[pstricks] enlarge psframe size in pspicture* environment

[Michael Sharpe]

On Aug 29, 2010, at 7:59 PM, mathias legrand wrote:

> Hi all,
> 
> using pstricks, I would like to do what follows:
> 
> \begin{figure}[h]\centering
> \def\Xmax{4}
> \def\Xmin{-4}
> \def\Ymax{1}
> \def\Ymin{-1}
> \begin{pspicture*}(\Xmin,\Ymin)(\Xmax,\Ymax)
> \psframe[fillstyle=solid,fillcolor=gray!15](1.1\Xmin,1.1\Ymin)(1.1\Xmax,1.1\Ymax)
> \end{pspicture*}
> \end{figure}
> 
> 
> It seems that the 1.1\Xmin and others are not correct.
> Is there a strategy to perform something similar?
> Thank you

You can use a construction from pst-node (though the result might not what you really want):

\begin{pspicture*}(\Xmin,\Ymin)(\Xmax,\Ymax)
\pnode(\Xmin,\Ymin){P}\pnode(\Xmax,\Ymax){Q}
\nodexn{1.1(P)}{P1}\nodexn{1.1(Q)}{Q1}
\psframe[fillstyle=solid,fillcolor=gray!15](P1)(Q1)
\end{pspicture*}