MathGroup Archive 1999

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from Graphics3D to 2D

  • To: mathgroup at
  • Subject: [mg21291] from Graphics3D to 2D
  • From: Maarten.vanderBurgt at
  • Date: Wed, 22 Dec 1999 00:34:45 -0500 (EST)
  • Sender: owner-wri-mathgroup at


in the Mathematica lines below I am doing the following:
- lpts is a list of (x,y,z) coordinates
- these points are plotted usign ScatterPlot3D, which returns a Graphics3D
- Using Project I project the Graphics3D object onto the y-z plane
- Project also returns a Graphics3D object
- I use ViewPoint -> {10^200, 0, 0} to make it look like a 2D graphics

My question: is there a way to convert the Graphics3D object into a real 2D
Graphics object?


In[14]:= lpts = Table[{ t Cos[t],  t Sin[t], t}, {t, 0, 4Pi, Pi/20}];

In[15]:= spir = ScatterPlot3D[lpts]
- graphics not shown -
Out[15]= -Graphics3D-

In[16]:= Show[Project[spir, {{0, 0, 1}, {0, 1, 0}}, {0, 0, 0}], ViewPoint
-> {10^200, 0, 0}]
- graphics not shown -
Out[16]= -Graphics3D-

thanks for your help

Maarten van der Burgt

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