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.
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.
出处
《计算机工程》
CAS
CSCD
北大核心
1993年第1期61-66,共6页
Computer Engineering
关键词
地形数据
地形格网模型
曲面拟合
terrain data / terrain network model / curved surface interpolation / objects modeling / illumina-tion model / texture
