Study of Urban Influenced Regions of Henan Province Based on Weighed Voronoi Diagram
选取社会、经济和人口相关因素，通过主成分分析和断裂点理论计算河南省38个城市单元的综合规模强度，并利用加权Voronoi图划分城市影响区。
By choosing factors which are relative to society,economy and population to compute urban influenced regions,using principal component analysis and combining with breaking point theory,the integrated scale intensity of 38 urban units in Henan province are obtained. Based on that,using weighed Voronoi diagram calculate the integrated scale intensity of the 38 urban units.