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<!DOCTYPE html> |
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<html> |
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<head> |
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<meta charset="utf-8"> |
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<title>D3 Example</title> |
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<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> |
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<script src="//cdnjs.cloudflare.com/ajax/libs/d3-legend/1.1.0/d3-legend.js"></script> |
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<link href='https://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'> |
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<style> |
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.axis text { |
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font-family: 'Open Sans', sans-serif; |
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font-size: 21pt; |
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} |
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.axis path, .axis line { |
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fill: none; |
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stroke: #000; |
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shape-rendering: crispEdges; |
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} |
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.color-legend text { |
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font-family: 'Open Sans', sans-serif; |
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font-size: 17pt; |
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} |
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</style> |
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</head> |
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<body> |
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<script> |
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var outerWidth = 960; |
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var outerHeight = 500; |
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var margin = { left: 95, top: 0, right: 108, bottom: 297 }; |
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var xColumn = "country"; |
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var colorColumn = "religion"; |
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var areaColumn = "population"; |
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var radiusMax = 93; |
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var innerWidth = outerWidth - margin.left - margin.right; |
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var innerHeight = outerHeight - margin.top - margin.bottom; |
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var svg = d3.select("body").append("svg") |
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.attr("width", outerWidth) |
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.attr("height", outerHeight); |
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var g = svg.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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var xAxisG = g.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + innerHeight + ")"); |
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var colorLegendG = svg.append("g") |
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.attr("class", "color-legend") |
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.attr("transform", "translate(415, 255)"); |
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var xScale = d3.scale.ordinal().rangePoints([0, innerWidth]); |
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var radiusScale = d3.scale.sqrt().range([0, radiusMax]); |
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var colorScale = d3.scale.category10(); |
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var xAxis = d3.svg.axis().scale(xScale).orient("bottom") |
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.outerTickSize(0); |
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var pie = d3.layout.pie(); |
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var arc = d3.svg.arc(); |
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arc.innerRadius(0); |
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var colorLegend = d3.legend.color() |
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.scale(colorScale) |
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.shapePadding(3) |
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.shapeWidth(25) |
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.shapeHeight(25) |
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.labelOffset(4); |
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function render(data){ |
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var nested = d3.nest() |
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.key(function (d){ return d[xColumn]; }) |
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.entries(data); |
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// Compute sums for the radius field, |
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// for setting the size of each pie. |
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nested.forEach(function (xEntry){ |
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xEntry.areaColumnSum = d3.sum(xEntry.values, function (d){ |
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return d[areaColumn]; |
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}); |
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}); |
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xScale.domain(nested.map( function (d){ return d.key; })); |
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colorScale.domain(nested[0].values.map(function (d){ return d[colorColumn]; })); |
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pie.value(function(d) { return d[areaColumn]; }); |
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radiusScale.domain([ |
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0, |
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d3.max(nested, function (xEntry){ |
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return xEntry.areaColumnSum; |
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}) |
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]); |
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var pies = g.selectAll(".pie").data(nested); |
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pies.enter().append("g").attr("class", "pie"); |
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pies.attr("transform", function (d){ |
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var x = xScale(d.key); |
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return "translate(" + x + "," + innerHeight / 2 + ")"; |
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}); |
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pies.exit().remove(); |
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var slices = pies.selectAll("path").data(function (d){ |
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return pie(d.values); |
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}); |
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slices.enter().append("path"); |
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slices |
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.attr("d", function (d, i, j){ |
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arc.outerRadius(radiusScale(nested[j].areaColumnSum)); |
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return arc(d); |
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}) |
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.attr("fill", function (d){ return colorScale(d.data[colorColumn]); }); |
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slices.exit().remove(); |
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xAxisG.call(xAxis); |
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colorLegendG.call(colorLegend); |
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} |
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function type(d){ |
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d.name = "World"; |
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d.population = +d.population; |
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return d; |
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} |
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d3.csv("religionByCountryTop5.csv", type, render); |
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</script> |
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</body> |
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</html> |
