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List:       postgis-users
Subject:    Re: [postgis-users] Removing Interior Rings
From:       Michael Fuhr <mike () fuhr ! org>
Date:       2006-11-30 7:49:26
Message-ID: 20061130074926.GA85377 () winnie ! fuhr ! org
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On Thu, Nov 30, 2006 at 02:26:27PM +1100, Craig Feuerherdt wrote:
> I am attempting to simplify a series of polygons by buffering them and then
> unioning the buffers together (sql below).
> This works fine however, in some instances, there are interior rings (holes)
> which I would like to remove.
> I have tried Segmentize, but it failed to remove the interior rings.

Have you tried exteriorring() to get the exterior ring as a LINESTRING
and makepolygon() to turn it back into a POLYGON?

-- 
Michael Fuhr

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