a02; + out[9] = a12; + out[11] = a[14]; + out[12] = a03; + out[13] = a13; + out[14] = a23; + } else { + out[0] = a[0]; + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a[1]; + out[5] = a[5]; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a[2]; + out[9] = a[6]; + out[10] = a[10]; + out[11] = a[14]; + out[12] = a[3]; + out[13] = a[7]; + out[14] = a[11]; + out[15] = a[15]; + } + + return out; +}; +},{}],110:[function(_glvis_,module,exports){ +'use strict' + +var barycentric = _glvis_('barycentric') +var closestPointToTriangle = _glvis_('polytope-closest-point/lib/closest_point_2d.js') + +module.exports = closestPointToPickLocation + +function xformMatrix(m, v) { + var out = [0,0,0,0] + for(var i=0; i<4; ++i) { + for(var j=0; j<4; ++j) { + out[j] += m[4*i + j] * v[i] + } + } + return out +} + +function projectVertex(v, model, view, projection, resolution) { + var p = xformMatrix(projection, + xformMatrix(view, + xformMatrix(model, [v[0], v[1], v[2], 1]))) + for(var i=0; i<3; ++i) { + p[i] /= p[3] + } + return [ 0.5 * resolution[0] * (1.0+p[0]), 0.5 * resolution[1] * (1.0-p[1]) ] +} + +function barycentricCoord(simplex, point) { + if(simplex.length === 2) { + var d0 = 0.0 + var d1 = 0.0 + for(var i=0; i<2; ++i) { + d0 += Math.pow(point[i] - simplex[0][i], 2) + d1 += Math.pow(point[i] - simplex[1][i], 2) + } + d0 = Math.sqrt(d0) + d1 = Math.sqrt(d1) + if(d0+d1 < 1e-6) { + return [1,0] + } + return [d1/(d0+d1),d0/(d1+d0)] + } else if(simplex.length === 3) { + var closestPoint = [0,0] + closestPointToTriangle(simplex[0], simplex[1], simplex[2], point, closestPoint) + return barycentric(simplex, closestPoint) + } + return [] +} + +function interpolate(simplex, weights) { + var result = [0,0,0] + for(var i=0; i 1.0001) { + return null + } + s += weights[i] + } + if(Math.abs(s - 1.0) > 0.001) { + return null + } + return [closestIndex, interpolate(simplex, weights), weights] +} +},{"barycentric":14,"polytope-closest-point/lib/closest_point_2d.js":270}],111:[function(_glvis_,module,exports){ +var glslify = _glvis_('glslify') + +var triVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position, normal;\nattribute vec4 color;\nattribute vec2 uv;\n\nuniform mat4 model\n , view\n , projection\n , inverseModel;\nuniform vec3 eyePosition\n , lightPosition;\n\nvarying vec3 f_normal\n , f_lightDirection\n , f_eyeDirection\n , f_data;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvec4 project(vec3 p) {\n return projection * view * model * vec4(p, 1.0);\n}\n\nvoid main() {\n gl_Position = project(position);\n\n //Lighting geometry parameters\n vec4 cameraCoordinate = view * vec4(position , 1.0);\n cameraCoordinate.xyz /= cameraCoordinate.w;\n f_lightDirection = lightPosition - cameraCoordinate.xyz;\n f_eyeDirection = eyePosition - cameraCoordinate.xyz;\n f_normal = normalize((vec4(normal, 0.0) * inverseModel).xyz);\n\n f_color = color;\n f_data = position;\n f_uv = uv;\n}\n"]) +var triFragSrc = glslify(["#extension GL_OES_standard_derivatives : enable\n\nprecision highp float;\n#define GLSLIFY 1\n\nfloat beckmannDistribution(float x, float roughness) {\n float NdotH = max(x, 0.0001);\n float cos2Alpha = NdotH * NdotH;\n float tan2Alpha = (cos2Alpha - 1.0) / cos2Alpha;\n float roughness2 = roughness * roughness;\n float denom = 3.141592653589793 * roughness2 * cos2Alpha * cos2Alpha;\n return exp(tan2Alpha / roughness2) / denom;\n}\n\nfloat cookTorranceSpecular(\n vec3 lightDirection,\n vec3 viewDirection,\n vec3 surfaceNormal,\n float roughness,\n float fresnel) {\n\n float VdotN = max(dot(viewDirection, surfaceNormal), 0.0);\n float LdotN = max(dot(lightDirection, surfaceNormal), 0.0);\n\n //Half angle vector\n vec3 H = normalize(lightDirection + viewDirection);\n\n //Geometric term\n float NdotH = max(dot(surfaceNormal, H), 0.0);\n float VdotH = max(dot(viewDirection, H), 0.000001);\n float LdotH = max(dot(lightDirection, H), 0.000001);\n float G1 = (2.0 * NdotH * VdotN) / VdotH;\n float G2 = (2.0 * NdotH * LdotN) / LdotH;\n float G = min(1.0, min(G1, G2));\n \n //Distribution term\n float D = beckmannDistribution(NdotH, roughness);\n\n //Fresnel term\n float F = pow(1.0 - VdotN, fresnel);\n\n //Multiply terms and done\n return G * F * D / max(3.14159265 * VdotN, 0.000001);\n}\n\n//#pragma glslify: beckmann = require(glsl-specular-beckmann) // used in gl-surface3d\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float roughness\n , fresnel\n , kambient\n , kdiffuse\n , kspecular;\nuniform sampler2D texture;\n\nvarying vec3 f_normal\n , f_lightDirection\n , f_eyeDirection\n , f_data;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n if (f_color.a == 0.0 ||\n outOfRange(clipBounds[0], clipBounds[1], f_data)\n ) discard;\n\n vec3 N = normalize(f_normal);\n vec3 L = normalize(f_lightDirection);\n vec3 V = normalize(f_eyeDirection);\n\n if(gl_FrontFacing) {\n N = -N;\n }\n\n float specular = min(1.0, max(0.0, cookTorranceSpecular(L, V, N, roughness, fresnel)));\n //float specular = max(0.0, beckmann(L, V, N, roughness)); // used in gl-surface3d\n\n float diffuse = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n vec4 surfaceColor = vec4(f_color.rgb, 1.0) * texture2D(texture, f_uv);\n vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular, 1.0);\n\n gl_FragColor = litColor * f_color.a;\n}\n"]) +var edgeVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 uv;\n\nuniform mat4 model, view, projection;\n\nvarying vec4 f_color;\nvarying vec3 f_data;\nvarying vec2 f_uv;\n\nvoid main() {\n gl_Position = projection * view * model * vec4(position, 1.0);\n f_color = color;\n f_data = position;\n f_uv = uv;\n}"]) +var edgeFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform sampler2D texture;\nuniform float opacity;\n\nvarying vec4 f_color;\nvarying vec3 f_data;\nvarying vec2 f_uv;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], f_data)) discard;\n\n gl_FragColor = f_color * texture2D(texture, f_uv) * opacity;\n}"]) +var pointVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 uv;\nattribute float pointSize;\n\nuniform mat4 model, view, projection;\nuniform vec3 clipBounds[2];\n\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n gl_Position = vec4(0.0, 0.0 ,0.0 ,0.0);\n } else {\n gl_Position = projection * view * model * vec4(position, 1.0);\n }\n gl_PointSize = pointSize;\n f_color = color;\n f_uv = uv;\n}"]) +var pointFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nuniform sampler2D texture;\nuniform float opacity;\n\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n vec2 pointR = gl_PointCoord.xy - vec2(0.5, 0.5);\n if(dot(pointR, pointR) > 0.25) {\n discard;\n }\n gl_FragColor = f_color * texture2D(texture, f_uv) * opacity;\n}"]) +var pickVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n gl_Position = projection * view * model * vec4(position, 1.0);\n f_id = id;\n f_position = position;\n}"]) +var pickFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float pickId;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n\n gl_FragColor = vec4(pickId, f_id.xyz);\n}"]) +var pickPointVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute float pointSize;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\nuniform vec3 clipBounds[2];\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n gl_Position = vec4(0.0, 0.0, 0.0, 0.0);\n } else {\n gl_Position = projection * view * model * vec4(position, 1.0);\n gl_PointSize = pointSize;\n }\n f_id = id;\n f_position = position;\n}"]) +var contourVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\n\nuniform mat4 model, view, projection;\n\nvoid main() {\n gl_Position = projection * view * model * vec4(position, 1.0);\n}"]) +var contourFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nuniform vec3 contourColor;\n\nvoid main() {\n gl_FragColor = vec4(contourColor, 1.0);\n}\n"]) + +exports.meshShader = { + vertex: triVertSrc, + fragment: triFragSrc, + attributes: [ + {name: 'position', type: 'vec3'}, + {name: 'normal', type: 'vec3'}, + {name: 'color', type: 'vec4'}, + {name: 'uv', type: 'vec2'} + ] +} +exports.wireShader = { + vertex: edgeVertSrc, + fragment: edgeFragSrc, + attributes: [ + {name: 'position', type: 'vec3'}, + {name: 'color', type: 'vec4'}, + {name: 'uv', type: 'vec2'} + ] +} +exports.pointShader = { + vertex: pointVertSrc, + fragment: pointFragSrc, + attributes: [ + {name: 'position', type: 'vec3'}, + {name: 'color', type: 'vec4'}, + {name: 'uv', type: 'vec2'}, + {name: 'pointSize', type: 'float'} + ] +} +exports.pickShader = { + vertex: pickVertSrc, + fragment: pickFragSrc, + attributes: [ + {name: 'position', type: 'vec3'}, + {name: 'id', type: 'vec4'} + ] +} +exports.pointPickShader = { + vertex: pickPointVertSrc, + fragment: pickFragSrc, + attributes: [ + {name: 'position', type: 'vec3'}, + {name: 'pointSize', type: 'float'}, + {name: 'id', type: 'vec4'} + ] +} +exports.contourShader = { + vertex: contourVertSrc, + fragment: contourFragSrc, + attributes: [ + {name: 'position', type: 'vec3'} + ] +} + +},{"glslify":231}],112:[function(_glvis_,module,exports){ +'use strict' + +var DEFAULT_VERTEX_NORMALS_EPSILON = 1e-6; // may be too large if triangles are very small +var DEFAULT_FACE_NORMALS_EPSILON = 1e-6; + +var createShader = _glvis_('gl-shader') +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var createTexture = _glvis_('gl-texture2d') +var normals = _glvis_('normals') +var multiply = _glvis_('gl-mat4/multiply') +var invert = _glvis_('gl-mat4/invert') +var ndarray = _glvis_('ndarray') +var colormap = _glvis_('colormap') +var getContour = _glvis_('simplicial-complex-contour') +var pool = _glvis_('typedarray-pool') +var shaders = _glvis_('./lib/shaders') +var closestPoint = _glvis_('./lib/closest-point') + +var meshShader = shaders.meshShader +var wireShader = shaders.wireShader +var pointShader = shaders.pointShader +var pickShader = shaders.pickShader +var pointPickShader = shaders.pointPickShader +var contourShader = shaders.contourShader + +var IDENTITY = [ + 1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 0,0,0,1] + + +function SimplicialMesh(gl + , texture + , triShader + , lineShader + , pointShader + , pickShader + , pointPickShader + , contourShader + , trianglePositions + , triangleIds + , triangleColors + , triangleUVs + , triangleNormals + , triangleVAO + , edgePositions + , edgeIds + , edgeColors + , edgeUVs + , edgeVAO + , pointPositions + , pointIds + , pointColors + , pointUVs + , pointSizes + , pointVAO + , contourPositions + , contourVAO) { + + this.gl = gl + this.pixelRatio = 1 + this.cells = [] + this.positions = [] + this.intensity = [] + this.texture = texture + this.dirty = true + + this.triShader = triShader + this.lineShader = lineShader + this.pointShader = pointShader + this.pickShader = pickShader + this.pointPickShader = pointPickShader + this.contourShader = contourShader + + this.trianglePositions = trianglePositions + this.triangleColors = triangleColors + this.triangleNormals = triangleNormals + this.triangleUVs = triangleUVs + this.triangleIds = triangleIds + this.triangleVAO = triangleVAO + this.triangleCount = 0 + + this.lineWidth = 1 + this.edgePositions = edgePositions + this.edgeColors = edgeColors + this.edgeUVs = edgeUVs + this.edgeIds = edgeIds + this.edgeVAO = edgeVAO + this.edgeCount = 0 + + this.pointPositions = pointPositions + this.pointColors = pointColors + this.pointUVs = pointUVs + this.pointSizes = pointSizes + this.pointIds = pointIds + this.pointVAO = pointVAO + this.pointCount = 0 + + this.contourLineWidth = 1 + this.contourPositions = contourPositions + this.contourVAO = contourVAO + this.contourCount = 0 + this.contourColor = [0,0,0] + this.contourEnable = true + + this.pickVertex = true; + this.pickId = 1 + this.bounds = [ + [ Infinity, Infinity, Infinity], + [-Infinity,-Infinity,-Infinity] ] + this.clipBounds = [ + [-Infinity,-Infinity,-Infinity], + [ Infinity, Infinity, Infinity] ] + + this.lightPosition = [1e5, 1e5, 0] + this.ambientLight = 0.8 + this.diffuseLight = 0.8 + this.specularLight = 2.0 + this.roughness = 0.5 + this.fresnel = 1.5 + + this.opacity = 1.0 + this.hasAlpha = false + this.opacityscale = false + + this._model = IDENTITY + this._view = IDENTITY + this._projection = IDENTITY + this._resolution = [1,1] +} + +var proto = SimplicialMesh.prototype + +proto.isOpaque = function() { + return !this.hasAlpha +} + +proto.isTransparent = function() { + return this.hasAlpha +} + +proto.pickSlots = 1 + +proto.setPickBase = function(id) { + this.pickId = id +} + +function getOpacityFromScale(ratio, opacityscale) { + + if(!opacityscale) return 1 + if(!opacityscale.length) return 1 + + for(var i = 0; i < opacityscale.length; ++i) { + if(opacityscale.length < 2) return 1 + if(opacityscale[i][0] === ratio) return opacityscale[i][1] + if(opacityscale[i][0] > ratio && i > 0) { + var d = (opacityscale[i][0] - ratio) / (opacityscale[i][0] - opacityscale[i - 1][0]) + return opacityscale[i][1] * (1 - d) + d * opacityscale[i - 1][1] + } + } + + return 1 +} + +function genColormap(param, opacityscale) { + var colors = colormap({ + colormap: param + , nshades: 256 + , format: 'rgba' + }) + + var result = new Uint8Array(256*4) + for(var i=0; i<256; ++i) { + var c = colors[i] + for(var j=0; j<3; ++j) { + result[4*i+j] = c[j] + } + if(!opacityscale) { + result[4*i+3] = 255 * c[3] + } else { + result[4*i+3] = 255 * getOpacityFromScale(i / 255.0, opacityscale) + } + } + + return ndarray(result, [256,256,4], [4,0,1]) +} + +function takeZComponent(array) { + var n = array.length + var result = new Array(n) + for(var i=0; i 0) { + var shader = this.triShader + shader.bind() + shader.uniforms = uniforms + + this.triangleVAO.bind() + gl.drawArrays(gl.TRIANGLES, 0, this.triangleCount*3) + this.triangleVAO.unbind() + } + + if(this.edgeCount > 0 && this.lineWidth > 0) { + var shader = this.lineShader + shader.bind() + shader.uniforms = uniforms + + this.edgeVAO.bind() + gl.lineWidth(this.lineWidth * this.pixelRatio) + gl.drawArrays(gl.LINES, 0, this.edgeCount*2) + this.edgeVAO.unbind() + } + + if(this.pointCount > 0) { + var shader = this.pointShader + shader.bind() + shader.uniforms = uniforms + + this.pointVAO.bind() + gl.drawArrays(gl.POINTS, 0, this.pointCount) + this.pointVAO.unbind() + } + + if(this.contourEnable && this.contourCount > 0 && this.contourLineWidth > 0) { + var shader = this.contourShader + shader.bind() + shader.uniforms = uniforms + + this.contourVAO.bind() + gl.drawArrays(gl.LINES, 0, this.contourCount) + this.contourVAO.unbind() + } +} + +proto.drawPick = function(params) { + params = params || {} + + var gl = this.gl + + var model = params.model || IDENTITY + var view = params.view || IDENTITY + var projection = params.projection || IDENTITY + + var clipBounds = [[-1e6,-1e6,-1e6],[1e6,1e6,1e6]] + for(var i=0; i<3; ++i) { + clipBounds[0][i] = Math.max(clipBounds[0][i], this.clipBounds[0][i]) + clipBounds[1][i] = Math.min(clipBounds[1][i], this.clipBounds[1][i]) + } + + //Save camera parameters + this._model = [].slice.call(model) + this._view = [].slice.call(view) + this._projection = [].slice.call(projection) + this._resolution = [gl.drawingBufferWidth, gl.drawingBufferHeight] + + var uniforms = { + model: model, + view: view, + projection: projection, + clipBounds: clipBounds, + pickId: this.pickId / 255.0, + } + + var shader = this.pickShader + shader.bind() + shader.uniforms = uniforms + + if(this.triangleCount > 0) { + this.triangleVAO.bind() + gl.drawArrays(gl.TRIANGLES, 0, this.triangleCount*3) + this.triangleVAO.unbind() + } + + if(this.edgeCount > 0) { + this.edgeVAO.bind() + gl.lineWidth(this.lineWidth * this.pixelRatio) + gl.drawArrays(gl.LINES, 0, this.edgeCount*2) + this.edgeVAO.unbind() + } + + if(this.pointCount > 0) { + var shader = this.pointPickShader + shader.bind() + shader.uniforms = uniforms + + this.pointVAO.bind() + gl.drawArrays(gl.POINTS, 0, this.pointCount) + this.pointVAO.unbind() + } +} + + +proto.pick = function(pickData) { + if(!pickData) { + return null + } + if(pickData.id !== this.pickId) { + return null + } + + var cellId = pickData.value[0] + 256*pickData.value[1] + 65536*pickData.value[2] + var cell = this.cells[cellId] + var positions = this.positions + + var simplex = new Array(cell.length) + for(var i=0; i tickOffset[start]) { + shader.uniforms.dataAxis = DATA_AXIS + shader.uniforms.screenOffset = SCREEN_OFFSET + shader.uniforms.color = textColor[axis] + shader.uniforms.angle = textAngle[axis] + gl.drawArrays( + gl.TRIANGLES, + tickOffset[start], + tickOffset[end] - tickOffset[start]) + } + } + if(labelEnable[axis] && labelCount) { + SCREEN_OFFSET[axis^1] -= screenScale * pixelRatio * labelPad[axis] + shader.uniforms.dataAxis = ZERO_2 + shader.uniforms.screenOffset = SCREEN_OFFSET + shader.uniforms.color = labelColor[axis] + shader.uniforms.angle = labelAngle[axis] + gl.drawArrays( + gl.TRIANGLES, + labelOffset, + labelCount) + } + + SCREEN_OFFSET[axis^1] = screenScale * viewBox[2+(axis^1)] - 1.0 + if(tickEnable[axis+2]) { + SCREEN_OFFSET[axis^1] += screenScale * pixelRatio * tickPad[axis+2] + if(start < end && tickOffset[end] > tickOffset[start]) { + shader.uniforms.dataAxis = DATA_AXIS + shader.uniforms.screenOffset = SCREEN_OFFSET + shader.uniforms.color = textColor[axis+2] + shader.uniforms.angle = textAngle[axis+2] + gl.drawArrays( + gl.TRIANGLES, + tickOffset[start], + tickOffset[end] - tickOffset[start]) + } + } + if(labelEnable[axis+2] && labelCount) { + SCREEN_OFFSET[axis^1] += screenScale * pixelRatio * labelPad[axis+2] + shader.uniforms.dataAxis = ZERO_2 + shader.uniforms.screenOffset = SCREEN_OFFSET + shader.uniforms.color = labelColor[axis+2] + shader.uniforms.angle = labelAngle[axis+2] + gl.drawArrays( + gl.TRIANGLES, + labelOffset, + labelCount) + } + + } +})() + +proto.drawTitle = (function() { + var DATA_AXIS = [0,0] + var SCREEN_OFFSET = [0,0] + + return function() { + var plot = this.plot + var shader = this.shader + var gl = plot.gl + var screenBox = plot.screenBox + var titleCenter = plot.titleCenter + var titleAngle = plot.titleAngle + var titleColor = plot.titleColor + var pixelRatio = plot.pixelRatio + + if(!this.titleCount) { + return + } + + for(var i=0; i<2; ++i) { + SCREEN_OFFSET[i] = 2.0 * (titleCenter[i]*pixelRatio - screenBox[i]) / + (screenBox[2+i] - screenBox[i]) - 1 + } + + shader.bind() + shader.uniforms.dataAxis = DATA_AXIS + shader.uniforms.screenOffset = SCREEN_OFFSET + shader.uniforms.angle = titleAngle + shader.uniforms.color = titleColor + + gl.drawArrays(gl.TRIANGLES, this.titleOffset, this.titleCount) + } +})() + +proto.bind = (function() { + var DATA_SHIFT = [0,0] + var DATA_SCALE = [0,0] + var TEXT_SCALE = [0,0] + + return function() { + var plot = this.plot + var shader = this.shader + var bounds = plot._tickBounds + var dataBox = plot.dataBox + var screenBox = plot.screenBox + var viewBox = plot.viewBox + + shader.bind() + + //Set up coordinate scaling uniforms + for(var i=0; i<2; ++i) { + + var lo = bounds[i] + var hi = bounds[i+2] + var boundScale = hi - lo + var dataCenter = 0.5 * (dataBox[i+2] + dataBox[i]) + var dataWidth = (dataBox[i+2] - dataBox[i]) + + var viewLo = viewBox[i] + var viewHi = viewBox[i+2] + var viewScale = viewHi - viewLo + var screenLo = screenBox[i] + var screenHi = screenBox[i+2] + var screenScale = screenHi - screenLo + + DATA_SCALE[i] = 2.0 * boundScale / dataWidth * viewScale / screenScale + DATA_SHIFT[i] = 2.0 * (lo - dataCenter) / dataWidth * viewScale / screenScale + } + + TEXT_SCALE[1] = 2.0 * plot.pixelRatio / (screenBox[3] - screenBox[1]) + TEXT_SCALE[0] = TEXT_SCALE[1] * (screenBox[3] - screenBox[1]) / (screenBox[2] - screenBox[0]) + + shader.uniforms.dataScale = DATA_SCALE + shader.uniforms.dataShift = DATA_SHIFT + shader.uniforms.textScale = TEXT_SCALE + + //Set attributes + this.vbo.bind() + shader.attributes.textCoordinate.pointer() + } +})() + +proto.update = function(options) { + var vertices = [] + var axesTicks = options.ticks + var bounds = options.bounds + var i, j, k, data, scale, dimension + + for(dimension=0; dimension<2; ++dimension) { + var offsets = [Math.floor(vertices.length/3)], tickX = [-Infinity] + + //Copy vertices over to buffer + var ticks = axesTicks[dimension] + for(i=0; i= 0)) { + continue + } + + var zeroIntercept = screenBox[i] - + dataBox[i] * (screenBox[i+2] - screenBox[i]) / (dataBox[i+2] - dataBox[i]) + + if(i === 0) { + line.drawLine( + zeroIntercept, screenBox[1], zeroIntercept, screenBox[3], + zeroLineWidth[i], + zeroLineColor[i]) + } else { + line.drawLine( + screenBox[0], zeroIntercept, screenBox[2], zeroIntercept, + zeroLineWidth[i], + zeroLineColor[i]) + } + } + } + + //Draw traces + for(var i=0; i=0; --i) { + this.objects[i].dispose() + } + this.objects.length = 0 + for(var i=this.overlays.length-1; i>=0; --i) { + this.overlays[i].dispose() + } + this.overlays.length = 0 + + this.gl = null +} + +proto.addObject = function(object) { + if(this.objects.indexOf(object) < 0) { + this.objects.push(object) + this.setDirty() + } +} + +proto.removeObject = function(object) { + var objects = this.objects + for(var i=0; i Math.abs(dy)) { + view.rotate(t, 0, 0, -dx * flipX * Math.PI * camera.rotateSpeed / window.innerWidth) + } else { + if(!camera._ortho) { + var kzoom = -camera.zoomSpeed * flipY * dy / window.innerHeight * (t - view.lastT()) / 20.0 + view.pan(t, 0, 0, distance * (Math.exp(kzoom) - 1)) + } + } + }, true) + } + + camera.enableMouseListeners() + + return camera +} + +},{"3d-view":7,"has-passive-events":232,"mouse-change":247,"mouse-event-offset":248,"mouse-wheel":250,"right-now":278}],120:[function(_glvis_,module,exports){ +var glslify = _glvis_('glslify') +var createShader = _glvis_('gl-shader') + +var vertSrc = glslify(["precision mediump float;\n#define GLSLIFY 1\nattribute vec2 position;\nvarying vec2 uv;\nvoid main() {\n uv = position;\n gl_Position = vec4(position, 0, 1);\n}"]) +var fragSrc = glslify(["precision mediump float;\n#define GLSLIFY 1\n\nuniform sampler2D accumBuffer;\nvarying vec2 uv;\n\nvoid main() {\n vec4 accum = texture2D(accumBuffer, 0.5 * (uv + 1.0));\n gl_FragColor = min(vec4(1,1,1,1), accum);\n}"]) + +module.exports = function(gl) { + return createShader(gl, vertSrc, fragSrc, null, [ { name: 'position', type: 'vec2'}]) +} + +},{"gl-shader":132,"glslify":231}],121:[function(_glvis_,module,exports){ +'use strict' + +var createCamera = _glvis_('./camera.js') +var createAxes = _glvis_('gl-axes3d') +var axesRanges = _glvis_('gl-axes3d/properties') +var createSpikes = _glvis_('gl-spikes3d') +var createSelect = _glvis_('gl-select-static') +var createFBO = _glvis_('gl-fbo') +var drawTriangle = _glvis_('a-big-triangle') +var mouseChange = _glvis_('mouse-change') +var perspective = _glvis_('gl-mat4/perspective') +var ortho = _glvis_('gl-mat4/ortho') +var createShader = _glvis_('./lib/shader') +var isMobile = _glvis_('is-mobile')({ tablet: true, featureDetect: true }) + +module.exports = { + createScene: createScene, + createCamera: createCamera +} + +function MouseSelect() { + this.mouse = [-1,-1] + this.screen = null + this.distance = Infinity + this.index = null + this.dataCoordinate = null + this.dataPosition = null + this.object = null + this.data = null +} + +function getContext(canvas, options) { + var gl = null + try { + gl = canvas.getContext('webgl', options) + if(!gl) { + gl = canvas.getContext('experimental-webgl', options) + } + } catch(e) { + return null + } + return gl +} + +function roundUpPow10(x) { + var y = Math.round(Math.log(Math.abs(x)) / Math.log(10)) + if(y < 0) { + var base = Math.round(Math.pow(10, -y)) + return Math.ceil(x*base) / base + } else if(y > 0) { + var base = Math.round(Math.pow(10, y)) + return Math.ceil(x/base) * base + } + return Math.ceil(x) +} + +function defaultBool(x) { + if(typeof x === 'boolean') { + return x + } + return true +} + +function createScene(options) { + options = options || {} + options.camera = options.camera || {} + + var canvas = options.canvas + if(!canvas) { + canvas = document.createElement('canvas') + if(options.container) { + var container = options.container + container.appendChild(canvas) + } else { + document.body.appendChild(canvas) + } + } + + var gl = options.gl + if(!gl) { + if(options.glOptions) { + isMobile = !!options.glOptions.preserveDrawingBuffer + } + + gl = getContext(canvas, + options.glOptions || { + premultipliedAlpha: true, + antialias: true, + preserveDrawingBuffer: isMobile + }) + } + if(!gl) { + throw new Error('webgl not supported') + } + + //Initial bounds + var bounds = options.bounds || [[-10,-10,-10], [10,10,10]] + + //Create selection + var selection = new MouseSelect() + + //Accumulation buffer + var accumBuffer = createFBO(gl, + gl.drawingBufferWidth, gl.drawingBufferHeight, { + preferFloat: !isMobile + }) + + var accumShader = createShader(gl) + + var isOrtho = + (options.cameraObject && options.cameraObject._ortho === true) || + (options.camera.projection && options.camera.projection.type === 'orthographic') || + false + + //Create a camera + var cameraOptions = { + eye: options.camera.eye || [2,0,0], + center: options.camera.center || [0,0,0], + up: options.camera.up || [0,1,0], + zoomMin: options.camera.zoomMax || 0.1, + zoomMax: options.camera.zoomMin || 100, + mode: options.camera.mode || 'turntable', + _ortho: isOrtho + } + + //Create axes + var axesOptions = options.axes || {} + var axes = createAxes(gl, axesOptions) + axes.enable = !axesOptions.disable + + //Create spikes + var spikeOptions = options.spikes || {} + var spikes = createSpikes(gl, spikeOptions) + + //Object list is empty initially + var objects = [] + var pickBufferIds = [] + var pickBufferCount = [] + var pickBuffers = [] + + //Dirty flag, skip redraw if scene static + var dirty = true + var pickDirty = true + + var projection = new Array(16) + var model = new Array(16) + + var cameraParams = { + view: null, + projection: projection, + model: model, + _ortho: false + } + + var pickDirty = true + + var viewShape = [ gl.drawingBufferWidth, gl.drawingBufferHeight ] + + var camera = options.cameraObject || createCamera(canvas, cameraOptions) + + //Create scene object + var scene = { + gl: gl, + contextLost: false, + pixelRatio: options.pixelRatio || 1, + canvas: canvas, + selection: selection, + camera: camera, + axes: axes, + axesPixels: null, + spikes: spikes, + bounds: bounds, + objects: objects, + shape: viewShape, + aspect: options.aspectRatio || [1,1,1], + pickRadius: options.pickRadius || 10, + zNear: options.zNear || 0.01, + zFar: options.zFar || 1000, + fovy: options.fovy || Math.PI/4, + clearColor: options.clearColor || [0,0,0,0], + autoResize: defaultBool(options.autoResize), + autoBounds: defaultBool(options.autoBounds), + autoScale: !!options.autoScale, + autoCenter: defaultBool(options.autoCenter), + clipToBounds: defaultBool(options.clipToBounds), + snapToData: !!options.snapToData, + onselect: options.onselect || null, + onrender: options.onrender || null, + onclick: options.onclick || null, + cameraParams: cameraParams, + oncontextloss: null, + mouseListener: null, + _stopped: false, + + getAspectratio: function() { + return { + x: this.aspect[0], + y: this.aspect[1], + z: this.aspect[2] + } + }, + + setAspectratio: function(aspectratio) { + this.aspect[0] = aspectratio.x + this.aspect[1] = aspectratio.y + this.aspect[2] = aspectratio.z + pickDirty = true + }, + + setBounds: function(axisIndex, range) { + this.bounds[0][axisIndex] = range.min + this.bounds[1][axisIndex] = range.max + }, + + setClearColor: function(clearColor) { + this.clearColor = clearColor + }, + + clearRGBA: function() { + this.gl.clearColor( + this.clearColor[0], + this.clearColor[1], + this.clearColor[2], + this.clearColor[3] + ) + + this.gl.clear( + this.gl.COLOR_BUFFER_BIT | + this.gl.DEPTH_BUFFER_BIT + ) + } + } + + var pickShape = [ (gl.drawingBufferWidth/scene.pixelRatio)|0, (gl.drawingBufferHeight/scene.pixelRatio)|0 ] + + function resizeListener() { + if(scene._stopped) { + return + } + if(!scene.autoResize) { + return + } + var parent = canvas.parentNode + var width = 1 + var height = 1 + if(parent && parent !== document.body) { + width = parent.clientWidth + height = parent.clientHeight + } else { + width = window.innerWidth + height = window.innerHeight + } + var nextWidth = Math.ceil(width * scene.pixelRatio)|0 + var nextHeight = Math.ceil(height * scene.pixelRatio)|0 + if(nextWidth !== canvas.width || nextHeight !== canvas.height) { + canvas.width = nextWidth + canvas.height = nextHeight + var style = canvas.style + style.position = style.position || 'absolute' + style.left = '0px' + style.top = '0px' + style.width = width + 'px' + style.height = height + 'px' + dirty = true + } + } + if(scene.autoResize) { + resizeListener() + } + window.addEventListener('resize', resizeListener) + + function reallocPickIds() { + var numObjs = objects.length + var numPick = pickBuffers.length + for(var i=0; i 0 && pickBufferCount[numPick-1] === 0) { + pickBufferCount.pop() + pickBuffers.pop().dispose() + } + } + + scene.update = function(options) { + + if(scene._stopped) { + return + } + options = options || {} + dirty = true + pickDirty = true + } + + scene.add = function(obj) { + if(scene._stopped) { + return + } + obj.axes = axes + objects.push(obj) + pickBufferIds.push(-1) + dirty = true + pickDirty = true + reallocPickIds() + } + + scene.remove = function(obj) { + if(scene._stopped) { + return + } + var idx = objects.indexOf(obj) + if(idx < 0) { + return + } + objects.splice(idx, 1) + pickBufferIds.pop() + dirty = true + pickDirty = true + reallocPickIds() + } + + scene.dispose = function() { + if(scene._stopped) { + return + } + + scene._stopped = true + + window.removeEventListener('resize', resizeListener) + canvas.removeEventListener('webglcontextlost', checkContextLoss) + scene.mouseListener.enabled = false + + if(scene.contextLost) { + return + } + + //Destroy objects + axes.dispose() + spikes.dispose() + for(var i=0; i selection.distance) { + continue + } + for(var j=0; j 1.0) {\n discard;\n }\n baseColor = mix(borderColor, color, step(radius, centerFraction));\n gl_FragColor = vec4(baseColor.rgb * baseColor.a, baseColor.a);\n }\n}\n"]) +exports.pickVertex = glslify(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 position;\nattribute vec4 pickId;\n\nuniform mat3 matrix;\nuniform float pointSize;\nuniform vec4 pickOffset;\n\nvarying vec4 fragId;\n\nvoid main() {\n vec3 hgPosition = matrix * vec3(position, 1);\n gl_Position = vec4(hgPosition.xy, 0, hgPosition.z);\n gl_PointSize = pointSize;\n\n vec4 id = pickId + pickOffset;\n id.y += floor(id.x / 256.0);\n id.x -= floor(id.x / 256.0) * 256.0;\n\n id.z += floor(id.y / 256.0);\n id.y -= floor(id.y / 256.0) * 256.0;\n\n id.w += floor(id.z / 256.0);\n id.z -= floor(id.z / 256.0) * 256.0;\n\n fragId = id;\n}\n"]) +exports.pickFragment = glslify(["precision mediump float;\n#define GLSLIFY 1\n\nvarying vec4 fragId;\n\nvoid main() {\n float radius = length(2.0 * gl_PointCoord.xy - 1.0);\n if(radius > 1.0) {\n discard;\n }\n gl_FragColor = fragId / 255.0;\n}\n"]) + +},{"glslify":231}],123:[function(_glvis_,module,exports){ +'use strict' + +var createShader = _glvis_('gl-shader') +var createBuffer = _glvis_('gl-buffer') + +var pool = _glvis_('typedarray-pool') + +var SHADERS = _glvis_('./lib/shader') + +module.exports = createPointcloud2D + +function Pointcloud2D(plot, offsetBuffer, pickBuffer, shader, pickShader) { + this.plot = plot + this.offsetBuffer = offsetBuffer + this.pickBuffer = pickBuffer + this.shader = shader + this.pickShader = pickShader + this.sizeMin = 0.5 + this.sizeMinCap = 2 + this.sizeMax = 20 + this.areaRatio = 1.0 + this.pointCount = 0 + this.color = [1, 0, 0, 1] + this.borderColor = [0, 0, 0, 1] + this.blend = false + this.pickOffset = 0 + this.points = null +} + +var proto = Pointcloud2D.prototype + +proto.dispose = function() { + this.shader.dispose() + this.pickShader.dispose() + this.offsetBuffer.dispose() + this.pickBuffer.dispose() + this.plot.removeObject(this) +} + +proto.update = function(options) { + + var i + + options = options || {} + + function dflt(opt, value) { + if(opt in options) { + return options[opt] + } + return value + } + + this.sizeMin = dflt('sizeMin', 0.5) + // this.sizeMinCap = dflt('sizeMinCap', 2) + this.sizeMax = dflt('sizeMax', 20) + this.color = dflt('color', [1, 0, 0, 1]).slice() + this.areaRatio = dflt('areaRatio', 1) + this.borderColor = dflt('borderColor', [0, 0, 0, 1]).slice() + this.blend = dflt('blend', false) + + //Update point data + + // Attempt straight-through processing (STP) to avoid allocation and copy + // TODO eventually abstract out STP logic, maybe into `pool` or a layer above + var pointCount = options.positions.length >>> 1 + var dataStraightThrough = options.positions instanceof Float32Array + var idStraightThrough = options.idToIndex instanceof Int32Array && options.idToIndex.length >= pointCount // permit larger to help reuse + + var data = options.positions + var packed = dataStraightThrough ? data : pool.mallocFloat32(data.length) + var packedId = idStraightThrough ? options.idToIndex : pool.mallocInt32(pointCount) + + if(!dataStraightThrough) { + packed.set(data) + } + + if(!idStraightThrough) { + packed.set(data) + for(i = 0; i < pointCount; i++) { + packedId[i] = i + } + } + + this.points = data + + this.offsetBuffer.update(packed) + this.pickBuffer.update(packedId) + + if(!dataStraightThrough) { + pool.free(packed) + } + + if(!idStraightThrough) { + pool.free(packedId) + } + + this.pointCount = pointCount + this.pickOffset = 0 +} + +function count(points, dataBox) { + var visiblePointCountEstimate = 0 + var length = points.length >>> 1 + var i + for(i = 0; i < length; i++) { + var x = points[i * 2] + var y = points[i * 2 + 1] + if(x >= dataBox[0] && x <= dataBox[2] && y >= dataBox[1] && y <= dataBox[3]) + visiblePointCountEstimate++ + } + return visiblePointCountEstimate +} + +proto.unifiedDraw = (function() { + var MATRIX = [1, 0, 0, + 0, 1, 0, + 0, 0, 1] + var PICK_VEC4 = [0, 0, 0, 0] +return function(pickOffset) { + var pick = pickOffset !== void(0) + + var shader = pick ? this.pickShader : this.shader + var gl = this.plot.gl + var dataBox = this.plot.dataBox + + if(this.pointCount === 0) { + return pickOffset + } + + var dataX = dataBox[2] - dataBox[0] + var dataY = dataBox[3] - dataBox[1] + + var visiblePointCountEstimate = count(this.points, dataBox) + var basicPointSize = this.plot.pickPixelRatio * Math.max(Math.min(this.sizeMinCap, this.sizeMin), Math.min(this.sizeMax, this.sizeMax / Math.pow(visiblePointCountEstimate, 0.33333))) + + MATRIX[0] = 2.0 / dataX + MATRIX[4] = 2.0 / dataY + MATRIX[6] = -2.0 * dataBox[0] / dataX - 1.0 + MATRIX[7] = -2.0 * dataBox[1] / dataY - 1.0 + + this.offsetBuffer.bind() + + shader.bind() + shader.attributes.position.pointer() + shader.uniforms.matrix = MATRIX + shader.uniforms.color = this.color + shader.uniforms.borderColor = this.borderColor + shader.uniforms.pointCloud = basicPointSize < 5 + shader.uniforms.pointSize = basicPointSize + shader.uniforms.centerFraction = Math.min(1, Math.max(0, Math.sqrt(1 - this.areaRatio))) + + if(pick) { + + PICK_VEC4[0] = ( pickOffset & 0xff) + PICK_VEC4[1] = ((pickOffset >> 8) & 0xff) + PICK_VEC4[2] = ((pickOffset >> 16) & 0xff) + PICK_VEC4[3] = ((pickOffset >> 24) & 0xff) + + this.pickBuffer.bind() + shader.attributes.pickId.pointer(gl.UNSIGNED_BYTE) + shader.uniforms.pickOffset = PICK_VEC4 + this.pickOffset = pickOffset + } + + // Worth switching these off, but we can't make assumptions about other + // renderers, so let's restore it after each draw + var blend = gl.getParameter(gl.BLEND) + var dither = gl.getParameter(gl.DITHER) + + if(blend && !this.blend) + gl.disable(gl.BLEND) + if(dither) + gl.disable(gl.DITHER) + + gl.drawArrays(gl.POINTS, 0, this.pointCount) + + if(blend && !this.blend) + gl.enable(gl.BLEND) + if(dither) + gl.enable(gl.DITHER) + + return pickOffset + this.pointCount +} +})() + +proto.draw = proto.unifiedDraw +proto.drawPick = proto.unifiedDraw + +proto.pick = function(x, y, value) { + var pickOffset = this.pickOffset + var pointCount = this.pointCount + if(value < pickOffset || value >= pickOffset + pointCount) { + return null + } + var pointId = value - pickOffset + var points = this.points + return { + object: this, + pointId: pointId, + dataCoord: [points[2 * pointId], points[2 * pointId + 1] ] + } +} + +function createPointcloud2D(plot, options) { + var gl = plot.gl + var buffer = createBuffer(gl) + var pickBuffer = createBuffer(gl) + var shader = createShader(gl, SHADERS.pointVertex, SHADERS.pointFragment) + var pickShader = createShader(gl, SHADERS.pickVertex, SHADERS.pickFragment) + + var result = new Pointcloud2D(plot, buffer, pickBuffer, shader, pickShader) + result.update(options) + + //Register with plot + plot.addObject(result) + + return result +} + +},{"./lib/shader":122,"gl-buffer":78,"gl-shader":132,"typedarray-pool":308}],124:[function(_glvis_,module,exports){ +module.exports = slerp + +/** + * Performs a spherical linear interpolation between two quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {quat} out + */ +function slerp (out, a, b, t) { + // benchmarks: + // http://jsperf.com/quaternion-slerp-implementations + + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + bx = b[0], by = b[1], bz = b[2], bw = b[3] + + var omega, cosom, sinom, scale0, scale1 + + // calc cosine + cosom = ax * bx + ay * by + az * bz + aw * bw + // adjust signs (if necessary) + if (cosom < 0.0) { + cosom = -cosom + bx = -bx + by = -by + bz = -bz + bw = -bw + } + // calculate coefficients + if ((1.0 - cosom) > 0.000001) { + // standard case (slerp) + omega = Math.acos(cosom) + sinom = Math.sin(omega) + scale0 = Math.sin((1.0 - t) * omega) / sinom + scale1 = Math.sin(t * omega) / sinom + } else { + // "from" and "to" quaternions are very close + // ... so we can do a linear interpolation + scale0 = 1.0 - t + scale1 = t + } + // calculate final values + out[0] = scale0 * ax + scale1 * bx + out[1] = scale0 * ay + scale1 * by + out[2] = scale0 * az + scale1 * bz + out[3] = scale0 * aw + scale1 * bw + + return out +} + +},{}],125:[function(_glvis_,module,exports){ +'use strict'; + +module.exports = function(a){ + return (!a && a !== 0) ? '' : a.toString(); +} + +},{}],126:[function(_glvis_,module,exports){ +"use strict" + +var vectorizeText = _glvis_("vectorize-text") + +module.exports = getGlyph + +var GLYPH_CACHE = {} + +function getGlyph(symbol, font, pixelRatio) { + var fontCache = GLYPH_CACHE[font] + if(!fontCache) { + fontCache = GLYPH_CACHE[font] = {} + } + if(symbol in fontCache) { + return fontCache[symbol] + } + + var config = { + textAlign: "center", + textBaseline: "middle", + lineHeight: 1.0, + font: font, + lineSpacing: 1.25, + styletags: { + breaklines:true, + bolds: true, + italics: true, + subscripts:true, + superscripts:true + } + } + + //Get line and triangle meshes for glyph + config.triangles = true + var triSymbol = vectorizeText(symbol, config) + config.triangles = false + var lineSymbol = vectorizeText(symbol, config) + + var i, j + + if(pixelRatio && pixelRatio !== 1) { + for(i = 0; i < triSymbol.positions.length; ++i){ + for(j = 0; j < triSymbol.positions[i].length; ++j){ + triSymbol.positions[i][j] /= pixelRatio; + } + } + + for(i = 0; i < lineSymbol.positions.length; ++i){ + for(j = 0; j < lineSymbol.positions[i].length; ++j){ + lineSymbol.positions[i][j] /= pixelRatio; + } + } + } + + //Calculate bounding box + var bounds = [[Infinity,Infinity], [-Infinity,-Infinity]] + var n = lineSymbol.positions.length + for(i = 0; i < n; ++i) { + var p = lineSymbol.positions[i] + for(j=0; j<2; ++j) { + bounds[0][j] = Math.min(bounds[0][j], p[j]) + bounds[1][j] = Math.max(bounds[1][j], p[j]) + } + } + + //Save cached symbol + return fontCache[symbol] = [triSymbol, lineSymbol, bounds] +} +},{"vectorize-text":311}],127:[function(_glvis_,module,exports){ +var createShaderWrapper = _glvis_('gl-shader') +var glslify = _glvis_('glslify') + +var perspectiveVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 glyph;\nattribute vec4 id;\n\nuniform vec4 highlightId;\nuniform float highlightScale;\nuniform mat4 model, view, projection;\nuniform vec3 clipBounds[2];\n\nvarying vec4 interpColor;\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n gl_Position = vec4(0,0,0,0);\n } else {\n float scale = 1.0;\n if(distance(highlightId, id) < 0.0001) {\n scale = highlightScale;\n }\n\n vec4 worldPosition = model * vec4(position, 1);\n vec4 viewPosition = view * worldPosition;\n viewPosition = viewPosition / viewPosition.w;\n vec4 clipPosition = projection * (viewPosition + scale * vec4(glyph.x, -glyph.y, 0, 0));\n\n gl_Position = clipPosition;\n interpColor = color;\n pickId = id;\n dataCoordinate = position;\n }\n}"]) +var orthographicVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 glyph;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\nuniform vec2 screenSize;\nuniform vec3 clipBounds[2];\nuniform float highlightScale, pixelRatio;\nuniform vec4 highlightId;\n\nvarying vec4 interpColor;\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n gl_Position = vec4(0,0,0,0);\n } else {\n float scale = pixelRatio;\n if(distance(highlightId.bgr, id.bgr) < 0.001) {\n scale *= highlightScale;\n }\n\n vec4 worldPosition = model * vec4(position, 1.0);\n vec4 viewPosition = view * worldPosition;\n vec4 clipPosition = projection * viewPosition;\n clipPosition /= clipPosition.w;\n\n gl_Position = clipPosition + vec4(screenSize * scale * vec2(glyph.x, -glyph.y), 0.0, 0.0);\n interpColor = color;\n pickId = id;\n dataCoordinate = position;\n }\n}"]) +var projectionVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 glyph;\nattribute vec4 id;\n\nuniform float highlightScale;\nuniform vec4 highlightId;\nuniform vec3 axes[2];\nuniform mat4 model, view, projection;\nuniform vec2 screenSize;\nuniform vec3 clipBounds[2];\nuniform float scale, pixelRatio;\n\nvarying vec4 interpColor;\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n gl_Position = vec4(0,0,0,0);\n } else {\n float lscale = pixelRatio * scale;\n if(distance(highlightId, id) < 0.0001) {\n lscale *= highlightScale;\n }\n\n vec4 clipCenter = projection * view * model * vec4(position, 1);\n vec3 dataPosition = position + 0.5*lscale*(axes[0] * glyph.x + axes[1] * glyph.y) * clipCenter.w * screenSize.y;\n vec4 clipPosition = projection * view * model * vec4(dataPosition, 1);\n\n gl_Position = clipPosition;\n interpColor = color;\n pickId = id;\n dataCoordinate = dataPosition;\n }\n}\n"]) +var drawFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 fragClipBounds[2];\nuniform float opacity;\n\nvarying vec4 interpColor;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n if (\n outOfRange(fragClipBounds[0], fragClipBounds[1], dataCoordinate) ||\n interpColor.a * opacity == 0.\n ) discard;\n gl_FragColor = interpColor * opacity;\n}\n"]) +var pickFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 fragClipBounds[2];\nuniform float pickGroup;\n\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n if (outOfRange(fragClipBounds[0], fragClipBounds[1], dataCoordinate)) discard;\n\n gl_FragColor = vec4(pickGroup, pickId.bgr);\n}"]) + +var ATTRIBUTES = [ + {name: 'position', type: 'vec3'}, + {name: 'color', type: 'vec4'}, + {name: 'glyph', type: 'vec2'}, + {name: 'id', type: 'vec4'} +] + +var perspective = { + vertex: perspectiveVertSrc, + fragment: drawFragSrc, + attributes: ATTRIBUTES + }, + ortho = { + vertex: orthographicVertSrc, + fragment: drawFragSrc, + attributes: ATTRIBUTES + }, + project = { + vertex: projectionVertSrc, + fragment: drawFragSrc, + attributes: ATTRIBUTES + }, + pickPerspective = { + vertex: perspectiveVertSrc, + fragment: pickFragSrc, + attributes: ATTRIBUTES + }, + pickOrtho = { + vertex: orthographicVertSrc, + fragment: pickFragSrc, + attributes: ATTRIBUTES + }, + pickProject = { + vertex: projectionVertSrc, + fragment: pickFragSrc, + attributes: ATTRIBUTES + } + +function createShader(gl, src) { + var shader = createShaderWrapper(gl, src) + var attr = shader.attributes + attr.position.location = 0 + attr.color.location = 1 + attr.glyph.location = 2 + attr.id.location = 3 + return shader +} + +exports.createPerspective = function(gl) { + return createShader(gl, perspective) +} +exports.createOrtho = function(gl) { + return createShader(gl, ortho) +} +exports.createProject = function(gl) { + return createShader(gl, project) +} +exports.createPickPerspective = function(gl) { + return createShader(gl, pickPerspective) +} +exports.createPickOrtho = function(gl) { + return createShader(gl, pickOrtho) +} +exports.createPickProject = function(gl) { + return createShader(gl, pickProject) +} + +},{"gl-shader":132,"glslify":231}],128:[function(_glvis_,module,exports){ +'use strict' + +var isAllBlank = _glvis_('is-string-blank') +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var pool = _glvis_('typedarray-pool') +var mat4mult = _glvis_('gl-mat4/multiply') +var shaders = _glvis_('./lib/shaders') +var getGlyph = _glvis_('./lib/glyphs') +var getSimpleString = _glvis_('./lib/get-simple-string') + +var IDENTITY = [1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 0,0,0,1] + +module.exports = createPointCloud + +function transformMat4(x, m) { + var x0 = x[0] + var x1 = x[1] + var x2 = x[2] + var x3 = x[3] + x[0] = m[0] * x0 + m[4] * x1 + m[8] * x2 + m[12] * x3 + x[1] = m[1] * x0 + m[5] * x1 + m[9] * x2 + m[13] * x3 + x[2] = m[2] * x0 + m[6] * x1 + m[10] * x2 + m[14] * x3 + x[3] = m[3] * x0 + m[7] * x1 + m[11] * x2 + m[15] * x3 + return x +} + +function project(p, v, m, x) { + transformMat4(x, x, m) + transformMat4(x, x, v) + return transformMat4(x, x, p) +} + +function ScatterPlotPickResult(index, position) { + this.index = index + this.dataCoordinate = this.position = position +} + +function fixOpacity(a) { + if(a === true) return 1 + if(a > 1) return 1 + return a +} + +function PointCloud( + gl, + shader, + orthoShader, + projectShader, + pointBuffer, + colorBuffer, + glyphBuffer, + idBuffer, + vao, + pickPerspectiveShader, + pickOrthoShader, + pickProjectShader) { + + this.gl = gl + + this.pixelRatio = 1 + + this.shader = shader + this.orthoShader = orthoShader + this.projectShader = projectShader + + this.pointBuffer = pointBuffer + this.colorBuffer = colorBuffer + this.glyphBuffer = glyphBuffer + this.idBuffer = idBuffer + this.vao = vao + this.vertexCount = 0 + this.lineVertexCount = 0 + + this.opacity = 1 + this.hasAlpha = false + + this.lineWidth = 0 + this.projectScale = [2.0/3.0, 2.0/3.0, 2.0/3.0] + this.projectOpacity = [1, 1, 1] + this.projectHasAlpha = false + + this.pickId = 0 + this.pickPerspectiveShader = pickPerspectiveShader + this.pickOrthoShader = pickOrthoShader + this.pickProjectShader = pickProjectShader + this.points = [] + + this._selectResult = new ScatterPlotPickResult(0, [0,0,0]) + + this.useOrtho = true + this.bounds = [[ Infinity,Infinity,Infinity], + [-Infinity,-Infinity,-Infinity]] + + //Axes projections + this.axesProject = [ true, true, true ] + this.axesBounds = [[-Infinity,-Infinity,-Infinity], + [ Infinity, Infinity, Infinity]] + + this.highlightId = [1,1,1,1] + this.highlightScale = 2 + + this.clipBounds = [[-Infinity,-Infinity,-Infinity], + [ Infinity, Infinity, Infinity]] + + this.dirty = true +} + +var proto = PointCloud.prototype + +proto.pickSlots = 1 + +proto.setPickBase = function(pickBase) { + this.pickId = pickBase +} + +proto.isTransparent = function() { + if(this.hasAlpha) { + return true + } + for(var i=0; i<3; ++i) { + if(this.axesProject[i] && this.projectHasAlpha) { + return true + } + } + return false +} + +proto.isOpaque = function() { + if(!this.hasAlpha) { + return true + } + for(var i=0; i<3; ++i) { + if(this.axesProject[i] && !this.projectHasAlpha) { + return true + } + } + return false +} + +var VIEW_SHAPE = [0,0] +var U_VEC = [0,0,0] +var V_VEC = [0,0,0] +var MU_VEC = [0,0,0,1] +var MV_VEC = [0,0,0,1] +var SCRATCH_MATRIX = IDENTITY.slice() +var SCRATCH_VEC = [0,0,0] +var CLIP_BOUNDS = [[0,0,0], [0,0,0]] + +function zeroVec(a) { + a[0] = a[1] = a[2] = 0 + return a +} + +function augment(hg, af) { + hg[0] = af[0] + hg[1] = af[1] + hg[2] = af[2] + hg[3] = 1 + return hg +} + +function setComponent(out, v, i, x) { + out[0] = v[0] + out[1] = v[1] + out[2] = v[2] + out[i] = x + return out +} + +function getClipBounds(bounds) { + var result = CLIP_BOUNDS + for(var i=0; i<2; ++i) { + for(var j=0; j<3; ++j) { + result[i][j] = Math.max(Math.min(bounds[i][j], 1e8), -1e8) + } + } + return result +} + +function drawProject(shader, points, camera, pixelRatio) { + var axesProject = points.axesProject + + var gl = points.gl + var uniforms = shader.uniforms + var model = camera.model || IDENTITY + var view = camera.view || IDENTITY + var projection = camera.projection || IDENTITY + var bounds = points.axesBounds + var clipBounds = getClipBounds(points.clipBounds) + + var cubeAxis + if(points.axes && points.axes.lastCubeProps) { + cubeAxis = points.axes.lastCubeProps.axis + } else { + cubeAxis = [1,1,1] + } + + VIEW_SHAPE[0] = 2.0/gl.drawingBufferWidth + VIEW_SHAPE[1] = 2.0/gl.drawingBufferHeight + + shader.bind() + uniforms.view = view + uniforms.projection = projection + uniforms.screenSize = VIEW_SHAPE + uniforms.highlightId = points.highlightId + uniforms.highlightScale = points.highlightScale + uniforms.clipBounds = clipBounds + uniforms.pickGroup = points.pickId / 255.0 + uniforms.pixelRatio = pixelRatio + + for(var i=0; i<3; ++i) { + if(!axesProject[i]) { + continue + } + + uniforms.scale = points.projectScale[i] + uniforms.opacity = points.projectOpacity[i] + + //Project model matrix + var pmodel = SCRATCH_MATRIX + for(var j=0; j<16; ++j) { + pmodel[j] = 0 + } + for(var j=0; j<4; ++j) { + pmodel[5*j] = 1 + } + pmodel[5*i] = 0 + if(cubeAxis[i] < 0) { + pmodel[12+i] = bounds[0][i] + } else { + pmodel[12+i] = bounds[1][i] + } + mat4mult(pmodel, model, pmodel) + uniforms.model = pmodel + + //Compute initial axes + var u = (i+1)%3 + var v = (i+2)%3 + var du = zeroVec(U_VEC) + var dv = zeroVec(V_VEC) + du[u] = 1 + dv[v] = 1 + + //Align orientation relative to viewer + var mdu = project(projection, view, model, augment(MU_VEC, du)) + var mdv = project(projection, view, model, augment(MV_VEC, dv)) + if(Math.abs(mdu[1]) > Math.abs(mdv[1])) { + var tmp = mdu + mdu = mdv + mdv = tmp + tmp = du + du = dv + dv = tmp + var t = u + u = v + v = t + } + if(mdu[0] < 0) { + du[u] = -1 + } + if(mdv[1] > 0) { + dv[v] = -1 + } + var su = 0.0 + var sv = 0.0 + for(var j=0; j<4; ++j) { + su += Math.pow(model[4*u+j], 2) + sv += Math.pow(model[4*v+j], 2) + } + du[u] /= Math.sqrt(su) + dv[v] /= Math.sqrt(sv) + uniforms.axes[0] = du + uniforms.axes[1] = dv + + //Update fragment clip bounds + uniforms.fragClipBounds[0] = setComponent(SCRATCH_VEC, clipBounds[0], i, -1e8) + uniforms.fragClipBounds[1] = setComponent(SCRATCH_VEC, clipBounds[1], i, 1e8) + + points.vao.bind() + + //Draw interior + points.vao.draw(gl.TRIANGLES, points.vertexCount) + + //Draw edges + if(points.lineWidth > 0) { + gl.lineWidth(points.lineWidth * pixelRatio) + points.vao.draw(gl.LINES, points.lineVertexCount, points.vertexCount) + } + + points.vao.unbind() + } +} + + +var NEG_INFINITY3 = [-1e8, -1e8, -1e8] +var POS_INFINITY3 = [1e8, 1e8, 1e8] +var CLIP_GROUP = [NEG_INFINITY3, POS_INFINITY3] + +function drawFull(shader, pshader, points, camera, pixelRatio, transparent, forceDraw) { + var gl = points.gl + + if(transparent === points.projectHasAlpha || forceDraw) { + drawProject(pshader, points, camera, pixelRatio) + } + + if(transparent === points.hasAlpha || forceDraw) { + + shader.bind() + var uniforms = shader.uniforms + + uniforms.model = camera.model || IDENTITY + uniforms.view = camera.view || IDENTITY + uniforms.projection = camera.projection || IDENTITY + + VIEW_SHAPE[0] = 2.0/gl.drawingBufferWidth + VIEW_SHAPE[1] = 2.0/gl.drawingBufferHeight + uniforms.screenSize = VIEW_SHAPE + + uniforms.highlightId = points.highlightId + uniforms.highlightScale = points.highlightScale + + uniforms.fragClipBounds = CLIP_GROUP + uniforms.clipBounds = points.axes.bounds + + uniforms.opacity = points.opacity + uniforms.pickGroup = points.pickId / 255.0 + + uniforms.pixelRatio = pixelRatio + + points.vao.bind() + + //Draw interior + points.vao.draw(gl.TRIANGLES, points.vertexCount) + + //Draw edges + if(points.lineWidth > 0) { + gl.lineWidth(points.lineWidth * pixelRatio) + points.vao.draw(gl.LINES, points.lineVertexCount, points.vertexCount) + } + + points.vao.unbind() + } + + +} + +proto.draw = function(camera) { + var shader = this.useOrtho ? this.orthoShader : this.shader + drawFull(shader, this.projectShader, this, camera, this.pixelRatio, false, false) +} + +proto.drawTransparent = function(camera) { + var shader = this.useOrtho ? this.orthoShader : this.shader + drawFull(shader, this.projectShader, this, camera, this.pixelRatio, true, false) +} + +proto.drawPick = function(camera) { + var shader = this.useOrtho ? this.pickOrthoShader : this.pickPerspectiveShader + drawFull(shader, this.pickProjectShader, this, camera, 1, true, true) +} + +proto.pick = function(selected) { + if(!selected) { + return null + } + if(selected.id !