摘要
讨论了地形模型的多分辨率表示机制、节点评价函数、动态简化算法、裂缝的解决方法、三角网快速构建等地形可视化中的关键问题。实验结果表明,本文提出的算法实时、高效,可以满足大规模地形可视化要求。
This paper presents an algorithm for regular square grid model, which based appropriate criterion and quad-tree structure, the multi-resolution representation mechanism, the dynamic terrain simplification, error metrics, deleting cracks, fast generation the triangulation are discussed in the paper. Experimental result show the efficiency of this algorithm is high and the algorithm supports real-time visualization of large-scale terrain.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2005年第5期392-395,共4页
Geomatics and Information Science of Wuhan University
关键词
地形可视化
四叉树
规则格网模型
层次结构
terrain visualization
quad-tree
regular square grid
level of detail
