<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  Ein Beispiel der DANTE-Edition
%% 
%% 
%%  Copyright (C) 2010 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-solides3d}
\StopShownPreambleCommands
\begin{document}
\psset{lightsrc=10 20 30,viewpoint=50 60 25 rtp2xyz,Decran=25}
\begin{pspicture}(-5,-2)(3,4)
\defFunction{G}(t){ t cos 2 mul }{ t sin 2 mul }{}
\psSolid[object=grille,base=-6 6 -4 4,action=draw,linecolor=black!20]
\psSolid[object=prisme,h=8,fillcolor=yellow!20,RotX=90,hollow,% zeige Innenteil
  ngrid=8,incolor=red!30,resolution=19,% fÃ¼r courbeR2+
  base=2 0 3 0 3 3 -3 3 -3 0 -2 0 % x y ...
       180 0 {G} CourbeR2+](0,4,0)
\axesIIID[showOrigin=false](3,1.5,3)(5.5,5,5.5)
\psSolid[object=grille,base=-3 3 0 3,RotX=90,action=draw](0,4,0)
\end{pspicture}
\end{document}
</pre></body></html>