用c#开发的基础gis库源代码，在gis开源业内名气很大，请大家享用！-with the development of the gis the source code, industry revenue in gis great reputation, please enjoy!

针对开源sharpmap,而修改后，使sharpmap包装成opengl,从而可以实现高速绘图-For open-source sharpmap, and modified so that packaging sharpmap into opengl, so that we can achieve high-speed graphics

开源导航系统最新版,sharpmap完整示例程序,已调试通过,可以正常使用,-The latest version of open source navigation system, sharpmap integrity of the sample programs have been debug through, you can use