dw2.tex

\documentclass{article}
\usepackage{pst-solides3d,pst-node,pst-plot,multido,url}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{colortbl}
\usepackage{array}
\usepackage[a4paper,bottom=2.5cm,top=2cm]{geometry}
%%\usepackage[frenchle]{babel}
\makeatletter
\pagestyle{empty}
%% \title{\texttt{pst-solides3d} :\\
%%        Test 1}
%% \date{\today }
\begin{document}
%\maketitle
 
%\psset{lightsrc=10 20 30,viewpoint=50 20 30 rtp2xyz}
%\psset{viewpoint=50 20 30 rtp2xyz}
 
%\section {Coupe de pyramide par des plans parallèles}
 
\begin{center}
%\psset{unit=0.75}
\psset{viewpoint=50 -20 30 rtp2xyz,Decran=50}
\begin{pspicture*}(-5,-4)(6,9)
\psSolid[object=grille,
   base=-5 5 -5 5,
   linecolor=gray]
%% create the pyramid with base area in xy-plane 
\psSolid[object=new,
   sommets=
      0 -2 0 %% 0
      -2 0 0 %% 1
      0 4 0  %% 2
      4 0 0  %% 3
      0 0 5, %% 4
faces={
   [3 2 1 0]
   [4 0 3]
   [4 3 2]
   [4 2 1]
   [4 1 0]
},
%% %% to create your pyramid, uncomment follow lines :
%% num=all,
%% show=all,
   action=draw,
   intersectiontype=0,
   intersectionplan={
      [0 0 1 -1]
      [0 0 1 -2]
   },
   intersectionlinewidth=1 2,
   intersectioncolor=(bleu) (rouge),
]
\end{pspicture*}
\end{center}
 
 
\end{document}