\documentclass[a4paper]{article} \usepackage{pst-torusmagic} \usepackage{pst-eucl} \usepackage[garamond]{mathdesign} \renewcommand{\ttdefault}{lmtt} \pagestyle{empty} \begin{document} \psset[pst-solides3d]{viewpoint=40 30 10,SphericalCoor,Decran=30} \begin{pspicture}(-6,-3)(6,3) \psframe*[linecolor=gray](-6,-3)(6,3) \psTorusMagic[R=3,r=1.5, angularAperture=90, linecolor=white,linewidth=0.5\pslinewidth]% \end{pspicture} \end{document}