[pstricks] I need a little help

Leon Free leon.free at free.fr
Wed Dec 19 06:46:26 CET 2012

Le 18/12/2012 23:12, Cyrille Piatecki a écrit :
> 4) How to construct really the green curve on the curvature of the curev ?
> Thanks to anybody who could help me.

I'm not sure what this curve is. If you project this green line on the
(x,y) plane, would you get a straight line trough (x_0,y_0) and
(x_1,y_1) ? If yes, use a parametric plot (see pst-solides3d doc which
includes examples on how to do that) with
u varying in (x_0,x_1)


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