[pstricks] Using \nccurve with Postscript coordinates inside \pscustom

[Herbert Voss]

Am 30.11.2011 16:16, schrieb Christoph Bersch:

> I want to use \nccurve with Postscript coordinates inside \pscustom.
> Using \pccurve does not work, because inside \pscustom no new nodes can
> be defined with \pnode (as is done internally in \pccurve), the
> following one does not draw any curve:
>
> \documentclass{article}
> \usepackage{pst-node}
> \begin{document}
> \begin{pspicture}[showgrid=true]
> \pscustom{\pccurve(! 1 1)(!3 3)}%
> \end{pspicture}
> \end{document
>
> This is a heavily simplified version of the original problem. There is
> no way to define the nodes outside the \pscustom scope.
>
> Is there any viable solution for my problem?

Maybe this helps:

\documentclass{article}
\usepackage{pst-node}
%/NewNode {
   % on stack: { x y } boolean /N at name type /NodeScale {} def InitXnode

\begin{document}

\begin{pspicture}[showgrid](10,10)
   \pscustom[linecolor=red,linewidth=2pt]{%
     \moveto(0,0)
     \code{ tx at NodeDict begin {1 1 0.292 div exch 0.292 div exch neg
          } false /N at A 10 {InitPnode} /NodeScale {} def NewNode end }
     \code{ tx at NodeDict begin {10 10 0.292 div exch 0.292 div exch neg
          } false /N at B 10 {InitPnode} /NodeScale {} def NewNode end }
     \nccurve{A}{B}
   }
\end{pspicture}

\end{document}

For \pccurve(A)(B) you have to change the names to /N@@@A and /N@@@B

Herbert