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Three-dimensional map display navigation device, three-dimensional map display system, and three-dimensional map display program
Three-dimensional map display navigation device, three-dimensional map display system, and three-dimensional map display program
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机译:三维地图显示导航装置,三维地图显示系统和三维地图显示程序
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摘要
A three-dimensional map display navigation device includes a map database having a road database that stores road data and a stereograph database that stores stereographic data of a solid body; a route information storage portion for storing route information pertaining to a guidance route set based on the road data; a stereographic data reading unit for accessing the map database, computing a discrete distance between the guidance route and the solid body, and transferring stereographic data pertaining to the solid body that has been simplified depending on the discrete distance to a buffer portion; and a map image generating unit for generating a three-dimensional map image for route guidance based on the stereographic data loaded from the buffer portion.
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