On Fri, Sep 19, 2014 at 09:41:23AM -0400, we recorded a bogon-computron 
collision of the <[email protected]> flavor, containing:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
> 
> I run Xastir with OSM tiles.  As I move around on my map and zoom in and out 
> I notice that it takes a while to load the tiles.  I think this is happening 
> because Xastir has to download the necessary tiles.  Has anyone come up with 
> a way to download all the maps you'll need for your area and keep them local 
> so if you are in an area without Internet access your maps will continue to 
> operate?

Actually, the OSM tile code DOES cache the maps it downloads, and it's not
supposed to be downloading the same ones over and over.

The code does seem to spend a lot of time thinking about downloading, though, 
even when it's got all the tiles cached.  I haven't looked at the code to
see why.  It always displays "Downloading tiles..." when it gets to a new
area, and there's always something of a pause. When it's actually downloading 
tiles, though,  it moves on to "Downloading tile X of Y".  If it already has 
them cached it doesn't do this and skips to "Reading tiles..." directly.

It could be that the downloading code is still contacting a server and querying
whether the tile in the cache is outdated.

The cache is supposed to work if you're off line, too.   I have not tried it
in a long time, though.

-- 
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236        http://kevan.org/brain.cgi?DDTNM
 echo "prpv_a'rfg_cnf_har_cvcr" | sed -e 's/_/ /g' | tr [a-m][n-z] [n-z][a-m]

 


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