Metapost animation

[Michal Kvasnicka <quasar@econ.muni.cz>]

Good evening.

First of all I want to thank to Mr. Hagen for his last answer. I will 
check your last code of balanced columnsets at home (with the newest 
ConTeXt). As for your correcting code for ordinary collumns, I have 
tried it with three different types of my documents, and it worked well. 
Maybe this is the final solution of the problem. I will try it with more 
documents and let you know, anyway.

Now to my next question. I have seen a great thing: Metapost pictures 
were animated (probably with the JavaScript code). You can found some 
examples here:
    http://www.math.muni.cz/~plch/nkpm/nradanm6.pdf
    http://www.math.muni.cz/~plch/nkpm/nradanm8.pdf
(Just click on the `Spustit animaci' button.)

Is it possible to do it simply in the ConTeXt? Of course I may break 
down the mechanism of widgets and write my own JavaScript (I don't know 
how to do timing), but isn't there some special macro for animating 
series of figures? It would be great.

If so, is Acrobat Reader fast enough to simulate this way the nice 
feature of MS PowerPoint---curves and shapes that are drawn by pieces, 
or that appear somewhere and then go to its final location? (This is 
quite instructive in economics, because you can easily notice which 
curve is drawn first, what second, and so on.) How can I do it?

With many greetings and thanks
Michal Kvasnicka