> SELECT ST_AsBinary((gv).geom), (gv).val FROM (SELECT > ST_DumpAsPolygons(ST_Slope(ST_MapAlgebraExpr(ST_AddBand(ST_MakeEmpt > yRaster(10, > 10, 0, 0, 0.1, 0.1, 0, 0, 4269), '8BUI'::text, 1, 0), '32BUI', '([rast.x] - > 1) * > 10 + [rast.y]'), 1, '8BUI'::text)) gv > FROM height_newcastle > ) foo
Well now that you got ST_Slope working you have to pass it your own raster.... SELECT ST_AsBinary((gv).geom), (gv).val FROM (SELECT ST_DumpAsPolygons(ST_Slope(rast) gv FROM height_newcastle) foo _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
