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This is very helpful. I did not know about pst-vue3d. I will download
the documentation.<br>
<br>
I am still trying to add a 3dplot to the circles.<br>
<br>
Thanks very much.<br>
<br>
<br>
<br>
Herbert Voss wrote:
<blockquote cite="mid4618F4F5.5080808@zedat.fu-berlin.de" type="cite">
<pre wrap="">Arne Hallam wrote:
</pre>
<blockquote type="cite">
<pre wrap="">ions (which I can easily do).
Show a small circle or disc at (x1,x2,0) in the x1-x2 plane(which I
cannot do)
</pre>
</blockquote>
<pre wrap=""><!---->
with pst-3dplot you have a parallel projection and
with pst-vue3d a central projection
\documentclass[12pt]{article}
\usepackage{pstricks}
\usepackage{pst-3dplot,pst-vue3d}
\begin{document}
\begin{pspicture}(-2,-1.25)(2,3)
\psset{Beta=10,Alpha=30}
\pstThreeDCoor[xMax=2,yMax=2,zMax=4,linecolor=black,linestyle=dashed]
\psset{linecolor=red,linewidth=2pt}
\pstThreeDCircle(0,0,0)(1.5,0,0)(0,1.5,0)
\pstThreeDCircle[linecolor=green](0,0,1)(1.5,0,0)(0,1.5,0)
\pstThreeDCircle[linecolor=blue,fillstyle=solid,fillcolor=blue](0,0,2)(1.5,0,0)(0,1.5,0)
\pstThreeDDot[dotscale=2,linecolor=white](0,0,2)
\end{pspicture}
\begin{pspicture}(-2,-1.25)(2,5)
\AxesThreeD[linecolor=black,linestyle=dashed,arrows=->](30,30,40)
\psset{linecolor=red,linewidth=2pt,normaleLatitude=90,normaleLongitude=0}
\CircleThreeD(0,0,0){15}
\CircleThreeD[linecolor=green,fillstyle=solid,fillcolor=green](0,0,10){15}
\CircleThreeD[linecolor=blue](0,0,20){15}
\end{pspicture}
\end{document}
more informations in the documentation of the packages
Herbert
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
with all thy getting get understanding -- Proverbs 4:7.
In the wildness of speculation it has been suggested (of course more in jest than in earnest),that Europe ought to grow its corn in America, and devote itself solely to manufactures and commerce, as the best sort of division of the labour of the globe -- Thomas Malthus, An Essay on the Principle of Population Book III, Chapter XII.
Arne Hallam
Department of Economics
266 Heady Hall
Iowa State University
Ames, IA 50011
Work: 515-294-5861
FAX: 515-294-0221
Home: 515-292-8739
</pre>
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