On Sat, 30 Apr 2011 11:33:51 +0900
Carsten Haitzler (The Rasterman) <ras...@rasterman.com> wrote:

> 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).
> 
someone said something about network transmissions?

-- 
Mike Blumenkrantz
Zentific: NULL pointer dereferences now 50% off!

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