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%%
%% The LaTeX Graphics Companion, 2ed (first printing May 2007)
%%
%% Example 6-5-18 on page 396.
%%
%% Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss
%%
%% 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.
%%
\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{243.59894pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-3d}
\StopShownPreambleCommands
\begin{document}
\psset{unit=.3cm}
\begin{pspicture}(-5,-3)(4,3)
\psset{viewpoint=1 1 0.5}
\ThreeDput[normal=0 0 1]{\psgrid(-3,-3)(6,6)}
\ThreeDput[normal=-1 0 0](0,4,0){\psframe*[linecolor=blue](4,4)}
\end{pspicture}\hfill
\begin{pspicture}(-5,-3)(4,3)
\psset{viewpoint=1.5 1 0.5}
\ThreeDput[normal=0 0 1]{\psgrid(-3,-3)(6,6)}
\ThreeDput[normal=-1 0 0](0,4,0){\psframe*[linecolor=blue](4,4)}
\end{pspicture}
\end{document}
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