基于MapX的重力模型方法计算结果可视化研究

Region gravitation calculation by gravity model approach and visualization based on MapX

重力模型是用于研究区域间依存关系的空间相互作用模型.为实现通用GIS平台与重力模型分析方法的集成,基于一般重力模型方法和河南省统计年鉴数据计算了中原城市群城市引力矩阵数据,利用可编程GIS地图控件MapX和VC++6.0开发工具实现了中原城市群城市引力矩阵可视化,揭示了中原城市群城市间相互作用信息的空间结构和等级,实现了重力模型数据与相关区域地理空间数据的可视化结合.

Gravity model is a model to study the multi-Regional spatial interaction.In order to integrate gravity model with common GIS platforms which have capability of geographical spatial computation,city gravitation matrix among the cities group in the central plain using statistical yearbook of Henan province is calculated,based on the general gravity model.And visualization of the city gravitation matrix by using a programmable GIS mapping control MapX and VC ＋ ＋ 6.0 development tool is presented in detail.The structure and order of city interaction intensity among the cities group in the central plain is brought out.The integration region gravity model data and other geographical spatial data are realized.