toolkit/javascript/d3/examples/partition/partition-sunburst-zoom.html
changeset 47 c0b4a8b5a012
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/examples/partition/partition-sunburst-zoom.html	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
+    <title>Partition - Sunburst</title>
+    <script type="text/javascript" src="../../d3.js"></script>
+    <script type="text/javascript" src="../../d3.layout.js"></script>
+    <style type="text/css">
+
+path {
+  stroke: #fff;
+  fill-rule: evenodd;
+}
+
+    </style>
+  </head>
+  <body>
+    <div id="chart"></div>
+    <script type="text/javascript">
+
+var w = 960,
+    h = 700,
+    r = Math.min(w, h) / 2,
+    x = d3.scale.linear().range([0, 2 * Math.PI]),
+    y = d3.scale.sqrt().range([0, r]),
+    color = d3.scale.category20c();
+
+var vis = d3.select("#chart").append("svg:svg")
+    .attr("width", w)
+    .attr("height", h)
+  .append("svg:g")
+    .attr("transform", "translate(" + w / 2 + "," + h / 2 + ")");
+
+var partition = d3.layout.partition()
+    .value(function(d) { return d.size; });
+
+var arc = d3.svg.arc()
+    .startAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x))); })
+    .endAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x + d.dx))); })
+    .innerRadius(function(d) { return Math.max(0, y(d.y)); })
+    .outerRadius(function(d) { return Math.max(0, y(d.y + d.dy)); });
+
+d3.json("../data/flare.json", function(json) {
+  var path = vis.data([json]).selectAll("path")
+      .data(partition.nodes)
+    .enter().append("svg:path")
+      .attr("d", arc)
+      .style("fill", function(d) { return color((d.children ? d : d.parent).name); })
+      .on("click", click);
+
+  function click(d) {
+    path.transition()
+      .duration(750)
+      .attrTween("d", arcTween(d));
+  }
+});
+
+// Interpolate the scales!
+function arcTween(d) {
+  var xd = d3.interpolate(x.domain(), [d.x, d.x + d.dx]),
+      yd = d3.interpolate(y.domain(), [d.y, 1]),
+      yr = d3.interpolate(y.range(), [d.y ? 20 : 0, r]);
+  return function(d, i) {
+    return i
+        ? function(t) { return arc(d); }
+        : function(t) { x.domain(xd(t)); y.domain(yd(t)).range(yr(t)); return arc(d); };
+  };
+}
+
+    </script>
+  </body>
+</html>