基于Delaunay三角网的Shapefile几何纠正算法与实现

• 地球探测与信息技术 • Previous Articles

The Algorithm and Realization of Shapefile Geometry Transformation Based on Delaunay Triangulation

BU Kun^1,2, ZHANG Shu-wen¹, YANG Jiu-chun^1,2, ZHANG Yu-bo³

1.Northeast Institute of Geography and Agroecology, CAS, Changchun 130012, China;2.Graduate University, Chinese Academy of Sciences, Beijing 100049, China;3.Software College, Jilin University, Changchun 130012, China

Received:2007-09-03 Revised:1900-01-01 Online:2008-05-26 Published:2008-05-26
Contact: BU Kun

Abstract

Abstract: Most commercial GIS software only offer the simple algorithm of global sense to transform the vector data. In this study, an algorithm for vector geometry transformation with local significance is proposed based on Delaunay triangulation algorithm. The algorithm is implemented on Visual Studio 2005 platform with C# 2.0 and C++, and can be used to perform the vector geometry transformation with Shapefile. The achievement is successfully used to solue the problem of spatial data integration in the project of land use database update of North East of China in 2005.

Key words: GIS, Shapefile, vector geometry transformation, Delaunay triangulation, spatial data integration

CLC Number:

P413.2

BU Kun, ZHANG Shu-wen, YANG Jiu-chun, ZHANG Yu-bo. The Algorithm and Realization of Shapefile Geometry Transformation Based on Delaunay Triangulation[J].J4, 2008, 38(3): 521-0526.

References

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