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From: bucacs@ux1.cts.eiu.edu (Carlos Dragonslayer Butler)
Newsgroups: sci.math.symbolic,comp.graphics
Subject: Re: Can Mathematica combine surface and 3D Graphics??
Message-ID: <1991May21.182928.11052@ux1.cts.eiu.edu>
Date: 21 May 91 18:29:28 GMT
References: <376@s2.elec.uq.oz>
Organization: Eastern Illinois University
Lines: 36

In article <376@s2.elec.uq.oz> young@s2.elec.uq.oz (Steven Young) writes:
>I'm wanting to show a SurfaceGraphics with two Graphics3D objects in
>Mathematica, and found it's not easily possible.  The context of
>the problem is showing a 2-input, single-output system response
>and wanting to combine the desired response points with the
>SurfaceGraphics plot generated by Plot3D.
>
>The Mathematica Reference Guide (Appendix B, Mathematica, p. 685)
>says that when using the Show command, only plots based on Graphics
>and Graphics3D can be combined.  Sounds like the final word on the 
>matter, but I was wondering if anyone's done anything clever in
>this regard, or can suggest other packages to do the task.
>
>I would wonder if there is a way in Mathematica to change a SurfaceGraphics
>object into a Graphics3D object, that I don't know about (mmm...).
>It seems fairly intuitive that Mathematica is ultimately treating the 
>SurfaceGraphics object as a Graphics3D object.
>
>If you could respond to me via e-mail, then I'll do the responsible
>thing and summarize and repost.  If the solution is simple then
>post to sci.math.symbolic, as I'll read that more than comp.graphics.
>
>Thanks for your time.
>
>Steven Young.

	If you set your SurfaceGraphics object to some variable, 'thang.'
You can convert 'thang' to a Graphics3D object via the command:
Graphics3D[thang]. The resulting Graphics3D object can be manipulated
like any other. (I think, it's been a while :-). What up wri.com!?)

-- 
 Carlos Dragonslayer Butler|       "People often condescend          
   bucacs@ux1.ctseiu.edu   |     what they fail to comprehend.       
       Lord of House       |      Ignorance makes life easier.       
                           |  Peace, knowledge, love and happiness."