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Re: ParametricPlot3D


In article <4ekf5b$6gj at dragonfly.wri.com>,
R.Hirsch <i3080501 at ws.rz.tu-bs.de> wrote:
>Hello,
>
>I would like to highlight certain curves on a surface plot. 
>Parametric3D does this job well, but with black lines. How
>can I get red=RGBColor[1,0,0] plots? (Setting the option
>Prolog->RGBColor[1,0,0] failed.)

I'm not sure why Prolog failed (on my example, it turned the x- and z-
axes labels red, but nothing else!), but you can always brute-force
the color directive into the Graphics3D object.  For example,

In[4]:=
    ParametricPlot3D[{x, Sin[x], Cos[x]}, {x,0,2Pi}]

Out[4]=
    -Graphics3D-

In[5]:=
    Show[Graphics3D[{RGBColor[1,0,0],%[[1]]}, %[[2]]]]

Look at the internal form of the Graphics3D object using InputForm
to see its structure.

		Dave Wagner
		Principia Consulting
		(303) 786-8371
		dbwagner at princon.com
		http://www.princon.com/princon


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