line_01.tex

\documentclass[a4paper]{article}
\pagestyle {empty}
\usepackage{pstricks}
\usepackage{pst-solides3d}
 
\begin{document}
 
 
\psset{viewpoint=50 40 30 rtp2xyz,Decran=50}%
\begin{pspicture}(-6,-4)(7,12)
\psset{solidmemory} %% do not forget !
\codejps{
%% definition de la ligne 1
/L1 [
   -0.5 -4 8.775 
   4.25 5.5 8.775
] def
%% la meme ligne, avec une translation
/L2 L1 {1 1 1 addv3d} papply3d def
}
\psSolid[object=line,
args=L1 aload pop,
linewidth=1.5pt,linestyle=dashed,linecolor=blue]
\psSolid[object=line,
args=L2 aload pop,
linewidth=1.5pt,linestyle=dashed,linecolor=red]
\end{pspicture}
\end{document}