| 摘要 |
PROBLEM TO BE SOLVED: To provide a route searching method by which a guiding route can be searched effectively. SOLUTION: Firstly, it is checked whether or not an intersection to pass through twice exists on a searched guiding route. When such an intersection exists, the route starting from and ending at the intersection and containing no loop part is used as a guiding route. COPYRIGHT: (C)2004,JPO&NCIPI |
