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Re: Removing Graphics3D polygon edges

  • To: mathgroup at
  • Subject: [mg18993] Re: [mg18948] Removing Graphics3D polygon edges
  • From: "David Park" <djmp at>
  • Date: Tue, 3 Aug 1999 13:44:37 -0400
  • Sender: owner-wri-mathgroup at


Use EdgeForm[] as the fourth item in your parametric representation. The book isn't
too clear on this, but you can put a plotting directive, or list of plotting
directives in that position. Here is an example.

ParametricPlot3D[{Cos[t]*(3 + Sin[u]), Sin[t]*(3 + Cos[u]), Sin[u],
    EdgeForm[]}, {t, 0, 2*Pi}, {u, 0, 2*Pi}, Boxed -> False,
   Axes -> False, PlotPoints -> {40, 21}];

David Park
djmp at

>Hello from Melbourne Australia,
>I can't figure out how to remove the edges of polygons on the surface of a
>Graphics3D object created by a ParametricPlot3D. The skeleton of my call
>looks like this:
>ParametricPlot3D[{ , , },{ , , },{ , , },
>      BoxRatios->{1,1,2},Axes->False,Boxed->False,
>      PlotPoints->40]
>I want the equivalent smooth appearance one gets from Mesh->False in a
>surface plot. I think I'm supposed to include an EdgeForm[] directive, but I
>'m having trouble with the syntax.
>Greg Keogh greg at

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