What does the ‘Move Centroid to Origin’ button in the transform node do? It's not in the documentation.
And yes, I understand that it moves the centroid to the origin - - but I can't find a good definition of the origin or the centroid (I would have thought they were the same thing) - and knowledge of what those two do appears to be quite important to understanding what the button does.
edward It calculates transform values such that the centroid of the input geometry (AFAIR it's the average position of the points), to the (0,0,0) origin.
- but I can't find a good definition of the origin or the centroid (I would have thought they were the same thing) - and knowledge of what those two do appears to be quite important to understanding what the button does. 
