I'm not seeing this problem on your polygon. What does select postgis_full_version()
say? On Thu, Oct 9, 2008 at 7:56 PM, <[EMAIL PROTECTED]> wrote: > Hi All, > > In debugging the problem below, I found that TRANSFORM would fail with some > of my city multipolygons. > > I would think that the TRANSFORM function should be independent of the shape > or complexity of the polygons or lines. > > Attached is one of the city multipolygons that failed the TRANSFORM > function. > > Thanks, > CYW > > > ----- Original Message ----- From: <[EMAIL PROTECTED]> > To: "PostGIS Users Discussion" <postgis-users@postgis.refractions.net> > Sent: Thursday, October 09, 2008 8:13 PM > Subject: [postgis-users] transform - update lake > setthe_geom=transform(the_geom, 26971) > > >> I have a table city which contains Multipolygons (SRID=4326) in latitude >> and longitude. To project it to a plane coordinate (SRID=26971), I did: >> >> update lake set the_geom=transform(the_geom, 26971); >> >> It ran without any error. But some of the resulted values in the_geom >> column became null or empty. >> >> Any hitnts why it did this? >> >> Before the transformation, I viewed the table with QuantumGIS, it looked >> OK. Afterwards, QuantumGIS showed nothing. >> >> Thanks, >> CYW >> >> >> >> >> _______________________________________________ >> 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 > > _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
