| author | Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr> |
| Thu, 10 Apr 2014 14:20:23 +0200 | |
| changeset 47 | c0b4a8b5a012 |
| permissions | -rw-r--r-- |
|
47
c0b4a8b5a012
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 |
<title>Force-Directed Map</title> |
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5 |
<script type="text/javascript" src="../../d3.js"></script> |
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6 |
<script type="text/javascript" src="../../d3.geo.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 |
path { |
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12 |
fill: #ddd; |
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13 |
fill-opacity: .8; |
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14 |
stroke: #fff; |
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15 |
stroke-width: 1.5px; |
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16 |
} |
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17 |
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18 |
line { |
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19 |
stroke: #999; |
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20 |
} |
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21 |
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22 |
</style> |
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23 |
</head> |
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24 |
<body> |
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25 |
<script type="text/javascript"> |
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26 |
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27 |
var w = 960, |
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28 |
h = 500; |
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29 |
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30 |
var path = d3.geo.path(), |
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31 |
force = d3.layout.force().size([w, h]); |
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32 |
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33 |
var svg = d3.select("body").append("svg:svg") |
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34 |
.attr("width", w) |
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parents:
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35 |
.attr("height", h); |
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c0b4a8b5a012
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36 |
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c0b4a8b5a012
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37 |
d3.json("../data/us-states.json", function(states) { |
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38 |
var nodes = [], |
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39 |
links = []; |
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40 |
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41 |
states.features.forEach(function(d, i) { |
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if (d.id == "02" || d.id == "15" || d.id == "72") return; |
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43 |
var centroid = path.centroid(d); |
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44 |
centroid.x = centroid[0]; |
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45 |
centroid.y = centroid[1]; |
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centroid.feature = d; |
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47 |
nodes.push(centroid); |
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48 |
}); |
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49 |
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50 |
d3.geom.delaunay(nodes).forEach(function(d) { |
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51 |
links.push(edge(d[0], d[1])); |
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52 |
links.push(edge(d[1], d[2])); |
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53 |
links.push(edge(d[2], d[0])); |
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54 |
}); |
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55 |
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56 |
force |
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57 |
.gravity(0) |
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58 |
.charge(0) |
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59 |
.nodes(nodes) |
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60 |
.links(links) |
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61 |
.linkDistance(function(d) { return d.distance; }) |
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62 |
.start(); |
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63 |
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64 |
var link = svg.selectAll("line") |
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65 |
.data(links) |
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66 |
.enter().append("svg:line") |
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67 |
.attr("x1", function(d) { return d.source.x; }) |
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68 |
.attr("y1", function(d) { return d.source.y; }) |
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69 |
.attr("x2", function(d) { return d.target.x; }) |
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70 |
.attr("y2", function(d) { return d.target.y; }); |
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71 |
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72 |
var node = svg.selectAll("g") |
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73 |
.data(nodes) |
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74 |
.enter().append("svg:g") |
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75 |
.attr("transform", function(d) { return "translate(" + -d.x + "," + -d.y + ")"; }) |
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76 |
.call(force.drag) |
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77 |
.append("svg:path") |
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parents:
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78 |
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }) |
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79 |
.attr("d", function(d) { return path(d.feature); }); |
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80 |
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81 |
force.on("tick", function(e) { |
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82 |
link.attr("x1", function(d) { return d.source.x; }) |
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83 |
.attr("y1", function(d) { return d.source.y; }) |
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84 |
.attr("x2", function(d) { return d.target.x; }) |
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85 |
.attr("y2", function(d) { return d.target.y; }); |
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86 |
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87 |
node.attr("transform", function(d) { |
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88 |
return "translate(" + d.x + "," + d.y + ")"; |
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89 |
}); |
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90 |
}); |
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91 |
}); |
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92 |
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93 |
function edge(a, b) { |
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94 |
var dx = a[0] - b[0], dy = a[1] - b[1]; |
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95 |
return { |
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96 |
source: a, |
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97 |
target: b, |
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98 |
distance: Math.sqrt(dx * dx + dy * dy) |
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99 |
}; |
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c0b4a8b5a012
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parents:
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} |
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parents:
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|
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add toolkit.html + démonstrateurs
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parents:
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</script> |
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parents:
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</body> |
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parents:
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</html> |