Kapitel/Chapter 22

"Grafik mit PSTricks"/"Graphics with PSTricks"

Kapitel/Chapter 22

Abschnitt/Section 22.6 -- pst-solides3d

Begrenzung einer 3d-Funktion/Limit a 3d function

% !TEX lualatex
\DocumentMetadata{}
\documentclass[a5paper]{article}
\usepackage{geometry}
\usepackage{pst-solides3d}
\pagestyle{empty}
\begin{document}
   \begin{pspicture}(-4,-5)(6,8)
   \psset{lightsrc=viewpoint,viewpoint=50 60 30 rtp2xyz,Decran=60}
     \psSurface[ngrid=.2 .2,incolor=yellow,linewidth=0.5\pslinewidth,
     r = 2,fillcolor=cyan,
     axesboxed,
     Zmin=0,Zmax=4](-1,-2)(1,2){
     4 x dup mul mul y dup mul add dup 4 gt {pop 4} if }
   \end{pspicture}
\end{document}

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