摘要： 针对时空数据模型与时态地理信息系统研究中存在的几类问题,提出了一种通用的面向对象时空数据模型GOO-STDM。该模型从时空对象的基本属性和行为出发,运用面向对象方法,将地学对象封装为空间、专题、时间的整体,满足地学对象的what/where/when语义,具有良好的扩展性。在GOO-STDM基础上,利用Geodatabase模型,采用定制ArcGIS的方法,实现了支持双时态语义的原型TGIS系统,既能满足时空表达的需要,又继承了ArcGIS系统的功能。
关键词:
时态地理信息系统,
时空数据模型,
时空数据库,
Geodatabase
Abstract: Aiming at the problems that exist in the study of spatial temporal data modeling and temporal geographic information system(GIS),a general object-oriented spatio-temporal data model(GOO-STDM) is proposed.On the basis of the essential attributes and behavior of geo-objects,the model makes use of object-oriented approach to encapsulate a geo-object as a whole of space,theme and time,which encompasses semantics of what/where/when and,presents better extensible to different applications.Based on GOO-STDM and Geodatabase,a prototype temporal GIS(TGIS) with bi-temporal characteristics is developed.With customized ArcGIS,the prototype temporal GIS both supports requirements of spatio-temporal representation and inherits the functions of ArcGIS.
中图分类号:
姜晓轶;周云轩;蒋雪中;. 基于Geodatabase的面向对象时空数据模型[J]. , 2005, 31(24): 37-39.
JIANG Xiaoyi1,ZHOU Yunxuan1,2,JIANG Xuezhong1. Object-oriented Spatio-temporal Data Model Based on Geodatabase[J]. , 2005, 31(24): 37-39.