ArcGIS二次开发的时候，空间分析使用工具箱，操作不方便，进度也不容易控制，该代码从几何要素的力度开始包装，操作方便(ArcGIS two development, space analysis toolbox, the operation is not convenient, progress is not easy to control, the code from the geometry of the strength of the beginning of packaging, easy to operate)