期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2002
卷号：XXXIV Part 4
出版社：Copernicus Publications
摘要：3D GISs were developed simultaneously in the late 1980s in a number of different disciplines. The development of these 3D GISs can not yet meet all needs for new representations and analytical tools in 3D environments. In this paper, the data structures, especially solid-based data representations are introduced. Then, a typical object-oriented data model is put forth to show a new data model. And at last, two data access methods are proposed to make the data model clear
关键词：3D GIS; Object-Oriented; Spatial Data Model; Data Structure
