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MathGroup Archive 1998

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Re: Help with list contour plot

  • To: mathgroup at
  • Subject: [mg14164] Re: Help with list contour plot
  • From: Paul Abbott <paul at>
  • Date: Wed, 30 Sep 1998 02:04:14 -0400
  • Organization: University of Western Australia
  • References: <6up5lh$>
  • Sender: owner-wri-mathgroup at

Abdelwahab Taha wrote:

> I have a set of discrete data output from a finite element program.
> The data is in the form
> {x,y,z}.  The underlying x-y is not regular, but has bounds, i.e.
> 0<=x<=a, and 0<=y<=b.  I would like to visualize z using either a
> surface or contour plot.  How can I do that?

Have a look at the functions in the DiscreteMath`ComputationalGeometry`
package which is included with version 3.0.

Also, the book "Mathematica Graphics" by Tom Wickham-Jones includes code
for triangular interpolation which generates a function for
approximating irregular data.  The packages are available from
MathSource at

Paul Abbott                                   Phone: +61-8-9380-2734
Department of Physics                           Fax: +61-8-9380-1014
The University of Western Australia            Nedlands WA  6907       
mailto:paul at  AUSTRALIA              

            God IS a weakly left-handed dice player

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