[pstricks] ellipsoidal coordinate system

[Herbert Voss]

Aydin Ustun wrote:

> I am trying to draw an ellipsoid using by pst-3dplot package. Is it 
> possible to show certain meridians and/or parallels, e.g. only zero 
> meridian and perpendicular to zero meridian and the equator on the 
> ellipsoid?

try this example

http://voss.homedns.org/PSTricks/pst-plot/3D/examples.phtml#ellipsoid

and draw only the interesting curves


Herbert


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