Three-Dimensional Showing of Terrain Based on the OpenGL and Relief Map

This paper selects Jingcang Forestry Center of Wangqing forest department in Jilin province as research region, Under the support of the soft Arc/Info , R2V, DEM was created based on the abundant altitude information of the relief map, then utilize these data, Three-Dimensional showing of forestry center was built under the help of Visual C++ and OpenGL, and can be rotated and scaled with interactive manner.