James, I think you will have to upgrade.
What is the result of SELECT PostGIS_Scripts_Build_Date()? ST_Slope was introduced on nov 30th, 2011... Pierre > -----Original Message----- > From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users- > boun...@postgis.refractions.net] On Behalf Of JamesH > Sent: Tuesday, March 27, 2012 11:45 AM > To: postgis-users@postgis.refractions.net > Subject: Re: [postgis-users] ST_Slope > > Hi Stephen, > > Thanks, I have been attempting to use this query: > SELECT > ST_Slope(ST_MapAlgebraExpr(ST_AddBand(ST_MakeEmptyRaster(10, > 10, 0, 0, 0.1, 0.1, 0, 0, 4269), '8BUI'::text, 1, 0), '32BUI', '([rast.x] - > 1) * 10 + > [rast.y]') > , 1, '8BUI') > FROM > nclheights; > > I have included the ::text cast which now returns an error of "function > st_slope(raster, integer, text) does not exist, No function matches the given > name and argument types". > > Trying to produce a slope surface from a 1 band raster - unsuccessfully. > > Regards, > James > > -- > View this message in context: http://postgis.17.n6.nabble.com/ST-Slope- > tp4551303p4661339.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 _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
