[postgis-users] To correct Exterior Rings

Richard LEHAUT richard.lehaut at crpf.fr
Tue Feb 11 08:21:43 PST 2014


My problem is the exterior ring of the polygon. There are points inside 
of this ring
http://hpics.li/2807e0d
These points make needless segments
http://imagik.fr/uploads/75091 (Inside black circle)
Cheers,
Richard L

Le 11/02/2014 17:02, Rémi Cura a écrit :
> What is the problem?
> What are "internal" lines?
> Cheers,
> Rémi-C
>
>
> 2014-02-11 16:59 GMT+01:00 Richard LEHAUT <richard.lehaut at crpf.fr 
> <mailto:richard.lehaut at crpf.fr>>:
>
>     Thanks for response
>     The fourth proposition is correct for external but not internal
>     lines : ST_Buffer (ST_Buffer (the_geom), -0.1), 0.1
>
>     Look http://imagik.fr/uploads/75091
>     Do you have an idea to solve this new problem?
>
>
>     Cheers,
>     Richard L
>
>     Le 10/02/2014 13:56, Rémi Cura a écrit :
>>>     simplify
>>>     simplify preserve topology
>>>     polygonise then filter on area,
>>>     opening operator (negativ buffer of X then positiv buffer of X)
>>>     ...
>>>
>>>     Cheers,
>>>
>>>     Rémi-C
>>>
>>>
>>>     2014-02-10 13:43 GMT+01:00 Richard LEHAUT
>>>     <richard.lehaut at crpf.fr <mailto:richard.lehaut at crpf.fr>>:
>>>
>>>         Hi
>>>         I succeeded to correct interior rings, but I've problem wih
>>>         interior rings.
>>>         Looks this screen (black circle). http://imagik.fr/view-rl/74788
>>>         Do you idea to resolve my problem?
>>>         Thanks
>>>         Richard L
>>>
>>>         _______________________________________________
>>>         postgis-users mailing list
>>>         postgis-users at lists.osgeo.org
>>>         <mailto:postgis-users at lists.osgeo.org>
>>>         http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users
>>>
>>>
>>
>
>

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