(setq pt '(1.0 2.0 3.0)) (setq cs_from 0) ; WCS (setq cs_to 1) ; UCS (trans pt cs_from cs_to 0) ; disp = 0 indicates that pt is a point If the current UCS is rotated 90 degrees counterclockwise around the World Z axis, the call to trans returns a point (2.0,-1.0,3.0...