VMD-L Mailing List

From: Chola Regmi (cholaregmi_at_gmail.com)
Date: Fri Jan 11 2013 - 22:19:58 CST

I am able to solve the problem by doing
sel_sel_angle_frames 0 "myfirstselection" "mysecondselection" but still
have no idea why it doesn't work with $seltext1 and $seltext2

On Thu, Jan 10, 2013 at 11:45 AM, Chola Regmi <cholaregmi_at_gmail.com> wrote:

> Hi
> I need to find the angle between two domains of my selection from
> trajectory. I used the script posted by Justin Gullingsrud.*
> **http://www.ks.uiuc.edu/Research/vmd/mailing_list/vmd-l/att-2279/fit_angle.tcl
>
>
> When I used sel_sel_angle it works fine but when I tried to use
> sel_sel_angle_frames I got error message as
> atomselect: cannot parse selection text: atomselect0
> I am using VMD 1.9.1 and the way I used the script is;
> First I loaded my psf and dcd files in vmd
>
> In vmd TkConsole I wrote
>
> source fit_angle.tcl
> set seltext1 [atomselect top "myfirstselection"]
> **set seltext2 [atomselect top "mysecondselection"]*
> sel_sel_angle_frames 0 $seltext1 $seltext2 // here 0 is my mol-id of
> top molecule
>
> then I got error:* atomselect: cannot parse selection text: atomselect0
>
> If I do sel_sel_angle $seltext1 $seltext2 I got numerical values means it
> works for single frame.
> Can any one help me?
> Thank you
>
> Chola Regmi
> Florida International University
> Miami, FL
> *