timothy driscoll schrieb:

at 7.35p EDT on 2004 February 25 Wednesday Miguel Howard said:



Q: In Chime, can you only show one model, or can you show several


select (model=1,model=2,model=3)
wireframe 0.3


:-) To my way of thinking, this is showing all of the models ... but
some of them just happen to be turned off.



different perspectives, eh? :-)

so from your perspective, I would say Chime can only 'show' all models,
though it can 'display' various combinations of models.


Huh? You said "Chime can only 'show' all models" ...

But can't I also say

show model 1

As an alternate mechanism of restricting the rendering to a single model?



sorry - this does not work in Chime.

show model
simply messages a list of the model numbers in the file. it does not affect
display or selection at all. (adding a number does not affect this.)


in RasMol2.7.2.1 the show command reports various information, but a parameter model is not implemented




There are two different mechanisms for displaying the first model of a
multi-model file:

 load someMultiModel.pdb
 show model all; restrict model=1; wireframe .3

OR
 load someMultiModel.pdb
 select *; wireframe .3; show model 1


Please confirm whether or not this is true.




no, just mech 1 works.

when a multi-model file is loaded, Chime displays all models in wireframe cpk
color by default. 'show model' does not change this; the only way to affect
the display of a model on screen is via restrict, or select combined with a
rendering command (like wireframe). RasMol 2.7 may work differently...


it is just the same in RasMol2.7.2.1 use restrict and select to alter rendering of individual MODELs

In the animation of a reaction like:
A--B C ---> A---B---C ---> A B--C

When you load the structures as wireframe and then set 'wireframe 0.1'
within the first frames of the animation, sometimes the bond B---C is
shown as 'wireframe 0' because the bond wasn't formed when the
wireframe-command was given.





if we want to do something like that, we need a resume command which is a restrict which does not forget the rendering style
# do some rendering
select *
wireframe 0.1
select ligand and model>2
cpk
select nucleic and (*/1 or model>6)
wireframe 0.5
# animation
anim on
resume */1
delay 0.3
resume */2
delay 0.3
...
loop


but then it would be easier to do something like this
# animation list of selections loopmode frametime
anim qw(*/1 */2 */3 */4 */5 */6 */7 */8 */9&(nucleic|hetero) */10&(nucleic|hetero) */11&(nucleic|hetero) ) rock 0.3


(but this is not compatible :-)

Q: In the existing version of Chime, are there commands to manipulate the
individual atoms in the individual frames of a multi-frame .xyz file?


I never used .xyz files with chime.
PDB files are used as "poor mans animations" using 10 frames as MODELs instead of trajectories of 200.
http://www.umass.edu/microbio/chime/explorer/morfdoc.htm
I consider vmd the best program for movie creating out of trajectories
http://www.ks.uiuc.edu/Research/vmd/
and how they implemented animate (never used, but the GUI)
http://www.ks.uiuc.edu/Research/vmd/current/ug/node106.html


Regards, Jan



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