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<font face="Myriad Pro">Hi Juergen,<br>
<br>
maybe loading pstricks-add at last saves the problem, like<br>
<br>
\usepackage{pstricks,pstricks-add,pst-3dplot,pstricks-add}<br>
<br>
Regards,<br>
<br>
Juergen<br>
</font><br>
Juergen Rose wrote:
<blockquote cite="mid:1205328594.26517.11.camel@condor.homenet"
 type="cite">
  <pre wrap="">Hi,

the following example work last autumn, but now I get the error:

LaTeX2e &lt;2005/12/01&gt;
...
`PSTricks' v1.15  &lt;2006/12/22&gt; (tvz)
...
 v97 patch 2, 1999/12/12
(/usr/share/texmf-dist/tex/generic/multido/multido.tex
 v1.41, 2004/05/18 &lt;tvz&gt;))
(/usr/share/texmf-dist/tex/generic/pstricks/pst-node.tex
 v97 patch 11, 2000/11/09)
...
`pstricks-add' v2.82, 2006/11/22 (dr,hv)))
...
! Package xkeyval Error: `viewpoint' undefined in families
`,pstricks-add,pst-3dplot'.


\listfiles
\documentclass{article}
\usepackage{amsmath,amsfonts,amssymb}
\usepackage{pstricks,pstricks-add,pst-3dplot}

\begin{document}
   \begin{pspicture}(-4,-1.5)(4,4)
     \psset{Alpha=60,Beta=10}
     \pstThreeDCoor[xMax=3,yMax=3,zMax=5,IIIDticks]
     \pstThreeDPut(0,0,0){\pstParaboloid[increment=10]{4}{2}}
     \pstThreeDLine[linecolor=blue](0.6,1.6,2.92)(0.6,3.1,2.92)
     \pstThreeDPut(0.6,4.1,2.92){$z=x^2+y^2$}
     \parametricplotThreeD[%
     xPlotpoints=50,linecolor=green,linewidth=2pt,plotstyle=curve
     ](0,360){%
       t cos t sin 1}
     \pstThreeDLine[linecolor=blue](0.4,0.92,1)(0.4,2.42,1)
     \pstThreeDPut(0.4,4.0,1){Fl"achenkurve $z = 1 = const$}
   \end{pspicture}
\end{document}


Could you give me any hint?

        Juergen

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  </pre>
</blockquote>
<br>
<pre class="moz-signature" cols="65">-- 
 J&uuml;rgen Gilg
 Austr. 59
 70376 Stuttgart
-------------------------------------
 Tel       0711.59 27 88
 e-Mail    <a class="moz-txt-link-abbreviated" href="mailto:gilg@acrotex.net">gilg@acrotex.net</a>
 Websites  <a class="moz-txt-link-abbreviated" href="http://www.acrotex.net">www.acrotex.net</a>
           <a class="moz-txt-link-abbreviated" href="http://www.brueckenkurs-physik.de">www.brueckenkurs-physik.de</a>
           <a class="moz-txt-link-abbreviated" href="http://www.gilligan-online.de">www.gilligan-online.de</a>
</pre>
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