VMD-L Mailing List

From: Charles Moad (cmoad_at_indiana.edu)
Date: Mon Apr 11 2005 - 14:23:08 CDT

imagemagick == free

You can create a movie with customized delay with a command like:
>>> convert -delay 25 -ajoin *.png movie.mpg

delay is specified in milliseconds, and magick must be compiled with
mpeg support. Animated gifs are also another output option.

>>> convert -delay 10 -compress bzip -adjoin *.png movie.gif

- Charlie

Chang, Christopher wrote:
> There is also a very nice, inexpensive program (with a free trial period) called VideoMach, which can stitch together image files into a movie. Arbitrary delays can be inserted between frames, and there are a variety of output formats. The link is http://www.gromada.com .
>
> Chris
>
>
>>-----Original Message-----
>>From: owner-vmd-l_at_ks.uiuc.edu
>>[mailto:owner-vmd-l_at_ks.uiuc.edu]On Behalf
>>Of Marc Q. Ma
>>Sent: Monday, April 11, 2005 7:42 AM
>>To: Chaitanya Krishna A
>>Cc: vmd-l_at_ks.uiuc.edu
>>Subject: Re: vmd-l: mpg image speed
>>
>>
>>Hi Chaitanya,
>>
>>Your problem could be "no problem" if MPEG allows to insert delay
>>between frames when you make the movie. However, so far this
>>feature is
>>not available.
>>
>>You can freely insert any delay between frames if you make
>>animated gif
>>movie, another format the vmd movie maker supports. This can
>>make your
>>movie have the necessary delay between frames.
>>
>>If anybody knows how to insert delays into the MPEG movies, I would
>>like to hear that.
>>
>>Hope this helps.
>>
>>Marc
>>On Apr 10, 2005, at 2:01 AM, Chaitanya Krishna A wrote:
>>
>>
>>>
>>>Hi all,
>>>
>>>I have a small problem. I am not much into molecular
>>>dynamics yet. But I have just started writing my own
>>>coded to some simple simulations of Ar and a binary
>>>mixture.
>>>
>>>I am also quite new to using VMD.
>>>
>>>I am using VMD to play the trajectory of my 864 atom
>>>Ar system.
>>>
>>>The way I am doing it is as follows:
>>>After the simulation I have all the coordinates of all
>>>the 864 atoms for all the time steps sequentially in
>>>the xyz format. I am using babel to convert into the
>>>pdb format and then invoking VMD with the command
>>>$ vmd <pdb file name>
>>>Now it loads all the frames and then I use the movie
>>>maker to make the movie of the trajectory of the 864
>>>atoms. VMD makes an mpg movie.
>>>
>>>The problem is that when I play the mpg movie that VMD
>>>makes, it runs very fast before one can actually
>>>realise what is happening. I have been using xine to
>>>play the movie. It would be nice if someone can
>>>suggest how I can slow down the speed of the mpg
>>>movie.
>>>
>>>I would also like to know if there's any better way of
>>>making the movie different from the one that I
>>>described above.
>>>
>>>Thanks for any help and your time.
>>>Chaitanya.
>>>Indian Inst. of Science, India.
>>>
>>>
>>>
>>>__________________________________
>>>Do you Yahoo!?
>>>Yahoo! Personals - Better first dates. More second dates.
>>>http://personals.yahoo.com
>>>
>>
>>
>