gmap-test.js

var gm = require('googlemaps'),
	esri2geo = require('esri2geo'),
	util = require('util'),
	http = require('http'),
	phantom = require('phantom'),
	fs = require('fs'),
	request = require('request'),
	simplify = require('simplify-geojson'),
	gju = require('geojson-utils');

gm.config({'encode-polylines': true});

function getLayer(url, next){
	// console.log(arguments);
	// console.log('getting', url);
	http.get(url, function(res) {
	    var body = '';
	    res.on('data', function(chunk) {
	        body += chunk;
	    });
	    res.on('end', function() {
	        var json = JSON.parse(body)
	        if(next)
	        	next(json)
	    });
	}).on('error', function(e) {
	      console.log("Got error: ", e);
	});
}

// function handleEsriJSON(next, esrijson){
// 	// console.log(json, arguments)
// 	var geoJSON,
// 		cb = next;
// 	esri2geo(esrijson,cb);
// }

function handleTerminals(next, layers, err, json){
	// console.log(arguments, Object.keys(arguments).length);
	// 	console.log(layers);
		var createImages = [];
		if(json.features)
			var simplified = simplify(json, 0.0001);
			simplified.features.forEach(function(feature){
				var terminal = feature.properties.TermnialName,
					Terminal_ID = feature.properties.Terminal_ID,
					geom = feature.geometry;
					// console.log(terminal)
				// if(terminal==='TraPac Terminal'){
					var center = gju.centroid(geom).coordinates.reverse();
					// var center = gju.rectangleCentroid(geom);
					console.log(center);
					var coords = [];
					geom.coordinates.forEach(function(coord){
						coord.forEach(function(a){
						    a.reverse();
						    coords.push(a.join(','));
						})
					});
					var paths = [
					    { 
					    	'color': 'red', 
					    	// 'fillcolor': 'yellow',
					    	'weight': '4',
					    	'points':coords
					    }
					]
					for(var name in layers){
						var layer = layers[name]
						if(layer.Terminal_ID === Terminal_ID){
							// console.log(layer.name, 'matched', Object.keys(layer));
							paths.push(layer.path);
						}
					}
					// console.log(coords.length, paths.length);
					createImages.push(
						function(){
							getBuildings(
								gju.boundingBoxAroundPolyCoords(geom.coordinates).join(','),
							 	function(buildings){
							 		// console.log('buildings', buildings)
							 		layers.buildings = buildings;
							 		paths.push(buildings.paths)
							 		paths.reverse();
							 		createImage(
							 		// .bind(
								 	// 	this,
								 	// 'Oakland, CA', 15, '600x400', false, false, 'satellite'));//, markers, styles, paths 
								 		gm.staticMap( center, 16, '2400x1600', 2/*scale*/, false, false, 'satellite', false/*markers*/, false/*styles*/, paths), 
								 		'c:/temp/'+terminal.replace('/', ' - ').replace('\\', ' - ')+'.jpg',
								 		function(){
								 			if(createImages.length>0)
								 				createImages.shift()();
								 			else 
								 				console.log('done');
								 		} 
								 	)
							 	}
							 )
						}
					 );
				// }
			})
		if(next)
			next(createImages)
	}

function cyclethrough(){
	for(var arg in arguments){
		if(arguments[arg] instanceof Array)
			arguments[arg].shift()()
	}
}

function download(uri, filename, callback){
  request.head(uri, function(err, res, body){
    // console.log('content-type:', res.headers['content-type']);
    // console.log('content-length:', res.headers['content-length']);
    request(uri).pipe(fs.createWriteStream(filename)).on('close', function(){console.log(arguments, 'complete'); if(callback)callback()});
  });
};


function createImage(url, filename, next){
	console.log('image url:', url, 'output', filename);//, markers, styles, paths))
	download(url, filename, next);
	// phantom.create(function(ph){
	// 	ph.createPage(function(page) {
	// 	    page.set("paperSize", { format: "A4", orientation: 'landscape', margin: '1cm' });
	// 	    page.open(url, function(status) {
	// 	        page.render("c:/temp/dwr-lep.pdf", function(){
	// 	            console.log("page rendered");
	// 	            ph.exit();
	// 	        })
	// 	    })
	// 	})
	// })
}


