[postgis-users] Circle

[Bob Pawley]

Is that the only function of the buffer - to create a circle?

Can the buffer modify other functions. If so - what is the criteria?

Bob
----- Original Message ----- 
From: "Paul Ramsey" <pramsey at cleverelephant.ca>
To: "PostGIS Users Discussion" <postgis-users at postgis.refractions.net>
Sent: Friday, June 13, 2008 4:33 PM
Subject: Re: [postgis-users] Circle


> Try it and see :)
> It constructs a circular-shaped polygon around the point.
> P
>
> On Fri, Jun 13, 2008 at 4:23 PM, Bob Pawley <rjpawley at shaw.ca> wrote:
>> I'm interested in what the buffer actually does.
>>
>> Bob
>>
>> ----- Original Message ----- From: "Paul Ramsey" 
>> <pramsey at cleverelephant.ca>
>> To: "PostGIS Users Discussion" <postgis-users at postgis.refractions.net>
>> Sent: Friday, June 13, 2008 3:46 PM
>> Subject: Re: [postgis-users] Circle
>>
>>
>>> ST_Buffer(ST_MakePoint(x,y),r)
>>>
>>> On Fri, Jun 13, 2008 at 3:35 PM, Bob Pawley <rjpawley at shaw.ca> wrote:
>>>>
>>>> What is the best way of creating a circle?
>>>>
>>>> Mu PostgreSQL Developes Handbook susy it should be - point and radius.
>>>>
>>>> Postgis doesn't seem to have this function.
>>>>
>>>> Bob
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