Consider the following MWE:
Code: Select all
\documentclass{article}
\usepackage{auto-pst-pdf,pst-3dplot}
\begin{document}
\begin{figure}
\centering
\begin{pspicture}(7,5)
\psset{arrows=<->}
\pstThreeDCoor[xMin=3,xMax=6,yMin=0,yMax=4,zMin=1,zMax=3]
\pstThreeDLine(3,4,1)(6,3,2)
\pstThreeDLine(6,3,2)(3,0,3)
\pstThreeDLine(3,0,3)(3,4,1)
\end{pspicture}
\end{figure}
\end{document}
Thank you in advance!