\documentclass[a4paper]{article}
\usepackage{pst-solides3d}
\pagestyle{empty}
\begin{document}
\psset{lightsrc=80 30 30,viewpoint=40 40 20 rtp2xyz,Decran=100,linewidth=1.5pt}
\begin{pspicture}(-4,-4)(4,4)
\psframe(-4,-4)(4,4)
\psSolid[object=datfile,file=geodedual42]
\end{pspicture}
\end{document}