Object-oriented Spatio-temporal Data Model Based on Geodatabase
Jiang Xue-zhong · Jisuanji gongcheng · 2005
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.