I’m trying to write a script to be used in the per-frame operation of chimera MD Movie (I’m not an accomplished python programmer).   The script I wrote calculates order parameters and internal relaxation elements.  It appears that I have to import some chimera commands as well as the python math library to do this.  Everything works on a single frame, but I need to pass some variables from frame to frame, and the import commands appear to reset all variables at each new frame.  Is there a way to set some global variables or to do the imports only once outside the pre-frame script?

Jim

James H. Prestegard

Professor and GRA Eminent Scholar, Emeritus

Complex Carbohydrate Research Center

University of Georgia

Athens, Georgia, 30602, USA

706-542-6281