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MathGroup Archive 1996

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Re: Re: Help with ParametricPlot3D in color

  • To: mathgroup at smc.vnet.net
  • Subject: [mg4557] Re: [mg4480] Re: Help with ParametricPlot3D in color
  • From: Elias Saab <mathes at esaab.math.missouri.edu>
  • Date: Wed, 7 Aug 1996 04:18:05 -0400
  • Sender: owner-wri-mathgroup at wolfram.com


Here is how one can use Color in ParametricPlot3D.
Example.

ParametricPlot3D[{t,t^2,t^3,RGBColor[1,0,0]},{t,0,2}]
Elias Saab


On Mon, 29 Jul 1996, Victoria Steblina wrote:

> ivan at nauplius.rsmas.miami.edu (Ivan Lima) wrote:
> 
> >I'm trying to plot some phase portraits of a three-dimensional system
> >with ParametricPlot3D and I'd like it to plot the lines in
> >color. After two days looking at the manuals I can't find any way to
> >do that. Does anybody know how to do that?  Sorry for posting such a
> >stupid question. I'm kind of new to Mathematica graphics and any
> >help will be appreciated
> 
> >Bellow are the commands I'm using.
> 
> >ParametricPlot3D[Evaluate[{x[t],y[t],z[t]} /. %], 
> >                          {t, 100, 20000}, PlotPoints -> 20000, 
> >                           PlotRange -> {{0, 6}, {0, 2}, {0, 1}},
> >                           ColorOutput -> RGBColor,
> >                           ViewPoint -> {1.3, 2.4, 2.}]  
> 
> 
> Hi, 
> 
> you need to use the LineForm primitive in Graphics3D.
> Do the ParametricPlot first then display the result using Show:
> 
> ParametricPlot3D[Evaluate[{x[t],y[t],z[t]} /. %],
>                 {t, 100, 20000}, PlotPoints -> 20000, 
>                  PlotRange -> {{0, 6}, {0, 2}, {0, 1}},
>                  ViewPoint -> {1.3, 2.4, 2.}]
> 
> Show[ Graphics3D[ {LineForm[Hue[0.5]], %[[1]]}, %[[2]] ],
>       AspectRatio -> Automatic ]
> 
> Latter will redisplay lines in radiant blue. For 3D surfaces analogous
> directive would be the EdgeForm.
> 
> 
> I hope this helps
> 
> Vicki
> 
> 
> ________________________________________________________________
>  Victoria Steblina                      
>  vvs124 at rsphy1.anu.edu.au  
>  Optical Sciences Centre                                               
>                                                                        
>     
>  Australian National University                
> 

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