[postgis-users] how to use distances in kilometers in dwithin query?

[Paragon Corporation]

You can't.  It always uses the units of the spatial reference system your
data is stored in.

What spatial ref are you using?

Leo 

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Davi
Pires
Sent: Monday, February 02, 2009 3:12 PM
To: PostGIS Users Discussion
Subject: [postgis-users] how to use distances in kilometers in dwithin
query?

Hi list,

Regarding the st_dwithin(geometry, geometry, float) function, I would like
to know how can I pass the distance argument in kilometers. In our tests we
have been using a dummy value of 0.003, but we don't even know which units
it is in.

Thanks in advance,
Davi Pires

-- 


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