[mkgmap-dev] generated gmapsupp incompatible (?) with eTrex Legend

Sun Dec 26 21:22:32 GMT 2021

hello gerd,

thank you. it's https://files.mkgmap.org.uk/detail/539

cheers, jose

On Sun, Dec 26, 2021 at 5:31 PM Gerd Petermann <
gpetermann_muenchen at hotmail.com> wrote:

> Hi Jose,
>
> sorry, I don't know how to help here. Maybe you can upload the two files
> to files.mkgmap.org.uk/
> and we can check what the difference is.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
> jose1711 <jose1711 at freeshell.de>
> Gesendet: Samstag, 25. Dezember 2021 23:34
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: [mkgmap-dev] generated gmapsupp incompatible (?) with eTrex Legend
>
> hello,
>
> i am using mkgmap to generate gmapsupp img from an osm file, then
> uploading it via serial connection to eTrex legend (b/w version). i noticed
> the following behaviour:
>
> - gmapsupp file created by mkgmap does not always show in the device
> (sometimes even the map metadata is missing) or there are glitches (lines
> across the whole screen on some zoom levels)
>
> - same file opens just fine in gpxsee (https://www.gpxsee.org/)
>
> - if i open tdb and matching .img file in qlandkarte (no longer being
> developed), select submap and export to gmapsupp, the new file is larger
> and the issues after uploading to garmin device are gone
>
> what sometimes helps (with file coming out of mkgmap) is uploading with a
> speed of 9600 bauds (as opposed to 115200).
>
> here's an example:
>
> - mkgmap gmapsupp.img - 302592 bytes
>
> - qlandkarte gmapsupp.img (same map) - 786432 bytes
>
> i was checking a diff but could not make out anything (too many
> differences). haven't tried older versions of mkgmap or checking out other
> tools yet.
>
> could you please advise?
>
> thank you,
>
> jose
>
>
> ps: i can share both map files if it helps in any way.
> _______________________________________________
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> mkgmap-dev at lists.mkgmap.org.uk
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>
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