:) So if proj doesn't have z transformation then ... I have a bogus proj
install or corrupt spatial ref definition?
postgis=# select postgis_proj_version();
postgis_proj_version
-------------------------
Rel. 4.4.9, 29 Oct 2004
(1 row)
Since my answer is different than yours, something is amiss.
Paul Ramsey wrote:
On Tue, May 5, 2009 at 9:58 PM, Kevin Neufeld <[email protected]> wrote:
But (and folks can correct me if I'm wrong since the docs don't actually
specify) transforms operate on *all* dimensions.
postgis=# select st_asewkt(st_transform('SRID=3005;POINT(1240227 495643 5)',
4001));
st_asewkt
----------------------------------------------------------------------
SRID=4001;POINT(-122.689717977579 49.4258574870912 533.550271589169)
(1 row)
That's news to me and my version of PostGIS:
medford=# select st_asewkt(st_transform('SRID=3005;POINT(1240227
495643 5)', 4001));
st_asewkt
-------------------------------------------------------
SRID=4001;POINT(-122.689717977579 49.4265525863074 5)
(1 row)
My intuition was that reprojection would leave Z alone, since proj4
has no z-transform capabilities.
P.
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