[mapserver-users] Clipping out unprojectable area?

[Christopher Schmidt]

On Mon, Feb 09, 2009 at 04:20:47PM -0800, Gregor at HostGIS wrote:
> >Alter your geometry DATA selection to be ST_Union(geom,
> >bbox_of_projection)?  
> 
> Not sure I get you. I see that union would trim to a square. What would 
> be the effective box of a given projection?

Depends n the projection. The data is stored in the EPSG database, and
exposed in a human readable form on spatialreference.org: if you need to
support any projection, then you'll have to keep a copy of the epsg
database handy for yourself.

Regards,
-- 
Christopher Schmidt
MetaCarta