[pstricks] slideshow

[Kirk Blazek]

Beamer commands like \only<2->{...} are fully compatible with pstricks. 
  Whether you include them with \include or inline, you can use these 
commands to make the different drawn elements be revealed slide by slide.

A very simple example:

\frame{
\begin{pspicture}(0,-0.5)(1,1)
\only<2->{\psline{->}(2,2.5)(2.5,-1.72)
\psline{->}(2,2.5)(2.75,0.4)}
\only<3->{\psline{->}(2.5,-1.72)(2.7,-1)
\psline{->}(2.75,0.4)(2.8,1)}
\end{pspicture}
}

This will have nothing drawn the first slide, two lines the second 
slide, then adds two more lines for the third.

Hope this helps.

-Kirk

Doris Wagner wrote:
> hi list,
> 
> I want to prepare slideshows for illustrating geometrical proofs,  
> using pstricks and -- if possible -- beamer.
> 
> I'd like to show a sequence of slides, growing step by step, for  
> example:
> 
> 1. slide: a point
> 2. slide: another point
> 3. slide: a line joining those points
> 
> ...
> 
> of course, the pictures I have in mind are a lot more complicated than  
> this example, and I don't want to have to repeat the hitherto existing  
> code for every new slide, especially because if at the end I want to  
> chance something (for example the label of the fist point), it woult  
> be quite stupid to copy and paste all the time.
> 
> so my question:
> 
> has anyone experiences with such sequences of slideshows? can it be  
> done with some include-file, where I could set marks and tell beamer  
> on slideshow XY to read the include-file only to mark XY, for example?
> 
> any suggestions would be welcome!
> 
> TIA
> d 
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