Dotdensity

[wpears]

Wrote in a dotdensity renderer for the HMDA data. Runs off voronoi polygons generated from the tract centroids. Decent way to look at the data where data is dense.. Not as much where data is sparse or zoom level is high.

[coveralls]

Coverage remained the same at 76.84% when pulling 6606590 on wpears:dotdensity into db7d344 on cfpb:master.

[wpears]

It should be noted that the voronoi approach is obviously wrong near boundaries (see: points in the ocean). These would have to be clipped to a geometry which currently isn't returned by the API (and at that point, tracts could be used instead of voronoi polygons for the dot density input).

[cmc333333]

This sounds really interesting. Mind providing a screen shot?

[wpears]

@sephcoster has been working on incorporating this upstream.
When we demo'd this this at the beginning of February it looked something like this

[cmc333333]

Very nice!