摘要
铁路网拓扑结构复杂,沿线各种维护点和设备变更较多,不易描述。利用Geodatabase数据模型中的几何网络对铁路网拓扑结构进行描述,可以将GIS与铁路网拓扑统一起来,又可以充分利用几何网络强大的拓扑分析功能,提高搜索的效率。文中提出一种基于几何网络的铁路网拓扑分析方法,详细阐述利用几何网络描述铁路网的方法。
It was complex to the rail-net topology frame for having lots of service points and facilities that was difficult to describe.But it could be described in geometry network way of Geodatabase data model,because this method could unify GIS and the rails-net topology,meanwhile enhance the searching efficiency by using the great topology analysis function of geometry network.This article put forward a topology analysis method based on geometry network and expatiated the method to describe the rails-net by using geometry network.
出处
《铁路计算机应用》
2010年第5期45-47,共3页
Railway Computer Application
关键词
数据模型
几何网络
拓扑分析
铁路网
data model
geometry network
topology analysis
rails-net
