%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 5-13-7 on page 283.
%% 
%%  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{111.83385pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-plot}
\StopShownPreambleCommands
\begin{document}
\psset{unit=7mm}
\begin{pspicture}[showgrid=true](3,3)
 \pscustom[linecolor=red,fillcolor=lightgray,fillstyle=solid]{%
   \psplot{0}{2.6}{x RadtoDeg 2 mul sin 2 add}
   \pscurve(3,0.25)(2,0)(1,1)(0,0)}
\end{pspicture}
\\[20pt]
\begin{pspicture}[showgrid=true](3,3)
 \pscustom[linecolor=red,fillcolor=lightgray,fillstyle=solid]{%
   \psplot{0}{2.6}{x RadtoDeg 2 mul sin 2 add}
   \pscurve[liftpen=1](3,0.25)(2,0)(1,1)(0,0)}
\end{pspicture}
\\[20pt]
\begin{pspicture}[showgrid=true](3,3)
 \pscustom[linecolor=red,fillcolor=lightgray,fillstyle=solid]{%
   \psplot{0}{2.6}{x RadtoDeg 2 mul sin 2 add}
   \pscurve[liftpen=2](3,0.25)(2,0)(1,1)(0,0)}
\end{pspicture}
\end{document}