[chimera-dev] [Chimera-users] Motion of an atom

[Raju Purohit]

Thank you very much Eric. I will try this out.


On Tue, Jul 10, 2012 at 7:22 PM, Eric Pettersen <pett at cgl.ucsf.edu> wrote:

> Hi Raju,
> During the execution of a Python script, Chimera does not redraw the
> graphics screen until explicitly requested or when the script ends.  The
> simplest way to ask for a redraw is to execute the "wait 1" Chimera
> command, which you can do from Python with:
>
> from chimera import runCommand
> runCommand("wait 1")
>
> So if you embed that in your loop you should be able to see your atom
> move.  Frames are redrawn at a rate of 25 per second (though future
> versions of Chimera may allow faster redraw rates), so you may want to wait
> more than 1 frame if the atoms moves too fast.
> Alternatively, there is also a direct Python call to wait():
>
> from Midas import wait
> wait(1)
>
> FYI, there is another mailing list, chimera-dev, where
> programming-intensive questions like this one are more appropriate, so that
> the regular user's eyes don't glaze over. :-)
>
> --Eric
>
>                         Eric Pettersen
>                         UCSF Computer Graphics Lab
>                         http://www.cgl.ucsf.edu
>
> On Jul 10, 2012, at 9:07 AM, Raju Purohit wrote:
>
> Hello friends,
>
> I need some help here.
>
> I created a basic model having just an atom and set its coordinates as
> (0,0,0). Now I want to make it move along a certain path defined
> mathematically (say, along x axis) and I need to see it move. So I used a
> *for* loop. But I couldn't see and motion and soon realised that the loop
> is very quick in executing and thus I could see the atom at its
> last coordinates. So I tried to add delay of 0.5 seconds for each loop
> by importing *time* module and useing *time.sleep*. But still I couldn't
> see any motion and the coordinates of the atom is set only at the end of
> the *for* loop. I could not see the intermediate path. I am sure you
> people must have tried this earlier and this problem has a solution but I
> just couldn't figure it out.
>
> Can you please help me out?
>
> Thank you in advance.
>
> --
> Raju R.N.
> Third Year, B.Tech
> Mechanical Engineering
> National Institute of Technology Karnataka, Surathkal
>
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>
>
>
>


-- 
Raju R.N.
Third Year, B.Tech
Mechanical Engineering
National Institute of Technology Karnataka, Surathkal
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