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Hidden parts of a curve as dashed

  • To: mathgroup at
  • Subject: [mg25087] Hidden parts of a curve as dashed
  • From: Gonczi Georges <gonczig at>
  • Date: Thu, 7 Sep 2000 22:28:45 -0400 (EDT)
  • Sender: owner-wri-mathgroup at


I need to draw a 3D curve on a surface with hidden parts. I want the
hidden parts of the curve to be drawn dashed. For this I use the method
descibed in

[Contact the author for the notbook file mentioned next - moderator]

As may be seen on the figure (see the attached file) the result is not
completely satisfactory because only a part of the hidden part of the
curve is dashed.

Is there a solution ?

Remark: in the attached file, the first cell computes the surface and I
kept the comments in French because I think you don't need to
understand  them. I translated the comments only in the graphics parts.

Thank you  for your help.

       Georges GONCZI                        E-Mail: gonczig at
       Observatoire de la Cote d'Azur
       Laboratoire G.D. Cassini / UMR 6529   Phone : +33  4 92 00 30 17
       B.P.  4229
       F-06304  NICE CEDEX 04 (France)       Fax   : +33  4 92 00 30 33

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