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Proceedings Paper

Research on sharing of geographic information portrayal based on quantitative visual variables
Author(s): Yang Mei; Lin Li; Haihong Zhu
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Paper Abstract

Geographic information portrayal standard within geographic information standards community in ISO 19117 is consisted of symbol specification, symbol assignment, portrayal services, cartographic finishing rules and implementation specification. The portrayal standard specifies a conceptual framework which includes classes, attributes, associations and operations and is the base of implementation and sharing of the geographic information portrayal. The portrayal standard associates geographic features with symbols. This paper starts up with the quantitative methodology for specifying visual variables. Consequently, visual variable values of geographic information portrayal are taken to be statistically analyzed on shape, size and color. Furthermore, a set of quantitative rules of visual variables within the geographic information portrayal system are retrieved. Meanwhile, a visual variable model for portrayal is founded in this paper. At last, the standard definition sharing of the portrayal is implemented with XML, which will become model base of geographic information portrayal and visual analyses for earth observation data.

Paper Details

Date Published: 29 December 2008
PDF: 10 pages
Proc. SPIE 7285, International Conference on Earth Observation Data Processing and Analysis (ICEODPA), 728526 (29 December 2008); doi: 10.1117/12.815404
Show Author Affiliations
Yang Mei, National Geomatics Ctr. of China (China)
Lin Li, Wuhan Univ. (China)
Haihong Zhu, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 7285:
International Conference on Earth Observation Data Processing and Analysis (ICEODPA)
Deren Li; Jianya Gong; Huayi Wu, Editor(s)

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