scalebox

[Denis Girou]

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>>>>> "Bernd.Brandt" == Bernd Brandt <bernd at balaena.bio.vu.nl> writes:

    Bernd.Brandt> I have a question regarding \scalebox and PSTricks.

    Bernd.Brandt> ...

    Bernd.Brandt> I read it was best to first load pstricks, then graphics, as to overrule pstricks \scalebox command:

    Bernd.Brandt> \usepackage {pstricks, pst-node}
    Bernd.Brandt> \usepackage {graphics}

    Bernd.Brandt> However, this results in the following error on this pspicture:

    Bernd.Brandt> \begin{pspicture}(0,0)(2,2)\showgrid
    Bernd.Brandt> \psline[linewidth=1pt, linecolor=gray]
    Bernd.Brandt> 	{<->}(0.5,0)(0,1)(1,1.5)(1.5,1)(.5,.5)
    Bernd.Brandt> \end{pspicture}

    Bernd.Brandt> ! Undefined control sequence.
    Bernd.Brandt> \GenericError  ...                                
    Bernd.Brandt>   #4  \errhelp \@err@     ...
    Bernd.Brandt> l.124 ^^I{<->}
    Bernd.Brandt>               (0.5,0)(0,1)(1,1.5)(1.5,1)(.5,.5)

  Well, it is a strange case!

  Problem is here:

\psline[linewidth=1pt,linecolor=gray]
                                ^^^^

  When using the `graphics/graphicx' packages, there is an incompatibility
with PSTricks which doesn't allow to use the PSTricks color interface.
With `graphics' you must use also the `color' package if you use colors
(in any case it is always the best thing to do...) - of course you must load
`pstcol' to "truly" load `color' with PSTricks.

  I don't enough know the code of `graphics' to be able to give you the
technical explanation.

\documentclass{article}

% There is an incompatibility with the `graphics/graphicx' packages when using
% colors : use `pstcol' in place of `pstricks'
% \usepackage{pstricks,pst-node}

\usepackage{pstcol,pst-node}
\usepackage{graphics}

\pagestyle{empty}

\begin{document}

\psline[linecolor=gray](1,1)

\end{document}

  Thanks for the report!

  P.S. Bernd also tell me privately that concerning his other question of
triangles/diamonds/etc. nodes of the same size, the problem was analog to the
one with circle nodes, so that \makebox is also the solution (I like this kind 
of problems which disappear by themselves...)

D.G.

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