%%
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%%
%%  Example 5-13-5 on page 282.
%%
%%  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{135.83385pt}
\StartShownPreambleCommands
\usepackage{pstricks}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}[showgrid=true](3,2)
 \pscustom[linecolor=red,linewidth=1.5pt]{%
   \psline(1,2) \psline(2,0) \psline(3,2)}
\end{pspicture}
\end{document}