digitization of buildings Bing pre-Image:
I have noticed on some areas that people put a big polygon borders areas
over several buildings.
Let me remind you that building is unique ( base on roof color, shadow)
and in most case it is either rectangular or square. So no trapeze or
bizzare form.
The zoom scale may be less than 30 m depending on the quality of the image
Take josm building tool and also the building continues under the trees.
thank you in advance, I'm not in *the****quality control****team*, but
if we can save their time, in this important task.
In any case it is amazing work done so far, well done, all the best and
continue to help
FredM OSM contributor
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