== this.pickId) { + return null + } + var x = selected.value[2] + (selected.value[1]<<8) + (selected.value[0]<<16) + if(x >= this.pointCount || x < 0) { + return null + } + + //Unpack result + var coord = this.points[x] + var result = this._selectResult + result.index = x + for(var i=0; i<3; ++i) { + result.position[i] = result.dataCoordinate[i] = coord[i] + } + return result +} + +proto.highlight = function(selection) { + if(!selection) { + this.highlightId = [1,1,1,1] + } else { + var pointId = selection.index + var a0 = pointId &0xff + var a1 = (pointId>>8) &0xff + var a2 = (pointId>>16)&0xff + this.highlightId = [a0/255.0, a1/255.0, a2/255.0, 0] + } +} + +function get_glyphData(glyphs, index, font, pixelRatio) { + var str + + // use the data if presented in an array + if(Array.isArray(glyphs)) { + if(index < glyphs.length) { + str = glyphs[index] + } else { + str = undefined + } + } else { + str = glyphs + } + + str = getSimpleString(str) // this would handle undefined cases + + var visible = true + if(isAllBlank(str)) { + str = '▼' // Note: this special character may have minimum number of surfaces + visible = false + } + + var glyph = getGlyph(str, font, pixelRatio) + + return { mesh:glyph[0], + lines:glyph[1], + bounds:glyph[2], + visible:visible }; +} + + + +proto.update = function(options) { + + options = options || {} + + if('perspective' in options) { + this.useOrtho = !options.perspective + } + if('orthographic' in options) { + this.useOrtho = !!options.orthographic + } + if('lineWidth' in options) { + this.lineWidth = options.lineWidth + } + if('project' in options) { + if(Array.isArray(options.project)) { + this.axesProject = options.project + } else { + var v = !!options.project + this.axesProject = [v,v,v] + } + } + if('projectScale' in options) { + if(Array.isArray(options.projectScale)) { + this.projectScale = options.projectScale.slice() + } else { + var s = +options.projectScale + this.projectScale = [s,s,s] + } + } + + this.projectHasAlpha = false // default to no transparent draw + if('projectOpacity' in options) { + if(Array.isArray(options.projectOpacity)) { + this.projectOpacity = options.projectOpacity.slice() + } else { + var s = +options.projectOpacity + this.projectOpacity = [s,s,s] + } + for(var i=0; i<3; ++i) { + this.projectOpacity[i] = fixOpacity(this.projectOpacity[i]); + if(this.projectOpacity[i] < 1) { + this.projectHasAlpha = true; + } + } + } + + this.hasAlpha = false // default to no transparent draw + if('opacity' in options) { + this.opacity = fixOpacity(options.opacity) + if(this.opacity < 1) { + this.hasAlpha = true; + } + } + + //Set dirty flag + this.dirty = true + + //Create new buffers + var points = options.position + + //Text font + var font = options.font || 'normal' + var alignment = options.alignment || [0,0] + + var alignmentX; + var alignmentY; + if (alignment.length === 2) { + alignmentX = alignment[0] + alignmentY = alignment[1] + } else { + alignmentX = [] + alignmentY = [] + for (var i = 0; i < alignment.length; ++i) { + alignmentX[i] = alignment[i][0] + alignmentY[i] = alignment[i][1] + } + } + + //Bounds + var lowerBound = [ Infinity, Infinity, Infinity] + var upperBound = [-Infinity,-Infinity,-Infinity] + + //Unpack options + var glyphs = options.glyph + var colors = options.color + var sizes = options.size + var angles = options.angle + var lineColors = options.lineColor + + //Picking geometry + var pickCounter = -1 + + //First do pass to compute buffer sizes + var triVertexCount = 0 + var lineVertexCount = 0 + + var numPoints = 0; + + if(points.length) { + + //Count number of points and buffer size + numPoints = points.length + + count_loop: + for(var i=0; i 0) { + var triOffset = 0 + var lineOffset = triVertexCount + var color = [0,0,0,1] + var lineColor = [0,0,0,1] + + var isColorArray = Array.isArray(colors) && Array.isArray(colors[0]) + var isLineColorArray = Array.isArray(lineColors) && Array.isArray(lineColors[0]) + + fill_loop: + for(var i=0; i 0) ? (1 - glyphBounds[0][0]) : + (textOffsetX < 0) ? (1 + glyphBounds[1][0]) : 1; + + textOffsetY *= (textOffsetY > 0) ? (1 - glyphBounds[0][1]) : + (textOffsetY < 0) ? (1 + glyphBounds[1][1]) : 1; + + var textOffset = [textOffsetX, textOffsetY] + + //Write out inner marker + var cells = glyphMesh.cells || [] + var verts = glyphMesh.positions || [] + + for(var j=0; j 0) { + + //Draw border + var w = lineWidth * pixelRatio + boxes.drawBox(loX-w, loY-w, hiX+w, loY+w, borderColor) + boxes.drawBox(loX-w, hiY-w, hiX+w, hiY+w, borderColor) + boxes.drawBox(loX-w, loY-w, loX+w, hiY+w, borderColor) + boxes.drawBox(hiX-w, loY-w, hiX+w, hiY+w, borderColor) + } +} + +proto.update = function(options) { + options = options || {} + + this.innerFill = !!options.innerFill + this.outerFill = !!options.outerFill + this.innerColor = (options.innerColor || [0,0,0,0.5]).slice() + this.outerColor = (options.outerColor || [0,0,0,0.5]).slice() + this.borderColor = (options.borderColor || [0,0,0,1]).slice() + this.borderWidth = options.borderWidth || 0 + this.selectBox = (options.selectBox || this.selectBox).slice() +} + +proto.dispose = function() { + this.boxBuffer.dispose() + this.boxShader.dispose() + this.plot.removeOverlay(this) +} + +function createSelectBox(plot, options) { + var gl = plot.gl + var buffer = createBuffer(gl, [ + 0, 0, + 0, 1, + 1, 0, + 1, 1 ]) + var shader = createShader(gl, SHADERS.boxVertex, SHADERS.boxFragment) + var selectBox = new SelectBox(plot, buffer, shader) + selectBox.update(options) + plot.addOverlay(selectBox) + return selectBox +} + +},{"./lib/shaders":129,"gl-buffer":78,"gl-shader":132}],131:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createSelectBuffer + +var createFBO = _glvis_('gl-fbo') +var pool = _glvis_('typedarray-pool') +var ndarray = _glvis_('ndarray') +var nextPow2 = _glvis_('bit-twiddle').nextPow2 + +var selectRange = function(arr, x, y) { + var closestD2 = 1e8 + var closestX = -1 + var closestY = -1 + + var ni = arr.shape[0] + var nj = arr.shape[1] + for(var i = 0; i < ni; i++) { + for(var j = 0; j < nj; j++) { + var r = arr.get(i, j, 0) + var g = arr.get(i, j, 1) + var b = arr.get(i, j, 2) + var a = arr.get(i, j, 3) + + if(r < 255 || g < 255 || b < 255 || a < 255) { + var dx = x - i + var dy = y - j + var d2 = dx*dx + dy*dy + if(d2 < closestD2) { + closestD2 = d2 + closestX = i + closestY = j + } + } + } + } + + return [closestX, closestY, closestD2] +} + +function SelectResult(x, y, id, value, distance) { + this.coord = [x, y] + this.id = id + this.value = value + this.distance = distance +} + +function SelectBuffer(gl, fbo, buffer) { + this.gl = gl + this.fbo = fbo + this.buffer = buffer + this._readTimeout = null + var self = this + + this._readCallback = function() { + if(!self.gl) { + return + } + fbo.bind() + gl.readPixels(0,0,fbo.shape[0],fbo.shape[1],gl.RGBA,gl.UNSIGNED_BYTE,self.buffer) + self._readTimeout = null + } +} + +var proto = SelectBuffer.prototype + +Object.defineProperty(proto, 'shape', { + get: function() { + if(!this.gl) { + return [0,0] + } + return this.fbo.shape.slice() + }, + set: function(v) { + if(!this.gl) { + return + } + this.fbo.shape = v + var c = this.fbo.shape[0] + var r = this.fbo.shape[1] + if(r*c*4 > this.buffer.length) { + pool.free(this.buffer) + var buffer = this.buffer = pool.mallocUint8(nextPow2(r*c*4)) + for(var i=0; i oldAttribCount) { + for(i = oldAttribCount; i < newAttribCount; i++) { + this.gl.enableVertexAttribArray(i) + } + } else if(oldAttribCount > newAttribCount) { + for(i = newAttribCount; i < oldAttribCount; i++) { + this.gl.disableVertexAttribArray(i) + } + } + + this.gl.lastAttribCount = newAttribCount + + this.gl.useProgram(this.program) +} + +proto.dispose = function() { + + // disabling vertex attributes so new shader starts with zero + // and it's also useful if all shaders are disposed but the + // gl context is reused for subsequent replotting + var oldAttribCount = this.gl.lastAttribCount + for (var i = 0; i < oldAttribCount; i++) { + this.gl.disableVertexAttribArray(i) + } + this.gl.lastAttribCount = 0 + + if(this._fref) { + this._fref.dispose() + } + if(this._vref) { + this._vref.dispose() + } + this.attributes = + this.types = + this.vertShader = + this.fragShader = + this.program = + this._relink = + this._fref = + this._vref = null +} + +function compareAttributes(a, b) { + if(a.name < b.name) { + return -1 + } + return 1 +} + +//Update export hook for glslify-live +proto.update = function( + vertSource + , fragSource + , uniforms + , attributes) { + + //If only one object passed, assume glslify style output + if(!fragSource || arguments.length === 1) { + var obj = vertSource + vertSource = obj.vertex + fragSource = obj.fragment + uniforms = obj.uniforms + attributes = obj.attributes + } + + var wrapper = this + var gl = wrapper.gl + + //Compile vertex and fragment shaders + var pvref = wrapper._vref + wrapper._vref = shaderCache.shader(gl, gl.VERTEX_SHADER, vertSource) + if(pvref) { + pvref.dispose() + } + wrapper.vertShader = wrapper._vref.shader + var pfref = this._fref + wrapper._fref = shaderCache.shader(gl, gl.FRAGMENT_SHADER, fragSource) + if(pfref) { + pfref.dispose() + } + wrapper.fragShader = wrapper._fref.shader + + //If uniforms/attributes is not specified, use RT reflection + if(!uniforms || !attributes) { + + //Create initial test program + var testProgram = gl.createProgram() + gl.attachShader(testProgram, wrapper.fragShader) + gl.attachShader(testProgram, wrapper.vertShader) + gl.linkProgram(testProgram) + if(!gl.getProgramParameter(testProgram, gl.LINK_STATUS)) { + var errLog = gl.getProgramInfoLog(testProgram) + throw new GLError(errLog, 'Error linking program:' + errLog) + } + + //Load data from runtime + uniforms = uniforms || runtime.uniforms(gl, testProgram) + attributes = attributes || runtime.attributes(gl, testProgram) + + //Release test program + gl.deleteProgram(testProgram) + } + + //Sort attributes lexicographically + // overrides undefined WebGL behavior for attribute locations + attributes = attributes.slice() + attributes.sort(compareAttributes) + + //Convert attribute types, read out locations + var attributeUnpacked = [] + var attributeNames = [] + var attributeLocations = [] + var i + for(i=0; i= 0) { + var size = attr.type.charAt(attr.type.length-1)|0 + var locVector = new Array(size) + for(var j=0; j= 0) { + curLocation += 1 + } + attributeLocations[i] = curLocation + } + } + + //Rebuild program and recompute all uniform locations + var uniformLocations = new Array(uniforms.length) + function relink() { + wrapper.program = shaderCache.program( + gl + , wrapper._vref + , wrapper._fref + , attributeNames + , attributeLocations) + + for(var i=0; i= 0) { + var d = type.charCodeAt(type.length-1) - 48 + if(d < 2 || d > 4) { + throw new GLError('', 'Invalid data type for attribute ' + name + ': ' + type) + } + addVectorAttribute( + gl + , wrapper + , locs[0] + , locations + , d + , obj + , name) + } else if(type.indexOf('mat') >= 0) { + var d = type.charCodeAt(type.length-1) - 48 + if(d < 2 || d > 4) { + throw new GLError('', 'Invalid data type for attribute ' + name + ': ' + type) + } + addMatrixAttribute( + gl + , wrapper + , locs + , locations + , d + , obj + , name) + } else { + throw new GLError('', 'Unknown data type for attribute ' + name + ': ' + type) + } + break + } + } + return obj +} + +},{"./GLError":133}],135:[function(_glvis_,module,exports){ +'use strict' + +var coallesceUniforms = _glvis_('./reflect') +var GLError = _glvis_("./GLError") + +module.exports = createUniformWrapper + +//Binds a function and returns a value +function identity(x) { + return function() { + return x + } +} + +function makeVector(length, fill) { + var result = new Array(length) + for(var i=0; i 4) { + throw new GLError('', 'Invalid data type') + } + switch(t.charAt(0)) { + case 'b': + case 'i': + gl['uniform' + d + 'iv'](locations[idx], objPath) + break + case 'v': + gl['uniform' + d + 'fv'](locations[idx], objPath) + break + default: + throw new GLError('', 'Unrecognized data type for vector ' + name + ': ' + t) + } + } else if(t.indexOf('mat') === 0 && t.length === 4) { + d = t.charCodeAt(t.length-1) - 48 + if(d < 2 || d > 4) { + throw new GLError('', 'Invalid uniform dimension type for matrix ' + name + ': ' + t) + } + gl['uniformMatrix' + d + 'fv'](locations[idx], false, objPath) + break + } else { + throw new GLError('', 'Unknown uniform data type for ' + name + ': ' + t) + } + } + } + } + } + } + + function enumerateIndices(prefix, type) { + if(typeof type !== 'object') { + return [ [prefix, type] ] + } + var indices = [] + for(var id in type) { + var prop = type[id] + var tprefix = prefix + if(parseInt(id) + '' === id) { + tprefix += '[' + id + ']' + } else { + tprefix += '.' + id + } + if(typeof prop === 'object') { + indices.push.apply(indices, enumerateIndices(tprefix, prop)) + } else { + indices.push([tprefix, prop]) + } + } + return indices + } + + + function defaultValue(type) { + switch(type) { + case 'bool': + return false + case 'int': + case 'sampler2D': + case 'samplerCube': + return 0 + case 'float': + return 0.0 + default: + var vidx = type.indexOf('vec') + if(0 <= vidx && vidx <= 1 && type.length === 4 + vidx) { + var d = type.charCodeAt(type.length-1) - 48 + if(d < 2 || d > 4) { + throw new GLError('', 'Invalid data type') + } + if(type.charAt(0) === 'b') { + return makeVector(d, false) + } + return makeVector(d, 0) + } else if(type.indexOf('mat') === 0 && type.length === 4) { + var d = type.charCodeAt(type.length-1) - 48 + if(d < 2 || d > 4) { + throw new GLError('', 'Invalid uniform dimension type for matrix ' + name + ': ' + type) + } + return makeVector(d*d, 0) + } else { + throw new GLError('', 'Unknown uniform data type for ' + name + ': ' + type) + } + } + } + + function storeProperty(obj, prop, type) { + if(typeof type === 'object') { + var child = processObject(type) + Object.defineProperty(obj, prop, { + get: identity(child), + set: makeSetter(type), + enumerable: true, + configurable: false + }) + } else { + if(locations[type]) { + Object.defineProperty(obj, prop, { + get: makeGetter(type), + set: makeSetter(type), + enumerable: true, + configurable: false + }) + } else { + obj[prop] = defaultValue(uniforms[type].type) + } + } + } + + function processObject(obj) { + var result + if(Array.isArray(obj)) { + result = new Array(obj.length) + for(var i=0; i 1) { + if(!(x[0] in o)) { + o[x[0]] = [] + } + o = o[x[0]] + for(var k=1; k 1) { + for(var j=0; j 0 U ||b|| > 0.\n // Assign z = 0, x = -b, y = a:\n // a*-b + b*a + c*0 = -ba + ba + 0 = 0\n if (v.x*v.x > v.z*v.z || v.y*v.y > v.z*v.z) {\n return normalize(vec3(-v.y, v.x, 0.0));\n } else {\n return normalize(vec3(0.0, v.z, -v.y));\n }\n}\n\n// Calculate the tube vertex and normal at the given index.\n//\n// The returned vertex is for a tube ring with its center at origin, radius of length(d), pointing in the direction of d.\n//\n// Each tube segment is made up of a ring of vertices.\n// These vertices are used to make up the triangles of the tube by connecting them together in the vertex array.\n// The indexes of tube segments run from 0 to 8.\n//\nvec3 getTubePosition(vec3 d, float index, out vec3 normal) {\n float segmentCount = 8.0;\n\n float angle = 2.0 * 3.14159 * (index / segmentCount);\n\n vec3 u = getOrthogonalVector(d);\n vec3 v = normalize(cross(u, d));\n\n vec3 x = u * cos(angle) * length(d);\n vec3 y = v * sin(angle) * length(d);\n vec3 v3 = x + y;\n\n normal = normalize(v3);\n\n return v3;\n}\n\nattribute vec4 vector;\nattribute vec4 color, position;\nattribute vec2 uv;\n\nuniform float vectorScale, tubeScale;\nuniform mat4 model, view, projection, inverseModel;\nuniform vec3 eyePosition, lightPosition;\n\nvarying vec3 f_normal, f_lightDirection, f_eyeDirection, f_data, f_position;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n // Scale the vector magnitude to stay constant with\n // model & view changes.\n vec3 normal;\n vec3 XYZ = getTubePosition(mat3(model) * (tubeScale * vector.w * normalize(vector.xyz)), position.w, normal);\n vec4 tubePosition = model * vec4(position.xyz, 1.0) + vec4(XYZ, 0.0);\n\n //Lighting geometry parameters\n vec4 cameraCoordinate = view * tubePosition;\n cameraCoordinate.xyz /= cameraCoordinate.w;\n f_lightDirection = lightPosition - cameraCoordinate.xyz;\n f_eyeDirection = eyePosition - cameraCoordinate.xyz;\n f_normal = normalize((vec4(normal, 0.0) * inverseModel).xyz);\n\n // vec4 m_position = model * vec4(tubePosition, 1.0);\n vec4 t_position = view * tubePosition;\n gl_Position = projection * t_position;\n\n f_color = color;\n f_data = tubePosition.xyz;\n f_position = position.xyz;\n f_uv = uv;\n}\n"]) +var triFragSrc = glslify(["#extension GL_OES_standard_derivatives : enable\n\nprecision highp float;\n#define GLSLIFY 1\n\nfloat beckmannDistribution(float x, float roughness) {\n float NdotH = max(x, 0.0001);\n float cos2Alpha = NdotH * NdotH;\n float tan2Alpha = (cos2Alpha - 1.0) / cos2Alpha;\n float roughness2 = roughness * roughness;\n float denom = 3.141592653589793 * roughness2 * cos2Alpha * cos2Alpha;\n return exp(tan2Alpha / roughness2) / denom;\n}\n\nfloat cookTorranceSpecular(\n vec3 lightDirection,\n vec3 viewDirection,\n vec3 surfaceNormal,\n float roughness,\n float fresnel) {\n\n float VdotN = max(dot(viewDirection, surfaceNormal), 0.0);\n float LdotN = max(dot(lightDirection, surfaceNormal), 0.0);\n\n //Half angle vector\n vec3 H = normalize(lightDirection + viewDirection);\n\n //Geometric term\n float NdotH = max(dot(surfaceNormal, H), 0.0);\n float VdotH = max(dot(viewDirection, H), 0.000001);\n float LdotH = max(dot(lightDirection, H), 0.000001);\n float G1 = (2.0 * NdotH * VdotN) / VdotH;\n float G2 = (2.0 * NdotH * LdotN) / LdotH;\n float G = min(1.0, min(G1, G2));\n \n //Distribution term\n float D = beckmannDistribution(NdotH, roughness);\n\n //Fresnel term\n float F = pow(1.0 - VdotN, fresnel);\n\n //Multiply terms and done\n return G * F * D / max(3.14159265 * VdotN, 0.000001);\n}\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float roughness, fresnel, kambient, kdiffuse, kspecular, opacity;\nuniform sampler2D texture;\n\nvarying vec3 f_normal, f_lightDirection, f_eyeDirection, f_data, f_position;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n vec3 N = normalize(f_normal);\n vec3 L = normalize(f_lightDirection);\n vec3 V = normalize(f_eyeDirection);\n\n if(gl_FrontFacing) {\n N = -N;\n }\n\n float specular = min(1.0, max(0.0, cookTorranceSpecular(L, V, N, roughness, fresnel)));\n float diffuse = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n vec4 surfaceColor = f_color * texture2D(texture, f_uv);\n vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular, 1.0);\n\n gl_FragColor = litColor * opacity;\n}\n"]) +var pickVertSrc = glslify(["precision highp float;\n\nprecision highp float;\n#define GLSLIFY 1\n\nvec3 getOrthogonalVector(vec3 v) {\n // Return up-vector for only-z vector.\n // Return ax + by + cz = 0, a point that lies on the plane that has v as a normal and that isn't (0,0,0).\n // From the above if-statement we have ||a|| > 0 U ||b|| > 0.\n // Assign z = 0, x = -b, y = a:\n // a*-b + b*a + c*0 = -ba + ba + 0 = 0\n if (v.x*v.x > v.z*v.z || v.y*v.y > v.z*v.z) {\n return normalize(vec3(-v.y, v.x, 0.0));\n } else {\n return normalize(vec3(0.0, v.z, -v.y));\n }\n}\n\n// Calculate the tube vertex and normal at the given index.\n//\n// The returned vertex is for a tube ring with its center at origin, radius of length(d), pointing in the direction of d.\n//\n// Each tube segment is made up of a ring of vertices.\n// These vertices are used to make up the triangles of the tube by connecting them together in the vertex array.\n// The indexes of tube segments run from 0 to 8.\n//\nvec3 getTubePosition(vec3 d, float index, out vec3 normal) {\n float segmentCount = 8.0;\n\n float angle = 2.0 * 3.14159 * (index / segmentCount);\n\n vec3 u = getOrthogonalVector(d);\n vec3 v = normalize(cross(u, d));\n\n vec3 x = u * cos(angle) * length(d);\n vec3 y = v * sin(angle) * length(d);\n vec3 v3 = x + y;\n\n normal = normalize(v3);\n\n return v3;\n}\n\nattribute vec4 vector;\nattribute vec4 position;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\nuniform float tubeScale;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n vec3 normal;\n vec3 XYZ = getTubePosition(mat3(model) * (tubeScale * vector.w * normalize(vector.xyz)), position.w, normal);\n vec4 tubePosition = model * vec4(position.xyz, 1.0) + vec4(XYZ, 0.0);\n\n gl_Position = projection * view * tubePosition;\n f_id = id;\n f_position = position.xyz;\n}\n"]) +var pickFragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float pickId;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n\n gl_FragColor = vec4(pickId, f_id.xyz);\n}"]) + +exports.meshShader = { + vertex: triVertSrc, + fragment: triFragSrc, + attributes: [ + {name: 'position', type: 'vec4'}, + {name: 'color', type: 'vec4'}, + {name: 'uv', type: 'vec2'}, + {name: 'vector', type: 'vec4'} + ] +} +exports.pickShader = { + vertex: pickVertSrc, + fragment: pickFragSrc, + attributes: [ + {name: 'position', type: 'vec4'}, + {name: 'id', type: 'vec4'}, + {name: 'vector', type: 'vec4'} + ] +} + +},{"glslify":231}],143:[function(_glvis_,module,exports){ +"use strict"; + +var vec3 = _glvis_('gl-vec3'); +var vec4 = _glvis_('gl-vec4'); +var GRID_TYPES = ['xyz', 'xzy', 'yxz', 'yzx', 'zxy', 'zyx']; + +var streamToTube = function(stream, maxDivergence, minDistance, maxNorm) { + var points = stream.points; + var velocities = stream.velocities; + var divergences = stream.divergences; + + var verts = []; + var faces = []; + var vectors = []; + var previousVerts = []; + var currentVerts = []; + var intensities = []; + var previousIntensity = 0; + var currentIntensity = 0; + var currentVector = vec4.create(); + var previousVector = vec4.create(); + + var facets = 8; + + for (var i = 0; i < points.length; i++) { + var p = points[i]; + var fwd = velocities[i]; + var r = divergences[i]; + if (maxDivergence === 0) { + r = minDistance * 0.05; + } + currentIntensity = vec3.length(fwd) / maxNorm; + + currentVector = vec4.create(); + vec3.copy(currentVector, fwd); + currentVector[3] = r; + + for (var a = 0; a < facets; a++) { + currentVerts[a] = [p[0], p[1], p[2], a]; + } + if (previousVerts.length > 0) { + for (var a = 0; a < facets; a++) { + var a1 = (a+1) % facets; + verts.push( + previousVerts[a], + currentVerts[a], + currentVerts[a1], + + currentVerts[a1], + previousVerts[a1], + previousVerts[a] + ); + vectors.push( + previousVector, + currentVector, + currentVector, + + currentVector, + previousVector, + previousVector + ); + intensities.push( + previousIntensity, + currentIntensity, + currentIntensity, + + currentIntensity, + previousIntensity, + previousIntensity + ); + + var len = verts.length; + faces.push( + [len-6, len-5, len-4], + [len-3, len-2, len-1] + ); + } + } + var tmp1 = previousVerts; + previousVerts = currentVerts; + currentVerts = tmp1; + + var tmp2 = previousVector; + previousVector = currentVector; + currentVector = tmp2; + + var tmp3 = previousIntensity; + previousIntensity = currentIntensity; + currentIntensity = tmp3; + } + return { + positions: verts, + cells: faces, + vectors: vectors, + vertexIntensity: intensities + }; +}; + +var createTubes = function(streams, colormap, maxDivergence, minDistance) { + + var maxNorm = 0; + for (var i=0; i v) return i-1; + } + return i; +}; + +var clamp = function(v, min, max) { + return v < min ? min : (v > max ? max : v); +}; + +var sampleMeshgrid = function(point, vectorField, gridInfo) { + var vectors = vectorField.vectors; + var meshgrid = vectorField.meshgrid; + + var x = point[0]; + var y = point[1]; + var z = point[2]; + + var w = meshgrid[0].length; + var h = meshgrid[1].length; + var d = meshgrid[2].length; + + // Find the index of the nearest smaller value in the meshgrid for each coordinate of (x,y,z). + // The nearest smaller value index for x is the index x0 such that + // meshgrid[0][x0] < x and for all x1 > x0, meshgrid[0][x1] >= x. + var x0 = findLastSmallerIndex(meshgrid[0], x); + var y0 = findLastSmallerIndex(meshgrid[1], y); + var z0 = findLastSmallerIndex(meshgrid[2], z); + + // Get the nearest larger meshgrid value indices. + // From the above "nearest smaller value", we know that + // meshgrid[0][x0] < x + // meshgrid[0][x0+1] >= x + var x1 = x0 + 1; + var y1 = y0 + 1; + var z1 = z0 + 1; + + x0 = clamp(x0, 0, w-1); + x1 = clamp(x1, 0, w-1); + y0 = clamp(y0, 0, h-1); + y1 = clamp(y1, 0, h-1); + z0 = clamp(z0, 0, d-1); + z1 = clamp(z1, 0, d-1); + + // Reject points outside the meshgrid, return a zero vector. + if (x0 < 0 || y0 < 0 || z0 < 0 || x1 > w-1 || y1 > h-1 || z1 > d-1) { + return vec3.create(); + } + + // Normalize point coordinates to 0..1 scaling factor between x0 and x1. + var mX0 = meshgrid[0][x0]; + var mX1 = meshgrid[0][x1]; + var mY0 = meshgrid[1][y0]; + var mY1 = meshgrid[1][y1]; + var mZ0 = meshgrid[2][z0]; + var mZ1 = meshgrid[2][z1]; + var xf = (x - mX0) / (mX1 - mX0); + var yf = (y - mY0) / (mY1 - mY0); + var zf = (z - mZ0) / (mZ1 - mZ0); + + if (!isFinite(xf)) xf = 0.5; + if (!isFinite(yf)) yf = 0.5; + if (!isFinite(zf)) zf = 0.5; + + var x0off; + var x1off; + var y0off; + var y1off; + var z0off; + var z1off; + + if(gridInfo.reversedX) { + x0 = w - 1 - x0; + x1 = w - 1 - x1; + } + + if(gridInfo.reversedY) { + y0 = h - 1 - y0; + y1 = h - 1 - y1; + } + + if(gridInfo.reversedZ) { + z0 = d - 1 - z0; + z1 = d - 1 - z1; + } + + switch(gridInfo.filled) { + case 5: // 'zyx' + z0off = z0; + z1off = z1; + y0off = y0*d; + y1off = y1*d; + x0off = x0*d*h; + x1off = x1*d*h; + break; + + case 4: // 'zxy' + z0off = z0; + z1off = z1; + x0off = x0*d; + x1off = x1*d; + y0off = y0*d*w; + y1off = y1*d*w; + break; + + case 3: // 'yzx' + y0off = y0; + y1off = y1; + z0off = z0*h; + z1off = z1*h; + x0off = x0*h*d; + x1off = x1*h*d; + break; + + case 2: // 'yxz' + y0off = y0; + y1off = y1; + x0off = x0*h; + x1off = x1*h; + z0off = z0*h*w; + z1off = z1*h*w; + break; + + case 1: // 'xzy' + x0off = x0; + x1off = x1; + z0off = z0*w; + z1off = z1*w; + y0off = y0*w*d; + y1off = y1*w*d; + break; + + default: // case 0: // 'xyz' + x0off = x0; + x1off = x1; + y0off = y0*w; + y1off = y1*w; + z0off = z0*w*h; + z1off = z1*w*h; + break; + } + + // Sample data vectors around the (x,y,z) point. + var v000 = vectors[x0off + y0off + z0off]; + var v001 = vectors[x0off + y0off + z1off]; + var v010 = vectors[x0off + y1off + z0off]; + var v011 = vectors[x0off + y1off + z1off]; + var v100 = vectors[x1off + y0off + z0off]; + var v101 = vectors[x1off + y0off + z1off]; + var v110 = vectors[x1off + y1off + z0off]; + var v111 = vectors[x1off + y1off + z1off]; + + var c00 = vec3.create(); + var c01 = vec3.create(); + var c10 = vec3.create(); + var c11 = vec3.create(); + + vec3.lerp(c00, v000, v100, xf); + vec3.lerp(c01, v001, v101, xf); + vec3.lerp(c10, v010, v110, xf); + vec3.lerp(c11, v011, v111, xf); + + var c0 = vec3.create(); + var c1 = vec3.create(); + + vec3.lerp(c0, c00, c10, yf); + vec3.lerp(c1, c01, c11, yf); + + var c = vec3.create(); + + vec3.lerp(c, c0, c1, zf); + + return c; +}; + + +var vabs = function(dst, v) { + var x = v[0]; + var y = v[1]; + var z = v[2]; + dst[0] = x < 0 ? -x : x; + dst[1] = y < 0 ? -y : y; + dst[2] = z < 0 ? -z : z; + return dst; +}; + +var findMinSeparation = function(xs) { + var minSeparation = Infinity; + xs.sort(function(a, b) { return a - b; }); + var len = xs.length; + for (var i=1; i maxX || + y < minY || y > maxY || + z < minZ || z > maxZ + ); + }; + + var boundsSize = vec3.distance(bounds[0], bounds[1]); + var maxStepSize = 10 * boundsSize / maxLength; + var maxStepSizeSq = maxStepSize * maxStepSize; + + var minDistance = 1; + var maxDivergence = 0; // For component-wise divergence vec3.create(); + + // In case we need to do component-wise divergence visualization + // var tmp = vec3.create(); + + var len = positions.length; + if (len > 1) { + minDistance = calculateMinPositionDistance(positions); + } + + for (var i = 0; i < len; i++) { + var p = vec3.create(); + vec3.copy(p, positions[i]); + + var stream = [p]; + var velocities = []; + var v = getVelocity(p); + var op = p; + velocities.push(v); + + var divergences = []; + + var dv = getDivergence(p, v); + var dvLength = vec3.length(dv); + if (isFinite(dvLength) && dvLength > maxDivergence) { + maxDivergence = dvLength; + } + // In case we need to do component-wise divergence visualization + // vec3.max(maxDivergence, maxDivergence, vabs(tmp, dv)); + divergences.push(dvLength); + + streams.push({points: stream, velocities: velocities, divergences: divergences}); + + var j = 0; + + while (j < maxLength * 100 && stream.length < maxLength && inBounds(p)) { + j++; + var np = vec3.clone(v); + var sqLen = vec3.squaredLength(np); + if (sqLen === 0) { + break; + } else if (sqLen > maxStepSizeSq) { + vec3.scale(np, np, maxStepSize / Math.sqrt(sqLen)); + } + vec3.add(np, np, p); + + v = getVelocity(np); + + if (vec3.squaredDistance(op, np) - maxStepSizeSq > -0.0001 * maxStepSizeSq) { + stream.push(np); + op = np; + velocities.push(v); + var dv = getDivergence(np, v); + var dvLength = vec3.length(dv); + if (isFinite(dvLength) && dvLength > maxDivergence) { + maxDivergence = dvLength; + } + // In case we need to do component-wise divergence visualization + //vec3.max(maxDivergence, maxDivergence, vabs(tmp, dv)); + divergences.push(dvLength); + } + + p = np; + } + } + + var tubes = createTubes(streams, vectorField.colormap, maxDivergence, minDistance); + + if (absoluteTubeSize) { + tubes.tubeScale = absoluteTubeSize; + } else { + // Avoid division by zero. + if (maxDivergence === 0) { + maxDivergence = 1; + } + tubes.tubeScale = tubeSize * 0.5 * minDistance / maxDivergence; + } + + return tubes; +}; + +var shaders = _glvis_('./lib/shaders'); +var createMesh = _glvis_('gl-cone3d').createMesh; +module.exports.createTubeMesh = function(gl, params) { + return createMesh(gl, params, { + shaders: shaders, + traceType: 'streamtube' + }); +} + +},{"./lib/shaders":142,"gl-cone3d":79,"gl-vec3":169,"gl-vec4":205}],144:[function(_glvis_,module,exports){ +var createShader = _glvis_('gl-shader') +var glslify = _glvis_('glslify') + +var vertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec4 uv;\nattribute vec3 f;\nattribute vec3 normal;\n\nuniform vec3 objectOffset;\nuniform mat4 model, view, projection, inverseModel;\nuniform vec3 lightPosition, eyePosition;\nuniform sampler2D colormap;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec2 planeCoordinate;\nvarying vec3 lightDirection, eyeDirection, surfaceNormal;\nvarying vec4 vColor;\n\nvoid main() {\n vec3 localCoordinate = vec3(uv.zw, f.x);\n worldCoordinate = objectOffset + localCoordinate;\n vec4 worldPosition = model * vec4(worldCoordinate, 1.0);\n vec4 clipPosition = projection * view * worldPosition;\n gl_Position = clipPosition;\n kill = f.y;\n value = f.z;\n planeCoordinate = uv.xy;\n\n vColor = texture2D(colormap, vec2(value, value));\n\n //Lighting geometry parameters\n vec4 cameraCoordinate = view * worldPosition;\n cameraCoordinate.xyz /= cameraCoordinate.w;\n lightDirection = lightPosition - cameraCoordinate.xyz;\n eyeDirection = eyePosition - cameraCoordinate.xyz;\n surfaceNormal = normalize((vec4(normal,0) * inverseModel).xyz);\n}\n"]) +var fragSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nfloat beckmannDistribution(float x, float roughness) {\n float NdotH = max(x, 0.0001);\n float cos2Alpha = NdotH * NdotH;\n float tan2Alpha = (cos2Alpha - 1.0) / cos2Alpha;\n float roughness2 = roughness * roughness;\n float denom = 3.141592653589793 * roughness2 * cos2Alpha * cos2Alpha;\n return exp(tan2Alpha / roughness2) / denom;\n}\n\nfloat beckmannSpecular(\n vec3 lightDirection,\n vec3 viewDirection,\n vec3 surfaceNormal,\n float roughness) {\n return beckmannDistribution(dot(surfaceNormal, normalize(lightDirection + viewDirection)), roughness);\n}\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 lowerBound, upperBound;\nuniform float contourTint;\nuniform vec4 contourColor;\nuniform sampler2D colormap;\nuniform vec3 clipBounds[2];\nuniform float roughness, fresnel, kambient, kdiffuse, kspecular, opacity;\nuniform float vertexColor;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec3 lightDirection, eyeDirection, surfaceNormal;\nvarying vec4 vColor;\n\nvoid main() {\n if (\n kill > 0.0 ||\n vColor.a == 0.0 ||\n outOfRange(clipBounds[0], clipBounds[1], worldCoordinate)\n ) discard;\n\n vec3 N = normalize(surfaceNormal);\n vec3 V = normalize(eyeDirection);\n vec3 L = normalize(lightDirection);\n\n if(gl_FrontFacing) {\n N = -N;\n }\n\n float specular = max(beckmannSpecular(L, V, N, roughness), 0.);\n float diffuse = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n //decide how to interpolate color — in vertex or in fragment\n vec4 surfaceColor =\n step(vertexColor, .5) * texture2D(colormap, vec2(value, value)) +\n step(.5, vertexColor) * vColor;\n\n vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular, 1.0);\n\n gl_FragColor = mix(litColor, contourColor, contourTint) * opacity;\n}\n"]) +var contourVertSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec4 uv;\nattribute float f;\n\nuniform vec3 objectOffset;\nuniform mat3 permutation;\nuniform mat4 model, view, projection;\nuniform float height, zOffset;\nuniform sampler2D colormap;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec2 planeCoordinate;\nvarying vec3 lightDirection, eyeDirection, surfaceNormal;\nvarying vec4 vColor;\n\nvoid main() {\n vec3 dataCoordinate = permutation * vec3(uv.xy, height);\n worldCoordinate = objectOffset + dataCoordinate;\n vec4 worldPosition = model * vec4(worldCoordinate, 1.0);\n\n vec4 clipPosition = projection * view * worldPosition;\n clipPosition.z += zOffset;\n\n gl_Position = clipPosition;\n value = f + objectOffset.z;\n kill = -1.0;\n planeCoordinate = uv.zw;\n\n vColor = texture2D(colormap, vec2(value, value));\n\n //Don't do lighting for contours\n surfaceNormal = vec3(1,0,0);\n eyeDirection = vec3(0,1,0);\n lightDirection = vec3(0,0,1);\n}\n"]) +var pickSrc = glslify(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n return ((p > max(a, b)) || \n (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n return (outOfRange(a.x, b.x, p.x) ||\n outOfRange(a.y, b.y, p.y) ||\n outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec2 shape;\nuniform vec3 clipBounds[2];\nuniform float pickId;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec2 planeCoordinate;\nvarying vec3 surfaceNormal;\n\nvec2 splitFloat(float v) {\n float vh = 255.0 * v;\n float upper = floor(vh);\n float lower = fract(vh);\n return vec2(upper / 255.0, floor(lower * 16.0) / 16.0);\n}\n\nvoid main() {\n if ((kill > 0.0) ||\n (outOfRange(clipBounds[0], clipBounds[1], worldCoordinate))) discard;\n\n vec2 ux = splitFloat(planeCoordinate.x / shape.x);\n vec2 uy = splitFloat(planeCoordinate.y / shape.y);\n gl_FragColor = vec4(pickId, ux.x, uy.x, ux.y + (uy.y/16.0));\n}\n"]) + +exports.createShader = function (gl) { + var shader = createShader(gl, vertSrc, fragSrc, null, [ + {name: 'uv', type: 'vec4'}, + {name: 'f', type: 'vec3'}, + {name: 'normal', type: 'vec3'} + ]) + shader.attributes.uv.location = 0 + shader.attributes.f.location = 1 + shader.attributes.normal.location = 2 + return shader +} +exports.createPickShader = function (gl) { + var shader = createShader(gl, vertSrc, pickSrc, null, [ + {name: 'uv', type: 'vec4'}, + {name: 'f', type: 'vec3'}, + {name: 'normal', type: 'vec3'} + ]) + shader.attributes.uv.location = 0 + shader.attributes.f.location = 1 + shader.attributes.normal.location = 2 + return shader +} +exports.createContourShader = function (gl) { + var shader = createShader(gl, contourVertSrc, fragSrc, null, [ + {name: 'uv', type: 'vec4'}, + {name: 'f', type: 'float'} + ]) + shader.attributes.uv.location = 0 + shader.attributes.f.location = 1 + return shader +} +exports.createPickContourShader = function (gl) { + var shader = createShader(gl, contourVertSrc, pickSrc, null, [ + {name: 'uv', type: 'vec4'}, + {name: 'f', type: 'float'} + ]) + shader.attributes.uv.location = 0 + shader.attributes.f.location = 1 + return shader +} + +},{"gl-shader":132,"glslify":231}],145:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createSurfacePlot + +var bits = _glvis_('bit-twiddle') +var createBuffer = _glvis_('gl-buffer') +var createVAO = _glvis_('gl-vao') +var createTexture = _glvis_('gl-texture2d') +var pool = _glvis_('typedarray-pool') +var colormap = _glvis_('colormap') +var ops = _glvis_('ndarray-ops') +var pack = _glvis_('ndarray-pack') +var ndarray = _glvis_('ndarray') +var surfaceNets = _glvis_('surface-nets') +var multiply = _glvis_('gl-mat4/multiply') +var invert = _glvis_('gl-mat4/invert') +var bsearch = _glvis_('binary-search-bounds') +var gradient = _glvis_('ndarray-gradient') +var shaders = _glvis_('./lib/shaders') + +var createShader = shaders.createShader +var createContourShader = shaders.createContourShader +var createPickShader = shaders.createPickShader +var createPickContourShader = shaders.createPickContourShader + +var SURFACE_VERTEX_SIZE = 4 * (4 + 3 + 3) + +var IDENTITY = [ + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 ] + +var QUAD = [ + [0, 0], + [0, 1], + [1, 0], + [1, 1], + [1, 0], + [0, 1] +] + +var PERMUTATIONS = [ + [0, 0, 0, 0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0, 0, 0, 0] +] + +;(function () { + for (var i = 0; i < 3; ++i) { + var p = PERMUTATIONS[i] + var u = (i + 1) % 3 + var v = (i + 2) % 3 + p[u + 0] = 1 + p[v + 3] = 1 + p[i + 6] = 1 + } +})() + +function SurfacePickResult (position, index, uv, level, dataCoordinate) { + this.position = position + this.index = index + this.uv = uv + this.level = level + this.dataCoordinate = dataCoordinate +} + +var N_COLORS = 256 + +function SurfacePlot ( + gl, + shape, + bounds, + shader, + pickShader, + coordinates, + vao, + colorMap, + contourShader, + contourPickShader, + contourBuffer, + contourVAO, + dynamicBuffer, + dynamicVAO, + objectOffset) { + this.gl = gl + this.shape = shape + this.bounds = bounds + this.objectOffset = objectOffset + this.intensityBounds = [] + + this._shader = shader + this._pickShader = pickShader + this._coordinateBuffer = coordinates + this._vao = vao + this._colorMap = colorMap + + this._contourShader = contourShader + this._contourPickShader = contourPickShader + this._contourBuffer = contourBuffer + this._contourVAO = contourVAO + this._contourOffsets = [[], [], []] + this._contourCounts = [[], [], []] + this._vertexCount = 0 + + this._pickResult = new SurfacePickResult([0, 0, 0], [0, 0], [0, 0], [0, 0, 0], [0, 0, 0]) + + this._dynamicBuffer = dynamicBuffer + this._dynamicVAO = dynamicVAO + this._dynamicOffsets = [0, 0, 0] + this._dynamicCounts = [0, 0, 0] + + this.contourWidth = [ 1, 1, 1 ] + this.contourLevels = [[1], [1], [1]] + this.contourTint = [0, 0, 0] + this.contourColor = [[0.5, 0.5, 0.5, 1], [0.5, 0.5, 0.5, 1], [0.5, 0.5, 0.5, 1]] + + this.showContour = true + this.showSurface = true + + this.enableHighlight = [true, true, true] + this.highlightColor = [[0, 0, 0, 1], [0, 0, 0, 1], [0, 0, 0, 1]] + this.highlightTint = [ 1, 1, 1 ] + this.highlightLevel = [-1, -1, -1] + + // Dynamic contour options + this.enableDynamic = [ true, true, true ] + this.dynamicLevel = [ NaN, NaN, NaN ] + this.dynamicColor = [ [0, 0, 0, 1], [0, 0, 0, 1], [0, 0, 0, 1] ] + this.dynamicTint = [ 1, 1, 1 ] + this.dynamicWidth = [ 1, 1, 1 ] + + this.axesBounds = [[Infinity, Infinity, Infinity], [-Infinity, -Infinity, -Infinity]] + this.surfaceProject = [ false, false, false ] + this.contourProject = [[ false, false, false ], + [ false, false, false ], + [ false, false, false ]] + + this.colorBounds = [ false, false ] + + // Store xyz fields, need this for picking + this._field = [ + ndarray(pool.mallocFloat(1024), [0, 0]), + ndarray(pool.mallocFloat(1024), [0, 0]), + ndarray(pool.mallocFloat(1024), [0, 0]) ] + + this.pickId = 1 + this.clipBounds = [[-Infinity, -Infinity, -Infinity], [Infinity, Infinity, Infinity]] + + this.snapToData = false + + this.pixelRatio = 1 + + this.opacity = 1.0 + + this.lightPosition = [10, 10000, 0] + this.ambientLight = 0.8 + this.diffuseLight = 0.8 + this.specularLight = 2.0 + this.roughness = 0.5 + this.fresnel = 1.5 + this.vertexColor = 0 + + this.dirty = true +} + +var proto = SurfacePlot.prototype + +proto.genColormap = function (name, opacityscale) { + var hasAlpha = false + + var x = pack([colormap({ + colormap: name, + nshades: N_COLORS, + format: 'rgba' + }).map(function (c, i) { + var a = opacityscale ? getOpacityFromScale(i / 255.0, opacityscale) : c[3] + if(a < 1) hasAlpha = true + return [c[0], c[1], c[2], 255 * a] + })]) + ops.divseq(x, 255.0) + + this.hasAlphaScale = hasAlpha + return x +} + +proto.isTransparent = function () { + return this.opacity < 1 || this.hasAlphaScale +} + +proto.isOpaque = function () { + return !this.isTransparent() +} + +proto.pickSlots = 1 + +proto.setPickBase = function (id) { + this.pickId = id +} + +function getOpacityFromScale(ratio, opacityscale) { // copied form gl-mesh3d + if(!opacityscale) return 1 + if(!opacityscale.length) return 1 + + for(var i = 0; i < opacityscale.length; ++i) { + if(opacityscale.length < 2) return 1 + if(opacityscale[i][0] === ratio) return opacityscale[i][1] + if(opacityscale[i][0] > ratio && i > 0) { + var d = (opacityscale[i][0] - ratio) / (opacityscale[i][0] - opacityscale[i - 1][0]) + return opacityscale[i][1] * (1 - d) + d * opacityscale[i - 1][1] + } + } + + return 1 +} + +var ZERO_VEC = [0, 0, 0] + +var PROJECT_DATA = { + showSurface: false, + showContour: false, + projections: [IDENTITY.slice(), IDENTITY.slice(), IDENTITY.slice()], + clipBounds: [ + [[0, 0, 0], [0, 0, 0]], + [[0, 0, 0], [0, 0, 0]], + [[0, 0, 0], [0, 0, 0]]] +} + +function computeProjectionData (camera, obj) { + var i, j, k + + // Compute cube properties + var cubeAxis = (obj.axes && obj.axes.lastCubeProps.axis) || ZERO_VEC + + var showSurface = obj.showSurface + var showContour = obj.showContour + + for (i = 0; i < 3; ++i) { + showSurface = showSurface || obj.surfaceProject[i] + for (j = 0; j < 3; ++j) { + showContour = showContour || obj.contourProject[i][j] + } + } + + for (i = 0; i < 3; ++i) { + // Construct projection onto axis + var axisSquish = PROJECT_DATA.projections[i] + for (j = 0; j < 16; ++j) { + axisSquish[j] = 0 + } + for (j = 0; j < 4; ++j) { + axisSquish[5 * j] = 1 + } + axisSquish[5 * i] = 0 + axisSquish[12 + i] = obj.axesBounds[+(cubeAxis[i] > 0)][i] + multiply(axisSquish, camera.model, axisSquish) + + var nclipBounds = PROJECT_DATA.clipBounds[i] + for (k = 0; k < 2; ++k) { + for (j = 0; j < 3; ++j) { + nclipBounds[k][j] = camera.clipBounds[k][j] + } + } + nclipBounds[0][i] = -1e8 + nclipBounds[1][i] = 1e8 + } + + PROJECT_DATA.showSurface = showSurface + PROJECT_DATA.showContour = showContour + + return PROJECT_DATA +} + +var UNIFORMS = { + model: IDENTITY, + view: IDENTITY, + projection: IDENTITY, + inverseModel: IDENTITY.slice(), + lowerBound: [0, 0, 0], + upperBound: [0, 0, 0], + colorMap: 0, + clipBounds: [[0, 0, 0], [0, 0, 0]], + height: 0.0, + contourTint: 0, + contourColor: [0, 0, 0, 1], + permutation: [1, 0, 0, 0, 1, 0, 0, 0, 1], + zOffset: -1e-4, + objectOffset: [0, 0, 0], + kambient: 1, + kdiffuse: 1, + kspecular: 1, + lightPosition: [1000, 1000, 1000], + eyePosition: [0, 0, 0], + roughness: 1, + fresnel: 1, + opacity: 1, + vertexColor: 0 +} + +var MATRIX_INVERSE = IDENTITY.slice() +var DEFAULT_PERM = [1, 0, 0, 0, 1, 0, 0, 0, 1] + +function drawCore (params, transparent) { + params = params || {} + var gl = this.gl + + gl.disable(gl.CULL_FACE) + + this._colorMap.bind(0) + + var uniforms = UNIFORMS + uniforms.model = params.model || IDENTITY + uniforms.view = params.view || IDENTITY + uniforms.projection = params.projection || IDENTITY + uniforms.lowerBound = [this.bounds[0][0], this.bounds[0][1], this.colorBounds[0] || this.bounds[0][2]] + uniforms.upperBound = [this.bounds[1][0], this.bounds[1][1], this.colorBounds[1] || this.bounds[1][2]] + uniforms.objectOffset = this.objectOffset + uniforms.contourColor = this.contourColor[0] + + uniforms.inverseModel = invert(uniforms.inverseModel, uniforms.model) + + for (var i = 0; i < 2; ++i) { + var clipClamped = uniforms.clipBounds[i] + for (var j = 0; j < 3; ++j) { + clipClamped[j] = Math.min(Math.max(this.clipBounds[i][j], -1e8), 1e8) + } + } + + uniforms.kambient = this.ambientLight + uniforms.kdiffuse = this.diffuseLight + uniforms.kspecular = this.specularLight + + uniforms.roughness = this.roughness + uniforms.fresnel = this.fresnel + uniforms.opacity = this.opacity + + uniforms.height = 0.0 + uniforms.permutation = DEFAULT_PERM + + uniforms.vertexColor = this.vertexColor + + // Compute camera matrix inverse + var invCameraMatrix = MATRIX_INVERSE + multiply(invCameraMatrix, uniforms.view, uniforms.model) + multiply(invCameraMatrix, uniforms.projection, invCameraMatrix) + invert(invCameraMatrix, invCameraMatrix) + + for (i = 0; i < 3; ++i) { + uniforms.eyePosition[i] = invCameraMatrix[12 + i] / invCameraMatrix[15] + } + + var w = invCameraMatrix[15] + for (i = 0; i < 3; ++i) { + w += this.lightPosition[i] * invCameraMatrix[4 * i + 3] + } + for (i = 0; i < 3; ++i) { + var s = invCameraMatrix[12 + i] + for (j = 0; j < 3; ++j) { + s += invCameraMatrix[4 * j + i] * this.lightPosition[j] + } + uniforms.lightPosition[i] = s / w + } + + var projectData = computeProjectionData(uniforms, this) + + if (projectData.showSurface) { + // Set up uniforms + this._shader.bind() + this._shader.uniforms = uniforms + + // Draw it + this._vao.bind() + + if (this.showSurface && this._vertexCount) { + this._vao.draw(gl.TRIANGLES, this._vertexCount) + } + + // Draw projections of surface + for (i = 0; i < 3; ++i) { + if (!this.surfaceProject[i] || !this.vertexCount) { + continue + } + this._shader.uniforms.model = projectData.projections[i] + this._shader.uniforms.clipBounds = projectData.clipBounds[i] + this._vao.draw(gl.TRIANGLES, this._vertexCount) + } + + this._vao.unbind() + } + + if (projectData.showContour) { + var shader = this._contourShader + + // Don't apply lighting to contours + uniforms.kambient = 1.0 + uniforms.kdiffuse = 0.0 + uniforms.kspecular = 0.0 + uniforms.opacity = 1.0 + + shader.bind() + shader.uniforms = uniforms + + // Draw contour lines + var vao = this._contourVAO + vao.bind() + + // Draw contour levels + for (i = 0; i < 3; ++i) { + shader.uniforms.permutation = PERMUTATIONS[i] + gl.lineWidth(this.contourWidth[i] * this.pixelRatio) + + for (j = 0; j < this.contourLevels[i].length; ++j) { + if (j === this.highlightLevel[i]) { + shader.uniforms.contourColor = this.highlightColor[i] + shader.uniforms.contourTint = this.highlightTint[i] + } else if (j === 0 || (j - 1) === this.highlightLevel[i]) { + shader.uniforms.contourColor = this.contourColor[i] + shader.uniforms.contourTint = this.contourTint[i] + } + if (!this._contourCounts[i][j]) { + continue + } + + shader.uniforms.height = this.contourLevels[i][j] + vao.draw(gl.LINES, this._contourCounts[i][j], this._contourOffsets[i][j]) + } + } + + // Draw projections of surface + for (i = 0; i < 3; ++i) { + shader.uniforms.model = projectData.projections[i] + shader.uniforms.clipBounds = projectData.clipBounds[i] + for (j = 0; j < 3; ++j) { + if (!this.contourProject[i][j]) { + continue + } + shader.uniforms.permutation = PERMUTATIONS[j] + gl.lineWidth(this.contourWidth[j] * this.pixelRatio) + for (var k = 0; k < this.contourLevels[j].length; ++k) { + if (k === this.highlightLevel[j]) { + shader.uniforms.contourColor = this.highlightColor[j] + shader.uniforms.contourTint = this.highlightTint[j] + } else if (k === 0 || (k - 1) === this.highlightLevel[j]) { + shader.uniforms.contourColor = this.contourColor[j] + shader.uniforms.contourTint = this.contourTint[j] + } + if (!this._contourCounts[j][k]) { + continue + } + + shader.uniforms.height = this.contourLevels[j][k] + vao.draw(gl.LINES, this._contourCounts[j][k], this._contourOffsets[j][k]) + } + } + } + + vao.unbind() + + // Draw dynamic contours + vao = this._dynamicVAO + vao.bind() + + // Draw contour levels + for (i = 0; i < 3; ++i) { + if (this._dynamicCounts[i] === 0) { + continue + } + + shader.uniforms.model = uniforms.model + shader.uniforms.clipBounds = uniforms.clipBounds + shader.uniforms.permutation = PERMUTATIONS[i] + gl.lineWidth(this.dynamicWidth[i] * this.pixelRatio) + + shader.uniforms.contourColor = this.dynamicColor[i] + shader.uniforms.contourTint = this.dynamicTint[i] + shader.uniforms.height = this.dynamicLevel[i] + vao.draw(gl.LINES, this._dynamicCounts[i], this._dynamicOffsets[i]) + + for (j = 0; j < 3; ++j) { + if (!this.contourProject[j][i]) { + continue + } + + shader.uniforms.model = projectData.projections[j] + shader.uniforms.clipBounds = projectData.clipBounds[j] + vao.draw(gl.LINES, this._dynamicCounts[i], this._dynamicOffsets[i]) + } + } + + vao.unbind() + } +} + +proto.draw = function (params) { + return drawCore.call(this, params, false) +} + +proto.drawTransparent = function (params) { + return drawCore.call(this, params, true) +} + +var PICK_UNIFORMS = { + model: IDENTITY, + view: IDENTITY, + projection: IDENTITY, + inverseModel: IDENTITY, + clipBounds: [[0, 0, 0], [0, 0, 0]], + height: 0.0, + shape: [0, 0], + pickId: 0, + lowerBound: [0, 0, 0], + upperBound: [0, 0, 0], + zOffset: 0.0, + objectOffset: [0, 0, 0], + permutation: [1, 0, 0, 0, 1, 0, 0, 0, 1], + lightPosition: [0, 0, 0], + eyePosition: [0, 0, 0] +} + +proto.drawPick = function (params) { + params = params || {} + var gl = this.gl + gl.disable(gl.CULL_FACE) + + var uniforms = PICK_UNIFORMS + uniforms.model = params.model || IDENTITY + uniforms.view = params.view || IDENTITY + uniforms.projection = params.projection || IDENTITY + uniforms.shape = this._field[2].shape + uniforms.pickId = this.pickId / 255.0 + uniforms.lowerBound = this.bounds[0] + uniforms.upperBound = this.bounds[1] + uniforms.objectOffset = this.objectOffset + uniforms.permutation = DEFAULT_PERM + + for (var i = 0; i < 2; ++i) { + var clipClamped = uniforms.clipBounds[i] + for (var j = 0; j < 3; ++j) { + clipClamped[j] = Math.min(Math.max(this.clipBounds[i][j], -1e8), 1e8) + } + } + + var projectData = computeProjectionData(uniforms, this) + + if (projectData.showSurface) { + // Set up uniforms + this._pickShader.bind() + this._pickShader.uniforms = uniforms + + // Draw it + this._vao.bind() + this._vao.draw(gl.TRIANGLES, this._vertexCount) + + // Draw projections of surface + for (i = 0; i < 3; ++i) { + if (!this.surfaceProject[i]) { + continue + } + this._pickShader.uniforms.model = projectData.projections[i] + this._pickShader.uniforms.clipBounds = projectData.clipBounds[i] + this._vao.draw(gl.TRIANGLES, this._vertexCount) + } + + this._vao.unbind() + } + + if (projectData.showContour) { + var shader = this._contourPickShader + + shader.bind() + shader.uniforms = uniforms + + var vao = this._contourVAO + vao.bind() + + for (j = 0; j < 3; ++j) { + gl.lineWidth(this.contourWidth[j] * this.pixelRatio) + shader.uniforms.permutation = PERMUTATIONS[j] + for (i = 0; i < this.contourLevels[j].length; ++i) { + if (this._contourCounts[j][i]) { + shader.uniforms.height = this.contourLevels[j][i] + vao.draw(gl.LINES, this._contourCounts[j][i], this._contourOffsets[j][i]) + } + } + } + + // Draw projections of surface + for (i = 0; i < 3; ++i) { + shader.uniforms.model = projectData.projections[i] + shader.uniforms.clipBounds = projectData.clipBounds[i] + + for (j = 0; j < 3; ++j) { + if (!this.contourProject[i][j]) { + continue + } + + shader.uniforms.permutation = PERMUTATIONS[j] + gl.lineWidth(this.contourWidth[j] * this.pixelRatio) + for (var k = 0; k < this.contourLevels[j].length; ++k) { + if (this._contourCounts[j][k]) { + shader.uniforms.height = this.contourLevels[j][k] + vao.draw(gl.LINES, this._contourCounts[j][k], this._contourOffsets[j][k]) + } + } + } + } + + vao.unbind() + } +} + +proto.pick = function (selection) { + if (!selection) { + return null + } + + if (selection.id !== this.pickId) { + return null + } + + var shape = this._field[2].shape + + var result = this._pickResult + + // Compute uv coordinate + var x = shape[0] * (selection.value[0] + (selection.value[2] >> 4) / 16.0) / 255.0 + var ix = Math.floor(x) + var fx = x - ix + + var y = shape[1] * (selection.value[1] + (selection.value[2] & 15) / 16.0) / 255.0 + var iy = Math.floor(y) + var fy = y - iy + + ix += 1 + iy += 1 + + // Compute xyz coordinate + var pos = result.position + pos[0] = pos[1] = pos[2] = 0 + for (var dx = 0; dx < 2; ++dx) { + var s = dx ? fx : 1.0 - fx + for (var dy = 0; dy < 2; ++dy) { + var t = dy ? fy : 1.0 - fy + + var r = ix + dx + var c = iy + dy + var w = s * t + + for (var i = 0; i < 3; ++i) { + pos[i] += this._field[i].get(r, c) * w + } + } + } + + // Find closest level + var levelIndex = this._pickResult.level + for (var j = 0; j < 3; ++j) { + levelIndex[j] = bsearch.le(this.contourLevels[j], pos[j]) + if (levelIndex[j] < 0) { + if (this.contourLevels[j].length > 0) { + levelIndex[j] = 0 + } + } else if (levelIndex[j] < this.contourLevels[j].length - 1) { + var a = this.contourLevels[j][levelIndex[j]] + var b = this.contourLevels[j][levelIndex[j] + 1] + if (Math.abs(a - pos[j]) > Math.abs(b - pos[j])) { + levelIndex[j] += 1 + } + } + } + + result.index[0] = fx < 0.5 ? ix : (ix + 1) + result.index[1] = fy < 0.5 ? iy : (iy + 1) + + result.uv[0] = x / shape[0] + result.uv[1] = y / shape[1] + + for (i = 0; i < 3; ++i) { + result.dataCoordinate[i] = this._field[i].get(result.index[0], result.index[1]) + } + + return result +} + +proto.padField = function(dstField, srcField) { + var srcShape = srcField.shape.slice() + var dstShape = dstField.shape.slice() + + // Center + ops.assign(dstField.lo(1, 1).hi(srcShape[0], srcShape[1]), srcField) + + // Edges + ops.assign(dstField.lo(1).hi(srcShape[0], 1), + srcField.hi(srcShape[0], 1)) + ops.assign(dstField.lo(1, dstShape[1] - 1).hi(srcShape[0], 1), + srcField.lo(0, srcShape[1] - 1).hi(srcShape[0], 1)) + ops.assign(dstField.lo(0, 1).hi(1, srcShape[1]), + srcField.hi(1)) + ops.assign(dstField.lo(dstShape[0] - 1, 1).hi(1, srcShape[1]), + srcField.lo(srcShape[0] - 1)) + // Corners + dstField.set(0, 0, srcField.get(0, 0)) + dstField.set(0, dstShape[1] - 1, srcField.get(0, srcShape[1] - 1)) + dstField.set(dstShape[0] - 1, 0, srcField.get(srcShape[0] - 1, 0)) + dstField.set(dstShape[0] - 1, dstShape[1] - 1, srcField.get(srcShape[0] - 1, srcShape[1] - 1)) +} + +function handleArray (param, ctor) { + if (Array.isArray(param)) { + return [ ctor(param[0]), ctor(param[1]), ctor(param[2]) ] + } + return [ ctor(param), ctor(param), ctor(param) ] +} + +function toColor (x) { + if (Array.isArray(x)) { + if (x.length === 3) { + return [x[0], x[1], x[2], 1] + } + return [x[0], x[1], x[2], x[3]] + } + return [0, 0, 0, 1] +} + +function handleColor (param) { + if (Array.isArray(param)) { + if (Array.isArray(param)) { + return [ + toColor(param[0]), + toColor(param[1]), + toColor(param[2]) ] + } else { + var c = toColor(param) + return [ + c.slice(), + c.slice(), + c.slice() ] + } + } +} + +proto.update = function (params) { + params = params || {} + + this.objectOffset = params.objectOffset || this.objectOffset + + this.dirty = true + + if ('contourWidth' in params) { + this.contourWidth = handleArray(params.contourWidth, Number) + } + if ('showContour' in params) { + this.showContour = handleArray(params.showContour, Boolean) + } + if ('showSurface' in params) { + this.showSurface = !!params.showSurface + } + if ('contourTint' in params) { + this.contourTint = handleArray(params.contourTint, Boolean) + } + if ('contourColor' in params) { + this.contourColor = handleColor(params.contourColor) + } + if ('contourProject' in params) { + this.contourProject = handleArray(params.contourProject, function (x) { + return handleArray(x, Boolean) + }) + } + if ('surfaceProject' in params) { + this.surfaceProject = params.surfaceProject + } + if ('dynamicColor' in params) { + this.dynamicColor = handleColor(params.dynamicColor) + } + if ('dynamicTint' in params) { + this.dynamicTint = handleArray(params.dynamicTint, Number) + } + if ('dynamicWidth' in params) { + this.dynamicWidth = handleArray(params.dynamicWidth, Number) + } + if ('opacity' in params) { + this.opacity = params.opacity + } + if('opacityscale' in params) { + this.opacityscale = params.opacityscale + } + if ('colorBounds' in params) { + this.colorBounds = params.colorBounds + } + if ('vertexColor' in params) { + this.vertexColor = params.vertexColor ? 1 : 0; + } + if ('colormap' in params) { + this._colorMap.setPixels(this.genColormap(params.colormap, this.opacityscale)) + } + + var field = params.field || (params.coords && params.coords[2]) || null + var levelsChanged = false + + if (!field) { + if (this._field[2].shape[0] || this._field[2].shape[2]) { + field = this._field[2].lo(1, 1).hi(this._field[2].shape[0] - 2, this._field[2].shape[1] - 2) + } else { + field = this._field[2].hi(0, 0) + } + } + + // Update field + if ('field' in params || 'coords' in params) { + var fsize = (field.shape[0] + 2) * (field.shape[1] + 2) + + // Resize if necessary + if (fsize > this._field[2].data.length) { + pool.freeFloat(this._field[2].data) + this._field[2].data = pool.mallocFloat(bits.nextPow2(fsize)) + } + + // Pad field + this._field[2] = ndarray(this._field[2].data, [field.shape[0] + 2, field.shape[1] + 2]) + this.padField(this._field[2], field) + + // Save shape of field + this.shape = field.shape.slice() + var shape = this.shape + + // Resize coordinate fields if necessary + for (var i = 0; i < 2; ++i) { + if (this._field[2].size > this._field[i].data.length) { + pool.freeFloat(this._field[i].data) + this._field[i].data = pool.mallocFloat(this._field[2].size) + } + this._field[i] = ndarray(this._field[i].data, [shape[0] + 2, shape[1] + 2]) + } + + // Generate x/y coordinates + if (params.coords) { + var coords = params.coords + if (!Array.isArray(coords) || coords.length !== 3) { + throw new Error('gl-surface: invalid coordinates for x/y') + } + for (i = 0; i < 2; ++i) { + var coord = coords[i] + for (j = 0; j < 2; ++j) { + if (coord.shape[j] !== shape[j]) { + throw new Error('gl-surface: coords have incorrect shape') + } + } + this.padField(this._field[i], coord) + } + } else if (params.ticks) { + var ticks = params.ticks + if (!Array.isArray(ticks) || ticks.length !== 2) { + throw new Error('gl-surface: invalid ticks') + } + for (i = 0; i < 2; ++i) { + var tick = ticks[i] + if (Array.isArray(tick) || tick.length) { + tick = ndarray(tick) + } + if (tick.shape[0] !== shape[i]) { + throw new Error('gl-surface: invalid tick length') + } + // Make a copy view of the tick array + var tick2 = ndarray(tick.data, shape) + tick2.stride[i] = tick.stride[0] + tick2.stride[i ^ 1] = 0 + + // Fill in field array + this.padField(this._field[i], tick2) + } + } else { + for (i = 0; i < 2; ++i) { + var offset = [0, 0] + offset[i] = 1 + this._field[i] = ndarray(this._field[i].data, [shape[0] + 2, shape[1] + 2], offset, 0) + } + this._field[0].set(0, 0, 0) + for (var j = 0; j < shape[0]; ++j) { + this._field[0].set(j + 1, 0, j) + } + this._field[0].set(shape[0] + 1, 0, shape[0] - 1) + this._field[1].set(0, 0, 0) + for (j = 0; j < shape[1]; ++j) { + this._field[1].set(0, j + 1, j) + } + this._field[1].set(0, shape[1] + 1, shape[1] - 1) + } + + // Save shape + var fields = this._field + + // Compute surface normals + var dfields = ndarray(pool.mallocFloat(fields[2].size * 3 * 2), [3, shape[0] + 2, shape[1] + 2, 2]) + for (i = 0; i < 3; ++i) { + gradient(dfields.pick(i), fields[i], 'mirror') + } + var normals = ndarray(pool.mallocFloat(fields[2].size * 3), [shape[0] + 2, shape[1] + 2, 3]) + for (i = 0; i < shape[0] + 2; ++i) { + for (j = 0; j < shape[1] + 2; ++j) { + var dxdu = dfields.get(0, i, j, 0) + var dxdv = dfields.get(0, i, j, 1) + var dydu = dfields.get(1, i, j, 0) + var dydv = dfields.get(1, i, j, 1) + var dzdu = dfields.get(2, i, j, 0) + var dzdv = dfields.get(2, i, j, 1) + + var nx = dydu * dzdv - dydv * dzdu + var ny = dzdu * dxdv - dzdv * dxdu + var nz = dxdu * dydv - dxdv * dydu + + var nl = Math.sqrt(nx * nx + ny * ny + nz * nz) + if (nl < 1e-8) { + nl = Math.max(Math.abs(nx), Math.abs(ny), Math.abs(nz)) + if (nl < 1e-8) { + nz = 1.0 + ny = nx = 0.0 + nl = 1.0 + } else { + nl = 1.0 / nl + } + } else { + nl = 1.0 / Math.sqrt(nl) + } + + normals.set(i, j, 0, nx * nl) + normals.set(i, j, 1, ny * nl) + normals.set(i, j, 2, nz * nl) + } + } + pool.free(dfields.data) + + // Initialize surface + var lo = [ Infinity, Infinity, Infinity ] + var hi = [ -Infinity, -Infinity, -Infinity ] + var lo_intensity = Infinity + var hi_intensity = -Infinity + var count = (shape[0] - 1) * (shape[1] - 1) * 6 + var tverts = pool.mallocFloat(bits.nextPow2(10 * count)) + var tptr = 0 + var vertexCount = 0 + for (i = 0; i < shape[0] - 1; ++i) { + j_loop: + for (j = 0; j < shape[1] - 1; ++j) { + // Test for NaNs + for (var dx = 0; dx < 2; ++dx) { + for (var dy = 0; dy < 2; ++dy) { + for (var k = 0; k < 3; ++k) { + var f = this._field[k].get(1 + i + dx, 1 + j + dy) + if (isNaN(f) || !isFinite(f)) { + continue j_loop + } + } + } + } + for (k = 0; k < 6; ++k) { + var r = i + QUAD[k][0] + var c = j + QUAD[k][1] + + var tx = this._field[0].get(r + 1, c + 1) + var ty = this._field[1].get(r + 1, c + 1) + f = this._field[2].get(r + 1, c + 1) + + nx = normals.get(r + 1, c + 1, 0) + ny = normals.get(r + 1, c + 1, 1) + nz = normals.get(r + 1, c + 1, 2) + + if (params.intensity) { + vf = params.intensity.get(r, c) + } + + var vf = (params.intensity) ? + params.intensity.get(r, c) : + f + this.objectOffset[2]; + + tverts[tptr++] = r + tverts[tptr++] = c + tverts[tptr++] = tx + tverts[tptr++] = ty + tverts[tptr++] = f + tverts[tptr++] = 0 + tverts[tptr++] = vf + tverts[tptr++] = nx + tverts[tptr++] = ny + tverts[tptr++] = nz + + lo[0] = Math.min(lo[0], tx + this.objectOffset[0]) + lo[1] = Math.min(lo[1], ty + this.objectOffset[1]) + lo[2] = Math.min(lo[2], f + this.objectOffset[2]) + lo_intensity = Math.min(lo_intensity, vf) + + hi[0] = Math.max(hi[0], tx + this.objectOffset[0]) + hi[1] = Math.max(hi[1], ty + this.objectOffset[1]) + hi[2] = Math.max(hi[2], f + this.objectOffset[2]) + hi_intensity = Math.max(hi_intensity, vf) + + vertexCount += 1 + } + } + } + + if (params.intensityBounds) { + lo_intensity = +params.intensityBounds[0] + hi_intensity = +params.intensityBounds[1] + } + + // Scale all vertex intensities + for (i = 6; i < tptr; i += 10) { + tverts[i] = (tverts[i] - lo_intensity) / (hi_intensity - lo_intensity) + } + + this._vertexCount = vertexCount + this._coordinateBuffer.update(tverts.subarray(0, tptr)) + pool.freeFloat(tverts) + pool.free(normals.data) + + // Update bounds + this.bounds = [lo, hi] + + // Save intensity + this.intensity = params.intensity || this._field[2] + + if(this.intensityBounds[0] !== lo_intensity || this.intensityBounds[1] !== hi_intensity) { + levelsChanged = true + } + + // Save intensity bound + this.intensityBounds = [lo_intensity, hi_intensity] + } + + // Update level crossings + if ('levels' in params) { + var levels = params.levels + if (!Array.isArray(levels[0])) { + levels = [ [], [], levels ] + } else { + levels = levels.slice() + } + for (i = 0; i < 3; ++i) { + levels[i] = levels[i].slice() + levels[i].sort(function (a, b) { + return a - b + }) + } + for (i = 0; i < 3; ++i) { + for (j = 0; j < levels[i].length; ++j) { + levels[i][j] -= this.objectOffset[i] + } + } + change_test: + for (i = 0; i < 3; ++i) { + if (levels[i].length !== this.contourLevels[i].length) { + levelsChanged = true + break + } + for (j = 0; j < levels[i].length; ++j) { + if (levels[i][j] !