Hey, it looks like you’re not too far off…
Have a look at this:
I think you’d be better getting a room location rather than a 2D (view specific) spot height.
You’ll want any 3D view which shows the room and the ceiling/roof to plug in.
When you get the points you’ll probably just get the distance between 2 points, Hot Gear and GIS2BIM have that node.
Hope that helps,
Mark
Edit: Like this… I was a bit wrong, only certain 3D views will work and I couldn’t see the logic for which… And you need the list deconstruct. I obviously did this from a floor plan, but you could do it for more if you wanted, though it will start to get very slow…
