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Proceedings Paper

The consistency assessment of topological relations in cartographic generalization
Author(s): Chunyan Zheng; Qingsheng Guo; Xiaochu Du
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Paper Abstract

The field of research in the generalization assessment has been less studied than the generalization process itself, and it is very important to keep topological relation consistency for meeting generalization quality. This paper proposes a methodology to assess the quality of generalized map from topological relations consistency. Taking roads (including railway) and residential areas for examples, from the viewpoint of the spatial cognition, some issues about topological consistency in different map scales are analyzed. The statistic information about the inconsistent topological relations can be obtained by comparing the two matrices: one is the matrix for the topological relations in the generalized map; the other is the theoretical matrix for the topological relations that should be maintained after generalization. Based on the fuzzy set theory and the classification of map object types, the consistency evaluation model of topological relations is established. The paper proves the feasibility of the method through the example about how to evaluate the local topological relations between simple roads and residential area finally.

Paper Details

Date Published: 28 October 2006
PDF: 12 pages
Proc. SPIE 6420, Geoinformatics 2006: Geospatial Information Science, 64200T (28 October 2006); doi: 10.1117/12.712901
Show Author Affiliations
Chunyan Zheng, Wuhan Univ. (China)
Jiaying Univ. (China)
Qingsheng Guo, Wuhan Univ. (China)
Xiaochu Du, Hubei Univ. (China)

Published in SPIE Proceedings Vol. 6420:
Geoinformatics 2006: Geospatial Information Science
Jianya Gong; Jingxiong Zhang, Editor(s)

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