[postgis-users] How to make this invalid polygon valid one

[Markus Innerebner]

Hello

I am trying to create a buffer around my polygon, which unfortunately is not
a valid one.
(reason: "Self-intersection[......]").

This polygon is the output of my calculation that creates from a set of
connected edges an area, consisting of all edges located on the border.

http://postgis.17.n6.nabble.com/file/n4564623/Screen_Shot_2012-03-09_at_10.02.41_PM.png
Polygon image 

can someone tell me, what can I do, to remedy this behavior and to make this
geometry valid

this are the sql statements to reproduce my problem:
http://postgis.17.n6.nabble.com/file/n4564623/testPolygon.sql
testPolygon.sql 

thanks 

Markus


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