*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/