摘要
数据模型是地理信息系统(GIS)的核心。目前,人们提出了许多GIS数据模型,出现很多容易混淆的概念。本文对地理信息系统领域数据模型的基本概念和理论进行梳理、归纳与总结,并对数据模型及一些相关概念进行了比较和分析。对数据建模的概念进行了讨论,分析了其包含的3种含义。对数据模型的3个抽象层次进行了说明和分析,按照不同的划分规则对地理信息系统数据模型进行了分类,并对空间数据模型进行了分析。
Data model is a core of GIS. Currently, many GIS data models have been developed, and there are many confusion concepts. This paper explicitly generalizes and summarizes theoretical basis on the realm of GIS model, and compares and analyzes some conceptual problems or concepts. This paper discusses concept of data modeling and analysis its meanings. This paper introduces and analyzes the three hierarchies of GIS data model and meanings of data modeling and several spatial data models, and classes GIS data model according as different rule of division.
作者
张山山
ZHANG Shanshan(School of Geosciences and Info-Physics,Central South University,Changsha 410083,China;Key Laboratory of MetaUoorganic Prediction of Nonferrous Metals,Ministry of Education,Central South University,Changsha 410083,China)
出处
《测绘与空间地理信息》
2018年第9期8-11,15,共5页
Geomatics & Spatial Information Technology
