Thanks for your help and sorry for my late response!
This works for me as I’m trying do draw vertical lines from the lowest to the highest points of my profile view.
With this bounding box method I can retrieve the absolute height, regardless of the vertical exaggeration of my profile view.
(I’m still interested in how to get the value of the vertical exaggeration but I’ll open another thread for that matter so things don’t get to confusing)
Again - thank you for fast and qualified help! 