基于参考面的快速计算可视域算法

An Algorithm for Computing Viewsheds based on Reference Planes

与传统基于视线的可视域算法相比 ,利用参考面快速计算可视域算法不需进行DEM内插 ,无冗余计算 ,计算时间与视点位置和可视域面积无关 。

Compared with traditional sightline based algorithms,the algorithm for computing viewsheds based on reference planes has no use for DEM interpllations,without redundance calculations.The time for computing a viewshed has nothing to do with the location of the viewpiont and the area of viewshed,and it is slightly infuenced by the area of DEMS.