On Tue, Jul 26, 2011 at 09:47:23AM -0500, Mr. Puneet Kishor wrote: > > On Jul 26, 2011, at 9:34 AM, Sandro Santilli wrote: > > > On Tue, Jul 26, 2011 at 09:31:50AM -0500, Mr. Puneet Kishor wrote: > > > >> ERROR: function st_interiorringn(geometry) does not exist > > > > Check your parens, the call above is missing a parameter (ring number). > > > > That is a bit embarrassing. Yes, I had missed out on giving the ring number. > However, still no luck -- > > SELECT objectid, > ST_NRings(the_geom) num_of_rings, > ST_NumInteriorRings(the_geom) num_of_int_rings, > ST_NumPoints(ST_ExteriorRing(ST_GeometryN(the_geom,1))) > num_of_points_ext_ring, > ST_AsText(the_geom) wkt_feature, > ST_AsText(ST_MakePolygon(ST_ExteriorRing(ST_GeometryN(the_geom, 1)))) > wkt_ext_ring, > ST_AsText(ST_MakePolygon(ST_InteriorRingN(ST_GeometryN(the_geom, 2), > 2))) wkt_int_ring_a, > ST_AsText(ST_MakePolygon(ST_GeometryN(the_geom, 2))) wkt_int_ring_b > FROM table > WHERE objectid = 280; > > objectid: 280; > num_of_rings: 4; > num_of_int_rings: 3; > num_of_points_ext_ring: 496; > wkt_feature: "MULTIPOLYGON(((<1>),(<2>),(<3>),(<4>))"; > wkt_ext_ring: "POLYGON((<1>))"; > wkt_int_ring_a: ""; > wkt_int_ring_b: "" > > As you see, I tried to get the interior ring "n" two different ways. Not > getting anywhere.
Write down a matrix of all combinations you tried. Use real paper, and pencil. Publish a scanned version. --strk; () Free GIS & Flash consultant/developer /\ http://strk.keybit.net/services.html _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