function processBerths(next, err, json){
	var berths = {};
	var simplified = simplify(json, 0.0001);
	simplified.features.forEach(function(feature){
		var Terminal_ID = feature.properties.Terminal_ID,
			name = feature.properties.Berth
			geom = feature.geometry;
		// console.log(Terminal_ID, name);
		// if(terminal==='TraPac Terminal'){
		// var center = gju.rectangleCentroid(geom);
		var coords = [];
		geom.coordinates.forEach(function(coord){
			coord.forEach(function(a){
			    a.reverse();
			    coords.push(a.join(','));
			})
		});
		var path = { 
		    	'color': 'blue', 
		    	'weight': '2',
		    	'points':coords
		    };
		 // console.log(coords);
		 berths[name] = {
		 	name: name,
		 	Terminal_ID : Terminal_ID,
		 	path : path
		 }
	})
	return next(berths);
}

function processBuldingss(next, err, json){
	var buildings = {}, markers = [];
	// console.log(arguments);
	// console.log(next,layers,err, json);
	var simplified = simplify(json, 0.001);
	simplified.features.forEach(function(feature){
		var geom = feature.geometry;
		var coords = [];
		geom.coordinates.forEach(function(coord){
			coord.forEach(function(a){
			    a.reverse();
			    coords.push(a.join(','));
			})
		});
		var paths = { 
		    	'color': '0x151515ff',
		    	'weight': '1',
		    	'fillcolor' : '0x545454ff',
		    	'points':coords
		    };
		  buildings.paths = paths;
		markers.push(
		    	{ 'location': gju.centroid(geom) }
		    )
		    // { 'location': '1333 Broadway Oakland, CA',
		    //     'color': 'red',
		    //     'label': 'A',
		    //     'shadow': 'true',
		    //     'icon' : 'http://chart.apis.google.com/chart?chst=d_map_pin_icon&chld=cafe%7C996600'
		    // }
		// ]
	})
	buildings.markers = markers;
	return next(buildings);
}

function getGates(){
	'http://jls-gispweb1.portoakland.internal/arcgis/rest/services/Essentials/Base_fences/MapServer/1'
}

function getBuildings(bounds, next){
	// console.log(next, arguments);
	var url = 'http://jls-gispweb1.portoakland.internal/arcgis/rest/services/Essentials/Base_structures/MapServer/1/query?where=1%3D1&text=&objectIds=&time=&geometry='+ bounds +'&geometryType='+ 'esriGeometryEnvelope' +'&inSR='+ 4326 +'&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=4326&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&returnDistinctValues=false&f=pjson'
	getLayer(url, function process(esriJson){
		esri2geo(esriJson, processBuldingss.bind(this, next));
	} )
}

function getBerths(layers){
	var url = 'http://jls-gispweb1.portoakland.internal/arcgis/rest/services/Essentials/Base_boundaries/MapServer/3/query?where=1%3D1&text=&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=4326&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&returnDistinctValues=false&f=pjson'
	getLayer(url, function process(esriJson){
		esri2geo(esriJson, processBerths.bind(this, getTerminals));
	} )
}

function getTerminals(layers){
	var url = 'http://jls-gispweb1.portoakland.internal/arcgis/rest/services/Essentials/Base_boundaries/MapServer/1/query?where=1%3D1&text=&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=4326&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&returnDistinctValues=false&f=pjson'
	getLayer(url, function process(esriJson){
		esri2geo(esriJson, handleTerminals.bind(this, cyclethrough, layers)) 
	} )
}

getBerths();
// createImage(gm.staticMap('Oakland, CA', 15, '600x400', false, false, 'satellite'), 'c:/temp/gmap.jpg')


// gm.reverseGeocode('41.850033,-87.6500523', function(err, data){
//   util.puts(JSON.stringify(data));
// });

// gm.reverseGeocode(gm.checkAndConvertPoint([41.850033, -87.6500523]), function(err, data){
//   util.puts(JSON.stringify(data));
// });

// markers = [
//     { 'location': '246 4th St Davis, CA' },
//     { 'location': '1333 Broadway Oakland, CA',
//         'color': 'red',
//         'label': 'A',
//         'shadow': 'true',
//         'icon' : 'http://chart.apis.google.com/chart?chst=d_map_pin_icon&chld=cafe%7C996600'
//     }
// ]

// styles = [
//     { 'feature': 'road', 'element': 'all', 'rules': 
//         { 'hue': '0x00ff00' }
//     }
// ]

// paths = [
//     { 'color': '0x0000ff', 'weight': '5', 'points': 
//         [ '41.139817,-77.454439', '41.138621,-77.451596' ]
//     }
// ]

// util.puts(gm.staticMap('Oakland, CA', 15, '600x400', false, false, 'satellite'));//, markers, styles, paths));