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MathGroup Archive 1995

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"Topographical" Coloring?

  • To: mathgroup at
  • Subject: [mg1167] "Topographical" Coloring?
  • From: hasch at (Hartmut Schmider)
  • Date: Sat, 20 May 1995 03:03:26 -0400
  • Organization: News Server at UNI-C, Danish Computing Centre for Research and Education.

I'm not Mr. Math. M. Attika, and I'll probably never be, so have
some mercy:
For contour plots and 3D sections, I've been trying for a while now to
get a grip on the coloring. The functions I want to display can take
positive and negative values, and I would like to display these in
"topographical colors", ie, deep blue for large negative values, up to
dark brown and white for large positive ones. But I simply do not know
how. I end up with this "Hue[]" function which gives me a rather silly
rainbow arangement.
Any hints of you specialists?

Thanks, Hartmut "preferably green for the wetlands" Schmider

Hartmut Schmider, Kemisk Lab. B | Der melting pot war eine Einrichtung
DTU - 301, 2800 Lyngby, Denmark | des losgelassenen Industriekapitalismus.
                                | Der Gedanke, in ihn hineinzugeraten,
e-mail hasch at  | beschwoert den Martertod, nicht die 
                                | Demokratie.            T. W. Adorno

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