[pstricks] Define zmaxvalue/zminvalue of a function

[Marco Daniel]

Hi,


I am trying to use pst-solides3d to plot a function of the form z=f(x,y).


However I don't know how to specify the maximum value of z. The bonus 
would be to jump over division by zero.


The following example uses pgfplots and does the job. But I want to use 
pstricks ;-)


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\documentclass{article}

\usepackage{xcolor}

\usepackage{pgfplots}

\begin{document}

\begin{tikzpicture}

\begin{axis}[

view={30}{6},

% view={20}{5},

restrict z to domain*=-1:8,

xlabel=$x$,ylabel=$y$,

zmin=-1,zmax=9,xmin=-2.25]

\addplot3[surf,shader=interp,samples=500] gnuplot[raw gnuplot]{

set xrange [-2:2];

set yrange [-2:2];

set pm3d;

splot exp(x/(x**2+y**2));

};

\end{axis}

\end{tikzpicture}
\end{document}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


I tried:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{pspicture}(-1,-1)(6,8)

\psset{lightsrc=viewpoint,viewpoint=50 60 30 rtp2xyz,Decran=40,}


\psSurface[ngrid=.25 .25,incolor=yellow,

,axesboxed,

Zmax=10,Zmin=0,hue=0 1, h=6](-3,-3)(3,2){%

2.729 x y dup mul x dup mul add div exp}


\end{pspicture}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


Viele Grüße
Marco
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