grab all of the data from d3

splatta.js

// select everything
var data = d3.selectAll("*")
  // filter down to nodes with bound data objects
  .filter(function(d) { return typeof d === "object"; })
  // attach a reference back to the node on each data object
  .each(function(d) { d.__node__ = this; })
  // return the list of data objects as an array
  .data();