Thank you very much Maxime.
I knew there was a function like this, just could not remember the name.
Regards
Jan
On 02.11.2010 14:01, Maxime van Noppen wrote:
> Hi,
>
> ST_Difference does the trick.
>
> http://postgis.refractions.net/docs/ST_Difference.html
_
On 11/02/2010 01:48 PM, Jan Saalbach wrote:
> Dear All,
> is there a function to easily subtract a polygon from a polygon. Both
> are rectangles.
>
> The scenario:
> Two overlapping polygons identified by ST_INTERSECTS.
> Creating a third one from the overlapping area via ST_INTERSECTION.
> Subtra
Dear All,
is there a function to easily subtract a polygon from a polygon. Both
are rectangles.
The scenario:
Two overlapping polygons identified by ST_INTERSECTS.
Creating a third one from the overlapping area via ST_INTERSECTION.
Subtract the overlap from the two initial polygons. Which funct
