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MathGroup Archive 1998

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Re: Contour plot of irregularly spaced data


  • To: mathgroup@smc.vnet.net
  • Subject: [mg10596] Re: Contour plot of irregularly spaced data
  • From: "P.J. Hinton" <paulh@wolfram.com>
  • Date: Mon, 26 Jan 1998 04:42:28 -0500
  • Organization: Wolfram Research, Inc.
  • References: <6a1lef$pn7@smc.vnet.net>

On 20 Jan 1998, Serge Crouzy wrote:

> 
>         Dear Mathematica users,
> 
>         How can I make a contour plot of irregularly spaced data ?
> 
>         Namely, I read a file containing 3 columns
>        x1  y1  z1
>        x2  y2  z2
>        ..........
>        xn  yn  zn
> 
>         And I want to make a contour plot of the zi, located at
>         coordinates (xi,yi) in the plane...
> 
>         Thanks a lot for your help

See Chapter 18, Section 4 of the book _Mathematica Graphics: Techniques
& Applications_ by Tom Wickham-Jones.  The subsection "Contour Plots"
provides an example of a contour plot of irregularly spaced data.  The
example makes use of special packages written for use with the book as
well as a MathLink executable, which performs the triangluation.

--
P.J. Hinton
Mathematica Programming Group           paulh@wolfram.com Wolfram
Research, Inc.                  http://www.wolfram.com/~paulh/




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