About mapping of tall apartment blocks

Mapping of tall buildings differs from standard buildings. Because the imagery is taken at an angle, you see both the rooflines and also the side of a building. 
How do you map such a building?
Map over the rooflines and lastly slide the mapped building to the footprint.
Please adjust wrong positioned buildings as well
This video shows how that is done.

https://drive.google.com/file/d/1V5-bADsYiffCD9bo6l64YOdTvmKqMGry/view?usp=share_link

And.... don't forget to square each rectangular building.

Best regards and keep mapping
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            Published using OSMCha: https://osmcha.org/changesets/133512897
            