| 三维空间数据模型综述 |
| |
| 引用本文： | 吴德华,毛先成,刘雨.三维空间数据模型综述[J].测绘工程,2005,14(3):70-73,78. |
| |
| 作者姓名： | 吴德华 毛先成 刘雨 |
| |
| 作者单位： | 中南大学,地学与环境工程学院,湖南,长沙,410083;中南大学,地学与环境工程学院,湖南,长沙,410083;中南大学,地学与环境工程学院,湖南,长沙,410083 |
| |
| 摘 要： | 介绍了三维地理信息系统空间数据模型的基本概念和研究现状.讨论了三维地理信息系统中两类不同的空间数据模型,即基于表面表示的数据模型和基于体表示的数据模型.分析了格网结构、边界表示、3D栅格结构、八叉树、结构实体几何法和不规则四面体结构等空间数据模型的特点和应用.
|
| 关 键 词： | 三维 空间数据模型 地理信息系统 |
| 文章编号： | 1006-7949（2005）03-0070-04 |
| 收稿时间： | 2005-03-20 |
| 修稿时间： | 2005-03-20 |
The summary of 3D Spatial Data Models |
| |
| WU De-hua,MAO Xian-cheng,LIU Yu.The summary of 3D Spatial Data Models[J].Engineering of Surveying and Mapping,2005,14(3):70-73,78. |
| |
| Authors: | WU De-hua MAO Xian-cheng LIU Yu |
| |
| Institution: | School of Geology and Environment Engineering, Central South University, Changsha 410083, China |
| |
| Abstract: | It analyzes the basic concept and current research situation of the three- dimensional geo-graphic information system (GIS) spatial datamodelsand discussestwo different spatial data modelsin the three-dimensional GIS. One isbased on surface representation and the other isbased on solid represen- tation. Furthermore, it analyzes the features and application of spatial data models, including grid con-struction (grids), boundary representation (BR), 3D array construction (arrays), Octree, constructive sol-id geometry (CSG) and irregular tetrahedron network. |
| |
| Keywords: | three-dimensional spatial data model geographic information system |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
