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%%
%% A DANTE-Edition example
%%
%% Example 33-03-16 on page 692.
%%
%% Copyright (C) 2011 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[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}
\usepackage{pst-optic}
\begin{document}
\psset{unit=0.5}\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]}
\makeatletter \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}}
\makeatother
\end{pspicture}
\end{document}
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