[postgis-users] Bounding Circle instead of Bounding Box

[Shane Spencer]

Could you reply with a URL to what buffers are and how they would be used in
this context? I'm totally unfamiliar.

On 9/9/07, Nico Mandery <nicomandery at googlemail.com> wrote:
>
> Hi Rainer,
>
> You could could use a buffer instead of bounding boxes.
> Just an idea
>
> Nico
>
> Am Sonntag 09 September 2007 schrieb postgis at jochem.name:
> > Hi,
> >
> > what I want to do is finding certain features in some distance around a
> > certain point. Those features should be located in some corridor between
> X
> > and Y km around this point. Currently I've solved this problem by
> > computing two bounding boxes of X and Y km around the point and taking
> the
> > difference of those. So far so good.
> >
> > But I don't want to have some quadratic box but a real circle - is there
> > any way to achieve this?
> >
> > Best regards,
> >  Rainer
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