Re: genapts

Dale Edmons wrote:

>The VPF data, as I recall, has information on cliffs.  If the code was working
>for placing a cliff/canyon into the scenery one could then just define a cliff
>on all edges of a tile and finish processing.  I'm sure this is overly
>simplistic, but it'd have the great advantage that FlightGear/Terragear would
>then have real canyons, cliffs, and no bright seams.  This would be very nice
>even if the lowres tiles never get used or implemented.
>
>  
>

Feel free to play with the data and prove me wrong, but vpf data is so 
much lower res than the SRTM data (and often the vpf is off by a few 
hundred meters) that I don't see cliff data as being all that useful.  
Sometimes I wonder if the river/stream data is all the useful when it 
doesn't match the surrounding terrain very well.  Once in a while I get 
tempted to calculate watershed myself from the SRTM terrain, but I 
suspect this is an overwhelming computational (and disk IO) problem to 
do on a global scale.

Regards,

Curt.

-- 
Curtis Olson        http://www.flightgear.org/~curt 
HumanFIRST Program  http://www.humanfirst.umn.edu/
FlightGear Project  http://www.flightgear.org
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