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基于Geodatabase的面向对象时空数据模型
引用本文:姜晓轶,周云轩,蒋雪中.基于Geodatabase的面向对象时空数据模型[J].计算机工程,2005,31(24):27-29.
作者姓名:姜晓轶  周云轩  蒋雪中
作者单位:华东师范大学河口海岸学国家重点实验室,上海,200062;华东师范大学河口海岸学国家重点实验室,上海,200062;吉林大学地球探测科学与技术学院,长春,130026
基金项目:上海市科委科技攻关项目“上海市滩涂资源可持续利用研究”(04DZ12049)
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
文章编号:1000-3428(2005)24-0027-03
收稿时间:2005-07-07
修稿时间:2005-07-07

Object-oriented Spatio-temporal Data Model Based on Geodatabase
JIANG Xiaoyi,ZHOU Yunxuan,JIANG Xuezhong.Object-oriented Spatio-temporal Data Model Based on Geodatabase[J].Computer Engineering,2005,31(24):27-29.
Authors:JIANG Xiaoyi  ZHOU Yunxuan  JIANG Xuezhong
Affiliation:1. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062; 2. College of GeoExploration Science and Technology, Jilin University, Changchun 130026
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.
Keywords:Temporal GIS  Spatio-temporal data model  Spatio-temporal database  Geodatabase
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