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vizkit.js
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/*
* vizkit
* Copyright (c) 2013 Matthew Meyer <[email protected]>
* MIT License
*/
vizkit = function() {
var vizkit = {
version: "0.0.1"
}
vizkit.utils = {};
vizkit.utils.merge_objs = function(obj1,obj2){
var obj3 = {};
for (var attrname in obj1) { obj3[attrname] = obj1[attrname]; }
for (var attrname in obj2) { obj3[attrname] = obj2[attrname]; }
return obj3;
}
//---------------------
// Bar Chart
//---------------------
vizkit.barchart = function(data) {
var xAxis = {scale: 'linear', gridLine: false},
yAxis = {scale: 'linear', gridLine: false, minVal: 0},
bar = {},
legend = {},
tooltip = false;
var viz = function(vizContainer) {
var width = parseInt(vizContainer.style('width')),
height = parseInt(vizContainer.style('height')),
margin = 100,
svg = vizContainer.append('svg');
svg.attr('width', width).attr('height', height);
/* ---- Tick Formats ---- */
if (yAxis.tickFormat !== undefined && yAxis.scale !== 'time'){
var ytFormat = d3.format(yAxis.tickFormat);
}
else if (yAxis.scale === 'time'){
// time format requires default xtFormat for date parsing
var ytFormat = d3.time.format.iso;
if (yAxis.tickFormat !== undefined){
ytFormat = d3.time.format(yAxis.tickFormat);
}
}
if (xAxis.tickFormat !== undefined && xAxis.scale !== 'time'){
var xtFormat = d3.format(xAxis.tickFormat);
}
else if (xAxis.scale === 'time'){
// time format requires default xtFormat for date parsing
var xtFormat = d3.time.format.iso;
if (xAxis.tickFormat !== undefined){
xtFormat = d3.time.format(xAxis.tickFormat);
}
}
/* ---- X Scale ---- */
if (xAxis.scale == 'linear'){
var x = d3.scale.linear(),
xDataIter = function(d){return x(d.xValue);},
xExtents = d3.extent(d3.merge(data), xDataIter),
x_data_min = xExtents[0],
x_data_max = xExtents[1];
if(typeof xAxis.minVal !== 'undefined') x_data_min = xAxis.minVal;
if(typeof xAxis.maxVal !== 'undefined') x_data_max = xAxis.maxVal;
x.domain([x_data_min, x_data_max]);
x.range([margin, width - margin]);
}
else if (xAxis.scale == 'ordinal'){
var x = d3.scale.ordinal(),
xDataIter = function(d){return x(d.xValue);};
x.domain(d3.merge(data).map(function(d) { return d.xValue; }));
x.rangeRoundBands([margin, width - margin], .5);
}
else if (xAxis.scale == 'time'){
var x = d3.time.scale(),
parseDate = xtFormat.parse,
xDataIter = function(d){return x(parseDate(d.xValue));};
x.domain(d3.extent(d3.merge(data), xDataIter));
x.range([margin, width - margin]);
}
/* ---- Y Scale ---- */
if (yAxis.scale == 'linear'){
var y = d3.scale.linear(),
yDataIter = function(d){ return y(d.yValue);},
yExtents = d3.extent(d3.merge(data), yDataIter),
y_data_min = yExtents[0],
y_data_max = yExtents[1];
if(typeof yAxis.minVal !== 'undefined') y_data_min = yAxis.minVal;
if(typeof yAxis.maxVal !== 'undefined') y_data_max = yAxis.maxVal;
y.domain([y_data_min, y_data_max]);
y.range([height - margin, margin]);
}
else if (yAxis.scale == 'ordinal'){
var y = d3.scale.ordinal(),
yDataIter = function(d){return y(d.yValue);};
y.domain(d3.merge(data).map(function(d) { return d.yValue; }));
y.rangePoints([height - margin, margin], 1); // second param controls tick pos
}
else if (yAxis.scale == 'time'){
var y = d3.time.scale(),
parseDate = ytFormat.parse,
yDataIter = function(d){return y(parseDate(d.yValue));};
