Don't you hate it when users outsmart the programmer?
This is a tough one. The only solution I can think of is not memory
efficient, but it should work:
Load each frame of the movie into a separate segment or chain. This
should allow you to independently address each frame...
# assume that the segment is '' (empty) in the PDB files...
load frame1.pdb,mov
alter (segi ''),segi='1'
load frame2.pdb,mov
alter (segi ''),segi='2'
etc.
You can use Python to make a loop by switching to the Python API as
follows:
from pymol import cmd
for a in range(1,30):
cmd.load("frame%d.pdb"%a,"mov")
cmd.alter("(segi '')","segi='%d'"%a)
Then you should be able to say:
color red,/mov/1//101/ca
color red,/mov/2//101/ca
color red,/mov/3//101/ca
Good luck,
Warren
--
mailto:war...@sunesis.com
Warren L. DeLano, Ph.D.
Informatics Manager
Sunesis Pharmaceuticals, Inc.
341 Oyster Point Blvd.
S. San Francisco, CA 94080
(650)-266-3606 FAX:(650)-266-3501
> -----Original Message-----
> From: Nat [mailto:nathaniel.ech...@yale.edu]
> Sent: Wednesday, January 23, 2002 7:39 PM
> To: pymol-users@lists.sourceforge.net
> Subject: [PyMOL] movie frame alterations
>
>
>
> Is it possible to make changes to the way individual frames
> are rendered?
> Specifically, I'm writing a Python script (translated
> literally from C,
> but I'm too tired to learn the Python API right now) to evaluate bond
> "quality" and highlight the distorted regions in a frame of a protein
> morph. However, since the distortions tend to come in the middle of a
> morph, I want to examine each frame alone and apply highlighting only
> where applicable.
>
> Right now, treating individual frames as part of an object (i.e. for a
> movie) means that calls like 'color red, 101/ca' are applied to every
> state. Is there some way to only run that command on one state? In
> simple terms, I'm trying for a movie that changes color
> during its course
> to indicate bond quality. It's much easier to do this if I
> can use movie
> objects, especially since it would be nice to be able to run this
> interactively. Otherwise, I'm going to just create a very
> long pml file
> with all the commands.
>
> thanks,
> Nat
>
>
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