[talk-ch] Corrupt buildings

Simon Poole simon at poole.ch
Wed Jul 25 10:29:58 CEST 2018


Redaction tries to retain as much as possible of the work in the
changesets, in particular deletions are maintained (the last time I
looked at this in detail is a longish time ago, so I might be wrong,
naturally it could be argued that that behaviour doesn't make sense post
licence change). So in general the redaction should have been applied
post revert in this case, which doesn't seem to be the case here.

Simon


Am 25.07.2018 um 10:09 schrieb _ dikkeknodel:
>
> Hi Simon,
>
>  
>
> I am not sure what you mean here, can you explain what you mean by ‘I
> doubt that something has gone wrong’?
>
>  
>
> To my understanding the redaction should have brought the nodes and
> ways back to the state from before the copyright infringement. For the
> sample of buildings I checked that state was being a rectangular way
> tagged as building=yes and thus also 4 nodes. Now the way has three
> nodes, and thus is a triangle. To me and probably most others this
> looks like a unsuccessful redaction.
>
>  
>
> Cheers,
>
> dikkeknodel
>
>  
>
> *Van: *Simon Poole <mailto:simon at poole.ch>
> *Verzonden: *woensdag 25 juli 2018 09:55
> *Onderwerp: *Re: [talk-ch] Corrupt buildings
>
>  
>
> I doubt that something has gone wrong.  A redaction is not a revert (aka
> it doesn't restore a previous state of an object), so the result depends
> on what happened in the changeset that is being redacted.
>
> If a building was added then it will simply vanish, if the geometry was
> manipulated (for example by removing and adding a node) the results
> might not be what is "expected".
>
> Simon
>
>
> Am 25.07.2018 um 09:41 schrieb Stefan Keller:
> > Hi Nelson
> >
> > 2018-07-25 8:29 GMT+02:00 _ dikkeknodel wrote:
> >> Something seems to have gone wrong with the redaction is my conclusion.
> > Indeed: https://osm.org/go/0CYTlJg8k--?way=317495841
> >
> > Any explanations why?
> >
> > :Stefan
> >
> >
> > 2018-07-25 8:29 GMT+02:00 _ dikkeknodel <dikkeknodel at hotmail.com>:
> >> Hi all,
> >>
> >>
> >>
> >> I had a closer look at the naoliv’s redaction CS61021881.
> >>
> >>
> >>
> >> I see, many previously rectangular buildings have now become
> triangles or
> >> just an open L-shape.
> >>
> >> https://www.openstreetmap.org/way/317495841
> >>
> >> https://www.openstreetmap.org/way/317495891
> >>
> >> https://www.openstreetmap.org/way/317487442
> >>
> >> etc.
> >>
> >>
> >>
> >> More complex shapes have also lost a node and became less complex
> with some
> >> very weird shapes.
> >>
> >> https://www.openstreetmap.org/way/317487614
> >>
> >> https://www.openstreetmap.org/way/317336799
> >>
> >> https://www.openstreetmap.org/way/317336826
> >>
> >> etc.
> >>
> >>
> >>
> >> It is all over the place basically. If a look to the pre-redaction
> version
> >> of the buildings, they seem to be nicely rectangular.
> >>
> >>
> >>
> >> It also seems that the address data entered with CS60359203,
> CS60359697 and
> >> CS60359350 have been (mistakenly) redacted (the blue ones in
> achavi, tag
> >> change only). These CSs mention local knowledge as source and there
> is no
> >> mention in the changesets discussions of any problem.
> >>
> >>
> >>
> >> Something seems to have gone wrong with the redaction is my conclusion.
> >>
> >>
> >>
> >> Cheers,
> >>
> >> dikkeknodel
> >>
> >>
> >>
> >>
> >>
> >> ________________________________
> >> Van: talk-ch <talk-ch-bounces at openstreetmap.ch> namens marc marc
> >> <marc_marc_irc at hotmail.com>
> >> Verzonden: Wednesday, July 25, 2018 2:13:37 AM
> >> Aan: talk-ch at openstreetmap.ch
> >> Onderwerp: Re: [talk-ch] Corrupt buildings
> >>
> >> witch building in this changeset is corrupt after naoliv change
> >> and not before ?
> >>
> >> Le 25. 07. 18 à 01:26, Kt47uo5uVzW a écrit :
> >>> Check this: https://overpass-api.de/achavi/?changeset=61021881
> >>>
> >>> No I'm not involved in any kind of this import/region.
> >>>
> >>> Regards
> >>>
> >>>
> >>> marc marc:
> >>>  > Hello,
> >>>  >
> >>>  > Le 25. 07. 18 à 00:25, Kt47uo5uVzW a écrit :
> >>>  >> I think the latest changesets from user 'naoliv' are erroneous.
> >>>  >> Can somewhere check and maybe revert this? Thanks.
> >>>  >
> >>>  > can you give an exemple ?
> >>>  > naoliv redact (hidde) data copied from Fribourg cadastre
> >>>  > (the licence of the canton of Fribourg doesn't allow it).
> >>>  > so a building should not be corrupted by this redact
> >>>  > but it should be already corrupt before.
> >>>  >
> >>>  > are you the guy that did the import ?
> >>>  >
> >>>  > Regards,
> >>>  > Marc
> >>>  > _______________________________________________
> >>>  > talk-ch mailing list
> >>>  > talk-ch at openstreetmap.ch <mailto:talk-ch at openstreetmap.ch>
> >>>  > http://lists.openstreetmap.ch/mailman/listinfo/talk-ch
> >>>  >
> >>>
> >>>
> >>> _______________________________________________
> >>> talk-ch mailing list
> >>> talk-ch at openstreetmap.ch
> >>> http://lists.openstreetmap.ch/mailman/listinfo/talk-ch
> >>>
> >> _______________________________________________
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> >>
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> >>
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>
>  
>
>
>
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