UUorld

We found these election maps on Daily Kos to be very interesting. They provide county-level aggregations of the Democratic primary elections results, using color blending to indicate how much a region favored Clinton, Obama, or Edwards.

Bjørn Sandvik, of the , has a great collection of thematic mapping information. In a recent , he compares the maps generated by UUorld to similar maps that can be generated with KML and Google Earth. Over the past few months, we have developed some tools to automate KML generation in this manner, and it appears there are several inherent problems in using KML to draw thematic prism maps, especially those that change over time, since KML requires the repetition of all geometries for each timeslice.

We highly recommend the Thematic Mapping Blog!