title: d3js - animate tree structure
body: <p>I'm using the radial tree example from d3.js (<a href="https://github.com/mbostock/d3/blob/master/examples/tree/tree-radial.js" rel="nofollow">tree-radial.js</a>) and when you click on a node it should move to the center (set it as the new root). I want to get a smooth transition from one tree structure to another but I can't get it to work at all. The click is recognized but I'm not sure how to transition the nodes. Can somebody explain me the steps to get this work or link a short example where this is done?</p>