[pstricks] draw animation by tikZ

[Herbert Voss]

Alexander Grahn schrieb:
> Here is a somewhat improved example, making use of an animation
> timeline `sinus.txt' written on-the-fly, which results in a smaller
> PDF file:

and the same with PSTricks

Herbert


\documentclass{article}
\usepackage{animate}
\usepackage{pstricks-add}
\usepackage{multido}
\begin{document}
  %-------------------- write timeline file ---------------------%
  \newwrite\TimeLineFile
  \immediate\openout\TimeLineFile=sinus.txt
  \immediate\write\TimeLineFile{::0x0,1}%
  %remaining frames: overlay filled circle at its current postion
  \multido{\i=2+1}{90}{%
    \immediate\write\TimeLineFile{%
      ::\i % put filled circle on top
  }}
  \immediate\closeout\TimeLineFile
  %------------------- assemble animation -----------------------%
  \psset{xunit=\pstRadUnit}
  \begin{animateinline}[controls,timeline=sinus.txt,
    begin={\begin{pspicture}(-0.5,-1.5)(6.6,2)},
    end={\end{pspicture}}]{9}
    %---- static material: axes, labels, curve ----%

\psaxes[trigLabels,trigLabelBase=3]{->}(0,0)(-2mm,-1.5)(6.5,1.5)[t,-90][$y=\sin(t)$,0]
    \psplot[xunit=1cm,linestyle=dashed,algebraic]{0}{\psPiTwo}{sin(x)}
    \newframe
    \multiframe{91}{n=0+4}{\psset{xunit=1cm,linecolor=blue}
      \psdot[dotsize=3mm](!\n\space dup DegtoRad exch sin)
      \psline[linestyle=dashed](!\n\space dup DegtoRad exch
sin)(!\n\space DegtoRad 0)
    }
  \end{animateinline}
\end{document}