Hi Kavan, yeah I agree 
. Having knowledge about the displacements and movements is absolutely necessary to understand what's going on.
This is just to help him visualise the wedge shaped addition(grafting) which you wrote about in your previous post.
Although you are correct to show the illustration where the SPACE left behind from the displacement is that which is filled in via the downgraft, the space left behind isn't a wedge. It's quadrilateral; a four sided figure. A wedge section is a 3 sided figure. For example, if I cut of the VERTEX from a wedge of cheese, it's no longer a triangle shape. It's a 4 sided figure.
So, the illustration is that of a downgraft that has anterior + posterior downgrafting. Hence CW + CCW where CCW is more than CW for a NET CCW rotation.
It's not a wedge shape because the wedge shape (left behind to be filled via a downgraft) relates to the rotation of a triangle around a FIXED point (the vertex corresponding to the ANS point). See illustration I linked to. The GREEN triangle; A, B', C' is actually the DISPLACEMENT of the BLUE triangle; A,B,C when rotated X degrees CCW. The A point is FIXED (not displaced with the CCW rotation). The space left behind is A,B, B' which is a wedge.
The illustration you showed is not a wedge because the ANS point (corresponding to the A point in the triangle illustration) is not FIXED. It's displaced downward which RELATES to anterior downgraft which is Clockwise.
So, for the concept of CCW when the 'A' point of a triangle= the 'ANS' point of a triangle constructed on the face; ANS, PNS, Pog and where that A point is FIXED is a 'pure' CCW rotation. The rotation is effected by 'prying' the B point down to B' which, in turn, displaces C to C'. B to B' is the downward distance of the posterior downgraft which arises by rotating X degrees around the fixed A point. C to C' is the advancement of the chin point that is effected from the rotation.
A point= ANS point on the facial triangle. B point= PNS on the facial triangle. C point= Pog point on the facial triangle.
A prime sign ' after the point means the point has been displaced to a different location.
The best way to conceptualize the geometrical displacements in action is to cut out a shape of a triangle (use cardboard). Fix point A (pin it down). Trace it. Rotate it (CCW). Trace it after you rotate it. You will see how the C point moves forward when you move the B point down and the A point is fixed. Cut out a variety of triangle shapes. (Each person has a different triangle construct from ANS, PNS, Pog points.)
The rotation of a triangle is a very fundamental concept to maxfax rotations. People who are DISCONNECTED to the CONCEPTUAL geometry of that will have a very difficult time understanding maxfax displacements. Because maxfax displacements deal with points, lines, angles planes and rotations which relates to geometric principles.
