Base quantities that are common to the definition of all occurrences of curtain walls.
The length of the object.
Along center line (even if different to the wall path).
Total height of the curtain wall. It should only be provided, if it is constant along the curtain wall path.
The width of the object. Only given, if the object has constant thickness (prismatic).
Only be provided, if it is constant along the curtain wall path.
Area of the wall as viewed by an elevation view of the middle plane of the wall. It does not take into account any wall modifications (such as openings).
Area of the object as viewed by an elevation view of the middle plane of the object. It does take into account all object modifications (such as openings).