[OSM-newbies] Garmin feature codes

Dave F. davefox at madasafish.com
Fri Sep 2 18:39:31 BST 2011

On 02/09/2011 17:10, Bob Hawkins wrote:
> I am trying to understand the mysteries of Garmin feature codes.  I am 
> guided by the list that is in the cGPSmapper manual plus other 
> sources, some of which have quite obscure codes, in creating my 
> personal .typ file that I use in conjunction with mkgmap.  Such codes 
> are necessary in order to obtain greater variation in representation 
> of, say, various land use features.  Yet I cannot ascertain whether 
> these codes are recognised by my Legend HCx until I upload the 
> resultant gmapsupp.img, and often they are not recognised.  Does this 
> depend upon the individual GPS device or its firmware?  Does anyone 
> know of custom codes, particularly for polygons and polylines, that 
> are usually recognised by Garmin devices?
> Bob Hawkins

Hi Bob

You might get a more informed answer on the mkgmap:


You may also want to read through these:


Dave F.
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