[mkgmap-dev] DEM subfile

From Christian Gawron christian.gawron at googlemail.com on Sun Feb 21 15:42:13 GMT 2010

Hi,

based on some freely(?) available maps with DEM data and on "empty" DEM 
files created by GMapTool I started to analyze the DEM subfile format.

With the little information I got so far (see 
http://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/DEM_Subfile_Format) 
I managed to write some rudimentary code to create empty DEM files with 
mkgmap (just the same as GMapTool can do). If anybody has more 
information on the DEM format, I would be very happy to hear about it.

Best wishes
Christian

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