y.domain(d3.extent(d3.merge(data), yDataIter));
y.range([height - margin, margin]);
}
/* ---- XY Axis ---- */
var xAx = d3.svg.axis()
.scale(x)
.orient("bottom")
.tickFormat(xtFormat);
if (xAxis.gridLine) xAx.tickSize(-height + (margin * 2), 10, 0).tickPadding(5);
if (xAxis.ticks) xAx.ticks(xAxis.ticks);
var yAx = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(ytFormat);
if (yAxis.gridLine) yAx.tickSize(-width + (margin * 2), 0, 0).tickPadding(5);
if (yAxis.ticks) yAx.ticks(yAxis.ticks);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0, " + (height - margin) +")")
.call(xAx);
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate("+margin+", 0)")
.call(yAx);
/* ---- Axis Titles ---- */
if (xAxis.title){
svg.append("text")
.attr('class', 'x-title')
.attr("transform", "translate("+ (width/2) +","+(height-(margin/2))+")") // centre below axis
.attr("text-anchor", "middle")
.text(xAxis.title);
}
if (yAxis.title){
svg.append("text")
.attr('class', 'y-title')
.attr("transform", "translate("+ (margin/2) +","+(height/2)+")rotate(-90)")
.attr("text-anchor", "middle")
.text(yAxis.title);
}
/* ---- Legend ---- */
if(legend !== null){
var chartLegend = svg.append("g")
.attr("class", "legend")
.attr("height", 100)
.attr("width", 100)
.attr('transform', 'translate(' + (width - 85) + ',' + 100 + ')');
var legendSymbol = d3.svg.symbol().type('square').size(100);
if (legend.symbol && legend.symbol.type) legendSymbol.type(legend.symbol.type);
if (legend.symbol && legend.symbol.size) legendSymbol.size(legend.symbol.size);
var LegendSymbols = chartLegend.selectAll('path')
.data(data)
.enter().append('path')
.attr('d', legendSymbol)
.attr("transform", function(d, i) { return "translate(" + 0 + "," + i * 20 + ")"; })
.attr('class', function(d){ return 'key-' + (data.indexOf(d) + 1) });
if (legend.addMouseoverClasses){
LegendSymbols.on("mouseover", function(d){
var curr_hover = data.indexOf(d) + 1;
for (var i=1; i <= data.length; i++){
if (i !== curr_hover){
d3.select('.key-' + i).classed('key-nomo', true);
d3.selectAll('.bar-set-' + i + ' .bar').classed('bar-nomo', true);
}
else if (i === curr_hover){
d3.select('.key-' + i).classed('key-mo', true);
d3.selectAll('.bar-set-' + i + ' .bar').classed('bar-mo', true);
}
}
})
.on("mouseout", function(d){
var curr_hover = data.indexOf(d) + 1;
for (var i=1; i <= data.length; i++){
if (i !== curr_hover){
d3.select('.key-' + i).classed('key-nomo', false);
d3.selectAll('.bar-set-' + i + ' .bar').classed('bar-nomo', false);
}
else if (i === curr_hover){
d3.select('.key-' + i).classed('key-mo', false);
d3.selectAll('.bar-set-' + i + ' .bar').classed('bar-mo', false);
}
}
});
}
chartLegend.selectAll('text')
.data(data)
.enter()
.append("text")
.attr('x', function(d, i){
if (true) return 15;
})
.attr("y", function(d, i){
if (true) return i * 20 + 4;
})
.text(function(d){ return d[0].key; });
}
/* ---- Graph Bar/s ---- */
var barContainers = svg.selectAll('.barContainers')
.data(data)
.enter().append('g')
.attr('class', function(d){ return 'bar-set-' + (data.indexOf(d) + 1) })
.attr("transform", function(d) {
return "translate(" + ((data.indexOf(d) * (x.rangeBand() / data.length) )) + ",0)"; }
);
var bars = barContainers.selectAll(".bar")
.data(function(d){
return d; })
.enter().append("rect")
.attr("class", function(d){
return 'bar bar-' + d.xValue;
