MAPX编写的对地图的操作，可以对图层进行排序，并且可以清除图层，是一个方便的mapx小工具-MAPX prepared to operate on the map, you can sort of layers and layers can be clear, is a convenient gadget MapX

gdal是栅格和矢量地图处理的开源库，压缩包内是编译好的1.6.0版的dll，用于c#开发-gdal raster and vector maps are dealing with open-source libraries, compression packages are compiled 1.6.0 version of the dll, for c# developers