Created
June 29, 2012 12:36
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d3: radial stack with nest
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| key | axis | value | |
|---|---|---|---|
| min | 1 | 2 | |
| avg | 1 | 3.6 | |
| max | 1 | 5 | |
| min | 2 | 3 | |
| avg | 2 | 8.2 | |
| max | 2 | 10 | |
| min | 3 | 0 | |
| avg | 3 | 2.6 | |
| max | 3 | 8 | |
| min | 1 | 2 | |
| avg | 1 | 3.6 | |
| max | 1 | 5 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| background: #F2F2F2; | |
| } | |
| .layer.hover { | |
| stroke: white; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v2.min.js?2.9.5"></script> | |
| <script> | |
| var margin = {top: 10, right: 20, bottom: 20, left: 30}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var angle = d3.scale.linear() | |
| .range([0, 2 * Math.PI]); | |
| var radius = d3.scale.linear() | |
| .range([20, height / 2]); | |
| var z = d3.scale.category20c(); | |
| var stack = d3.layout.stack() | |
| .offset("zero") | |
| .values(function(d) { return d.values; }) | |
| .x(function(d) { return d.axis; }) | |
| .y(function(d) { return d.value; }); | |
| var nest = d3.nest() | |
| .key(function(d) { return d.key; }); | |
| var area = d3.svg.area.radial() | |
| .interpolate('cardinal-closed') | |
| .tension(1) | |
| .angle(function(d,i) { | |
| return angle(i); | |
| }) | |
| .innerRadius(function(d) { | |
| return radius(d.y0); | |
| }) | |
| .outerRadius(function(d) { | |
| return radius(d.y0 + d.y); | |
| }); | |
| 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(" + width / 2 + "," + height / 2 + ")"); | |
| d3.csv("data.csv", function(data) { | |
| data.forEach(function(d) { | |
| d.axis = +d.axis; | |
| d.value = +d.value; | |
| }); | |
| var layers = stack(nest.entries(data)); | |
| angle.domain([1, d3.max(data, function(d) { return d.axis }) + 1]); | |
| radius.domain([0, d3.max(data, function(d) { return d.y0 + d.y; })]); | |
| svg.selectAll(".layer") | |
| .data(layers) | |
| .enter().append("path") | |
| .attr("class", function(d) { | |
| return "layer " + d.key; | |
| }) | |
| .attr("d", function(d) { | |
| return area(d.values); | |
| }) | |
| .style("fill", function(d, i) { return z(i); }); | |
| svg.selectAll('.layer') | |
| .on('mouseover', function(d, i) { | |
| d3.select(this).classed('hover', true); | |
| }) | |
| .on('mouseout', function(d, i) { | |
| d3.select(this).classed('hover', false); | |
| }); | |
| }); | |
| </script> |
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