Well, more to the point, there might not BE a network connection at the time you need a route.
I am playing around with the android version of the osm software. If you plan ahead, you can download batches of tiles for the general area you are heading to. GPS should work anywhere in the world you have a clear view of the sky from. Out in the middle of nowhere in Australia, you wont have any network connection. The UI of osm is confusing as hell, full of little secret things you have to know to do. So far I've not found a way to store routes while you have 'net, then pull them up when you have no 'net. In fact, the current route is a very delicate thing, push the wrong button, and it gets wiped while the device searches in vain for a network to grab a new route from. Yes I got lost once for this very reason. On Sat, 30 Apr 2011 17:18:14 +0900 Carsten Haitzler (The Rasterman) <ras...@rasterman.com> wrote: > On Sat, 30 Apr 2011 09:22:02 +0200 Atton Jonathan > <jonathan.at...@gmail.com> said: > > david's point is.. that he doesnt want to use a network connection at > all off the device. every thing local. so you'd need to make a > locally installed osm. > > > osm does all this no ? maybe we do not need to write it. But it > > will a request a big storage for tiles. > > > > 2011/4/30 Carsten Haitzler <ras...@rasterman.com> > > > > > On Sat, 30 Apr 2011 08:56:11 +1000 David Seikel > > > <onef...@gmail.com> said: > > > > > > > On Sat, 30 Apr 2011 02:12:49 +0900 sangho park > > > > <gouach...@gmail.com> wrote: > > > > > > > > > as basic concept, route information can be acquired by > > > > > service, not local data. > > > > > we can extend route for shortest path using local backing > > > > > store, but it's just option. > > > > > yes..yes.. it'll be very good feature that uses local map and > > > > > route data, but we should overcome so many license issues. > > > > > > > > Personally I think it's absolutely critical to be able to do > > > > local routing. That's my main use case, navigating out in the > > > > wild when I have no data connection. "Semi manual" routing is > > > > OK, that's even a desired feature. Pick out a few waypoints, > > > > draw some route segments, tell it to follow this road or river > > > > from waypoint C to waypoint D, but keep the A to B to C and D > > > > to E segments... > > > > > > > > Perhaps, if we have to, precalculate route segments when there > > > > is a data connection, store them; then manipulate them later, > > > > adding or removing them to a particular route. > > > > > > > > /me does not want to be stuck out in the middle of nowhere with > > > > no routing ability. > > > > > > to me this all seems like it would be best done as client-server > > > locally too. > > > unlike remote map server, it has 1 shortcut - you don't DOWNLOAD > > > map tiles. you > > > are directly pointed to the file. this way routing can be > > > offloaded to the local mapserver (and calculating a route can > > > take a long time, and need a lot > > > of route data, so this makes sense). all the abstraction needs is > > > the short cut > > > ability for tiles. > > > > > > someone still then has to write that local server and routing > > > engine :) do you > > > want to? :) (a local tile server would be trivial, but routing... > > > that's another matter as technically it may not be that hard as > > > its just solving a graph, the problem is having the right graph > > > data with the right weighting, and > > > then a whole tonne of "fuzzy logic" thrown in to cover up "odd > > > solutions" that > > > may come out of the graph that a human would never make). > > > > > > -- > > > ------------- Codito, ergo sum - "I code, therefore I am" > > > -------------- The Rasterman (Carsten Haitzler) > > > ras...@rasterman.com > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > WhatsUp Gold - Download Free Network Management Software > > > The most intuitive, comprehensive, and cost-effective network > > > management toolset available today. Delivers lowest initial > > > acquisition cost and overall TCO of any competing solution. > > > http://p.sf.net/sfu/whatsupgold-sd > > > _______________________________________________ > > > enlightenment-devel mailing list > > > enlightenment-devel@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > > > > > > > > > > > -- > > Regards. > > -- A big old stinking pile of genius that no one wants coz there are too many silver coated monkeys in the world.
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