2011-06-25 21:41:38 +04:00
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-type" content="text/html; charset=utf-8">
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<title>Chord Diagram</title>
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<script type="text/javascript" src="../../d3.js"></script>
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<script type="text/javascript" src="../../d3.layout.js"></script>
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<style type="text/css">
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body {
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font: 10px sans-serif;
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}
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path.chord {
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fill-opacity: .67;
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}
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</style>
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</head>
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<body>
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<script type="text/javascript">
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var r1 = 960 / 2,
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r0 = r1 - 120;
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var fill = d3.scale.category20c();
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var chord = d3.layout.chord()
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.padding(.04)
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.sortSubgroups(d3.descending)
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.sortChords(d3.descending);
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var arc = d3.svg.arc()
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.innerRadius(r0)
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.outerRadius(r0 + 20);
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var svg = d3.select("body").append("svg:svg")
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.attr("width", r1 * 2)
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.attr("height", r1 * 2)
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.append("svg:g")
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.attr("transform", "translate(" + r1 + "," + r1 + ")");
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2011-07-04 20:41:32 +04:00
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d3.json("../data/flare-imports.json", function(imports) {
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2011-06-25 21:41:38 +04:00
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var indexByName = {},
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nameByIndex = {},
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matrix = [],
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n = 0;
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// Returns the Flare package name for the given class name.
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function name(name) {
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return name.substring(0, name.lastIndexOf(".")).substring(6);
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}
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// Compute a unique index for each package name.
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imports.forEach(function(d) {
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d = name(d.name);
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if (!(d in indexByName)) {
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nameByIndex[n] = d;
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indexByName[d] = n++;
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}
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});
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// Construct a square matrix counting package imports.
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imports.forEach(function(d) {
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var source = indexByName[name(d.name)],
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row = matrix[source];
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if (!row) {
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row = matrix[source] = [];
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for (var i = -1; ++i < n;) row[i] = 0;
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}
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d.imports.forEach(function(d) { row[indexByName[name(d)]]++; });
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});
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chord.matrix(matrix);
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var g = svg.selectAll("g.group")
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.data(chord.groups)
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.enter().append("svg:g")
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.attr("class", "group");
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g.append("svg:path")
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.style("fill", function(d) { return fill(d.index); })
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.style("stroke", function(d) { return fill(d.index); })
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.attr("d", arc);
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g.append("svg:text")
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.each(function(d) { d.angle = (d.startAngle + d.endAngle) / 2; })
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.attr("dy", ".35em")
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.attr("text-anchor", function(d) { return d.angle > Math.PI ? "end" : null; })
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.attr("transform", function(d) {
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return "rotate(" + (d.angle * 180 / Math.PI - 90) + ")"
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+ "translate(" + (r0 + 26) + ")"
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+ (d.angle > Math.PI ? "rotate(180)" : "");
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})
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.text(function(d) { return nameByIndex[d.index]; });
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svg.selectAll("path.chord")
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.data(chord.chords)
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.enter().append("svg:path")
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.attr("class", "chord")
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2011-06-26 00:26:32 +04:00
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.style("stroke", function(d) { return d3.rgb(fill(d.source.index)).darker(); })
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2011-06-25 21:48:31 +04:00
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.style("fill", function(d) { return fill(d.source.index); })
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2011-06-25 21:41:38 +04:00
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.attr("d", d3.svg.chord().radius(r0));
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});
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</script>
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</body>
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</html>
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