[postgis-users] To correct Exterior Rings

[Nicolas Ribot]

Hi,

You should try st_buildArea, or st_polygonize, as suggested by Remi. It
corrects these kinds of errors.

Nicolas


On 11 February 2014 17:21, Richard LEHAUT <richard.lehaut at crpf.fr> wrote:

>  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>:
>
>>  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>:
>>
>>>  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
>>>
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>>
>>
>>
>>
>
>
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