<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  A DANTE-Edition example
%% 
%% 
%%  Copyright (C) 2011 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-solides3d}

\begin{document}
\begin{pspicture}(-4,-4)(4,5)
  \psset{Decran=20,viewpoint=100 50 20 rtp2xyz}
  \axesIIID[labelsep=5pt](0,0,0)(20,20,10)
  \psPoint(-4.79,2.06,0){C1}\psPoint(-4.79,15.76,0){Ox}\psPoint(8.43,5.57,0){C2}
  \psPoint(-14.14,3.34,0){H3}     \psPoint(14.14,-2.94,8.90){H6}
  \psPoint(14.14,-2.94,-8.90){H7} \psPoint(6.43,-16.29,0){H8}
  \psline(C1)(H3)\psline(C2)(H7)  \psline(C2)(H8)\psline(C1)(C2)
  \psline[doubleline=true](C1)(Ox)\psline(C2)(H6)
  \uput[r](H3){$\mathrm{H_1}$}    \uput[l](H6){$\mathrm{H_2}$}
  \uput[l](H7){$\mathrm{H_3}$}    \uput[l](H8){$\mathrm{H_4}$}
  \uput{0.25}[u](C1){$\mathrm{C_1}$} \uput{0.25}[d](C2){$\mathrm{C_2}$}
  \uput{0.25}[r](Ox){$\red\mathrm{O}$}
  \psdots[dotstyle=o,dotsize=0.3](H3)(H6)(H7)(H8)
  \psdots[dotsize=0.4](C1)(C2)\psdot[linecolor=red,dotsize=0.4](Ox)
\end{pspicture}
\end{document}
</pre></body></html>