%% 
%%  Ein Beispiel der DANTE-Edition
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%%  7. Auflage
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%%  Beispiel 22-06-97 auf Seite 468.
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%%  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
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{193.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-solides3d}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}(-3,-1.5)(3,5.5)
\psset{unit=0.5,lightsrc=40 50 50,viewpoint=18 65 30 rtp2xyz,solidmemory,
       linewidth=.2pt}
\psSolid[object=plan,definition=equation,args={[1 0 0.15 0] 90},base=-2 2 -0.5 4,
  fillcolor=blue!20,name=E1,ngrid=30 30,action=none]
\psSolid[object=plan,definition=equation,args={[1 1 0 0]},base=-2 2 -0.5 3.5,
  fillcolor=green!20,name=E2,ngrid=20 20,action=none](0,0,3)
\psSolid[object=plan,definition=equation,args={[0 1 0 0] 180},base=-2 2 -0.5 3.5,
  fillcolor=red!20,name=E3,ngrid=20 20,action=none]
\psSolid[object=fusion,base=E1_s E2_s E3_s]
\psProjection[object=texte,fontsize=50,text=Ja,plan=E3](-1,2)
\psProjection[object=texte,fontsize=50,text=n,plan=E1](1,2)
\psProjection[object=texte,fontsize=50,text=a,plan=E2,phi=180](-1.7,1.4)
\end{pspicture}
\end{document}