== this.contourLevels[i][j]) { + levelsChanged = true + break change_test + } + } + } + this.contourLevels = levels + } + + if (levelsChanged) { + fields = this._field + shape = this.shape + + // Update contour lines + var contourVerts = [] + + for (var dim = 0; dim < 3; ++dim) { + var contourLevel = this.contourLevels[dim] + + var levelOffsets = [] + var levelCounts = [] + + var parts = [0, 0, 0] + + for (i = 0; i < contourLevel.length; ++i) { + var graph = surfaceNets(this._field[dim], contourLevel[i]) + + levelOffsets.push((contourVerts.length / 5) | 0) + vertexCount = 0 + + edge_loop: + for (j = 0; j < graph.cells.length; ++j) { + var e = graph.cells[j] + for (k = 0; k < 2; ++k) { + var p = graph.positions[e[k]] + + var x = p[0] + var ix = Math.floor(x) | 0 + var fx = x - ix + + var y = p[1] + var iy = Math.floor(y) | 0 + var fy = y - iy + + var hole = false + axis_loop: + for (var axis = 0; axis < 3; ++axis) { + parts[axis] = 0.0 + var iu = (dim + axis + 1) % 3 + for (dx = 0; dx < 2; ++dx) { + var s = dx ? fx : 1.0 - fx + r = Math.min(Math.max(ix + dx, 0), shape[0]) | 0 + for (dy = 0; dy < 2; ++dy) { + var t = dy ? fy : 1.0 - fy + c = Math.min(Math.max(iy + dy, 0), shape[1]) | 0 + + if (axis < 2) { + f = this._field[iu].get(r, c) + } else { + f = (this.intensity.get(r, c) - this.intensityBounds[0]) / (this.intensityBounds[1] - this.intensityBounds[0]) + } + if (!isFinite(f) || isNaN(f)) { + hole = true + break axis_loop + } + + var w = s * t + parts[axis] += w * f + } + } + } + + if (!hole) { + contourVerts.push( + parts[0], + parts[1], + p[0], + p[1], + parts[2] + ) + vertexCount += 1 + } else { + if (k > 0) { + // If we already added first edge, pop off verts + for (var l = 0; l < 5; ++l) { + contourVerts.pop() + } + vertexCount -= 1 + } + continue edge_loop + } + } + } + levelCounts.push(vertexCount) + } + + // Store results + this._contourOffsets[dim] = levelOffsets + this._contourCounts[dim] = levelCounts + + } + + var floatBuffer = pool.mallocFloat(contourVerts.length) + for (i = 0; i < contourVerts.length; ++i) { + floatBuffer[i] = contourVerts[i] + } + this._contourBuffer.update(floatBuffer) + pool.freeFloat(floatBuffer) + } +} + +proto.dispose = function () { + this._shader.dispose() + this._vao.dispose() + this._coordinateBuffer.dispose() + this._colorMap.dispose() + this._contourBuffer.dispose() + this._contourVAO.dispose() + this._contourShader.dispose() + this._contourPickShader.dispose() + this._dynamicBuffer.dispose() + this._dynamicVAO.dispose() + for (var i = 0; i < 3; ++i) { + pool.freeFloat(this._field[i].data) + } +} + +proto.highlight = function (selection) { + var i + + if (!selection) { + this._dynamicCounts = [0, 0, 0] + this.dyanamicLevel = [NaN, NaN, NaN] + this.highlightLevel = [-1, -1, -1] + return + } + + for (i = 0; i < 3; ++i) { + if (this.enableHighlight[i]) { + this.highlightLevel[i] = selection.level[i] + } else { + this.highlightLevel[i] = -1 + } + } + + var levels + if (this.snapToData) { + levels = selection.dataCoordinate + } else { + levels = selection.position + } + for (i = 0; i < 3; ++i) { + levels[i] -= this.objectOffset[i] + } + if ((!this.enableDynamic[0] || levels[0] === this.dynamicLevel[0]) && + (!this.enableDynamic[1] || levels[1] === this.dynamicLevel[1]) && + (!this.enableDynamic[2] || levels[2] === this.dynamicLevel[2])) { + return + } + + var vertexCount = 0 + var shape = this.shape + var scratchBuffer = pool.mallocFloat(12 * shape[0] * shape[1]) + + for (var d = 0; d < 3; ++d) { + if (!this.enableDynamic[d]) { + this.dynamicLevel[d] = NaN + this._dynamicCounts[d] = 0 + continue + } + + this.dynamicLevel[d] = levels[d] + + var u = (d + 1) % 3 + var v = (d + 2) % 3 + + var f = this._field[d] + var g = this._field[u] + var h = this._field[v] + + var graph = surfaceNets(f, levels[d]) + var edges = graph.cells + var positions = graph.positions + + this._dynamicOffsets[d] = vertexCount + + for (i = 0; i < edges.length; ++i) { + var e = edges[i] + for (var j = 0; j < 2; ++j) { + var p = positions[e[j]] + + var x = +p[0] + var ix = x | 0 + var jx = Math.min(ix + 1, shape[0]) | 0 + var fx = x - ix + var hx = 1.0 - fx + + var y = +p[1] + var iy = y | 0 + var jy = Math.min(iy + 1, shape[1]) | 0 + var fy = y - iy + var hy = 1.0 - fy + + var w00 = hx * hy + var w01 = hx * fy + var w10 = fx * hy + var w11 = fx * fy + + var cu = w00 * g.get(ix, iy) + + w01 * g.get(ix, jy) + + w10 * g.get(jx, iy) + + w11 * g.get(jx, jy) + + var cv = w00 * h.get(ix, iy) + + w01 * h.get(ix, jy) + + w10 * h.get(jx, iy) + + w11 * h.get(jx, jy) + + if (isNaN(cu) || isNaN(cv)) { + if (j) { + vertexCount -= 1 + } + break + } + + scratchBuffer[2 * vertexCount + 0] = cu + scratchBuffer[2 * vertexCount + 1] = cv + + vertexCount += 1 + } + } + + this._dynamicCounts[d] = vertexCount - this._dynamicOffsets[d] + } + + this._dynamicBuffer.update(scratchBuffer.subarray(0, 2 * vertexCount)) + pool.freeFloat(scratchBuffer) +} + +function createSurfacePlot (params) { + var gl = params.gl + + var shader = createShader(gl) + var pickShader = createPickShader(gl) + var contourShader = createContourShader(gl) + var contourPickShader = createPickContourShader(gl) + + var coordinateBuffer = createBuffer(gl) + var vao = createVAO(gl, [ + { buffer: coordinateBuffer, + size: 4, + stride: SURFACE_VERTEX_SIZE, + offset: 0 + }, + { buffer: coordinateBuffer, + size: 3, + stride: SURFACE_VERTEX_SIZE, + offset: 16 + }, + { + buffer: coordinateBuffer, + size: 3, + stride: SURFACE_VERTEX_SIZE, + offset: 28 + } + ]) + + var contourBuffer = createBuffer(gl) + var contourVAO = createVAO(gl, [ + { + buffer: contourBuffer, + size: 4, + stride: 20, + offset: 0 + }, + { + buffer: contourBuffer, + size: 1, + stride: 20, + offset: 16 + } + ]) + + var dynamicBuffer = createBuffer(gl) + var dynamicVAO = createVAO(gl, [ + { + buffer: dynamicBuffer, + size: 2, + type: gl.FLOAT + }]) + + var cmap = createTexture(gl, 1, N_COLORS, gl.RGBA, gl.UNSIGNED_BYTE) + cmap.minFilter = gl.LINEAR + cmap.magFilter = gl.LINEAR + + var surface = new SurfacePlot( + gl, + [0, 0], // shape + [[0, 0, 0], [0, 0, 0]], // bounds + shader, + pickShader, + coordinateBuffer, + vao, + cmap, + contourShader, + contourPickShader, + contourBuffer, + contourVAO, + dynamicBuffer, + dynamicVAO, + [0, 0, 0] // objectOffset + ) + + var nparams = { + levels: [[], [], []] + } + for (var id in params) { + nparams[id] = params[id] + } + nparams.colormap = nparams.colormap || 'jet' + + surface.update(nparams) + + return surface +} + +},{"./lib/shaders":144,"binary-search-bounds":31,"bit-twiddle":32,"colormap":53,"gl-buffer":78,"gl-mat4/invert":98,"gl-mat4/multiply":100,"gl-texture2d":146,"gl-vao":150,"ndarray":259,"ndarray-gradient":252,"ndarray-ops":254,"ndarray-pack":255,"surface-nets":302,"typedarray-pool":308}],146:[function(_glvis_,module,exports){ +'use strict' + +var ndarray = _glvis_('ndarray') +var ops = _glvis_('ndarray-ops') +var pool = _glvis_('typedarray-pool') + +module.exports = createTexture2D + +var linearTypes = null +var filterTypes = null +var wrapTypes = null + +function lazyInitLinearTypes(gl) { + linearTypes = [ + gl.LINEAR, + gl.NEAREST_MIPMAP_LINEAR, + gl.LINEAR_MIPMAP_NEAREST, + gl.LINEAR_MIPMAP_NEAREST + ] + filterTypes = [ + gl.NEAREST, + gl.LINEAR, + gl.NEAREST_MIPMAP_NEAREST, + gl.NEAREST_MIPMAP_LINEAR, + gl.LINEAR_MIPMAP_NEAREST, + gl.LINEAR_MIPMAP_LINEAR + ] + wrapTypes = [ + gl.REPEAT, + gl.CLAMP_TO_EDGE, + gl.MIRRORED_REPEAT + ] +} + +function acceptTextureDOM (obj) { + return ( + ('undefined' != typeof HTMLCanvasElement && obj instanceof HTMLCanvasElement) || + ('undefined' != typeof HTMLImageElement && obj instanceof HTMLImageElement) || + ('undefined' != typeof HTMLVideoElement && obj instanceof HTMLVideoElement) || + ('undefined' != typeof ImageData && obj instanceof ImageData)) +} + +var convertFloatToUint8 = function(out, inp) { + ops.muls(out, inp, 255.0) +} + +function reshapeTexture(tex, w, h) { + var gl = tex.gl + var maxSize = gl.getParameter(gl.MAX_TEXTURE_SIZE) + if(w < 0 || w > maxSize || h < 0 || h > maxSize) { + throw new Error('gl-texture2d: Invalid texture size') + } + tex._shape = [w, h] + tex.bind() + gl.texImage2D(gl.TEXTURE_2D, 0, tex.format, w, h, 0, tex.format, tex.type, null) + tex._mipLevels = [0] + return tex +} + +function Texture2D(gl, handle, width, height, format, type) { + this.gl = gl + this.handle = handle + this.format = format + this.type = type + this._shape = [width, height] + this._mipLevels = [0] + this._magFilter = gl.NEAREST + this._minFilter = gl.NEAREST + this._wrapS = gl.CLAMP_TO_EDGE + this._wrapT = gl.CLAMP_TO_EDGE + this._anisoSamples = 1 + + var parent = this + var wrapVector = [this._wrapS, this._wrapT] + Object.defineProperties(wrapVector, [ + { + get: function() { + return parent._wrapS + }, + set: function(v) { + return parent.wrapS = v + } + }, + { + get: function() { + return parent._wrapT + }, + set: function(v) { + return parent.wrapT = v + } + } + ]) + this._wrapVector = wrapVector + + var shapeVector = [this._shape[0], this._shape[1]] + Object.defineProperties(shapeVector, [ + { + get: function() { + return parent._shape[0] + }, + set: function(v) { + return parent.width = v + } + }, + { + get: function() { + return parent._shape[1] + }, + set: function(v) { + return parent.height = v + } + } + ]) + this._shapeVector = shapeVector +} + +var proto = Texture2D.prototype + +Object.defineProperties(proto, { + minFilter: { + get: function() { + return this._minFilter + }, + set: function(v) { + this.bind() + var gl = this.gl + if(this.type === gl.FLOAT && linearTypes.indexOf(v) >= 0) { + if(!gl.getExtension('OES_texture_float_linear')) { + v = gl.NEAREST + } + } + if(filterTypes.indexOf(v) < 0) { + throw new Error('gl-texture2d: Unknown filter mode ' + v) + } + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, v) + return this._minFilter = v + } + }, + magFilter: { + get: function() { + return this._magFilter + }, + set: function(v) { + this.bind() + var gl = this.gl + if(this.type === gl.FLOAT && linearTypes.indexOf(v) >= 0) { + if(!gl.getExtension('OES_texture_float_linear')) { + v = gl.NEAREST + } + } + if(filterTypes.indexOf(v) < 0) { + throw new Error('gl-texture2d: Unknown filter mode ' + v) + } + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, v) + return this._magFilter = v + } + }, + mipSamples: { + get: function() { + return this._anisoSamples + }, + set: function(i) { + var psamples = this._anisoSamples + this._anisoSamples = Math.max(i, 1)|0 + if(psamples !== this._anisoSamples) { + var ext = this.gl.getExtension('EXT_texture_filter_anisotropic') + if(ext) { + this.gl.texParameterf(this.gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, this._anisoSamples) + } + } + return this._anisoSamples + } + }, + wrapS: { + get: function() { + return this._wrapS + }, + set: function(v) { + this.bind() + if(wrapTypes.indexOf(v) < 0) { + throw new Error('gl-texture2d: Unknown wrap mode ' + v) + } + this.gl.texParameteri(this.gl.TEXTURE_2D, this.gl.TEXTURE_WRAP_S, v) + return this._wrapS = v + } + }, + wrapT: { + get: function() { + return this._wrapT + }, + set: function(v) { + this.bind() + if(wrapTypes.indexOf(v) < 0) { + throw new Error('gl-texture2d: Unknown wrap mode ' + v) + } + this.gl.texParameteri(this.gl.TEXTURE_2D, this.gl.TEXTURE_WRAP_T, v) + return this._wrapT = v + } + }, + wrap: { + get: function() { + return this._wrapVector + }, + set: function(v) { + if(!Array.isArray(v)) { + v = [v,v] + } + if(v.length !== 2) { + throw new Error('gl-texture2d: Must specify wrap mode for rows and columns') + } + for(var i=0; i<2; ++i) { + if(wrapTypes.indexOf(v[i]) < 0) { + throw new Error('gl-texture2d: Unknown wrap mode ' + v) + } + } + this._wrapS = v[0] + this._wrapT = v[1] + + var gl = this.gl + this.bind() + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, this._wrapS) + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, this._wrapT) + + return v + } + }, + shape: { + get: function() { + return this._shapeVector + }, + set: function(x) { + if(!Array.isArray(x)) { + x = [x|0,x|0] + } else { + if(x.length !== 2) { + throw new Error('gl-texture2d: Invalid texture shape') + } + } + reshapeTexture(this, x[0]|0, x[1]|0) + return [x[0]|0, x[1]|0] + } + }, + width: { + get: function() { + return this._shape[0] + }, + set: function(w) { + w = w|0 + reshapeTexture(this, w, this._shape[1]) + return w + } + }, + height: { + get: function() { + return this._shape[1] + }, + set: function(h) { + h = h|0 + reshapeTexture(this, this._shape[0], h) + return h + } + } +}) + +proto.bind = function(unit) { + var gl = this.gl + if(unit !== undefined) { + gl.activeTexture(gl.TEXTURE0 + (unit|0)) + } + gl.bindTexture(gl.TEXTURE_2D, this.handle) + if(unit !== undefined) { + return (unit|0) + } + return gl.getParameter(gl.ACTIVE_TEXTURE) - gl.TEXTURE0 +} + +proto.dispose = function() { + this.gl.deleteTexture(this.handle) +} + +proto.generateMipmap = function() { + this.bind() + this.gl.generateMipmap(this.gl.TEXTURE_2D) + + //Update mip levels + var l = Math.min(this._shape[0], this._shape[1]) + for(var i=0; l>0; ++i, l>>>=1) { + if(this._mipLevels.indexOf(i) < 0) { + this._mipLevels.push(i) + } + } +} + +proto.setPixels = function(data, x_off, y_off, mip_level) { + var gl = this.gl + this.bind() + if(Array.isArray(x_off)) { + mip_level = y_off + y_off = x_off[1]|0 + x_off = x_off[0]|0 + } else { + x_off = x_off || 0 + y_off = y_off || 0 + } + mip_level = mip_level || 0 + var directData = acceptTextureDOM(data) ? data : data.raw + if(directData) { + var needsMip = this._mipLevels.indexOf(mip_level) < 0 + if(needsMip) { + gl.texImage2D(gl.TEXTURE_2D, 0, this.format, this.format, this.type, directData) + this._mipLevels.push(mip_level) + } else { + gl.texSubImage2D(gl.TEXTURE_2D, mip_level, x_off, y_off, this.format, this.type, directData) + } + } else if(data.shape && data.stride && data.data) { + if(data.shape.length < 2 || + x_off + data.shape[1] > this._shape[1]>>>mip_level || + y_off + data.shape[0] > this._shape[0]>>>mip_level || + x_off < 0 || + y_off < 0) { + throw new Error('gl-texture2d: Texture dimensions are out of bounds') + } + texSubImageArray(gl, x_off, y_off, mip_level, this.format, this.type, this._mipLevels, data) + } else { + throw new Error('gl-texture2d: Unsupported data type') + } +} + + +function isPacked(shape, stride) { + if(shape.length === 3) { + return (stride[2] === 1) && + (stride[1] === shape[0]*shape[2]) && + (stride[0] === shape[2]) + } + return (stride[0] === 1) && + (stride[1] === shape[0]) +} + +function texSubImageArray(gl, x_off, y_off, mip_level, cformat, ctype, mipLevels, array) { + var dtype = array.dtype + var shape = array.shape.slice() + if(shape.length < 2 || shape.length > 3) { + throw new Error('gl-texture2d: Invalid ndarray, must be 2d or 3d') + } + var type = 0, format = 0 + var packed = isPacked(shape, array.stride.slice()) + if(dtype === 'float32') { + type = gl.FLOAT + } else if(dtype === 'float64') { + type = gl.FLOAT + packed = false + dtype = 'float32' + } else if(dtype === 'uint8') { + type = gl.UNSIGNED_BYTE + } else { + type = gl.UNSIGNED_BYTE + packed = false + dtype = 'uint8' + } + var channels = 1 + if(shape.length === 2) { + format = gl.LUMINANCE + shape = [shape[0], shape[1], 1] + array = ndarray(array.data, shape, [array.stride[0], array.stride[1], 1], array.offset) + } else if(shape.length === 3) { + if(shape[2] === 1) { + format = gl.ALPHA + } else if(shape[2] === 2) { + format = gl.LUMINANCE_ALPHA + } else if(shape[2] === 3) { + format = gl.RGB + } else if(shape[2] === 4) { + format = gl.RGBA + } else { + throw new Error('gl-texture2d: Invalid shape for pixel coords') + } + channels = shape[2] + } else { + throw new Error('gl-texture2d: Invalid shape for texture') + } + //For 1-channel textures allow conversion between formats + if((format === gl.LUMINANCE || format === gl.ALPHA) && + (cformat === gl.LUMINANCE || cformat === gl.ALPHA)) { + format = cformat + } + if(format !== cformat) { + throw new Error('gl-texture2d: Incompatible texture format for setPixels') + } + var size = array.size + var needsMip = mipLevels.indexOf(mip_level) < 0 + if(needsMip) { + mipLevels.push(mip_level) + } + if(type === ctype && packed) { + //Array data types are compatible, can directly copy into texture + if(array.offset === 0 && array.data.length === size) { + if(needsMip) { + gl.texImage2D(gl.TEXTURE_2D, mip_level, cformat, shape[0], shape[1], 0, cformat, ctype, array.data) + } else { + gl.texSubImage2D(gl.TEXTURE_2D, mip_level, x_off, y_off, shape[0], shape[1], cformat, ctype, array.data) + } + } else { + if(needsMip) { + gl.texImage2D(gl.TEXTURE_2D, mip_level, cformat, shape[0], shape[1], 0, cformat, ctype, array.data.subarray(array.offset, array.offset+size)) + } else { + gl.texSubImage2D(gl.TEXTURE_2D, mip_level, x_off, y_off, shape[0], shape[1], cformat, ctype, array.data.subarray(array.offset, array.offset+size)) + } + } + } else { + //Need to do type conversion to pack data into buffer + var pack_buffer + if(ctype === gl.FLOAT) { + pack_buffer = pool.mallocFloat32(size) + } else { + pack_buffer = pool.mallocUint8(size) + } + var pack_view = ndarray(pack_buffer, shape, [shape[2], shape[2]*shape[0], 1]) + if(type === gl.FLOAT && ctype === gl.UNSIGNED_BYTE) { + convertFloatToUint8(pack_view, array) + } else { + ops.assign(pack_view, array) + } + if(needsMip) { + gl.texImage2D(gl.TEXTURE_2D, mip_level, cformat, shape[0], shape[1], 0, cformat, ctype, pack_buffer.subarray(0, size)) + } else { + gl.texSubImage2D(gl.TEXTURE_2D, mip_level, x_off, y_off, shape[0], shape[1], cformat, ctype, pack_buffer.subarray(0, size)) + } + if(ctype === gl.FLOAT) { + pool.freeFloat32(pack_buffer) + } else { + pool.freeUint8(pack_buffer) + } + } +} + +function initTexture(gl) { + var tex = gl.createTexture() + gl.bindTexture(gl.TEXTURE_2D, tex) + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST) + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST) + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE) + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE) + return tex +} + +function createTextureShape(gl, width, height, format, type) { + var maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE) + if(width < 0 || width > maxTextureSize || height < 0 || height > maxTextureSize) { + throw new Error('gl-texture2d: Invalid texture shape') + } + if(type === gl.FLOAT && !gl.getExtension('OES_texture_float')) { + throw new Error('gl-texture2d: Floating point textures not supported on this platform') + } + var tex = initTexture(gl) + gl.texImage2D(gl.TEXTURE_2D, 0, format, width, height, 0, format, type, null) + return new Texture2D(gl, tex, width, height, format, type) +} + +function createTextureDOM(gl, directData, width, height, format, type) { + var tex = initTexture(gl) + gl.texImage2D(gl.TEXTURE_2D, 0, format, format, type, directData) + return new Texture2D(gl, tex, width, height, format, type) +} + +//Creates a texture from an ndarray +function createTextureArray(gl, array) { + var dtype = array.dtype + var shape = array.shape.slice() + var maxSize = gl.getParameter(gl.MAX_TEXTURE_SIZE) + if(shape[0] < 0 || shape[0] > maxSize || shape[1] < 0 || shape[1] > maxSize) { + throw new Error('gl-texture2d: Invalid texture size') + } + var packed = isPacked(shape, array.stride.slice()) + var type = 0 + if(dtype === 'float32') { + type = gl.FLOAT + } else if(dtype === 'float64') { + type = gl.FLOAT + packed = false + dtype = 'float32' + } else if(dtype === 'uint8') { + type = gl.UNSIGNED_BYTE + } else { + type = gl.UNSIGNED_BYTE + packed = false + dtype = 'uint8' + } + var format = 0 + if(shape.length === 2) { + format = gl.LUMINANCE + shape = [shape[0], shape[1], 1] + array = ndarray(array.data, shape, [array.stride[0], array.stride[1], 1], array.offset) + } else if(shape.length === 3) { + if(shape[2] === 1) { + format = gl.ALPHA + } else if(shape[2] === 2) { + format = gl.LUMINANCE_ALPHA + } else if(shape[2] === 3) { + format = gl.RGB + } else if(shape[2] === 4) { + format = gl.RGBA + } else { + throw new Error('gl-texture2d: Invalid shape for pixel coords') + } + } else { + throw new Error('gl-texture2d: Invalid shape for texture') + } + if(type === gl.FLOAT && !gl.getExtension('OES_texture_float')) { + type = gl.UNSIGNED_BYTE + packed = false + } + var buffer, buf_store + var size = array.size + if(!packed) { + var stride = [shape[2], shape[2]*shape[0], 1] + buf_store = pool.malloc(size, dtype) + var buf_array = ndarray(buf_store, shape, stride, 0) + if((dtype === 'float32' || dtype === 'float64') && type === gl.UNSIGNED_BYTE) { + convertFloatToUint8(buf_array, array) + } else { + ops.assign(buf_array, array) + } + buffer = buf_store.subarray(0, size) + } else if (array.offset === 0 && array.data.length === size) { + buffer = array.data + } else { + buffer = array.data.subarray(array.offset, array.offset + size) + } + var tex = initTexture(gl) + gl.texImage2D(gl.TEXTURE_2D, 0, format, shape[0], shape[1], 0, format, type, buffer) + if(!packed) { + pool.free(buf_store) + } + return new Texture2D(gl, tex, shape[0], shape[1], format, type) +} + +function createTexture2D(gl) { + if(arguments.length <= 1) { + throw new Error('gl-texture2d: Missing arguments for texture2d constructor') + } + if(!linearTypes) { + lazyInitLinearTypes(gl) + } + if(typeof arguments[1] === 'number') { + return createTextureShape(gl, arguments[1], arguments[2], arguments[3]||gl.RGBA, arguments[4]||gl.UNSIGNED_BYTE) + } + if(Array.isArray(arguments[1])) { + return createTextureShape(gl, arguments[1][0]|0, arguments[1][1]|0, arguments[2]||gl.RGBA, arguments[3]||gl.UNSIGNED_BYTE) + } + if(typeof arguments[1] === 'object') { + var obj = arguments[1] + var directData = acceptTextureDOM(obj) ? obj : obj.raw + if (directData) { + return createTextureDOM(gl, directData, obj.width|0, obj.height|0, arguments[2]||gl.RGBA, arguments[3]||gl.UNSIGNED_BYTE) + } else if(obj.shape && obj.data && obj.stride) { + return createTextureArray(gl, obj) + } + } + throw new Error('gl-texture2d: Invalid arguments for texture2d constructor') +} + +},{"ndarray":259,"ndarray-ops":254,"typedarray-pool":308}],147:[function(_glvis_,module,exports){ +"use strict" + +function doBind(gl, elements, attributes) { + if(elements) { + elements.bind() + } else { + gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null) + } + var nattribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS)|0 + if(attributes) { + if(attributes.length > nattribs) { + throw new Error("gl-vao: Too many vertex attributes") + } + for(var i=0; i 1.0){ + return 0 + } else { + return Math.acos(cosine) + } +} + +},{"./dot":162,"./fromValues":168,"./normalize":179}],153:[function(_glvis_,module,exports){ +module.exports = ceil + +/** + * Math.ceil the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to ceil + * @returns {vec3} out + */ +function ceil(out, a) { + out[0] = Math.ceil(a[0]) + out[1] = Math.ceil(a[1]) + out[2] = Math.ceil(a[2]) + return out +} + +},{}],154:[function(_glvis_,module,exports){ +module.exports = clone; + +/** + * Creates a new vec3 initialized with values from an existing vector + * + * @param {vec3} a vector to clone + * @returns {vec3} a new 3D vector + */ +function clone(a) { + var out = new Float32Array(3) + out[0] = a[0] + out[1] = a[1] + out[2] = a[2] + return out +} +},{}],155:[function(_glvis_,module,exports){ +module.exports = copy; + +/** + * Copy the values from one vec3 to another + * + * @param {vec3} out the receiving vector + * @param {vec3} a the source vector + * @returns {vec3} out + */ +function copy(out, a) { + out[0] = a[0] + out[1] = a[1] + out[2] = a[2] + return out +} +},{}],156:[function(_glvis_,module,exports){ +module.exports = create; + +/** + * Creates a new, empty vec3 + * + * @returns {vec3} a new 3D vector + */ +function create() { + var out = new Float32Array(3) + out[0] = 0 + out[1] = 0 + out[2] = 0 + return out +} +},{}],157:[function(_glvis_,module,exports){ +module.exports = cross; + +/** + * Computes the cross product of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function cross(out, a, b) { + var ax = a[0], ay = a[1], az = a[2], + bx = b[0], by = b[1], bz = b[2] + + out[0] = ay * bz - az * by + out[1] = az * bx - ax * bz + out[2] = ax * by - ay * bx + return out +} +},{}],158:[function(_glvis_,module,exports){ +module.exports = _glvis_('./distance') + +},{"./distance":159}],159:[function(_glvis_,module,exports){ +module.exports = distance; + +/** + * Calculates the euclidian distance between two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} distance between a and b + */ +function distance(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2] + return Math.sqrt(x*x + y*y + z*z) +} +},{}],160:[function(_glvis_,module,exports){ +module.exports = _glvis_('./divide') + +},{"./divide":161}],161:[function(_glvis_,module,exports){ +module.exports = divide; + +/** + * Divides two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function divide(out, a, b) { + out[0] = a[0] / b[0] + out[1] = a[1] / b[1] + out[2] = a[2] / b[2] + return out +} +},{}],162:[function(_glvis_,module,exports){ +module.exports = dot; + +/** + * Calculates the dot product of two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} dot product of a and b + */ +function dot(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] +} +},{}],163:[function(_glvis_,module,exports){ +module.exports = 0.000001 + +},{}],164:[function(_glvis_,module,exports){ +module.exports = equals + +var EPSILON = _glvis_('./epsilon') + +/** + * Returns whether or not the vectors have approximately the same elements in the same position. + * + * @param {vec3} a The first vector. + * @param {vec3} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function equals(a, b) { + var a0 = a[0] + var a1 = a[1] + var a2 = a[2] + var b0 = b[0] + var b1 = b[1] + var b2 = b[2] + return (Math.abs(a0 - b0) <= EPSILON * Math.max(1.0, Math.abs(a0), Math.abs(b0)) && + Math.abs(a1 - b1) <= EPSILON * Math.max(1.0, Math.abs(a1), Math.abs(b1)) && + Math.abs(a2 - b2) <= EPSILON * Math.max(1.0, Math.abs(a2), Math.abs(b2))) +} + +},{"./epsilon":163}],165:[function(_glvis_,module,exports){ +module.exports = exactEquals + +/** + * Returns whether or not the vectors exactly have the same elements in the same position (when compared with ===) + * + * @param {vec3} a The first vector. + * @param {vec3} b The second vector. + * @returns {Boolean} True if the vectors are equal, false otherwise. + */ +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] +} + +},{}],166:[function(_glvis_,module,exports){ +module.exports = floor + +/** + * Math.floor the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to floor + * @returns {vec3} out + */ +function floor(out, a) { + out[0] = Math.floor(a[0]) + out[1] = Math.floor(a[1]) + out[2] = Math.floor(a[2]) + return out +} + +},{}],167:[function(_glvis_,module,exports){ +module.exports = forEach; + +var vec = _glvis_('./create')() + +/** + * Perform some operation over an array of vec3s. + * + * @param {Array} a the array of vectors to iterate over + * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed + * @param {Number} offset Number of elements to skip at the beginning of the array + * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array + * @param {Function} fn Function to call for each vector in the array + * @param {Object} [arg] additional argument to pass to fn + * @returns {Array} a + * @function + */ +function forEach(a, stride, offset, count, fn, arg) { + var i, l + if(!stride) { + stride = 3 + } + + if(!offset) { + offset = 0 + } + + if(count) { + l = Math.min((count * stride) + offset, a.length) + } else { + l = a.length + } + + for(i = offset; i < l; i += stride) { + vec[0] = a[i] + vec[1] = a[i+1] + vec[2] = a[i+2] + fn(vec, vec, arg) + a[i] = vec[0] + a[i+1] = vec[1] + a[i+2] = vec[2] + } + + return a +} +},{"./create":156}],168:[function(_glvis_,module,exports){ +module.exports = fromValues; + +/** + * Creates a new vec3 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @returns {vec3} a new 3D vector + */ +function fromValues(x, y, z) { + var out = new Float32Array(3) + out[0] = x + out[1] = y + out[2] = z + return out +} +},{}],169:[function(_glvis_,module,exports){ +module.exports = { + EPSILON: _glvis_('./epsilon') + , create: _glvis_('./create') + , clone: _glvis_('./clone') + , angle: _glvis_('./angle') + , fromValues: _glvis_('./fromValues') + , copy: _glvis_('./copy') + , set: _glvis_('./set') + , equals: _glvis_('./equals') + , exactEquals: _glvis_('./exactEquals') + , add: _glvis_('./add') + , subtract: _glvis_('./subtract') + , sub: _glvis_('./sub') + , multiply: _glvis_('./multiply') + , mul: _glvis_('./mul') + , divide: _glvis_('./divide') + , div: _glvis_('./div') + , min: _glvis_('./min') + , max: _glvis_('./max') + , floor: _glvis_('./floor') + , ceil: _glvis_('./ceil') + , round: _glvis_('./round') + , scale: _glvis_('./scale') + , scaleAndAdd: _glvis_('./scaleAndAdd') + , distance: _glvis_('./distance') + , dist: _glvis_('./dist') + , squaredDistance: _glvis_('./squaredDistance') + , sqrDist: _glvis_('./sqrDist') + , length: _glvis_('./length') + , len: _glvis_('./len') + , squaredLength: _glvis_('./squaredLength') + , sqrLen: _glvis_('./sqrLen') + , negate: _glvis_('./negate') + , inverse: _glvis_('./inverse') + , normalize: _glvis_('./normalize') + , dot: _glvis_('./dot') + , cross: _glvis_('./cross') + , lerp: _glvis_('./lerp') + , random: _glvis_('./random') + , transformMat4: _glvis_('./transformMat4') + , transformMat3: _glvis_('./transformMat3') + , transformQuat: _glvis_('./transformQuat') + , rotateX: _glvis_('./rotateX') + , rotateY: _glvis_('./rotateY') + , rotateZ: _glvis_('./rotateZ') + , forEach: _glvis_('./forEach') +} + +},{"./add":151,"./angle":152,"./ceil":153,"./clone":154,"./copy":155,"./create":156,"./cross":157,"./dist":158,"./distance":159,"./div":160,"./divide":161,"./dot":162,"./epsilon":163,"./equals":164,"./exactEquals":165,"./floor":166,"./forEach":167,"./fromValues":168,"./inverse":170,"./len":171,"./length":172,"./lerp":173,"./max":174,"./min":175,"./mul":176,"./multiply":177,"./negate":178,"./normalize":179,"./random":180,"./rotateX":181,"./rotateY":182,"./rotateZ":183,"./round":184,"./scale":185,"./scaleAndAdd":186,"./set":187,"./sqrDist":188,"./sqrLen":189,"./squaredDistance":190,"./squaredLength":191,"./sub":192,"./subtract":193,"./transformMat3":194,"./transformMat4":195,"./transformQuat":196}],170:[function(_glvis_,module,exports){ +module.exports = inverse; + +/** + * Returns the inverse of the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to invert + * @returns {vec3} out + */ +function inverse(out, a) { + out[0] = 1.0 / a[0] + out[1] = 1.0 / a[1] + out[2] = 1.0 / a[2] + return out +} +},{}],171:[function(_glvis_,module,exports){ +module.exports = _glvis_('./length') + +},{"./length":172}],172:[function(_glvis_,module,exports){ +module.exports = length; + +/** + * Calculates the length of a vec3 + * + * @param {vec3} a vector to calculate length of + * @returns {Number} length of a + */ +function length(a) { + var x = a[0], + y = a[1], + z = a[2] + return Math.sqrt(x*x + y*y + z*z) +} +},{}],173:[function(_glvis_,module,exports){ +module.exports = lerp; + +/** + * Performs a linear interpolation between two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ +function lerp(out, a, b, t) { + var ax = a[0], + ay = a[1], + az = a[2] + out[0] = ax + t * (b[0] - ax) + out[1] = ay + t * (b[1] - ay) + out[2] = az + t * (b[2] - az) + return out +} +},{}],174:[function(_glvis_,module,exports){ +module.exports = max; + +/** + * Returns the maximum of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function max(out, a, b) { + out[0] = Math.max(a[0], b[0]) + out[1] = Math.max(a[1], b[1]) + out[2] = Math.max(a[2], b[2]) + return out +} +},{}],175:[function(_glvis_,module,exports){ +module.exports = min; + +/** + * Returns the minimum of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function min(out, a, b) { + out[0] = Math.min(a[0], b[0]) + out[1] = Math.min(a[1], b[1]) + out[2] = Math.min(a[2], b[2]) + return out +} +},{}],176:[function(_glvis_,module,exports){ +module.exports = _glvis_('./multiply') + +},{"./multiply":177}],177:[function(_glvis_,module,exports){ +module.exports = multiply; + +/** + * Multiplies two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function multiply(out, a, b) { + out[0] = a[0] * b[0] + out[1] = a[1] * b[1] + out[2] = a[2] * b[2] + return out +} +},{}],178:[function(_glvis_,module,exports){ +module.exports = negate; + +/** + * Negates the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to negate + * @returns {vec3} out + */ +function negate(out, a) { + out[0] = -a[0] + out[1] = -a[1] + out[2] = -a[2] + return out +} +},{}],179:[function(_glvis_,module,exports){ +module.exports = normalize; + +/** + * Normalize a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to normalize + * @returns {vec3} out + */ +function normalize(out, a) { + var x = a[0], + y = a[1], + z = a[2] + var len = x*x + y*y + z*z + if (len > 0) { + //TODO: evaluate use of glm_invsqrt here? + len = 1 / Math.sqrt(len) + out[0] = a[0] * len + out[1] = a[1] * len + out[2] = a[2] * len + } + return out +} +},{}],180:[function(_glvis_,module,exports){ +module.exports = random; + +/** + * Generates a random vector with the given scale + * + * @param {vec3} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec3} out + */ +function random(out, scale) { + scale = scale || 1.0 + + var r = Math.random() * 2.0 * Math.PI + var z = (Math.random() * 2.0) - 1.0 + var zScale = Math.sqrt(1.0-z*z) * scale + + out[0] = Math.cos(r) * zScale + out[1] = Math.sin(r) * zScale + out[2] = z * scale + return out +} +},{}],181:[function(_glvis_,module,exports){ +module.exports = rotateX; + +/** + * Rotate a 3D vector around the x-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ +function rotateX(out, a, b, c){ + var by = b[1] + var bz = b[2] + + // Translate point to the origin + var py = a[1] - by + var pz = a[2] - bz + + var sc = Math.sin(c) + var cc = Math.cos(c) + + // perform rotation and translate to correct position + out[0] = a[0] + out[1] = by + py * cc - pz * sc + out[2] = bz + py * sc + pz * cc + + return out +} + +},{}],182:[function(_glvis_,module,exports){ +module.exports = rotateY; + +/** + * Rotate a 3D vector around the y-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ +function rotateY(out, a, b, c){ + var bx = b[0] + var bz = b[2] + + // translate point to the origin + var px = a[0] - bx + var pz = a[2] - bz + + var sc = Math.sin(c) + var cc = Math.cos(c) + + // perform rotation and translate to correct position + out[0] = bx + pz * sc + px * cc + out[1] = a[1] + out[2] = bz + pz * cc - px * sc + + return out +} + +},{}],183:[function(_glvis_,module,exports){ +module.exports = rotateZ; + +/** + * Rotate a 3D vector around the z-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ +function rotateZ(out, a, b, c){ + var bx = b[0] + var by = b[1] + + //Translate point to the origin + var px = a[0] - bx + var py = a[1] - by + + var sc = Math.sin(c) + var cc = Math.cos(c) + + // perform rotation and translate to correct position + out[0] = bx + px * cc - py * sc + out[1] = by + px * sc + py * cc + out[2] = a[2] + + return out +} + +},{}],184:[function(_glvis_,module,exports){ +module.exports = round + +/** + * Math.round the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to round + * @returns {vec3} out + */ +function round(out, a) { + out[0] = Math.round(a[0]) + out[1] = Math.round(a[1]) + out[2] = Math.round(a[2]) + return out +} + +},{}],185:[function(_glvis_,module,exports){ +module.exports = scale; + +/** + * Scales a vec3 by a scalar number + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec3} out + */ +function scale(out, a, b) { + out[0] = a[0] * b + out[1] = a[1] * b + out[2] = a[2] * b + return out +} +},{}],186:[function(_glvis_,module,exports){ +module.exports = scaleAndAdd; + +/** + * Adds two vec3's after scaling the second operand by a scalar value + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec3} out + */ +function scaleAndAdd(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale) + out[1] = a[1] + (b[1] * scale) + out[2] = a[2] + (b[2] * scale) + return out +} +},{}],187:[function(_glvis_,module,exports){ +module.exports = set; + +/** + * Set the components of a vec3 to the given values + * + * @param {vec3} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @returns {vec3} out + */ +function set(out, x, y, z) { + out[0] = x + out[1] = y + out[2] = z + return out +} +},{}],188:[function(_glvis_,module,exports){ +module.exports = _glvis_('./squaredDistance') + +},{"./squaredDistance":190}],189:[function(_glvis_,module,exports){ +module.exports = _glvis_('./squaredLength') + +},{"./squaredLength":191}],190:[function(_glvis_,module,exports){ +module.exports = squaredDistance; + +/** + * Calculates the squared euclidian distance between two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} squared distance between a and b + */ +function squaredDistance(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2] + return x*x + y*y + z*z +} +},{}],191:[function(_glvis_,module,exports){ +module.exports = squaredLength; + +/** + * Calculates the squared length of a vec3 + * + * @param {vec3} a vector to calculate squared length of + * @returns {Number} squared length of a + */ +function squaredLength(a) { + var x = a[0], + y = a[1], + z = a[2] + return x*x + y*y + z*z +} +},{}],192:[function(_glvis_,module,exports){ +module.exports = _glvis_('./subtract') + +},{"./subtract":193}],193:[function(_glvis_,module,exports){ +module.exports = subtract; + +/** + * Subtracts vector b from vector a + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ +function subtract(out, a, b) { + out[0] = a[0] - b[0] + out[1] = a[1] - b[1] + out[2] = a[2] - b[2] + return out +} +},{}],194:[function(_glvis_,module,exports){ +module.exports = transformMat3; + +/** + * Transforms the vec3 with a mat3. + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {mat4} m the 3x3 matrix to transform with + * @returns {vec3} out + */ +function transformMat3(out, a, m) { + var x = a[0], y = a[1], z = a[2] + out[0] = x * m[0] + y * m[3] + z * m[6] + out[1] = x * m[1] + y * m[4] + z * m[7] + out[2] = x * m[2] + y * m[5] + z * m[8] + return out +} +},{}],195:[function(_glvis_,module,exports){ +module.exports = transformMat4; + +/** + * Transforms the vec3 with a mat4. + * 4th vector component is implicitly '1' + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec3} out + */ +function transformMat4(out, a, m) { + var x = a[0], y = a[1], z = a[2], + w = m[3] * x + m[7] * y + m[11] * z + m[15] + w = w || 1.0 + out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w + out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w + out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w + return out +} +},{}],196:[function(_glvis_,module,exports){ +module.exports = transformQuat; + +/** + * Transforms the vec3 with a quat + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {quat} q quaternion to transform with + * @returns {vec3} out + */ +function transformQuat(out, a, q) { + // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations + + var x = a[0], y = a[1], z = a[2], + qx = q[0], qy = q[1], qz = q[2], qw = q[3], + + // calculate quat * vec + ix = qw * x + qy * z - qz * y, + iy = qw * y + qz * x - qx * z, + iz = qw * z + qx * y - qy * x, + iw = -qx * x - qy * y - qz * z + + // calculate result * inverse quat + out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy + out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz + out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx + return out +} +},{}],197:[function(_glvis_,module,exports){ +module.exports = add + +/** + * Adds two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function add (out, a, b) { + out[0] = a[0] + b[0] + out[1] = a[1] + b[1] + out[2] = a[2] + b[2] + out[3] = a[3] + b[3] + return out +} + +},{}],198:[function(_glvis_,module,exports){ +module.exports = clone + +/** + * Creates a new vec4 initialized with values from an existing vector + * + * @param {vec4} a vector to clone + * @returns {vec4} a new 4D vector + */ +function clone (a) { + var out = new Float32Array(4) + out[0] = a[0] + out[1] = a[1] + out[2] = a[2] + out[3] = a[3] + return out +} + +},{}],199:[function(_glvis_,module,exports){ +module.exports = copy + +/** + * Copy the values from one vec4 to another + * + * @param {vec4} out the receiving vector + * @param {vec4} a the source vector + * @returns {vec4} out + */ +function copy (out, a) { + out[0] = a[0] + out[1] = a[1] + out[2] = a[2] + out[3] = a[3] + return out +} + +},{}],200:[function(_glvis_,module,exports){ +module.exports = create + +/** + * Creates a new, empty vec4 + * + * @returns {vec4} a new 4D vector + */ +function create () { + var out = new Float32Array(4) + out[0] = 0 + out[1] = 0 + out[2] = 0 + out[3] = 0 + return out +} + +},{}],201:[function(_glvis_,module,exports){ +module.exports = distance + +/** + * Calculates the euclidian distance between two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} distance between a and b + */ +function distance (a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2], + w = b[3] - a[3] + return Math.sqrt(x * x + y * y + z * z + w * w) +} + +},{}],202:[function(_glvis_,module,exports){ +module.exports = divide + +/** + * Divides two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function divide (out, a, b) { + out[0] = a[0] / b[0] + out[1] = a[1] / b[1] + out[2] = a[2] / b[2] + out[3] = a[3] / b[3] + return out +} + +},{}],203:[function(_glvis_,module,exports){ +module.exports = dot + +/** + * Calculates the dot product of two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} dot product of a and b + */ +function dot (a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3] +} + +},{}],204:[function(_glvis_,module,exports){ +module.exports = fromValues + +/** + * Creates a new vec4 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {vec4} a new 4D vector + */ +function fromValues (x, y, z, w) { + var out = new Float32Array(4) + out[0] = x + out[1] = y + out[2] = z + out[3] = w + return out +} + +},{}],205:[function(_glvis_,module,exports){ +module.exports = { + create: _glvis_('./create'), + clone: _glvis_('./clone'), + fromValues: _glvis_('./fromValues'), + copy: _glvis_('./copy'), + set: _glvis_('./set'), + add: _glvis_('./add'), + subtract: _glvis_('./subtract'), + multiply: _glvis_('./multiply'), + divide: _glvis_('./divide'), + min: _glvis_('./min'), + max: _glvis_('./max'), + scale: _glvis_('./scale'), + scaleAndAdd: _glvis_('./scaleAndAdd'), + distance: _glvis_('./distance'), + squaredDistance: _glvis_('./squaredDistance'), + length: _glvis_('./length'), + squaredLength: _glvis_('./squaredLength'), + negate: _glvis_('./negate'), + inverse: _glvis_('./inverse'), + normalize: _glvis_('./normalize'), + dot: _glvis_('./dot'), + lerp: _glvis_('./lerp'), + random: _glvis_('./random'), + transformMat4: _glvis_('./transformMat4'), + transformQuat: _glvis_('./transformQuat') +} + +},{"./add":197,"./clone":198,"./copy":199,"./create":200,"./distance":201,"./divide":202,"./dot":203,"./fromValues":204,"./inverse":206,"./length":207,"./lerp":208,"./max":209,"./min":210,"./multiply":211,"./negate":212,"./normalize":213,"./random":214,"./scale":215,"./scaleAndAdd":216,"./set":217,"./squaredDistance":218,"./squaredLength":219,"./subtract":220,"./transformMat4":221,"./transformQuat":222}],206:[function(_glvis_,module,exports){ +module.exports = inverse + +/** + * Returns the inverse of the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to invert + * @returns {vec4} out + */ +function inverse (out, a) { + out[0] = 1.0 / a[0] + out[1] = 1.0 / a[1] + out[2] = 1.0 / a[2] + out[3] = 1.0 / a[3] + return out +} + +},{}],207:[function(_glvis_,module,exports){ +module.exports = length + +/** + * Calculates the length of a vec4 + * + * @param {vec4} a vector to calculate length of + * @returns {Number} length of a + */ +function length (a) { + var x = a[0], + y = a[1], + z = a[2], + w = a[3] + return Math.sqrt(x * x + y * y + z * z + w * w) +} + +},{}],208:[function(_glvis_,module,exports){ +module.exports = lerp + +/** + * Performs a linear interpolation between two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec4} out + */ +function lerp (out, a, b, t) { + var ax = a[0], + ay = a[1], + az = a[2], + aw = a[3] + out[0] = ax + t * (b[0] - ax) + out[1] = ay + t * (b[1] - ay) + out[2] = az + t * (b[2] - az) + out[3] = aw + t * (b[3] - aw) + return out +} + +},{}],209:[function(_glvis_,module,exports){ +module.exports = max + +/** + * Returns the maximum of two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function max (out, a, b) { + out[0] = Math.max(a[0], b[0]) + out[1] = Math.max(a[1], b[1]) + out[2] = Math.max(a[2], b[2]) + out[3] = Math.max(a[3], b[3]) + return out +} + +},{}],210:[function(_glvis_,module,exports){ +module.exports = min + +/** + * Returns the minimum of two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function min (out, a, b) { + out[0] = Math.min(a[0], b[0]) + out[1] = Math.min(a[1], b[1]) + out[2] = Math.min(a[2], b[2]) + out[3] = Math.min(a[3], b[3]) + return out +} + +},{}],211:[function(_glvis_,module,exports){ +module.exports = multiply + +/** + * Multiplies two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function multiply (out, a, b) { + out[0] = a[0] * b[0] + out[1] = a[1] * b[1] + out[2] = a[2] * b[2] + out[3] = a[3] * b[3] + return out +} + +},{}],212:[function(_glvis_,module,exports){ +module.exports = negate + +/** + * Negates the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to negate + * @returns {vec4} out + */ +function negate (out, a) { + out[0] = -a[0] + out[1] = -a[1] + out[2] = -a[2] + out[3] = -a[3] + return out +} + +},{}],213:[function(_glvis_,module,exports){ +module.exports = normalize + +/** + * Normalize a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to normalize + * @returns {vec4} out + */ +function normalize (out, a) { + var x = a[0], + y = a[1], + z = a[2], + w = a[3] + var len = x * x + y * y + z * z + w * w + if (len > 0) { + len = 1 / Math.sqrt(len) + out[0] = x * len + out[1] = y * len + out[2] = z * len + out[3] = w * len + } + return out +} + +},{}],214:[function(_glvis_,module,exports){ +var vecNormalize = _glvis_('./normalize') +var vecScale = _glvis_('./scale') + +module.exports = random + +/** + * Generates a random vector with the given scale + * + * @param {vec4} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec4} out + */ +function random (out, scale) { + scale = scale || 1.0 + + // TODO: This is a pretty awful way of doing this. Find something better. + out[0] = Math.random() + out[1] = Math.random() + out[2] = Math.random() + out[3] = Math.random() + vecNormalize(out, out) + vecScale(out, out, scale) + return out +} + +},{"./normalize":213,"./scale":215}],215:[function(_glvis_,module,exports){ +module.exports = scale + +/** + * Scales a vec4 by a scalar number + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec4} out + */ +function scale (out, a, b) { + out[0] = a[0] * b + out[1] = a[1] * b + out[2] = a[2] * b + out[3] = a[3] * b + return out +} + +},{}],216:[function(_glvis_,module,exports){ +module.exports = scaleAndAdd + +/** + * Adds two vec4's after scaling the second operand by a scalar value + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec4} out + */ +function scaleAndAdd (out, a, b, scale) { + out[0] = a[0] + (b[0] * scale) + out[1] = a[1] + (b[1] * scale) + out[2] = a[2] + (b[2] * scale) + out[3] = a[3] + (b[3] * scale) + return out +} + +},{}],217:[function(_glvis_,module,exports){ +module.exports = set + +/** + * Set the components of a vec4 to the given values + * + * @param {vec4} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {vec4} out + */ +function set (out, x, y, z, w) { + out[0] = x + out[1] = y + out[2] = z + out[3] = w + return out +} + +},{}],218:[function(_glvis_,module,exports){ +module.exports = squaredDistance + +/** + * Calculates the squared euclidian distance between two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} squared distance between a and b + */ +function squaredDistance (a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2], + w = b[3] - a[3] + return x * x + y * y + z * z + w * w +} + +},{}],219:[function(_glvis_,module,exports){ +module.exports = squaredLength + +/** + * Calculates the squared length of a vec4 + * + * @param {vec4} a vector to calculate squared length of + * @returns {Number} squared length of a + */ +function squaredLength (a) { + var x = a[0], + y = a[1], + z = a[2], + w = a[3] + return x * x + y * y + z * z + w * w +} + +},{}],220:[function(_glvis_,module,exports){ +module.exports = subtract + +/** + * Subtracts vector b from vector a + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ +function subtract (out, a, b) { + out[0] = a[0] - b[0] + out[1] = a[1] - b[1] + out[2] = a[2] - b[2] + out[3] = a[3] - b[3] + return out +} + +},{}],221:[function(_glvis_,module,exports){ +module.exports = transformMat4 + +/** + * Transforms the vec4 with a mat4. + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec4} out + */ +function transformMat4 (out, a, m) { + var x = a[0], y = a[1], z = a[2], w = a[3] + out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w + out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w + out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w + out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w + return out +} + +},{}],222:[function(_glvis_,module,exports){ +module.exports = transformQuat + +/** + * Transforms the vec4 with a quat + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to transform + * @param {quat} q quaternion to transform with + * @returns {vec4} out + */ +function transformQuat (out, a, q) { + var x = a[0], y = a[1], z = a[2], + qx = q[0], qy = q[1], qz = q[2], qw = q[3], + + // calculate quat * vec + ix = qw * x + qy * z - qz * y, + iy = qw * y + qz * x - qx * z, + iz = qw * z + qx * y - qy * x, + iw = -qx * x - qy * y - qz * z + + // calculate result * inverse quat + out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy + out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz + out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx + out[3] = a[3] + return out +} + +},{}],223:[function(_glvis_,module,exports){ +var tokenize = _glvis_('glsl-tokenizer') +var atob = _glvis_('atob-lite') + +module.exports = getName + +function getName(src) { + var tokens = Array.isArray(src) + ? src + : tokenize(src) + + for (var i = 0; i < tokens.length; i++) { + var token = tokens[i] + if (token.type !== 'preprocessor') continue + var match = token.data.match(/\#define\s+SHADER_NAME(_B64)?\s+(.+)$/) + if (!match) continue + if (!match[2]) continue + + var b64 = match[1] + var name = match[2] + + return (b64 ? atob(name) : name).trim() + } +} + +},{"atob-lite":13,"glsl-tokenizer":230}],224:[function(_glvis_,module,exports){ +module.exports = tokenize + +var literals100 = _glvis_('./lib/literals') + , operators = _glvis_('./lib/operators') + , builtins100 = _glvis_('./lib/builtins') + , literals300es = _glvis_('./lib/literals-300es') + , builtins300es = _glvis_('./lib/builtins-300es') + +var NORMAL = 999 // <-- never emitted + , TOKEN = 9999 // <-- never emitted + , BLOCK_COMMENT = 0 + , LINE_COMMENT = 1 + , PREPROCESSOR = 2 + , OPERATOR = 3 + , INTEGER = 4 + , FLOAT = 5 + , IDENT = 6 + , BUILTIN = 7 + , KEYWORD = 8 + , WHITESPACE = 9 + , EOF = 10 + , HEX = 11 + +var map = [ + 'block-comment' + , 'line-comment' + , 'preprocessor' + , 'operator' + , 'integer' + , 'float' + , 'ident' + , 'builtin' + , 'keyword' + , 'whitespace' + , 'eof' + , 'integer' +] + +function tokenize(opt) { + var i = 0 + , total = 0 + , mode = NORMAL + , c + , last + , content = [] + , tokens = [] + , token_idx = 0 + , token_offs = 0 + , line = 1 + , col = 0 + , start = 0 + , isnum = false + , isoperator = false + , input = '' + , len + + opt = opt || {} + var allBuiltins = builtins100 + var allLiterals = literals100 + if (opt.version === '300 es') { + allBuiltins = builtins300es + allLiterals = literals300es + } + + // cache by name + var builtinsDict = {}, literalsDict = {} + for (var i = 0; i < allBuiltins.length; i++) { + builtinsDict[allBuiltins[i]] = true + } + for (var i = 0; i < allLiterals.length; i++) { + literalsDict[allLiterals[i]] = true + } + + return function(data) { + tokens = [] + if (data !== null) return write(data) + return end() + } + + function token(data) { + if (data.length) { + tokens.push({ + type: map[mode] + , data: data + , position: start + , line: line + , column: col + }) + } + } + + function write(chunk) { + i = 0 + + if (chunk.toString) chunk = chunk.toString() + + input += chunk.replace(/\r\n/g, '\n') + len = input.length + + + var last + + while(c = input[i], i < len) { + last = i + + switch(mode) { + case BLOCK_COMMENT: i = block_comment(); break + case LINE_COMMENT: i = line_comment(); break + case PREPROCESSOR: i = preprocessor(); break + case OPERATOR: i = operator(); break + case INTEGER: i = integer(); break + case HEX: i = hex(); break + case FLOAT: i = decimal(); break + case TOKEN: i = readtoken(); break + case WHITESPACE: i = whitespace(); break + case NORMAL: i = normal(); break + } + + if(last !== i) { + switch(input[last]) { + case '\n': col = 0; ++line; break + default: ++col; break + } + } + } + + total += i + input = input.slice(i) + return tokens + } + + function end(chunk) { + if(content.length) { + token(content.join('')) + } + + mode = EOF + token('(eof)') + return tokens + } + + function normal() { + content = content.length ? [] : content + + if(last === '/' && c === '*') { + start = total + i - 1 + mode = BLOCK_COMMENT + last = c + return i + 1 + } + + if(last === '/' && c === '/') { + start = total + i - 1 + mode = LINE_COMMENT + last = c + return i + 1 + } + + if(c === '#') { + mode = PREPROCESSOR + start = total + i + return i + } + + if(/\s/.test(c)) { + mode = WHITESPACE + start = total + i + return i + } + + isnum = /\d/.test(c) + isoperator = /[^\w_]/.test(c) + + start = total + i + mode = isnum ? INTEGER : isoperator ? OPERATOR : TOKEN + return i + } + + function whitespace() { + if(/[^\s]/g.test(c)) { + token(content.join('')) + mode = NORMAL + return i + } + content.push(c) + last = c + return i + 1 + } + + function preprocessor() { + if((c === '\r' || c === '\n') && last !== '\\') { + token(content.join('')) + mode = NORMAL + return i + } + content.push(c) + last = c + return i + 1 + } + + function line_comment() { + return preprocessor() + } + + function block_comment() { + if(c === '/' && last === '*') { + content.push(c) + token(content.join('')) + mode = NORMAL + return i + 1 + } + + content.push(c) + last = c + return i + 1 + } + + function operator() { + if(last === '.' && /\d/.test(c)) { + mode = FLOAT + return i + } + + if(last === '/' && c === '*') { + mode = BLOCK_COMMENT + return i + } + + if(last === '/' && c === '/') { + mode = LINE_COMMENT + return i + } + + if(c === '.' && content.length) { + while(determine_operator(content)); + + mode = FLOAT + return i + } + + if(c === ';' || c === ')' || c === '(') { + if(content.length) while(determine_operator(content)); + token(c) + mode = NORMAL + return i + 1 + } + + var is_composite_operator = content.length === 2 && c !== '=' + if(/[\w_\d\s]/.test(c) || is_composite_operator) { + while(determine_operator(content)); + mode = NORMAL + return i + } + + content.push(c) + last = c + return i + 1 + } + + function determine_operator(buf) { + var j = 0 + , idx + , res + + do { + idx = operators.indexOf(buf.slice(0, buf.length + j).join('')) + res = operators[idx] + + if(idx === -1) { + if(j-- + buf.length > 0) continue + res = buf.slice(0, 1).join('') + } + + token(res) + + start += res.length + content = content.slice(res.length) + return content.length + } while(1) + } + + function hex() { + if(/[^a-fA-F0-9]/.test(c)) { + token(content.join('')) + mode = NORMAL + return i + } + + content.push(c) + last = c + return i + 1 + } + + function integer() { + if(c === '.') { + content.push(c) + mode = FLOAT + last = c + return i + 1 + } + + if(/[eE]/.test(c)) { + content.push(c) + mode = FLOAT + last = c + return i + 1 + } + + if(c === 'x' && content.length === 1 && content[0] === '0') { + mode = HEX + content.push(c) + last = c + return i + 1 + } + + if(/[^\d]/.test(c)) { + token(content.join('')) + mode = NORMAL + return i + } + + content.push(c) + last = c + return i + 1 + } + + function decimal() { + if(c === 'f') { + content.push(c) + last = c + i += 1 + } + + if(/[eE]/.test(c)) { + content.push(c) + last = c + return i + 1 + } + + if ((c === '-' || c === '+') && /[eE]/.test(last)) { + content.push(c) + last = c + return i + 1 + } + + if(/[^\d]/.test(c)) { + token(content.join('')) + mode = NORMAL + return i + } + + content.push(c) + last = c + return i + 1 + } + + function readtoken() { + if(/[^\d\w_]/.test(c)) { + var contentstr = content.join('') + if(literalsDict[contentstr]) { + mode = KEYWORD + } else if(builtinsDict[contentstr]) { + mode = BUILTIN + } else { + mode = IDENT + } + token(content.join('')) + mode = NORMAL + return i + } + content.push(c) + last = c + return i + 1 + } +} + +},{"./lib/builtins":226,"./lib/builtins-300es":225,"./lib/literals":228,"./lib/literals-300es":227,"./lib/operators":229}],225:[function(_glvis_,module,exports){ +// 300es builtins/reserved words that were previously valid in v100 +var v100 = _glvis_('./builtins') + +// The texture2D|Cube functions have been removed +// And the gl_ features are updated +v100 = v100.slice().filter(function (b) { + return !