Sorry, for not making much sense here. What I wanted to
say was that ST_AsText(geom) should be equivalent to geom,
meaning that if you go from the database/binary
representation of the geometry to the text representation
of the geometry (using ST_AsText) and then back to the
database/binary representation (using ST_GeomFromText),
you should end up with the same geometry that you
started out with. This is important for applications
that use when WKT when talking to PostGIS.
Håvard
Mark Cave-Ayland wrote:
Håvard Tveite wrote:
ST_GeomFromText(ST_AsText(geom)) != geom
sounds like a bug to me (ignoring the SRS).
Håvard
No, since the SFS 1.1 specification supports only 2 dimensions with no
SRS (and ST_AsText() is spec compliant). If you need the SRS then you
should use the PostGIS-enhanced ST_EWKT() function which will output the
extra information, but is not spec-compliant.
ATB,
Mark.
--
Mark Cave-Ayland
Sirius Corporation - The Open Source Experts
http://www.siriusit.co.uk
T: +44 870 608 0063
_______________________________________________
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
