Cartogram creation

A cartogram is a variable scale map that preserves topological relations.

Cartograms can be used to visualize statistical data.

Example cartogram

The following example visualizes the distribution of visitors:

Cartogram example

Software to create cartograms

The ScapeToad software can be used to create cartograms.

It uses the diffusion-based Gastner/Newman algorithm.

ScapeToad is free software (open source) released under the terms of the GPL.

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