基于Delaunay三角网的广西城镇网络空洞研究

描述了中心地系统形成原理，并将其与Voronoi图生成过程进行对比分析，论证了Voronoi图的生成与中心地的形成过程的一致性，提出了用Voronoi图描述中心地系统，进一步提出Delaunay三角网是建立城镇网络体系的最佳模型。以广西为例，建立广西地级市城市网络，计算出城市配位数和地级市平均距离，由此分析出城市网络中存在的“空洞”现象，并找出位于空洞点位上的潜在新兴城镇，为城镇网络的分析与决策提供依据。

The Research of Guangxi Cities Network Holes Based on Delaunay Triangulation Network

This paper describes the forming principle of the center place system, compared it with the Voronoi dia- gram, puts forward to describe the center place system by Voronoi diagram, and puts forward further Delaunay triangula- tion network is the best model to build cities network system. A Case Study of Guangxi, establishes Guangxi prefecture- level cities network. On the basis of the calculating of the city coordination number and the average distance of prefecture -level cities, discovers that the ＂hole＂ phenomenon presents in the cities network, and finds out potential emerging towns which locates in the ＂hole＂ to provide the basis for cities network analysis and decision-making.