--On 20 December, 2011 8:53:12 -0800 Elaine Meng <meng@cgl.ucsf.edu> wrote:
Yes, "turn" or "roll" specifies exact rotations, "move" exact translations.
The rotation commands also allow you to specify center and axis of rotation (it doesn't have to be X, Y, or Z).
Thanks to both of you! I had found "rotation" and even "roll", but not "turn", which is indeed what I need! Konrad. -- --------------------------------------------------------------------- Konrad Hinsen Centre de Biophysique Moléculaire, CNRS Orléans Synchrotron Soleil - Division Expériences Saint Aubin - BP 48 91192 Gif sur Yvette Cedex, France Tel. +33-1 69 35 97 15 E-Mail: research AT khinsen DOT fastmail DOT net http://dirac.cnrs-orleans.fr/~hinsen/ ---------------------------------------------------------------------