基于XML的三层地理信息数据模型  

Three-leveled GIS data model based on XML

作　　者：潘雨青[1] 陈天滋[1] 

机构地区：[1]江苏大学计算机学院,江苏镇江212013

出　　处：《计算机工程与应用》2007年第25期240-243,共4页Computer Engineering and Applications

基　　金：信息产业部项目(No.2003xk320014)。

摘　　要：作者根据面向对象的理论,参照国际技术规范,提出了几何对象模型、地理对象模型、图形对象模型构成的三层数据模型。并利用GML提供的几何模式、特征模式对地理对象模型和几何对象模型进行了描述,采用SVG作为几何图形显示模型的描述。The paper takes advantage of OO theory,refers to international data model specification,and presents the tri-model theory including Spatial Object Model,Geometry Object Model and Geometry Graph Object Model.The mentioned theory is on the base of GML specification.The method which making use of geometry schema and feature schema offered by GML,for describing Spatial Object Model and Geometry Model has been explained,together with another method which takes SVG as Geometry Graph Object model.

关 键 词：GIS XML GML 数据模型 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]