[Imports] Import building footprints Lopa & Lingo

[Mateusz Konieczny]

Jul 21, 2020, 10:23 by jorieke.vyncke at london.msf.org:

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> Hi Mateusz,
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> Thanks for your feedback!
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> There are really not that many of this type of buildings in the dataset, most of the buildings are nicely squared or circulized. By the manual verification of the data, we’ll of course compare and adapt the building data with the latest imagery that we have available on OpenStreetMap – the Maxar Premium Imagery. We’ll correct with help of that imagery and of course in all cases nicely square corners of the weird shapes. There will really not be a ‘soul-crushing cleanup’ needed after this import.
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> Would you rather propose to leave these buildings out? We could do that as well, but I would prefer not to, since this means we will have an incomplete dataset in the area. I’d rather choose for correcting the shapes with help of available imagery.
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Yes, unverifiable buildings should not be included given low quality of dataset 
(at least some bizarre geometries are present)

"Q: Some buildings have strange trapezoidal shapes, how are you planning to correct
them without accessing the imagery?

There are not that many of these. Since we are not able to check back with the original
imagery, we’ll have to trust the dataset we want to import for this and will upload the data."

indicates that you plan to blindly assume that buildings are correct, despite that dataset is known
to include bizarre geometries not representing anything real - and skip solely complete outliers.


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> Best wishes,
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> Jorieke
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> From:>  Mateusz Konieczny via Imports <imports at openstreetmap.org> 
>  > Sent:>  20 July 2020 18:20
>  > Cc:>  'imports at openstreetmap.org' <imports at openstreetmap.org>
>  > Subject:>  Re: [Imports] Import building footprints Lopa & Lingo
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> Jul 20, 2020, 18:18 by >  jorieke.vyncke at london.msf.org> :
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>> Q: Some buildings have strange trapezoidal shapes, how are you planning to correct them without accessing the imagery?
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>> T>> here are not that many of these. Since we are not able to check back with the original imagery, we’ll have to trust the dataset we want to import for this and will upload the data. Of course by looking at the data manually we would be able to spot areas with real issues with this and then we can still decide to not upload that data.
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> So clearly suspicious shapes such as this trapeizodal ones will be skipped and
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> everything else without blatant mistakes will be imported without verification?
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> That seems to be a bad idea and I am opposed to such import. It will just burden
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> any community of mappers that may appear with soul-crushing cleanup.
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