| author | Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr> |
| Thu, 10 Apr 2014 14:20:23 +0200 | |
| changeset 47 | c0b4a8b5a012 |
| permissions | -rw-r--r-- |
|
47
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add toolkit.html + démonstrateurs
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parents:
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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>Force-Directed Graph</title> |
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6 |
<script type="text/javascript" src="../../d3.js"></script> |
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7 |
<script type="text/javascript" src="../../d3.geom.js"></script> |
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8 |
<script type="text/javascript" src="../../d3.layout.js"></script> |
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9 |
<style type="text/css"> |
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10 |
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11 |
circle.node { |
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12 |
cursor: pointer; |
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13 |
stroke: #3182bd; |
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14 |
stroke-width: 1.5px; |
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15 |
} |
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16 |
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17 |
line.link { |
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18 |
fill: none; |
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19 |
stroke: #9ecae1; |
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c0b4a8b5a012
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parents:
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stroke-width: 1.5px; |
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c0b4a8b5a012
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21 |
} |
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22 |
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23 |
</style> |
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24 |
</head> |
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25 |
<body> |
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26 |
<div id="chart"></div> |
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27 |
<script type="text/javascript"> |
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28 |
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var w = 960, |
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30 |
h = 500, |
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31 |
node, |
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32 |
link, |
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33 |
root; |
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34 |
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35 |
var force = d3.layout.force() |
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parents:
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36 |
.on("tick", tick) |
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c0b4a8b5a012
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parents:
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37 |
.size([w, h]); |
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38 |
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c0b4a8b5a012
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parents:
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39 |
var vis = d3.select("#chart").append("svg:svg") |
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.attr("width", w) |
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c0b4a8b5a012
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41 |
.attr("height", h); |
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42 |
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43 |
d3.json("../data/flare.json", function(json) { |
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44 |
root = json; |
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45 |
update(); |
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parents:
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46 |
}); |
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47 |
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48 |
function update() { |
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49 |
var nodes = flatten(root), |
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links = d3.layout.tree().links(nodes); |
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51 |
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52 |
// Restart the force layout. |
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parents:
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53 |
force |
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54 |
.nodes(nodes) |
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55 |
.links(links) |
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56 |
.start(); |
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57 |
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58 |
// Update the links… |
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59 |
link = vis.selectAll("line.link") |
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60 |
.data(links, function(d) { return d.target.id; }); |
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61 |
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62 |
// Enter any new links. |
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63 |
link.enter().insert("svg:line", ".node") |
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64 |
.attr("class", "link") |
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65 |
.attr("x1", function(d) { return d.source.x; }) |
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66 |
.attr("y1", function(d) { return d.source.y; }) |
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67 |
.attr("x2", function(d) { return d.target.x; }) |
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.attr("y2", function(d) { return d.target.y; }); |
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69 |
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70 |
// Exit any old links. |
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71 |
link.exit().remove(); |
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72 |
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73 |
// Update the nodes… |
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74 |
node = vis.selectAll("circle.node") |
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75 |
.data(nodes, function(d) { return d.id; }) |
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76 |
.style("fill", color); |
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77 |
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// Enter any new nodes. |
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79 |
node.enter().append("svg:circle") |
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80 |
.attr("class", "node") |
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81 |
.attr("cx", function(d) { return d.x; }) |
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82 |
.attr("cy", function(d) { return d.y; }) |
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83 |
.attr("r", function(d) { return Math.sqrt(d.size) / 10 || 4.5; }) |
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84 |
.style("fill", color) |
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85 |
.on("click", click) |
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86 |
.call(force.drag); |
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87 |
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88 |
// Exit any old nodes. |
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89 |
node.exit().remove(); |
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90 |
} |
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91 |
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92 |
function tick() { |
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93 |
link.attr("x1", function(d) { return d.source.x; }) |
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94 |
.attr("y1", function(d) { return d.source.y; }) |
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95 |
.attr("x2", function(d) { return d.target.x; }) |
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96 |
.attr("y2", function(d) { return d.target.y; }); |
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97 |
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98 |
node.attr("cx", function(d) { return d.x; }) |
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99 |
.attr("cy", function(d) { return d.y; }); |
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100 |
} |
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101 |
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102 |
// Color leaf nodes orange, and packages white or blue. |
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103 |
function color(d) { |
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104 |
return d._children ? "#3182bd" : d.children ? "#c6dbef" : "#fd8d3c"; |
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105 |
} |
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106 |
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107 |
// Toggle children on click. |
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108 |
function click(d) { |
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109 |
if (d.children) { |
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110 |
d._children = d.children; |
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111 |
d.children = null; |
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112 |
} else { |
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113 |
d.children = d._children; |
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114 |
d._children = null; |
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115 |
} |
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116 |
update(); |
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117 |
} |
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118 |
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119 |
// Returns a list of all nodes under the root. |
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120 |
function flatten(root) { |
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121 |
var nodes = [], i = 0; |
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122 |
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123 |
function recurse(node) { |
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124 |
if (node.children) node.children.forEach(recurse); |
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125 |
if (!node.id) node.id = ++i; |
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126 |
nodes.push(node); |
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127 |
} |
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128 |
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129 |
recurse(root); |
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130 |
return nodes; |
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131 |
} |
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132 |
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133 |
</script> |
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134 |
</body> |
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135 |
</html> |