时态GIS理论及其数据模型初探  

A Preliminary Probe into Temporal GIS and Its Data Model

作　　者：刘刚[1] 周炳俊[1] 安铭刚[1] 杨国辉[1] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052

出　　处：《北京测绘》2007年第4期16-20,共5页Beijing Surveying and Mapping

摘　　要：时态GIS(Geography Information System)是GIS中的一个新兴的研究领域。传统的GIS记录的只是这个不断变化的世界的某一时刻的影像,这类GIS亦称为静态GIS。如果在GIS中引入时间这个与空间同等重要的因素,或者说是在三维GIS的基础上,增加时间维或者时间变量,就形成了时态GIS。目前对于时空关系模型的研究就是当前时态GIS研究的重点之一。时态GIS数据模型的实现方法主要有两种:一是扩展传统的关系模型,二是采用面向对象的方法。当前时态GIS的研究取得了一些进展,但仍有许多不足之处。本文将结合实际,对未来完善时态GIS模型及系统建设提出一些需求方面的意见和想法。Temporal GIS is a new pan in GIS research field. Traditional GIS records instant lata the developing world and it is called the static GIS. If time equal to space is introduced to traditional GIS, in other words, a time dimension or a lime variable is added in three dimensional GIS, the lemporal GIS（TGIS） is formed. The researches of the space-lime relation model ix one of the key point of the TGIS new and there are two main methods to acquire the TGIS, one is to extend the traditional relation model, and the other is to use the object oriented methods. TGIS data models and techniques research have been developed to some extent, but there are still much insufficiencies. Then some ideas and suggestions about requirements are put forward in order to improve the future TGIS models at the end.

关 键 词：时态GIS 时间维 时空关系模型 面向对象 数据组 

分 类 号：P208[天文地球—地图制图学与地理信息工程]