Beam grid types

Variables
const int	Cut = 4
	Faces appearing as a result of cutting a beam by other objects.
const int	FirstButt = 2
	The butt where the beam building has been started.
const int	SecondButt = 3
	The butt where the beam building has been finished.
const int	Side = 1
	Side faces of a beam.
const int	Undefined = 0
	Undefined.

Possible grid types for a Beam mesh