Dear All,

  I would like to create a movie (for a course) showing how a molecule undergoes crystallographic symmetry operations.  So, for example, if looking at a 2-fold screw axis, the movie would show either:
1.   The molecule rotating about the 2-fold, then translating 1/2 a unit cell (in either order)
2.  Or, the molecule undergoing a screw transformation (combined rotation and translation).

So one would generate about 50 (or less?) intermediate structures, each one transformed a successive fraction of the desired operation.

It seems that SuperSym will generate the symmetry mates, but I want to animate how you go from one to the next.  Is there a facility that someone has already created?




Harry M. Greenblatt

Associate Staff Scientist

Dept of Structural Biology 

Weizmann Institute of Science        Phone:  972-8-934-3625

Rehovot, 76100                       Facsimile:   972-8-934-4159