OPEN-GL应用,三维地图演示系统，包含OPEN GL功能,GIS演示。-Open-GL Application, a 3-D map demo system. Includes the openGL , GIS demo.

对于GIS的同学来说，很多人都学过opengl，现在上传一个自己做的东西，希望有用-For the GIS students, many people have learned opengl, now upload a thing myself, hope that useful