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[mkgmap-dev] Split gmapsupp.img files over 4GB

From Felix Hartmann extremecarver at gmail.com on Tue Jun 9 13:03:32 BST 2020

Hi Gerd,
Same result as MapInstall (Basecamp). So yes - same family Id, description
and so on - just a different filename. gmapsup1.img; gmapsup2.img and so
on. MapInstall does the same if you send maps over 4GB to devices that can
support several gmapsupp.img files.

It's pretty cumbersome to run a script to only include individual .img
files up to 4GB for each run...
Essentially making it possible to create Europe continent map in
gmapsupp.img format (several files) or Asia continent (or even whole world
- but I guess no one will do so - except if cutting down data very strong).

Currently mkgmap just creates gmapsupp.img files over 4GB - they cannot be
used by any garmin device due to FAT32 limits.

On Tue, 9 Jun 2020 at 08:06, Gerd Petermann <gpetermann_muenchen at hotmail.com>

> Hi Felix,
> sorry, I have no idea what the result of such a split should be. Two
> gmapsupp files with different content but equal family-id, description etc?
> Doesn't sound like a good idea to me. My understanding is that a map
> creator has to decide what part of the world should go into one gmapsupp.
> Gerd
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
> Felix Hartmann <extremecarver at gmail.com>
> Gesendet: Montag, 8. Juni 2020 12:19
> An: Development list for mkgmap
> Betreff: [mkgmap-dev] Split gmapsupp.img files over 4GB
> Could mkgmap automatically split gmapsupp.img over 4GB (or have an option
> to do so - but besides Oruxsmaps/locus and some other not often used tools
> - I don't know any others that can use larger gmapsupp.img files duet to
> FAT32).
> It would be nice if those gmapsupp.img files were somehow rastered - but
> even just according to mapid would be fine.
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev

Felix Hartman - Openmtbmap.org & VeloMap.org
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