Cartographer: Thematic Mapping For Google Maps

Thematic maps are very useful when describing statistical data about places. The data, simply, becomes much easier to understand.

Cartographer is a JavaScript library for creating thematic maps on Google Maps which supports custom styling.

It is only a one JavaScript file that relies on the powerful Raphael.js vector-graphics library.


It supports 3 visualizing types:

  • Chloropleth (color coded regions)
  • Pie charts
  • Point clusters

The areas on maps are mentioned as latitudes or regions (depending on the type) which means no hacking or manual calculations.

Every visualization type comes with different options like colors, opacity, stroke & more.

P.S. The library is currently on alpha state but pretty solid.

1 Comment
  1. Reply Rodolfo November 2, 2009 at 4:33 PM

    This is a very interesting plugin for SOLAP (Spatial OLAP) applications.
    And this kind of applications will start to appear more and more in future.
    I think Google should develop something like Oracle Spatial that would enable us to mix table data and geographical information.

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