空间数据问题与GIS发展的思考  

Some Problems of Space Data and Puzzle Doms in GIS

作　　者：胡鹏[1] 李圣权[1] 亢江妹[1] 

机构地区：[1]武汉大学资源与环境科学学院

出　　处：《武汉大学学报（信息科学版）》2005年第9期796-800,共5页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目(40471107);国家863计划资助项目(2002AA616080)。

摘　　要：讨论了GIS空间数据的几个理论问题:空间数据概念的完整性,空间数据量,面向多维空间、动态分析的空间数据结构,以及GIS空间数据的初始化和空间尺度等;深入探讨GIS在解决这些问题时所面临的困惑,并在分析了GIS所需的空间数据基础上定义了位、邻、近、势4类空间关系数据,由此探讨了地图代数作为一种解决思路的可行性及其若干特点。In this paper, we discussed deeply the bepuzzlements which are faced with when GIS resolve these problems. Based on the analysis of necessarily spatial data of GIS, four types of spatial relation data＇were defined： location, adjacency, nearness and influence. Between each type of data and its next one, the latter has more quantity of data than the former. It will be a very difficult work, and is the source of data problems such as “not prepared when needed” and “prepared but never used”, to organize all these data comprehensively and apparently. From all above, as an idea of resolving these problems, the feasibility and features of Map Algebra were discussed.

关 键 词：空间数据 空间尺度 “0”初始化 地图代数 

分 类 号：P208[天文地球—地图制图学与地理信息工程]