摘要
三维可视化已成为地理信息展示表达的主要方式之一。该文针对三维模型场景集成可视化中的地物模型与地形模型难以无缝匹配的问题,研究了一种基于Delaunay三角剖分的改造融合方法,通过实验验证,能够有效实现二者的紧密匹配。同时,为提高实际作业效率,该文还提出并实现了面向大范围海量三维数据组织的层—区—块—模型的4层索引机制。
3D visualization has become one of the main ways of geographic information presenta- tion. To solve the seamless matching problem of feature model and terrain model in the visualization of 3D model scene integration, a reconstruction method based on the Delaunay triangulation was studied in the paper, and the experiments verified that this method could realize close matching effectively. At the same time, in order to improve the actual operation efficiency, the four-layer indexing mechanism for the large 3D data organization was also proposed and realized in the paper.
出处
《测绘科学》
CSCD
北大核心
2015年第8期144-146,166,共4页
Science of Surveying and Mapping
关键词
三维场景
三维模型
匹配
三角剖分
可视化
3D scene
3D model
matching
Delaunay triangulation
visualization
