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Re: tetrahedron problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg82092] Re: [mg82041] tetrahedron problem
  • From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
  • Date: Fri, 12 Oct 2007 02:49:23 -0400 (EDT)
  • References: <200710100827.EAA26747@smc.vnet.net>

Since,

Head[PolyhedronData["Tetrahedron"]]
  Graphics3D

all you need to do is just to evaluate

PolyhedronData["Tetrahedron"]

without a second Graphics3D and even without  Show, though haivng the  
latter should do no harm.

However, there is something strange about the error message you get  
with your input below. I would have expected "Graphics3D is not a  
Graphics3D primitive or directive."

Andrzej Kozlowski
	
On 10 Oct 2007, at 17:27, Mark Fisher wrote:

> Hi all,
>
> PolyhedronData["Tetrahedron"]
>
> works fine, but
>
> Show[Graphics3D[PolyhedronData["Tetrahedron"]]]
>
> generates an error ("Graphics is not a Graphics3D primitive or
> directive.").
>
> I'm using "6.0 for Microsoft Windows (32-bit) (June 19, 2007)".
>
> Is this a problem for others? Is this a bug?
>
> --Mark
>
>



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