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How to draw OUTLINES on 3D shapes?

  • To: mathgroup at
  • Subject: [mg1616] How to draw OUTLINES on 3D shapes?
  • From: gfairley at (Gerard Fairley)
  • Date: Thu, 6 Jul 1995 22:42:58 -0400
  • Organization: Interactive Computer Support

In comp.soft-sys.math.mathematica Zorro <berriz at> said: 
>Hi.  I would like to draw 3D shapes (specifically, spheres and cylinders)
>"filled in outlines".  For example, a sphere would look like a thin black 

>circle (the outline) around a gray disk (the filled-in interior).   
I don't know what you mean; I thought the outline of a sphere was a
spherical shell. 
>the outline for a cylinder would be (generally) two parallel lines
connected by  
>two half-ellipses, one at each end of the cylinder. 
>Is there a way simple way to do this in Mathematica? 
>Thanks for your help. 
Even though I am not exactly clear on what you are looking for, I am almost
certain that the answer is yes; and this is probably a simple excercise in
graphics primitives (see the MMA book). 
Gerard Fairley: email: gfairley at 
ICS: Interactive Computer Support 
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