visualpython-users

[Visualpython-users] animation

[Bruce P. <bap...@te...>]

Is there any code available to save individual frames as bit maps (e.g. bmp 
files on windows or something more sophisticated such as gif files). The 
idea is that a sequence of these can be made into a movie-- both for 
portability and for instances when the real time performance of vpython is 
slow (I know you lose the interactivity, but in some cases it would be 
worth it).

Bruce Peterson
Terastat, Inc
Information Access Systems
Voice (425) 466 7344
Fax (206) 350 3685

Re: [Visualpython-users] animation

[Bruce S. <bas...@un...>]

The only thing I know of immediately available is the Pov-Ray export 
facility (see http://vpython.org home page). This module lets you export 
individual frames as Pov-Ray scene descriptions. Then you can use Pov-Ray 
(which is cross-platform freeware) to render the scenes (in glorious 
ray-traced glory). After that you could use some freeware program to stitch 
the frames together as a movie.

It would be nice to have a lighter-weight scheme for generating, say, a set 
of gifs.

Bruce Sherwood

At 02:43 PM 7/23/2002 -0700, Bruce Peterson wrote:
>Is there any code available to save individual frames as bit maps (e.g. 
>bmp files on windows or something more sophisticated such as gif files). 
>The idea is that a sequence of these can be made into a movie-- both for 
>portability and for instances when the real time performance of vpython is 
>slow (I know you lose the interactivity, but in some cases it would be 
>worth it).

RE: [Visualpython-users] animation

[jon s. <js...@so...>]

The Python Imaging Library has some simple and elegant routines that ought
to be applicable for this.
http://www.pythonware.com/products/pil/

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> -----Original Message-----
> From: vis...@li...
> [mailto:vis...@li...]On Behalf Of
> Bruce Sherwood
> Sent: Tuesday, July 23, 2002 9:06 PM
> To: Bruce Peterson; vis...@li...
> Subject: Re: [Visualpython-users] animation
>
>
> The only thing I know of immediately available is the Pov-Ray export
> facility (see http://vpython.org home page). This module lets you export
> individual frames as Pov-Ray scene descriptions. Then you can use Pov-Ray
> (which is cross-platform freeware) to render the scenes (in glorious
> ray-traced glory). After that you could use some freeware program
> to stitch
> the frames together as a movie.
>
> It would be nice to have a lighter-weight scheme for generating,
> say, a set
> of gifs.
>
> Bruce Sherwood
>
> At 02:43 PM 7/23/2002 -0700, Bruce Peterson wrote:
> >Is there any code available to save individual frames as bit maps (e.g.
> >bmp files on windows or something more sophisticated such as gif files).
> >The idea is that a sequence of these can be made into a movie-- both for
> >portability and for instances when the real time performance of
> vpython is
> >slow (I know you lose the interactivity, but in some cases it would be
> >worth it).
>
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>

Re: [Visualpython-users] animation

[Matthew K. <mak...@un...>]

I'm not sure if exporting to Pov-Ray first is absolutely necessary. 
There are software products out there that allow you to take screen caps 
or create videos from anything on your computer's screen, including 
presumably the VPython graphics window.  Try looking at:
<http://www.techsmith.com>
who make SnagIt for taking screen shots and Camtasia for making videos.

-Matt

Bruce Sherwood wrote:
> The only thing I know of immediately available is the Pov-Ray export 
> facility (see http://vpython.org home page). This module lets you export 
> individual frames as Pov-Ray scene descriptions. Then you can use 
> Pov-Ray (which is cross-platform freeware) to render the scenes (in 
> glorious ray-traced glory). After that you could use some freeware 
> program to stitch the frames together as a movie.
> 
> It would be nice to have a lighter-weight scheme for generating, say, a 
> set of gifs.
> 
> Bruce Sherwood
> 
> At 02:43 PM 7/23/2002 -0700, Bruce Peterson wrote:
> 
>> Is there any code available to save individual frames as bit maps 
>> (e.g. bmp files on windows or something more sophisticated such as gif 
>> files). The idea is that a sequence of these can be made into a 
>> movie-- both for portability and for instances when the real time 
>> performance of vpython is slow (I know you lose the interactivity, but 
>> in some cases it would be worth it).
> 
> 
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] animation

[Bruce S. <bas...@un...>]

I tried those tools and had a hard time getting what I really wanted, though
maybe I didn't use them properly. I think a better way might in fact be the
PIL module advertised in Jon Schull's note, which has a method to capture a
screen image and then manipulate it.

Bruce Sherwood

----- Original Message -----
From: "Matthew Kohlmyer" <mak...@un...>
To: <vis...@li...>
Sent: Wednesday, July 24, 2002 10:31 AM
Subject: Re: [Visualpython-users] animation


> I'm not sure if exporting to Pov-Ray first is absolutely necessary.
> There are software products out there that allow you to take screen caps
> or create videos from anything on your computer's screen, including
> presumably the VPython graphics window.  Try looking at:
> <http://www.techsmith.com>
> who make SnagIt for taking screen shots and Camtasia for making videos.
>
> -Matt
>