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Algorithmic Aspects of Proportional Symbol Maps |
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| Authors: | Sergio Cabello Herman Haverkort Marc van Kreveld Bettina Speckmann |
| Affiliation: | 1. Department of Mathematics, Institute for Mathematics, Physics and Mechanics, Ljubljana, Slovenia 2. Department of Mathematics and Computer Science, TU Eindhoven, Eindhoven, The Netherlands 3. Department of Information and Computing Sciences, Utrecht University, Utrecht, The Netherlands |
| Abstract: | Proportional symbol maps visualize numerical data associated with point locations by placing a scaled symbol—typically an opaque disk or square—at the corresponding point on a map. The area of each symbol is proportional to the numerical value associated with its location. Every visually meaningful proportional symbol map will contain at least some overlapping symbols. These need to be drawn in such a way that the user can still judge their relative sizes accurately. |
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