| 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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47
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add toolkit.html + démonstrateurs
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<!DOCTYPE html> |
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<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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<title>Node-Link Tree</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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8 |
<style type="text/css"> |
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9 |
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.node circle { |
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cursor: pointer; |
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fill: #fff; |
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stroke: steelblue; |
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stroke-width: 1.5px; |
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15 |
} |
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17 |
.node text { |
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font: 10px sans-serif; |
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19 |
} |
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path.link { |
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fill: none; |
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23 |
stroke: #ccc; |
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stroke-width: 1.5px; |
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25 |
} |
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27 |
</style> |
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28 |
</head> |
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29 |
<body> |
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30 |
<div id="chart"></div> |
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<script type="text/javascript"> |
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var m = [20, 120, 20, 120], |
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w = 1280 - m[1] - m[3], |
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h = 800 - m[0] - m[2], |
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i = 0, |
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duration = 500, |
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38 |
root; |
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39 |
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var tree = d3.layout.tree() |
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.size([h, w]); |
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42 |
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var diagonal = d3.svg.diagonal() |
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44 |
.projection(function(d) { return [d.y, d.x]; }); |
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45 |
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var vis = d3.select("#chart").append("svg:svg") |
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.attr("width", w + m[1] + m[3]) |
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.attr("height", h + m[0] + m[2]) |
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.append("svg:g") |
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.attr("transform", "translate(" + m[3] + "," + m[0] + ")"); |
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51 |
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d3.json("../data/flare.json", function(json) { |
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root = json; |
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root.x0 = h / 2; |
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root.y0 = 0; |
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56 |
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function collapse(d) { |
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if (d.children) { |
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d._children = d.children; |
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d._children.forEach(collapse); |
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d.children = null; |
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} |
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63 |
} |
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64 |
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root.children.forEach(collapse); |
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update(root); |
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67 |
}); |
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68 |
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function update(source) { |
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70 |
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// Compute the new tree layout. |
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72 |
var nodes = tree.nodes(root).reverse(); |
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73 |
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// Normalize for fixed-depth. |
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nodes.forEach(function(d) { d.y = d.depth * 180; }); |
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76 |
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// Update the nodes… |
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78 |
var node = vis.selectAll("g.node") |
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.data(nodes, function(d) { return d.id || (d.id = ++i); }); |
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80 |
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// Enter any new nodes at the parent's previous position. |
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var nodeEnter = node.enter().append("svg:g") |
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83 |
.attr("class", "node") |
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84 |
.attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; }) |
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85 |
.on("click", click); |
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86 |
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87 |
nodeEnter.append("svg:circle") |
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88 |
.attr("r", 1e-6) |
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89 |
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); |
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90 |
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91 |
nodeEnter.append("svg:text") |
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.attr("x", function(d) { return d.children || d._children ? -10 : 10; }) |
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93 |
.attr("dy", ".35em") |
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94 |
.attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; }) |
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95 |
.text(function(d) { return d.name; }) |
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96 |
.style("fill-opacity", 1e-6); |
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97 |
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98 |
// Transition nodes to their new position. |
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99 |
var nodeUpdate = node.transition() |
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100 |
.duration(duration) |
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101 |
.attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; }); |
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102 |
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103 |
nodeUpdate.select("circle") |
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104 |
.attr("r", 4.5) |
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105 |
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); |
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106 |
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107 |
nodeUpdate.select("text") |
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108 |
.style("fill-opacity", 1); |
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109 |
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110 |
// Transition exiting nodes to the parent's new position. |
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111 |
var nodeExit = node.exit().transition() |
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112 |
.duration(duration) |
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113 |
.attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; }) |
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114 |
.remove(); |
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115 |
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116 |
nodeExit.select("circle") |
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117 |
.attr("r", 1e-6); |
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118 |
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119 |
nodeExit.select("text") |
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120 |
.style("fill-opacity", 1e-6); |
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121 |
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122 |
// Update the links… |
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123 |
var link = vis.selectAll("path.link") |
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124 |
.data(tree.links(nodes), function(d) { return d.target.id; }); |
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125 |
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126 |
// Enter any new links at the parent's previous position. |
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127 |
link.enter().insert("svg:path", "g") |
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128 |
.attr("class", "link") |
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129 |
.attr("d", function(d) { |
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130 |
var o = {x: source.x0, y: source.y0}; |
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131 |
return diagonal({source: o, target: o}); |
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132 |
}) |
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133 |
.transition() |
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134 |
.duration(duration) |
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135 |
.attr("d", diagonal); |
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136 |
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137 |
// Transition links to their new position. |
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138 |
link.transition() |
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139 |
.duration(duration) |
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140 |
.attr("d", diagonal); |
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141 |
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142 |
// Transition exiting nodes to the parent's new position. |
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143 |
link.exit().transition() |
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144 |
.duration(duration) |
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145 |
.attr("d", function(d) { |
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146 |
var o = {x: source.x, y: source.y}; |
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147 |
return diagonal({source: o, target: o}); |
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148 |
}) |
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149 |
.remove(); |
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150 |
|
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151 |
// Stash the old positions for transition. |
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152 |
nodes.forEach(function(d) { |
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153 |
d.x0 = d.x; |
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154 |
d.y0 = d.y; |
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155 |
}); |
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156 |
} |
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157 |
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158 |
// Toggle children on click. |
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159 |
function click(d) { |
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160 |
if (d.children) { |
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161 |
d._children = d.children; |
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162 |
d.children = null; |
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163 |
} else { |
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164 |
d.children = d._children; |
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165 |
d._children = null; |
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166 |
} |
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167 |
update(d); |
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168 |
} |
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169 |
|
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170 |
</script> |
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171 |
</body> |
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172 |
</html> |