[postgis-users] CLEAN command (was:Cleaning non valid multipolygon)

[Stefan Keller]

Hi,

Recently there was an interesting thread about "Cleaning non valid
multipolygon". The goal there was to eliminate small polygons. This is
similar to ArcGIS' ELIMINATE command, see
http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?id=1398&pid=1394&topicname=Eliminate_(Coverage
).

Now, there is another command I remember from ArcGIS, called CLEAN (see
http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=Clean%20(Coverage)).


Among other's, it (1) deletes dangling lines that are shorter than a
specified dangle length, and (2) merges coordinates within a certain
tolerance of each other.
In case, someone has already resolved this using PostGIS, I'd be interested.

-S.
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