That is entirely up to you. The forth paragraph in the help explains how the three atoms in the index are used to generate the coordinate system.
Best idea with anything like this, have a play, see what comes out, see if it is what you want, then try again. Play with it like that will also help get further understanding of what is going on. Catch ya, Dr. Dallas Warren Department of Pharmaceutical Biology and Pharmacology Pharmacy and Pharmaceutical Sciences, Monash University 381 Royal Parade, Parkville VIC 3010 [email protected] +61 3 9903 9167 --------------------------------- When the only tool you own is a hammer, every problem begins to resemble a nail. _______________________________________________ gmx-users mailing list [email protected] http://www.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to [email protected]. Can't post? Read http://www.gromacs.org/mailing_lists/users.php

