摘要： 本文描述由实测地形数据重建地形模型的方法.分析由随机点分布的数据拟合规则格网数据的局部曲面拟合算法,在保证整个曲面连续光滑的情况下使误差达到最小.并在地表实现地物造型、纹理、植被及道路、桥梁的显示.

关键词: 地形数据, 地形格网模型, 曲面拟合, 地物造型, 光照模型, 纹理

Abstract: This paper describes the method of rebuilding the terrain model by terrain data measured , and ana-lyses the local curved surface interpolation algorithm to interpolate the regular network data, randomly distrib-uted.Error is minimized on condition that the surface is continuous and smooth.Thc display of modeling objects, texture, plants, roads and bridges on the terrain surface is effected.