Re: Combining VectorPlot3D and ParametricPlot3D
- To: mathgroup at smc.vnet.net
 - Subject: [mg114011] Re: Combining VectorPlot3D and ParametricPlot3D
 - From: Helen Read <readhpr at gmail.com>
 - Date: Sat, 20 Nov 2010 18:24:30 -0500 (EST)
 - References: <ic8afl$83h$1@smc.vnet.net>
 
On 11/20/2010 6:12 AM, rscott wrote:
> Hello,
>
> I'm trying to show a circle in a vector field in R^3.
>
> Here's my vector field:
>
> vectorfield01 = VectorPlot3D[{y, -x, 0}, {x, -2, 2}, {y, -2, 2}, {z,
> -2, 2},
>   VectorScale ->  0.1,
>   VectorPoints ->  {9, 9, 5}]
>
> Here's my circle:
>
> circle01 = ParametricPlot3D[{Cos[t], Sin[t], 2}, {t, 0, 2 \[Pi]},
>   PlotStyle ->  Directive[Thick, Black],
>   PlotRange ->  {{-2, 2}, {-2, 2}, {-2, 2}}]
>
> Each of these individually gives me what I want, but when I try
>
> Show[circle01, vectorfield01]
>
> I get the error message
>
> Show::gcomb: Could not combine the graphics objects in Show[\!\(\*
>
> I've tried all kinds of combinations with Graphics3D[ ] etc.
>
> Any help would be appreciated!
It works fine for me. Try it in a fresh session.
-- 
HPR