I haven't had any training in this, but as soon as I outlined my first couple
of buildings on OSM a few months ago, the solution as described by Matt
Williams quickly jumped out as the correct approach. Also, I have to
respectively disagree with Florian's statement "As the parallax-shift is the
same for the full of the sat image you can also draw 100 Buildings and shift
them at once." on two counts. Firstly, if the photographic axis is truly
vertical, then the parallax shift is in opposite directions to the right and
left of the photo centre (i.e. the buildings will all be appearing to "lean"
away from the centre of the photo. Secondly, the shift in the roof of a 50
floor building will be 5 times that of a 10 floor building at the same
location. While I don't disagree with shifting several buildings concurrently,
I should think that they should be relatively close to each other and roughly
the same height.
Bill
From: Florian Lohoff <f...@zz.de>
To: Help for newbie mappers <newbies@openstreetmap.org>
Sent: Friday, June 12, 2015 6:15 AM
Subject: Re: [OSM-newbies] Buildning alignment
As the parallax-shift is the same for the full of the sat image you can
also draw 100 Buildings and shift them at once
Just make shure that you are not shift already shifted buildings or
buildings taken from images with a different parallax problem.
_______________________________________________
newbies mailing list
newbies@openstreetmap.org
https://lists.openstreetmap.org/listinfo/newbies
