The general methods of terrain simplification with LOD is summarized briefly in this paper. An algorithm of LOD automatically generation through sparsely resampling technique is presented.
文章简要总结了LOD进行地形简化的一般方法，介绍了一种通过稀疏采样技术实现LOD自动生成的算法。
Generation of triangular meshes for digital terrain model is studied, the triangulation algorithm of discrete points and edges and its data structure are presented.
对构筑三角形网格建立数字地形模型进行了研究，给出了基于散乱点和边建立三角形网格地形模型的生成算法和数据结构。
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