基于Voronoi图的人口普查区的划分技术研究

Technique studies on partition of census areas based on Voronoi diagrams

人口普查区的划分是进行人口普查的先期工作。本文探讨了利用Voronoi图的良好空间拓扑属性进行人口普查区划分的方法。文章从多边形数据出发,利用间接法实现Voronoi图的生成,然后根据普查区划分的人口阀值,通过相邻Voronoi图之间的操作,最终实现人口普查区的划分。可为人口普查提供有效的服务,并间接地为人口空间化提供了一种有效的表现形式。

Partition of census areas is the preparative task of census. With the good attributes of topology, this paper probes into the method for partition census areas. In this paper, begining with polygonal data, the author gets the Voronoi diagrams using the indi- rect method, and realizes partition of census areas based on threshold of census area and the operation between conterminous Voronoi diagrams. The census areas can provide service for census, and an effective exhibition of spatial distribution of Population.