[postgis-users] return boundary

[Tim Bowden]

On Mon, 2008-11-24 at 11:45 -0500, Travis Kirstine wrote:
> I don't think that the geom union would in combination with the
> boundary would attach the island to the mainland.  I don't think that
> there is a simple answer to my problem but I have attached a pic to
> help illustrate what I'm trying to accomplish.
> 
> Regards
> 

Looking at that image seems to me it's just another case of what Regina
pointed to (http://ubicomp.algoritmi.uminho.pt/local/concavehull.html)
in the concave hull thread.

Regards,
Tim

-- 
Experience is that marvelous thing that enables you recognize a mistake
when you make it again.