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Mathematical definitions of point,line and area symbols in cartography |
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| Authors: | Wei Wenzhan Zhong Yexun Peng Yueying Zheng Hongbo |
| Affiliation: | Institute of Mathematics and information Science , Guangxi Teachers College , Nanning , China |
| Abstract: | |
| Keywords: | point cartograrphic symbol line cartographic symbol area cartographic symbol figure |