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Continuous area cartograms distort planimetric maps to produce a desired set of areas while preserving the topology of the original map. We present a computer algorithm which achieves the result iteratively with high accuracy. The approach uses a model of forces exerted from each polygon centroid, acting on coordinates in inverse proportion to distance. This algorithm can handle more realistic descriptions of polygon boundaries than previous algorithms and manual methods, thus enhancing visual recognition.
Dougenik et al. (Fri,) studied this question.