})
.attr("x", function(d) {
return x(d.xValue);
})
.attr("width", x.rangeBand() / data.length)
.attr("y", function(d) {
return y(d.yValue);
})
.attr("height", function(d) {
return height - y(d.yValue) - margin; });
/* ---- Bar Tooltip ---- */
if(tooltip){
var chartTooltip = vizContainer.append("div")
.attr('class', 'vizkit-tooltip')
.style("position", "absolute")
.style("z-index", "10")
.style("visibility", "hidden");
bars.on("mouseover", function(d){
// get the viz elements containing elements offsets
var offsetY = this.ownerSVGElement.parentNode.parentNode.offsetTop;
var offsetX = this.ownerSVGElement.parentNode.parentNode.offsetLeft;
return chartTooltip.style("visibility", "visible")
.html(tooltip.content.replace('{{key}}', d.key)
.replace('{{xValue}}', d.xValue)
.replace('{{yValue}}', d.yValue)
)
.style("top", (event.pageY - offsetY)+"px")
.style("left",(event.pageX - offsetX)+"px");
})
.on("mouseout", function(){return chartTooltip.style("visibility", "hidden");});
}
}
viz.xAxis = function(value) {
if(!arguments.length) return xAxis;
xAxis = vizkit.utils.merge_objs(xAxis, value);
return viz;
}
viz.yAxis = function(value) {
if(!arguments.length) return yAxis;
yAxis = vizkit.utils.merge_objs(yAxis, value);
return viz;
}
viz.bar = function(value) {
if(!arguments.length) return bar;
bar = vizkit.utils.merge_objs(line, value);
return viz;
}
viz.legend = function(value) {
if(!arguments.length) return legend;
legend = value;
return viz;
}
viz.tooltip = function(value) {
if(!arguments.length) return line;
tooltip = vizkit.utils.merge_objs(tooltip, value);
return viz;
}
return viz;
}
//---------------------
// Line Chart
//---------------------
vizkit.linechart = function(data) {
var xAxis = {scale: 'linear', gridLine: false},
yAxis = {scale: 'linear', gridLine: false},
area = false,
line = {interpolate: 'linear'},
legend = {},
tooltip = {content: "<h1>{{key}}:</h1><p>{{xValue}}, {{yValue}}</p>"};
var viz = function(vizContainer) {
var width = parseInt(vizContainer.style('width')),
height = parseInt(vizContainer.style('height')),
margin = 100,
svg = vizContainer.append('svg');
svg.attr('width', width).attr('height', height);
/* ---- Tick Formats ---- */
if (yAxis.tickFormat !== undefined && yAxis.scale !== 'time'){
var ytFormat = d3.format(yAxis.tickFormat);
}
else if (yAxis.scale === 'time'){
// time format requires default xtFormat for date parsing
var ytFormat = d3.time.format.iso;
if (yAxis.tickFormat !== undefined){
ytFormat = d3.time.format(yAxis.tickFormat);
}
}
if (xAxis.tickFormat !== undefined && xAxis.scale !== 'time'){
var xtFormat = d3.format(xAxis.tickFormat);
}
else if (xAxis.scale === 'time'){
// time format requires default xtFormat for date parsing
var xtFormat = d3.time.format.iso;
if (xAxis.tickFormat !== undefined){
xtFormat = d3.time.format(xAxis.tickFormat);
}
}
/* ---- X Scale ---- */
if (xAxis.scale == 'linear'){
var x = d3.scale.linear(),
xDataIter = function(d){return x(d.xValue);},
xExtents = d3.extent(d3.merge(data), xDataIter),
x_data_min = xExtents[0],
x_data_max = xExtents[1];
if(typeof xAxis.minVal !== 'undefined') x_data_min = xAxis.minVal;
if(typeof xAxis.maxVal !== 'undefined') x_data_max = xAxis.maxVal;
x.domain([x_data_min, x_data_max]);
x.range([margin, width - margin]);
}
else if (xAxis.scale == 'ordinal'){
var x = d3.scale.ordinal(),
