[pstricks] Loop controlled by postscript variable

[Poul Riis]

How can I make a postscript variable control the number of repetitions of
a loop?

In the example below it should be the variable 'numberofnumbers',
something like

\psLoop{numberofnumbers}{
		\pstVerb{/ylow yhigh def /yhigh yhigh somenumbers 1 get add def}
		\psframe*[linecolor=Cornsilk1](!0 ylow)(!10 yhigh)
		\psframe[linecolor=black](!0 ylow)(!10 yhigh)
}

(which does not work)

Poul Riis




\documentclass{article}
\usepackage{amsmath}
\usepackage[x11names]{xcolor}
\usepackage{pstricks-add}
\usepackage{multido}

\begin{document}
	\pstVerb{/somenumbers [20 10 15 30] def
		     /numberofnumbers somenumbers length def
		     /ylow 0 def
		     /yhigh somenumbers 0 get def}
		    
	\begin{psgraph}[xAxisLabel=$(1)$,yAxisLabel=$(2)$,ticksize=0
0,linewidth=0.5pt,labels=none]{->}(0,0)(0,0)(100,100){10cm}{10cm}
		\psframe*[linecolor=Cornsilk1](!0 ylow)(!10 yhigh)
		\psframe[linecolor=black](!0 ylow)(!10 yhigh)
		
		\pstVerb{/ylow yhigh def /yhigh yhigh somenumbers 1 get add def}
		\psframe*[linecolor=Cornsilk1](!0 ylow)(!10 yhigh)
		\psframe[linecolor=black](!0 ylow)(!10 yhigh)
		
		\pstVerb{/ylow yhigh def /yhigh yhigh somenumbers 1 get add def}
		\psframe*[linecolor=Cornsilk1](!0 ylow)(!10 yhigh)
		\psframe[linecolor=black](!0 ylow)(!10 yhigh)
	\end{psgraph}
\end{document}

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