[mkgmap-dev] Altitude Units for Contours

Fri Nov 16 15:54:39 GMT 2012

On 16/11/2012 15:14, michael lohr wrote:
> i got it from the mkgmap default style. i never thought much about it, 
> because it just worked. but i'm wondering now why the converion is 
> necessary at all, because the altitude is written as the name of the 
> contour line. aren't names just strings?
I don't think so - according to the default contours_ft style, "# 
Contours take their name from the elevation setting.". But their names 
change according to 'preferences/units' in MapSource. For example, in 
changing from metres to feet, '250' changes to '820' and the mouseover 
name changes from '250 m' to '820 ft'. I imagine the same will apply on 
the GPS unit, but it doesn't seem to happen for peaks. Also, if the 
'ele' value of a contour is non-numeric, MapSource complains about it.

Roger


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