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Re: Surface plot with unevenly spaced coordinate

  • To: mathgroup at
  • Subject: [mg3454] Re: Surface plot with unevenly spaced coordinate
  • From: Harald Berndt <haraldb at>
  • Date: Fri, 8 Mar 1996 01:31:32 -0500
  • Organization: University of California Forest Prodcts Lab
  • Sender: owner-wri-mathgroup at

Ram Piyaket wrote:
> Hi,
> I have a table containing data that I would
> like to do a surface plot. The first row,
> and column contain the x-y coordinate, respectively.
> The rest of the table contains data corresponding to
> these coordinates. Is it possible to plot
> these data using ListPlot3D, or any commands?
> Thank you very much.
> Ram


One way is to use Tom Wickham-Jones' ExtendGraphics package, available 
on MathSource. He redefines and extends some graphics functions, and 
his ListSurfacePlot3D should do what you want.

In cases where the surface height is supposed to be some simple 
function of the, but you have noisy, irregularly spaced data, a 
two-dimensional Fit[] could work for you. I'm not sure whether 
Interpolation would work for this kind of data set.

Harald Berndt,                                University of California
Research Specialist                         Forest Products Laboratory

Phone:	510-215-4224                                FAX:			510-215-4299


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