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%%
%% 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{190.324pt}
\setlength\parindent{0pt}
\usepackage{pst-3d}
\makeatletter
\def\xyEbene#1{%
\ThreeDput[normal=0 0 1](0,0,0){% xy-Ebene
\psgrid(0,0)(#1,#1)%
\psline{->}(0,0)(0,#1) \psline{->}(0,0)(#1,0)
\ifdim\psk@gridlabels pt>\z@
\uput[180]{0.2}(0,#1){$y$} \uput[-90]{0.2}(#1,0){$x$}%
\fi
}}
\def\xzEbene#1{%
\ThreeDput[normal=0 -1 0](0,0,0){% xz-Ebene
\psgrid(0,0)(#1,#1)%
\psline{->}(0,0)(0,5) \psline{->}(0,0)(#1,0)
\ifdim\psk@gridlabels pt>\z@
\uput[180]{0.2}(0,#1){$z$} \uput[-90]{0.2}(#1,0){$x$}%
\fi
}}
\def\yzEbene#1{%
\ThreeDput[normal=1 0 0](0,0,0){% yz-Ebene
\psgrid(0,0)(#1,#1)%
\psline{->}(0,0)(0,#1) \psline{->}(0,0)(#1,0)
\ifdim\psk@gridlabels pt>\z@
\uput[180]{0.2}(0,#1){$z$} \uput[-90]{0.2}(#1,0){$y$}%
\fi
}}
%
\def\DreiDKOSystem{\@ifnextchar[{\DreiDKOSystem@i}{\DreiDKOSystem@i[]}}
\def\DreiDKOSystem@i[#1]#2{{%
\psset{#1}%
\xyEbene{#2}\xzEbene{#2}\yzEbene{#2}}}
\makeatother
\StartShownPreambleCommands
\usepackage{pst-3d}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}(-4,-2.25)(2.25,2.75)
\psset{unit=0.7,viewpoint=1 1.5 0.5,
viewangle=-30}
\DreiDKOSystem[subgriddiv=0,
gridcolor=black!40]{5}
\ThreeDput(0,0,0){%
\psframe*[linecolor=gray!20](4,4)}
\ThreeDput(2,2,0){\Huge Unten}
\end{pspicture}
\end{document}
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