[pstricks] gsave grestore

[Herbert Voss]

Alain Liétard wrote:

> I don't understand what mean these commands.

the same as in PostScript. Look at the following example.
It shows only one example for the use of \gsave and \grestore

Herbert


\documentclass{article}
\usepackage{pstricks}
\usepackage{pst-plot}
\parindent=0pt

\begin{document}

\begin{pspicture}(3,3)
   \pscustom[linewidth=2pt]{%
     \psplot{0}{3}{x 180.0 mul 1.5 div sin 1.5 mul 1.5 add}
%    \gsave
       \psline(3,3)(0,3)%
       \fill[fillcolor=lightgray,fillstyle=solid]
%    \grestore
   }
\end{pspicture}

\bigskip
\begin{pspicture}(3,3)
   \pscustom[linewidth=2pt]{%
     \psplot{0}{3}{x 180.0 mul 1.5 div sin 1.5 mul 1.5 add}
     \gsave
       \psline(3,3)(0,3)% this line is now not drawn
       \fill[fillcolor=lightgray,fillstyle=solid]
     \grestore
   }
\end{pspicture}

\end{document}



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