Stephen Woodbridge wrote:
Hi guys,
This is looking like it might be a bug on version "POSTGIS="1.3.3"
GEOS="3.0.0-CAPI-1.4.1" PROJ="Rel. 4.6.0, 21 Dec 2007" USE_STATS" which
I know is ancient, but upgrading is not trivial.
What I am trying to do is construct a shape in 900913 in meters and then
rotate, transform it to 4326 and translate it to a location.
The problem is the transform does not look correct. To just rough out
the math, 4030 meters should be about 0.036202 degrees based on
4030/40075016*360 = 0.036202 but st_transform is giving back numbers
like -5.67596869587729e-09
Is this a known problem on this version?
Is my logic faulty?
Is there a better way to do this?
Thanks,
-Steve
Hi Steve,
The first thing I would suggest is that you run the same query on a
spare fresh 1.4/1.5 installation and see what happens. The
transformation code had a good tidy up and some logic corrections within
that timeframe, including better reporting of error messages.
HTH,
Mark.
--
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063
Sirius Labs: http://www.siriusit.co.uk/labs
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