[GRASS-user] Making and Uploading Maps for Garmin Etrex Legend GPS

[Alex Mandel]

I see some room for confusion here. I think on Garmins the basemaps 
"built-in maps" are not vector format but raster format .img files.
So the short answer is you can't dump them on the way you're trying to, 
you need to convert them.

You'll need to look for a tool like this 
http://wiki.openstreetmap.org/index.php/Mkgmap but meant to work with 
the formats your using and the platform you're on.

Hope that helps,
Alex

John C. Tull wrote:
> I've used gpsbabel for moving points, tracks, and routes to/from a 
> Garmin GPSV.
> 
> http://www.gpsbabel.org
> 
> John
> 
> On Aug 7, 2008, at 5:17 AM, John Stevenson wrote:
> 
>> I have digitised some points, roads and a lake in GRASS and would like 
>> to be able to upload them onto my Garmin Etrex Legend.
>>
>> I have been able to use v.out.ogr format=kml to output the points, and 
>> can upload them to the GPS with gpsbabel.
>> However, I would like the roads and the lake to be loaded into the 
>> built-in maps.  I read a post on the GRASS mailing list archive that 
>> mentioned cGPSmapper, but it seems like this only works with ESRI 
>> shape files (v.out.ogr again) if you have one of the paid-for versions.
>>
>> Is there any open source software that can do this?  Can GRASS export 
>> in a format that can be more easily converted to be compatible with 
>> the GPS?
>>
>> Thanks
>>
>> John
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> 
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