\documentclass{article} \usepackage[dvipsnames,svgnames]{pstricks} \usepackage{pst-solides3d} \begin{document} \pagestyle{empty} \definecolor{Tan}{cmyk}{0.14,0.42,0.56,0} \psset{lightsrc=30 90 30,unit=0.75} \begin{pspicture}(-6,-6)(6,6) \psset{viewpoint=100 70 15 rtp2xyz,Decran=100} \psSolid[object=grille,base=-7 7 -4 4,action=draw*,linecolor=red](0,0,-4) \psSolid[object=new, incolor=yellow!50,hue=0 0.7 0.5 1,hollow,linewidth=0.5\pslinewidth, sommets= (sommets_unionspheres.dat) run, faces={(faces_unionspheres.dat) run}]% \gridIIID[Zmin=-4,Zmax=4](-7,7)(-4,4) \end{pspicture} \end{document}