[pstricks] hiddenLine and parametricplotThreeD - thanx for help
A. Erhardt
erhardt at fh-offenburg.de
Thu Jun 5 15:08:04 CEST 2008
:-) Aah, so, of course!
Thanks a lot!
Angelika Erhardt
> -----Ursprüngliche Nachricht-----
> Von: "Herbert Voss" <Herbert.Voss at FU-Berlin.DE>
> Gesendet: 04.06.08 16:54:51
> An: Graphics with PSTricks <pstricks at tug.org>
> Betreff: Re: [pstricks] hiddenLine and parametricplotThreeD
> A. Erhardt schrieb:
>
> > I am having problems with parametricplotThreeD and the hiddenLine option.
> > In the statement
> > \parametricplotThreeD[xPlotpoints=500, yPlotpoints=20, hiddenLine=true](0,360)(-90,90){...}
> > setting hiddenLine=true or hiddenLine=false shows the same result.
> >
> > How can I hide the invisible lineses with parametricplotThreeD?
>
> In this case the improved hidden line style doesn't really
> work. You can draw the circles only for the visible part
> or use the package pst-solide3d for central projection.
>
> The first solution:
> \begin{pspicture}(-5,0)(15,10)
> \psset{unit=30.0mm,Alpha=45, Beta=15}
> \parametricplotThreeD[xPlotpoints=500, yPlotpoints=10](-45,135)(0,90){%
> /r 1.0 def
> r t cos mul u sin mul
> r t sin mul u sin mul
> r u cos mul
> }
> \parametricplotThreeD[xPlotpoints=500, yPlotpoints=8](0,90)(-45,135){%
> /r 1.0 def
> r u cos mul t sin mul
> r u sin mul t sin mul
> r t cos mul
> }
> \pstThreeDCoor[xMin=-.5, xMax=2.0, yMin=-.5, yMax=2.0, zMin=-.5,
> zMax=1.5,linecolor=black,linewidth=0.6pt]
> \end{pspicture}
>
> Herbert
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