Hi Guys,

I am trying to determine the height of the underside of a roof on a few exact locations but I cannot make it work.The roof is sloping down over a curved beam in the center. Ideally I would draw a line from a certain location on the ground upwards and cut if off, but I don't know how.
I also tried to make walls are columns and conntect the top to the roof, but it doesn't let me do much with the geometry of this roof. Also the elevation spot doesn't seem to stick to the geometry.

Any ideas are very much appreciated.
Cheers