[pstricks] pst-3dplot

[Pedro Jorge Caridade]

Hi

I'm getting a strange result when using pstTheeDCircle (maybe i'm doing 
something wrong, or did not understand the documentation). I want to 
draw a circle in the xy plane with z=0. For this I use \pstThreeDCircle 
(0,0,0)(2,0,0)(0,-2,0). However when I am plot it with Alpha=180 and 
Beta=90, i.e., z axis perpendicular to the paper and pointing toward 
us, I get an ellipse.
Am I doing some wrong? I think the vectors for the definition of the 
ellipse are perpendicular, as mention in the documentation.

Pedro

P.S.: Herbert this email in not in the pstricks mailing list since I am 
out of my office, but the answers  will get to me.

\documentclass{minimal}
\usepackage{pstricks,pst-3dplot}
\begin{document}
\begin{pspicture}(-5,-5)(5,5)

\pstThreeDCoor[Alpha=180,Beta=90,xMin=-3,yMin=-3,zMin=0]
\pstThreeDEllipse(0,0,0)(2,0,0.0)(0,-2,0)
\pstThreeDDot[dotscale=2](0,0,0)

\end{pspicture}

\end{document}


  *File List*
  minimal.tex
  minimal.cls    2001/05/25 Standard LaTeX minimal class
pstricks.sty    2004/05/12 v0.2l LaTeX wrapper for `PSTricks' (RN,HV)
pstricks.tex    2004/06/22 v1.04 `PSTricks' (tvz)
   xcolor.sty    2004/07/04 v2.00 LaTeX color extensions (UK)
    color.cfg    2001/08/31 v1.1 color configuration of teTeX/TeXLive
    dvips.def    1999/02/16 v3.0i Driver-dependant file (DPC,SPQR)
pst-3dplot.sty    2004/07/15 package wrapper for pst-3dplot.tex (hv)
pst-3dplot.tex    2005/06/07 v1.66 `PST-3dplot' (hv)
pst-xkey.tex    2005/02/14 v1.4 PSTricks specialization of xkeyval (HA)
  xkeyval.sty    2005/02/14 v2.2 package option processing (HA)
  xkeyval.tex    2005/02/14 v2.2 key=value parser (HA)
  ***********