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MathGroup Archive 2004

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Re: How to set linewidth in 3-D graphics?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg50030] Re: How to set linewidth in 3-D graphics?
  • From: "Peltio" <peltio at twilight.zone>
  • Date: Thu, 12 Aug 2004 05:43:45 -0400 (EDT)
  • References: <5kc3sa$4bd@smc.vnet.net> <cfcql2$43v$1@smc.vnet.net>
  • Reply-to: "Peltio" <peltioNOSP at Mdespammed.com.invalid>
  • Sender: owner-wri-mathgroup at wolfram.com

>Yaroslaw Bazaliy wrote:

>>Dear All:
>>I plot a curve in 3-D with "ParametricPlot3-D". I would like to
>>be able to change the thickness of the curve. Is it possible?

Yes. You have to add the thickness directive as a fourth coordinate.
Let's say the curve you plotted is

    ParametricPlot3D[ { x[t], y[t], z[t] }, {t,a,b}]

To make the line thicker add

    ParametricPlot3D[ { x[t], y[t], z[t], Thickness[.012] }, {t,a,b}]

The nice thing with this approach is that the style directives can be a
function of the parameter. For example:

    ParametricPlot3D[ {
        t Sin[4t],
        t Cos[ 9t],
        2t Exp[-.5 t],
        {Thickness[Abs[.01t Sin[ 4t]]], Hue[1 - Cos[t]/2]} },
        {t, 0, 1.5}
    ]

cheers,
Peltio
Invalid address in reply-to. Crafty demunging required to mail me.






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