constraining a profile chord axis to be colinear with a reference point

[benoitpaillard]

Hi all,
I'm doing multi-element profile optimization in dafoam. I'd like the rear profile to stay aligned with some point inside the the main one, see pic attached

I cannot find a way to do it, even with more advanced approaches

• there's a addColinearityConstraint, but not available in dafoam it seems
• I tried using some linear constraint on FFD points coordinates but I couldn't make it work properly
• I tried rotation by defining axis at A, but then translation needs to be calculated from rotation angle

Any help would be greatly appreciated !!

cheers