[postgis-users] ST_Buffer

Paragon Corporation lr at pcorp.us
Tue Nov 30 09:54:08 PST 2010



Apologies for the anti-Microsofties in our crew.  They shall be sufficiently
slapped for their behavior J.


Which version of GEOS are you using?  


Do a:


SELECT postgis_full_version();


It's possible that you are using GEOS 3.3 beta and I did run into issues but
haven't pinpointed the issues I'm having yet.  I'm not near my server that
has GEOS 3.3. to test with.







From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of
dave at inventium.co.uk
Sent: Tuesday, November 30, 2010 10:51 AM
To: postgis-users at postgis.refractions.net
Subject: [postgis-users] ST_Buffer



I am completely new to PostGIS and I appear to be falling at the first
Trying the example in the documentation (
SELECT ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50); 
works fine while: 
SELECT ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50, 'quad_segs=4'); 
Gives a syntax error and 
SELECT ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50, 4); 
crashes the server. 
What am I doing wrong? 
PostgreSQL 8.4.5 on Windows 7 
POstGIS 1.5.2 
Thanks Dave 

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