空间实体的拓扑构建

周顺平; 李华; 杜小平

空间实体的拓扑构建

中国地质大学信息工程学院湖北武汉 430074

基金项目:

国家“863”项目: 面向网络海量空间信息的大型GIS 2003AA133010

详细信息

作者简介:
周顺平(1967-),男,教授,博士生导师,主要从事GIS基础软件和数据库方面的科研及应用开发工作.E-mail: Zhousping@si na.com

中图分类号: P208;TP311
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- 被引次数: 0
出版历程
- 收稿日期: 2006-05-30
- 刊出日期: 2006-09-25

Building the Topology of Spatial Entities

Faculty of Informati on Engineering ,China University of Geosciences ,Wuhan 430074,China

摘要

摘要: 空间实体的拓扑关系是地理信息系统进行空间分析、决策支持的基础.拓扑关系的关键点在于拓扑结构的构建.首先介绍了点集拓扑理论, 归纳了有实际应用价值的各种拓扑关系, 分析了拓扑模型中的最基本拓扑元素和空间实体的关系; 然后提出了一种要素类的拓扑构建方法, 其算法以MAPGIS7.0空间实体的结构为依据, 主要体现要素分裂的思想.实践证明, 这些方法能够有效的构建空间实体的拓扑关系.
- 逻辑拓扑结构 /
- 拓扑构建 /
- 分裂 /
- 拓扑元素
Abstract: The topology relationship of spatial entities is the basis of GIS applications in spatial analysis and decision support. The crucial point of topology relationships is the building of topological structure. This paper firstly introduces the point set of topology theory, enumerating all kinds of topology relations which have practical application value. The relationship between a base topology element and spatial entity in the topology model is also analyzed.Then a topology building method is put forward, using feature classes. The algorithms accompany with the spatial entity model of MAPGIS7.0. These algorithms mainly present the idea of feature splitting. These methods are proved effective for building topological relationships of spatial entities in practice.
- logical topological structure /
- topology building /
- split /
- topology element

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图 1 拓扑结构逻辑模型

Fig. 1. Logical model of topological structure

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图 2 点-线分裂过程

Fig. 2. Process of point-line split

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图 3 线-线相交关系

Fig. 3. Line-line crossing relationship

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图 4 交点处理

Fig. 4. Cross processing

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图 5 多边形构建分解

Fig. 5. Decomposing of polygon construction

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参考文献(14)

[1]	Egenhofer, M. J., Franzosa, R. D., 1991. Point-set topological spatial relations int. . Journal of GIS, 5 (2): 161-176.
[2]	Erik, H., Sudhakar, M., Scott, M., 2003. Building a robust relational-implementation of topology. Computer Science, Santorini Island, Greece.
[3]	Guo, R. Z., 2001. Spatial analyse. Higher Education Press, Beijing. 229 (in Chinese).
[4]	Han, P., Xu, Z. H., Zhu, H. F., 2005. The method of Arcobjects-The exploration of geographic in for mation system. Wuhan University Press, Wuhan. 216 (in Chinese).
[5]	Li, B., Wang, Q. S., 2003. Key technique anatomy of spatial database engine. Journal of Institute of Surveying and Mapping, 20 (1): 35-38 (in Chinese with English abstract).
[6]	Sun, Y. G., 1993. The description of topology spatial rela tionship and two DT-string spatial relationship expression[Dissertation]. Wuhan Technical University of Surveying and Mapping, Wuhan (inChinese).
[7]	Wu, X. C., 2002. The theory and technique of geographic information system. Electronics Industry Press, Beijing (in Chinese).
[8]	Zondy Cyber Corporation, 2004. MAPGIS7.0 detail design document of featureclass. Zondy Cyber Corporation, Wuhan (inChinese).
[9]	郭仁忠, 2001. 空间分析. 北京: 高等教育出版社. 229.
[10]	韩鹏, 徐占华, 褚海峰, 2005. 地理信息系统开发-Arcobjects方法. 武汉: 武汉大学出版社. 216.
[11]	李滨, 王青山, 2003. 空间数据库引擎关键技术剖析. 测绘学院学报, 20 (1): 35-38. https://www.cnki.com.cn/Article/CJFDTOTAL-JFJC200301011.htm
[12]	孙玉国, 1993. 拓扑空间关系描述与2DT-String空间关系表达[学位论文]. 武汉: 武汉测绘科技大学.
[13]	吴信才, 2002. 地理信息系统原理与方法. 北京: 电子工业出版社. 30.
[14]	中地数码有限公司, 2004. MAPGIS7.0要素类详细设计文档. 武汉: 中地数码有限公司.