用C语言写的近三十个几何处理函数，包括求教，判断包含等，实现GIS空间分析功能时可以参考-C language written in the past 30 geometric handling functions, including pay him, the judge included. GIS spatial analysis functions can reference

利用Vistual Studio2003写的GIS程序，基于MapObject2.3，内付数据。-Vistual Studio2003 written using GIS procedures, based on MapObject2.3, within the pay data.

基于C#.NET的ArcGIS Engine 开发，付有大量源代码数据。对xmd格式文件进行操作，之后最短路径分析。(Based on ArcGIS Engine development of C#.NET, pay a large number of source data)