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

[Davi Pires]

Sorry. All geometries are in SRID 4326.

Davi

On Mon, Feb 2, 2009 at 9:55 PM, Paragon Corporation <lr at pcorp.us> wrote:
> 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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>
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