viewshed map视野图
Create Viewshed Layer空间视线分析
3D viewshed analysis三维可视域分析
For viewshed analysis based on DEM database, the algorithm having a good experimental effect reduces obviously the frequency of access to database with lower time complexity.
对基于DEM数据库的可视域分析,该算法在时间复杂度较低的情况下大大减少了访问数据库的次数,取得了很好的效果。
参考来源 - 基于DEM的数字地形分析