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Continuous area cartograms with d3 and TopoJSON

Home Page: http://prag.ma/code/d3-cartogram/

License: MIT License

Makefile 2.40% HTML 55.17% JavaScript 42.43%

topogram's Introduction

Topogram

This is a JavaScript implementation of an algoritm to construct continuous area cartograms, by James A. Dougenik, Nicholas R. Chrisman and Duane R. Niemeyer, ©1985 by the Association of American Geographers. It relies heavily on d3 for rendering and TopoJSON both for writing and reading topological JSON geodata.

The included example combines TopoJSON-encoded and boundaries of the United States from Natural Earth with 2011 US Census population estimates to size each state proportionally.

topogram's People

Contributors

shawnbot avatar ale0xb avatar jasondavies avatar lapidus avatar emeeks avatar joao avatar sanand0 avatar rufushuang avatar

Watchers

Ben Bahrenburg avatar James Cloos avatar

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