| 摘要 |
A positioning system has a position measuring mode and a simulated navigation mode. In the position measuring mode, the system measures an actual position of a movable body. On the other hand, in the simulated navigation mode, a simulated position of the movable body is derived using a determined route to be traveled by the movable body. The system derives the simulated position of the movable body as a position which moves along the determined route at a given speed. The system displays the derived simulated position of the movable body at a center of a display screen, along with a corresponding map and the determined route in a superimposed fashion. Accordingly, the system automatically scrolls the corresponding map and route at a given speed, with the derived simulated position of the movable body being constantly displayed at the center of the display screen.
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