D3.js ver.4 を使って作成したグループバーチャート
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D3 v4 - Group barChart
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| license: mit |
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| contry | 2000 | 2001 | 2002 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|---|---|---|
| 日本 | 2704659 | 4499890 | 2159981 | 3853788 | 10604510 | 8819342 | 4114496 | |
| アメリカ | 2027307 | 3277946 | 1420518 | 2454721 | 7017731 | 5656528 | 2472223 | |
| フランス | 1208495 | 2141490 | 1058031 | 1999120 | 5355235 | 5120254 | 2607672 | |
| イギリス | 1140516 | 1938695 | 925060 | 1607297 | 4782119 | 4746856 | 3187797 | |
| 中国 | 894368 | 1558919 | 725973 | 1311479 | 3596343 | 3239173 | 1575308 | |
| 韓国 | 737462 | 1345341 | 679201 | 1203944 | 3157759 | 3414001 | 1910571 |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"/> | |
| <title>D3 v4 - Group barChart</title> | |
| <style> | |
| #graph { | |
| width: 900px; | |
| height: 500px; | |
| } | |
| .tick line { | |
| stroke-dasharray: 2 2 ; | |
| stroke: #ccc; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="graph"></div> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/d3/4.1.1/d3.min.js"></script> | |
| <script> | |
| !(function(){ | |
| "use strict" | |
| var width,height | |
| var chartWidth, chartHeight | |
| var margin | |
| var svg = d3.select("#graph").append("svg") | |
| var axisLayer = svg.append("g").classed("axisLayer", true) | |
| var chartLayer = svg.append("g").classed("chartLayer", true) | |
| var xScale = d3.scaleBand() | |
| var xInScale = d3.scaleBand(); | |
| var yScale = d3.scaleLinear() | |
| var color = d3.scaleOrdinal() | |
| .range(["#5DDEC9", "#EF64AD", "#7b6888", "#BA67E5", "#E0E23B", "#d0743c", "#ff8c00"]); | |
| d3.csv("data.csv", cast, main) | |
| function cast(d) { | |
| Object.keys(d).forEach(function(key){ | |
| if (!isNaN(+d[key])) d[key] = +d[key] | |
| }) | |
| return d | |
| } | |
| function main(data) { | |
| console.log(data) | |
| var nested = d3.nest() | |
| .rollup(function(d){ delete d[0].contry; return d[0] }) | |
| .key(function(d){ return d.contry }) | |
| .entries(data) | |
| nested.forEach(function(d){ | |
| d.age = Object.keys(d.value).map(function(key){ | |
| return {key:key, value:d.value[key]} | |
| }) | |
| }) | |
| setSize(nested) | |
| drawAxis() | |
| drawChart(nested) | |
| } | |
| function setSize(nested) { | |
| width = document.querySelector("#graph").clientWidth | |
| height = document.querySelector("#graph").clientHeight | |
| margin = {top:0, left:100, bottom:40, right:0 } | |
| chartWidth = width - (margin.left+margin.right) | |
| chartHeight = height - (margin.top+margin.bottom) | |
| svg.attr("width", width).attr("height", height) | |
| axisLayer.attr("width", width).attr("height", height) | |
| chartLayer | |
| .attr("width", chartWidth) | |
| .attr("height", chartHeight) | |
| .attr("transform", "translate("+[margin.left, margin.top]+")") | |
| xScale.domain(nested.map(function(d) { return d.key })) | |
| .range([0, chartWidth]).paddingInner(0.1) | |
| var ageNames = Object.keys(nested[0].value) | |
| xInScale.domain(ageNames).range([0, xScale.bandwidth()]) | |
| var yMax = d3.max(nested.map(function(d){ | |
| var values = Object.keys(d.value).map(function(key){ | |
| return d.value[key] | |
| }) | |
| return d3.max(values) | |
| })) | |
| yScale.domain([0, yMax]).range([chartHeight, 0]) | |
| } | |
| function drawChart(nested) { | |
| var t = d3.transition() | |
| .duration(1000) | |
| .ease(d3.easeLinear) | |
| var contry = chartLayer.selectAll(".contry") | |
| .data(nested) | |
| var newCountry = contry.enter().append("g").attr("class", "contry") | |
| contry.merge(newCountry) | |
| .attr("transform", function(d) { return "translate(" + [xScale(d.key), 0] + ")"; }); | |
| var bar = newCountry.selectAll(".bar") | |
| .data(function(d){ return d.age }) | |
| var newBar = bar.enter().append("rect").attr("class", "bar") | |
| bar.merge(newBar) | |
| .attr("width", xInScale.bandwidth()) | |
| .attr("height", 0) | |
| .attr("fill", function(d) { return color(d.key); }) | |
| .attr("transform", function(d) { return "translate(" + [xInScale(d.key), chartHeight] + ")" }) | |
| //アニメーション | |
| bar.merge(newBar).transition(t) | |
| .attr("height", function(d) { return chartHeight - yScale(d.value); }) | |
| .attr("transform", function(d) { return "translate(" + [xInScale(d.key), yScale(d.value)] + ")" }) | |
| } | |
| function drawAxis(){ | |
| var yAxis = d3.axisLeft(yScale) | |
| .tickSizeInner(-chartWidth) | |
| axisLayer.append("g") | |
| .attr("transform", "translate("+[margin.left, margin.top]+")") | |
| .attr("class", "axis y") | |
| .call(yAxis); | |
| var xAxis = d3.axisBottom(xScale) | |
| axisLayer.append("g") | |
| .attr("class", "axis x") | |
| .attr("transform", "translate("+[margin.left, chartHeight]+")") | |
| .call(xAxis); | |
| } | |
| }()); | |
| </script> | |
| </body> | |
| </html> |
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