Thread: How to use GMapTool and cgpsmapper to split a Garmin "IMG"

Users can do what they want when it comes to the mapset name.

So to answer the question:

make a BeNeLux 22 Q2 for example

If you do that only have one of the maps on not both.


But by leaving the .IMG map mapset alone you have the date of that map.

I have many maps from many different sites.
The only thing I do is rename gmapsupp.img to Topo_BNL.img for my OpenFietsMap.
I also rename gmapsupp.img from Freizeitkarte BNL which I rename to Topo_F_BNL
and rename gmapsupp.img OSM Top Summer Bel which I rename Topo_S_Bel

Almost all topo maps you download come as gmapsupp.img in most cases.

But I do not put all of them on my GPSMAP 66 even if I have the space because it is very easy to leave them all on.
But I can clearly see how old the maps are leaving the mapset alone.

Another thing I do not do is turn on both BNL and DE because they over lap on another in coverage.
So I am hiking or biking in the BeNeLux which has parts of Germany I do not turn on German topo.

The same if I am in Germany I turn of BeNeLux because of over lapping of areas.
It does cause problems keeping both on.

As you can see in my screen shot about that Topo_DE is old.
I need to get a new version of it.

On my laptop I have folders for every topo map I have.
Each one I download I rename the .IMG map by the names I have shown you in the correct folder for use later.

When I download a newer version of Germany I delete the old one and rename gmapsupp.img to the name I want.

If I have not been downloading any topo maps for sometime I can also see the date of the one I have on my GPS because I have not changed the mapset.
Then if I need it I go and get it and replace it on my GPS with a newer map. (If need at that time.)

Users have to be very careful as to what they are doing this forum is full of users doing thing that screw up things.

I keep it very simple and have never run into any problems since 2007 with Garmin products or maps.

If one knows what there are doing then make all the changes you want. (But remember what you changed 3 or 4 months from now.
That is not always the case with some users......