D3 Examples - 美術科職員の戦力未来図

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
body {
  font: 10px sans-serif;
}
​
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
.bar {
  fill: steelblue;
}
​
.x.axis path {
  display: none;
}
​
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
​
var margin = {top: 20, right: 20, bottom: 50, left: 45},//図の位置、周縁サイズ
    width = 960 - margin.left - margin.right,
    height =　450 - margin.top - margin.bottom;
​
var x = d3.scale.ordinal()
    .rangeRoundBands([0, width], .2);//列の間隔
​
var y = d3.scale.linear()
    .rangeRound([height, 0]);
​
var shuffle = function() {return Math.random()-.5};
​
//色を27色にする
var color =d3.scale.ordinal().range(['#ee82ee','#ffc0cb','#db7093','#ff69b4','#c71585','#808000','#556b2f','#8fbc8f',
'#3cb371','#228b22','#006400','#008080','#5f9ea0','#20b2aa','#48d1cc','#00ffff','#afeeee','#add8e6',
'#87cefa','#00bfff','#6495ed','#1e90ff','#0000ff','#00008b','#4682b4','#7b68ee','#9370db','#483d8b']);
    
var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");
​
var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");
    
var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
​
d3.csv("datap.csv", function(error, data) {//データの指定、読み込み
  if (error) throw error;
​
  color.domain(d3.keys(data[0]).filter(function(key) { return key !== "YE"; }));
​
  data.forEach(function(d) {//データをそれぞれ積み上げ
    var y0 = 0;
    d.power = color.domain().map(function(name) { return {name: name, y0: y0, y1: y0 += +d[name]}; });
    d.total = d.power[d.power.length - 1].y1;
  });
​
  x.domain(data.map(function(d) { return d.YE; }));
  y.domain([0, d3.max(data, function(d) { return d.total; })]);
​
  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);
​
  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Total Power");
​
  var YE = svg.selectAll(".YE")
      .data(data)
    .enter().append("g")
      .attr("class", "g")
      .attr("transform", function(d) { return "translate(" + x(d.YE) + ",0)"; });
​
  YE.selectAll("rect")
      .data(function(d) { return d.power; })
    .enter().append("rect")
      .attr("width", x.rangeBand())
      .attr("y", function(d) { return y(d.y1); })
      .attr("height", function(d) { return y(d.y0) - y(d.y1); })
      .style("fill", function(d) { return color(d.name); });
​
  var legend = svg.selectAll(".legend")
      .data(color.domain().slice().reverse())
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(0," + i * 12 + ")"; });
​
  legend.append("rect")
      .attr("x", width - 38)
      .attr("width", 18)
      .attr("height", 8)
      .style("fill", color);
​
  legend.append("text")
      .attr("x", width - 43)
      .attr("y", 2)
      .attr("dy", ".35em")
      .attr("font-sise", 6)
      .style("text-anchor", "end")
      .text(function(d) { return d; });
​
});
</script>
    