基于对象数据模型的高速公路GIS-T系统的研究与实现  

Study and implementation of geographic information system for transportation of express highway based on object-data-model

作　　者：查新建[1] 何钦铭[1] 陈奇[1] 张子健[1] 

机构地区：[1]浙江大学计算机学院人工智能所,浙江杭州310027

出　　处：《计算机工程与设计》2006年第19期3670-3673,共4页Computer Engineering and Design

摘　　要：针对传统GIS系统无法表达高速公路管理中对象之间的复杂关系这一问题,对GIS数据模型进行了研究,建立了基于符合OpenGIS抽象规范的几何数据模型的高速公路地理对象数据模型,实现基于对象数据模型的高速公路GIS-T系统来增强传统GIS系统的数据表达能力。能力提高后的系统,在高速公路管理者来看完全符合高速公路管理规范的,在二次开发用户或再次扩展系统功能程序员来看完全采用面向对象的,在面对地图操作的用户来看几乎表现真实世界的地理实体和逻辑对象的。Conventional GIS system can＇t express the complicated relations between objects. In order to solve this problem, the GIS data model is studied, then a geographic object data model is given in express highway based on the OpenGIS geometry data model, and at last the express-highway- GIS-T-system based on the object data model is implemented to enhance the capability of data representation in conventional GIS system. After that, a further extended GIS_T system is presented to users： Highway mangers who view that the system is according to the management criterion in the express highway, developers who view that the system is complete object-oriented, map operators who view that the system represents the real world.

关 键 词：交通地理信息系统 对象数据模型 面向对象数据库 地理对象服务器 特征类 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]