摘要
GIS时空数据模型是描述空间实体的时间特性和空间特性的有机体,是GIS存储、再现、分析动态的现实世界的基础。该文采用面向对象的思想将地理实体抽象为空间对象,对空间对象的空间几何信息、属性信息、时间信息进行封装,提出了基于对象的GIS时空数据模型的构建方法。重点探讨了基于对象的地理实体描述方法、空间对象的时态特征和时态数据的存储方法,为时空信息的有机集成、共享管理、决策分析与应用提供了关于时空数据组织与管理模式的新思路。
GIS spatio-temporal data model is the organism which is used to describe the temporal and the spatial characteristics of spatial entities. It is also the foundation for GIS storage, reproduction, analysis of the dynamic real-world. The study presents the building process of GIS spatio-temporal data model based on object by adopting the object-oriented principle that geo-entities were abstracted as spatial objects whose geometric iniormation,property information and temporal information were encapsulated. Focusing on the exploration of the description method of geo-entities based on object, temporal characteristics of spatial objects and storage method of temporal data, the study provides a new perspective of spatio-temporal data organization and management for the organic integration of spatial-temporal information, sharing management,decision analysis and application.
出处
《地理与地理信息科学》
CSSCI
CSCD
北大核心
2010年第6期11-14,共4页
Geography and Geo-Information Science
基金
广西科学研究与技术开发计划项目(桂科能0992030-1
10100018-2)
广西高校优秀人才资助计划(桂教人[2009]62号)
关键词
GIS
面向对象
时空
数据模型
GIS
object-oriented
spatio-temporal
data model
作者简介
李景文（1971-），男，博士，教授，从事GIS理论和应用方面的研究。E--mail：lijw2008@glite．edu．cn
