[OSRS-PROJ] orthographic projection with proj4 and mapserver.

Norman Vine nhv at cape.com
Thu Aug 14 13:23:30 EDT 2003

Judd Taylor writes:
> I'd be very interested in any algorithms like Norman described  that clip
> the main polygons into areas, without showing the boundries between areas.
> Any links/examples?

Umm.... didn't mention you were using GPC
some simplistic but effective areas for the globe
might be just the upper and lower quadrants 
( 8 areas total)

More sophisticated areas can be based on a
recursive platonic solid, but any structure 
topologically equivalant to a sphere will do

No reasons the boundaries will show unless
you draw them as the polygonal pieces should
just abut if the math is done correctly


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