I do not understand how IJK works when a plane or point are not square to the coordinate system. If the plane is square, then I get it. Lets say the point in this picture was square instead of at a slight angle. Then the surface vector would be 1, 0, 0. That makes total sense to me. However, when there is a slight angle, I don't get it. My understanding is that the K value should be non-zero because the plane is clearly rotated about the Z axis...but my K value is 0.
Can someone please attempt to explain this to me in a simple way? Why is "J" my largest value?