xDataIter = function(d){return x(d.xValue);};
x.domain(d3.merge(data).map(function(d) { return d.xValue; }));
x.rangePoints([margin, width - margin], 1); // second param controls tick pos
}
else if (xAxis.scale == 'time'){
var x = d3.time.scale(),
parseDate = xtFormat.parse,
xDataIter = function(d){return x(parseDate(d.xValue));};
x.domain(d3.extent(d3.merge(data), xDataIter));
x.range([margin, width - margin]);
}
/* ---- Y Scale ---- */
if (yAxis.scale == 'linear'){
var y = d3.scale.linear(),
yDataIter = function(d){ return y(d.yValue);},
yExtents = d3.extent(d3.merge(data), yDataIter),
y_data_min = yExtents[0],
y_data_max = yExtents[1];
if(typeof yAxis.minVal !== 'undefined') y_data_min = yAxis.minVal;
if(typeof yAxis.maxVal !== 'undefined') y_data_max = yAxis.maxVal;
y.domain([y_data_min, y_data_max]);
y.range([height - margin, margin]);
}
else if (yAxis.scale == 'ordinal'){
var y = d3.scale.ordinal(),
yDataIter = function(d){return y(d.yValue);};
y.domain(d3.merge(data).map(function(d) { return d.yValue; }));
y.rangePoints([height - margin, margin], 1); // second param controls tick pos
}
else if (yAxis.scale == 'time'){
var y = d3.time.scale(),
parseDate = ytFormat.parse,
yDataIter = function(d){return y(parseDate(d.yValue));};
y.domain(d3.extent(d3.merge(data), yDataIter));
y.range([height - margin, margin]);
}
/* ---- XY Axis ---- */
var xAx = d3.svg.axis()
.scale(x)
.orient("bottom")
.tickFormat(xtFormat);
if (xAxis.gridLine) xAx.tickSize(-height + (margin * 2), 10, 0).tickPadding(5);
if (xAxis.ticks) xAx.ticks(xAxis.ticks);
var yAx = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(ytFormat);
if (yAxis.gridLine) yAx.tickSize(-width + (margin * 2), 0, 0).tickPadding(5);
if (yAxis.ticks) yAx.ticks(yAxis.ticks);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0, " + (height - margin) +")")
.call(xAx);
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate("+margin+", 0)")
.call(yAx);
/* ----Area Fill ---- */
if(area){
// https://github.com/mbostock/d3/wiki/SVG-Shapes#wiki-area
var areaGenerator = d3.svg.area()
.x(xDataIter)
.y0(height - margin)
.y1(yDataIter);
var areaSvg = svg.selectAll("g.line")
.data(data)
.enter()
.append('path')
.attr("d", areaGenerator)
.attr('class', function(d){ return 'area-' + (data.indexOf(d) + 1); });
}
/* ---- Graph Line/s ---- */
var pathContainers = svg.selectAll('g.line')
.data(data)
.enter().append('g')
.attr('class', function(d){ return 'line-' + (data.indexOf(d) + 1); });
var line_path = d3.svg.line().x(xDataIter).y(yDataIter);
if (line.interpolate) line_path.interpolate(line.interpolate);
pathContainers.selectAll('path')
.data(function (d) { return [d]; })
.enter().append('path')
.attr('d', line_path);
/* ---- Peak Symbols ---- */
var peakSymbol = d3.svg.symbol().type('circle').size(20);
if (line.symbol && line.symbol.type) peakSymbol.type(line.symbol.type);
if (line.symbol && line.symbol.size) peakSymbol.size(line.symbol.size);
var peaks = pathContainers.selectAll('path')
.data(function (d) { return d; })
.enter().append('path')
.attr("transform", function(d) { return "translate(" + x(d.xValue) + "," + y(d.yValue) + ")"; })
.attr('d', peakSymbol)
.attr('class', 'symbol');
/* ---- Peak Tooltip ---- */
if(tooltip){
var chartTooltip = vizContainer.append("div")
.attr('class', 'vizkit-tooltip')
.style("position", "absolute")
