might be an idea worth considering: have the possibility to calculate a route, and pre-render the bitmaps of your route (at a few zoom-levels) This way it doesn't have to be done on the fly when you know for example where you are going to travel to when you don't follow the planned route it will of course render new files when nescessary
you should also have the option to delete them afterwards of course or maybe a setting "two way trip"; this setting wil save all the rendered files on your way to your destination, use the pre-rendered images on your way back, and ask you if you want to delete them when you return home just an idea On Mon, Dec 14, 2009 at 10:32 AM, Mike Crash <m...@mikecrash.com> wrote: > > Sure I'm using speed data from OSM and if not available, set it based on > way > type and common speeds. I can find shortest and fastest path. No detection > if road is in the city yet. > > I made some progress in last days and I'm going to use it for the first > time > to drive home today :) > > > Bastian Muck wrote: > > > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > Mike Crash schrieb: > >> I use A* for routing, it is usable, but still not what I expect. > >> But I have some improvements in my mind :) I need to create > >> rerouting now and to test it in real life > > > > I don't have any idea, how the code looks like, but I guess, that you > > use gps-positions as heuristic and distances as edge-weights. That > > means that you always get the shortest path. If you want to get the > > fastes path, then you have to use timevalues calculated by possible > > speed and edge-length. With openstreetmaps that can be difficult, > > because many roads don't have any speedsproperties. You often only can > > use the roadtype depending on country to guess the speed. > > Maybe you used this, but in a first shit, I guess that you don't. > > > > I hope these ideas can help you improving your tool. > > > > Greetings Bastian > > > > -----BEGIN PGP SIGNATURE----- > > Version: GnuPG v1.4.7 (MingW32) > > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > > > iD8DBQFLI6B6lYiDScJJ+7QRAugfAKD4cLPiucAwIP2eXajmSlMdRSyKxQCg3q6D > > bChe84DmVlpTa9dx4dBzE2o= > > =II9r > > -----END PGP SIGNATURE----- > > > > > > _______________________________________________ > > Openmoko community mailing list > > community@lists.openmoko.org > > http://lists.openmoko.org/mailman/listinfo/community > > > > > > -- > View this message in context: > http://n2.nabble.com/Navigation-tp4141297p4163143.html > Sent from the Openmoko Community mailing list archive at Nabble.com. > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community >
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