diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/examples/tree/tree.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/examples/tree/tree.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,39 @@
+var w = 960,
+    h = 2000;
+
+var tree = d3.layout.tree()
+    .size([h, w - 160]);
+
+var diagonal = d3.svg.diagonal()
+    .projection(function(d) { return [d.y, d.x]; });
+
+var vis = d3.select("#chart").append("svg:svg")
+    .attr("width", w)
+    .attr("height", h)
+  .append("svg:g")
+    .attr("transform", "translate(40, 0)");
+
+d3.json("../data/flare.json", function(json) {
+  var nodes = tree.nodes(json);
+
+  var link = vis.selectAll("path.link")
+      .data(tree.links(nodes))
+    .enter().append("svg:path")
+      .attr("class", "link")
+      .attr("d", diagonal);
+
+  var node = vis.selectAll("g.node")
+      .data(nodes)
+    .enter().append("svg:g")
+      .attr("class", "node")
+      .attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; })
+
+  node.append("svg:circle")
+      .attr("r", 4.5);
+
+  node.append("svg:text")
+      .attr("dx", function(d) { return d.children ? -8 : 8; })
+      .attr("dy", 3)
+      .attr("text-anchor", function(d) { return d.children ? "end" : "start"; })
+      .text(function(d) { return d.name; });
+});