%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 5-13-3 on page 281.
%% 
%%  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{207.83385pt}
\StartShownPreambleCommands
\usepackage{pstricks}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}[showgrid=true](3,3)
 \psline[linewidth=2pt,linecolor=blue,
   fillstyle=vlines](0,1)(2,3)(0,3)
 \pscustom{%
    \psline[linewidth=2pt,linecolor=blue,
      fillstyle=hlines](1,0)(3,2)(3,0)}
\end{pspicture}\qquad
\begin{pspicture}[showgrid=true](3,3)
 \psline[linewidth=2pt,linecolor=blue,
   fillstyle=vlines](0,1)(2,3)(0,3)
 \pscustom[linewidth=2pt,linecolor=blue,
   fillstyle=hlines]{\psline(1,0)(3,2)(3,0)}
\end{pspicture}
\end{document}