[postgis-users] Convex Hull with a certain "offset"

[Stefano Bonnin]

Alex Mayrhofer ha scritto:
>
>
> Stefano Bonnin wrote:
>> I'd like to find a convex hull "a little bit bigger". Is there a way 
>> to add a certain offset to the polygon
>> obtained from the convex hull query (like ST_expand for bounding boxes)
>
> Applying ST_Buffer() to the output of your query should do exactly 
> what you are looking for. See a practical application of the buffer 
> function in the map at http://timatio.com/traces/19069-sll-brandstadl
>
> Alex
> http://timatio.com/
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Thanks a lot, exaclty what I want!
stefano