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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。
The complexity of the railway network topological structure, along various maintenance points and equipment changes more difficult to describe. Using the geometric network in Geodatabase data model to describe the topology of railway network, GIS and railway network topology can be unified, and the powerful topological analysis function of geometric network can be fully used to improve the search efficiency. In this paper, a method of topology analysis of railway network based on geometric network is proposed, and the method of describing the railway network by using geometric network is elaborated.