Today I have been working on translating a .dwg survey into existing conditions for neighboring buildings for a remodel. The survey locates windows for neighboring properties, giving sill height, head height, and window width only. All dimensions are relative to sea level.
To locate these windows correctly, I first set the Altitude (Sea Level) properly.From here I could place temporary morph lines in plan to locate center line of windows and other building features.
Then, in the morph element settings, I set the height relative to Sea Level, and matched the sill and head height described in the survey.
From this point, it was just a matter of matching and stretching the windows to the morph lines in 3d or elevation.