Very cool, thanks. On Sat, 30 Apr 2011 19:28:31 +0900 sangho park <gouach...@gmail.com> wrote:
> some years ago, i made route application using local map data. > at that time, dijkstra's algorithm was a perfect solution. > now I'm downloading 'asia.osm.bz2'. it is 2.3 Gbytes.. > the size is reasonable for recent mobile external memory. > > i'm gonna make sample route program and test on my n900. :) > there are some open sources for that, but i do make it from scratch. > okay.. as everybody said. local feature is needed. > > i'll focus my brain to that feature for the time being.. > > Thanks. > > > > Date: Sat, 30 Apr 2011 11:33:51 +0900 > > From: Carsten Haitzler (The Rasterman) <ras...@rasterman.com> > > Subject: Re: [E-devel] splitting elm_map into a new library > > To: David Seikel <onef...@gmail.com> > > Cc: enlightenment-devel@lists.sourceforge.net > > Message-ID: <20110430113351.427703e5.ras...@rasterman.com> > > Content-Type: text/plain; charset=US-ASCII > > > > 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 -- 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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