d3.examples/dendrogram02.html at master · meccanismocomplesso/d3.examples · GitHub

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<!DOCTYPE html><meta charset="utf-8">
<style>
.node circle {
  fill: #fff;
  stroke: steelblue;
  stroke-width: 1.5px;
}
.node {
  font: 20px sans-serif;
}
.link {
  fill: none;
  stroke: #ccc;
  stroke-width: 1.5px;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.js"></script>
<script type="text/javascript">

var radius = 350;
var margin = 120;
var angle = 360;
var cluster = d3.layout.cluster()
 .size([angle, radius-margin]);

var diagonal = d3.svg.diagonal.radial()
 .projection (function(d) { return [d.y, d.x / 180* Math.PI];});

var svg = d3.select("body").append("svg")
 .attr("width",2*radius)
 .attr("height",2*radius)
 .append("g")
 .attr("transform","translate("+radius + "," + radius + ")");

d3.json("dendrogram02.json", function(error, root){
 var nodes = cluster.nodes(root);
 var links = cluster.links(nodes);
 var link = svg.selectAll(".link")
 .data(links)
 .enter().append("path")
 .attr("class","link")
 .attr("d", diagonal);

 var node = svg.selectAll(".node")
 .data(nodes)
 .enter().append("g")
 .attr("class","node")
 .attr("transform", function(d) { return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")"; });

 node.append("circle")
 .attr("r", 4.5);

 node.append("text")
 .attr("dy", ".31em")
 .attr("text-anchor", function(d) { return d.x < 180 ? "start" : "end"; })
 .attr("transform", function(d) { return d.x < 180 ? "translate(8)" : "rotate(180)translate(-8)"; })
 .text(function(d) { return d.name; });
});
</script>
</body>