[mkgmap-dev] maps overlaying each other

Sun Dec 6 10:42:54 GMT 2020

Hi.
How can i avoid that a section of a map (in a gmapsuppA.img) overlays some 
neighbouring map (in a different gmapsuppB.img) making it inaccessible on the 
GPS unit?

Example,
say i have Sweden and Norway, neighbouring countries. Data is downloaded from 
goefabrik per country. Splitting and generating map done per country.
Sweden gets --draw-priority=50 and Norway gets 51.
In the border areas, when the tiles are a bit outside of the country, the 
Norwegian map overlays the Swedish, details from both maps are visible but one 
cannot click on a point on the Swedish (lower) map because the empty Norwegian 
map is drawn above.

--transparent option is not used to avoid other non-wanted transparency.
--bounds is used.
--add-boundary-nodes-at-admin-boundaries is used.

Is there some good way to avoid this issue, to make sure that details from the 
lower map can be accessed? Perhaps make the splitter more strict on the 
borders?

regards
Karl