[Om2008.9] GPS && pre-fetching maps from openstreetmap.org

Baruch Even baruch at ev-en.org
Wed Oct 29 14:12:57 CET 2008


On Wed, 2008-10-29 at 13:33 +0100, Matthias Apitz wrote:
> > Hello,
> > 
> > The GPS is now working very fine with tangoGPS on my FR; I'm storing the fetched maps
> > in /media/card/osm and they're fetched through the USB via my Internet
> > connection, so far so good;
> > 
> > Is there somehow I structured way to pre-fetch maps without using
> > tangoGPS and go virtually to the area and walking around there on the
> > touch pad? I mean, can I say "I wanna have the area with the coordinates
> > X1-X2-X3-X4 and store them with zoom level NN" into /media/card/osm"?
> > The reason I'm asking: I will go to Cuba in some weeks, being offline
> > there, but it would be nice having the maps with me. Thx

* William Kenworthy <billk at iinet.net.au> [081029 14:51]:
> Maps get big though - I have over 1Gbyte for an approx 100x100 km area
> around Perth, Western Australia (much of which is blank compared with
> other places :)

I actually wrote a script to download a bounding box of maps and hard
link the empty tiles to each other so as to save space. Though the best
would have been for tangogps to support such a feature since that would
also save on inodes.

It's not fully tested yet, but you can send me an email to get a copy
for now.


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