| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic map data-converting device which combines a node polygon with a link polygon, is connected to the node polygon to integrate them into one body on the basis of data-converting conditions input by a converting condition-inputting means to prepare derivative electronic map data which have various expressing forms for processing devices from basic electronic map data.SOLUTION: The electronic map data-converting device 1 executes data conversion to electronic map data on the basis of setting conditions, the electronic map data composed of: road network data for information processing in which a road network is expressed as a network by nodes and links, and the links and nodes are given road kinds and road shapes as attributes; and road drawing data for graphic display in which road shapes which correspond to the links and nodes of the road network data are expressed as the link polygons and node polygons. In addition, the device includes: a converting condition-inputting means 121 which inputs data-converting conditions; and a polygon-combining means 122 which combines a node polygon with a link polygon which is connected to the node polygon to integrate them into one body on the basis of the data-converting conditions input by the converting condition-inputting means 121. |
