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Re: 2nd attempt at post with corrected code
*To*: mathgroup at smc.vnet.net
*Subject*: [mg69304] Re: 2nd attempt at post with corrected code
*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
*Date*: Wed, 6 Sep 2006 04:28:16 -0400 (EDT)
*Organization*: The Open University, Milton Keynes, UK
*References*: <edjg8p$lq8$1@smc.vnet.net>
*Sender*: owner-wri-mathgroup at wolfram.com
T Harris wrote:
> Hello,
>
> I have tried everything I know to get this code to look as it does in the
> notebook. I can't do it. However, once it is copied and pasted in a
> notebook, it works on my machine and looks like it originally did. If it
> doesn't work for anyone else, thanks for the try. I can't remove my last
> message. This is my second attempt at this. I am sorry others have tried
> and been unable to help because of missing code. If it doesn't work now,
> thanks, and I won't try again to repost this. There should be three parts
> to the code. If there is any type of error, please forget about it.
> Thanks.
>
> The two questions I had were (1) How do I find the planar area of the
> ellipsoid? and (2) How do I identify what plane it plots out on?
>
> In[1222]:=
> \!\(\(Clear[perpframe, r];\)\n
> \(r = Random[Real, {\[Pi]\/4, \[Pi]\/2}];\)\n
> \(s = Random[Real, {0, \[Pi]\/2}];\)\n
> \(\(t = Random[Real, {\(-\(\[Pi]\/2\)\), \[Pi]\/2}];\)\(\n\)
> \)\n
> \(Clear[perpframe];\)\n
> \(\({perpframe[1], perpframe[2],
> perpframe[3]} = {{Cos[r]\ Cos[t] - Cos[s]\ Sin[r]\ Sin[t],
> Cos[t]\ Sin[r] + Cos[r]\ Cos[s]\ Sin[t],
> Sin[s]\ Sin[t]}, {\(-Cos[s]\)\ Cos[t]\ Sin[r] - Cos[r]\ Sin[t],
> Cos[r]\ Cos[s]\ Cos[t] - Sin[r]\ Sin[t],
> Cos[t]\ Sin[s]}, {Sin[r]\ Sin[s], \(-Cos[r]\)\ Sin[s],
> Cos[s]}};\)\(\n\)
> \)\n
> \(ranger = 1.0;\)\n
> \(frameplot =
> Show[Table[
> Arrow[perpframe[k], Tail \[Rule] {0, 0, 0},
> VectorColor \[Rule] Indigo], {k, 1, 3}],
> Graphics3D[Text["\<perpframe[1]\>", 0.5\ perpframe[1]]],
> Graphics3D[Text["\<perpframe[2]\>", 0.5\ perpframe[2]]],
> Graphics3D[
> Text["\<perpframe[3]\>",
> 0.5\ perpframe[3]]], \[IndentingNewLine]Axes3D[ranger],
> PlotRange \[Rule] {{\(-ranger\), ranger}, {\(-ranger\),
> ranger}, {\(-ranger\), ranger}}, Boxed \[Rule] False,
> Axes \[Rule] True, ViewPoint \[Rule] CMView,
> AxesLabel \[Rule] {"\<x\>", "\<y\>", "\<z\>"}];\)\)
--> Show::"gcomb" : "An error was encountered in combining the graphics
objects in << 1 >>. More...
> In[1230]:=
>
>
> {xstretch,ystretch,zstretch} = {1.5,0.8,0};
> ranger=1.5;
> {slow,shigh} = {0,Pi};
> {tlow,thigh} = {0,2 Pi};
>
> hungellipsoidplot =
> ParametricPlot3D[ xstretch Sin[s] Cos[t] perpframe[1] +
> ystretch Sin[s] Sin[t] perpframe[2] +
> zstretch Cos[s]perpframe[3], {s,slow,shigh},{t,tlow,
> thigh},
>
> PlotRange->{{-ranger,ranger},{-ranger,ranger},{-ranger,ranger}},
> Axes->True,AxesLabel->{"x","y","z"},
> Boxed->False,ViewPoint->CMView,DisplayFunction->Identity];
>
> setup =Show[hungellipsoidplot,frameplot,Axes3D[ranger],
> DisplayFunction->$DisplayFunction];
--> ViewPoint::"nlist3" : "(CMView) is not a list of three numbers. More...
--> Show::"gcomb" : "An error was encountered in combining the graphics
objects in [...snipped...]
> In[1236]:=
>
>
> Show[setup,ViewPoint->12 perpframe[1]];
--> Show::"gtype" : "(Show) is not a type of graphics. More...
Jean-Marc
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