Object-oriented Spatio-temporal Data Model Based on Dynamic Segmentation in GIS-T
Xiong Sheng-wu · Modern Electronics Technique · 2009
The expression of transport network is very important in GIS-T.Not only the traffic facilities management and road traffic information management need a good data structure,moreover developing traditional GIS data construction is needed in transport planning and network planning.Data is a base of GIS,and data model is used to express the relation between the data and the forms of logic organizations.Because of a great variety of transportation information of their own characteristics,the data need to be organized by a logical form.It has a great significance of studying the data model of GIS-T.This article discusses a object-oriented spatio-temporal data model based on dynamic segmentation.