摘要
Delaunay三角网是表示地形的一种常用方法 ,在DEM内插中也有着广泛的应用。文中利用自适应分块技术进行Delaunay三角网的快速构建 ,实现了基于Delaunay三角网的DEM规则格网快速内插 。
Delaunay triangulated networks, as one common method of terrain description, is widely used in the field of terrain interpolation. In this paper, the self adaptive blocking method is introduced in the construction of delaunay triangulated network. Using the block information, we realize the fast terrain interpolation method based on delaunay triangulated network.As considering the features of terrain surface, this method has high efficience. The result can represent the actual terrain fairy well.
出处
《测绘学院学报》
北大核心
2001年第B09期26-28,共3页
Journal of Institute of Surveying and Mapping
关键词
三角网
数字地面模型
TIN
内插
地形
triangulate network
digital terrain model(DEM)
triangulated irregular network
interpolation
