地理信息系统mapgis二次开发 本示例是利用“文档/视”的结构继承CGisEditView基本视类，开发针对单文件(点/线/区)编辑操作的VC应用程序 其中还详细地讲解了用“交互性扩展工具”实现自己的操作。-Geographic Information System mapgis the secondary development of this example is to use " document/as" the basic structure of in

看了WTK下的CityGuide，自己的实现了它的功能，另外增添了地图放大功能，代码更加简单-WTK looked under CityGuide, the realization of its own functions, with the addition of map zoom function, the code easier