Please see
Code: Select all
\documentclass{article}
\usepackage{pstricks,pst-node,pst-plot,pst-circ}
\begin{document}
\newrgbcolor{GridColor}{0.8 0.8 0.8}%
\begin{pspicture}(0.898618,0.883041)(3.023041,3.046784)%
\newrgbcolor{purple}{100 55 155}
\psline[plotstyle=line,linejoin=1,showpoints=true,dotstyle=*,dotsize=110pt,linestyle=none,linewidth=3pt,linecolor=purple]
(1.000000,1.000000)(2.000000,2.000000)(3.000000,3.000000)
\end{pspicture}
\end{document}
Cheers,
Niles.