A Novel Route Analysis Method Based on Landmark Objects
Network analysis is an important module in geographic information system (GIS) fields. The module has been applied to find the best route, service area, and closet facilities. To complete the procedure, the resource (demand or supply points) conditions and network system must be established first. Analysis results are usually turned to the application of navigation e-map in GIS. Conventional network analysis modules based on graphic theory. The algorithms focus on using the time, direction and distance as the factors to minimize the cost. The output results are mostly the representation of letters and numerals together with the intersection of road in navigation system. The users still need time to think over before using the route guide (from the information of letters and numerals). In navigation system, the landmark objects means clear, popular, and interest of points in the E-map, such as building, convenience stores, signposts. They can support user to check the route more directly. In this paper, the landmark objects based method was combined with the conventional network analysis modules. The layers of landmark objects build as the resource conditions. And GIS buffering procedure was involved in the process. Finally, landmark icons and photographs were joined with original output. The object and graphic demonstration can provide the users more instinctive results, and provide users with additional assistance to facilitate their judgment during navigation.
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Document Type: Research Article
Publication date: 2012-07-01
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