摘要
为了实现大规模场景的多分辨率显示,利用 LOD 细节分层思想提出了一种地形 TIN模型。重点解决不同分辨率 TIN 模型间的连续过渡问题,以及分块 TIN 模型的创建问题,包括TIN 构网时的数据结构设计和算法优化。
It is presented a LOD-based algorithm of TIN model, which is quite suitable for terrain rendering in large 3D landscape. The emphasis focuses on issues of transition between TIN models with different resolutions, and generation of these models, such as how to design data structures and how to optimize algorithms when constructing a Delaunay triangulation.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2005年第3期665-669,共5页
Journal of System Simulation
基金
国家自然科学基金资助项目(40371090)
测绘学院课题资助(Y0504)
关键词
LOD
TIN
多分辨率
DELAUNAY三角网
Level of Details
Triangulated Irregular Network
multiresolution
Delaunay Triangulation
