On Jan 7, 2008 3:51 PM, Frederic Bouvier <> wrote:
> If we keep the same triangle budget for every tile, we will have sparse
> data and
> features at the equator and much more than what is really needed at the
> poles,
> just because the area covered by each tile will vary greatly (
> proportional to
> 1/cos( lat ) if my math is ok )
My gut feeling is that once you get up (or down) into the latittudes where
the tiles get significantly skinny, the resolution of the available data
drops of significantly. We really don't have a per-tile triangle budget
anyway. The only place where I see this making a difference is the
concentration of terrain elevation points would increase, but this is up in
an area where we only have very low res terrain data anyway. SRTM drops out
beyond +/- 60 degrees latitude.
Regards,
Curt.
--
Curtis Olson: http://baron.flightgear.org/~curt/
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