pie_01.tex

\documentclass{article}
\usepackage{pst-solides3d}
\begin{document}
\pagestyle{empty}
 
 
\begin{pspicture}(-5,-5)(5,5)
\psset{Decran=35}
\psSolid[object=pie,
   h=1,       %% hauteur
   r=1,       %% rayon
]%
\end{pspicture}
 
\end{document}