利用最大仰角插值技术的通视性分析算法研究  

Visibility Analysis Using Running Maximum Elevation Angle Interpolation

作　　者：刘旭红[1] 刘玉树[1] 张国英[1] 

机构地区：[1]北京理工大学计算机科学与工程系,北京100081

出　　处：《计算机辅助设计与图形学学报》2005年第5期971-975,共5页Journal of Computer-Aided Design & Computer Graphics

摘　　要：针对点对区域的通视性分析问题,提出了一种算法该算法只需对前沿边界点进行点对点通视性分析;而对内部点的可视性,根据地形空间连续性的原理,采用插值技术,利用前方点的最大仰角和可视性信息来判断 实验表明,该算法基本满足实时性的要求。A new algorithm for point to region visibility analysis is proposed. Only the visibility of points located on the front boundary needs to be analyzed by point to point visibility analysis. As to the interior points, according to the space continuum, their visibility can be judged by the frontal points using running maximum elevation angle interpolation. Experimental results demonstrate this algorithm meets the requirement of real-time and has high stability and high accuracy.

关 键 词：通视性分析 数字地形 军事地形学 最大仰角 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]