|
|||||
|
|
| 一种基于TIN模型的LOD简化算法 | |
| 引用本文： | 解志刚,罗伊萍,辛宪会.一种基于TIN模型的LOD简化算法[J].海洋测绘,2005,25(5):18-20. |
| 作者姓名： | 解志刚 罗伊萍 辛宪会 |
| 作者单位： | 1. 75719部队,湖北,武汉,430074 2. 解放军信息工程大学,测绘学院,河南,郑州,450052 3. 海军海洋测绘研究所,天津,300061 |
| 摘 要： | 为了实现不规则三角网（TIN）地形模型的动态模型的动态细节简化模型,本文提出了一种有效的方法,即在TIN的凸壳构网算法和累进格网算法的基础上,设计一种混合型数据结构,提出边折叠的限制条件,解决了边折叠时易产生的边自交现象,实现了TIN模型的LOD快速简化。 |
| 关 键 词： | 不规则三角网（TIN） 细节层次（LOD） 边折叠 |
| 文章编号： | 1671-3044（2005）05-0018-03 |
| 收稿时间： | 2005-08-06 |
| 修稿时间： | 2005年8月6日 |
A LOD Algorithm for Simplifying TIN Model |
|
| XIE Zhi-gang,LUO Yi-ping,XIN Xian-hui.A LOD Algorithm for Simplifying TIN Model[J].Hydrographic Surveying and Charting,2005,25(5):18-20. | |
| Authors: | XIE Zhi-gang LUO Yi-ping XIN Xian-hui |
| Institution: | 1. Troops 75719 ,Wuhan, Hubei,430074 ; 2. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou, Henan,450052 ; 3. Naval Institute of Hydrographic Surveying and Charting, Tianjin ,300061 |
| Abstract: | To simplifying TIN model and displaying the model on time,an LOD algorithm based on convex hull TIN building method and the repeating edge collaPSe transformation in "progressive meshing" is discussed in the paper.It describes a new hybrid data structure,and puts forward limited conditions.The result is proved to be good for the phenomena of edge collaPSe disappear when simplifying triangulation,and after constructing dynamic LOD modal the real-time displaying of TIN model is realized. |
| Keywords: | TIN LOD edge collapse |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |