<div dir="auto"><div>Martin,<div dir="auto">when we trace buildings we often use aerial imagery with no metadata available. </div><div dir="auto"><br></div><div dir="auto">AFAIK, Mapbox, Maxar, ESRI do not offer acquisition date in pubilshed licenced versions. Bing does.</div><div dir="auto">Nevertheless, we happily use all of them.</div><div dir="auto"><br></div><div dir="auto">Overall check: I mean working with an amount of data that allows some supervision (sampled alignment) and josm validator before upload.</div><br><br><div class="gmail_quote"><div dir="ltr">Il lun 23 mag 2022, 10:24 Martin Koppenhoefer <<a href="mailto:dieterdreist@gmail.com">dieterdreist@gmail.com</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
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sent from a phone<br>
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> On 23 May 2022, at 10:10, Cascafico Giovanni <<a href="mailto:cascafico@gmail.com" target="_blank" rel="noreferrer">cascafico@gmail.com</a>> wrote:<br>
> <br>
> I'd like to import building footprints recently published by Microsoft.<br>
> Here [1] is an import wiki draft.<br>
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I am not completely sure what is meant by “overall check” before the upload, but I would strongly advise that all buildings are verified prior to uploading them, against recent imagery, because the source data is based on imagery as old as 2014. A whole import of everything that does not touch a currently present building would probably re-add a lot of buildings that have already been removed from osm because they do not exist any more <br>
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Cheers Martin </blockquote></div></div></div>