| 摘要 |
PROBLEM TO BE SOLVED: To solve such problems that a long time is required for execution of an application program because an application means receives supply of all map data of a map data memory means, and that a change of the application means is required by a format change of the map data. SOLUTION: This device is equipped with a map manager having a map object producing means for reading out the map data from the map data memory means in response to the request from the application means, and for producing a map object in the form suitable for the request of each application, and a map object output means for receiving offer each generated map object, for converting it so as to be fitted to execution of the application program, and for outputting it. |
