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{ | |
"name": "", | |
"children": [ | |
{ | |
"name": "", | |
"children": [ | |
{ | |
"name": "Basic Materials", | |
"type": "secteur", | |
"children": [ | |
{"name": "Abcde", "note": 5.5, "size": 50300, "type": "entreprise"}, | |
{"name": "fghi", "note": 2.2, "size": 222327, "type": "entreprise"}, | |
{"name": "jklmn", "note": 4, "size": 25909, "type": "entreprise"} | |
] | |
} | |
] | |
} | |
] | |
} |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.node { | |
cursor: pointer; | |
} | |
.node:hover { | |
opacity: 0.7; | |
} | |
.node--leaf { | |
fill: white; | |
} | |
.label, .label2 { | |
font: 11px "Helvetica Neue", Helvetica, Arial, sans-serif; | |
text-anchor: middle; | |
text-shadow: 0 1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff, 0 -1px 0 #fff; | |
display: none; | |
} | |
.label, | |
.node--root, | |
.node--leaf { | |
pointer-events: none; | |
} | |
</style> | |
<body> | |
<div id="container"></div> | |
<script src="//d3js.org/d3.v3.min.js"></script> | |
<script> | |
var margin = 20, | |
diameter = 800; | |
var color = d3.scale.linear() | |
.domain([-1, 5]) | |
.range(["hsl(225, 100%, 97%)", "hsl(210, 90%, 32%)"]) | |
.interpolate(d3.interpolateHcl); | |
var pack = d3.layout.pack() | |
.padding(2) | |
.size([diameter - margin, diameter - margin]) | |
.value(function(d) { return d.size; }) | |
var svg = d3.select("body").append("svg") | |
.attr("width", diameter) | |
.attr("height", diameter) | |
.append("g") | |
.attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")"); | |
d3.json("flare2.json", function(error, root) { | |
if (error) throw error; | |
var focus = root, | |
nodes = pack.nodes(root), | |
view; | |
var circle = svg.selectAll("circle") | |
.data(nodes) | |
.enter().append("circle") | |
.attr("class", function(d) { return d.parent ? d.children ? "node" : "node node--leaf" : "node node--root"; }) | |
.style("fill", function(d) { return d.children ? color(d.depth) : null; }) | |
.on("click", function(d) { if (focus !== d) zoom(d), d3.event.stopPropagation(); }); | |
circle.filter(function(d) { return d.type === "secteur"; }).attr("r", function(d) { return d.r * 1.5 ; }); | |
var text = svg.selectAll("text") | |
.data(nodes) | |
.enter().append("text") | |
.attr("class", function(d) { if (d.type == "secteur") { return "label"; } if (d.type == "entreprise") { return "label2"; }}) | |
.text(function(d) { return d.name; }); | |
svg.selectAll(".label") | |
.style("display", "inline"); | |
var node = svg.selectAll("circle,text"); | |
d3.select("body") | |
.style("background", color(-1)) | |
.on("click", function() { zoom(root); }); | |
zoomTo([root.x, root.y, root.r * 2 + margin]); | |
function zoom(d) { | |
var focus0 = focus; focus = d; | |
var transition = d3.transition() | |
.duration(d3.event.altKey ? 7500 : 750) | |
.tween("zoom", function(d) { | |
var i = d3.interpolateZoom(view, [focus.x, focus.y, focus.r * 2 + margin]); | |
return function(t) { zoomTo(i(t)); }; | |
}); | |
transition.selectAll("text") | |
.filter(function(d) { return d.parent === focus || this.style.display === "inline"; }) | |
.style("fill-opacity", function(d) { return d.parent === focus ? 1 : 0; }) | |
.each("start", function(d) { if (d.parent === focus) this.style.display = "inline"; }) | |
.each("end", function(d) { if (d.parent !== focus) this.style.display = "none"; }); | |
} | |
function zoomTo(v) { | |
var k = diameter / v[2]; view = v; | |
node.attr("transform", function(d) { return "translate(" + (d.x - v[0]) * k + "," + (d.y - v[1]) * k + ")"; }); | |
circle.attr("r", function(d) { return d.r * k; }); | |
} | |
}); | |
d3.select(self.frameElement).style("height", diameter + "px"); | |
</script> |
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