Method for automatically generating dual line network by GIS single line network
A technology of automatic generation and line network, applied in the field of GIS road network, can solve the problems of long cycle, high production cost, limited road network production efficiency, etc., and achieve the effect of low cost and short cycle
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[0043] The invention adopts the GIS road data of the single line network model, and completes the automatic production of the double line road data through certain data processing.
[0044] The road data of single-line and dual-attribute mainly includes the node layer (Point type) and the road network layer (Polyline) of the single-line network. The node layer needs to contain the node ID field and the coordinate field. The id field is used to indicate the difference between different nodes. number difference. The coordinate field identifies the node's location; see figure 1 The A, B, C, and D nodes in the road network layer need to contain four fields, such as the number of forward lanes (CDS), the number of reverse lanes (RCDS), the starting node ID, and the ending node ID. The start node ID and end node ID are associated with the ID field of the node layer. See figure 1 AB, AC, AD, and AE sections in .
[0045] The concrete method of the present invent...
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