%%
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%%
%%  Example 5-10-9 on page 264.
%%
%%  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](3,3)
 \psline{{->}}(1,2.75)
 \psline[arrows=-),arrowscale=2](2,2.75)
 \psline[arrows={-]},arrowscale=2 3](2.75,2.75)
 \psline[arrows=->,arrowscale=3 5](2.75,2)
 \psline[arrows=-o,arrowscale=3](2.75,1)
\end{pspicture}

\end{document}