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Road map data structure, road map data structure creating method, road map data storage medium, and navigation device
Road map data structure, road map data structure creating method, road map data storage medium, and navigation device
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机译:道路地图数据结构,道路地图数据结构创建方法,道路地图数据存储介质和导航装置
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摘要
Systems, methods, and programs create a road map data structure, the data structure including road network data in which a road is represented by a plurality of links connected in a link string. The systems, methods, and programs assign a link ID to each of the links of the road network data. For each link, the link ID has a numerical range set in accordance with both a length of the link and a road attribute, and the link ID is set sequentially in a connection order within the link string.
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