| 摘要 |
PROBLEM TO BE SOLVED: To accurately display a road to which the driver should especially pay attention at the time of traveling on a road in a way that the driver easily understand. SOLUTION: When the user desires to confirm a road to which the driver should especially pay attention (e.g.; a road where an ascent and a descent continue), map data are read and, if the roads L1, L2 are included, three- dimensional image data are given according to a predetermined rule and three- dimensional computer graphics processing is executed to general display data. Thus, the driver can accurately grasp at a glance the state of the roads to which attention should be paid and can use the same in safe traveling. |
