摘要
本文对三维空间数据模型的研究与发展进行了总结，分析了三维空间数据的特点以及数据模型集成的必要性。结合三维ＧＩＳ在城市、地质、海洋等领域的具体应用，提出三种三维空间数据模型集成：用于城市三维构模基于ＴＩＮ和ＣＳＧ的集成模型；用于地质，海洋等领域的基于八叉树和四面体格网的混合模型；具有一般性的矢量栅格集成的三维空间数据模型。
In this paper, after a summary of 3D spatial data model, the characteristics of 3D spatial data and the necessary of model integration are analyzed. Three spatial data models are presented for 3D application in fields such as urban, geology, marine, etc. They are the integrated model based on TIN and CSG (Construction Solid Geometry),which is used in 3D urban modeling; The hybrid data model based on Octree and TEN(Tetrahedral Network),which is used in geology, marine, etc; And, the general 3D spatial data model based on vector and raster integration.
出处
《测绘学报》
EI
CSCD
北大核心
1998年第4期325-330,共6页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金
