If you want routable maps (ones which can get you from A
to B because they contain all the interconnection information), you need to specifically look for these routable versions.
You'll need to create a top-level folder/directory on the
microSD card named "Garmin". In there, you'll need a map file called "gmapsupp.img".
If you download an individual map, it may already be called that. Otherwise it'll be called something like "63240001.img" or "63240002.img". You can simply rename it to "gmapsupp.img" and it should work.
If you want to combine two or more maps, you'll need a software tool to do that. It will produce a composite "gmapsupp.img". There is a program called "mkgmap" which will do that.
The Garmin format is universal. All the OSM (Garmin format) maps will work on a large range of Garmin mapping GPSs (both in-car and handhelds)
I haven't tried any of this myself, just passing on what I have found.
I don't know if this has been discussed here before but I ran across this info while doing a little surfing.
The general site for downloading OSM maps in Garmin format is:
http://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Downloa...
If you want routable maps (ones which can get you from A
to B because they contain all the interconnection information), you need to specifically look for these routable versions.
You'll need to create a top-level folder/directory on the
microSD card named "Garmin". In there, you'll need a map file called "gmapsupp.img".
If you download an individual map, it may already be called that. Otherwise it'll be called something like "63240001.img" or "63240002.img". You can simply rename it to "gmapsupp.img" and it should work.
If you want to combine two or more maps, you'll need a software tool to do that. It will produce a composite "gmapsupp.img". There is a program called "mkgmap" which will do that.
The Garmin format is universal. All the OSM (Garmin format) maps will work on a large range of Garmin mapping GPSs (both in-car and handhelds)
I haven't tried any of this myself, just passing on what I have found.
Anytime you have a 50-50 chance of getting something right, there's a 90% probability you'll get it wrong.