摘要
文章介绍了基于 GIS和 Web GIS技术开发的大连市道路交通管理信息系统。该系统通过综合使用 Map Basic和 Visual Basic( VB) ,实现了道路和交通事故空间信息和属性信息的可视化查询和修改。采用 Visual C+ + 的动态链接库技术 ,提高了最短路径搜索模块的算法效率 ,克服了实时计算两点间最短路径所需时间过长的难题 ,同时提供了存取路径文件功能。在运用 Map X-trem e建立的 Web GIS平台上实现了网上查询功能。
This research aims to develop a road traffic information system for Dalian City based on GIS and Web GIS technologies.Visualized query and maintenance of spatial and attribute data of roads network and traffic is realized with MapBasic and Visual Basic (VB) programs.Dynamic Link Library (DLL) technique of Visual C++ is applied to raise the speed of shortest path searching module,and then difficulty of time consuming during the shortest path searching is overcome,at the same time function of saving and accessing the path file is supplied.Web GIS platform established with MapXtreme offers the function of query through network.
出处
《交通与计算机》
2002年第5期18-21,共4页
Computer and Communications
