"I would refer to this wikipedia article:http://en.wikipedia.org/wiki/Foo_bar" Thanks Stephen, that has helped.
Cheers, Pierre that has loaded into OpenJump, though it has shown that I haven't completed my Slope function successfully so I will look at that Regards, James -- View this message in context: http://postgis.17.n6.nabble.com/ST-Slope-tp4551303p4679390.html Sent from the PostGIS - User mailing list archive at Nabble.com. _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users