/^(gl\_|texture)/.test(b) +}) + +module.exports = v100.concat([ + // the updated gl_ constants + 'gl_VertexID' + , 'gl_InstanceID' + , 'gl_Position' + , 'gl_PointSize' + , 'gl_FragCoord' + , 'gl_FrontFacing' + , 'gl_FragDepth' + , 'gl_PointCoord' + , 'gl_MaxVertexAttribs' + , 'gl_MaxVertexUniformVectors' + , 'gl_MaxVertexOutputVectors' + , 'gl_MaxFragmentInputVectors' + , 'gl_MaxVertexTextureImageUnits' + , 'gl_MaxCombinedTextureImageUnits' + , 'gl_MaxTextureImageUnits' + , 'gl_MaxFragmentUniformVectors' + , 'gl_MaxDrawBuffers' + , 'gl_MinProgramTexelOffset' + , 'gl_MaxProgramTexelOffset' + , 'gl_DepthRangeParameters' + , 'gl_DepthRange' + + // other builtins + , 'trunc' + , 'round' + , 'roundEven' + , 'isnan' + , 'isinf' + , 'floatBitsToInt' + , 'floatBitsToUint' + , 'intBitsToFloat' + , 'uintBitsToFloat' + , 'packSnorm2x16' + , 'unpackSnorm2x16' + , 'packUnorm2x16' + , 'unpackUnorm2x16' + , 'packHalf2x16' + , 'unpackHalf2x16' + , 'outerProduct' + , 'transpose' + , 'determinant' + , 'inverse' + , 'texture' + , 'textureSize' + , 'textureProj' + , 'textureLod' + , 'textureOffset' + , 'texelFetch' + , 'texelFetchOffset' + , 'textureProjOffset' + , 'textureLodOffset' + , 'textureProjLod' + , 'textureProjLodOffset' + , 'textureGrad' + , 'textureGradOffset' + , 'textureProjGrad' + , 'textureProjGradOffset' +]) + +},{"./builtins":226}],226:[function(_glvis_,module,exports){ +module.exports = [ + // Keep this list sorted + 'abs' + , 'acos' + , 'all' + , 'any' + , 'asin' + , 'atan' + , 'ceil' + , 'clamp' + , 'cos' + , 'cross' + , 'dFdx' + , 'dFdy' + , 'degrees' + , 'distance' + , 'dot' + , 'equal' + , 'exp' + , 'exp2' + , 'faceforward' + , 'floor' + , 'fract' + , 'gl_BackColor' + , 'gl_BackLightModelProduct' + , 'gl_BackLightProduct' + , 'gl_BackMaterial' + , 'gl_BackSecondaryColor' + , 'gl_ClipPlane' + , 'gl_ClipVertex' + , 'gl_Color' + , 'gl_DepthRange' + , 'gl_DepthRangeParameters' + , 'gl_EyePlaneQ' + , 'gl_EyePlaneR' + , 'gl_EyePlaneS' + , 'gl_EyePlaneT' + , 'gl_Fog' + , 'gl_FogCoord' + , 'gl_FogFragCoord' + , 'gl_FogParameters' + , 'gl_FragColor' + , 'gl_FragCoord' + , 'gl_FragData' + , 'gl_FragDepth' + , 'gl_FragDepthEXT' + , 'gl_FrontColor' + , 'gl_FrontFacing' + , 'gl_FrontLightModelProduct' + , 'gl_FrontLightProduct' + , 'gl_FrontMaterial' + , 'gl_FrontSecondaryColor' + , 'gl_LightModel' + , 'gl_LightModelParameters' + , 'gl_LightModelProducts' + , 'gl_LightProducts' + , 'gl_LightSource' + , 'gl_LightSourceParameters' + , 'gl_MaterialParameters' + , 'gl_MaxClipPlanes' + , 'gl_MaxCombinedTextureImageUnits' + , 'gl_MaxDrawBuffers' + , 'gl_MaxFragmentUniformComponents' + , 'gl_MaxLights' + , 'gl_MaxTextureCoords' + , 'gl_MaxTextureImageUnits' + , 'gl_MaxTextureUnits' + , 'gl_MaxVaryingFloats' + , 'gl_MaxVertexAttribs' + , 'gl_MaxVertexTextureImageUnits' + , 'gl_MaxVertexUniformComponents' + , 'gl_ModelViewMatrix' + , 'gl_ModelViewMatrixInverse' + , 'gl_ModelViewMatrixInverseTranspose' + , 'gl_ModelViewMatrixTranspose' + , 'gl_ModelViewProjectionMatrix' + , 'gl_ModelViewProjectionMatrixInverse' + , 'gl_ModelViewProjectionMatrixInverseTranspose' + , 'gl_ModelViewProjectionMatrixTranspose' + , 'gl_MultiTexCoord0' + , 'gl_MultiTexCoord1' + , 'gl_MultiTexCoord2' + , 'gl_MultiTexCoord3' + , 'gl_MultiTexCoord4' + , 'gl_MultiTexCoord5' + , 'gl_MultiTexCoord6' + , 'gl_MultiTexCoord7' + , 'gl_Normal' + , 'gl_NormalMatrix' + , 'gl_NormalScale' + , 'gl_ObjectPlaneQ' + , 'gl_ObjectPlaneR' + , 'gl_ObjectPlaneS' + , 'gl_ObjectPlaneT' + , 'gl_Point' + , 'gl_PointCoord' + , 'gl_PointParameters' + , 'gl_PointSize' + , 'gl_Position' + , 'gl_ProjectionMatrix' + , 'gl_ProjectionMatrixInverse' + , 'gl_ProjectionMatrixInverseTranspose' + , 'gl_ProjectionMatrixTranspose' + , 'gl_SecondaryColor' + , 'gl_TexCoord' + , 'gl_TextureEnvColor' + , 'gl_TextureMatrix' + , 'gl_TextureMatrixInverse' + , 'gl_TextureMatrixInverseTranspose' + , 'gl_TextureMatrixTranspose' + , 'gl_Vertex' + , 'greaterThan' + , 'greaterThanEqual' + , 'inversesqrt' + , 'length' + , 'lessThan' + , 'lessThanEqual' + , 'log' + , 'log2' + , 'matrixCompMult' + , 'max' + , 'min' + , 'mix' + , 'mod' + , 'normalize' + , 'not' + , 'notEqual' + , 'pow' + , 'radians' + , 'reflect' + , 'refract' + , 'sign' + , 'sin' + , 'smoothstep' + , 'sqrt' + , 'step' + , 'tan' + , 'texture2D' + , 'texture2DLod' + , 'texture2DProj' + , 'texture2DProjLod' + , 'textureCube' + , 'textureCubeLod' + , 'texture2DLodEXT' + , 'texture2DProjLodEXT' + , 'textureCubeLodEXT' + , 'texture2DGradEXT' + , 'texture2DProjGradEXT' + , 'textureCubeGradEXT' +] + +},{}],227:[function(_glvis_,module,exports){ +var v100 = _glvis_('./literals') + +module.exports = v100.slice().concat([ + 'layout' + , 'centroid' + , 'smooth' + , 'case' + , 'mat2x2' + , 'mat2x3' + , 'mat2x4' + , 'mat3x2' + , 'mat3x3' + , 'mat3x4' + , 'mat4x2' + , 'mat4x3' + , 'mat4x4' + , 'uvec2' + , 'uvec3' + , 'uvec4' + , 'samplerCubeShadow' + , 'sampler2DArray' + , 'sampler2DArrayShadow' + , 'isampler2D' + , 'isampler3D' + , 'isamplerCube' + , 'isampler2DArray' + , 'usampler2D' + , 'usampler3D' + , 'usamplerCube' + , 'usampler2DArray' + , 'coherent' + , 'restrict' + , 'readonly' + , 'writeonly' + , 'resource' + , 'atomic_uint' + , 'noperspective' + , 'patch' + , 'sample' + , 'subroutine' + , 'common' + , 'partition' + , 'active' + , 'filter' + , 'image1D' + , 'image2D' + , 'image3D' + , 'imageCube' + , 'iimage1D' + , 'iimage2D' + , 'iimage3D' + , 'iimageCube' + , 'uimage1D' + , 'uimage2D' + , 'uimage3D' + , 'uimageCube' + , 'image1DArray' + , 'image2DArray' + , 'iimage1DArray' + , 'iimage2DArray' + , 'uimage1DArray' + , 'uimage2DArray' + , 'image1DShadow' + , 'image2DShadow' + , 'image1DArrayShadow' + , 'image2DArrayShadow' + , 'imageBuffer' + , 'iimageBuffer' + , 'uimageBuffer' + , 'sampler1DArray' + , 'sampler1DArrayShadow' + , 'isampler1D' + , 'isampler1DArray' + , 'usampler1D' + , 'usampler1DArray' + , 'isampler2DRect' + , 'usampler2DRect' + , 'samplerBuffer' + , 'isamplerBuffer' + , 'usamplerBuffer' + , 'sampler2DMS' + , 'isampler2DMS' + , 'usampler2DMS' + , 'sampler2DMSArray' + , 'isampler2DMSArray' + , 'usampler2DMSArray' +]) + +},{"./literals":228}],228:[function(_glvis_,module,exports){ +module.exports = [ + // current + 'precision' + , 'highp' + , 'mediump' + , 'lowp' + , 'attribute' + , 'const' + , 'uniform' + , 'varying' + , 'break' + , 'continue' + , 'do' + , 'for' + , 'while' + , 'if' + , 'else' + , 'in' + , 'out' + , 'inout' + , 'float' + , 'int' + , 'uint' + , 'void' + , 'bool' + , 'true' + , 'false' + , 'discard' + , 'return' + , 'mat2' + , 'mat3' + , 'mat4' + , 'vec2' + , 'vec3' + , 'vec4' + , 'ivec2' + , 'ivec3' + , 'ivec4' + , 'bvec2' + , 'bvec3' + , 'bvec4' + , 'sampler1D' + , 'sampler2D' + , 'sampler3D' + , 'samplerCube' + , 'sampler1DShadow' + , 'sampler2DShadow' + , 'struct' + + // future + , 'asm' + , 'class' + , 'union' + , 'enum' + , 'typedef' + , 'template' + , 'this' + , 'packed' + , 'goto' + , 'switch' + , 'default' + , 'inline' + , 'noinline' + , 'volatile' + , 'public' + , 'static' + , 'extern' + , 'external' + , 'interface' + , 'long' + , 'short' + , 'double' + , 'half' + , 'fixed' + , 'unsigned' + , 'input' + , 'output' + , 'hvec2' + , 'hvec3' + , 'hvec4' + , 'dvec2' + , 'dvec3' + , 'dvec4' + , 'fvec2' + , 'fvec3' + , 'fvec4' + , 'sampler2DRect' + , 'sampler3DRect' + , 'sampler2DRectShadow' + , 'sizeof' + , 'cast' + , 'namespace' + , 'using' +] + +},{}],229:[function(_glvis_,module,exports){ +module.exports = [ + '<<=' + , '>>=' + , '++' + , '--' + , '<<' + , '>>' + , '<=' + , '>=' + , '==' + , '!=' + , '&&' + , '||' + , '+=' + , '-=' + , '*=' + , '/=' + , '%=' + , '&=' + , '^^' + , '^=' + , '|=' + , '(' + , ')' + , '[' + , ']' + , '.' + , '!' + , '~' + , '*' + , '/' + , '%' + , '+' + , '-' + , '<' + , '>' + , '&' + , '^' + , '|' + , '?' + , ':' + , '=' + , ',' + , ';' + , '{' + , '}' +] + +},{}],230:[function(_glvis_,module,exports){ +var tokenize = _glvis_('./index') + +module.exports = tokenizeString + +function tokenizeString(str, opt) { + var generator = tokenize(opt) + var tokens = [] + + tokens = tokens.concat(generator(str)) + tokens = tokens.concat(generator(null)) + + return tokens +} + +},{"./index":224}],231:[function(_glvis_,module,exports){ +module.exports = function(strings) { + if (typeof strings === 'string') strings = [strings] + var exprs = [].slice.call(arguments,1) + var parts = [] + for (var i = 0; i < strings.length-1; i++) { + parts.push(strings[i], exprs[i] || '') + } + parts.push(strings[i]) + return parts.join('') +} + +},{}],232:[function(_glvis_,module,exports){ +'use strict' + +var isBrowser = _glvis_('is-browser') + +function detect() { + var supported = false + + try { + var opts = Object.defineProperty({}, 'passive', { + get: function() { + supported = true + } + }) + + window.addEventListener('test', null, opts) + window.removeEventListener('test', null, opts) + } catch(e) { + supported = false + } + + return supported +} + +module.exports = isBrowser && detect() + +},{"is-browser":236}],233:[function(_glvis_,module,exports){ +"use strict" + +//High level idea: +// 1. Use Clarkson's incremental construction to find convex hull +// 2. Point location in triangulation by jump and walk + +module.exports = incrementalConvexHull + +var orient = _glvis_("robust-orientation") +var compareCell = _glvis_("simplicial-complex").compareCells + +function Simplex(vertices, adjacent, boundary) { + this.vertices = vertices + this.adjacent = adjacent + this.boundary = boundary + this.lastVisited = -1 +} + +Simplex.prototype.flip = function() { + var t = this.vertices[0] + this.vertices[0] = this.vertices[1] + this.vertices[1] = t + var u = this.adjacent[0] + this.adjacent[0] = this.adjacent[1] + this.adjacent[1] = u +} + +function GlueFacet(vertices, cell, index) { + this.vertices = vertices + this.cell = cell + this.index = index +} + +function compareGlue(a, b) { + return compareCell(a.vertices, b.vertices) +} + +function wrapper(test) { + return function() { + var tuple = this.tuple + return test.apply(this, tuple) + } +} + +function bakeOrient(d) { + var test = orient[d+1] + if(!test) { + test = orient + } + return wrapper(test) +} + +var BAKED = [] + +function Triangulation(dimension, vertices, simplices) { + this.dimension = dimension + this.vertices = vertices + this.simplices = simplices + this.interior = simplices.filter(function(c) { + return !c.boundary + }) + + this.tuple = new Array(dimension+1) + for(var i=0; i<=dimension; ++i) { + this.tuple[i] = this.vertices[i] + } + + var o = BAKED[dimension] + if(!o) { + o = BAKED[dimension] = bakeOrient(dimension) + } + this.orient = o +} + +var proto = Triangulation.prototype + +//Degenerate situation where we are on boundary, but coplanar to face +proto.handleBoundaryDegeneracy = function(cell, point) { + var d = this.dimension + var n = this.vertices.length - 1 + var tuple = this.tuple + var verts = this.vertices + + //Dumb solution: Just do dfs from boundary cell until we find any peak, or terminate + var toVisit = [ cell ] + cell.lastVisited = -n + while(toVisit.length > 0) { + cell = toVisit.pop() + var cellAdj = cell.adjacent + for(var i=0; i<=d; ++i) { + var neighbor = cellAdj[i] + if(!neighbor.boundary || neighbor.lastVisited <= -n) { + continue + } + var nv = neighbor.vertices + for(var j=0; j<=d; ++j) { + var vv = nv[j] + if(vv < 0) { + tuple[j] = point + } else { + tuple[j] = verts[vv] + } + } + var o = this.orient() + if(o > 0) { + return neighbor + } + neighbor.lastVisited = -n + if(o === 0) { + toVisit.push(neighbor) + } + } + } + return null +} + +proto.walk = function(point, random) { + //Alias local properties + var n = this.vertices.length - 1 + var d = this.dimension + var verts = this.vertices + var tuple = this.tuple + + //Compute initial jump cell + var initIndex = random ? (this.interior.length * Math.random())|0 : (this.interior.length-1) + var cell = this.interior[ initIndex ] + + //Start walking +outerLoop: + while(!cell.boundary) { + var cellVerts = cell.vertices + var cellAdj = cell.adjacent + + for(var i=0; i<=d; ++i) { + tuple[i] = verts[cellVerts[i]] + } + cell.lastVisited = n + + //Find farthest adjacent cell + for(var i=0; i<=d; ++i) { + var neighbor = cellAdj[i] + if(neighbor.lastVisited >= n) { + continue + } + var prev = tuple[i] + tuple[i] = point + var o = this.orient() + tuple[i] = prev + if(o < 0) { + cell = neighbor + continue outerLoop + } else { + if(!neighbor.boundary) { + neighbor.lastVisited = n + } else { + neighbor.lastVisited = -n + } + } + } + return + } + + return cell +} + +proto.addPeaks = function(point, cell) { + var n = this.vertices.length - 1 + var d = this.dimension + var verts = this.vertices + var tuple = this.tuple + var interior = this.interior + var simplices = this.simplices + + //Walking finished at boundary, time to add peaks + var tovisit = [ cell ] + + //Stretch initial boundary cell into a peak + cell.lastVisited = n + cell.vertices[cell.vertices.indexOf(-1)] = n + cell.boundary = false + interior.push(cell) + + //Record a list of all new boundaries created by added peaks so we can glue them together when we are all done + var glueFacets = [] + + //Do a traversal of the boundary walking outward from starting peak + while(tovisit.length > 0) { + //Pop off peak and walk over adjacent cells + var cell = tovisit.pop() + var cellVerts = cell.vertices + var cellAdj = cell.adjacent + var indexOfN = cellVerts.indexOf(n) + if(indexOfN < 0) { + continue + } + + for(var i=0; i<=d; ++i) { + if(i === indexOfN) { + continue + } + + //For each boundary neighbor of the cell + var neighbor = cellAdj[i] + if(!neighbor.boundary || neighbor.lastVisited >= n) { + continue + } + + var nv = neighbor.vertices + + //Test if neighbor is a peak + if(neighbor.lastVisited !== -n) { + //Compute orientation of p relative to each boundary peak + var indexOfNeg1 = 0 + for(var j=0; j<=d; ++j) { + if(nv[j] < 0) { + indexOfNeg1 = j + tuple[j] = point + } else { + tuple[j] = verts[nv[j]] + } + } + var o = this.orient() + + //Test if neighbor cell is also a peak + if(o > 0) { + nv[indexOfNeg1] = n + neighbor.boundary = false + interior.push(neighbor) + tovisit.push(neighbor) + neighbor.lastVisited = n + continue + } else { + neighbor.lastVisited = -n + } + } + + var na = neighbor.adjacent + + //Otherwise, replace neighbor with new face + var vverts = cellVerts.slice() + var vadj = cellAdj.slice() + var ncell = new Simplex(vverts, vadj, true) + simplices.push(ncell) + + //Connect to neighbor + var opposite = na.indexOf(cell) + if(opposite < 0) { + continue + } + na[opposite] = ncell + vadj[indexOfN] = neighbor + + //Connect to cell + vverts[i] = -1 + vadj[i] = cell + cellAdj[i] = ncell + + //Flip facet + ncell.flip() + + //Add to glue list + for(var j=0; j<=d; ++j) { + var uu = vverts[j] + if(uu < 0 || uu === n) { + continue + } + var nface = new Array(d-1) + var nptr = 0 + for(var k=0; k<=d; ++k) { + var vv = vverts[k] + if(vv < 0 || k === j) { + continue + } + nface[nptr++] = vv + } + glueFacets.push(new GlueFacet(nface, ncell, j)) + } + } + } + + //Glue boundary facets together + glueFacets.sort(compareGlue) + + for(var i=0; i+1= 0) { + bcell[ptr++] = cv[j] + } else { + parity = j&1 + } + } + if(parity === (d&1)) { + var t = bcell[0] + bcell[0] = bcell[1] + bcell[1] = t + } + boundary.push(bcell) + } + } + return boundary +} + +function incrementalConvexHull(points, randomSearch) { + var n = points.length + if(n === 0) { + throw new Error("Must have at least d+1 points") + } + var d = points[0].length + if(n <= d) { + throw new Error("Must input at least d+1 points") + } + + //FIXME: This could be degenerate, but need to select d+1 non-coplanar points to bootstrap process + var initialSimplex = points.slice(0, d+1) + + //Make sure initial simplex is positively oriented + var o = orient.apply(void 0, initialSimplex) + if(o === 0) { + throw new Error("Input not in general position") + } + var initialCoords = new Array(d+1) + for(var i=0; i<=d; ++i) { + initialCoords[i] = i + } + if(o < 0) { + initialCoords[0] = 1 + initialCoords[1] = 0 + } + + //Create initial topological index, glue pointers together (kind of messy) + var initialCell = new Simplex(initialCoords, new Array(d+1), false) + var boundary = initialCell.adjacent + var list = new Array(d+2) + for(var i=0; i<=d; ++i) { + var verts = initialCoords.slice() + for(var j=0; j<=d; ++j) { + if(j === i) { + verts[j] = -1 + } + } + var t = verts[0] + verts[0] = verts[1] + verts[1] = t + var cell = new Simplex(verts, new Array(d+1), true) + boundary[i] = cell + list[i] = cell + } + list[d+1] = initialCell + for(var i=0; i<=d; ++i) { + var verts = boundary[i].vertices + var adj = boundary[i].adjacent + for(var j=0; j<=d; ++j) { + var v = verts[j] + if(v < 0) { + adj[j] = initialCell + continue + } + for(var k=0; k<=d; ++k) { + if(boundary[k].vertices.indexOf(v) < 0) { + adj[j] = boundary[k] + } + } + } + } + + //Initialize triangles + var triangles = new Triangulation(d, initialSimplex, list) + + //Insert remaining points + var useRandom = !!randomSearch + for(var i=d+1; i 3*(weight+1)) { + rebuildWithInterval(this, interval) + } else { + this.left.insert(interval) + } + } else { + this.left = createIntervalTree([interval]) + } + } else if(interval[0] > this.mid) { + if(this.right) { + if(4*(this.right.count+1) > 3*(weight+1)) { + rebuildWithInterval(this, interval) + } else { + this.right.insert(interval) + } + } else { + this.right = createIntervalTree([interval]) + } + } else { + var l = bounds.ge(this.leftPoints, interval, compareBegin) + var r = bounds.ge(this.rightPoints, interval, compareEnd) + this.leftPoints.splice(l, 0, interval) + this.rightPoints.splice(r, 0, interval) + } +} + +proto.remove = function(interval) { + var weight = this.count - this.leftPoints + if(interval[1] < this.mid) { + if(!this.left) { + return NOT_FOUND + } + var rw = this.right ? this.right.count : 0 + if(4 * rw > 3 * (weight-1)) { + return rebuildWithoutInterval(this, interval) + } + var r = this.left.remove(interval) + if(r === EMPTY) { + this.left = null + this.count -= 1 + return SUCCESS + } else if(r === SUCCESS) { + this.count -= 1 + } + return r + } else if(interval[0] > this.mid) { + if(!this.right) { + return NOT_FOUND + } + var lw = this.left ? this.left.count : 0 + if(4 * lw > 3 * (weight-1)) { + return rebuildWithoutInterval(this, interval) + } + var r = this.right.remove(interval) + if(r === EMPTY) { + this.right = null + this.count -= 1 + return SUCCESS + } else if(r === SUCCESS) { + this.count -= 1 + } + return r + } else { + if(this.count === 1) { + if(this.leftPoints[0] === interval) { + return EMPTY + } else { + return NOT_FOUND + } + } + if(this.leftPoints.length === 1 && this.leftPoints[0] === interval) { + if(this.left && this.right) { + var p = this + var n = this.left + while(n.right) { + p = n + n = n.right + } + if(p === this) { + n.right = this.right + } else { + var l = this.left + var r = this.right + p.count -= n.count + p.right = n.left + n.left = l + n.right = r + } + copy(this, n) + this.count = (this.left?this.left.count:0) + (this.right?this.right.count:0) + this.leftPoints.length + } else if(this.left) { + copy(this, this.left) + } else { + copy(this, this.right) + } + return SUCCESS + } + for(var l = bounds.ge(this.leftPoints, interval, compareBegin); l=0 && arr[i][1] >= lo; --i) { + var r = cb(arr[i]) + if(r) { return r } + } +} + +function reportRange(arr, cb) { + for(var i=0; i this.mid) { + if(this.right) { + var r = this.right.queryPoint(x, cb) + if(r) { return r } + } + return reportRightRange(this.rightPoints, x, cb) + } else { + return reportRange(this.leftPoints, cb) + } +} + +proto.queryInterval = function(lo, hi, cb) { + if(lo < this.mid && this.left) { + var r = this.left.queryInterval(lo, hi, cb) + if(r) { return r } + } + if(hi > this.mid && this.right) { + var r = this.right.queryInterval(lo, hi, cb) + if(r) { return r } + } + if(hi < this.mid) { + return reportLeftRange(this.leftPoints, hi, cb) + } else if(lo > this.mid) { + return reportRightRange(this.rightPoints, lo, cb) + } else { + return reportRange(this.leftPoints, cb) + } +} + +function compareNumbers(a, b) { + return a - b +} + +function compareBegin(a, b) { + var d = a[0] - b[0] + if(d) { return d } + return a[1] - b[1] +} + +function compareEnd(a, b) { + var d = a[1] - b[1] + if(d) { return d } + return a[0] - b[0] +} + +function createIntervalTree(intervals) { + if(intervals.length === 0) { + return null + } + var pts = [] + for(var i=0; i>1] + + var leftIntervals = [] + var rightIntervals = [] + var centerIntervals = [] + for(var i=0; i + * @license MIT + */ + +// The _isBuffer check is for Safari 5-7 support, because it's missing +// Object.prototype.constructor. Remove this eventually +module.exports = function (obj) { + return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer) +} + +function isBuffer (obj) { + return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj) +} + +// For Node v0.10 support. Remove this eventually. +function isSlowBuffer (obj) { + return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0)) +} + +},{}],238:[function(_glvis_,module,exports){ +'use strict' + +module.exports = isMobile +module.exports.isMobile = isMobile +module.exports.default = isMobile + +var mobileRE = /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series[46]0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i + +var tabletRE = /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series[46]0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino|android|ipad|playbook|silk/i + +function isMobile (opts) { + if (!opts) opts = {} + var ua = opts.ua + if (!ua && typeof navigator !== 'undefined') ua = navigator.userAgent + if (ua && ua.headers && typeof ua.headers['user-agent'] === 'string') { + ua = ua.headers['user-agent'] + } + if (typeof ua !== 'string') return false + + var result = opts.tablet ? tabletRE.test(ua) : mobileRE.test(ua) + + if ( + !result && + opts.tablet && + opts.featureDetect && + navigator && + navigator.maxTouchPoints > 1 && + ua.indexOf('Macintosh') !== -1 && + ua.indexOf('Safari') !== -1 + ) { + result = true + } + + return result +} + +},{}],239:[function(_glvis_,module,exports){ +'use strict'; + +/** + * Is this string all whitespace? + * This solution kind of makes my brain hurt, but it's significantly faster + * than !str.trim() or any other solution I could find. + * + * whitespace codes from: http://en.wikipedia.org/wiki/Whitespace_character + * and verified with: + * + * for(var i = 0; i < 65536; i++) { + * var s = String.fromCharCode(i); + * if(+s===0 && !s.trim()) console.log(i, s); + * } + * + * which counts a couple of these as *not* whitespace, but finds nothing else + * that *is* whitespace. Note that charCodeAt stops at 16 bits, but it appears + * that there are no whitespace characters above this, and code points above + * this do not map onto white space characters. + */ + +module.exports = function(str){ + var l = str.length, + a; + for(var i = 0; i < l; i++) { + a = str.charCodeAt(i); + if((a < 9 || a > 13) && (a !== 32) && (a !== 133) && (a !== 160) && + (a !== 5760) && (a !== 6158) && (a < 8192 || a > 8205) && + (a !== 8232) && (a !== 8233) && (a !== 8239) && (a !== 8287) && + (a !== 8288) && (a !== 12288) && (a !== 65279)) { + return false; + } + } + return true; +} + +},{}],240:[function(_glvis_,module,exports){ +function lerp(v0, v1, t) { + return v0*(1-t)+v1*t +} +module.exports = lerp +},{}],241:[function(_glvis_,module,exports){ +/*jshint unused:true*/ +/* +Input: matrix ; a 4x4 matrix +Output: translation ; a 3 component vector + scale ; a 3 component vector + skew ; skew factors XY,XZ,YZ represented as a 3 component vector + perspective ; a 4 component vector + quaternion ; a 4 component vector +Returns false if the matrix cannot be decomposed, true if it can + + +References: +https://github.com/kamicane/matrix3d/blob/master/lib/Matrix3d.js +https://github.com/ChromiumWebApps/chromium/blob/master/ui/gfx/transform_util.cc +http://www.w3.org/TR/css3-transforms/#decomposing-a-3d-matrix +*/ + +var normalize = _glvis_('./normalize') + +var create = _glvis_('gl-mat4/create') +var clone = _glvis_('gl-mat4/clone') +var determinant = _glvis_('gl-mat4/determinant') +var invert = _glvis_('gl-mat4/invert') +var transpose = _glvis_('gl-mat4/transpose') +var vec3 = { + length: _glvis_('gl-vec3/length'), + normalize: _glvis_('gl-vec3/normalize'), + dot: _glvis_('gl-vec3/dot'), + cross: _glvis_('gl-vec3/cross') +} + +var tmp = create() +var perspectiveMatrix = create() +var tmpVec4 = [0, 0, 0, 0] +var row = [ [0,0,0], [0,0,0], [0,0,0] ] +var pdum3 = [0,0,0] + +module.exports = function decomposeMat4(matrix, translation, scale, skew, perspective, quaternion) { + if (!translation) translation = [0,0,0] + if (!scale) scale = [0,0,0] + if (!skew) skew = [0,0,0] + if (!perspective) perspective = [0,0,0,1] + if (!quaternion) quaternion = [0,0,0,1] + + //normalize, if not possible then bail out early + if (!normalize(tmp, matrix)) + return false + + // perspectiveMatrix is used to solve for perspective, but it also provides + // an easy way to test for singularity of the upper 3x3 component. + clone(perspectiveMatrix, tmp) + + perspectiveMatrix[3] = 0 + perspectiveMatrix[7] = 0 + perspectiveMatrix[11] = 0 + perspectiveMatrix[15] = 1 + + // If the perspectiveMatrix is not invertible, we are also unable to + // decompose, so we'll bail early. Constant taken from SkMatrix44::invert. + if (Math.abs(determinant(perspectiveMatrix) < 1e-8)) + return false + + var a03 = tmp[3], a13 = tmp[7], a23 = tmp[11], + a30 = tmp[12], a31 = tmp[13], a32 = tmp[14], a33 = tmp[15] + + // First, isolate perspective. + if (a03 !== 0 || a13 !== 0 || a23 !== 0) { + tmpVec4[0] = a03 + tmpVec4[1] = a13 + tmpVec4[2] = a23 + tmpVec4[3] = a33 + + // Solve the equation by inverting perspectiveMatrix and multiplying + // rightHandSide by the inverse. + // resuing the perspectiveMatrix here since it's no longer needed + var ret = invert(perspectiveMatrix, perspectiveMatrix) + if (!ret) return false + transpose(perspectiveMatrix, perspectiveMatrix) + + //multiply by transposed inverse perspective matrix, into perspective vec4 + vec4multMat4(perspective, tmpVec4, perspectiveMatrix) + } else { + //no perspective + perspective[0] = perspective[1] = perspective[2] = 0 + perspective[3] = 1 + } + + // Next take care of translation + translation[0] = a30 + translation[1] = a31 + translation[2] = a32 + + // Now get scale and shear. 'row' is a 3 element array of 3 component vectors + mat3from4(row, tmp) + + // Compute X scale factor and normalize first row. + scale[0] = vec3.length(row[0]) + vec3.normalize(row[0], row[0]) + + // Compute XY shear factor and make 2nd row orthogonal to 1st. + skew[0] = vec3.dot(row[0], row[1]) + combine(row[1], row[1], row[0], 1.0, -skew[0]) + + // Now, compute Y scale and normalize 2nd row. + scale[1] = vec3.length(row[1]) + vec3.normalize(row[1], row[1]) + skew[0] /= scale[1] + + // Compute XZ and YZ shears, orthogonalize 3rd row + skew[1] = vec3.dot(row[0], row[2]) + combine(row[2], row[2], row[0], 1.0, -skew[1]) + skew[2] = vec3.dot(row[1], row[2]) + combine(row[2], row[2], row[1], 1.0, -skew[2]) + + // Next, get Z scale and normalize 3rd row. + scale[2] = vec3.length(row[2]) + vec3.normalize(row[2], row[2]) + skew[1] /= scale[2] + skew[2] /= scale[2] + + + // At this point, the matrix (in rows) is orthonormal. + // Check for a coordinate system flip. If the determinant + // is -1, then negate the matrix and the scaling factors. + vec3.cross(pdum3, row[1], row[2]) + if (vec3.dot(row[0], pdum3) < 0) { + for (var i = 0; i < 3; i++) { + scale[i] *= -1; + row[i][0] *= -1 + row[i][1] *= -1 + row[i][2] *= -1 + } + } + + // Now, get the rotations out + quaternion[0] = 0.5 * Math.sqrt(Math.max(1 + row[0][0] - row[1][1] - row[2][2], 0)) + quaternion[1] = 0.5 * Math.sqrt(Math.max(1 - row[0][0] + row[1][1] - row[2][2], 0)) + quaternion[2] = 0.5 * Math.sqrt(Math.max(1 - row[0][0] - row[1][1] + row[2][2], 0)) + quaternion[3] = 0.5 * Math.sqrt(Math.max(1 + row[0][0] + row[1][1] + row[2][2], 0)) + + if (row[2][1] > row[1][2]) + quaternion[0] = -quaternion[0] + if (row[0][2] > row[2][0]) + quaternion[1] = -quaternion[1] + if (row[1][0] > row[0][1]) + quaternion[2] = -quaternion[2] + return true +} + +//will be replaced by gl-vec4 eventually +function vec4multMat4(out, a, m) { + var x = a[0], y = a[1], z = a[2], w = a[3]; + out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w; + out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w; + out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w; + out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w; + return out; +} + +//gets upper-left of a 4x4 matrix into a 3x3 of vectors +function mat3from4(out, mat4x4) { + out[0][0] = mat4x4[0] + out[0][1] = mat4x4[1] + out[0][2] = mat4x4[2] + + out[1][0] = mat4x4[4] + out[1][1] = mat4x4[5] + out[1][2] = mat4x4[6] + + out[2][0] = mat4x4[8] + out[2][1] = mat4x4[9] + out[2][2] = mat4x4[10] +} + +function combine(out, a, b, scale1, scale2) { + out[0] = a[0] * scale1 + b[0] * scale2 + out[1] = a[1] * scale1 + b[1] * scale2 + out[2] = a[2] * scale1 + b[2] * scale2 +} +},{"./normalize":242,"gl-mat4/clone":92,"gl-mat4/create":93,"gl-mat4/determinant":94,"gl-mat4/invert":98,"gl-mat4/transpose":109,"gl-vec3/cross":157,"gl-vec3/dot":162,"gl-vec3/length":172,"gl-vec3/normalize":179}],242:[function(_glvis_,module,exports){ +module.exports = function normalize(out, mat) { + var m44 = mat[15] + // Cannot normalize. + if (m44 === 0) + return false + var scale = 1 / m44 + for (var i=0; i<16; i++) + out[i] = mat[i] * scale + return true +} +},{}],243:[function(_glvis_,module,exports){ +var lerp = _glvis_('gl-vec3/lerp') + +var recompose = _glvis_('mat4-recompose') +var decompose = _glvis_('mat4-decompose') +var determinant = _glvis_('gl-mat4/determinant') +var slerp = _glvis_('quat-slerp') + +var state0 = state() +var state1 = state() +var tmp = state() + +module.exports = interpolate +function interpolate(out, start, end, alpha) { + if (determinant(start) === 0 || determinant(end) === 0) + return false + + //decompose the start and end matrices into individual components + var r0 = decompose(start, state0.translate, state0.scale, state0.skew, state0.perspective, state0.quaternion) + var r1 = decompose(end, state1.translate, state1.scale, state1.skew, state1.perspective, state1.quaternion) + if (!r0 || !r1) + return false + + + //now lerp/slerp the start and end components into a temporary lerp(tmptranslate, state0.translate, state1.translate, alpha) + lerp(tmp.translate, state0.translate, state1.translate, alpha) + lerp(tmp.skew, state0.skew, state1.skew, alpha) + lerp(tmp.scale, state0.scale, state1.scale, alpha) + lerp(tmp.perspective, state0.perspective, state1.perspective, alpha) + slerp(tmp.quaternion, state0.quaternion, state1.quaternion, alpha) + + //and recompose into our 'out' matrix + recompose(out, tmp.translate, tmp.scale, tmp.skew, tmp.perspective, tmp.quaternion) + return true +} + +function state() { + return { + translate: vec3(), + scale: vec3(1), + skew: vec3(), + perspective: vec4(), + quaternion: vec4() + } +} + +function vec3(n) { + return [n||0,n||0,n||0] +} + +function vec4() { + return [0,0,0,1] +} +},{"gl-mat4/determinant":94,"gl-vec3/lerp":173,"mat4-decompose":241,"mat4-recompose":244,"quat-slerp":271}],244:[function(_glvis_,module,exports){ +/* +Input: translation ; a 3 component vector + scale ; a 3 component vector + skew ; skew factors XY,XZ,YZ represented as a 3 component vector + perspective ; a 4 component vector + quaternion ; a 4 component vector +Output: matrix ; a 4x4 matrix + +From: http://www.w3.org/TR/css3-transforms/#recomposing-to-a-3d-matrix +*/ + +var mat4 = { + identity: _glvis_('gl-mat4/identity'), + translate: _glvis_('gl-mat4/translate'), + multiply: _glvis_('gl-mat4/multiply'), + create: _glvis_('gl-mat4/create'), + scale: _glvis_('gl-mat4/scale'), + fromRotationTranslation: _glvis_('gl-mat4/fromRotationTranslation') +} + +var rotationMatrix = mat4.create() +var temp = mat4.create() + +module.exports = function recomposeMat4(matrix, translation, scale, skew, perspective, quaternion) { + mat4.identity(matrix) + + //apply translation & rotation + mat4.fromRotationTranslation(matrix, quaternion, translation) + + //apply perspective + matrix[3] = perspective[0] + matrix[7] = perspective[1] + matrix[11] = perspective[2] + matrix[15] = perspective[3] + + // apply skew + // temp is a identity 4x4 matrix initially + mat4.identity(temp) + + if (skew[2] !== 0) { + temp[9] = skew[2] + mat4.multiply(matrix, matrix, temp) + } + + if (skew[1] !== 0) { + temp[9] = 0 + temp[8] = skew[1] + mat4.multiply(matrix, matrix, temp) + } + + if (skew[0] !== 0) { + temp[8] = 0 + temp[4] = skew[0] + mat4.multiply(matrix, matrix, temp) + } + + //apply scale + mat4.scale(matrix, matrix, scale) + return matrix +} +},{"gl-mat4/create":93,"gl-mat4/fromRotationTranslation":96,"gl-mat4/identity":97,"gl-mat4/multiply":100,"gl-mat4/scale":107,"gl-mat4/translate":108}],245:[function(_glvis_,module,exports){ +'use strict' + +var bsearch = _glvis_('binary-search-bounds') +var m4interp = _glvis_('mat4-interpolate') +var invert44 = _glvis_('gl-mat4/invert') +var rotateX = _glvis_('gl-mat4/rotateX') +var rotateY = _glvis_('gl-mat4/rotateY') +var rotateZ = _glvis_('gl-mat4/rotateZ') +var lookAt = _glvis_('gl-mat4/lookAt') +var translate = _glvis_('gl-mat4/translate') +var scale = _glvis_('gl-mat4/scale') +var normalize = _glvis_('gl-vec3/normalize') + +var DEFAULT_CENTER = [0,0,0] + +module.exports = createMatrixCameraController + +function MatrixCameraController(initialMatrix) { + this._components = initialMatrix.slice() + this._time = [0] + this.prevMatrix = initialMatrix.slice() + this.nextMatrix = initialMatrix.slice() + this.computedMatrix = initialMatrix.slice() + this.computedInverse = initialMatrix.slice() + this.computedEye = [0,0,0] + this.computedUp = [0,0,0] + this.computedCenter = [0,0,0] + this.computedRadius = [0] + this._limits = [-Infinity, Infinity] +} + +var proto = MatrixCameraController.prototype + +proto.recalcMatrix = function(t) { + var time = this._time + var tidx = bsearch.le(time, t) + var mat = this.computedMatrix + if(tidx < 0) { + return + } + var comps = this._components + if(tidx === time.length-1) { + var ptr = 16*tidx + for(var i=0; i<16; ++i) { + mat[i] = comps[ptr++] + } + } else { + var dt = (time[tidx+1] - time[tidx]) + var ptr = 16*tidx + var prev = this.prevMatrix + var allEqual = true + for(var i=0; i<16; ++i) { + prev[i] = comps[ptr++] + } + var next = this.nextMatrix + for(var i=0; i<16; ++i) { + next[i] = comps[ptr++] + allEqual = allEqual && (prev[i] === next[i]) + } + if(dt < 1e-6 || allEqual) { + for(var i=0; i<16; ++i) { + mat[i] = prev[i] + } + } else { + m4interp(mat, prev, next, (t - time[tidx])/dt) + } + } + + var up = this.computedUp + up[0] = mat[1] + up[1] = mat[5] + up[2] = mat[9] + normalize(up, up) + + var imat = this.computedInverse + invert44(imat, mat) + var eye = this.computedEye + var w = imat[15] + eye[0] = imat[12]/w + eye[1] = imat[13]/w + eye[2] = imat[14]/w + + var center = this.computedCenter + var radius = Math.exp(this.computedRadius[0]) + for(var i=0; i<3; ++i) { + center[i] = eye[i] - mat[2+4*i] * radius + } +} + +proto.idle = function(t) { + if(t < this.lastT()) { + return + } + var mc = this._components + var ptr = mc.length-16 + for(var i=0; i<16; ++i) { + mc.push(mc[ptr++]) + } + this._time.push(t) +} + +proto.flush = function(t) { + var idx = bsearch.gt(this._time, t) - 2 + if(idx < 0) { + return + } + this._time.splice(0, idx) + this._components.splice(0, 16*idx) +} + +proto.lastT = function() { + return this._time[this._time.length-1] +} + +proto.lookAt = function(t, eye, center, up) { + this.recalcMatrix(t) + eye = eye || this.computedEye + center = center || DEFAULT_CENTER + up = up || this.computedUp + this.setMatrix(t, lookAt(this.computedMatrix, eye, center, up)) + var d2 = 0.0 + for(var i=0; i<3; ++i) { + d2 += Math.pow(center[i] - eye[i], 2) + } + d2 = Math.log(Math.sqrt(d2)) + this.computedRadius[0] = d2 +} + +proto.rotate = function(t, yaw, pitch, roll) { + this.recalcMatrix(t) + var mat = this.computedInverse + if(yaw) rotateY(mat, mat, yaw) + if(pitch) rotateX(mat, mat, pitch) + if(roll) rotateZ(mat, mat, roll) + this.setMatrix(t, invert44(this.computedMatrix, mat)) +} + +var tvec = [0,0,0] + +proto.pan = function(t, dx, dy, dz) { + tvec[0] = -(dx || 0.0) + tvec[1] = -(dy || 0.0) + tvec[2] = -(dz || 0.0) + this.recalcMatrix(t) + var mat = this.computedInverse + translate(mat, mat, tvec) + this.setMatrix(t, invert44(mat, mat)) +} + +proto.translate = function(t, dx, dy, dz) { + tvec[0] = dx || 0.0 + tvec[1] = dy || 0.0 + tvec[2] = dz || 0.0 + this.recalcMatrix(t) + var mat = this.computedMatrix + translate(mat, mat, tvec) + this.setMatrix(t, mat) +} + +proto.setMatrix = function(t, mat) { + if(t < this.lastT()) { + return + } + this._time.push(t) + for(var i=0; i<16; ++i) { + this._components.push(mat[i]) + } +} + +proto.setDistance = function(t, d) { + this.computedRadius[0] = d +} + +proto.setDistanceLimits = function(a,b) { + var lim = this._limits + lim[0] = a + lim[1] = b +} + +proto.getDistanceLimits = function(out) { + var lim = this._limits + if(out) { + out[0] = lim[0] + out[1] = lim[1] + return out + } + return lim +} + +function createMatrixCameraController(options) { + options = options || {} + var matrix = options.matrix || + [1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 0,0,0,1] + return new MatrixCameraController(matrix) +} + +},{"binary-search-bounds":31,"gl-mat4/invert":98,"gl-mat4/lookAt":99,"gl-mat4/rotateX":104,"gl-mat4/rotateY":105,"gl-mat4/rotateZ":106,"gl-mat4/scale":107,"gl-mat4/translate":108,"gl-vec3/normalize":179,"mat4-interpolate":243}],246:[function(_glvis_,module,exports){ +'use strict' + +module.exports = monotoneConvexHull2D + +var orient = _glvis_('robust-orientation')[3] + +function monotoneConvexHull2D(points) { + var n = points.length + + if(n < 3) { + var result = new Array(n) + for(var i=0; i 1 && orient( + points[lower[m-2]], + points[lower[m-1]], + p) <= 0) { + m -= 1 + lower.pop() + } + lower.push(idx) + + //Insert into upper list + m = upper.length + while(m > 1 && orient( + points[upper[m-2]], + points[upper[m-1]], + p) >= 0) { + m -= 1 + upper.pop() + } + upper.push(idx) + } + + //Merge lists together + var result = new Array(upper.length + lower.length - 2) + var ptr = 0 + for(var i=0, nl=lower.length; i0; --j) { + result[ptr++] = upper[j] + } + + //Return result + return result +} +},{"robust-orientation":284}],247:[function(_glvis_,module,exports){ +'use strict' + +module.exports = mouseListen + +var mouse = _glvis_('mouse-event') + +function mouseListen (element, callback) { + if (!callback) { + callback = element + element = window + } + + var buttonState = 0 + var x = 0 + var y = 0 + var mods = { + shift: false, + alt: false, + control: false, + meta: false + } + var attached = false + + function updateMods (ev) { + var changed = false + if ('altKey' in ev) { + changed = changed || ev.altKey !== mods.alt + mods.alt = !!ev.altKey + } + if ('shiftKey' in ev) { + changed = changed || ev.shiftKey !== mods.shift + mods.shift = !!ev.shiftKey + } + if ('ctrlKey' in ev) { + changed = changed || ev.ctrlKey !== mods.control + mods.control = !!ev.ctrlKey + } + if ('metaKey' in ev) { + changed = changed || ev.metaKey !== mods.meta + mods.meta = !!ev.metaKey + } + return changed + } + + function handleEvent (nextButtons, ev) { + var nextX = mouse.x(ev) + var nextY = mouse.y(ev) + if ('buttons' in ev) { + nextButtons = ev.buttons | 0 + } + if (nextButtons !== buttonState || + nextX !== x || + nextY !== y || + updateMods(ev)) { + buttonState = nextButtons | 0 + x = nextX || 0 + y = nextY || 0 + callback && callback(buttonState, x, y, mods) + } + } + + function clearState (ev) { + handleEvent(0, ev) + } + + function handleBlur () { + if (buttonState || + x || + y || + mods.shift || + mods.alt || + mods.meta || + mods.control) { + x = y = 0 + buttonState = 0 + mods.shift = mods.alt = mods.control = mods.meta = false + callback && callback(0, 0, 0, mods) + } + } + + function handleMods (ev) { + if (updateMods(ev)) { + callback && callback(buttonState, x, y, mods) + } + } + + function handleMouseMove (ev) { + if (mouse.buttons(ev) === 0) { + handleEvent(0, ev) + } else { + handleEvent(buttonState, ev) + } + } + + function handleMouseDown (ev) { + handleEvent(buttonState | mouse.buttons(ev), ev) + } + + function handleMouseUp (ev) { + handleEvent(buttonState & ~mouse.buttons(ev), ev) + } + + function attachListeners () { + if (attached) { + return + } + attached = true + + element.addEventListener('mousemove', handleMouseMove) + + element.addEventListener('mousedown', handleMouseDown) + + element.addEventListener('mouseup', handleMouseUp) + + element.addEventListener('mouseleave', clearState) + element.addEventListener('mouseenter', clearState) + element.addEventListener('mouseout', clearState) + element.addEventListener('mouseover', clearState) + + element.addEventListener('blur', handleBlur) + + element.addEventListener('keyup', handleMods) + element.addEventListener('keydown', handleMods) + element.addEventListener('keypress', handleMods) + + if (element !== window) { + window.addEventListener('blur', handleBlur) + + window.addEventListener('keyup', handleMods) + window.addEventListener('keydown', handleMods) + window.addEventListener('keypress', handleMods) + } + } + + function detachListeners () { + if (!attached) { + return + } + attached = false + + element.removeEventListener('mousemove', handleMouseMove) + + element.removeEventListener('mousedown', handleMouseDown) + + element.removeEventListener('mouseup', handleMouseUp) + + element.removeEventListener('mouseleave', clearState) + element.removeEventListener('mouseenter', clearState) + element.removeEventListener('mouseout', clearState) + element.removeEventListener('mouseover', clearState) + + element.removeEventListener('blur', handleBlur) + + element.removeEventListener('keyup', handleMods) + element.removeEventListener('keydown', handleMods) + element.removeEventListener('keypress', handleMods) + + if (element !== window) { + window.removeEventListener('blur', handleBlur) + + window.removeEventListener('keyup', handleMods) + window.removeEventListener('keydown', handleMods) + window.removeEventListener('keypress', handleMods) + } + } + + // Attach listeners + attachListeners() + + var result = { + element: element + } + + Object.defineProperties(result, { + enabled: { + get: function () { return attached }, + set: function (f) { + if (f) { + attachListeners() + } else { + detachListeners() + } + }, + enumerable: true + }, + buttons: { + get: function () { return buttonState }, + enumerable: true + }, + x: { + get: function () { return x }, + enumerable: true + }, + y: { + get: function () { return y }, + enumerable: true + }, + mods: { + get: function () { return mods }, + enumerable: true + } + }) + + return result +} + +},{"mouse-event":249}],248:[function(_glvis_,module,exports){ +var rootPosition = { left: 0, top: 0 } + +module.exports = mouseEventOffset +function mouseEventOffset (ev, target, out) { + target = target || ev.currentTarget || ev.srcElement + if (!Array.isArray(out)) { + out = [ 0, 0 ] + } + var cx = ev.clientX || 0 + var cy = ev.clientY || 0 + var rect = getBoundingClientOffset(target) + out[0] = cx - rect.left + out[1] = cy - rect.top + return out +} + +function getBoundingClientOffset (element) { + if (element === window || + element === document || + element === document.body) { + return rootPosition + } else { + return element.getBoundingClientRect() + } +} + +},{}],249:[function(_glvis_,module,exports){ +'use strict' + +function mouseButtons(ev) { + if(typeof ev === 'object') { + if('buttons' in ev) { + return ev.buttons + } else if('which' in ev) { + var b = ev.which + if(b === 2) { + return 4 + } else if(b === 3) { + return 2 + } else if(b > 0) { + return 1<<(b-1) + } + } else if('button' in ev) { + var b = ev.button + if(b === 1) { + return 4 + } else if(b === 2) { + return 2 + } else if(b >= 0) { + return 1< 0) { + i1 = 1 + P[X++] = phase(d0[p0], x0, x1, x2) + p0 += u0_0 + if (s0 > 0) { + i0 = 1 + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + } + X += 1 + p0 += u0_0 + for (i0 = 2; i0 < s0; ++i0) { + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + if (b3 !== b1) { + face(V[X + e1], v0, c0_3, c0_1, b3, b1, x0, x1, x2) + } + } + X += 1 + p0 += u0_0 + } + } + p0 += u0_1 + X = 0 + T = e1 + e1 = y1 + y1 = T + T = e2 + e2 = y2 + y2 = T + T = e3 + e3 = y3 + y3 = T + for (i1 = 2; i1 < s1; ++i1) { + P[X++] = phase(d0[p0], x0, x1, x2) + p0 += u0_0 + if (s0 > 0) { + i0 = 1 + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + if (b3 !== b2) { + face(V[X + e2], v0, c0_2, c0_3, b2, b3, x0, x1, x2) + } + } + X += 1 + p0 += u0_0 + for (i0 = 2; i0 < s0; ++i0) { + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + if (b3 !== b2) { + face(V[X + e2], v0, c0_2, c0_3, b2, b3, x0, x1, x2) + } + if (b3 !== b1) { + face(V[X + e1], v0, c0_3, c0_1, b3, b1, x0, x1, x2) + } + } + X += 1 + p0 += u0_0 + } + } + if (i1 & 1) { + X = 0 + } + T = e1 + e1 = y1 + y1 = T + T = e2 + e2 = y2 + y2 = T + T = e3 + e3 = y3 + y3 = T + p0 += u0_1 + } + } + freeUint32(V) + freeUint32(P) + } + }, + "false,1,0": function anonymous(vertex, face, phase, mallocUint32, freeUint32) { + return function extractContour1_0(a0, x0, x1, x2) { + var s0 = a0.shape[0] | 0, + s1 = a0.shape[1] | 0, + d0 = a0.data, + o0 = a0.offset | 0, + t0_0 = a0.stride[0] | 0, + t0_1 = a0.stride[1] | 0, + p0 = o0, + c0_0, + d0_1 = -t0_0 | 0, + c0_1 = 0, + d0_2 = -t0_1 | 0, + c0_2 = 0, + d0_3 = (-t0_0 - t0_1) | 0, + c0_3 = 0, + u0_1 = t0_1 | 0, + u0_0 = (t0_0 - t0_1 * s1) | 0, + i0 = 0, + i1 = 0, + N = 0, + Q = (2 * s1) | 0, + P = mallocUint32(Q), + V = mallocUint32(Q), + X = 0, + b0 = 0, + e2 = -1 | 0, + y2 = -1 | 0, + b2 = 0, + e1 = -s1 | 0, + y1 = s1 | 0, + b1 = 0, + e3 = (-s1 - 1) | 0, + y3 = (s1 - 1) | 0, + b3 = 0, + v0 = 0, + T = 0 + for (i1 = 0; i1 < s1; ++i1) { + P[X++] = phase(d0[p0], x0, x1, x2) + p0 += u0_1 + } + p0 += u0_0 + if (s0 > 0) { + i0 = 1 + P[X++] = phase(d0[p0], x0, x1, x2) + p0 += u0_1 + if (s1 > 0) { + i1 = 1 + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + } + X += 1 + p0 += u0_1 + for (i1 = 2; i1 < s1; ++i1) { + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + if (b3 !== b2) { + face(V[X + e2], v0, c0_2, c0_3, b2, b3, x0, x1, x2) + } + } + X += 1 + p0 += u0_1 + } + } + p0 += u0_0 + X = 0 + T = e1 + e1 = y1 + y1 = T + T = e2 + e2 = y2 + y2 = T + T = e3 + e3 = y3 + y3 = T + for (i0 = 2; i0 < s0; ++i0) { + P[X++] = phase(d0[p0], x0, x1, x2) + p0 += u0_1 + if (s1 > 0) { + i1 = 1 + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + if (b3 !== b1) { + face(V[X + e1], v0, c0_3, c0_1, b3, b1, x0, x1, x2) + } + } + X += 1 + p0 += u0_1 + for (i1 = 2; i1 < s1; ++i1) { + c0_0 = d0[p0] + b0 = P[X] = phase(c0_0, x0, x1, x2) + b1 = P[X + e1] + b2 = P[X + e2] + b3 = P[X + e3] + if (b0 !== b1 || b0 !== b2 || b0 !== b3) { + c0_1 = d0[p0 + d0_1] + c0_2 = d0[p0 + d0_2] + c0_3 = d0[p0 + d0_3] + vertex(i0, i1, c0_0, c0_1, c0_2, c0_3, b0, b1, b2, b3, x0, x1, x2) + v0 = V[X] = N++ + if (b3 !== b2) { + face(V[X + e2], v0, c0_2, c0_3, b2, b3, x0, x1, x2) + } + if (b3 !== b1) { + face(V[X + e1], v0, c0_3, c0_1, b3, b1, x0, x1, x2) + } + } + X += 1 + p0 += u0_1 + } + } + if (i0 & 1) { + X = 0 + } + T = e1 + e1 = y1 + y1 = T + T = e2 + e2 = y2 + y2 = T + T = e3 + e3 = y3 + y3 = T + p0 += u0_0 + } + } + freeUint32(V) + freeUint32(P) + } + }, +} + +//Generates the surface procedure +function compileSurfaceProcedure(vertexFunc, faceFunc, phaseFunc, scalarArgs, order, typesig) { + var key = [typesig, order].join(',') + var proc = allFns[key] + + return proc( + vertexFunc, + faceFunc, + phaseFunc, + pool.mallocUint32, + pool.freeUint32) +} + +function createSurfaceExtractor(args) { + function error(msg) { + throw new Error("ndarray-extract-contour: " + msg) + } + if(typeof args !== "object") { + error("Must specify arguments") + } + var order = args.order + if(!Array.isArray(order)) { + error("Must specify order") + } + var arrays = args.arrayArguments||1 + if(arrays < 1) { + error("Must have at least one array argument") + } + var scalars = args.scalarArguments||0 + if(scalars < 0) { + error("Scalar arg count must be > 0") + } + if(typeof args.vertex !== "function") { + error("Must specify vertex creation function") + } + if(typeof args.cell !== "function") { + error("Must specify cell creation function") + } + if(typeof args.phase !== "function") { + error("Must specify phase function") + } + var getters = args.getters || [] + var typesig = new Array(arrays) + for(var i=0; i= 0) { + typesig[i] = true + } else { + typesig[i] = false + } + } + return compileSurfaceProcedure( + args.vertex, + args.cell, + args.phase, + scalars, + order, + typesig) +} +},{"typedarray-pool":308}],252:[function(_glvis_,module,exports){ +'use strict' + +var dup = _glvis_('dup') + +var CACHED_CWiseOp = { + zero: function(SS, a0, t0, p0) { + var s0 = SS[0], t0p0 = t0[0] + p0 |= 0 + var i0 = 0, d0s0 = t0p0 + for (i0 = 0; i0 < s0; ++i0) { + a0[p0] = 0 + p0 += d0s0 + } + }, + + fdTemplate1: function(SS, a0, t0, p0, a1, t1, p1) { + var s0 = SS[0], t0p0 = t0[0], t1p0 = t1[0], q0 = -1 * t0p0, q1 = t0p0 + p0 |= 0 + p1 |= 0 + var i0 = 0, d0s0 = t0p0, d1s0 = t1p0 + for (i0 = 0; i0 < s0; ++i0) { + a1[p1] = 0.5 * (a0[p0 + q0] - a0[p0 + q1]) + p0 += d0s0 + p1 += d1s0 + } + }, + + fdTemplate2: function(SS, a0, t0, p0, a1, t1, p1, a2, t2, p2) { + var s0 = SS[0], s1 = SS[1], t0p0 = t0[0], t0p1 = t0[1], t1p0 = t1[0], t1p1 = t1[1], t2p0 = t2[0], t2p1 = t2[1], q0 = -1 * t0p0, q1 = t0p0, q2 = -1 * t0p1, q3 = t0p1 + p0 |= 0 + p1 |= 0 + p2 |= 0 + var i0 = 0, i1 = 0, d0s0 = t0p1, d0s1 = (t0p0 - s1 * t0p1), d1s0 = t1p1, d1s1 = (t1p0 - s1 * t1p1), d2s0 = t2p1, d2s1 = (t2p0 - s1 * t2p1) + for (i1 = 0; i1 < s0; ++i1) { + for (i0 = 0; i0 < s1; ++i0) { + a1[p1] = 0.5 * (a0[p0 + q0] - a0[p0 + q1]); a2[p2] = 0.5 * (a0[p0 + q2] - a0[p0 + q3]) + p0 += d0s0 + p1 += d1s0 + p2 += d2s0 + } + p0 += d0s1 + p1 += d1s1 + p2 += d2s1 + } + } +} + +var CACHED_thunk = { + cdiff: function(compile) { + var CACHED = {} + return function cdiff_cwise_thunk(array0, array1, array2) { + var t0 = array0.dtype, r0 = array0.order, t1 = array1.dtype, r1 = array1.order, t2 = array2.dtype, r2 = array2.order, type = [t0, r0.join(), t1, r1.join(), t2, r2.join()].join(), proc = CACHED[type] + if (!proc) { CACHED[type] = proc = compile([t0, r0, t1, r1, t2, r2]) } return proc(array0.shape.slice(0), array0.data, array0.stride, array0.offset | 0, array1.data, array1.stride, array1.offset | 0, array2.data, array2.stride, array2.offset | 0) + } + }, + + zero: function(compile) { + var CACHED = {} + return function zero_cwise_thunk(array0) { + var t0 = array0.dtype, r0 = array0.order, type = [t0, r0.join()].join(), proc = CACHED[type] + if (!proc) { CACHED[type] = proc = compile([t0, r0]) } return proc(array0.shape.slice(0), array0.data, array0.stride, array0.offset | 0) + } + }, + + fdTemplate1: function(compile) { + var CACHED = {} + return function fdTemplate1_cwise_thunk(array0, array1) { + var t0 = array0.dtype, r0 = array0.order, t1 = array1.dtype, r1 = array1.order, type = [t0, r0.join(), t1, r1.join()].join(), proc = CACHED[type] + if (!proc) { CACHED[type] = proc = compile([t0, r0, t1, r1]) } return proc(array0.shape.slice(0), array0.data, array0.stride, array0.offset | 0, array1.data, array1.stride, array1.offset | 0) + } + }, + + fdTemplate2: function(compile) { + var CACHED = {} + return function fdTemplate2_cwise_thunk(array0, array1, array4) { + var t0 = array0.dtype, r0 = array0.order, t1 = array1.dtype, r1 = array1.order, t4 = array4.dtype, r4 = array4.order, type = [t0, r0.join(), t1, r1.join(), t4, r4.join()].join(), proc = CACHED[type] + if (!proc) { CACHED[type] = proc = compile([t0, r0, t1, r1, t4, r4]) } return proc(array0.shape.slice(0), array0.data, array0.stride, array0.offset | 0, array1.data, array1.stride, array1.offset | 0, array4.data, array4.stride, array4.offset | 0) + } + }, +} + +function createThunk(proc) { + var thunk = CACHED_thunk[proc.funcName] + return thunk(compile.bind(undefined, proc)) +} + +function compile(proc) { + return CACHED_CWiseOp[proc.funcName] +} + +function cwiseCompiler(user_args) { + return createThunk({ + funcName: user_args.funcName + }) +} + + +var TEMPLATE_CACHE = {} +var GRADIENT_CACHE = {} + +var EmptyProc = { + body: "", + args: [], + thisVars: [], + localVars: [] +} + +var centralDiff = cwiseCompiler({ + funcName: 'cdiff' +}) + +var zeroOut = cwiseCompiler({ + funcName: 'zero' +}) + +function generateTemplate(d) { + if(d in TEMPLATE_CACHE) { + return TEMPLATE_CACHE[d] + } + return TEMPLATE_CACHE[d] = cwiseCompiler({ + funcName: 'fdTemplate' + d + }) +} + +function CACHED_link(diff, zero, grad1, grad2) { + return function(dst, src) { + var s = src.shape.slice() + if (1 && s[0] > 2 && s[1] > 2) { + grad2( + src + .pick(-1, -1) + .lo(1, 1) + .hi(s[0] - 2, s[1] - 2), + dst + .pick(-1, -1, 0) + .lo(1, 1) + .hi(s[0] - 2, s[1] - 2), + dst + .pick(-1, -1, 1) + .lo(1, 1) + .hi(s[0] - 2, s[1] - 2) + ) + } + if (1 && s[1] > 2) { + grad1( + src + .pick(0, -1) + .lo(1) + .hi(s[1] - 2), + dst + .pick(0, -1, 1) + .lo(1) + .hi(s[1] - 2) + ) + zero( + dst + .pick(0, -1, 0) + .lo(1) + .hi(s[1] - 2) + ) + } + if (1 && s[1] > 2) { + grad1( + src + .pick(s[0] - 1, -1) + .lo(1) + .hi(s[1] - 2), + dst + .pick(s[0] - 1, -1, 1) + .lo(1) + .hi(s[1] - 2) + ) + zero( + dst + .pick(s[0] - 1, -1, 0) + .lo(1) + .hi(s[1] - 2) + ) + } + if (1 && s[0] > 2) { + grad1( + src + .pick(-1, 0) + .lo(1) + .hi(s[0] - 2), + dst + .pick(-1, 0, 0) + .lo(1) + .hi(s[0] - 2) + ) + zero( + dst + .pick(-1, 0, 1) + .lo(1) + .hi(s[0] - 2) + ) + } + if (1 && s[0] > 2) { + grad1( + src + .pick(-1, s[1] - 1) + .lo(1) + .hi(s[0] - 2), + dst + .pick(-1, s[1] - 1, 0) + .lo(1) + .hi(s[0] - 2) + ) + zero( + dst + .pick(-1, s[1] - 1, 1) + .lo(1) + .hi(s[0] - 2) + ) + } + dst.set(0, 0, 0, 0) + dst.set(0, 0, 1, 0) + dst.set(s[0] - 1, 0, 0, 0) + dst.set(s[0] - 1, 0, 1, 0) + dst.set(0, s[1] - 1, 0, 0) + dst.set(0, s[1] - 1, 1, 0) + dst.set(s[0] - 1, s[1] - 1, 0, 0) + dst.set(s[0] - 1, s[1] - 1, 1, 0) + return dst + } +} + + +function generateGradient(boundaryConditions) { + var token = boundaryConditions.join() + var proc = GRADIENT_CACHE[token] + if(proc) { + return proc + } + + var d = boundaryConditions.length + + var linkArgs = [ centralDiff, zeroOut ] + for(var i=1; i<=d; ++i) { + linkArgs.push(generateTemplate(i)) + } + + var link = CACHED_link + + var proc = link.apply(void 0, linkArgs) + + GRADIENT_CACHE[token] = proc + return proc +} + +module.exports = function gradient(out, inp, bc) { + if(!Array.isArray(bc)) { + if(typeof bc === 'string') { + bc = dup(inp.dimension, bc) + } else { + bc = dup(inp.dimension, 'clamp') + } + } + if(inp.size === 0) { + return out + } + if(inp.dimension === 0) { + out.set(0) + return out + } + var cached = generateGradient(bc) + return cached(out, inp) +} +},{"dup":65}],253:[function(_glvis_,module,exports){ +"use strict" + +function interp1d(arr, x) { + var ix = Math.floor(x) + , fx = x - ix + , s0 = 0 <= ix && ix < arr.shape[0] + , s1 = 0 <= ix+1 && ix+1 < arr.shape[0] + , w0 = s0 ? +arr.get(ix) : 0.0 + , w1 = s1 ? +arr.get(ix+1) : 0.0 + return (1.0-fx)*w0 + fx*w1 +} + +function interp2d(arr, x, y) { + var ix = Math.floor(x) + , fx = x - ix + , s0 = 0 <= ix && ix < arr.shape[0] + , s1 = 0 <= ix+1 && ix+1 < arr.shape[0] + , iy = Math.floor(y) + , fy = y - iy + , t0 = 0 <= iy && iy < arr.shape[1] + , t1 = 0 <= iy+1 && iy+1 < arr.shape[1] + , w00 = s0&&t0 ? arr.get(ix ,iy ) : 0.0 + , w01 = s0&&t1 ? arr.get(ix ,iy+1) : 0.0 + , w10 = s1&&t0 ? arr.get(ix+1,iy ) : 0.0 + , w11 = s1&&t1 ? arr.get(ix+1,iy+1) : 0.0 + return (1.0-fy) * ((1.0-fx)*w00 + fx*w10) + fy * ((1.0-fx)*w01 + fx*w11) +} + +function interp3d(arr, x, y, z) { + var ix = Math.floor(x) + , fx = x - ix + , s0 = 0 <= ix && ix < arr.shape[0] + , s1 = 0 <= ix+1 && ix+1 < arr.shape[0] + , iy = Math.floor(y) + , fy = y - iy + , t0 = 0 <= iy && iy < arr.shape[1] + , t1 = 0 <= iy+1 && iy+1 < arr.shape[1] + , iz = Math.floor(z) + , fz = z - iz + , u0 = 0 <= iz && iz < arr.shape[2] + , u1 = 0 <= iz+1 && iz+1 < arr.shape[2] + , w000 = s0&&t0&&u0 ? arr.get(ix,iy,iz) : 0.0 + , w010 = s0&&t1&&u0 ? arr.get(ix,iy+1,iz) : 0.0 + , w100 = s1&&t0&&u0 ? arr.get(ix+1,iy,iz) : 0.0 + , w110 = s1&&t1&&u0 ? arr.get(ix+1,iy+1,iz) : 0.0 + , w001 = s0&&t0&&u1 ? arr.get(ix,iy,iz+1) : 0.0 + , w011 = s0&&t1&&u1 ? arr.get(ix,iy+1,iz+1) : 0.0 + , w101 = s1&&t0&&u1 ? arr.get(ix+1,iy,iz+1) : 0.0 + , w111 = s1&&t1&&u1 ? arr.get(ix+1,iy+1,iz+1) : 0.0 + return (1.0-fz) * ((1.0-fy) * ((1.0-fx)*w000 + fx*w100) + fy * ((1.0-fx)*w010 + fx*w110)) + fz * ((1.0-fy) * ((1.0-fx)*w001 + fx*w101) + fy * ((1.0-fx)*w011 + fx*w111)) +} + +function interpNd(arr) { + var d = arr.shape.length|0 + , ix = new Array(d) + , fx = new Array(d) + , s0 = new Array(d) + , s1 = new Array(d) + , i, t + for(i=0; i 0;) { + if (j1 < 64) { + s0 = j1 + j1 = 0 + } else { + s0 = 64 + j1 -= 64 + } + for (var j2 = SS[1] | 0; j2 > 0;) { + if (j2 < 64) { + s1 = j2 + j2 = 0 + } else { + s1 = 64 + j2 -= 64 + } + p0 = (offset0 + j1 * t0p0 + j2 * t0p1) + p1 = (offset1 + j1 * t1p0 + j2 * t1p1) + var i0 = 0, i1 = 0, i2 = 0, d0s0 = t0p2, d0s1 = (t0p0 - s2 * t0p2), d0s2 = (t0p1 - s0 * t0p0), d1s0 = t1p2, d1s1 = (t1p0 - s2 * t1p2), d1s2 = (t1p1 - s0 * t1p0) + for (i2 = 0; i2 < s1; ++i2) { + for (i1 = 0; i1 < s0; ++i1) { + for (i0 = 0; i0 < s2; ++i0) { + a0[p0] = a1[p1] * Y0 + p0 += d0s0 + p1 += d1s0 + } + p0 += d0s1 + p1 += d1s1 + } + p0 += d0s2 + p1 += d1s2 + } + } + } + } + }, + 'float32,1,0,float32,1,0': function () { + return function assign_cwise_loop_1s0m2f32(SS, a0, t0, p0, a1, t1, p1) { + var s0 = SS[0], s1 = SS[1], t0p0 = t0[0], t0p1 = t0[1], t1p0 = t1[0], t1p1 = t1[1] + p0 |= 0 + p1 |= 0 + var i0 = 0, i1 = 0, d0s0 = t0p1, d0s1 = (t0p0 - s1 * t0p1), d1s0 = t1p1, d1s1 = (t1p0 - s1 * t1p1) + for (i1 = 0; i1 < s0; ++i1) { + for (i0 = 0; i0 < s1; ++i0) { + a0[p0] = a1[p1] + p0 += d0s0 + p1 += d1s0 + } + p0 += d0s1 + p1 += d1s1 + } + } + }, + 'float32,1,0,float32,0,1': function () { + return function assign_cwise_loop_1s0m0f32(SS, a0, t0, p0, a1, t1, p1) { + var s0 = SS[0], s1 = SS[1], t0p0 = t0[0], t0p1 = t0[1], t1p0 = t1[0], t1p1 = t1[1] + p0 |= 0 + p1 |= 0 + var offset0 = p0 + var offset1 = p1 + for (var j0 = SS[1] | 0; j0 > 0;) { + if (j0 < 64) { + s1 = j0 + j0 = 0 + } else { + s1 = 64 + j0 -= 64 + } + for (var j1 = SS[0] | 0; j1 > 0;) { + if (j1 < 64) { + s0 = j1 + j1 = 0 + } else { + s0 = 64 + j1 -= 64 + } + p0 = (offset0 + j0 * t0p1 + j1 * t0p0) + p1 = (offset1 + j0 * t1p1 + j1 * t1p0) + var i0 = 0, i1 = 0, d0s0 = t0p1, d0s1 = (t0p0 - s1 * t0p1), d1s0 = t1p1, d1s1 = (t1p0 - s1 * t1p1) + for (i1 = 0; i1 < s0; ++i1) { + for (i0 = 0; i0 < s1; ++i0) { + a0[p0] = a1[p1] + p0 += d0s0 + p1 += d1s0 + } + p0 += d0s1 + p1 += d1s1 + } + } + } + } + }, + 'uint8,2,0,1,uint8,1,2,0': function () { + return function assign_cwise_loop_2s0s1m0u8(SS, a0, t0, p0, a1, t1, p1) { + var s0 = SS[0], s1 = SS[1], s2 = SS[2], t0p0 = t0[0], t0p1 = t0[1], t0p2 = t0[2], t1p0 = t1[0], t1p1 = t1[1], t1p2 = t1[2] + p0 |= 0 + p1 |= 0 + var offset0 = p0 + var offset1 = p1 + for (var j0 = SS[2] | 0; j0 > 0;) { + if (j0 < 64) { + s2 = j0 + j0 = 0 + } else { + s2 = 64 + j0 -= 64 + } + for (var j1 = SS[0] | 0; j1 > 0;) { + if (j1 < 64) { + s0 = j1 + j1 = 0 + } else { + s0 = 64 + j1 -= 64 + } + for (var j2 = SS[1] | 0; j2 > 0;) { + if (j2 < 64) { + s1 = j2 + j2 = 0 + } else { + s1 = 64 + j2 -= 64 + } + p0 = (offset0 + j0 * t0p2 + j1 * t0p0 + j2 * t0p1) + p1 = (offset1 + j0 * t1p2 + j1 * t1p0 + j2 * t1p1) + var i0 = 0, i1 = 0, i2 = 0, d0s0 = t0p2, d0s1 = (t0p0 - s2 * t0p2), d0s2 = (t0p1 - s0 * t0p0), d1s0 = t1p2, d1s1 = (t1p0 - s2 * t1p2), d1s2 = (t1p1 - s0 * t1p0) + for (i2 = 0; i2 < s1; ++i2) { + for (i1 = 0; i1 < s0; ++i1) { + for (i0 = 0; i0 < s2; ++i0) { + a0[p0] = a1[p1] + p0 += d0s0 + p1 += d1s0 + } + p0 += d0s1 + p1 += d1s1 + } + p0 += d0s2 + p1 += d1s2 + } + } + } + } + } + }, + 'uint8,2,0,1,array,2,0,1': function () { + return function assign_cwise_loop_2s0s1m3u8a(SS, a0, t0, p0, a1, t1, p1) { + var s0 = SS[0], s1 = SS[1], s2 = SS[2], t0p0 = t0[0], t0p1 = t0[1], t0p2 = t0[2], t1p0 = t1[0], t1p1 = t1[1], t1p2 = t1[2] + p0 |= 0 + p1 |= 0 + var i0 = 0, i1 = 0, i2 = 0, d0s0 = t0p2, d0s1 = (t0p0 - s2 * t0p2), d0s2 = (t0p1 - s0 * t0p0), d1s0 = t1p2, d1s1 = (t1p0 - s2 * t1p2), d1s2 = (t1p1 - s0 * t1p0) + for (i2 = 0; i2 < s1; ++i2) { + for (i1 = 0; i1 < s0; ++i1) { + for (i0 = 0; i0 < s2; ++i0) { + a0[p0] = a1[p1] + p0 += d0s0 + p1 += d1s0 + } + p0 += d0s1 + p1 += d1s1 + } + p0 += d0s2 + p1 += d1s2 + } + } + }, +} + +//Generates a cwise operator +function generateCWiseOp(proc, typesig) { + var key = typesig.join(',') + var f = CACHED_CWiseOp[key] + return f() +} + +var compile = generateCWiseOp + +var CACHED_thunk = { + mul: function (compile) { + var CACHED = {} + return function mul_cwise_thunk(array0, array1, array2) { + var t0 = array0.dtype, + r0 = array0.order, + t1 = array1.dtype, + r1 = array1.order, + t2 = array2.dtype, + r2 = array2.order, + type = [t0, r0.join(), t1, r1.join(), t2, r2.join()].join(), + proc = CACHED[type] + if (!proc) { + CACHED[type] = proc = compile([t0, r0, t1, r1, t2, r2]) + } + return proc( + array0.shape.slice(0), + array0.data, + array0.stride, + array0.offset | 0, + array1.data, + array1.stride, + array1.offset | 0, + array2.data, + array2.stride, + array2.offset | 0 + ) + } + }, + muls: function (compile) { + var CACHED = {} + return function muls_cwise_thunk(array0, array1, scalar2) { + var t0 = array0.dtype, + r0 = array0.order, + t1 = array1.dtype, + r1 = array1.order, + type = [t0, r0.join(), t1, r1.join()].join(), + proc = CACHED[type] + if (!proc) { + CACHED[type] = proc = compile([t0, r0, t1, r1]) + } + return proc( + array0.shape.slice(0), + array0.data, + array0.stride, + array0.offset | 0, + array1.data, + array1.stride, + array1.offset | 0, + scalar2 + ) + } + }, + mulseq: function (compile) { + var CACHED = {} + return function mulseq_cwise_thunk(array0, scalar1) { + var t0 = array0.dtype, + r0 = array0.order, + type = [t0, r0.join()].join(), + proc = CACHED[type] + if (!proc) { + CACHED[type] = proc = compile([t0, r0]) + } + return proc(array0.shape.slice(0), array0.data, array0.stride, array0.offset | 0, scalar1) + } + }, + div: function (compile) { + var CACHED = {} + return function div_cwise_thunk(array0, array1, array2) { + var t0 = array0.dtype, + r0 = array0.order, + t1 = array1.dtype, + r1 = array1.order, + t2 = array2.dtype, + r2 = array2.order, + type = [t0, r0.join(), t1, r1.join(), t2, r2.join()].join(), + proc = CACHED[type] + if (!proc) { + CACHED[type] = proc = compile([t0, r0, t1, r1, t2, r2]) + } + return proc( + array0.shape.slice(0), + array0.data, + array0.stride, + array0.offset | 0, + array1.data, + array1.stride, + array1.offset | 0, + array2.data, + array2.stride, + array2.offset | 0 + ) + } + }, + divs: function (compile) { + var CACHED = {} + return function divs_cwise_thunk(array0, array1, scalar2) { + var t0 = array0.dtype, + r0 = array0.order, + t1 = array1.dtype, + r1 = array1.order, + type = [t0, r0.join(), t1, r1.join()].join(), + proc = CACHED[type] + if (!proc) { + CACHED[type] = proc = compile([t0, r0, t1, r1]) + } + return proc( + array0.shape.slice(0), + array0.data, + array0.stride, + array0.offset | 0, + array1.data, + array1.stride, + array1.offset | 0, + scalar2 + ) + } + }, + divseq: function (compile) { + var CACHED = {} + return function divseq_cwise_thunk(array0, scalar1) { + var t0 = array0.dtype, + r0 = array0.order, + type = [t0, r0.join()].join(), + proc = CACHED[type] + if (!proc) { + CACHED[type] = proc = compile([t0, r0]) + } + return proc(array0.shape.slice(0), array0.data, array0.stride, array0.offset | 0, scalar1) + } + }, + assign: function (compile) { + var CACHED = {} + return function assign_cwise_thunk(array0, array1) { + var t0 = array0.dtype, + r0 = array0.order, + t1 = array1.dtype, + r1 = array1.order, + type = [t0, r0.join(), t1, r1.join()].join(), + proc = CACHED[type] + if (!proc) { + CACHED[type] = proc = compile([t0, r0, t1, r1]) + } + return proc( + array0.shape.slice(0), + array0.data, + array0.stride, + array0.offset | 0, + array1.data, + array1.stride, + array1.offset | 0 + ) + } + }, +} + +function createThunk(proc) { + var thunk = CACHED_thunk[proc.funcName] + return thunk(compile.bind(undefined, proc)) +} + +function makeOp(user_args) { + return createThunk({ + funcName: user_args.funcName + }) +} + +var assign_ops = { + mul: "*", + div: "/", +} +;(function(){ + for(var id in assign_ops) { + exports[id] = makeOp({ + funcName: id + }) + exports[id+"s"] = makeOp({ + funcName: id+"s" + }) + exports[id+"seq"] = makeOp({ + funcName: id+"seq" + }) + } +})(); + +exports.assign = makeOp({ + funcName: "assign" }) + +},{}],255:[function(_glvis_,module,exports){ +"use strict" + +var ndarray = _glvis_("ndarray") +var do_convert = _glvis_("./doConvert.js") + +module.exports = function convert(arr, result) { + var shape = [], c = arr, sz = 1 + while(Array.isArray(c)) { + shape.push(c.length) + sz *= c.length + c = c[0] + } + if(shape.length === 0) { + return ndarray() + } + if(!result) { + result = ndarray(new Float64Array(sz), shape) + } + do_convert(result, arr) + return result +} + +},{"./doConvert.js":256,"ndarray":259}],256:[function(_glvis_,module,exports){ +"use strict" + +function CwiseOp() { + return function (SS, a0, t0, p0, Y0) { + var s0 = SS[0], + s1 = SS[1], + s2 = SS[2], + t0p0 = t0[0], + t0p1 = t0[1], + t0p2 = t0[2], + index = [0, 0, 0]; + p0 |= 0; + var i0 = 0, + i1 = 0, + i2 = 0, + d0s0 = t0p2, + d0s1 = t0p1 - s2 * t0p2, + d0s2 = t0p0 - s1 * t0p1; + for (i2 = 0; i2 < s0; ++i2) { + for (i1 = 0; i1 < s1; ++i1) { + for (i0 = 0; i0 < s2; ++i0) { + { + var _inline_1_v = Y0, + _inline_1_i; + for ( + _inline_1_i = 0; + _inline_1_i < index.length - 1; + ++_inline_1_i + ) { + _inline_1_v = _inline_1_v[index[_inline_1_i]]; + } + a0[p0] = _inline_1_v[index[index.length - 1]]; + } + p0 += d0s0; + ++index[2]; + } + p0 += d0s1; + index[2] -= s2; + ++index[1]; + } + p0 += d0s2; + index[1] -= s1; + ++index[0]; + } + }; +} + +//Generates a cwise operator +function generateCWiseOp() { + return CwiseOp() +} + +var compile = generateCWiseOp + +function thunk(compile) { + var CACHED = {}; + return function convert_cwise_thunk(array0, scalar1) { + var t0 = array0.dtype, + r0 = array0.order, + type = [t0, r0.join()].join(), + proc = CACHED[type]; + if (!proc) { + CACHED[type] = proc = compile([t0, r0]); + } + return proc( + array0.shape.slice(0), + array0.data, + array0.stride, + array0.offset | 0, + scalar1 + ); + }; +} + +function createThunk(proc) { + return thunk(compile.bind(undefined, proc)) +} + +function compileCwise(user_args) { + return createThunk({ + funcName: user_args.funcName + }) +} + +module.exports = compileCwise({ + funcName: "convert" +}); + +},{}],257:[function(_glvis_,module,exports){ +"use strict" + +var pool = _glvis_("typedarray-pool") + +function getMallocFree(dtype) { + switch(dtype) { + case "uint32": + return [pool.mallocUint32, pool.freeUint32] + default: + return null + } +} + +var CACHED_insertionSort = { + "uint32,1,0": function (malloc, free) { + return function ndarrayInsertionSort1d0uint32(left, right, data, offset, s0, s1, n0, n1, d1, e1, f1) { + var i, + j, + cptr, + ptr = left * s0 + offset, + i1, + scratch = malloc(n1), + dptr, + sptr, + a, + b + for (i = left + 1; i <= right; ++i) { + j = i + ptr += s0 + cptr = ptr + dptr = 0 + sptr = ptr + for (i1 = 0; i1 < n1; ++i1) { + scratch[dptr++] = data[sptr] + sptr += d1 + } + __g: while (j-- > left) { + dptr = 0 + sptr = cptr - s0 + __l: for (i1 = 0; i1 < n1; ++i1) { + a = data[sptr] + b = scratch[dptr] + if (a < b) { + break __g + } + if (a > b) { + break __l + } + sptr += e1 + dptr += f1 + } + dptr = cptr + sptr = cptr - s0 + for (i1 = 0; i1 < n1; ++i1) { + data[dptr] = data[sptr] + dptr += d1 + sptr += d1 + } + cptr -= s0 + } + dptr = cptr + sptr = 0 + for (i1 = 0; i1 < n1; ++i1) { + data[dptr] = scratch[sptr++] + dptr += d1 + } + } + free(scratch) + } + }, +} + +function createInsertionSort(order, dtype) { + var allocator = getMallocFree(dtype) + var key = [dtype, order].join(',') + var result = CACHED_insertionSort[key] + + if(allocator) { + return result(allocator[0], allocator[1]) + } else { + return result() + } +} + +var CACHED_quickSort = { + "uint32,1,0": function (insertionSort, malloc, free) { + return function ndarrayQuickSort1d0uint32(left, right, data, offset, s0, s1, n0, n1, d1, e1, f1) { + var sixth = ((right - left + 1) / 6) | 0, + index1 = left + sixth, + index5 = right - sixth, + index3 = (left + right) >> 1, + index2 = index3 - sixth, + index4 = index3 + sixth, + el1 = index1, + el2 = index2, + el3 = index3, + el4 = index4, + el5 = index5, + less = left + 1, + great = right - 1, + pivots_are_equal = true, + tmp, + tmp0, + x, + y, + z, + k, + ptr0, + ptr1, + ptr2, + comp_pivot1 = 0, + comp_pivot2 = 0, + comp = 0, + i1, + b_ptr0, + b_ptr1, + b_ptr2, + b_ptr3, + b_ptr4, + b_ptr5, + b_ptr6, + b_ptr7, + ptr3, + ptr4, + ptr5, + ptr6, + ptr7, + pivot_ptr, + ptr_shift, + elementSize = n1, + pivot1 = malloc(elementSize), + pivot2 = malloc(elementSize) + b_ptr0 = s0 * el1 + b_ptr1 = s0 * el2 + ptr_shift = offset + __l1: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el1 + el1 = el2 + el2 = tmp0 + break __l1 + } + if (comp < 0) { + break __l1 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el4 + b_ptr1 = s0 * el5 + ptr_shift = offset + __l2: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el4 + el4 = el5 + el5 = tmp0 + break __l2 + } + if (comp < 0) { + break __l2 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el1 + b_ptr1 = s0 * el3 + ptr_shift = offset + __l3: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el1 + el1 = el3 + el3 = tmp0 + break __l3 + } + if (comp < 0) { + break __l3 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el2 + b_ptr1 = s0 * el3 + ptr_shift = offset + __l4: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el2 + el2 = el3 + el3 = tmp0 + break __l4 + } + if (comp < 0) { + break __l4 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el1 + b_ptr1 = s0 * el4 + ptr_shift = offset + __l5: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el1 + el1 = el4 + el4 = tmp0 + break __l5 + } + if (comp < 0) { + break __l5 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el3 + b_ptr1 = s0 * el4 + ptr_shift = offset + __l6: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el3 + el3 = el4 + el4 = tmp0 + break __l6 + } + if (comp < 0) { + break __l6 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el2 + b_ptr1 = s0 * el5 + ptr_shift = offset + __l7: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el2 + el2 = el5 + el5 = tmp0 + break __l7 + } + if (comp < 0) { + break __l7 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el2 + b_ptr1 = s0 * el3 + ptr_shift = offset + __l8: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el2 + el2 = el3 + el3 = tmp0 + break __l8 + } + if (comp < 0) { + break __l8 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el4 + b_ptr1 = s0 * el5 + ptr_shift = offset + __l9: for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + comp = data[ptr0] - data[ptr1] + if (comp > 0) { + tmp0 = el4 + el4 = el5 + el5 = tmp0 + break __l9 + } + if (comp < 0) { + break __l9 + } + ptr_shift += e1 + } + b_ptr0 = s0 * el1 + b_ptr1 = s0 * el2 + b_ptr2 = s0 * el3 + b_ptr3 = s0 * el4 + b_ptr4 = s0 * el5 + b_ptr5 = s0 * index1 + b_ptr6 = s0 * index3 + b_ptr7 = s0 * index5 + pivot_ptr = 0 + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + ptr2 = b_ptr2 + ptr_shift + ptr3 = b_ptr3 + ptr_shift + ptr4 = b_ptr4 + ptr_shift + ptr5 = b_ptr5 + ptr_shift + ptr6 = b_ptr6 + ptr_shift + ptr7 = b_ptr7 + ptr_shift + pivot1[pivot_ptr] = data[ptr1] + pivot2[pivot_ptr] = data[ptr3] + pivots_are_equal = pivots_are_equal && pivot1[pivot_ptr] === pivot2[pivot_ptr] + x = data[ptr0] + y = data[ptr2] + z = data[ptr4] + data[ptr5] = x + data[ptr6] = y + data[ptr7] = z + ++pivot_ptr + ptr_shift += d1 + } + b_ptr0 = s0 * index2 + b_ptr1 = s0 * left + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + data[ptr0] = data[ptr1] + ptr_shift += d1 + } + b_ptr0 = s0 * index4 + b_ptr1 = s0 * right + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + data[ptr0] = data[ptr1] + ptr_shift += d1 + } + if (pivots_are_equal) { + for (k = less; k <= great; ++k) { + ptr0 = offset + k * s0 + pivot_ptr = 0 + __l10: for (i1 = 0; i1 < n1; ++i1) { + comp = data[ptr0] - pivot1[pivot_ptr] + if (comp !== 0) { + break __l10 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp === 0) { + continue + } + if (comp < 0) { + if (k !== less) { + b_ptr0 = s0 * k + b_ptr1 = s0 * less + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = tmp + ptr_shift += d1 + } + } + ++less + } else { + while (true) { + ptr0 = offset + great * s0 + pivot_ptr = 0 + __l11: for (i1 = 0; i1 < n1; ++i1) { + comp = data[ptr0] - pivot1[pivot_ptr] + if (comp !== 0) { + break __l11 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp > 0) { + great-- + } else if (comp < 0) { + b_ptr0 = s0 * k + b_ptr1 = s0 * less + b_ptr2 = s0 * great + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + ptr2 = b_ptr2 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = data[ptr2] + data[ptr2] = tmp + ptr_shift += d1 + } + ++less + --great + break + } else { + b_ptr0 = s0 * k + b_ptr1 = s0 * great + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = tmp + ptr_shift += d1 + } + --great + break + } + } + } + } + } else { + for (k = less; k <= great; ++k) { + ptr0 = offset + k * s0 + pivot_ptr = 0 + __l12: for (i1 = 0; i1 < n1; ++i1) { + comp_pivot1 = data[ptr0] - pivot1[pivot_ptr] + if (comp_pivot1 !== 0) { + break __l12 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp_pivot1 < 0) { + if (k !== less) { + b_ptr0 = s0 * k + b_ptr1 = s0 * less + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = tmp + ptr_shift += d1 + } + } + ++less + } else { + ptr0 = offset + k * s0 + pivot_ptr = 0 + __l13: for (i1 = 0; i1 < n1; ++i1) { + comp_pivot2 = data[ptr0] - pivot2[pivot_ptr] + if (comp_pivot2 !== 0) { + break __l13 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp_pivot2 > 0) { + while (true) { + ptr0 = offset + great * s0 + pivot_ptr = 0 + __l14: for (i1 = 0; i1 < n1; ++i1) { + comp = data[ptr0] - pivot2[pivot_ptr] + if (comp !== 0) { + break __l14 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp > 0) { + if (--great < k) { + break + } + continue + } else { + ptr0 = offset + great * s0 + pivot_ptr = 0 + __l15: for (i1 = 0; i1 < n1; ++i1) { + comp = data[ptr0] - pivot1[pivot_ptr] + if (comp !== 0) { + break __l15 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp < 0) { + b_ptr0 = s0 * k + b_ptr1 = s0 * less + b_ptr2 = s0 * great + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + ptr2 = b_ptr2 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = data[ptr2] + data[ptr2] = tmp + ptr_shift += d1 + } + ++less + --great + } else { + b_ptr0 = s0 * k + b_ptr1 = s0 * great + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = tmp + ptr_shift += d1 + } + --great + } + break + } + } + } + } + } + } + b_ptr0 = s0 * left + b_ptr1 = s0 * (less - 1) + pivot_ptr = 0 + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + data[ptr0] = data[ptr1] + data[ptr1] = pivot1[pivot_ptr] + ++pivot_ptr + ptr_shift += d1 + } + b_ptr0 = s0 * right + b_ptr1 = s0 * (great + 1) + pivot_ptr = 0 + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + data[ptr0] = data[ptr1] + data[ptr1] = pivot2[pivot_ptr] + ++pivot_ptr + ptr_shift += d1 + } + if (less - 2 - left <= 32) { + insertionSort(left, less - 2, data, offset, s0, s1, n0, n1, d1, e1, f1) + } else { + ndarrayQuickSort1d0uint32(left, less - 2, data, offset, s0, s1, n0, n1, d1, e1, f1) + } + if (right - (great + 2) <= 32) { + insertionSort(great + 2, right, data, offset, s0, s1, n0, n1, d1, e1, f1) + } else { + ndarrayQuickSort1d0uint32(great + 2, right, data, offset, s0, s1, n0, n1, d1, e1, f1) + } + if (pivots_are_equal) { + free(pivot1) + free(pivot2) + return + } + if (less < index1 && great > index5) { + __l16: while (true) { + ptr0 = offset + less * s0 + pivot_ptr = 0 + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + if (data[ptr0] !== pivot1[pivot_ptr]) { + break __l16 + } + ++pivot_ptr + ptr0 += d1 + } + ++less + } + __l17: while (true) { + ptr0 = offset + great * s0 + pivot_ptr = 0 + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + if (data[ptr0] !== pivot2[pivot_ptr]) { + break __l17 + } + ++pivot_ptr + ptr0 += d1 + } + --great + } + for (k = less; k <= great; ++k) { + ptr0 = offset + k * s0 + pivot_ptr = 0 + __l18: for (i1 = 0; i1 < n1; ++i1) { + comp_pivot1 = data[ptr0] - pivot1[pivot_ptr] + if (comp_pivot1 !== 0) { + break __l18 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp_pivot1 === 0) { + if (k !== less) { + b_ptr0 = s0 * k + b_ptr1 = s0 * less + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = tmp + ptr_shift += d1 + } + } + ++less + } else { + ptr0 = offset + k * s0 + pivot_ptr = 0 + __l19: for (i1 = 0; i1 < n1; ++i1) { + comp_pivot2 = data[ptr0] - pivot2[pivot_ptr] + if (comp_pivot2 !== 0) { + break __l19 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp_pivot2 === 0) { + while (true) { + ptr0 = offset + great * s0 + pivot_ptr = 0 + __l20: for (i1 = 0; i1 < n1; ++i1) { + comp = data[ptr0] - pivot2[pivot_ptr] + if (comp !== 0) { + break __l20 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp === 0) { + if (--great < k) { + break + } + continue + } else { + ptr0 = offset + great * s0 + pivot_ptr = 0 + __l21: for (i1 = 0; i1 < n1; ++i1) { + comp = data[ptr0] - pivot1[pivot_ptr] + if (comp !== 0) { + break __l21 + } + pivot_ptr += f1 + ptr0 += e1 + } + if (comp < 0) { + b_ptr0 = s0 * k + b_ptr1 = s0 * less + b_ptr2 = s0 * great + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + ptr2 = b_ptr2 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = data[ptr2] + data[ptr2] = tmp + ptr_shift += d1 + } + ++less + --great + } else { + b_ptr0 = s0 * k + b_ptr1 = s0 * great + ptr_shift = offset + for (i1 = 0; i1 < n1; ++i1) { + ptr0 = b_ptr0 + ptr_shift + ptr1 = b_ptr1 + ptr_shift + tmp = data[ptr0] + data[ptr0] = data[ptr1] + data[ptr1] = tmp + ptr_shift += d1 + } + --great + } + break + } + } + } + } + } + } + free(pivot1) + free(pivot2) + if (great - less <= 32) { + insertionSort(less, great, data, offset, s0, s1, n0, n1, d1, e1, f1) + } else { + ndarrayQuickSort1d0uint32(less, great, data, offset, s0, s1, n0, n1, d1, e1, f1) + } + } + }, +} + +function createQuickSort(order, dtype, insertionSort) { + var allocator = getMallocFree(dtype) + var key = [dtype, order].join(',') + var result = CACHED_quickSort[key] + + if(order.length > 1 && allocator) { + return result(insertionSort, allocator[0], allocator[1]) + } else { + return result(insertionSort) + } +} + +var CACHED_sort = { + "uint32,1,0": function (insertionSort, quickSort) { + return function (array) { + var data = array.data, + offset = array.offset | 0, + shape = array.shape, + stride = array.stride, + s0 = stride[0] | 0, + n0 = shape[0] | 0, + s1 = stride[1] | 0, + n1 = shape[1] | 0, + d1 = s1, + e1 = s1, + f1 = 1 + if (n0 <= 32) { + insertionSort(0, n0 - 1, data, offset, s0, s1, n0, n1, d1, e1, f1) + } else { + quickSort(0, n0 - 1, data, offset, s0, s1, n0, n1, d1, e1, f1) + } + } + }, +} + +function compileSort(order, dtype) { + var key = [dtype, order].join(',') + var result = CACHED_sort[key] + + var insertionSort = createInsertionSort(order, dtype) + var quickSort = createQuickSort(order, dtype, insertionSort) + return result(insertionSort, quickSort) +} + +module.exports = compileSort +},{"typedarray-pool":308}],258:[function(_glvis_,module,exports){ +"use strict" + +var compile = _glvis_("./lib/compile_sort.js") +var CACHE = {} + +function sort(array) { + var order = array.order + var dtype = array.dtype + var typeSig = [order, dtype ] + var typeName = typeSig.join(":") + var compiled = CACHE[typeName] + if(!compiled) { + CACHE[typeName] = compiled = compile(order, dtype) + } + compiled(array) + return array +} + +module.exports = sort +},{"./lib/compile_sort.js":257}],259:[function(_glvis_,module,exports){ +var isBuffer = _glvis_("is-buffer") + +var hasTypedArrays = ((typeof Float64Array) !== "undefined") + +function compare1st(a, b) { + return a[0] - b[0] +} + +function order() { + var stride = this.stride + var terms = new Array(stride.length) + var i + for(i=0; i= 0) { + d = i0 | 0 + b += c0 * d + a0 -= d + } + return new View(this.data, a0, c0, b) + } + proto.step = function step(i0) { + var a0 = this.shape[0], + b0 = this.stride[0], + c = this.offset, + d = 0, + ceil = Math.ceil + if (typeof i0 === "number") { + d = i0 | 0 + if (d < 0) { + c += b0 * (a0 - 1) + a0 = ceil(-a0 / d) + } else { + a0 = ceil(a0 / d) + } + b0 *= d + } + return new View(this.data, a0, b0, c) + } + proto.transpose = function transpose(i0) { + i0 = i0 === undefined ? 0 : i0 | 0 + var a = this.shape, + b = this.stride + return new View(this.data, a[i0], b[i0], this.offset) + } + proto.pick = function pick(i0) { + var a = [], + b = [], + c = this.offset + if (typeof i0 === "number" && i0 >= 0) { + c = (c + this.stride[0] * i0) | 0 + } else { + a.push(this.shape[0]) + b.push(this.stride[0]) + } + var ctor = CTOR_LIST[a.length + 1] + return ctor(this.data, a, b, c) + } + return function construct(data, shape, stride, offset) { + return new View(data, shape[0], stride[0], offset) + } + }, + 2: function (dtype, CTOR_LIST, ORDER) { + function View(a, b0, b1, c0, c1, d) { + this.data = a + this.shape = [b0, b1] + this.stride = [c0, c1] + this.offset = d | 0 + } + var proto = View.prototype + proto.dtype = dtype + proto.dimension = 2 + Object.defineProperty(proto, "size", { + get: function size() { + return this.shape[0] * this.shape[1] + }, + }) + Object.defineProperty(proto, "order", { + get: function order() { + return Math.abs(this.stride[0]) > Math.abs(this.stride[1]) ? [1, 0] : [0, 1] + }, + }) + proto.set = function set(i0, i1, v) { + return dtype === "generic" + ? this.data.set(this.offset + this.stride[0] * i0 + this.stride[1] * i1, v) + : (this.data[this.offset + this.stride[0] * i0 + this.stride[1] * i1] = v) + } + proto.get = function get(i0, i1) { + return dtype === "generic" + ? this.data.get(this.offset + this.stride[0] * i0 + this.stride[1] * i1) + : this.data[this.offset + this.stride[0] * i0 + this.stride[1] * i1] + } + proto.index = function index(i0, i1) { + return this.offset + this.stride[0] * i0 + this.stride[1] * i1 + } + proto.hi = function hi(i0, i1) { + return new View( + this.data, + typeof i0 !== "number" || i0 < 0 ? this.shape[0] : i0 | 0, + typeof i1 !== "number" || i1 < 0 ? this.shape[1] : i1 | 0, + this.stride[0], + this.stride[1], + this.offset + ) + } + proto.lo = function lo(i0, i1) { + var b = this.offset, + d = 0, + a0 = this.shape[0], + a1 = this.shape[1], + c0 = this.stride[0], + c1 = this.stride[1] + if (typeof i0 === "number" && i0 >= 0) { + d = i0 | 0 + b += c0 * d + a0 -= d + } + if (typeof i1 === "number" && i1 >= 0) { + d = i1 | 0 + b += c1 * d + a1 -= d + } + return new View(this.data, a0, a1, c0, c1, b) + } + proto.step = function step(i0, i1) { + var a0 = this.shape[0], + a1 = this.shape[1], + b0 = this.stride[0], + b1 = this.stride[1], + c = this.offset, + d = 0, + ceil = Math.ceil + if (typeof i0 === "number") { + d = i0 | 0 + if (d < 0) { + c += b0 * (a0 - 1) + a0 = ceil(-a0 / d) + } else { + a0 = ceil(a0 / d) + } + b0 *= d + } + if (typeof i1 === "number") { + d = i1 | 0 + if (d < 0) { + c += b1 * (a1 - 1) + a1 = ceil(-a1 / d) + } else { + a1 = ceil(a1 / d) + } + b1 *= d + } + return new View(this.data, a0, a1, b0, b1, c) + } + proto.transpose = function transpose(i0, i1) { + i0 = i0 === undefined ? 0 : i0 | 0 + i1 = i1 === undefined ? 1 : i1 | 0 + var a = this.shape, + b = this.stride + return new View(this.data, a[i0], a[i1], b[i0], b[i1], this.offset) + } + proto.pick = function pick(i0, i1) { + var a = [], + b = [], + c = this.offset + if (typeof i0 === "number" && i0 >= 0) { + c = (c + this.stride[0] * i0) | 0 + } else { + a.push(this.shape[0]) + b.push(this.stride[0]) + } + if (typeof i1 === "number" && i1 >= 0) { + c = (c + this.stride[1] * i1) | 0 + } else { + a.push(this.shape[1]) + b.push(this.stride[1]) + } + var ctor = CTOR_LIST[a.length + 1] + return ctor(this.data, a, b, c) + } + return function construct(data, shape, stride, offset) { + return new View(data, shape[0], shape[1], stride[0], stride[1], offset) + } + }, + 3: function (dtype, CTOR_LIST, ORDER) { + function View(a, b0, b1, b2, c0, c1, c2, d) { + this.data = a + this.shape = [b0, b1, b2] + this.stride = [c0, c1, c2] + this.offset = d | 0 + } + var proto = View.prototype + proto.dtype = dtype + proto.dimension = 3 + Object.defineProperty(proto, "size", { + get: function size() { + return this.shape[0] * this.shape[1] * this.shape[2] + }, + }) + Object.defineProperty(proto, "order", { + get: function order() { + var s0 = Math.abs(this.stride[0]), + s1 = Math.abs(this.stride[1]), + s2 = Math.abs(this.stride[2]) + if (s0 > s1) { + if (s1 > s2) { + return [2, 1, 0] + } else if (s0 > s2) { + return [1, 2, 0] + } else { + return [1, 0, 2] + } + } else if (s0 > s2) { + return [2, 0, 1] + } else if (s2 > s1) { + return [0, 1, 2] + } else { + return [0, 2, 1] + } + }, + }) + proto.set = function set(i0, i1, i2, v) { + return dtype === "generic" + ? this.data.set(this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2, v) + : (this.data[this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2] = v) + } + proto.get = function get(i0, i1, i2) { + return dtype === "generic" + ? this.data.get(this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2) + : this.data[this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2] + } + proto.index = function index(i0, i1, i2) { + return this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2 + } + proto.hi = function hi(i0, i1, i2) { + return new View( + this.data, + typeof i0 !== "number" || i0 < 0 ? this.shape[0] : i0 | 0, + typeof i1 !== "number" || i1 < 0 ? this.shape[1] : i1 | 0, + typeof i2 !== "number" || i2 < 0 ? this.shape[2] : i2 | 0, + this.stride[0], + this.stride[1], + this.stride[2], + this.offset + ) + } + proto.lo = function lo(i0, i1, i2) { + var b = this.offset, + d = 0, + a0 = this.shape[0], + a1 = this.shape[1], + a2 = this.shape[2], + c0 = this.stride[0], + c1 = this.stride[1], + c2 = this.stride[2] + if (typeof i0 === "number" && i0 >= 0) { + d = i0 | 0 + b += c0 * d + a0 -= d + } + if (typeof i1 === "number" && i1 >= 0) { + d = i1 | 0 + b += c1 * d + a1 -= d + } + if (typeof i2 === "number" && i2 >= 0) { + d = i2 | 0 + b += c2 * d + a2 -= d + } + return new View(this.data, a0, a1, a2, c0, c1, c2, b) + } + proto.step = function step(i0, i1, i2) { + var a0 = this.shape[0], + a1 = this.shape[1], + a2 = this.shape[2], + b0 = this.stride[0], + b1 = this.stride[1], + b2 = this.stride[2], + c = this.offset, + d = 0, + ceil = Math.ceil + if (typeof i0 === "number") { + d = i0 | 0 + if (d < 0) { + c += b0 * (a0 - 1) + a0 = ceil(-a0 / d) + } else { + a0 = ceil(a0 / d) + } + b0 *= d + } + if (typeof i1 === "number") { + d = i1 | 0 + if (d < 0) { + c += b1 * (a1 - 1) + a1 = ceil(-a1 / d) + } else { + a1 = ceil(a1 / d) + } + b1 *= d + } + if (typeof i2 === "number") { + d = i2 | 0 + if (d < 0) { + c += b2 * (a2 - 1) + a2 = ceil(-a2 / d) + } else { + a2 = ceil(a2 / d) + } + b2 *= d + } + return new View(this.data, a0, a1, a2, b0, b1, b2, c) + } + proto.transpose = function transpose(i0, i1, i2) { + i0 = i0 === undefined ? 0 : i0 | 0 + i1 = i1 === undefined ? 1 : i1 | 0 + i2 = i2 === undefined ? 2 : i2 | 0 + var a = this.shape, + b = this.stride + return new View(this.data, a[i0], a[i1], a[i2], b[i0], b[i1], b[i2], this.offset) + } + proto.pick = function pick(i0, i1, i2) { + var a = [], + b = [], + c = this.offset + if (typeof i0 === "number" && i0 >= 0) { + c = (c + this.stride[0] * i0) | 0 + } else { + a.push(this.shape[0]) + b.push(this.stride[0]) + } + if (typeof i1 === "number" && i1 >= 0) { + c = (c + this.stride[1] * i1) | 0 + } else { + a.push(this.shape[1]) + b.push(this.stride[1]) + } + if (typeof i2 === "number" && i2 >= 0) { + c = (c + this.stride[2] * i2) | 0 + } else { + a.push(this.shape[2]) + b.push(this.stride[2]) + } + var ctor = CTOR_LIST[a.length + 1] + return ctor(this.data, a, b, c) + } + return function construct(data, shape, stride, offset) { + return new View(data, shape[0], shape[1], shape[2], stride[0], stride[1], stride[2], offset) + } + }, + 4: function (dtype, CTOR_LIST, ORDER) { + function View(a, b0, b1, b2, b3, c0, c1, c2, c3, d) { + this.data = a + this.shape = [b0, b1, b2, b3] + this.stride = [c0, c1, c2, c3] + this.offset = d | 0 + } + var proto = View.prototype + proto.dtype = dtype + proto.dimension = 4 + Object.defineProperty(proto, "size", { + get: function size() { + return this.shape[0] * this.shape[1] * this.shape[2] * this.shape[3] + }, + }) + Object.defineProperty(proto, "order", { get: ORDER }) + proto.set = function set(i0, i1, i2, i3, v) { + return dtype === "generic" + ? this.data.set(this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2 + this.stride[3] * i3, v) + : (this.data[this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2 + this.stride[3] * i3] = v) + } + proto.get = function get(i0, i1, i2, i3) { + return dtype === "generic" + ? this.data.get(this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2 + this.stride[3] * i3) + : this.data[this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2 + this.stride[3] * i3] + } + proto.index = function index(i0, i1, i2, i3) { + return this.offset + this.stride[0] * i0 + this.stride[1] * i1 + this.stride[2] * i2 + this.stride[3] * i3 + } + proto.hi = function hi(i0, i1, i2, i3) { + return new View( + this.data, + typeof i0 !== "number" || i0 < 0 ? this.shape[0] : i0 | 0, + typeof i1 !== "number" || i1 < 0 ? this.shape[1] : i1 | 0, + typeof i2 !== "number" || i2 < 0 ? this.shape[2] : i2 | 0, + typeof i3 !== "number" || i3 < 0 ? this.shape[3] : i3 | 0, + this.stride[0], + this.stride[1], + this.stride[2], + this.stride[3], + this.offset + ) + } + proto.lo = function lo(i0, i1, i2, i3) { + var b = this.offset, + d = 0, + a0 = this.shape[0], + a1 = this.shape[1], + a2 = this.shape[2], + a3 = this.shape[3], + c0 = this.stride[0], + c1 = this.stride[1], + c2 = this.stride[2], + c3 = this.stride[3] + if (typeof i0 === "number" && i0 >= 0) { + d = i0 | 0 + b += c0 * d + a0 -= d + } + if (typeof i1 === "number" && i1 >= 0) { + d = i1 | 0 + b += c1 * d + a1 -= d + } + if (typeof i2 === "number" && i2 >= 0) { + d = i2 | 0 + b += c2 * d + a2 -= d + } + if (typeof i3 === "number" && i3 >= 0) { + d = i3 | 0 + b += c3 * d + a3 -= d + } + return new View(this.data, a0, a1, a2, a3, c0, c1, c2, c3, b) + } + proto.step = function step(i0, i1, i2, i3) { + var a0 = this.shape[0], + a1 = this.shape[1], + a2 = this.shape[2], + a3 = this.shape[3], + b0 = this.stride[0], + b1 = this.stride[1], + b2 = this.stride[2], + b3 = this.stride[3], + c = this.offset, + d = 0, + ceil = Math.ceil + if (typeof i0 === "number") { + d = i0 | 0 + if (d < 0) { + c += b0 * (a0 - 1) + a0 = ceil(-a0 / d) + } else { + a0 = ceil(a0 / d) + } + b0 *= d + } + if (typeof i1 === "number") { + d = i1 | 0 + if (d < 0) { + c += b1 * (a1 - 1) + a1 = ceil(-a1 / d) + } else { + a1 = ceil(a1 / d) + } + b1 *= d + } + if (typeof i2 === "number") { + d = i2 | 0 + if (d < 0) { + c += b2 * (a2 - 1) + a2 = ceil(-a2 / d) + } else { + a2 = ceil(a2 / d) + } + b2 *= d + } + if (typeof i3 === "number") { + d = i3 | 0 + if (d < 0) { + c += b3 * (a3 - 1) + a3 = ceil(-a3 / d) + } else { + a3 = ceil(a3 / d) + } + b3 *= d + } + return new View(this.data, a0, a1, a2, a3, b0, b1, b2, b3, c) + } + proto.transpose = function transpose(i0, i1, i2, i3) { + i0 = i0 === undefined ? 0 : i0 | 0 + i1 = i1 === undefined ? 1 : i1 | 0 + i2 = i2 === undefined ? 2 : i2 | 0 + i3 = i3 === undefined ? 3 : i3 | 0 + var a = this.shape, + b = this.stride + return new View(this.data, a[i0], a[i1], a[i2], a[i3], b[i0], b[i1], b[i2], b[i3], this.offset) + } + proto.pick = function pick(i0, i1, i2, i3) { + var a = [], + b = [], + c = this.offset + if (typeof i0 === "number" && i0 >= 0) { + c = (c + this.stride[0] * i0) | 0 + } else { + a.push(this.shape[0]) + b.push(this.stride[0]) + } + if (typeof i1 === "number" && i1 >= 0) { + c = (c + this.stride[1] * i1) | 0 + } else { + a.push(this.shape[1]) + b.push(this.stride[1]) + } + if (typeof i2 === "number" && i2 >= 0) { + c = (c + this.stride[2] * i2) | 0 + } else { + a.push(this.shape[2]) + b.push(this.stride[2]) + } + if (typeof i3 === "number" && i3 >= 0) { + c = (c + this.stride[3] * i3) | 0 + } else { + a.push(this.shape[3]) + b.push(this.stride[3]) + } + var ctor = CTOR_LIST[a.length + 1] + return ctor(this.data, a, b, c) + } + return function construct(data, shape, stride, offset) { + return new View(data, shape[0], shape[1], shape[2], shape[3], stride[0], stride[1], stride[2], stride[3], offset) + } + }, + 5: function anonymous(dtype, CTOR_LIST, ORDER) { + function View(a, b0, b1, b2, b3, b4, c0, c1, c2, c3, c4, d) { + this.data = a + this.shape = [b0, b1, b2, b3, b4] + this.stride = [c0, c1, c2, c3, c4] + this.offset = d | 0 + } + var proto = View.prototype + proto.dtype = dtype + proto.dimension = 5 + Object.defineProperty(proto, "size", { + get: function size() { + return this.shape[0] * this.shape[1] * this.shape[2] * this.shape[3] * this.shape[4] + }, + }) + Object.defineProperty(proto, "order", { get: ORDER }) + proto.set = function set(i0, i1, i2, i3, i4, v) { + return dtype === "generic" + ? this.data.set( + this.offset + + this.stride[0] * i0 + + this.stride[1] * i1 + + this.stride[2] * i2 + + this.stride[3] * i3 + + this.stride[4] * i4, + v + ) + : (this.data[ + this.offset + + this.stride[0] * i0 + + this.stride[1] * i1 + + this.stride[2] * i2 + + this.stride[3] * i3 + + this.stride[4] * i4 + ] = v) + } + proto.get = function get(i0, i1, i2, i3, i4) { + return dtype === "generic" + ? this.data.get( + this.offset + + this.stride[0] * i0 + + this.stride[1] * i1 + + this.stride[2] * i2 + + this.stride[3] * i3 + + this.stride[4] * i4 + ) + : this.data[ + this.offset + + this.stride[0] * i0 + + this.stride[1] * i1 + + this.stride[2] * i2 + + this.stride[3] * i3 + + this.stride[4] * i4 + ] + } + proto.index = function index(i0, i1, i2, i3, i4) { + return ( + this.offset + + this.stride[0] * i0 + + this.stride[1] * i1 + + this.stride[2] * i2 + + this.stride[3] * i3 + + this.stride[4] * i4 + ) + } + proto.hi = function hi(i0, i1, i2, i3, i4) { + return new View( + this.data, + typeof i0 !== "number" || i0 < 0 ? this.shape[0] : i0 | 0, + typeof i1 !== "number" || i1 < 0 ? this.shape[1] : i1 | 0, + typeof i2 !== "number" || i2 < 0 ? this.shape[2] : i2 | 0, + typeof i3 !== "number" || i3 < 0 ? this.shape[3] : i3 | 0, + typeof i4 !== "number" || i4 < 0 ? this.shape[4] : i4 | 0, + this.stride[0], + this.stride[1], + this.stride[2], + this.stride[3], + this.stride[4], + this.offset + ) + } + proto.lo = function lo(i0, i1, i2, i3, i4) { + var b = this.offset, + d = 0, + a0 = this.shape[0], + a1 = this.shape[1], + a2 = this.shape[2], + a3 = this.shape[3], + a4 = this.shape[4], + c0 = this.stride[0], + c1 = this.stride[1], + c2 = this.stride[2], + c3 = this.stride[3], + c4 = this.stride[4] + if (typeof i0 === "number" && i0 >= 0) { + d = i0 | 0 + b += c0 * d + a0 -= d + } + if (typeof i1 === "number" && i1 >= 0) { + d = i1 | 0 + b += c1 * d + a1 -= d + } + if (typeof i2 === "number" && i2 >= 0) { + d = i2 | 0 + b += c2 * d + a2 -= d + } + if (typeof i3 === "number" && i3 >= 0) { + d = i3 | 0 + b += c3 * d + a3 -= d + } + if (typeof i4 === "number" && i4 >= 0) { + d = i4 | 0 + b += c4 * d + a4 -= d + } + return new View(this.data, a0, a1, a2, a3, a4, c0, c1, c2, c3, c4, b) + } + proto.step = function step(i0, i1, i2, i3, i4) { + var a0 = this.shape[0], + a1 = this.shape[1], + a2 = this.shape[2], + a3 = this.shape[3], + a4 = this.shape[4], + b0 = this.stride[0], + b1 = this.stride[1], + b2 = this.stride[2], + b3 = this.stride[3], + b4 = this.stride[4], + c = this.offset, + d = 0, + ceil = Math.ceil + if (typeof i0 === "number") { + d = i0 | 0 + if (d < 0) { + c += b0 * (a0 - 1) + a0 = ceil(-a0 / d) + } else { + a0 = ceil(a0 / d) + } + b0 *= d + } + if (typeof i1 === "number") { + d = i1 | 0 + if (d < 0) { + c += b1 * (a1 - 1) + a1 = ceil(-a1 / d) + } else { + a1 = ceil(a1 / d) + } + b1 *= d + } + if (typeof i2 === "number") { + d = i2 | 0 + if (d < 0) { + c += b2 * (a2 - 1) + a2 = ceil(-a2 / d) + } else { + a2 = ceil(a2 / d) + } + b2 *= d + } + if (typeof i3 === "number") { + d = i3 | 0 + if (d < 0) { + c += b3 * (a3 - 1) + a3 = ceil(-a3 / d) + } else { + a3 = ceil(a3 / d) + } + b3 *= d + } + if (typeof i4 === "number") { + d = i4 | 0 + if (d < 0) { + c += b4 * (a4 - 1) + a4 = ceil(-a4 / d) + } else { + a4 = ceil(a4 / d) + } + b4 *= d + } + return new View(this.data, a0, a1, a2, a3, a4, b0, b1, b2, b3, b4, c) + } + proto.transpose = function transpose(i0, i1, i2, i3, i4) { + i0 = i0 === undefined ? 0 : i0 | 0 + i1 = i1 === undefined ? 1 : i1 | 0 + i2 = i2 === undefined ? 2 : i2 | 0 + i3 = i3 === undefined ? 3 : i3 | 0 + i4 = i4 === undefined ? 4 : i4 | 0 + var a = this.shape, + b = this.stride + return new View(this.data, a[i0], a[i1], a[i2], a[i3], a[i4], b[i0], b[i1], b[i2], b[i3], b[i4], this.offset) + } + proto.pick = function pick(i0, i1, i2, i3, i4) { + var a = [], + b = [], + c = this.offset + if (typeof i0 === "number" && i0 >= 0) { + c = (c + this.stride[0] * i0) | 0 + } else { + a.push(this.shape[0]) + b.push(this.stride[0]) + } + if (typeof i1 === "number" && i1 >= 0) { + c = (c + this.stride[1] * i1) | 0 + } else { + a.push(this.shape[1]) + b.push(this.stride[1]) + } + if (typeof i2 === "number" && i2 >= 0) { + c = (c + this.stride[2] * i2) | 0 + } else { + a.push(this.shape[2]) + b.push(this.stride[2]) + } + if (typeof i3 === "number" && i3 >= 0) { + c = (c + this.stride[3] * i3) | 0 + } else { + a.push(this.shape[3]) + b.push(this.stride[3]) + } + if (typeof i4 === "number" && i4 >= 0) { + c = (c + this.stride[4] * i4) | 0 + } else { + a.push(this.shape[4]) + b.push(this.stride[4]) + } + var ctor = CTOR_LIST[a.length + 1] + return ctor(this.data, a, b, c) + } + return function construct(data, shape, stride, offset) { + return new View( + data, + shape[0], + shape[1], + shape[2], + shape[3], + shape[4], + stride[0], + stride[1], + stride[2], + stride[3], + stride[4], + offset + ) + } + }, +} + + +function compileConstructor(inType, inDimension) { + var dKey = inDimension === -1 ? 'T' : String(inDimension) + + var procedure = allFns[dKey] + if(inDimension === -1) { + return procedure(inType) + } else if(inDimension === 0) { + return procedure(inType, CACHED_CONSTRUCTORS[inType][0]) + } + return procedure(inType, CACHED_CONSTRUCTORS[inType], order) +} + +function arrayDType(data) { + if(isBuffer(data)) { + return "buffer" + } + if(hasTypedArrays) { + switch(Object.prototype.toString.call(data)) { + case "[object Float64Array]": + return "float64" + case "[object Float32Array]": + return "float32" + case "[object Int8Array]": + return "int8" + case "[object Int16Array]": + return "int16" + case "[object Int32Array]": + return "int32" + case "[object Uint8ClampedArray]": + return "uint8_clamped" + case "[object Uint8Array]": + return "uint8" + case "[object Uint16Array]": + return "uint16" + case "[object Uint32Array]": + return "uint32" + case "[object BigInt64Array]": + return "bigint64" + case "[object BigUint64Array]": + return "biguint64" + } + } + if(Array.isArray(data)) { + return "array" + } + return "generic" +} + +var CACHED_CONSTRUCTORS = { + "generic":[], + "buffer":[], + "array":[], + + // typed arrays + "float32":[], + "float64":[], + "int8":[], + "int16":[], + "int32":[], + "uint8_clamped":[], + "uint8":[], + "uint16":[], + "uint32":[], + "bigint64": [], + "biguint64": [] +} + +;(function() { + for(var id in CACHED_CONSTRUCTORS) { + CACHED_CONSTRUCTORS[id].push(compileConstructor(id, -1)) + } +}); + +function wrappedNDArrayCtor(data, shape, stride, offset) { + if(data === undefined) { + var ctor = CACHED_CONSTRUCTORS.array[0] + return ctor([]) + } else if(typeof data === "number") { + data = [data] + } + if(shape === undefined) { + shape = [ data.length ] + } + var d = shape.length + if(stride === undefined) { + stride = new Array(d) + for(var i=d-1, sz=1; i>=0; --i) { + stride[i] = sz + sz *= shape[i] + } + } + if(offset === undefined) { + offset = 0 + for(var i=0; i>>0 + +module.exports = nextafter + +function nextafter(x, y) { + if(isNaN(x) || isNaN(y)) { + return NaN + } + if(x === y) { + return x + } + if(x === 0) { + if(y < 0) { + return -SMALLEST_DENORM + } else { + return SMALLEST_DENORM + } + } + var hi = doubleBits.hi(x) + var lo = doubleBits.lo(x) + if((y > x) === (x > 0)) { + if(lo === UINT_MAX) { + hi += 1 + lo = 0 + } else { + lo += 1 + } + } else { + if(lo === 0) { + lo = UINT_MAX + hi -= 1 + } else { + lo -= 1 + } + } + return doubleBits.pack(lo, hi) +} +},{"double-bits":64}],261:[function(_glvis_,module,exports){ +var DEFAULT_NORMALS_EPSILON = 1e-6; +var DEFAULT_FACE_EPSILON = 1e-6; + +//Estimate the vertex normals of a mesh +exports.vertexNormals = function(faces, positions, specifiedEpsilon) { + + var N = positions.length; + var normals = new Array(N); + var epsilon = specifiedEpsilon === void(0) ? DEFAULT_NORMALS_EPSILON : specifiedEpsilon; + + //Initialize normal array + for(var i=0; i epsilon) { + var norm = normals[c]; + var w = 1.0 / Math.sqrt(m01 * m21); + for(var k=0; k<3; ++k) { + var u = (k+1)%3; + var v = (k+2)%3; + norm[k] += w * (d21[u] * d01[v] - d21[v] * d01[u]); + } + } + } + } + + //Scale all normals to unit length + for(var i=0; i epsilon) { + var w = 1.0 / Math.sqrt(m); + for(var k=0; k<3; ++k) { + norm[k] *= w; + } + } else { + for(var k=0; k<3; ++k) { + norm[k] = 0.0; + } + } + } + + //Return the resulting set of patches + return normals; +} + +//Compute face normals of a mesh +exports.faceNormals = function(faces, positions, specifiedEpsilon) { + + var N = faces.length; + var normals = new Array(N); + var epsilon = specifiedEpsilon === void(0) ? DEFAULT_FACE_EPSILON : specifiedEpsilon; + + for(var i=0; i epsilon) { + l = 1.0 / Math.sqrt(l); + } else { + l = 0.0; + } + for(var j=0; j<3; ++j) { + n[j] *= l; + } + normals[i] = n; + } + return normals; +} + + + +},{}],262:[function(_glvis_,module,exports){ +'use strict' + +module.exports = quatFromFrame + +function quatFromFrame( + out, + rx, ry, rz, + ux, uy, uz, + fx, fy, fz) { + var tr = rx + uy + fz + if(l > 0) { + var l = Math.sqrt(tr + 1.0) + out[0] = 0.5 * (uz - fy) / l + out[1] = 0.5 * (fx - rz) / l + out[2] = 0.5 * (ry - uy) / l + out[3] = 0.5 * l + } else { + var tf = Math.max(rx, uy, fz) + var l = Math.sqrt(2 * tf - tr + 1.0) + if(rx >= tf) { + //x y z order + out[0] = 0.5 * l + out[1] = 0.5 * (ux + ry) / l + out[2] = 0.5 * (fx + rz) / l + out[3] = 0.5 * (uz - fy) / l + } else if(uy >= tf) { + //y z x order + out[0] = 0.5 * (ry + ux) / l + out[1] = 0.5 * l + out[2] = 0.5 * (fy + uz) / l + out[3] = 0.5 * (fx - rz) / l + } else { + //z x y order + out[0] = 0.5 * (rz + fx) / l + out[1] = 0.5 * (uz + fy) / l + out[2] = 0.5 * l + out[3] = 0.5 * (ry - ux) / l + } + } + return out +} +},{}],263:[function(_glvis_,module,exports){ +'use strict' + +module.exports = createOrbitController + +var filterVector = _glvis_('filtered-vector') +var lookAt = _glvis_('gl-mat4/lookAt') +var mat4FromQuat = _glvis_('gl-mat4/fromQuat') +var invert44 = _glvis_('gl-mat4/invert') +var quatFromFrame = _glvis_('./lib/quatFromFrame') + +function len3(x,y,z) { + return Math.sqrt(Math.pow(x,2) + Math.pow(y,2) + Math.pow(z,2)) +} + +function len4(w,x,y,z) { + return Math.sqrt(Math.pow(w,2) + Math.pow(x,2) + Math.pow(y,2) + Math.pow(z,2)) +} + +function normalize4(out, a) { + var ax = a[0] + var ay = a[1] + var az = a[2] + var aw = a[3] + var al = len4(ax, ay, az, aw) + if(al > 1e-6) { + out[0] = ax/al + out[1] = ay/al + out[2] = az/al + out[3] = aw/al + } else { + out[0] = out[1] = out[2] = 0.0 + out[3] = 1.0 + } +} + +function OrbitCameraController(initQuat, initCenter, initRadius) { + this.radius = filterVector([initRadius]) + this.center = filterVector(initCenter) + this.rotation = filterVector(initQuat) + + this.computedRadius = this.radius.curve(0) + this.computedCenter = this.center.curve(0) + this.computedRotation = this.rotation.curve(0) + this.computedUp = [0.1,0,0] + this.computedEye = [0.1,0,0] + this.computedMatrix = [0.1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] + + this.recalcMatrix(0) +} + +var proto = OrbitCameraController.prototype + +proto.lastT = function() { + return Math.max( + this.radius.lastT(), + this.center.lastT(), + this.rotation.lastT()) +} + +proto.recalcMatrix = function(t) { + this.radius.curve(t) + this.center.curve(t) + this.rotation.curve(t) + + var quat = this.computedRotation + normalize4(quat, quat) + + var mat = this.computedMatrix + mat4FromQuat(mat, quat) + + var center = this.computedCenter + var eye = this.computedEye + var up = this.computedUp + var radius = Math.exp(this.computedRadius[0]) + + eye[0] = center[0] + radius * mat[2] + eye[1] = center[1] + radius * mat[6] + eye[2] = center[2] + radius * mat[10] + up[0] = mat[1] + up[1] = mat[5] + up[2] = mat[9] + + for(var i=0; i<3; ++i) { + var rr = 0.0 + for(var j=0; j<3; ++j) { + rr += mat[i+4*j] * eye[j] + } + mat[12+i] = -rr + } +} + +proto.getMatrix = function(t, result) { + this.recalcMatrix(t) + var m = this.computedMatrix + if(result) { + for(var i=0; i<16; ++i) { + result[i] = m[i] + } + return result + } + return m +} + +proto.idle = function(t) { + this.center.idle(t) + this.radius.idle(t) + this.rotation.idle(t) +} + +proto.flush = function(t) { + this.center.flush(t) + this.radius.flush(t) + this.rotation.flush(t) +} + +proto.pan = function(t, dx, dy, dz) { + dx = dx || 0.0 + dy = dy || 0.0 + dz = dz || 0.0 + + this.recalcMatrix(t) + var mat = this.computedMatrix + + var ux = mat[1] + var uy = mat[5] + var uz = mat[9] + var ul = len3(ux, uy, uz) + ux /= ul + uy /= ul + uz /= ul + + var rx = mat[0] + var ry = mat[4] + var rz = mat[8] + var ru = rx * ux + ry * uy + rz * uz + rx -= ux * ru + ry -= uy * ru + rz -= uz * ru + var rl = len3(rx, ry, rz) + rx /= rl + ry /= rl + rz /= rl + + var fx = mat[2] + var fy = mat[6] + var fz = mat[10] + var fu = fx * ux + fy * uy + fz * uz + var fr = fx * rx + fy * ry + fz * rz + fx -= fu * ux + fr * rx + fy -= fu * uy + fr * ry + fz -= fu * uz + fr * rz + var fl = len3(fx, fy, fz) + fx /= fl + fy /= fl + fz /= fl + + var vx = rx * dx + ux * dy + var vy = ry * dx + uy * dy + var vz = rz * dx + uz * dy + + this.center.move(t, vx, vy, vz) + + //Update z-component of radius + var radius = Math.exp(this.computedRadius[0]) + radius = Math.max(1e-4, radius + dz) + this.radius.set(t, Math.log(radius)) +} + +proto.rotate = function(t, dx, dy, dz) { + this.recalcMatrix(t) + + dx = dx||0.0 + dy = dy||0.0 + + var mat = this.computedMatrix + + var rx = mat[0] + var ry = mat[4] + var rz = mat[8] + + var ux = mat[1] + var uy = mat[5] + var uz = mat[9] + + var fx = mat[2] + var fy = mat[6] + var fz = mat[10] + + var qx = dx * rx + dy * ux + var qy = dx * ry + dy * uy + var qz = dx * rz + dy * uz + + var bx = -(fy * qz - fz * qy) + var by = -(fz * qx - fx * qz) + var bz = -(fx * qy - fy * qx) + var bw = Math.sqrt(Math.max(0.0, 1.0 - Math.pow(bx,2) - Math.pow(by,2) - Math.pow(bz,2))) + var bl = len4(bx, by, bz, bw) + if(bl > 1e-6) { + bx /= bl + by /= bl + bz /= bl + bw /= bl + } else { + bx = by = bz = 0.0 + bw = 1.0 + } + + var rotation = this.computedRotation + var ax = rotation[0] + var ay = rotation[1] + var az = rotation[2] + var aw = rotation[3] + + var cx = ax*bw + aw*bx + ay*bz - az*by + var cy = ay*bw + aw*by + az*bx - ax*bz + var cz = az*bw + aw*bz + ax*by - ay*bx + var cw = aw*bw - ax*bx - ay*by - az*bz + + //Apply roll + if(dz) { + bx = fx + by = fy + bz = fz + var s = Math.sin(dz) / len3(bx, by, bz) + bx *= s + by *= s + bz *= s + bw = Math.cos(dx) + cx = cx*bw + cw*bx + cy*bz - cz*by + cy = cy*bw + cw*by + cz*bx - cx*bz + cz = cz*bw + cw*bz + cx*by - cy*bx + cw = cw*bw - cx*bx - cy*by - cz*bz + } + + var cl = len4(cx, cy, cz, cw) + if(cl > 1e-6) { + cx /= cl + cy /= cl + cz /= cl + cw /= cl + } else { + cx = cy = cz = 0.0 + cw = 1.0 + } + + this.rotation.set(t, cx, cy, cz, cw) +} + +proto.lookAt = function(t, eye, center, up) { + this.recalcMatrix(t) + + center = center || this.computedCenter + eye = eye || this.computedEye + up = up || this.computedUp + + var mat = this.computedMatrix + lookAt(mat, eye, center, up) + + var rotation = this.computedRotation + quatFromFrame(rotation, + mat[0], mat[1], mat[2], + mat[4], mat[5], mat[6], + mat[8], mat[9], mat[10]) + normalize4(rotation, rotation) + this.rotation.set(t, rotation[0], rotation[1], rotation[2], rotation[3]) + + var fl = 0.0 + for(var i=0; i<3; ++i) { + fl += Math.pow(center[i] - eye[i], 2) + } + this.radius.set(t, 0.5 * Math.log(Math.max(fl, 1e-6))) + + this.center.set(t, center[0], center[1], center[2]) +} + +proto.translate = function(t, dx, dy, dz) { + this.center.move(t, + dx||0.0, + dy||0.0, + dz||0.0) +} + +proto.setMatrix = function(t, matrix) { + + var rotation = this.computedRotation + quatFromFrame(rotation, + matrix[0], matrix[1], matrix[2], + matrix[4], matrix[5], matrix[6], + matrix[8], matrix[9], matrix[10]) + normalize4(rotation, rotation) + this.rotation.set(t, rotation[0], rotation[1], rotation[2], rotation[3]) + + var mat = this.computedMatrix + invert44(mat, matrix) + var w = mat[15] + if(Math.abs(w) > 1e-6) { + var cx = mat[12]/w + var cy = mat[13]/w + var cz = mat[14]/w + + this.recalcMatrix(t) + var r = Math.exp(this.computedRadius[0]) + this.center.set(t, cx-mat[2]*r, cy-mat[6]*r, cz-mat[10]*r) + this.radius.idle(t) + } else { + this.center.idle(t) + this.radius.idle(t) + } +} + +proto.setDistance = function(t, d) { + if(d > 0) { + this.radius.set(t, Math.log(d)) + } +} + +proto.setDistanceLimits = function(lo, hi) { + if(lo > 0) { + lo = Math.log(lo) + } else { + lo = -Infinity + } + if(hi > 0) { + hi = Math.log(hi) + } else { + hi = Infinity + } + hi = Math.max(hi, lo) + this.radius.bounds[0][0] = lo + this.radius.bounds[1][0] = hi +} + +proto.getDistanceLimits = function(out) { + var bounds = this.radius.bounds + if(out) { + out[0] = Math.exp(bounds[0][0]) + out[1] = Math.exp(bounds[1][0]) + return out + } + return [ Math.exp(bounds[0][0]), Math.exp(bounds[1][0]) ] +} + +proto.toJSON = function() { + this.recalcMatrix(this.lastT()) + return { + center: this.computedCenter.slice(), + rotation: this.computedRotation.slice(), + distance: Math.log(this.computedRadius[0]), + zoomMin: this.radius.bounds[0][0], + zoomMax: this.radius.bounds[1][0] + } +} + +proto.fromJSON = function(options) { + var t = this.lastT() + var c = options.center + if(c) { + this.center.set(t, c[0], c[1], c[2]) + } + var r = options.rotation + if(r) { + this.rotation.set(t, r[0], r[1], r[2], r[3]) + } + var d = options.distance + if(d && d > 0) { + this.radius.set(t, Math.log(d)) + } + this.setDistanceLimits(options.zoomMin, options.zoomMax) +} + +function createOrbitController(options) { + options = options || {} + var center = options.center || [0,0,0] + var rotation = options.rotation || [0,0,0,1] + var radius = options.radius || 1.0 + + center = [].slice.call(center, 0, 3) + rotation = [].slice.call(rotation, 0, 4) + normalize4(rotation, rotation) + + var result = new OrbitCameraController( + rotation, + center, + Math.log(radius)) + + result.setDistanceLimits(options.zoomMin, options.zoomMax) + + if('eye' in options || 'up' in options) { + result.lookAt(0, options.eye, options.center, options.up) + } + + return result +} +},{"./lib/quatFromFrame":262,"filtered-vector":68,"gl-mat4/fromQuat":95,"gl-mat4/invert":98,"gl-mat4/lookAt":99}],264:[function(_glvis_,module,exports){ +/*! + * pad-left + * + * Copyright (c) 2014-2015, Jon Schlinkert. + * Licensed under the MIT license. + */ + +'use strict'; + +var repeat = _glvis_('repeat-string'); + +module.exports = function padLeft(str, num, ch) { + ch = typeof ch !== 'undefined' ? (ch + '') : ' '; + return repeat(ch, num) + str; +}; +},{"repeat-string":277}],265:[function(_glvis_,module,exports){ +module.exports = function parseUnit(str, out) { + if (!out) + out = [ 0, '' ] + + str = String(str) + var num = parseFloat(str, 10) + out[0] = num + out[1] = str.match(/[\d.\-\+]*\s*(.*)/)[1] || '' + return out +} +},{}],266:[function(_glvis_,module,exports){ +"use strict" + +module.exports = planarDual + +var compareAngle = _glvis_("compare-angle") + +function planarDual(cells, positions) { + + var numVertices = positions.length|0 + var numEdges = cells.length + var adj = [new Array(numVertices), new Array(numVertices)] + for(var i=0; i 0) { + nextCell = adj[i][b][0] + nextDir = i + break + } + } + nextVertex = nextCell[nextDir^1] + + for(var dir=0; dir<2; ++dir) { + var nbhd = adj[dir][b] + for(var k=0; k 0) { + nextCell = e + nextVertex = p + nextDir = dir + } + } + } + if(noCut) { + return nextVertex + } + if(nextCell) { + cut(nextCell, nextDir) + } + return nextVertex + } + + function extractCycle(v, dir) { + var e0 = adj[dir][v][0] + var cycle = [v] + cut(e0, dir) + var u = e0[dir^1] + var d0 = dir + while(true) { + while(u !== v) { + cycle.push(u) + u = next(cycle[cycle.length-2], u, false) + } + if(adj[0][v].length + adj[1][v].length === 0) { + break + } + var a = cycle[cycle.length-1] + var b = v + var c = cycle[1] + var d = next(a, b, true) + if(compareAngle(positions[a], positions[b], positions[c], positions[d]) < 0) { + break + } + cycle.push(v) + u = next(a, b) + } + return cycle + } + + function shouldGlue(pcycle, ncycle) { + return (ncycle[1] === ncycle[ncycle.length-1]) + } + + for(var i=0; i 0) { + var ni = adj[0][i].length + var ncycle = extractCycle(i,j) + if(shouldGlue(pcycle, ncycle)) { + //Glue together trivial cycles + pcycle.push.apply(pcycle, ncycle) + } else { + if(pcycle.length > 0) { + cycles.push(pcycle) + } + pcycle = ncycle + } + } + if(pcycle.length > 0) { + cycles.push(pcycle) + } + } + } + + //Combine paths and loops together + return cycles +} +},{"compare-angle":54}],267:[function(_glvis_,module,exports){ +'use strict' + +module.exports = trimLeaves + +var e2a = _glvis_('edges-to-adjacency-list') + +function trimLeaves(edges, positions) { + var adj = e2a(edges, positions.length) + var live = new Array(positions.length) + var nbhd = new Array(positions.length) + + var dead = [] + for(var i=0; i 0) { + var v = dead.pop() + live[v] = false + var n = adj[v] + for(var i=0; i 0 + } + + //Extract all clockwise faces + faces = faces.filter(ccw) + + //Detect which loops are contained in one another to handle parent-of relation + var numFaces = faces.length + var parent = new Array(numFaces) + var containment = new Array(numFaces) + for(var i=0; i 0) { + var top = toVisit.pop() + var nbhd = fadj[top] + uniq(nbhd, function(a,b) { + return a-b + }) + var nnbhr = nbhd.length + var p = parity[top] + var polyline + if(p === 0) { + var c = faces[top] + polyline = [c] + } + for(var i=0; i= 0) { + continue + } + parity[f] = p^1 + toVisit.push(f) + if(p === 0) { + var c = faces[f] + if(!sharedBoundary(c)) { + c.reverse() + polyline.push(c) + } + } + } + if(p === 0) { + result.push(polyline) + } + } + + return result +} +},{"./lib/trim-leaves":267,"edges-to-adjacency-list":66,"planar-dual":266,"point-in-big-polygon":269,"robust-sum":289,"two-product":306,"uniq":310}],269:[function(_glvis_,module,exports){ +module.exports = preprocessPolygon + +var orient = _glvis_('robust-orientation')[3] +var makeSlabs = _glvis_('slab-decomposition') +var makeIntervalTree = _glvis_('interval-tree-1d') +var bsearch = _glvis_('binary-search-bounds') + +function visitInterval() { + return true +} + +function intervalSearch(table) { + return function(x, y) { + var tree = table[x] + if(tree) { + return !!tree.queryPoint(y, visitInterval) + } + return false + } +} + +function buildVerticalIndex(segments) { + var table = {} + for(var i=0; i 0 && coordinates[bucket] === p[0]) { + root = slabs[bucket-1] + } else { + return 1 + } + } + var lastOrientation = 1 + while(root) { + var s = root.key + var o = orient(p, s[0], s[1]) + if(s[0][0] < s[1][0]) { + if(o < 0) { + root = root.left + } else if(o > 0) { + lastOrientation = -1 + root = root.right + } else { + return 0 + } + } else { + if(o > 0) { + root = root.left + } else if(o < 0) { + lastOrientation = 1 + root = root.right + } else { + return 0 + } + } + } + return lastOrientation + } +} + +function classifyEmpty(p) { + return 1 +} + +function createClassifyVertical(testVertical) { + return function classify(p) { + if(testVertical(p[0], p[1])) { + return 0 + } + return 1 + } +} + +function createClassifyPointDegen(testVertical, testNormal) { + return function classify(p) { + if(testVertical(p[0], p[1])) { + return 0 + } + return testNormal(p) + } +} + +function preprocessPolygon(loops) { + //Compute number of loops + var numLoops = loops.length + + //Unpack segments + var segments = [] + var vsegments = [] + var ptr = 0 + for(var i=0; i= a00) { + s = 1.0; + sqrDistance = a00 + 2.0*b0 + c; + } else { + s = -b0/a00; + sqrDistance = b0*s + c; + } + } else { + s = 0; + if (b1 >= 0) { + t = 0; + sqrDistance = c; + } else if (-b1 >= a11) { + t = 1; + sqrDistance = a11 + 2.0*b1 + c; + } else { + t = -b1/a11; + sqrDistance = b1*t + c; + } + } + } else { // region 3 + s = 0; + if (b1 >= 0) { + t = 0; + sqrDistance = c; + } else if (-b1 >= a11) { + t = 1; + sqrDistance = a11 + 2.0*b1 + c; + } else { + t = -b1/a11; + sqrDistance = b1*t + c; + } + } + } else if (t < 0) { // region 5 + t = 0; + if (b0 >= 0) { + s = 0; + sqrDistance = c; + } else if (-b0 >= a00) { + s = 1; + sqrDistance = a00 + 2.0*b0 + c; + } else { + s = -b0/a00; + sqrDistance = b0*s + c; + } + } else { // region 0 + // minimum at interior point + var invDet = 1.0 / det; + s *= invDet; + t *= invDet; + sqrDistance = s*(a00*s + a01*t + 2.0*b0) + t*(a01*s + a11*t + 2.0*b1) + c; + } + } else { + var tmp0, tmp1, numer, denom; + + if (s < 0) { // region 2 + tmp0 = a01 + b0; + tmp1 = a11 + b1; + if (tmp1 > tmp0) { + numer = tmp1 - tmp0; + denom = a00 - 2.0*a01 + a11; + if (numer >= denom) { + s = 1; + t = 0; + sqrDistance = a00 + 2.0*b0 + c; + } else { + s = numer/denom; + t = 1 - s; + sqrDistance = s*(a00*s + a01*t + 2.0*b0) + + t*(a01*s + a11*t + 2.0*b1) + c; + } + } else { + s = 0; + if (tmp1 <= 0) { + t = 1; + sqrDistance = a11 + 2.0*b1 + c; + } else if (b1 >= 0) { + t = 0; + sqrDistance = c; + } else { + t = -b1/a11; + sqrDistance = b1*t + c; + } + } + } else if (t < 0) { // region 6 + tmp0 = a01 + b1; + tmp1 = a00 + b0; + if (tmp1 > tmp0) { + numer = tmp1 - tmp0; + denom = a00 - 2.0*a01 + a11; + if (numer >= denom) { + t = 1; + s = 0; + sqrDistance = a11 + 2.0*b1 + c; + } else { + t = numer/denom; + s = 1 - t; + sqrDistance = s*(a00*s + a01*t + 2.0*b0) + + t*(a01*s + a11*t + 2.0*b1) + c; + } + } else { + t = 0; + if (tmp1 <= 0) { + s = 1; + sqrDistance = a00 + 2.0*b0 + c; + } else if (b0 >= 0) { + s = 0; + sqrDistance = c; + } else { + s = -b0/a00; + sqrDistance = b0*s + c; + } + } + } else { // region 1 + numer = a11 + b1 - a01 - b0; + if (numer <= 0) { + s = 0; + t = 1; + sqrDistance = a11 + 2.0*b1 + c; + } else { + denom = a00 - 2.0*a01 + a11; + if (numer >= denom) { + s = 1; + t = 0; + sqrDistance = a00 + 2.0*b0 + c; + } else { + s = numer/denom; + t = 1 - s; + sqrDistance = s*(a00*s + a01*t + 2.0*b0) + + t*(a01*s + a11*t + 2.0*b1) + c; + } + } + } + } + var u = 1.0 - s - t; + for(var i=0; i 0) { + var f = cells[ptr-1] + if(compareCell(c, f) === 0 && + orientation(f) !== o) { + ptr -= 1 + continue + } + } + cells[ptr++] = c + } + cells.length = ptr + return cells +} + +},{"cell-orientation":47,"compare-cell":56,"compare-oriented-cell":57}],277:[function(_glvis_,module,exports){ +/*! + * repeat-string + * + * Copyright (c) 2014-2015, Jon Schlinkert. + * Licensed under the MIT License. + */ + +'use strict'; + +/** + * Results cache + */ + +var res = ''; +var cache; + +/** + * Expose `repeat` + */ + +module.exports = repeat; + +/** + * Repeat the given `string` the specified `number` + * of times. + * + * **Example:** + * + * ```js + * var repeat = require('repeat-string'); + * repeat('A', 5); + * //=> AAAAA + * ``` + * + * @param {String} `string` The string to repeat + * @param {Number} `number` The number of times to repeat the string + * @return {String} Repeated string + * @api public + */ + +function repeat(str, num) { + if (typeof str !== 'string') { + throw new TypeError('expected a string'); + } + + // cover common, quick use cases + if (num === 1) return str; + if (num === 2) return str + str; + + var max = str.length * num; + if (cache !