From: Alexander A. Vakhrushev (
Date: Fri Sep 26 2008 - 22:41:50 CDT

Hi Qian!

Try to add after frame selection command

    # get the protein atoms
    set sel [atomselect $index "protein"]
    $sel frame $name

following line, updating your selection

    $sel update

2008/9/27, <>:
> Hi,
> I am using the script (sscache.tcl) to compute the secondary structures of a
> protein in a trajectory. I follow the instructions from
> I wrote a tcl script as an attached and tried to execute it on a trajectory,
> but it only showed the results of the last frame. I tried my script using
> different modules (functions) but it looped correctly, so I am quite sure
> that I have been including the loop correctly.
> Could you please help me take a look at this script and see if there is
> something that I could have overlooked?
> Thank you.
> Sincerely,
> Qian

Best regards,
Dr. Alexander Vakhrushev
Institute of Applied Mechanics
Dep. of Mech. and Phys.-Chem.
of heterogeneous media
UB of Russian Academy of Sciences
34 T. Baramzinoy St.
Izhevsk, Russia 426067
С уважением,
    Вахрушев Александр Александрович
к.ф.-м.н., с.н.с.
Институт прикладной механики
Уральского Отделения
Российской Академии Наук
426067, г. Ижевск
ул. Т. Барамзиной 34