> Does SELECT ST_AsBinary((gv).geom), (gv).val FROM (SELECT > ST_DumpAsPolygons(ST_Slope(rast) gv FROM height_newcastle) foo calculate > the slope surface from height_newcastle and then display it in OpenJump?
Yes... > Do I not need to use '([rast.x] - 1) * 10 + [rast.y]') to assign the unique > values > anymore? 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'::text) was just a test raster. Pierre _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
