How to make animated gifs?

[John B. Thoo]

On Saturday, May 10, 2003, at 08:26  AM, John B. Thoo wrote:

> how do I make an animated gif from a collection of .png files?

Thanks to Dave Tinker, Dan Frakes, and Stephen Hart for their very 
helpful discussion and suggestions.  Here's my first attempt:

<http://ms.yuba.cc.ca.us/math/splits.gif>

Boring details
--------------
The graphs were created in Octave <http://www.octave.org> and saved as 
.png files.  Then the Gimp was used to resize the graphs; the resized 
graphs were saved as .xpm (X11 pixmap) files.  The .xpm files were then 
(batch) converted to .gifs using xpmtoppm --> ppmtogif.  Last, gifsicle 
<http://www.lcdf.org/~eddietwo/gifsicle> was used to turn the .gif 
files into an animated gif.

Question: If PNG was to replace (or at least substitute for) GIF, are 
there animated pngs?

Thanks again to all.

---John.