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.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2005年第5期971-975,共5页
Journal of Computer-Aided Design & Computer Graphics
关键词
通视性分析
数字地形
军事地形学
最大仰角
visibility analysis
digital terrain model
military terrain analysis
running maximum elevation angle
