Dear list, Just to keep you up to date, we’ve got limited access to the imagery and we’ll just use the imagery for the mapping. So it sounds like we didn’t need this whole import process in the end. Best wishes, Jorieke
Jorieke VYNCKE Missing Maps Coordinator & OCA GIS Focal Point Manson Unit - MSF UK [MSF_dual_English_CMYK] MSF UK, 10 Furnival Street, London, EC4A 1AB www.msf.org.uk<http://www.msf.org.uk/> || +44 (0)20 7404 6600 || UK Charity Reg. No. 10265888 Don't print if you don't need From: Jorieke Vyncke <[email protected]> Sent: 22 July 2020 12:39 To: [email protected] Subject: Re: [Imports] Import building footprints Lopa & Lingo Thanks Claire, I’ll try to get that done. Best, Jorieke From: Claire Halleux <[email protected]<mailto:[email protected]>> Sent: 22 July 2020 11:33 To: Mateusz Konieczny <[email protected]<mailto:[email protected]>> Cc: Jorieke Vyncke <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> Subject: Re: [Imports] Import building footprints Lopa & Lingo Hi Jorieke, Would the situation change if myself and the few volunteers working on uploading the data could have access to the initial imagery? I think that might be maybe possible… Of course if there are experienced mappers here who would like to help out with the import, please let me know, you’re always welcome to join the effort! Yes, it would help a lot to better trust the data if at least you or a few contributors could visualize the initial imagery. I had previously identified a few places which seemed more or less suspicious in my point of view, happy to share them with you if you can request some kind of (even limited) access to the imagery. Claire From: Mateusz Konieczny via Imports <[email protected]<mailto:[email protected]>> Sent: 21 July 2020 13:04 Cc: [email protected]<mailto:[email protected]> Subject: Re: [Imports] Import building footprints Lopa & Lingo As I understand, the plan is to load the buildings in manageable sets from the tasking manager, and person doing verification will skip solely clearly bizarre geometries and assume that everything else is correct. I think that given presence of nonsense geometries means that seemingly OK ones cannot be assumed to be valid ones, and only verified ones should be imported. Jul 21, 2020, 11:53 by [email protected]<mailto:[email protected]>: I get the impression Mateusz thinks the import will consist of an automatic dump of the data, whereas the actual plan is to load the buildings in manageable sets from the tasking manager and then a person does the verification, maybe by using the todo plugin in JOSM? Polyglot On Tue, Jul 21, 2020 at 10:25 AM Jorieke Vyncke <[email protected]<mailto:[email protected]>> wrote: Hi Mateusz, Thanks for your feedback! 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. 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. Best wishes, Jorieke From: Mateusz Konieczny via Imports <[email protected]<mailto:[email protected]>> Sent: 20 July 2020 18:20 Cc: '[email protected]<mailto:[email protected]>' <[email protected]<mailto:[email protected]>> Subject: Re: [Imports] Import building footprints Lopa & Lingo Jul 20, 2020, 18:18 by [email protected]<mailto:[email protected]>: 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. 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. So clearly suspicious shapes such as this trapeizodal ones will be skipped and everything else without blatant mistakes will be imported without verification? That seems to be a bad idea and I am opposed to such import. It will just burden any community of mappers that may appear with soul-crushing cleanup. _______________________________________________ Imports mailing list [email protected]<mailto:[email protected]> https://lists.openstreetmap.org/listinfo/imports _______________________________________________ Imports mailing list [email protected]<mailto:[email protected]> https://lists.openstreetmap.org/listinfo/imports
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