Thread: How to merge Garmin maps with Gmaptool

@budiperkasa
Yes you can but you'll lose the full search capabilities if any .img has been 'reverse engineered' at all. Best to join maps with MapInstall from gmap folders to make a combined image file if you're not sure of the source of the images, but if you made them yourself from gmap folders using MapInstall then NP to join then with this method.

My point is then, why not just use MI to make one image from the separate gmap folders in any case if they're available, 'coz that's the best way to be 100% sure and simply cut out the 'join image step'.

EDIT: Thanks Caty, added info to make it clearer.

Originally Posted by Neil

@budiperkasa
Yes you can but you'll lose the full search capabilities. Best to join maps with MapSource from gmap folders to make combined image files.

If you combine imgs made with MS you wont loose search.
Sometimes users upload these files made with MS, you can join them in one single file with GmapTool and have fully functional search

Originally Posted by odelacruz

What do you mean loosing full search capabilities? Can you point me to the thread where I can use MapSource to join maps?

[Only registered and activated users can see links. ]
this and more here
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Gmaptool splitted .IMGs dont have search enabled:Gmaptool can create a Mapsource version starting from an .img map file, but these Gmaptool MS installations dont have search enabled because Gmaptool cant decode Mapsource address index in .img.(MDR subfile)
If you have original Garmin Mapsource installations made .IMGs instead, you can join them with Gmaptool ,like wrote in starting post and have search enabled because Mapsource imported correctly MDR files in the selected .IMGs.
Every JCV file is associated by its MAPID to its related .img, so it will work if the MAPID is the same in JCV and in .img.