摘要
道路网络图形是GIS-T系统中空间信息的载体也是系统作用的核心对象。路网交通流模拟在进行路网规划方案选比时非常重要。文章首先分析了国内GIS-T系统开发的主要特点以及存在的问题,指出了路网图形自动更新功能实现的意义,然后从图形空间分析的角度,探讨了两种编辑模式下图形自动更新功能的实现思路和方法。方法不失一般性,又具有很强的可操作性和实践意义,可供相关研究和开发人员参考。
Road network maps are both the main reformation carrier and the key operational object of GIS-T systems. After having analyzed the characteristics and problems of current development of GIS-T, this paper pointed out the significance of this function. Based on the functions offered by MapX, this paper presented the methods of how to update maps in two editing modes intelligently. Methods are characteristic of universality, maneuverability, and practical significance.
作者
张亚东
孙华灿
ZHANG Ya-dong, SUN Hua-can （1.Faille of Pan China Construction Group in Nanjing,Nanjing 210008, China; 2.Transportation School of Southeast University, Nanjing 210096, China）
出处
《电脑知识与技术》
2007年第8期842-844,共3页
Computer Knowledge and Technology
