Base quantities that are common to the definition of all occurrences of windows.
The width of the object. Only given, if the object has constant thickness (prismatic).
Total outer width of the window lining. It should only be provided, if it is a rectangular window.
Total outer height of the window lining. It should only be provided, if it is a rectangular window.
Perimeter of the object.
Calculated area for the object.
Total area of the outer lining of the window.