文章基本信息

标题：A Multi-scale GIS Database Model Based on Petri Net
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作者：Zhangcai YIN
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2005
卷号：XXXVI-4/W6
页码：271-276
出版社：Copernicus Publications
摘要：In cartographic generalization, cartographic entities would change with scale. State and event are two basic elements to describe these changes. However, current hierarchical multi-scale representation models put more emphasis on the representation of state, rather than on the event that causes the state to change. In this paper, elementary concepts such as scale reference system, scale event are firstly discussed, and then a Petri-net-based multi-scale representation model is proposed, in which place, transition, and arc of a Petri net are used for describing state, event of and relations between cartographic entities. Finally, by making some experiment benefits of this model are analyzed in great detail
关键词：Petri Net; Scale; Cartographic generalization