title: dc.js - Listening for chart group render
body: <p>I'm trying to refactor some custom d3 code that I wrote to render a series of crossfilter-driven charts by bringing in dc.js. </p>
  
  <p>My main problem is that I have some chart types that are not supported by dc.js (e.g. a <a href="http://bl.ocks.org/mbostock/4063423">Sunburst Partition</a>) and I'm trying to figure out how to render them in conjunction with a dc.js chart group.</p>
  
  <p>Filtering a single dc.js chart will automatically render / redraw all other charts belonging to the same <a href="https://github.com/dc-js/dc.js/blob/master/web/docs/api-latest.md#chartgroupgroup">chartGroup</a>. Is it possible to somehow hook into that global re-render event, so that I can re-draw the non-dc charts at the same time?</p>
  
  <p>I understand that there are listeners on each individual chart, e.g. <code>chart.on("postRender", function(chart){...})</code> but there doesn't seem to be a way to hook into re-rendering a group of charts. Is there a good pattern by which this could be accomplished?</p>