[OSM-talk] mspray stealth organized mapping

[Pierre Béland]

 Le vendredi 22 mai 2020 10 h 40 min 51 s UTC−4, Mateusz Konieczny via talk <talk at openstreetmap.org> a écrit :  
 
> Are you sure that in 72427535 buildings were just moved?
If I place the mouse over a red oultine (old building), Achavi reports «Modify geometry»
Loading the changeset in an editor for validation, I confirm that I only see create and modify actions.
https://www.openstreetmap.org/api/0.6/changeset/85329885/download
 > buildings and college that used to be mapped at
> https://www.openstreetmap.org/#map=18/-12.94547/28.64318
> It is gone thanks to https://overpass-api.de/achavi/?changeset=72427535
Achavi reports for old building «delete way» and «delete node»
Pierre 

 

    Le vendredi 22 mai 2020 10 h 40 min 51 s UTC−4, Mateusz Konieczny via talk <talk at openstreetmap.org> a écrit :  
 
 Are you sure that in 72427535 buildings were just moved?
buildings and college that used to be mapped at
OpenStreetMap


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It is gone thanks to https://overpass-api.de/achavi/?changeset=72427535

BTW how one may undelete delete buildings? Straight revert will delete new ones,
what may be not needed.

Use reverter plugin in JOSM, copy buildings to a new layer, delete reverter layer, save?

Is there some script that I can run with "revert deletions only in changeset XYZ"?

May 22, 2020, 15:47 by talk at openstreetmap.org:

Le vendredi 22 mai 2020 07 h 29 min 19 s UTC−4, Frederik Ramm <frederik at remote.org> a écrit :
> Sometimes users deleted a large number of
> buildings e.g. here https://overpass-api.de/achavi/?changeset=72427535
> without giving a clear reason

Looking at Achavi, red outlines make us think objects were deleted. But in fact, the buildings were simply slightly moved to realign to DigitalGlobe imagery (not Bing).  And no correction of geometry was made, even where too many and unsquared angles to represent a rectangular building. Also Tags are systematically added:  
    "mapper"="mspray4"
    "source"="Akros"
 



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