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D3byEX 10.7: Chord Diagram
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta name="description" content="D3byEX 10.7" /> | |
| <meta charset="utf-8"> | |
| </head> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var width = 960, height = 500; | |
| var svg = d3.select('body') | |
| .append('svg') | |
| .attr({ | |
| width: width, | |
| height: height | |
| }); | |
| var mainGroup = svg.append('g') | |
| .attr('transform', 'translate(' + width / 2 + ',' + height / 2 + ')'); | |
| var matrix = [ | |
| [11975, 5871, 8916, 2868], | |
| [1951, 10048, 2060, 6171], | |
| [8010, 16145, 8090, 8045], | |
| [1013, 990, 940, 6907] | |
| ]; | |
| var layout = d3.layout.chord() | |
| .padding(.05) | |
| .matrix(matrix); | |
| var fill = d3.scale.ordinal() | |
| .domain(d3.range(4)) | |
| .range(['#000000', '#FFEE89', '#957244', '#FF0023']); | |
| var innerRadius = Math.min(width, height) * .41, | |
| outerRadius = innerRadius * 1.1; | |
| mainGroup.append('g') | |
| .selectAll('path') | |
| .data(layout.groups) | |
| .enter().append('path') | |
| .style('fill', function(d) { return fill(d.index); }) | |
| .style('stroke', function(d) { return fill(d.index); }) | |
| .attr('d', d3.svg.arc() | |
| .innerRadius(innerRadius) | |
| .outerRadius(outerRadius)); | |
| mainGroup.append('g') | |
| .selectAll('path') | |
| .data(layout.chords) | |
| .enter() | |
| .append('path') | |
| .attr('d', d3.svg.chord() | |
| .radius(innerRadius)) | |
| .style('fill', function(d) { return fill(d.target.index); }) | |
| .style({ | |
| opacity: 1, | |
| 'fill-opacity': 0.67, | |
| stroke: '#000', | |
| 'stroke-width': '0.5px' | |
| }); | |
| var ticks = mainGroup.append('g') | |
| .selectAll('g') | |
| .data(layout.groups) | |
| .enter() | |
| .append('g') | |
| .selectAll('g') | |
| .data(groupTicks) | |
| .enter() | |
| .append('g') | |
| .attr('transform', function (d) { | |
| return 'rotate(' + (d.angle * 180 / Math.PI - 90) + ')' | |
| + 'translate(' + outerRadius + ',0)'; | |
| }); | |
| ticks.append('line') | |
| .attr({ | |
| x1: 1, y1: 0, | |
| x2: 5, y2: 0, | |
| stroke: 'black' | |
| }); | |
| ticks.append('text') | |
| .attr({ | |
| 'x': 8, | |
| 'dy': '.35em', | |
| 'transform': function (d) { return d.angle > Math.PI ? 'rotate(180)translate(-16)' : null; } | |
| }) | |
| .style('text-anchor', function (d) { return d.angle > Math.PI ? 'end' : null; }) | |
| .style('font', '10px sans-serif') | |
| .text(function (d) { return d.label; }); | |
| // Returns an array of tick angles and labels, given a group. | |
| function groupTicks(d) { | |
| var k = (d.endAngle - d.startAngle) / d.value; | |
| return d3.range(0, d.value, 1000).map(function (v, i) { | |
| return { | |
| angle: v * k + d.startAngle, | |
| label: i % 5 ? null : v / 1000 + 'k' | |
| }; | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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