[mkgmap-dev] Commit: r1576: There seems to be a way to show elevation profiles for a route without

Thu Feb 18 17:58:36 GMT 2010

svn commit (svn at mkgmap.org.uk) wrote:

>
> Version 1576 was commited by steve on 2010-02-18 17:44:07 +0000   
> (Thu, 18 Feb 2010)
>
> There seems to be a way to show elevation profiles for a route without
> having the DEM subfiles stored in the map.
> There is a byte in TDB file's header section which can be set to 1. If
> set MapSource generates the profile from the contour lines. The result
> is not as good as having the full information from DEM subfiles but
> better than nothing.
>
> There is a new option "--show-profiles" to enable or disable this feature.
> Default is disabled.
>
How does this work? Does it still work if your contours are in a  
separate layer from the route-able ways?

Does it assume that contours are defined by Garmin types 0x20, 0x21  
and 0x22?  If yes, then if you have a TYP file that uses these codes  
for something else, this option would go screwy, presumably?

-- 
Charlie