Math Forum Discussions

Allan Hayes

Posts: 1,508
Registered: 12/6/04

Re: [mg4416] Help with ParametricPlot3D in color
Posted: Jul 30, 1996 2:58 AM

Plain Text

ivan@nauplius.rsmas.miami.edu (Ivan Lima)
[mg4416] Help with ParametricPlot3D in color
writes
> 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.

Ivan,

You can use the optional fourth entry in the parametric form:

ParametricPlot3D[
{{Cos[t],Sin[t],t, Hue[0]},{Cos[t],-Sin[t],t, Hue[2/3]}} ,
{t, 1, 2}
]

The coloring can depend on t

ParametricPlot3D[
{{Cos[t],Sin[t],t,Hue[t]},{Cos[t],-Sin[t],t,Hue[-t]}},
{t, 1, 2}
]

Allan Hayes
hay@haystack.demon.co.uk