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+%%
+%% Ein Beispiel der DANTE-Edition
+%%
+%% 7. Auflage
+%%
+%% Beispiel 32-03-12 auf Seite 730.
+%%
+%% Copyright (C) 2016 Herbert 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[]{exaarticle}
+\pagestyle{empty}
+\setlength\textwidth{352.81416pt}
+\setlength\parindent{0pt}
+%StartShownPreambleCommands
+\usepackage{pst-optic} \psset{unit=0.5}
+%StopShownPreambleCommands
+\begin{document}
+\makeatletter\begin{pspicture}(-1.5,-5.5)(10,5.5)
+ \rput(0,0){\beamLight[drawing=false,mirrorDepth=4.75,mirrorWidth=0.1,
+ mirrorHeight=10,linecolor=lightgray]}
+ \pst@getcoor{Focus}\pst@tempf \psset{linecolor=red}
+ \multido{\n=60+5}{18}{\mirrorCVGRay[linecolor=red,mirrorDepth=4.75,
+ mirrorHeight=10](Focus)(! /XF \pst@tempf pop \pst@number\psxunit div def
+ \n\space cos XF add \n\space sin neg){Endd1}
+ \psOutLine[arrows=->,length=.25](Endd1)(Endd1''){Endd2}
+ \mirrorCVGRay[linecolor=red,mirrorDepth=4.75,mirrorHeight=10](Focus)(!
+ /XF \pst@tempf pop \pst@number\psxunit div def
+ \n\space cos XF add \n\space sin ){End1}
+ \psOutLine[arrows=->,length=.25](End1)(End1''){End2}}
+\end{pspicture} \makeatother
+\end{document}