title: Pie charts clustering on Google Maps [batchgeo-like]
body: <p>Anybody knows how to remake something similar to what <em>Batchgeo</em> does when clusters/groups markers with dynamic pie charts?</p>
  
  <p>Example: <a href="http://www.ilfattoquotidiano.it/patrie-galere-deaths-italian-prisons-since-2002-2012/" rel="nofollow">batchgeo map with pie clustering</a></p>
  
  <p>Thanks,</p>
  
  <p>Regards</p>