== str || typeof cache === 'undefined') { + cache = str; + res = ''; + } else if (res.length >= max) { + return res.substr(0, max); + } + + while (max > res.length && num > 1) { + if (num & 1) { + res += str; + } + + num >>= 1; + str += str; + } + + res += str; + res = res.substr(0, max); + return res; +} + +},{}],278:[function(_glvis_,module,exports){ +(function (global){(function (){ +module.exports = + global.performance && + global.performance.now ? function now() { + return performance.now() + } : Date.now || function now() { + return +new Date + } + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{}],279:[function(_glvis_,module,exports){ +"use strict" + +module.exports = compressExpansion + +function compressExpansion(e) { + var m = e.length + var Q = e[e.length-1] + var bottom = m + for(var i=m-2; i>=0; --i) { + var a = Q + var b = e[i] + Q = a + b + var bv = Q - a + var q = b - bv + if(q) { + e[--bottom] = Q + Q = q + } + } + var top = 0 + for(var i=bottom; i 0) { + if(r <= 0) { + return det + } else { + s = l + r + } + } else if(l < 0) { + if(r >= 0) { + return det + } else { + s = -(l + r) + } + } else { + return det + } + var tol = ERRBOUND3 * s + if(det >= tol || det <= -tol) { + return det + } + return orientation3Exact(a, b, c) + }, + function orientation4(a,b,c,d) { + var adx = a[0] - d[0] + var bdx = b[0] - d[0] + var cdx = c[0] - d[0] + var ady = a[1] - d[1] + var bdy = b[1] - d[1] + var cdy = c[1] - d[1] + var adz = a[2] - d[2] + var bdz = b[2] - d[2] + var cdz = c[2] - d[2] + var bdxcdy = bdx * cdy + var cdxbdy = cdx * bdy + var cdxady = cdx * ady + var adxcdy = adx * cdy + var adxbdy = adx * bdy + var bdxady = bdx * ady + var det = adz * (bdxcdy - cdxbdy) + + bdz * (cdxady - adxcdy) + + cdz * (adxbdy - bdxady) + var permanent = (Math.abs(bdxcdy) + Math.abs(cdxbdy)) * Math.abs(adz) + + (Math.abs(cdxady) + Math.abs(adxcdy)) * Math.abs(bdz) + + (Math.abs(adxbdy) + Math.abs(bdxady)) * Math.abs(cdz) + var tol = ERRBOUND4 * permanent + if ((det > tol) || (-det > tol)) { + return det + } + return orientation4Exact(a,b,c,d) + } +] + +function slowOrient(args) { + var proc = CACHED[args.length] + if(!proc) { + proc = CACHED[args.length] = orientation(args.length) + } + return proc.apply(undefined, args) +} + +function proc (slow, o0, o1, o2, o3, o4, o5) { + return function getOrientation(a0, a1, a2, a3, a4) { + switch (arguments.length) { + case 0: + case 1: + return 0; + case 2: + return o2(a0, a1) + case 3: + return o3(a0, a1, a2) + case 4: + return o4(a0, a1, a2, a3) + case 5: + return o5(a0, a1, a2, a3, a4) + } + + var s = new Array(arguments.length) + for (var i = 0; i < arguments.length; ++i) { + s[i] = arguments[i] + } + return slow(s) + } +} + +function generateOrientationProc() { + while(CACHED.length <= NUM_EXPAND) { + CACHED.push(orientation(CACHED.length)) + } + module.exports = proc.apply(undefined, [slowOrient].concat(CACHED)) + for(var i=0; i<=NUM_EXPAND; ++i) { + module.exports[i] = CACHED[i] + } +} + +generateOrientationProc() +},{"robust-scale":286,"robust-subtract":288,"robust-sum":289,"two-product":306}],285:[function(_glvis_,module,exports){ +"use strict" + +var robustSum = _glvis_("robust-sum") +var robustScale = _glvis_("robust-scale") + +module.exports = robustProduct + +function robustProduct(a, b) { + if(a.length === 1) { + return robustScale(b, a[0]) + } + if(b.length === 1) { + return robustScale(a, b[0]) + } + if(a.length === 0 || b.length === 0) { + return [0] + } + var r = [0] + if(a.length < b.length) { + for(var i=0; i 0 && y0 > 0) || (x0 < 0 && y0 < 0)) { + return false + } + + var x1 = orient(b0, a0, a1) + var y1 = orient(b1, a0, a1) + if((x1 > 0 && y1 > 0) || (x1 < 0 && y1 < 0)) { + return false + } + + //Check for degenerate collinear case + if(x0 === 0 && y0 === 0 && x1 === 0 && y1 === 0) { + return checkCollinear(a0, a1, b0, b1) + } + + return true +} +},{"robust-orientation":284}],288:[function(_glvis_,module,exports){ +"use strict" + +module.exports = robustSubtract + +//Easy case: Add two scalars +function scalarScalar(a, b) { + var x = a + b + var bv = x - a + var av = x - bv + var br = b - bv + var ar = a - av + var y = ar + br + if(y) { + return [y, x] + } + return [x] +} + +function robustSubtract(e, f) { + var ne = e.length|0 + var nf = f.length|0 + if(ne === 1 && nf === 1) { + return scalarScalar(e[0], -f[0]) + } + var n = ne + nf + var g = new Array(n) + var count = 0 + var eptr = 0 + var fptr = 0 + var abs = Math.abs + var ei = e[eptr] + var ea = abs(ei) + var fi = -f[fptr] + var fa = abs(fi) + var a, b + if(ea < fa) { + b = ei + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + ea = abs(ei) + } + } else { + b = fi + fptr += 1 + if(fptr < nf) { + fi = -f[fptr] + fa = abs(fi) + } + } + if((eptr < ne && ea < fa) || (fptr >= nf)) { + a = ei + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + ea = abs(ei) + } + } else { + a = fi + fptr += 1 + if(fptr < nf) { + fi = -f[fptr] + fa = abs(fi) + } + } + var x = a + b + var bv = x - a + var y = b - bv + var q0 = y + var q1 = x + var _x, _bv, _av, _br, _ar + while(eptr < ne && fptr < nf) { + if(ea < fa) { + a = ei + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + ea = abs(ei) + } + } else { + a = fi + fptr += 1 + if(fptr < nf) { + fi = -f[fptr] + fa = abs(fi) + } + } + b = q0 + x = a + b + bv = x - a + y = b - bv + if(y) { + g[count++] = y + } + _x = q1 + x + _bv = _x - q1 + _av = _x - _bv + _br = x - _bv + _ar = q1 - _av + q0 = _ar + _br + q1 = _x + } + while(eptr < ne) { + a = ei + b = q0 + x = a + b + bv = x - a + y = b - bv + if(y) { + g[count++] = y + } + _x = q1 + x + _bv = _x - q1 + _av = _x - _bv + _br = x - _bv + _ar = q1 - _av + q0 = _ar + _br + q1 = _x + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + } + } + while(fptr < nf) { + a = fi + b = q0 + x = a + b + bv = x - a + y = b - bv + if(y) { + g[count++] = y + } + _x = q1 + x + _bv = _x - q1 + _av = _x - _bv + _br = x - _bv + _ar = q1 - _av + q0 = _ar + _br + q1 = _x + fptr += 1 + if(fptr < nf) { + fi = -f[fptr] + } + } + if(q0) { + g[count++] = q0 + } + if(q1) { + g[count++] = q1 + } + if(!count) { + g[count++] = 0.0 + } + g.length = count + return g +} +},{}],289:[function(_glvis_,module,exports){ +"use strict" + +module.exports = linearExpansionSum + +//Easy case: Add two scalars +function scalarScalar(a, b) { + var x = a + b + var bv = x - a + var av = x - bv + var br = b - bv + var ar = a - av + var y = ar + br + if(y) { + return [y, x] + } + return [x] +} + +function linearExpansionSum(e, f) { + var ne = e.length|0 + var nf = f.length|0 + if(ne === 1 && nf === 1) { + return scalarScalar(e[0], f[0]) + } + var n = ne + nf + var g = new Array(n) + var count = 0 + var eptr = 0 + var fptr = 0 + var abs = Math.abs + var ei = e[eptr] + var ea = abs(ei) + var fi = f[fptr] + var fa = abs(fi) + var a, b + if(ea < fa) { + b = ei + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + ea = abs(ei) + } + } else { + b = fi + fptr += 1 + if(fptr < nf) { + fi = f[fptr] + fa = abs(fi) + } + } + if((eptr < ne && ea < fa) || (fptr >= nf)) { + a = ei + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + ea = abs(ei) + } + } else { + a = fi + fptr += 1 + if(fptr < nf) { + fi = f[fptr] + fa = abs(fi) + } + } + var x = a + b + var bv = x - a + var y = b - bv + var q0 = y + var q1 = x + var _x, _bv, _av, _br, _ar + while(eptr < ne && fptr < nf) { + if(ea < fa) { + a = ei + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + ea = abs(ei) + } + } else { + a = fi + fptr += 1 + if(fptr < nf) { + fi = f[fptr] + fa = abs(fi) + } + } + b = q0 + x = a + b + bv = x - a + y = b - bv + if(y) { + g[count++] = y + } + _x = q1 + x + _bv = _x - q1 + _av = _x - _bv + _br = x - _bv + _ar = q1 - _av + q0 = _ar + _br + q1 = _x + } + while(eptr < ne) { + a = ei + b = q0 + x = a + b + bv = x - a + y = b - bv + if(y) { + g[count++] = y + } + _x = q1 + x + _bv = _x - q1 + _av = _x - _bv + _br = x - _bv + _ar = q1 - _av + q0 = _ar + _br + q1 = _x + eptr += 1 + if(eptr < ne) { + ei = e[eptr] + } + } + while(fptr < nf) { + a = fi + b = q0 + x = a + b + bv = x - a + y = b - bv + if(y) { + g[count++] = y + } + _x = q1 + x + _bv = _x - q1 + _av = _x - _bv + _br = x - _bv + _ar = q1 - _av + q0 = _ar + _br + q1 = _x + fptr += 1 + if(fptr < nf) { + fi = f[fptr] + } + } + if(q0) { + g[count++] = q0 + } + if(q1) { + g[count++] = q1 + } + if(!count) { + g[count++] = 0.0 + } + g.length = count + return g +} +},{}],290:[function(_glvis_,module,exports){ +'use strict' + +module.exports = boundary + +var bnd = _glvis_('boundary-cells') +var reduce = _glvis_('reduce-simplicial-complex') + +function boundary(cells) { + return reduce(bnd(cells)) +} + +},{"boundary-cells":34,"reduce-simplicial-complex":276}],291:[function(_glvis_,module,exports){ +'use strict' + +module.exports = extractContour + +var ndarray = _glvis_('ndarray') +var pool = _glvis_('typedarray-pool') +var ndsort = _glvis_('ndarray-sort') + +var contourAlgorithm = _glvis_('./lib/codegen') + +function getDimension(cells) { + var numCells = cells.length + var d = 0 + for(var i=0; i> 1, + v = E[2 * m + 1] + if (v === b) { + return m + } + if (b < v) { + h = m + } else { + l = m + 1 + } + } + return l + } + function getContour0d(F, E, C, S) { + var n = F.length, + R = [] + for (var i = 0; i < n; ++i) { + var c = F[i], + l = c.length + } + return R + } + return getContour0d + }, + function cellPolygonizer_1() { + function B(C, E, i, j) { + var a = Math.min(i, j) | 0, + b = Math.max(i, j) | 0, + l = C[2 * a], + h = C[2 * a + 1] + while (l < h) { + var m = (l + h) >> 1, + v = E[2 * m + 1] + if (v === b) { + return m + } + if (b < v) { + h = m + } else { + l = m + 1 + } + } + return l + } + function getContour1d(F, E, C, S) { + var n = F.length, + R = [] + for (var i = 0; i < n; ++i) { + var c = F[i], + l = c.length + if (l === 2) { + var M = (S[c[0]] << 0) + (S[c[1]] << 1) + if (M === 0 || M === 3) { + continue + } + switch (M) { + case 0: + break + case 1: + R.push([B(C, E, c[0], c[1])]) + break + case 2: + R.push([B(C, E, c[1], c[0])]) + break + case 3: + break + } + } + } + return R + } + return getContour1d + }, + function cellPolygonizer_2() { + function B(C, E, i, j) { + var a = Math.min(i, j) | 0, + b = Math.max(i, j) | 0, + l = C[2 * a], + h = C[2 * a + 1] + while (l < h) { + var m = (l + h) >> 1, + v = E[2 * m + 1] + if (v === b) { + return m + } + if (b < v) { + h = m + } else { + l = m + 1 + } + } + return l + } + function getContour2d(F, E, C, S) { + var n = F.length, + R = [] + for (var i = 0; i < n; ++i) { + var c = F[i], + l = c.length + if (l === 3) { + var M = (S[c[0]] << 0) + (S[c[1]] << 1) + (S[c[2]] << 2) + if (M === 0 || M === 7) { + continue + } + switch (M) { + case 0: + break + case 1: + R.push([B(C, E, c[0], c[2]), B(C, E, c[0], c[1])]) + break + case 2: + R.push([B(C, E, c[1], c[0]), B(C, E, c[1], c[2])]) + break + case 3: + R.push([B(C, E, c[0], c[2]), B(C, E, c[1], c[2])]) + break + case 4: + R.push([B(C, E, c[2], c[1]), B(C, E, c[2], c[0])]) + break + case 5: + R.push([B(C, E, c[2], c[1]), B(C, E, c[0], c[1])]) + break + case 6: + R.push([B(C, E, c[1], c[0]), B(C, E, c[2], c[0])]) + break + case 7: + break + } + } else if (l === 2) { + var M = (S[c[0]] << 0) + (S[c[1]] << 1) + if (M === 0 || M === 3) { + continue + } + switch (M) { + case 0: + break + case 1: + R.push([B(C, E, c[0], c[1])]) + break + case 2: + R.push([B(C, E, c[1], c[0])]) + break + case 3: + break + } + } + } + return R + } + return getContour2d + }, + function cellPolygonizer_3() { + function B(C, E, i, j) { + var a = Math.min(i, j) | 0, + b = Math.max(i, j) | 0, + l = C[2 * a], + h = C[2 * a + 1] + while (l < h) { + var m = (l + h) >> 1, + v = E[2 * m + 1] + if (v === b) { + return m + } + if (b < v) { + h = m + } else { + l = m + 1 + } + } + return l + } + function getContour3d(F, E, C, S) { + var n = F.length, + R = [] + for (var i = 0; i < n; ++i) { + var c = F[i], + l = c.length + if (l === 4) { + var M = (S[c[0]] << 0) + (S[c[1]] << 1) + (S[c[2]] << 2) + (S[c[3]] << 3) + if (M === 0 || M === 15) { + continue + } + switch (M) { + case 0: + break + case 1: + R.push([B(C, E, c[0], c[1]), B(C, E, c[0], c[2]), B(C, E, c[0], c[3])]) + break + case 2: + R.push([B(C, E, c[1], c[2]), B(C, E, c[1], c[0]), B(C, E, c[1], c[3])]) + break + case 3: + R.push([B(C, E, c[1], c[2]), B(C, E, c[0], c[2]), B(C, E, c[0], c[3])], [B(C, E, c[1], c[3]), B(C, E, c[1], c[2]), B(C, E, c[0], c[3])]) + break + case 4: + R.push([B(C, E, c[2], c[0]), B(C, E, c[2], c[1]), B(C, E, c[2], c[3])]) + break + case 5: + R.push([B(C, E, c[0], c[1]), B(C, E, c[2], c[1]), B(C, E, c[0], c[3])], [B(C, E, c[2], c[1]), B(C, E, c[2], c[3]), B(C, E, c[0], c[3])]) + break + case 6: + R.push([B(C, E, c[2], c[0]), B(C, E, c[1], c[0]), B(C, E, c[1], c[3])], [B(C, E, c[2], c[3]), B(C, E, c[2], c[0]), B(C, E, c[1], c[3])]) + break + case 7: + R.push([B(C, E, c[0], c[3]), B(C, E, c[1], c[3]), B(C, E, c[2], c[3])]) + break + case 8: + R.push([B(C, E, c[3], c[1]), B(C, E, c[3], c[0]), B(C, E, c[3], c[2])]) + break + case 9: + R.push([B(C, E, c[3], c[1]), B(C, E, c[0], c[1]), B(C, E, c[0], c[2])], [B(C, E, c[3], c[2]), B(C, E, c[3], c[1]), B(C, E, c[0], c[2])]) + break + case 10: + R.push([B(C, E, c[1], c[0]), B(C, E, c[3], c[0]), B(C, E, c[1], c[2])], [B(C, E, c[3], c[0]), B(C, E, c[3], c[2]), B(C, E, c[1], c[2])]) + break + case 11: + R.push([B(C, E, c[1], c[2]), B(C, E, c[0], c[2]), B(C, E, c[3], c[2])]) + break + case 12: + R.push([B(C, E, c[3], c[0]), B(C, E, c[2], c[0]), B(C, E, c[2], c[1])], [B(C, E, c[3], c[1]), B(C, E, c[3], c[0]), B(C, E, c[2], c[1])]) + break + case 13: + R.push([B(C, E, c[0], c[1]), B(C, E, c[2], c[1]), B(C, E, c[3], c[1])]) + break + case 14: + R.push([B(C, E, c[2], c[0]), B(C, E, c[1], c[0]), B(C, E, c[3], c[0])]) + break + case 15: + break + } + } else if (l === 3) { + var M = (S[c[0]] << 0) + (S[c[1]] << 1) + (S[c[2]] << 2) + if (M === 0 || M === 7) { + continue + } + switch (M) { + case 0: + break + case 1: + R.push([B(C, E, c[0], c[2]), B(C, E, c[0], c[1])]) + break + case 2: + R.push([B(C, E, c[1], c[0]), B(C, E, c[1], c[2])]) + break + case 3: + R.push([B(C, E, c[0], c[2]), B(C, E, c[1], c[2])]) + break + case 4: + R.push([B(C, E, c[2], c[1]), B(C, E, c[2], c[0])]) + break + case 5: + R.push([B(C, E, c[2], c[1]), B(C, E, c[0], c[1])]) + break + case 6: + R.push([B(C, E, c[1], c[0]), B(C, E, c[2], c[0])]) + break + case 7: + break + } + } else if (l === 2) { + var M = (S[c[0]] << 0) + (S[c[1]] << 1) + if (M === 0 || M === 3) { + continue + } + switch (M) { + case 0: + break + case 1: + R.push([B(C, E, c[0], c[1])]) + break + case 2: + R.push([B(C, E, c[1], c[0])]) + break + case 3: + break + } + } + } + return R + } + return getContour3d + } +] + +function getPolygonizer(d) { + return allFns[d](); +} + +},{}],293:[function(_glvis_,module,exports){ +"use strict"; "use restrict"; + +var bits = _glvis_("bit-twiddle") + , UnionFind = _glvis_("union-find") + +//Returns the dimension of a cell complex +function dimension(cells) { + var d = 0 + , max = Math.max + for(var i=0, il=cells.length; i> 1 + , s = compareCells(cells[mid], c) + if(s <= 0) { + if(s === 0) { + r = mid + } + lo = mid + 1 + } else if(s > 0) { + hi = mid - 1 + } + } + return r +} +exports.findCell = findCell; + +//Builds an index for an n-cell. This is more general than dual, but less efficient +function incidence(from_cells, to_cells) { + var index = new Array(from_cells.length) + for(var i=0, il=index.length; i= from_cells.length || compareCells(from_cells[idx], b) !== 0) { + break + } + } + } + } + return index +} +exports.incidence = incidence + +//Computes the dual of the mesh. This is basically an optimized version of buildIndex for the situation where from_cells is just the list of vertices +function dual(cells, vertex_count) { + if(!vertex_count) { + return incidence(unique(skeleton(cells, 0)), cells, 0) + } + var res = new Array(vertex_count) + for(var i=0; i>> k) & 1) { + b.push(c[k]) + } + } + result.push(b) + } + } + return normalize(result) +} +exports.explode = explode + +//Enumerates all of the n-cells of a cell complex +function skeleton(cells, n) { + if(n < 0) { + return [] + } + var result = [] + , k0 = (1<<(n+1))-1 + for(var i=0; i> 1 + } + return (i >> 1) - 1 + } + + //Bubble element i down the heap + function heapDown(i) { + var w = heapWeight(i) + while(true) { + var tw = w + var left = 2*i + 1 + var right = 2*(i + 1) + var next = i + if(left < heapCount) { + var lw = heapWeight(left) + if(lw < tw) { + next = left + tw = lw + } + } + if(right < heapCount) { + var rw = heapWeight(right) + if(rw < tw) { + next = right + } + } + if(next === i) { + return i + } + heapSwap(i, next) + i = next + } + } + + //Bubbles element i up the heap + function heapUp(i) { + var w = heapWeight(i) + while(i > 0) { + var parent = heapParent(i) + if(parent >= 0) { + var pw = heapWeight(parent) + if(w < pw) { + heapSwap(i, parent) + i = parent + continue + } + } + return i + } + } + + //Pop minimum element + function heapPop() { + if(heapCount > 0) { + var head = heap[0] + heapSwap(0, heapCount-1) + heapCount -= 1 + heapDown(0) + return head + } + return -1 + } + + //Update heap item i + function heapUpdate(i, w) { + var a = heap[i] + if(weights[a] === w) { + return i + } + weights[a] = -Infinity + heapUp(i) + heapPop() + weights[a] = w + heapCount += 1 + return heapUp(heapCount-1) + } + + //Kills a vertex (assume vertex already removed from heap) + function kill(i) { + if(dead[i]) { + return + } + //Kill vertex + dead[i] = true + //Fixup topology + var s = inv[i] + var t = outv[i] + if(inv[t] >= 0) { + inv[t] = s + } + if(outv[s] >= 0) { + outv[s] = t + } + + //Update weights on s and t + if(index[s] >= 0) { + heapUpdate(index[s], computeWeight(s)) + } + if(index[t] >= 0) { + heapUpdate(index[t], computeWeight(t)) + } + } + + //Initialize weights and heap + var heap = [] + var index = new Array(n) + for(var i=0; i>1; i>=0; --i) { + heapDown(i) + } + + //Kill vertices + while(true) { + var hmin = heapPop() + if((hmin < 0) || (weights[hmin] > minArea)) { + break + } + kill(hmin) + } + + //Build collapsed vertex table + var npositions = [] + for(var i=0; i= 0 && tout >= 0 && tin !== tout) { + var cin = index[tin] + var cout = index[tout] + if(cin !== cout) { + ncells.push([ cin, cout ]) + } + } + }) + + //Normalize result + sc.unique(sc.normalize(ncells)) + + //Return final list of cells + return { + positions: npositions, + edges: ncells + } +} +},{"robust-orientation":284,"simplicial-complex":295}],298:[function(_glvis_,module,exports){ +"use strict" + +module.exports = orderSegments + +var orient = _glvis_("robust-orientation") + +function horizontalOrder(a, b) { + var bl, br + if(b[0][0] < b[1][0]) { + bl = b[0] + br = b[1] + } else if(b[0][0] > b[1][0]) { + bl = b[1] + br = b[0] + } else { + var alo = Math.min(a[0][1], a[1][1]) + var ahi = Math.max(a[0][1], a[1][1]) + var blo = Math.min(b[0][1], b[1][1]) + var bhi = Math.max(b[0][1], b[1][1]) + if(ahi < blo) { + return ahi - blo + } + if(alo > bhi) { + return alo - bhi + } + return ahi - bhi + } + var al, ar + if(a[0][1] < a[1][1]) { + al = a[0] + ar = a[1] + } else { + al = a[1] + ar = a[0] + } + var d = orient(br, bl, al) + if(d) { + return d + } + d = orient(br, bl, ar) + if(d) { + return d + } + return ar - br +} + +function orderSegments(b, a) { + var al, ar + if(a[0][0] < a[1][0]) { + al = a[0] + ar = a[1] + } else if(a[0][0] > a[1][0]) { + al = a[1] + ar = a[0] + } else { + return horizontalOrder(a, b) + } + var bl, br + if(b[0][0] < b[1][0]) { + bl = b[0] + br = b[1] + } else if(b[0][0] > b[1][0]) { + bl = b[1] + br = b[0] + } else { + return -horizontalOrder(b, a) + } + var d1 = orient(al, ar, br) + var d2 = orient(al, ar, bl) + if(d1 < 0) { + if(d2 <= 0) { + return d1 + } + } else if(d1 > 0) { + if(d2 >= 0) { + return d1 + } + } else if(d2) { + return d2 + } + d1 = orient(br, bl, ar) + d2 = orient(br, bl, al) + if(d1 < 0) { + if(d2 <= 0) { + return d1 + } + } else if(d1 > 0) { + if(d2 >= 0) { + return d1 + } + } else if(d2) { + return d2 + } + return ar[0] - br[0] +} +},{"robust-orientation":284}],299:[function(_glvis_,module,exports){ +"use strict" + +module.exports = createSlabDecomposition + +var bounds = _glvis_("binary-search-bounds") +var createRBTree = _glvis_("functional-red-black-tree") +var orient = _glvis_("robust-orientation") +var orderSegments = _glvis_("./lib/order-segments") + +function SlabDecomposition(slabs, coordinates, horizontal) { + this.slabs = slabs + this.coordinates = coordinates + this.horizontal = horizontal +} + +var proto = SlabDecomposition.prototype + +function compareHorizontal(e, y) { + return e.y - y +} + +function searchBucket(root, p) { + var lastNode = null + while(root) { + var seg = root.key + var l, r + if(seg[0][0] < seg[1][0]) { + l = seg[0] + r = seg[1] + } else { + l = seg[1] + r = seg[0] + } + var o = orient(l, r, p) + if(o < 0) { + root = root.left + } else if(o > 0) { + if(p[0] !== seg[1][0]) { + lastNode = root + root = root.right + } else { + var val = searchBucket(root.right, p) + if(val) { + return val + } + root = root.left + } + } else { + if(p[0] !== seg[1][0]) { + return root + } else { + var val = searchBucket(root.right, p) + if(val) { + return val + } + root = root.left + } + } + } + return lastNode +} + +proto.castUp = function(p) { + var bucket = bounds.le(this.coordinates, p[0]) + if(bucket < 0) { + return -1 + } + var root = this.slabs[bucket] + var hitNode = searchBucket(this.slabs[bucket], p) + var lastHit = -1 + if(hitNode) { + lastHit = hitNode.value + } + //Edge case: need to handle horizontal segments (sucks) + if(this.coordinates[bucket] === p[0]) { + var lastSegment = null + if(hitNode) { + lastSegment = hitNode.key + } + if(bucket > 0) { + var otherHitNode = searchBucket(this.slabs[bucket-1], p) + if(otherHitNode) { + if(lastSegment) { + if(orderSegments(otherHitNode.key, lastSegment) > 0) { + lastSegment = otherHitNode.key + lastHit = otherHitNode.value + } + } else { + lastHit = otherHitNode.value + lastSegment = otherHitNode.key + } + } + } + var horiz = this.horizontal[bucket] + if(horiz.length > 0) { + var hbucket = bounds.ge(horiz, p[1], compareHorizontal) + if(hbucket < horiz.length) { + var e = horiz[hbucket] + if(p[1] === e.y) { + if(e.closed) { + return e.index + } else { + while(hbucket < horiz.length-1 && horiz[hbucket+1].y === p[1]) { + hbucket = hbucket+1 + e = horiz[hbucket] + if(e.closed) { + return e.index + } + } + if(e.y === p[1] && !e.start) { + hbucket = hbucket+1 + if(hbucket >= horiz.length) { + return lastHit + } + e = horiz[hbucket] + } + } + } + //Check if e is above/below last segment + if(e.start) { + if(lastSegment) { + var o = orient(lastSegment[0], lastSegment[1], [p[0], e.y]) + if(lastSegment[0][0] > lastSegment[1][0]) { + o = -o + } + if(o > 0) { + lastHit = e.index + } + } else { + lastHit = e.index + } + } else if(e.y !== p[1]) { + lastHit = e.index + } + } + } + } + return lastHit +} + +function IntervalSegment(y, index, start, closed) { + this.y = y + this.index = index + this.start = start + this.closed = closed +} + +function Event(x, segment, create, index) { + this.x = x + this.segment = segment + this.create = create + this.index = index +} + + +function createSlabDecomposition(segments) { + var numSegments = segments.length + var numEvents = 2 * numSegments + var events = new Array(numEvents) + for(var i=0; i 1.0) { + t = 1.0 + } + var ti = 1.0 - t + var n = a.length + var r = new Array(n) + for(var i=0; i 0) || (a > 0 && b < 0)) { + var p = lerpW(s, b, t, a) + pos.push(p) + neg.push(p.slice()) + } + if(b < 0) { + neg.push(t.slice()) + } else if(b > 0) { + pos.push(t.slice()) + } else { + pos.push(t.slice()) + neg.push(t.slice()) + } + a = b + } + return { positive: pos, negative: neg } +} + +function positive(points, plane) { + var pos = [] + var a = planeT(points[points.length-1], plane) + for(var s=points[points.length-1], t=points[0], i=0; i 0) || (a > 0 && b < 0)) { + pos.push(lerpW(s, b, t, a)) + } + if(b >= 0) { + pos.push(t.slice()) + } + a = b + } + return pos +} + +function negative(points, plane) { + var neg = [] + var a = planeT(points[points.length-1], plane) + for(var s=points[points.length-1], t=points[0], i=0; i 0) || (a > 0 && b < 0)) { + neg.push(lerpW(s, b, t, a)) + } + if(b <= 0) { + neg.push(t.slice()) + } + a = b + } + return neg +} +},{"robust-dot-product":281,"robust-sum":289}],301:[function(_glvis_,module,exports){ +/* global window, exports, define */ + +!function() { + 'use strict' + + var re = { + not_string: /[^s]/, + not_bool: /[^t]/, + not_type: /[^T]/, + not_primitive: /[^v]/, + number: /[diefg]/, + numeric_arg: /[bcdiefguxX]/, + json: /[j]/, + not_json: /[^j]/, + text: /^[^\x25]+/, + modulo: /^\x25{2}/, + placeholder: /^\x25(?:([1-9]\d*)\$|\(([^)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-gijostTuvxX])/, + key: /^([a-z_][a-z_\d]*)/i, + key_access: /^\.([a-z_][a-z_\d]*)/i, + index_access: /^\[(\d+)\]/, + sign: /^[+-]/ + } + + function sprintf(key) { + // `arguments` is not an array, but should be fine for this call + return sprintf_format(sprintf_parse(key), arguments) + } + + function vsprintf(fmt, argv) { + return sprintf.apply(null, [fmt].concat(argv || [])) + } + + function sprintf_format(parse_tree, argv) { + var cursor = 1, tree_length = parse_tree.length, arg, output = '', i, k, ph, pad, pad_character, pad_length, is_positive, sign + for (i = 0; i < tree_length; i++) { + if (typeof parse_tree[i] === 'string') { + output += parse_tree[i] + } + else if (typeof parse_tree[i] === 'object') { + ph = parse_tree[i] // convenience purposes only + if (ph.keys) { // keyword argument + arg = argv[cursor] + for (k = 0; k < ph.keys.length; k++) { + if (arg == undefined) { + throw new Error(sprintf('[sprintf] Cannot access property "%s" of undefined value "%s"', ph.keys[k], ph.keys[k-1])) + } + arg = arg[ph.keys[k]] + } + } + else if (ph.param_no) { // positional argument (explicit) + arg = argv[ph.param_no] + } + else { // positional argument (implicit) + arg = argv[cursor++] + } + + if (re.not_type.test(ph.type) && re.not_primitive.test(ph.type) && arg instanceof Function) { + arg = arg() + } + + if (re.numeric_arg.test(ph.type) && (typeof arg !== 'number' && isNaN(arg))) { + throw new TypeError(sprintf('[sprintf] expecting number but found %T', arg)) + } + + if (re.number.test(ph.type)) { + is_positive = arg >= 0 + } + + switch (ph.type) { + case 'b': + arg = parseInt(arg, 10).toString(2) + break + case 'c': + arg = String.fromCharCode(parseInt(arg, 10)) + break + case 'd': + case 'i': + arg = parseInt(arg, 10) + break + case 'j': + arg = JSON.stringify(arg, null, ph.width ? parseInt(ph.width) : 0) + break + case 'e': + arg = ph.precision ? parseFloat(arg).toExponential(ph.precision) : parseFloat(arg).toExponential() + break + case 'f': + arg = ph.precision ? parseFloat(arg).toFixed(ph.precision) : parseFloat(arg) + break + case 'g': + arg = ph.precision ? String(Number(arg.toPrecision(ph.precision))) : parseFloat(arg) + break + case 'o': + arg = (parseInt(arg, 10) >>> 0).toString(8) + break + case 's': + arg = String(arg) + arg = (ph.precision ? arg.substring(0, ph.precision) : arg) + break + case 't': + arg = String(!!arg) + arg = (ph.precision ? arg.substring(0, ph.precision) : arg) + break + case 'T': + arg = Object.prototype.toString.call(arg).slice(8, -1).toLowerCase() + arg = (ph.precision ? arg.substring(0, ph.precision) : arg) + break + case 'u': + arg = parseInt(arg, 10) >>> 0 + break + case 'v': + arg = arg.valueOf() + arg = (ph.precision ? arg.substring(0, ph.precision) : arg) + break + case 'x': + arg = (parseInt(arg, 10) >>> 0).toString(16) + break + case 'X': + arg = (parseInt(arg, 10) >>> 0).toString(16).toUpperCase() + break + } + if (re.json.test(ph.type)) { + output += arg + } + else { + if (re.number.test(ph.type) && (!is_positive || ph.sign)) { + sign = is_positive ? '+' : '-' + arg = arg.toString().replace(re.sign, '') + } + else { + sign = '' + } + pad_character = ph.pad_char ? ph.pad_char === '0' ? '0' : ph.pad_char.charAt(1) : ' ' + pad_length = ph.width - (sign + arg).length + pad = ph.width ? (pad_length > 0 ? pad_character.repeat(pad_length) : '') : '' + output += ph.align ? sign + arg + pad : (pad_character === '0' ? sign + pad + arg : pad + sign + arg) + } + } + } + return output + } + + var sprintf_cache = Object.create(null) + + function sprintf_parse(fmt) { + if (sprintf_cache[fmt]) { + return sprintf_cache[fmt] + } + + var _fmt = fmt, match, parse_tree = [], arg_names = 0 + while (_fmt) { + if ((match = re.text.exec(_fmt)) !== null) { + parse_tree.push(match[0]) + } + else if ((match = re.modulo.exec(_fmt)) !== null) { + parse_tree.push('%') + } + else if ((match = re.placeholder.exec(_fmt)) !== null) { + if (match[2]) { + arg_names |= 1 + var field_list = [], replacement_field = match[2], field_match = [] + if ((field_match = re.key.exec(replacement_field)) !== null) { + field_list.push(field_match[1]) + while ((replacement_field = replacement_field.substring(field_match[0].length)) !== '') { + if ((field_match = re.key_access.exec(replacement_field)) !== null) { + field_list.push(field_match[1]) + } + else if ((field_match = re.index_access.exec(replacement_field)) !== null) { + field_list.push(field_match[1]) + } + else { + throw new SyntaxError('[sprintf] failed to parse named argument key') + } + } + } + else { + throw new SyntaxError('[sprintf] failed to parse named argument key') + } + match[2] = field_list + } + else { + arg_names |= 2 + } + if (arg_names === 3) { + throw new Error('[sprintf] mixing positional and named placeholders is not (yet) supported') + } + + parse_tree.push( + { + placeholder: match[0], + param_no: match[1], + keys: match[2], + sign: match[3], + pad_char: match[4], + align: match[5], + width: match[6], + precision: match[7], + type: match[8] + } + ) + } + else { + throw new SyntaxError('[sprintf] unexpected placeholder') + } + _fmt = _fmt.substring(match[0].length) + } + return sprintf_cache[fmt] = parse_tree + } + + /** + * export to either browser or node.js + */ + /* eslint-disable quote-props */ + if (typeof exports !== 'undefined') { + exports['sprintf'] = sprintf + exports['vsprintf'] = vsprintf + } + if (typeof window !== 'undefined') { + window['sprintf'] = sprintf + window['vsprintf'] = vsprintf + + if (typeof define === 'function' && define['amd']) { + define(function() { + return { + 'sprintf': sprintf, + 'vsprintf': vsprintf + } + }) + } + } + /* eslint-enable quote-props */ +}(); // eslint-disable-line + +},{}],302:[function(_glvis_,module,exports){ +"use strict" + +module.exports = surfaceNets + +var generateContourExtractor = _glvis_("ndarray-extract-contour") +var zeroCrossings = _glvis_("zero-crossings") + +var allFns = { + "2d": function (genContour, order, dtype) { + var contour = genContour({ + order: order, + scalarArguments: 3, + getters: dtype === "generic" ? [0] : undefined, + phase: function phaseFunc(p, a, b, c) { + return (p > c) | 0; + }, + vertex: function vertexFunc(d0, d1, v0, v1, v2, v3, p0, p1, p2, p3, a, b, c) { + var m = ((p0 << 0) + (p1 << 1) + (p2 << 2) + (p3 << 3)) | 0; + if (m === 0 || m === 15) { + return; + } + switch (m) { + case 0: + a.push([d0 - 0.5, d1 - 0.5]); + break; + case 1: + a.push([d0 - 0.25 - (0.25 * (v1 + v0 - 2 * c)) / (v0 - v1), d1 - 0.25 - (0.25 * (v2 + v0 - 2 * c)) / (v0 - v2)]); + break; + case 2: + a.push([d0 - 0.75 - (0.25 * (-v1 - v0 + 2 * c)) / (v1 - v0), d1 - 0.25 - (0.25 * (v3 + v1 - 2 * c)) / (v1 - v3)]); + break; + case 3: + a.push([d0 - 0.5, d1 - 0.5 - (0.5 * (v2 + v0 + v3 + v1 - 4 * c)) / (v0 - v2 + v1 - v3)]); + break; + case 4: + a.push([d0 - 0.25 - (0.25 * (v3 + v2 - 2 * c)) / (v2 - v3), d1 - 0.75 - (0.25 * (-v2 - v0 + 2 * c)) / (v2 - v0)]); + break; + case 5: + a.push([d0 - 0.5 - (0.5 * (v1 + v0 + v3 + v2 - 4 * c)) / (v0 - v1 + v2 - v3), d1 - 0.5]); + break; + case 6: + a.push([d0 - 0.5 - (0.25 * (-v1 - v0 + v3 + v2)) / (v1 - v0 + v2 - v3), d1 - 0.5 - (0.25 * (-v2 - v0 + v3 + v1)) / (v2 - v0 + v1 - v3)]); + break; + case 7: + a.push([d0 - 0.75 - (0.25 * (v3 + v2 - 2 * c)) / (v2 - v3), d1 - 0.75 - (0.25 * (v3 + v1 - 2 * c)) / (v1 - v3)]); + break; + case 8: + a.push([d0 - 0.75 - (0.25 * (-v3 - v2 + 2 * c)) / (v3 - v2), d1 - 0.75 - (0.25 * (-v3 - v1 + 2 * c)) / (v3 - v1)]); + break; + case 9: + a.push([d0 - 0.5 - (0.25 * (v1 + v0 + -v3 - v2)) / (v0 - v1 + v3 - v2), d1 - 0.5 - (0.25 * (v2 + v0 + -v3 - v1)) / (v0 - v2 + v3 - v1)]); + break; + case 10: + a.push([d0 - 0.5 - (0.5 * (-v1 - v0 + -v3 - v2 + 4 * c)) / (v1 - v0 + v3 - v2), d1 - 0.5]); + break; + case 11: + a.push([d0 - 0.25 - (0.25 * (-v3 - v2 + 2 * c)) / (v3 - v2), d1 - 0.75 - (0.25 * (v2 + v0 - 2 * c)) / (v0 - v2)]); + break; + case 12: + a.push([d0 - 0.5, d1 - 0.5 - (0.5 * (-v2 - v0 + -v3 - v1 + 4 * c)) / (v2 - v0 + v3 - v1)]); + break; + case 13: + a.push([d0 - 0.75 - (0.25 * (v1 + v0 - 2 * c)) / (v0 - v1), d1 - 0.25 - (0.25 * (-v3 - v1 + 2 * c)) / (v3 - v1)]); + break; + case 14: + a.push([d0 - 0.25 - (0.25 * (-v1 - v0 + 2 * c)) / (v1 - v0), d1 - 0.25 - (0.25 * (-v2 - v0 + 2 * c)) / (v2 - v0)]); + break; + case 15: + a.push([d0 - 0.5, d1 - 0.5]); + break; + } + }, + cell: function cellFunc(v0, v1, c0, c1, p0, p1, a, b, c) { + if (p0) { + b.push([v0, v1]); + } else { + b.push([v1, v0]); + } + }, + }); + return function (array, level) { + var verts = [], + cells = []; + contour(array, verts, cells, level); + return { positions: verts, cells: cells }; + }; + } +} + +function buildSurfaceNets(order, dtype) { + var inKey = order.length + 'd' + var fn = allFns[inKey] + if(fn) return fn(generateContourExtractor, order, dtype) +} + +//1D case: Need to handle specially +function mesh1D(array, level) { + var zc = zeroCrossings(array, level) + var n = zc.length + var npos = new Array(n) + var ncel = new Array(n) + for(var i=0; i0) { + shapeX += 0.02 + } + } + + var data = new Float32Array(bufferSize) + var ptr = 0 + var xOffset = -0.5 * shapeX + for(var i=0; i Math.max(vy, vz)) { + u[2] = 1 + } else if(vy > Math.max(vx, vz)) { + u[0] = 1 + } else { + u[1] = 1 + } + + var vv = 0 + var uv = 0 + for(var i=0; i<3; ++i ) { + vv += v[i] * v[i] + uv += u[i] * v[i] + } + for(var i=0; i<3; ++i) { + u[i] -= (uv / vv) * v[i] + } + normalize3(u, u) + return u +} + +function TurntableController(zoomMin, zoomMax, center, up, right, radius, theta, phi) { + this.center = filterVector(center) + this.up = filterVector(up) + this.right = filterVector(right) + this.radius = filterVector([radius]) + this.angle = filterVector([theta, phi]) + this.angle.bounds = [[-Infinity,-Math.PI/2], [Infinity,Math.PI/2]] + this.setDistanceLimits(zoomMin, zoomMax) + + this.computedCenter = this.center.curve(0) + this.computedUp = this.up.curve(0) + this.computedRight = this.right.curve(0) + this.computedRadius = this.radius.curve(0) + this.computedAngle = this.angle.curve(0) + this.computedToward = [0,0,0] + this.computedEye = [0,0,0] + this.computedMatrix = new Array(16) + for(var i=0; i<16; ++i) { + this.computedMatrix[i] = 0.5 + } + + this.recalcMatrix(0) +} + +var proto = TurntableController.prototype + +proto.setDistanceLimits = function(minDist, maxDist) { + if(minDist > 0) { + minDist = Math.log(minDist) + } else { + minDist = -Infinity + } + if(maxDist > 0) { + maxDist = Math.log(maxDist) + } else { + maxDist = Infinity + } + maxDist = Math.max(maxDist, minDist) + this.radius.bounds[0][0] = minDist + this.radius.bounds[1][0] = maxDist +} + +proto.getDistanceLimits = function(out) { + var bounds = this.radius.bounds[0] + if(out) { + out[0] = Math.exp(bounds[0][0]) + out[1] = Math.exp(bounds[1][0]) + return out + } + return [ Math.exp(bounds[0][0]), Math.exp(bounds[1][0]) ] +} + +proto.recalcMatrix = function(t) { + //Recompute curves + this.center.curve(t) + this.up.curve(t) + this.right.curve(t) + this.radius.curve(t) + this.angle.curve(t) + + //Compute frame for camera matrix + var up = this.computedUp + var right = this.computedRight + var uu = 0.0 + var ur = 0.0 + for(var i=0; i<3; ++i) { + ur += up[i] * right[i] + uu += up[i] * up[i] + } + var ul = Math.sqrt(uu) + var rr = 0.0 + for(var i=0; i<3; ++i) { + right[i] -= up[i] * ur / uu + rr += right[i] * right[i] + up[i] /= ul + } + var rl = Math.sqrt(rr) + for(var i=0; i<3; ++i) { + right[i] /= rl + } + + //Compute toward vector + var toward = this.computedToward + cross(toward, up, right) + normalize3(toward, toward) + + //Compute angular parameters + var radius = Math.exp(this.computedRadius[0]) + var theta = this.computedAngle[0] + var phi = this.computedAngle[1] + + var ctheta = Math.cos(theta) + var stheta = Math.sin(theta) + var cphi = Math.cos(phi) + var sphi = Math.sin(phi) + + var center = this.computedCenter + + var wx = ctheta * cphi + var wy = stheta * cphi + var wz = sphi + + var sx = -ctheta * sphi + var sy = -stheta * sphi + var sz = cphi + + var eye = this.computedEye + var mat = this.computedMatrix + for(var i=0; i<3; ++i) { + var x = wx * right[i] + wy * toward[i] + wz * up[i] + mat[4*i+1] = sx * right[i] + sy * toward[i] + sz * up[i] + mat[4*i+2] = x + mat[4*i+3] = 0.0 + } + + var ax = mat[1] + var ay = mat[5] + var az = mat[9] + var bx = mat[2] + var by = mat[6] + var bz = mat[10] + var cx = ay * bz - az * by + var cy = az * bx - ax * bz + var cz = ax * by - ay * bx + var cl = len3(cx, cy, cz) + cx /= cl + cy /= cl + cz /= cl + mat[0] = cx + mat[4] = cy + mat[8] = cz + + for(var i=0; i<3; ++i) { + eye[i] = center[i] + mat[2+4*i]*radius + } + + for(var i=0; i<3; ++i) { + var rr = 0.0 + for(var j=0; j<3; ++j) { + rr += mat[i+4*j] * eye[j] + } + mat[12+i] = -rr + } + mat[15] = 1.0 +} + +proto.getMatrix = function(t, result) { + this.recalcMatrix(t) + var mat = this.computedMatrix + if(result) { + for(var i=0; i<16; ++i) { + result[i] = mat[i] + } + return result + } + return mat +} + +var zAxis = [0,0,0] +proto.rotate = function(t, dtheta, dphi, droll) { + this.angle.move(t, dtheta, dphi) + if(droll) { + this.recalcMatrix(t) + + var mat = this.computedMatrix + zAxis[0] = mat[2] + zAxis[1] = mat[6] + zAxis[2] = mat[10] + + var up = this.computedUp + var right = this.computedRight + var toward = this.computedToward + + for(var i=0; i<3; ++i) { + mat[4*i] = up[i] + mat[4*i+1] = right[i] + mat[4*i+2] = toward[i] + } + rotateM(mat, mat, droll, zAxis) + for(var i=0; i<3; ++i) { + up[i] = mat[4*i] + right[i] = mat[4*i+1] + } + + this.up.set(t, up[0], up[1], up[2]) + this.right.set(t, right[0], right[1], right[2]) + } +} + +proto.pan = function(t, dx, dy, dz) { + dx = dx || 0.0 + dy = dy || 0.0 + dz = dz || 0.0 + + this.recalcMatrix(t) + var mat = this.computedMatrix + + var dist = Math.exp(this.computedRadius[0]) + + var ux = mat[1] + var uy = mat[5] + var uz = mat[9] + var ul = len3(ux, uy, uz) + ux /= ul + uy /= ul + uz /= ul + + var rx = mat[0] + var ry = mat[4] + var rz = mat[8] + var ru = rx * ux + ry * uy + rz * uz + rx -= ux * ru + ry -= uy * ru + rz -= uz * ru + var rl = len3(rx, ry, rz) + rx /= rl + ry /= rl + rz /= rl + + var vx = rx * dx + ux * dy + var vy = ry * dx + uy * dy + var vz = rz * dx + uz * dy + this.center.move(t, vx, vy, vz) + + //Update z-component of radius + var radius = Math.exp(this.computedRadius[0]) + radius = Math.max(1e-4, radius + dz) + this.radius.set(t, Math.log(radius)) +} + +proto.translate = function(t, dx, dy, dz) { + this.center.move(t, + dx||0.0, + dy||0.0, + dz||0.0) +} + +//Recenters the coordinate axes +proto.setMatrix = function(t, mat, axes, noSnap) { + + //Get the axes for tare + var ushift = 1 + if(typeof axes === 'number') { + ushift = (axes)|0 + } + if(ushift < 0 || ushift > 3) { + ushift = 1 + } + var vshift = (ushift + 2) % 3 + var fshift = (ushift + 1) % 3 + + //Recompute state for new t value + if(!mat) { + this.recalcMatrix(t) + mat = this.computedMatrix + } + + //Get right and up vectors + var ux = mat[ushift] + var uy = mat[ushift+4] + var uz = mat[ushift+8] + if(!noSnap) { + var ul = len3(ux, uy, uz) + ux /= ul + uy /= ul + uz /= ul + } else { + var ax = Math.abs(ux) + var ay = Math.abs(uy) + var az = Math.abs(uz) + var am = Math.max(ax,ay,az) + if(ax === am) { + ux = (ux < 0) ? -1 : 1 + uy = uz = 0 + } else if(az === am) { + uz = (uz < 0) ? -1 : 1 + ux = uy = 0 + } else { + uy = (uy < 0) ? -1 : 1 + ux = uz = 0 + } + } + + var rx = mat[vshift] + var ry = mat[vshift+4] + var rz = mat[vshift+8] + var ru = rx * ux + ry * uy + rz * uz + rx -= ux * ru + ry -= uy * ru + rz -= uz * ru + var rl = len3(rx, ry, rz) + rx /= rl + ry /= rl + rz /= rl + + var fx = uy * rz - uz * ry + var fy = uz * rx - ux * rz + var fz = ux * ry - uy * rx + var fl = len3(fx, fy, fz) + fx /= fl + fy /= fl + fz /= fl + + this.center.jump(t, ex, ey, ez) + this.radius.idle(t) + this.up.jump(t, ux, uy, uz) + this.right.jump(t, rx, ry, rz) + + var phi, theta + if(ushift === 2) { + var cx = mat[1] + var cy = mat[5] + var cz = mat[9] + var cr = cx * rx + cy * ry + cz * rz + var cf = cx * fx + cy * fy + cz * fz + if(tu < 0) { + phi = -Math.PI/2 + } else { + phi = Math.PI/2 + } + theta = Math.atan2(cf, cr) + } else { + var tx = mat[2] + var ty = mat[6] + var tz = mat[10] + var tu = tx * ux + ty * uy + tz * uz + var tr = tx * rx + ty * ry + tz * rz + var tf = tx * fx + ty * fy + tz * fz + + phi = Math.asin(clamp1(tu)) + theta = Math.atan2(tf, tr) + } + + this.angle.jump(t, theta, phi) + + this.recalcMatrix(t) + var dx = mat[2] + var dy = mat[6] + var dz = mat[10] + + var imat = this.computedMatrix + invert44(imat, mat) + var w = imat[15] + var ex = imat[12] / w + var ey = imat[13] / w + var ez = imat[14] / w + + var gs = Math.exp(this.computedRadius[0]) + this.center.jump(t, ex-dx*gs, ey-dy*gs, ez-dz*gs) +} + +proto.lastT = function() { + return Math.max( + this.center.lastT(), + this.up.lastT(), + this.right.lastT(), + this.radius.lastT(), + this.angle.lastT()) +} + +proto.idle = function(t) { + this.center.idle(t) + this.up.idle(t) + this.right.idle(t) + this.radius.idle(t) + this.angle.idle(t) +} + +proto.flush = function(t) { + this.center.flush(t) + this.up.flush(t) + this.right.flush(t) + this.radius.flush(t) + this.angle.flush(t) +} + +proto.setDistance = function(t, d) { + if(d > 0) { + this.radius.set(t, Math.log(d)) + } +} + +proto.lookAt = function(t, eye, center, up) { + this.recalcMatrix(t) + + eye = eye || this.computedEye + center = center || this.computedCenter + up = up || this.computedUp + + var ux = up[0] + var uy = up[1] + var uz = up[2] + var ul = len3(ux, uy, uz) + if(ul < 1e-6) { + return + } + ux /= ul + uy /= ul + uz /= ul + + var tx = eye[0] - center[0] + var ty = eye[1] - center[1] + var tz = eye[2] - center[2] + var tl = len3(tx, ty, tz) + if(tl < 1e-6) { + return + } + tx /= tl + ty /= tl + tz /= tl + + var right = this.computedRight + var rx = right[0] + var ry = right[1] + var rz = right[2] + var ru = ux*rx + uy*ry + uz*rz + rx -= ru * ux + ry -= ru * uy + rz -= ru * uz + var rl = len3(rx, ry, rz) + + if(rl < 0.01) { + rx = uy * tz - uz * ty + ry = uz * tx - ux * tz + rz = ux * ty - uy * tx + rl = len3(rx, ry, rz) + if(rl < 1e-6) { + return + } + } + rx /= rl + ry /= rl + rz /= rl + + this.up.set(t, ux, uy, uz) + this.right.set(t, rx, ry, rz) + this.center.set(t, center[0], center[1], center[2]) + this.radius.set(t, Math.log(tl)) + + var fx = uy * rz - uz * ry + var fy = uz * rx - ux * rz + var fz = ux * ry - uy * rx + var fl = len3(fx, fy, fz) + fx /= fl + fy /= fl + fz /= fl + + var tu = ux*tx + uy*ty + uz*tz + var tr = rx*tx + ry*ty + rz*tz + var tf = fx*tx + fy*ty + fz*tz + + var phi = Math.asin(clamp1(tu)) + var theta = Math.atan2(tf, tr) + + var angleState = this.angle._state + var lastTheta = angleState[angleState.length-1] + var lastPhi = angleState[angleState.length-2] + lastTheta = lastTheta % (2.0 * Math.PI) + var dp = Math.abs(lastTheta + 2.0 * Math.PI - theta) + var d0 = Math.abs(lastTheta - theta) + var dn = Math.abs(lastTheta - 2.0 * Math.PI - theta) + if(dp < d0) { + lastTheta += 2.0 * Math.PI + } + if(dn < d0) { + lastTheta -= 2.0 * Math.PI + } + + this.angle.jump(this.angle.lastT(), lastTheta, lastPhi) + this.angle.set(t, theta, phi) +} + +function createTurntableController(options) { + options = options || {} + + var center = options.center || [0,0,0] + var up = options.up || [0,1,0] + var right = options.right || findOrthoPair(up) + var radius = options.radius || 1.0 + var theta = options.theta || 0.0 + var phi = options.phi || 0.0 + + center = [].slice.call(center, 0, 3) + + up = [].slice.call(up, 0, 3) + normalize3(up, up) + + right = [].slice.call(right, 0, 3) + normalize3(right, right) + + if('eye' in options) { + var eye = options.eye + var toward = [ + eye[0]-center[0], + eye[1]-center[1], + eye[2]-center[2] + ] + cross(right, toward, up) + if(len3(right[0], right[1], right[2]) < 1e-6) { + right = findOrthoPair(up) + } else { + normalize3(right, right) + } + + radius = len3(toward[0], toward[1], toward[2]) + + var ut = dot3(up, toward) / radius + var rt = dot3(right, toward) / radius + phi = Math.acos(ut) + theta = Math.acos(rt) + } + + //Use logarithmic coordinates for radius + radius = Math.log(radius) + + //Return the controller + return new TurntableController( + options.zoomMin, + options.zoomMax, + center, + up, + right, + radius, + theta, + phi) +} +},{"filtered-vector":68,"gl-mat4/invert":98,"gl-mat4/rotate":103,"gl-vec3/cross":157,"gl-vec3/dot":162,"gl-vec3/normalize":179}],306:[function(_glvis_,module,exports){ +"use strict" + +module.exports = twoProduct + +var SPLITTER = +(Math.pow(2, 27) + 1.0) + +function twoProduct(a, b, result) { + var x = a * b + + var c = SPLITTER * a + var abig = c - a + var ahi = c - abig + var alo = a - ahi + + var d = SPLITTER * b + var bbig = d - b + var bhi = d - bbig + var blo = b - bhi + + var err1 = x - (ahi * bhi) + var err2 = err1 - (alo * bhi) + var err3 = err2 - (ahi * blo) + + var y = alo * blo - err3 + + if(result) { + result[0] = y + result[1] = x + return result + } + + return [ y, x ] +} +},{}],307:[function(_glvis_,module,exports){ +"use strict" + +module.exports = fastTwoSum + +function fastTwoSum(a, b, result) { + var x = a + b + var bv = x - a + var av = x - bv + var br = b - bv + var ar = a - av + if(result) { + result[0] = ar + br + result[1] = x + return result + } + return [ar+br, x] +} +},{}],308:[function(_glvis_,module,exports){ +(function (global){(function (){ +'use strict' + +var bits = _glvis_('bit-twiddle') +var dup = _glvis_('dup') +var Buffer = _glvis_('buffer').Buffer + +//Legacy pool support +if(!global.__TYPEDARRAY_POOL) { + global.__TYPEDARRAY_POOL = { + UINT8 : dup([32, 0]) + , UINT16 : dup([32, 0]) + , UINT32 : dup([32, 0]) + , BIGUINT64 : dup([32, 0]) + , INT8 : dup([32, 0]) + , INT16 : dup([32, 0]) + , INT32 : dup([32, 0]) + , BIGINT64 : dup([32, 0]) + , FLOAT : dup([32, 0]) + , DOUBLE : dup([32, 0]) + , DATA : dup([32, 0]) + , UINT8C : dup([32, 0]) + , BUFFER : dup([32, 0]) + } +} + +var hasUint8C = (typeof Uint8ClampedArray) !== 'undefined' +var hasBigUint64 = (typeof BigUint64Array) !== 'undefined' +var hasBigInt64 = (typeof BigInt64Array) !== 'undefined' +var POOL = global.__TYPEDARRAY_POOL + +//Upgrade pool +if(!POOL.UINT8C) { + POOL.UINT8C = dup([32, 0]) +} +if(!POOL.BIGUINT64) { + POOL.BIGUINT64 = dup([32, 0]) +} +if(!POOL.BIGINT64) { + POOL.BIGINT64 = dup([32, 0]) +} +if(!POOL.BUFFER) { + POOL.BUFFER = dup([32, 0]) +} + +//New technique: Only allocate from ArrayBufferView and Buffer +var DATA = POOL.DATA + , BUFFER = POOL.BUFFER + +exports.free = function free(array) { + if(Buffer.isBuffer(array)) { + BUFFER[bits.log2(array.length)].push(array) + } else { + if(Object.prototype.toString.call(array) !== '[object ArrayBuffer]') { + array = array.buffer + } + if(!array) { + return + } + var n = array.length || array.byteLength + var log_n = bits.log2(n)|0 + DATA[log_n].push(array) + } +} + +function freeArrayBuffer(buffer) { + if(!buffer) { + return + } + var n = buffer.length || buffer.byteLength + var log_n = bits.log2(n) + DATA[log_n].push(buffer) +} + +function freeTypedArray(array) { + freeArrayBuffer(array.buffer) +} + +exports.freeUint8 = +exports.freeUint16 = +exports.freeUint32 = +exports.freeBigUint64 = +exports.freeInt8 = +exports.freeInt16 = +exports.freeInt32 = +exports.freeBigInt64 = +exports.freeFloat32 = +exports.freeFloat = +exports.freeFloat64 = +exports.freeDouble = +exports.freeUint8Clamped = +exports.freeDataView = freeTypedArray + +exports.freeArrayBuffer = freeArrayBuffer + +exports.freeBuffer = function freeBuffer(array) { + BUFFER[bits.log2(array.length)].push(array) +} + +exports.malloc = function malloc(n, dtype) { + if(dtype === undefined || dtype === 'arraybuffer') { + return mallocArrayBuffer(n) + } else { + switch(dtype) { + case 'uint8': + return mallocUint8(n) + case 'uint16': + return mallocUint16(n) + case 'uint32': + return mallocUint32(n) + case 'int8': + return mallocInt8(n) + case 'int16': + return mallocInt16(n) + case 'int32': + return mallocInt32(n) + case 'float': + case 'float32': + return mallocFloat(n) + case 'double': + case 'float64': + return mallocDouble(n) + case 'uint8_clamped': + return mallocUint8Clamped(n) + case 'bigint64': + return mallocBigInt64(n) + case 'biguint64': + return mallocBigUint64(n) + case 'buffer': + return mallocBuffer(n) + case 'data': + case 'dataview': + return mallocDataView(n) + + default: + return null + } + } + return null +} + +function mallocArrayBuffer(n) { + var n = bits.nextPow2(n) + var log_n = bits.log2(n) + var d = DATA[log_n] + if(d.length > 0) { + return d.pop() + } + return new ArrayBuffer(n) +} +exports.mallocArrayBuffer = mallocArrayBuffer + +function mallocUint8(n) { + return new Uint8Array(mallocArrayBuffer(n), 0, n) +} +exports.mallocUint8 = mallocUint8 + +function mallocUint16(n) { + return new Uint16Array(mallocArrayBuffer(2*n), 0, n) +} +exports.mallocUint16 = mallocUint16 + +function mallocUint32(n) { + return new Uint32Array(mallocArrayBuffer(4*n), 0, n) +} +exports.mallocUint32 = mallocUint32 + +function mallocInt8(n) { + return new Int8Array(mallocArrayBuffer(n), 0, n) +} +exports.mallocInt8 = mallocInt8 + +function mallocInt16(n) { + return new Int16Array(mallocArrayBuffer(2*n), 0, n) +} +exports.mallocInt16 = mallocInt16 + +function mallocInt32(n) { + return new Int32Array(mallocArrayBuffer(4*n), 0, n) +} +exports.mallocInt32 = mallocInt32 + +function mallocFloat(n) { + return new Float32Array(mallocArrayBuffer(4*n), 0, n) +} +exports.mallocFloat32 = exports.mallocFloat = mallocFloat + +function mallocDouble(n) { + return new Float64Array(mallocArrayBuffer(8*n), 0, n) +} +exports.mallocFloat64 = exports.mallocDouble = mallocDouble + +function mallocUint8Clamped(n) { + if(hasUint8C) { + return new Uint8ClampedArray(mallocArrayBuffer(n), 0, n) + } else { + return mallocUint8(n) + } +} +exports.mallocUint8Clamped = mallocUint8Clamped + +function mallocBigUint64(n) { + if(hasBigUint64) { + return new BigUint64Array(mallocArrayBuffer(8*n), 0, n) + } else { + return null; + } +} +exports.mallocBigUint64 = mallocBigUint64 + +function mallocBigInt64(n) { + if (hasBigInt64) { + return new BigInt64Array(mallocArrayBuffer(8*n), 0, n) + } else { + return null; + } +} +exports.mallocBigInt64 = mallocBigInt64 + +function mallocDataView(n) { + return new DataView(mallocArrayBuffer(n), 0, n) +} +exports.mallocDataView = mallocDataView + +function mallocBuffer(n) { + n = bits.nextPow2(n) + var log_n = bits.log2(n) + var cache = BUFFER[log_n] + if(cache.length > 0) { + return cache.pop() + } + return new Buffer(n) +} +exports.mallocBuffer = mallocBuffer + +exports.clearCache = function clearCache() { + for(var i=0; i<32; ++i) { + POOL.UINT8[i].length = 0 + POOL.UINT16[i].length = 0 + POOL.UINT32[i].length = 0 + POOL.INT8[i].length = 0 + POOL.INT16[i].length = 0 + POOL.INT32[i].length = 0 + POOL.FLOAT[i].length = 0 + POOL.DOUBLE[i].length = 0 + POOL.BIGUINT64[i].length = 0 + POOL.BIGINT64[i].length = 0 + POOL.UINT8C[i].length = 0 + DATA[i].length = 0 + BUFFER[i].length = 0 + } +} + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"bit-twiddle":32,"buffer":3,"dup":65}],309:[function(_glvis_,module,exports){ +"use strict"; "use restrict"; + +module.exports = UnionFind; + +function UnionFind(count) { + this.roots = new Array(count); + this.ranks = new Array(count); + + for(var i=0; i" + var clsTag = "" + + var nOPN = opnTag.length + var nCLS = clsTag.length + + var isRecursive = (TAG_CHR[0] === CHR_super0) || + (TAG_CHR[0] === CHR_sub0); + + var a = 0 + var b = -nCLS + while (a > -1) { + a = str.indexOf(opnTag, a) + if(a === -1) break + + b = str.indexOf(clsTag, a + nOPN) + if(b === -1) break + + if(b <= a) break + + for(var i = a; i < b + nCLS; ++i){ + if((i < a + nOPN) || (i >= b)) { + map[i] = null + str = str.substr(0, i) + " " + str.substr(i + 1) + } else { + if(map[i] !== null) { + var pos = map[i].indexOf(TAG_CHR[0]) + if(pos === -1) { + map[i] += TAG_CHR + } else { // i.e. to handle multiple sub/super-scripts + if(isRecursive) { + // i.e to increase the sub/sup number + map[i] = map[i].substr(0, pos + 1) + (1 + parseInt(map[i][pos + 1])) + map[i].substr(pos + 2) + } + } + } + } + } + + var start = a + nOPN + var remainingStr = str.substr(start, b - start) + + var c = remainingStr.indexOf(opnTag) + if(c !== -1) a = c + else a = b + nCLS + } + + return map +} + +function transformPositions(positions, options, size) { + var align = options.textAlign || "start" + var baseline = options.textBaseline || "alphabetic" + + var lo = [1<<30, 1<<30] + var hi = [0,0] + var n = positions.length + for(var i=0; i/g, '\n') // replace
tags with \n in the string + } else { + rawString = rawString.replace(/\/g, ' ') // don't accept
tags in the input and replace with space in this case + } + + var activeStyle = "" + var map = [] + for(j = 0; j < rawString.length; ++j) { + map[j] = activeStyle + } + + if(styletags.bolds === true) map = parseTag(TAG_bold, CHR_bold, rawString, map) + if(styletags.italics === true) map = parseTag(TAG_italic, CHR_italic, rawString, map) + if(styletags.superscripts === true) map = parseTag(TAG_super, CHR_super, rawString, map) + if(styletags.subscripts === true) map = parseTag(TAG_sub, CHR_sub, rawString, map) + + var allStyles = [] + var plainText = "" + for(j = 0; j < rawString.length; ++j) { + if(map[j] !== null) { + plainText += rawString[j] + allStyles.push(map[j]) + } + } + + var allTexts = plainText.split('\n') + + var numberOfLines = allTexts.length + var lineHeight = Math.round(lineSpacing * fontSize) + var offsetX = fontSize + var offsetY = fontSize * 2 + var maxWidth = 0 + var minHeight = numberOfLines * lineHeight + offsetY + + if(canvas.height < minHeight) { + canvas.height = minHeight + } + + context.fillStyle = "#000" + context.fillRect(0, 0, canvas.width, canvas.height) + + context.fillStyle = "#fff" + var i, j, xPos, yPos, zPos + var nDone = 0 + + var buffer = "" + function writeBuffer() { + if(buffer !== "") { + var delta = context.measureText(buffer).width + + context.fillText(buffer, offsetX + xPos, offsetY + yPos) + xPos += delta + } + } + + function getTextFontSize() { + return "" + Math.round(zPos) + "px "; + } + + function changeStyle(oldStyle, newStyle) { + var ctxFont = "" + context.font; + + if(styletags.subscripts === true) { + var oldIndex_Sub = oldStyle.indexOf(CHR_sub0); + var newIndex_Sub = newStyle.indexOf(CHR_sub0); + + var oldSub = (oldIndex_Sub > -1) ? parseInt(oldStyle[1 + oldIndex_Sub]) : 0; + var newSub = (newIndex_Sub > -1) ? parseInt(newStyle[1 + newIndex_Sub]) : 0; + + if(oldSub !== newSub) { + ctxFont = ctxFont.replace(getTextFontSize(), "?px ") + zPos *= Math.pow(0.75, (newSub - oldSub)) + ctxFont = ctxFont.replace("?px ", getTextFontSize()) + } + yPos += 0.25 * lineHeight * (newSub - oldSub); + } + + if(styletags.superscripts === true) { + var oldIndex_Super = oldStyle.indexOf(CHR_super0); + var newIndex_Super = newStyle.indexOf(CHR_super0); + + var oldSuper = (oldIndex_Super > -1) ? parseInt(oldStyle[1 + oldIndex_Super]) : 0; + var newSuper = (newIndex_Super > -1) ? parseInt(newStyle[1 + newIndex_Super]) : 0; + + if(oldSuper !== newSuper) { + ctxFont = ctxFont.replace(getTextFontSize(), "?px ") + zPos *= Math.pow(0.75, (newSuper - oldSuper)) + ctxFont = ctxFont.replace("?px ", getTextFontSize()) + } + yPos -= 0.25 * lineHeight * (newSuper - oldSuper); + } + + if(styletags.bolds === true) { + var wasBold = (oldStyle.indexOf(CHR_bold) > -1) + var is_Bold = (newStyle.indexOf(CHR_bold) > -1) + + if(!wasBold && is_Bold) { + if(wasItalic) { + ctxFont = ctxFont.replace("italic ", "italic bold ") + } else { + ctxFont = "bold " + ctxFont + } + } + if(wasBold && !is_Bold) { + ctxFont = ctxFont.replace("bold ", '') + } + } + + if(styletags.italics === true) { + var wasItalic = (oldStyle.indexOf(CHR_italic) > -1) + var is_Italic = (newStyle.indexOf(CHR_italic) > -1) + + if(!wasItalic && is_Italic) { + ctxFont = "italic " + ctxFont + } + if(wasItalic && !is_Italic) { + ctxFont = ctxFont.replace("italic ", '') + } + } + context.font = ctxFont + } + + for(i = 0; i < numberOfLines; ++i) { + var txt = allTexts[i] + '\n' + xPos = 0 + yPos = i * lineHeight + zPos = fontSize + + buffer = "" + + for(j = 0; j < txt.length; ++j) { + var style = (j + nDone < allStyles.length) ? allStyles[j + nDone] : allStyles[allStyles.length - 1] + if(activeStyle === style) { + buffer += txt[j] + } else { + writeBuffer() + buffer = txt[j] + + if(style !== undefined) { + changeStyle(activeStyle, style) + activeStyle = style + } + } + } + writeBuffer() + + nDone += txt.length + + var width = Math.round(xPos + 2 * offsetX) | 0 + if(maxWidth < width) maxWidth = width + } + + //Cut pixels from image + var xCut = maxWidth + var yCut = offsetY + lineHeight * numberOfLines + var pixels = ndarray(context.getImageData(0, 0, xCut, yCut).data, [yCut, xCut, 4]) + return pixels.pick(-1, -1, 0).transpose(1, 0) +} + +function getContour(pixels, doSimplify) { + var contour = surfaceNets(pixels, 128) + if(doSimplify) { + return simplify(contour.cells, contour.positions, 0.25) + } + return { + edges: contour.cells, + positions: contour.positions + } +} + +function processPixelsImpl(pixels, options, size, simplify) { + //Extract contour + var contour = getContour(pixels, simplify) + + //Apply warp to positions + var positions = transformPositions(contour.positions, options, size) + var edges = contour.edges + var flip = "ccw" === options.orientation + + //Clean up the PSLG, resolve self intersections, etc. + cleanPSLG(positions, edges) + + //If triangulate flag passed, triangulate the result + if(options.polygons || options.polygon || options.polyline) { + var result = toPolygonCrappy(edges, positions) + var nresult = new Array(result.length) + for(var i=0; i 0) size = + options.size + + if(options.lineSpacing && + options.lineSpacing > 0) lineSpacing = + options.lineSpacing + + if(options.styletags && + options.styletags.breaklines) styletags.breaklines = + options.styletags.breaklines ? true : false + + if(options.styletags && + options.styletags.bolds) styletags.bolds = + options.styletags.bolds ? true : false + + if(options.styletags && + options.styletags.italics) styletags.italics = + options.styletags.italics ? true : false + + if(options.styletags && + options.styletags.subscripts) styletags.subscripts = + options.styletags.subscripts ? true : false + + if(options.styletags && + options.styletags.superscripts) styletags.superscripts = + options.styletags.superscripts ? true : false + } + + context.font = [ + options.fontStyle, + options.fontVariant, + options.fontWeight, + size + "px", + options.font + ].filter(function(d) {return d}).join(" ") + context.textAlign = "start" + context.textBaseline = "alphabetic" + context.direction = "ltr" + + var pixels = getPixels(canvas, context, str, size, lineSpacing, styletags) + + return processPixels(pixels, options, size) +} + +},{"cdt2d":42,"clean-pslg":50,"ndarray":259,"planar-graph-to-polyline":268,"simplify-planar-graph":297,"surface-nets":302}],313:[function(_glvis_,module,exports){ +// Copyright (C) 2011 Google Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +/** + * @fileoverview Install a leaky WeakMap emulation on platforms that + * don't provide a built-in one. + * + *

