Re: tiles resolution

BONNEVILLE David wrote:

>Hi people,
>
>How could I know the resolution of the tiles downloadable from the graphical
>interface ? Maybe it is not possible to get this information from the data in
>the Scenery directory, but maybe people who generated tiles could tell me the
>original data resolution : 1 arcsec ? 3 ? 10 ? 30 ?
>Thx
>  
>

Most of the world has been built from 3 arcsec SRTM data.  However, this 
data is first run through a data reduction and approximation algorithm.  
This algorithm produces a smaller model that still follows the original 
data within some specified error tolerance.  There is a minimum and 
maximum number of nodes so that there will always be at least 50 nodes 
inserted into the resulting model, even if the error tolerance is 
reached, and there will never be more than 1000 nodes even if the error 
tolerence isn't reached.

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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