| author | Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr> |
| Fri, 18 Apr 2014 14:31:58 +0200 | |
| changeset 51 | 79833eaa394a |
| parent 47 | c0b4a8b5a012 |
| permissions | -rw-r--r-- |
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1 |
<!DOCTYPE html> |
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2 |
<html> |
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3 |
<head> |
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4 |
<meta http-equiv="Content-type" content="text/html; charset=utf-8"> |
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5 |
<title>Chord Diagram</title> |
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6 |
<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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8 |
<style type="text/css"> |
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9 |
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body { |
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11 |
font: 10px sans-serif; |
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12 |
} |
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13 |
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14 |
path.chord { |
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15 |
fill-opacity: .67; |
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16 |
} |
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18 |
</style> |
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19 |
</head> |
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20 |
<body> |
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21 |
<script type="text/javascript"> |
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22 |
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23 |
var r1 = 960 / 2, |
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24 |
r0 = r1 - 120; |
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var fill = d3.scale.category20c(); |
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27 |
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var chord = d3.layout.chord() |
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29 |
.padding(.04) |
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30 |
.sortSubgroups(d3.descending) |
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31 |
.sortChords(d3.descending); |
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32 |
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var arc = d3.svg.arc() |
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34 |
.innerRadius(r0) |
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35 |
.outerRadius(r0 + 20); |
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36 |
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37 |
var svg = d3.select("body").append("svg:svg") |
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38 |
.attr("width", r1 * 2) |
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39 |
.attr("height", r1 * 2) |
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.append("svg:g") |
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41 |
.attr("transform", "translate(" + r1 + "," + r1 + ")"); |
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42 |
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43 |
d3.json("../data/flare-imports.json", function(imports) { |
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44 |
var indexByName = {}, |
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nameByIndex = {}, |
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matrix = [], |
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n = 0; |
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48 |
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// Returns the Flare package name for the given class name. |
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50 |
function name(name) { |
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return name.substring(0, name.lastIndexOf(".")).substring(6); |
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} |
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53 |
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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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57 |
if (!(d in indexByName)) { |
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nameByIndex[n] = d; |
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indexByName[d] = n++; |
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60 |
} |
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61 |
}); |
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62 |
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63 |
// Construct a square matrix counting package imports. |
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64 |
imports.forEach(function(d) { |
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var source = indexByName[name(d.name)], |
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66 |
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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72 |
}); |
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73 |
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74 |
chord.matrix(matrix); |
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75 |
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76 |
var g = svg.selectAll("g.group") |
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77 |
.data(chord.groups) |
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78 |
.enter().append("svg:g") |
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79 |
.attr("class", "group"); |
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80 |
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81 |
g.append("svg:path") |
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82 |
.style("fill", function(d) { return fill(d.index); }) |
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83 |
.style("stroke", function(d) { return fill(d.index); }) |
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84 |
.attr("d", arc); |
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85 |
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86 |
g.append("svg:text") |
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87 |
.each(function(d) { d.angle = (d.startAngle + d.endAngle) / 2; }) |
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88 |
.attr("dy", ".35em") |
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89 |
.attr("text-anchor", function(d) { return d.angle > Math.PI ? "end" : null; }) |
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90 |
.attr("transform", function(d) { |
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91 |
return "rotate(" + (d.angle * 180 / Math.PI - 90) + ")" |
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92 |
+ "translate(" + (r0 + 26) + ")" |
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93 |
+ (d.angle > Math.PI ? "rotate(180)" : ""); |
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94 |
}) |
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95 |
.text(function(d) { return nameByIndex[d.index]; }); |
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96 |
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97 |
svg.selectAll("path.chord") |
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98 |
.data(chord.chords) |
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99 |
.enter().append("svg:path") |
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100 |
.attr("class", "chord") |
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.style("stroke", function(d) { return d3.rgb(fill(d.source.index)).darker(); }) |
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.style("fill", function(d) { return fill(d.source.index); }) |
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parents:
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.attr("d", d3.svg.chord().radius(r0)); |
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104 |
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parents:
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105 |
}); |
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106 |
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107 |
</script> |
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108 |
</body> |
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109 |
</html> |