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MathGroup Archive 2002

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RE: Colored ListPlot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg36889] RE: [mg36868] Colored ListPlot
  • From: "David Park" <djmp at earthlink.net>
  • Date: Tue, 1 Oct 2002 04:45:12 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

John,

You could do something like this.

points =
    With[{del = 2Pi/24},
      Table[{Cos[t], Sin[t], t/(2Pi)}, {t, 0, 2Pi - del, del}]];

Show[Graphics[
      {AbsolutePointSize[7],
        {Hue[Last[#]], Point[#[[{1, 2}]]]} & /@ points,
        Line[Drop[#, -1] & /@ points]}],
    AspectRatio -> Automatic,
    Background -> GrayLevel[0.4],
    ImageSize -> 400];

When I made the point list I made certain the z values were between 0 and 1.
Otherwise you will have to define a color function that will associate a
proper color with each value of z.

David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/


From: Moranresearch at aol.com [mailto:Moranresearch at aol.com]
To: mathgroup at smc.vnet.net

I have a list of points l1={xi,yi,zi} how can I make a 2D list plot of
{xi,yi} where the color of each point is zi ? Thank you. John





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