Assumes that an ES5 platform where, if {@code WeakMap} is + * already present, then it conforms to the anticipated ES6 + * specification. To run this file on an ES5 or almost ES5 + * implementation where the {@code WeakMap} specification does not + * quite conform, run repairES5.js first. + * + *

Even though WeakMapModule is not global, the linter thinks it + * is, which is why it is in the overrides list below. + * + *

NOTE: Before using this WeakMap emulation in a non-SES + * environment, see the note below about hiddenRecord. + * + * @author Mark S. Miller + * @requires crypto, ArrayBuffer, Uint8Array, navigator, console + * @overrides WeakMap, ses, Proxy + * @overrides WeakMapModule + */ + +/** + * This {@code WeakMap} emulation is observably equivalent to the + * ES-Harmony WeakMap, but with leakier garbage collection properties. + * + *

As with true WeakMaps, in this emulation, a key does not + * retain maps indexed by that key and (crucially) a map does not + * retain the keys it indexes. A map by itself also does not retain + * the values associated with that map. + * + *

However, the values associated with a key in some map are + * retained so long as that key is retained and those associations are + * not overridden. For example, when used to support membranes, all + * values exported from a given membrane will live for the lifetime + * they would have had in the absence of an interposed membrane. Even + * when the membrane is revoked, all objects that would have been + * reachable in the absence of revocation will still be reachable, as + * far as the GC can tell, even though they will no longer be relevant + * to ongoing computation. + * + *

