Simon Willison’s Weblog

1st November 2009 - Link Blog

Cartographer.js. “Thematic mapping for Google Maps”—which means an easy way of adding heat maps (aka chloropleths), pie charts and point clusters as a layer over a Google map.

Posted 1st November 2009 at 1:20 pm

Recent articles

The Pelican comparison grid for Astra is pretty interesting - 4th September 2026
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This is a link post by Simon Willison, posted on 1st November 2009.

catography 1 chloropleths 1 google 415 google-maps 53 graphs 7 heatmaps 3 infographics 7 mapping 54 maps 43 piecharts 1 visualisation 15

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