更新する度に表示が変わるバブルチャート
forked from hunzy's block: ランダムバブルチャート
Created
October 1, 2016 16:03
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ランダムバブルチャート
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| license: mit |
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| <!doctype html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>バブルチャート</title> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| </head> | |
| <body> | |
| <script> | |
| // バブルチャート用のデータをランダムに生成 | |
| var dataset = []; | |
| for(i=0; i<20; i++){ | |
| var _x = Math.random() * 100; | |
| var _y = Math.random() * 100; | |
| var _r = Math.random() * 100; | |
| dataset.push({x:_x, y:_y, r:_r}); | |
| } | |
| // 色の配列（20個） | |
| var color = d3.scale.category20(); | |
| // svg領域の幅と高さとパディング | |
| var w = 960; | |
| var h = 500; | |
| var p = 50; | |
| // svg領域を生成 | |
| var svg = d3.select("body").append("svg") | |
| .attr({ | |
| width: w, | |
| height: h | |
| }); | |
| // x軸のスケール設定 | |
| var xScale = d3.scale.linear() | |
| .domain([0, d3.max(dataset.map(function(d){ return d.x; }))]) | |
| .range([p, w-p]) | |
| // y軸のスケール設定 | |
| var yScale = d3.scale.linear() | |
| .domain([0, d3.max(dataset.map(function(d){ return d.y; }))]) | |
| .range([p, h-p]) | |
| // 円のスケール設定 | |
| var rScale = d3.scale.linear() | |
| .domain([0, d3.max(dataset.map(function(d){ return d.r; }))]) | |
| .range([0, 100]) // 適当に | |
| // 円の描画 | |
| svg.selectAll("circle") | |
| .data(dataset) | |
| .enter() | |
| .append("circle") | |
| .attr({ | |
| cx: function(d){ return xScale(d.x); }, | |
| cy: function(d){ return yScale(d.y); }, | |
| fill: function(d,i){return color(i);}, | |
| r: 0 | |
| }) | |
| .transition() | |
| .duration(1000) | |
| .ease("bounce") | |
| .attr({ | |
| r: function(d){ return rScale(d.r); }, | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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