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一种基于四叉树的TIN的LOD算法 被引量:1

LOD algorithm based on quadtree for TIN
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摘要 通过在不规则采样点集上构建一个四叉树结构,并联合基于四叉树的LOD算法和基于TIN的三角网简化算法,提出并实现了一种TIN的LOD算法。意在把适用于格网数据的高效方法应用于不规则采样点集,得到地形的一个高效的多分辨率表达。 Through building a quadtree structure on irregular point data, and combining the quadtree based Level-of- Detail (LOD) methods and the Triangulated Irregular Network (TIN) based triangle mesh simplification methods, we proposed and realized a LOD algorithm for TIN. The goal of the paper was to apply the method suitable for grid terrain data to the irregular point data, and to realize an efficient multi-resolution expression of the terrain.
作者 冯振华 齐华
出处 《计算机应用》 CSCD 北大核心 2007年第2期499-502,共4页 journal of Computer Applications
关键词 地形可视化 不规则三角网 细节层次 算法 Terrain visualization Triangulated Irregular Network (TIN) Level-of-Detail (LOD) algorithm
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