%% 
%%  PSTricks -- Grafik fuer TeX und LaTeX, 4. Auflage (1. Auflage 2004)
%% 
%%  Example 11-3-9 on page 117.
%% 
%%  Copyright (C) 2007 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.
%% 

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{129.7051pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-plot}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}[showgrid=true](3,3)
  \pscustom[fillcolor=lightgray,
      fillstyle=solid]{%
    \psplot{0}{3}{x 180 mul 1.57 div sin 2 add}
    \closepath
    \pscurve(3,1)(2,0)(1,1)(0,0)}
\end{pspicture}
\end{document}