The API implemented here is approximately the API as implemented + * in FF6.0a1 and agreed to by MarkM, Andreas Gal, and Dave Herman, + * rather than the offially approved proposal page. TODO(erights): + * upgrade the ecmascript WeakMap proposal page to explain this API + * change and present to EcmaScript committee for their approval. + * + *

The first difference between the emulation here and that in + * FF6.0a1 is the presence of non enumerable {@code get___, has___, + * set___, and delete___} methods on WeakMap instances to represent + * what would be the hidden internal properties of a primitive + * implementation. Whereas the FF6.0a1 WeakMap.prototype methods + * require their {@code this} to be a genuine WeakMap instance (i.e., + * an object of {@code [[Class]]} "WeakMap}), since there is nothing + * unforgeable about the pseudo-internal method names used here, + * nothing prevents these emulated prototype methods from being + * applied to non-WeakMaps with pseudo-internal methods of the same + * names. + * + *

Another difference is that our emulated {@code + * WeakMap.prototype} is not itself a WeakMap. A problem with the + * current FF6.0a1 API is that WeakMap.prototype is itself a WeakMap + * providing ambient mutability and an ambient communications + * channel. Thus, if a WeakMap is already present and has this + * problem, repairES5.js wraps it in a safe wrappper in order to + * prevent access to this channel. (See + * PATCH_MUTABLE_FROZEN_WEAKMAP_PROTO in repairES5.js). + */ + +/** + * If this is a full secureable ES5 platform and the ES-Harmony {@code WeakMap} is + * absent, install an approximate emulation. + * + *

If WeakMap is present but cannot store some objects, use our approximate + * emulation as a wrapper. + * + *

If this is almost a secureable ES5 platform, then WeakMap.js + * should be run after repairES5.js. + * + *

See {@code WeakMap} for documentation of the garbage collection + * properties of this WeakMap emulation. + */ +(function WeakMapModule() { + "use strict"; + + if (typeof ses !== 'undefined' && ses.ok && !ses.ok()) { + // already too broken, so give up + return; + } + + /** + * In some cases (current Firefox), we must make a choice betweeen a + * WeakMap which is capable of using all varieties of host objects as + * keys and one which is capable of safely using proxies as keys. See + * comments below about HostWeakMap and DoubleWeakMap for details. + * + * This function (which is a global, not exposed to guests) marks a + * WeakMap as permitted to do what is necessary to index all host + * objects, at the cost of making it unsafe for proxies. + * + * Do not apply this function to anything which is not a genuine + * fresh WeakMap. + */ + function weakMapPermitHostObjects(map) { + // identity of function used as a secret -- good enough and cheap + if (map.permitHostObjects___) { + map.permitHostObjects___(weakMapPermitHostObjects); + } + } + if (typeof ses !== 'undefined') { + ses.weakMapPermitHostObjects = weakMapPermitHostObjects; + } + + // IE 11 has no Proxy but has a broken WeakMap such that we need to patch + // it using DoubleWeakMap; this flag tells DoubleWeakMap so. + var doubleWeakMapCheckSilentFailure = false; + + // Check if there is already a good-enough WeakMap implementation, and if so + // exit without replacing it. + if (typeof WeakMap === 'function') { + var HostWeakMap = WeakMap; + // There is a WeakMap -- is it good enough? + if (typeof navigator !== 'undefined' && + /Firefox/.test(navigator.userAgent)) { + // We're now *assuming not*, because as of this writing (2013-05-06) + // Firefox's WeakMaps have a miscellany of objects they won't accept, and + // we don't want to make an exhaustive list, and testing for just one + // will be a problem if that one is fixed alone (as they did for Event). + + // If there is a platform that we *can* reliably test on, here's how to + // do it: + // var problematic = ... ; + // var testHostMap = new HostWeakMap(); + // try { + // testHostMap.set(problematic, 1); // Firefox 20 will throw here + // if (testHostMap.get(problematic) === 1) { + // return; + // } + // } catch (e) {} + + } else { + // IE 11 bug: WeakMaps silently fail to store frozen objects. + var testMap = new HostWeakMap(); + var testObject = Object.freeze({}); + testMap.set(testObject, 1); + if (testMap.get(testObject) !== 1) { + doubleWeakMapCheckSilentFailure = true; + // Fall through to installing our WeakMap. + } else { + module.exports = WeakMap; + return; + } + } + } + + var hop = Object.prototype.hasOwnProperty; + var gopn = Object.getOwnPropertyNames; + var defProp = Object.defineProperty; + var isExtensible = Object.isExtensible; + + /** + * Security depends on HIDDEN_NAME being both unguessable and + * undiscoverable by untrusted code. + * + *

Given the known weaknesses of Math.random() on existing + * browsers, it does not generate unguessability we can be confident + * of. + * + *

It is the monkey patching logic in this file that is intended + * to ensure undiscoverability. The basic idea is that there are + * three fundamental means of discovering properties of an object: + * The for/in loop, Object.keys(), and Object.getOwnPropertyNames(), + * as well as some proposed ES6 extensions that appear on our + * whitelist. The first two only discover enumerable properties, and + * we only use HIDDEN_NAME to name a non-enumerable property, so the + * only remaining threat should be getOwnPropertyNames and some + * proposed ES6 extensions that appear on our whitelist. We monkey + * patch them to remove HIDDEN_NAME from the list of properties they + * returns. + * + *

TODO(erights): On a platform with built-in Proxies, proxies + * could be used to trap and thereby discover the HIDDEN_NAME, so we + * need to monkey patch Proxy.create, Proxy.createFunction, etc, in + * order to wrap the provided handler with the real handler which + * filters out all traps using HIDDEN_NAME. + * + *

TODO(erights): Revisit Mike Stay's suggestion that we use an + * encapsulated function at a not-necessarily-secret name, which + * uses the Stiegler shared-state rights amplification pattern to + * reveal the associated value only to the WeakMap in which this key + * is associated with that value. Since only the key retains the + * function, the function can also remember the key without causing + * leakage of the key, so this doesn't violate our general gc + * goals. In addition, because the name need not be a guarded + * secret, we could efficiently handle cross-frame frozen keys. + */ + var HIDDEN_NAME_PREFIX = 'weakmap:'; + var HIDDEN_NAME = HIDDEN_NAME_PREFIX + 'ident:' + Math.random() + '___'; + + if (typeof crypto !== 'undefined' && + typeof crypto.getRandomValues === 'function' && + typeof ArrayBuffer === 'function' && + typeof Uint8Array === 'function') { + var ab = new ArrayBuffer(25); + var u8s = new Uint8Array(ab); + crypto.getRandomValues(u8s); + HIDDEN_NAME = HIDDEN_NAME_PREFIX + 'rand:' + + Array.prototype.map.call(u8s, function(u8) { + return (u8 % 36).toString(36); + }).join('') + '___'; + } + + function isNotHiddenName(name) { + return !( + name.substr(0, HIDDEN_NAME_PREFIX.length) == HIDDEN_NAME_PREFIX && + name.substr(name.length - 3) === '___'); + } + + /** + * Monkey patch getOwnPropertyNames to avoid revealing the + * HIDDEN_NAME. + * + *

The ES5.1 spec requires each name to appear only once, but as + * of this writing, this requirement is controversial for ES6, so we + * made this code robust against this case. If the resulting extra + * search turns out to be expensive, we can probably relax this once + * ES6 is adequately supported on all major browsers, iff no browser + * versions we support at that time have relaxed this constraint + * without providing built-in ES6 WeakMaps. + */ + defProp(Object, 'getOwnPropertyNames', { + value: function fakeGetOwnPropertyNames(obj) { + return gopn(obj).filter(isNotHiddenName); + } + }); + + /** + * getPropertyNames is not in ES5 but it is proposed for ES6 and + * does appear in our whitelist, so we need to clean it too. + */ + if ('getPropertyNames' in Object) { + var originalGetPropertyNames = Object.getPropertyNames; + defProp(Object, 'getPropertyNames', { + value: function fakeGetPropertyNames(obj) { + return originalGetPropertyNames(obj).filter(isNotHiddenName); + } + }); + } + + /** + *

To treat objects as identity-keys with reasonable efficiency + * on ES5 by itself (i.e., without any object-keyed collections), we + * need to add a hidden property to such key objects when we + * can. This raises several issues: + *

    + *
  • Arranging to add this property to objects before we lose the + * chance, and + *
  • Hiding the existence of this new property from most + * JavaScript code. + *
  • Preventing certification theft, where one object is + * created falsely claiming to be the key of an association + * actually keyed by another object. + *
  • Preventing value theft, where untrusted code with + * access to a key object but not a weak map nevertheless + * obtains access to the value associated with that key in that + * weak map. + *
+ * We do so by + *
    + *
  • Making the name of the hidden property unguessable, so "[]" + * indexing, which we cannot intercept, cannot be used to access + * a property without knowing the name. + *
  • Making the hidden property non-enumerable, so we need not + * worry about for-in loops or {@code Object.keys}, + *
  • monkey patching those reflective methods that would + * prevent extensions, to add this hidden property first, + *
  • monkey patching those methods that would reveal this + * hidden property. + *
+ * Unfortunately, because of same-origin iframes, we cannot reliably + * add this hidden property before an object becomes + * non-extensible. Instead, if we encounter a non-extensible object + * without a hidden record that we can detect (whether or not it has + * a hidden record stored under a name secret to us), then we just + * use the key object itself to represent its identity in a brute + * force leaky map stored in the weak map, losing all the advantages + * of weakness for these. + */ + function getHiddenRecord(key) { + if (key !== Object(key)) { + throw new TypeError('Not an object: ' + key); + } + var hiddenRecord = key[HIDDEN_NAME]; + if (hiddenRecord && hiddenRecord.key === key) { return hiddenRecord; } + if (!isExtensible(key)) { + // Weak map must brute force, as explained in doc-comment above. + return void 0; + } + + // The hiddenRecord and the key point directly at each other, via + // the "key" and HIDDEN_NAME properties respectively. The key + // field is for quickly verifying that this hidden record is an + // own property, not a hidden record from up the prototype chain. + // + // NOTE: Because this WeakMap emulation is meant only for systems like + // SES where Object.prototype is frozen without any numeric + // properties, it is ok to use an object literal for the hiddenRecord. + // This has two advantages: + // * It is much faster in a performance critical place + // * It avoids relying on Object.create(null), which had been + // problematic on Chrome 28.0.1480.0. See + // https://code.google.com/p/google-caja/issues/detail?id=1687 + hiddenRecord = { key: key }; + + // When using this WeakMap emulation on platforms where + // Object.prototype might not be frozen and Object.create(null) is + // reliable, use the following two commented out lines instead. + // hiddenRecord = Object.create(null); + // hiddenRecord.key = key; + + // Please contact us if you need this to work on platforms where + // Object.prototype might not be frozen and + // Object.create(null) might not be reliable. + + try { + defProp(key, HIDDEN_NAME, { + value: hiddenRecord, + writable: false, + enumerable: false, + configurable: false + }); + return hiddenRecord; + } catch (error) { + // Under some circumstances, isExtensible seems to misreport whether + // the HIDDEN_NAME can be defined. + // The circumstances have not been isolated, but at least affect + // Node.js v0.10.26 on TravisCI / Linux, but not the same version of + // Node.js on OS X. + return void 0; + } + } + + /** + * Monkey patch operations that would make their argument + * non-extensible. + * + *

The monkey patched versions throw a TypeError if their + * argument is not an object, so it should only be done to functions + * that should throw a TypeError anyway if their argument is not an + * object. + */ + (function(){ + var oldFreeze = Object.freeze; + defProp(Object, 'freeze', { + value: function identifyingFreeze(obj) { + getHiddenRecord(obj); + return oldFreeze(obj); + } + }); + var oldSeal = Object.seal; + defProp(Object, 'seal', { + value: function identifyingSeal(obj) { + getHiddenRecord(obj); + return oldSeal(obj); + } + }); + var oldPreventExtensions = Object.preventExtensions; + defProp(Object, 'preventExtensions', { + value: function identifyingPreventExtensions(obj) { + getHiddenRecord(obj); + return oldPreventExtensions(obj); + } + }); + })(); + + function constFunc(func) { + func.prototype = null; + return Object.freeze(func); + } + + var calledAsFunctionWarningDone = false; + function calledAsFunctionWarning() { + // Future ES6 WeakMap is currently (2013-09-10) expected to reject WeakMap() + // but we used to permit it and do it ourselves, so warn only. + if (!calledAsFunctionWarningDone && typeof console !== 'undefined') { + calledAsFunctionWarningDone = true; + console.warn('WeakMap should be invoked as new WeakMap(), not ' + + 'WeakMap(). This will be an error in the future.'); + } + } + + var nextId = 0; + + var OurWeakMap = function() { + if (!(this instanceof OurWeakMap)) { // approximate test for new ...() + calledAsFunctionWarning(); + } + + // We are currently (12/25/2012) never encountering any prematurely + // non-extensible keys. + var keys = []; // brute force for prematurely non-extensible keys. + var values = []; // brute force for corresponding values. + var id = nextId++; + + function get___(key, opt_default) { + var index; + var hiddenRecord = getHiddenRecord(key); + if (hiddenRecord) { + return id in hiddenRecord ? hiddenRecord[id] : opt_default; + } else { + index = keys.indexOf(key); + return index >= 0 ? values[index] : opt_default; + } + } + + function has___(key) { + var hiddenRecord = getHiddenRecord(key); + if (hiddenRecord) { + return id in hiddenRecord; + } else { + return keys.indexOf(key) >= 0; + } + } + + function set___(key, value) { + var index; + var hiddenRecord = getHiddenRecord(key); + if (hiddenRecord) { + hiddenRecord[id] = value; + } else { + index = keys.indexOf(key); + if (index >= 0) { + values[index] = value; + } else { + // Since some browsers preemptively terminate slow turns but + // then continue computing with presumably corrupted heap + // state, we here defensively get keys.length first and then + // use it to update both the values and keys arrays, keeping + // them in sync. + index = keys.length; + values[index] = value; + // If we crash here, values will be one longer than keys. + keys[index] = key; + } + } + return this; + } + + function delete___(key) { + var hiddenRecord = getHiddenRecord(key); + var index, lastIndex; + if (hiddenRecord) { + return id in hiddenRecord && delete hiddenRecord[id]; + } else { + index = keys.indexOf(key); + if (index < 0) { + return false; + } + // Since some browsers preemptively terminate slow turns but + // then continue computing with potentially corrupted heap + // state, we here defensively get keys.length first and then use + // it to update both the keys and the values array, keeping + // them in sync. We update the two with an order of assignments, + // such that any prefix of these assignments will preserve the + // key/value correspondence, either before or after the delete. + // Note that this needs to work correctly when index === lastIndex. + lastIndex = keys.length - 1; + keys[index] = void 0; + // If we crash here, there's a void 0 in the keys array, but + // no operation will cause a "keys.indexOf(void 0)", since + // getHiddenRecord(void 0) will always throw an error first. + values[index] = values[lastIndex]; + // If we crash here, values[index] cannot be found here, + // because keys[index] is void 0. + keys[index] = keys[lastIndex]; + // If index === lastIndex and we crash here, then keys[index] + // is still void 0, since the aliasing killed the previous key. + keys.length = lastIndex; + // If we crash here, keys will be one shorter than values. + values.length = lastIndex; + return true; + } + } + + return Object.create(OurWeakMap.prototype, { + get___: { value: constFunc(get___) }, + has___: { value: constFunc(has___) }, + set___: { value: constFunc(set___) }, + delete___: { value: constFunc(delete___) } + }); + }; + + OurWeakMap.prototype = Object.create(Object.prototype, { + get: { + /** + * Return the value most recently associated with key, or + * opt_default if none. + */ + value: function get(key, opt_default) { + return this.get___(key, opt_default); + }, + writable: true, + configurable: true + }, + + has: { + /** + * Is there a value associated with key in this WeakMap? + */ + value: function has(key) { + return this.has___(key); + }, + writable: true, + configurable: true + }, + + set: { + /** + * Associate value with key in this WeakMap, overwriting any + * previous association if present. + */ + value: function set(key, value) { + return this.set___(key, value); + }, + writable: true, + configurable: true + }, + + 'delete': { + /** + * Remove any association for key in this WeakMap, returning + * whether there was one. + * + *

Note that the boolean return here does not work like the + * {@code delete} operator. The {@code delete} operator returns + * whether the deletion succeeds at bringing about a state in + * which the deleted property is absent. The {@code delete} + * operator therefore returns true if the property was already + * absent, whereas this {@code delete} method returns false if + * the association was already absent. + */ + value: function remove(key) { + return this.delete___(key); + }, + writable: true, + configurable: true + } + }); + + if (typeof HostWeakMap === 'function') { + (function() { + // If we got here, then the platform has a WeakMap but we are concerned + // that it may refuse to store some key types. Therefore, make a map + // implementation which makes use of both as possible. + + // In this mode we are always using double maps, so we are not proxy-safe. + // This combination does not occur in any known browser, but we had best + // be safe. + if (doubleWeakMapCheckSilentFailure && typeof Proxy !== 'undefined') { + Proxy = undefined; + } + + function DoubleWeakMap() { + if (!(this instanceof OurWeakMap)) { // approximate test for new ...() + calledAsFunctionWarning(); + } + + // Preferable, truly weak map. + var hmap = new HostWeakMap(); + + // Our hidden-property-based pseudo-weak-map. Lazily initialized in the + // 'set' implementation; thus we can avoid performing extra lookups if + // we know all entries actually stored are entered in 'hmap'. + var omap = undefined; + + // Hidden-property maps are not compatible with proxies because proxies + // can observe the hidden name and either accidentally expose it or fail + // to allow the hidden property to be set. Therefore, we do not allow + // arbitrary WeakMaps to switch to using hidden properties, but only + // those which need the ability, and unprivileged code is not allowed + // to set the flag. + // + // (Except in doubleWeakMapCheckSilentFailure mode in which case we + // disable proxies.) + var enableSwitching = false; + + function dget(key, opt_default) { + if (omap) { + return hmap.has(key) ? hmap.get(key) + : omap.get___(key, opt_default); + } else { + return hmap.get(key, opt_default); + } + } + + function dhas(key) { + return hmap.has(key) || (omap ? omap.has___(key) : false); + } + + var dset; + if (doubleWeakMapCheckSilentFailure) { + dset = function(key, value) { + hmap.set(key, value); + if (!hmap.has(key)) { + if (!omap) { omap = new OurWeakMap(); } + omap.set(key, value); + } + return this; + }; + } else { + dset = function(key, value) { + if (enableSwitching) { + try { + hmap.set(key, value); + } catch (e) { + if (!omap) { omap = new OurWeakMap(); } + omap.set___(key, value); + } + } else { + hmap.set(key, value); + } + return this; + }; + } + + function ddelete(key) { + var result = !!hmap['delete'](key); + if (omap) { return omap.delete___(key) || result; } + return result; + } + + return Object.create(OurWeakMap.prototype, { + get___: { value: constFunc(dget) }, + has___: { value: constFunc(dhas) }, + set___: { value: constFunc(dset) }, + delete___: { value: constFunc(ddelete) }, + permitHostObjects___: { value: constFunc(function(token) { + if (token === weakMapPermitHostObjects) { + enableSwitching = true; + } else { + throw new Error('bogus call to permitHostObjects___'); + } + })} + }); + } + DoubleWeakMap.prototype = OurWeakMap.prototype; + module.exports = DoubleWeakMap; + + // define .constructor to hide OurWeakMap ctor + Object.defineProperty(WeakMap.prototype, 'constructor', { + value: WeakMap, + enumerable: false, // as default .constructor is + configurable: true, + writable: true + }); + })(); + } else { + // There is no host WeakMap, so we must use the emulation. + + // Emulated WeakMaps are incompatible with native proxies (because proxies + // can observe the hidden name), so we must disable Proxy usage (in + // ArrayLike and Domado, currently). + if (typeof Proxy !== 'undefined') { + Proxy = undefined; + } + + module.exports = OurWeakMap; + } +})(); + +},{}],314:[function(_glvis_,module,exports){ +var hiddenStore = _glvis_('./hidden-store.js'); + +module.exports = createStore; + +function createStore() { + var key = {}; + + return function (obj) { + if ((typeof obj !== 'object' || obj === null) && + typeof obj !== 'function' + ) { + throw new Error('Weakmap-shim: Key must be object') + } + + var store = obj.valueOf(key); + return store && store.identity === key ? + store : hiddenStore(obj, key); + }; +} + +},{"./hidden-store.js":315}],315:[function(_glvis_,module,exports){ +module.exports = hiddenStore; + +function hiddenStore(obj, key) { + var store = { identity: key }; + var valueOf = obj.valueOf; + + Object.defineProperty(obj, "valueOf", { + value: function (value) { + return value !== key ? + valueOf.apply(this, arguments) : store; + }, + writable: true + }); + + return store; +} + +},{}],316:[function(_glvis_,module,exports){ +// Original - @Gozola. +// https://gist.github.com/Gozala/1269991 +// This is a reimplemented version (with a few bug fixes). + +var createStore = _glvis_('./create-store.js'); + +module.exports = weakMap; + +function weakMap() { + var privates = createStore(); + + return { + 'get': function (key, fallback) { + var store = privates(key) + return store.hasOwnProperty('value') ? + store.value : fallback + }, + 'set': function (key, value) { + privates(key).value = value; + return this; + }, + 'has': function(key) { + return 'value' in privates(key); + }, + 'delete': function (key) { + return delete privates(key).value; + } + } +} + +},{"./create-store.js":314}],317:[function(_glvis_,module,exports){ +"use strict" + +function CWiseOp() { + return function(SS, a0, t0, p0, Y0, Y1) { + var s0 = SS[0], + t0p0 = t0[0], + index = [0], + q0 = t0p0 + p0 |= 0 + var i0 = 0, + d0s0 = t0p0 + for (i0 = 0; i0 < s0; ++i0) { + { + var da = a0[p0] - Y1 + var db = a0[p0 + q0] - Y1 + if (da >= 0 !== db >= 0) { + Y0.push(index[0] + 0.5 + (0.5 * (da + db)) / (da - db)) + } + } + p0 += d0s0 + ++index[0] + } + } +} + +//Generates a cwise operator +function generateCWiseOp() { + return CWiseOp() +} + +var compile = generateCWiseOp + +function thunk(compile) { + var CACHED = {} + return function zeroCrossings_cwise_thunk(array0, scalar2, scalar3) { + var t0 = array0.dtype, + r0 = array0.order, + type = [t0, r0.join()].join(), + proc = CACHED[type] + + if (!proc) { + CACHED[type] = proc = compile([t0, r0]) + } + + return proc(array0.shape.slice(0), array0.data, array0.stride, array0.offset | 0, scalar2, scalar3) + } +} + +function createThunk(proc) { + return thunk(compile.bind(undefined, proc)) +} + +function compileCwise(user_args) { + return createThunk({ + funcName: user_args.funcName + }) +} + +module.exports = compileCwise({ + funcName: 'zeroCrossings' +}) + +},{}],318:[function(_glvis_,module,exports){ +"use strict" + +module.exports = findZeroCrossings + +var core = _glvis_("./lib/zc-core") + +function findZeroCrossings(array, level) { + var cross = [] + level = +level || 0.0 + core(array.hi(array.shape[0]-1), cross, level) + return cross +} +},{"./lib/zc-core":317}]},{},[6])(6) +}); diff --git a/stackgl_modules/main.js b/stackgl_modules/main.js new file mode 100644 index 00000000000..35eb932315d --- /dev/null +++ b/stackgl_modules/main.js @@ -0,0 +1,20 @@ +module.exports = { + alpha_shape: require('alpha-shape'), + convex_hull: require('convex-hull'), + delaunay_triangulate: require('delaunay-triangulate'), + gl_cone3d: require('gl-cone3d'), + gl_error3d: require('gl-error3d'), + gl_heatmap2d: require('gl-heatmap2d'), + gl_line3d: require('gl-line3d'), + gl_mesh3d: require('gl-mesh3d'), + gl_plot2d: require('gl-plot2d'), + gl_plot3d: require('gl-plot3d'), + gl_pointcloud2d: require('gl-pointcloud2d'), + gl_scatter3d: require('gl-scatter3d'), + gl_select_box: require('gl-select-box'), + gl_spikes2d: require('gl-spikes2d'), + gl_streamtube3d: require('gl-streamtube3d'), + gl_surface3d: require('gl-surface3d'), + ndarray: require('ndarray'), + ndarray_linear_interpolate: require('ndarray-linear-interpolate'), +}; diff --git a/stackgl_modules/package-lock.json b/stackgl_modules/package-lock.json new file mode 100644 index 00000000000..eb2b05f73e6 --- /dev/null +++ b/stackgl_modules/package-lock.json @@ -0,0 +1,3819 @@ +{ + "name": "stackgl_modules", + "lockfileVersion": 2, + "requires": true, + "packages": { + "": { + "dependencies": { + "@plotly/point-cluster": "^3.1.9", + "alpha-shape": "^1.0.0", + "box-intersect": "plotly/box-intersect#v1.1.0", + "convex-hull": "^1.0.3", + "delaunay-triangulate": "^1.1.6", + "gl-cone3d": "^1.5.2", + "gl-error3d": "^1.0.16", + "gl-heatmap2d": "^1.1.1", + "gl-line3d": 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