[mkgmap-dev] Opening gmapsupp.img with Basecamp?

Sun Mar 20 14:02:41 GMT 2011

Hi

> I've been experimenting with Garmin BaseCamp opening gmapsupp.img
> files that I create. It works fine for some files (even getting the
> .TYP styling correct) but not for others. After a few hours of testing
> it seems that it'll open gmapsupp.img files created from 1-20 .osm
> files but not 30+ .osm files. I'm not certain yet if it's the exact
> number of files, or the combined size that triggers the failure.

Is the size of the resulting gmapsupp.img around 128M when it goes wrong?

If so it could be the 'filesystem' parameters in the header, which are 
set to allow a size of 128M.  This is ignored by devices so isn't 
usually a problem.

..Steve