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%%
%% A DANTE-Edition example
%%
%% Beispiel 02-08-1 on page 36.
%%
%% Copyright (C) 2010 Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%
% Show page(s) 1
\documentclass[size=11pt,style=simple]{powerdot}
\pagestyle{empty}
\setcounter{page}{6}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{animate,multido}
%-------------------- 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
\usepackage{animate,multido,pstricks-add}
\begin{document}
\begin{slide}{Animate}
\psset{xunit=\pstRadUnit,dashadjust=false}
\begin{animateinline}[controls,timeline=sinus.txt,begin={\begin{pspicture}(-0.5,-1.5)(6.6,2)},
end={\end{pspicture}}]{24}
\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}
\pscustom[xunit=1cm,fillcolor=blue!30,fillstyle=solid,linestyle=none,algebraic,dimen=inner]{%
\psplot{0}{\n\space DegtoRad}{sin(x)}
\psline(!\n\space DegtoRad 0)}
\psplot[xunit=1cm,linestyle=dashed,linecolor=black,algebraic]{0}{\n\space DegtoRad}{sin(x)}
\psdot[opacity=0.4,dotsize=3mm](!\n\space dup DegtoRad exch sin)
\psline[linestyle=dashed](!\n\space dup DegtoRad exch sin)(!\n\space DegtoRad 0)}
\end{animateinline}
\end{slide}
\end{document}
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