[Mapserver-users] masking

[Norman Vine]

Aaron D. Hunt  writes: 

> Is there anyway to make a mask in mapserver? 
> I need to block out anything outside of a polygon.

Not really sure what you are asking but you can draw
a *large" polygon in the desired background color as 
the topmost layer with a 'tranparent' polygon cutout for 
the area you want the map rendered in

Or you can use mapscript to modify the image

HTH

Norman