[pstricks] coordinates of nodes

[Herbert Voss]

John Frampton wrote:

> I have a diagram with several nodes at different heights, and a
> horizontal line below all of the nodes.  I would like to draw
> vertical lines from the nodes to the horizontal line.  If I could
> recover the coordinates of a node, the problem would be solved.
> Is that possible?  Is there another way to solve the problem?

you could try SpeicalCoor

Herbert

\documentclass[12pt,a4paper]{article}
\usepackage{pst-node}
\SpecialCoor
\begin{document}

\pnode(0,0){l1}\pnode(5,0){l2}
\pnode(0,4){A}\pnode(2,3){B}\pnode(3,1){C}\pnode(4,4){D}
\psline(l1)(l2)

\psset{linecolor=red}
\psline(A)(A|l1)\psline(B)(B|l1)\psline(C)(C|l1)\psline(D)(D|l1)

\end{document}


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