Hi
You're right, but these problemes are occurred after the ST_Union of few
geométies.
Thanks
Cheers,
Richard L
Le 12/02/2014 09:42, Rémi Cura a écrit :
You can also do the same trick, but reverted.
This time use buffer (positiv), buffer(negativ).
This should suppress the error in exterior ring.
I have to say this kind of filtering is not ideal to correct geometry ...
You would probably need a more serious way of cleaning you polygon .
Cheers,
Rémi-C
2014-02-11 17:24 GMT+01:00 Nicolas Ribot <[email protected]
<mailto:[email protected]>>:
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 <[email protected]
<mailto:[email protected]>> 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
<[email protected] <mailto:[email protected]>>:
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
<[email protected] <mailto:[email protected]>>:
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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