Axis An defines a direction and a position (base) in 3D space. The following constructors are supported: Axis() -- empty constructor Axis(Axis) -- copy constructor Axis(Base, Direction) -- define position and direction Axis > copy() Returns a copy of this Axis move(Vector) Move the axis base along the vector multiply(Placement) Multiply this axis with a placement reversed() -> Axis compute the reversed axis Vector to the Base position of the Axis Direction vector of the Axis