A combinatorial approach to cartograms
Computational Geometry: Theory and Applications
Proceedings of the conference on Visualization '98
Continuous cartogram construction
Proceedings of the conference on Visualization '98
LEDA: a platform for combinatorial and geometric computing
LEDA: a platform for combinatorial and geometric computing
Visualizing geographic information: VisualPoints vs CartoDraw
Information Visualization
IEEE Computer Graphics and Applications
A Visualization System for Space-Time and Multivariate Patterns (VIS-STAMP)
IEEE Transactions on Visualization and Computer Graphics
Carto-SOM: cartogram creation using self-organizing maps
International Journal of Geographical Information Science
Information Visualization
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Cartograms are a well-known technique for showing geography-related statistical information, such as population demographics and epidemiological data. The basic idea is to distort a map by resizing its regions according to a statistical parameter, but in a way that keeps the maprecognizable. In this paper, we deal with the problem of making continuous cartograms that strictly retain the topology of the input mesh. We compare two algorithms to solve the continuous cartogram problem. The first one uses an iterative relocation of the vertices based on scanlines. The second one is based on the Gridfit technique, which uses pixel-based distortion based on a quadtree-like data structure.