[mkgmap-dev] Maps with contours shows two maps in some devices (i.e. Zumo XT)

Mon Jun 8 09:22:52 BST 2020

Hi there.

I create my maps with contours using the following command

java -jar ./mkgmap/mkgmap.jar  --description="*$family_name - OSM*"
--output-dir="$dest"/ \
 --family-id=10030 --product-id=1  --family-name="*$family_name - Map*"
 --route --remove-short-arcs  --bounds=bounds.zip \
 --precomp-sea=sea.zip  --location-autofill=is_in,nearest
--draw-priority=20  --gmapsupp  --index --housenumbers
 "$work"/"$suffix"*osm.pbf  ./typ/gspeed.typ    \
 --family-id=10031 --product-id=1  --family-name="*$family_name - Contours*"
--draw-priority=10000  --transparent   $contours ./typ/gspeedContours.typ

In blue the part that refers to contours. Mapids for the two sets are
different.

On my Garmin Montana I see just one map with the name passed in
--description option (*$family_name - OSM*).
On an old Garmin Nuvi I see two maps, the real map with streets (named
*$family_name
- Map*) and the one with contours (named *$family_name - Contours*), which
I can enable/disable individually.
On the new Garmin Zumo XT I see two maps, both named *$family_name - OSM. *I
can't disable just one of the two, they seems to be linked and it is weirs
they show up with very same name in the list.

Question: is there a way I can merge the two maps so I get the same
behaviour anywhere?

Thanks!
Enrico
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