| 摘要 |
<p>Methods and apparatus for generation of a route from a source location to a final destination are described. In one embodiment, a two-ended search is performed based on the principles of the A* algorithm. That is, two routes are simultaneously generated, one from the source to the destination, and one from the destination to the source. In another embodiment, a route generation algorithm determines when to stop searching for route candidates. The algorithm searches a map database for a first number of iterations thereby generating a first route candidate. After the generation of the first route candidate, searching of the map database is terminated after a second number of additional iterations. A best route candidate is then selected as the route. <IMAGE></p> |
