Delaunay三角网在图斑与点群目标综合中的应用

土地资源调查利用的土地类型数据多为不同比例尺电子矢量地图,以此数据为研究基础,详细介绍了Delaunay三角网及其Voronoi多边形的特性,以及在土地数据类型中的图斑综合与点群目标综合中的算法应用,具体描述了两种算法的实现过程和试验结果,并对几种点群目标算法进行了简要分析和比对,详细介绍了实现过程;重点阐述了图斑综合算法的思想和算法的具体实现。最后以"土地利用数据库智能化自动综合系统"为例验证了算法方案的合理性和可行性。

Delaunay Triangulation Applying in the Polygons Generalization and Punctate Objects Generalization

The data of land source researched are diatinct scale vector maps.Based on the land-use data,the paper discusses the arithmetic applied and realized of Delaunay triangle networks applying in polygons generalization and punctate objects generalization of land data type, describes the realized progress and the exprerimentation result of the two arithmetics.The paper also analyzes and compares the several arithmetics of applying in punctate objects and introduces the realized progress.Compared the polygons generalization,the paper emphasizes the general thinking and the realying.In the end,the paper validates the feasibility with the example of the system of the intellectualizing and automatism synthesis of the land use data base.