\documentclass{article} \usepackage{pstricks} \usepackage{pst-3dplot} \parindent=0pt \pagestyle{empty} \begin{document} \begin{pspicture}(-3,-1.5)(3,1.5) \psset{Beta=15,linecolor=blue} \pstThreeDCoor[drawing=false] \pstThreeDBox(-1,-2,-1)(2,0,0)(0,4,0)(0,0,2) \pstThreeDLine[linestyle=dashed,linecolor=red](-1,0,0)(1,0,0) \pstThreeDLine[linecolor=red,linewidth=1.5pt,arrows=->](1,0,0)(4,0,0) \pstThreeDPut(4.2,0,0){x} \pstThreeDLine[linestyle=dashed,linecolor=red](0,-1,0)(0,2,0) \pstThreeDLine[linecolor=red,linewidth=1.5pt,arrows=->](0,2,0)(0,4,0) \pstThreeDPut(0,4.2,0){y} \end{pspicture} \end{document}