message: [big_number] tooltip shows in the wrong place
diff: @@ -186,11 +186,11 @@ function bigNumberVis(slice, payload) {
  .attr('fill-opacity', 0)
  .on('mouseover', function (d) {
  d3.select(this).attr('fill-opacity', 1);
  - tip.show(d);
  + tip.show(d, this);
  })
  .on('mouseout', function (d) {
  d3.select(this).attr('fill-opacity', 0);
  - tip.hide(d);
  + tip.hide(d, this);
  });
  div.on('mouseover', function () {
  