[pstricks] pst-solides3d

[camus.philippe at free.fr]

Thanks for the idea.
I'll try something like this, with a finer grid.
But tomorrow...
Philippe


Selon Juergen Gilg <gilg at acrotex.net>:

> Dear Philippe,
> > I tried to get "smooth" level curves
> try this one:
>
> \documentclass{article}
> \usepackage{pstricks}
> \usepackage{pst-solides3d}
>
> \begin{document}
> \psset[pst-solides3d]{%
> viewpoint=50 30 20 rtp2xyz,
> Decran=40,
> lightsrc=viewpoint}
>
> \begin{pspicture}(-7,-8)(7,8)
>
> \psSurface[%
> ngrid=.25 .25,
> linewidth=0.5\pslinewidth,
> axesboxed,
> algebraic,
>      intersectionplan={[0 0 1 3]},
>      intersectioncolor=(bleu),
>      intersectionlinewidth=1,
>      intersectiontype=0,
> tablez=-4 1 -3 {} for,
> zcolor=(Red) (Yellow)]
> (-4,-4)(4,4){%
> ((y^2)-(x^2))/4 }
> \end{pspicture}
> \end{document}
>
> Hope this is the smoothness you were talking about. However i guess you
> will color some regions of z-height in different colors with the lines
> of equivivalent height...
>
> Maybe this t inspires you to find a solution.
>
> Regards,
>
> Juergen
>
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