Re: ParametricPlot3D

• To: mathgroup at smc.vnet.net
• Subject: [mg3088] Re: ParametricPlot3D
• From: ianc (Ian Collier)
• Date: Wed, 31 Jan 1996 03:03:21 -0500
• Organization: Wolfram Research, Inc.
• Sender: owner-wri-mathgroup at wri.com

In article <4ekf5b\$6gj at dragonfly.wri.com>, i3080501 at ws.rz.tu-bs.de
(R.Hirsch) 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.)
>
> Thank you,
>
>   Richard
> --
> -------------------------------------------------------------------------
> Richard Hirsch      |             Institut f. Pharmazeutische Technologie
> r.hirsch at tu-bs.de   |                            TU Braunschweig, Germany

You can use a ColorFunction as a fourth function in
ParametricPlot3D. You can even make it a function of
the parameter if you wish. Here are a couple of
examples:

In[9]:=
ParametricPlot3D[ {Sin[t], Cos[t], t/3, RGBColor[1,0,0]},
{t,0,15}]
Out[9]=
-Graphics3D-

In[10]:=
ParametricPlot3D[ {Sin[t], Cos[t], t/3, RGBColor[t/15,0,0]},
{t,0,15}]
Out[10]=
-Graphics3D-

I hope this helps.

--Ian

-----------------------------------------------------------
Ian Collier
Technical Sales Support
Wolfram Research, Inc.
-----------------------------------------------------------
tel:(217) 398-0700     fax:(217) 398-0747      ianc at wri.com
Wolfram Research Home Page:             http://www.wri.com/
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