[postgis-users] Data cleaning options

[TECHER David]

Michael Welter a écrit :

Hi Michael

For "Ring Self-Intersection" have a look at 
http://www.davidgis.fr/blog/index.php?2007/05/11/234-few-errors-with-postgis


In order to clean up your data as well, you could try QGIS, jump ou 
openjump (I don't remember :( ) to clean up your data.

Kind regards

--david;
> I get a few "Self-intersection" and "Ring Self-intersection" on my 
> polygons as well.  What does this mean?
>
>
>
> Tim Keitt wrote:
>> Hi All,
>>
>> I have a large collection of rather malformed polygons in postgis and
>> need to clean them somehow. Running isvalid() on the geometry column
>> gives many "Ring self-intersection" errors, some "Interior is
>> disconnected" errors and the always enjoyable "Too few points in
>> geometry component" error. What options are there for
>> cleaning/correcting polygons?
>>
>> THK
>>
>
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