.style("z-index", "10")
.style("visibility", "hidden");
peaks.on("mouseover", function(d){
// get the viz elements containing elements offsets
var offsetY = this.ownerSVGElement.parentNode.parentNode.offsetTop;
var offsetX = this.ownerSVGElement.parentNode.parentNode.offsetLeft;
return chartTooltip.style("visibility", "visible")
.html(tooltip.content.replace('{{key}}', d.key)
.replace('{{xValue}}', d.xValue)
.replace('{{yValue}}', d.yValue)
)
.style("top", (event.pageY - offsetY)+"px")
.style("left",(event.pageX - offsetX)+"px");
})
.on("mouseout", function(){return chartTooltip.style("visibility", "hidden");});
}
/* ---- Axis Titles ---- */
if (xAxis.title){
svg.append("text")
.attr('class', 'x-title')
.attr("transform", "translate("+ (width/2) +","+(height-(margin/2))+")") // centre below axis
.attr("text-anchor", "middle")
.text(xAxis.title);
}
if (yAxis.title){
svg.append("text")
.attr('class', 'y-title')
.attr("transform", "translate("+ (margin/2) +","+(height/2)+")rotate(-90)")
.attr("text-anchor", "middle")
.text(yAxis.title);
}
/* ---- Legend ---- */
if(legend !== null){
var chartLegend = svg.append("g")
.attr("class", "legend")
.attr("height", 100)
.attr("width", 100)
.attr('transform', 'translate(' + (width - 85) + ',' + 100 + ')');
var legendSymbol = d3.svg.symbol().type('square').size(100);
if (legend.symbol && legend.symbol.type) legendSymbol.type(legend.symbol.type);
if (legend.symbol && legend.symbol.size) legendSymbol.size(legend.symbol.size);
var LegendSymbols = chartLegend.selectAll('path')
.data(data)
.enter().append('path')
.attr('d', legendSymbol)
.attr("transform", function(d, i) { return "translate(" + 0 + "," + i * 20 + ")"; })
.attr('class', function(d){ return 'key-' + (data.indexOf(d) + 1)});
if (legend.addMouseoverClasses){
LegendSymbols.on("mouseover", function(d){
var curr_hover = data.indexOf(d) + 1;
for (var i=1; i <= data.length; i++){
if (i !== curr_hover){
d3.select('.key-' + i).classed('key-nomo', true);
d3.select('.line-' + i).classed('line-nomo', true);
}
else if (i === curr_hover){
d3.select('.key-' + i).classed('key-mo', true);
d3.select('.line-' + i).classed('line-mo', true);
}
}
})
.on("mouseout", function(d){
var curr_hover = data.indexOf(d) + 1;
for (var i=1; i <= data.length; i++){
if (i !== curr_hover){
d3.select('.key-' + i).classed('key-nomo', false);
d3.select('.line-' + i).classed('line-nomo', false);
}
else if (i === curr_hover){
d3.select('.key-' + i).classed('key-mo', false);
d3.select('.line-' + i).classed('line-mo', false);
}
}
});
}
chartLegend.selectAll('text')
.data(data)
.enter()
.append("text")
.attr('x', function(d, i){
if (true) return 15;
})
.attr("y", function(d, i){
if (true) return i * 20 + 4;
})
.text(function(d){ return d[0].key; });
}
};
viz.xAxis = function(value) {
if(!arguments.length) return xAxis;
xAxis = vizkit.utils.merge_objs(xAxis, value);
return viz;
};
viz.yAxis = function(value) {
if(!arguments.length) return yAxis;
yAxis = vizkit.utils.merge_objs(yAxis, value);
return viz;
};
viz.area = function(value) {
if(!arguments.length) return area;
area = value;
return viz;
};
viz.line = function(value) {
if(!arguments.length) return line;
line = vizkit.utils.merge_objs(line, value);
return viz;
};
viz.legend = function(value) {
if(!arguments.length) return legend;
legend = value;
return viz;
};
viz.tooltip = function(value) {
if(!arguments.length) return tooltip;
if(value instanceof Object){
tooltip = vizkit.utils.merge_objs(tooltip, value);
}
else {
tooltip = false;
}
return viz;
};
return viz;
};
//---------------------
// Pie Chart
//---------------------
vizkit.piechart = function(data) {
var foo = 1;
var viz = function(vizContainer) {
var width = parseInt(vizContainer.style('width')),
height = parseInt(vizContainer.style('height')),
radius = height / 2,
color = d3.scale.category20c();
var svg = vizContainer.append("svg:svg")
.data([data])
.attr('width', width)
.attr('height', height);
var arc = d3.svg.arc()
.outerRadius(radius);
var pie = d3.layout.pie()
.value(function(d) { return d.value; });
var arcs = svg.selectAll("g.slice")
.data(pie)
.enter()
.append("svg:g")
.attr("class", "slice")
.attr("transform", "translate("+width/2+","+ height/2 +")");
arcs.append("svg:path")
.attr("fill", function(d, i) { return color(i); } )
.attr("d", arc);
arcs.append("svg:text")
.attr("transform", function(d) {
d.innerRadius = 0;
d.outerRadius = radius;
return "translate(" + arc.centroid(d) + ")";
})
.attr("text-anchor", "middle")
.text(function(d, i) { return data[i].key; });
};
viz.foo = function(value) {
if(!arguments.length) return foo;
return viz;
};
return viz;
};
//---------------------
// Gauge
//---------------------
vizkit.gauge = function(gauge_value) {
var title = '';
max = 100,
min = 0,
range = max - min;
var viz = function(vizContainer) {
var width = parseInt(vizContainer.style('width')),
height = parseInt(vizContainer.style('height')),
pi = Math.PI;
var inner, outer, limit;
width < height ? limit = width : limit = height
inner = limit / 4;
outer = limit / 2;
var svg = vizContainer.append("svg").attr('width', width).attr('height', height);
valueToDegrees = function(value){
return value / range * 180 - 90;
}
valueToRadians = function(value){
return valueToDegrees(value) * Math.PI / 180;
}
var bg = d3.svg.arc()
.innerRadius(inner)
.outerRadius(outer)
.startAngle(-90 * (pi/180)) //converting from degs to radians
.endAngle(90 * (pi/180)) //converting from degs to radians
var overlay = d3.svg.arc()
.innerRadius(inner)
.outerRadius(outer)
.startAngle(valueToRadians(0)) //converting from degs to radians
.endAngle(valueToRadians(gauge_value)) //converting from degs to radians
var gauge = svg.append('g').attr("transform", "translate("+width/2+","+ height/1.5 +")");
var bg = gauge.append("path")
.attr("d", bg)
.attr("class", "bg");
gauge.append("path")
.attr("d", overlay)
.attr("class", "overlay");
gauge.append("text")
.attr("class", "count")
.attr("dx", 0)
.attr("dy", 0)
.attr("text-anchor", "middle")
.text(gauge_value);
gauge.append("text")
.attr("class", "title")
.attr("dx", 0)
.attr("dy", - ( width / 1.75))
.attr("text-anchor", "middle")
.text(title);
gauge.append("text")
.attr("class", "bound")
.attr("dx", - (width / 2.5))
.attr("dy", width / 15)
.attr("text-anchor", "middle")
.text(min);
gauge.append("text")
.attr("class", "bound")
.attr("dx", width / 2.5)
.attr("dy", width / 15)
.attr("text-anchor", "middle")
.text(max);
}
viz.range = function(value) {
if(!arguments.length) return range;
max = value[1];
min = value[0];
range = max - min;
return viz;
}
viz.title = function(value) {
if(!arguments.length) return title;
title = value;
return viz;
}
return viz;
}
return vizkit;
}();