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Groups > comp.graphics.apps.gnuplot > #386

Re: Can contour surface model be saved to file?

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On Jun 17, 9:26 pm, Hans-Bernhard Bröker <HBBroe...@t-online.de>
wrote:
> On 17.06.2011 07:52, Bengt T wrote:
>
> > I have a contour plot (meshed surface) build from file with x-, y- and
> > z-coordinates and wish to save the mathematical model, generated by
> > gnuplot, in some way.
>
> No can do, because there is not really any such model.  None you would
> need gnuplot to generate, anyway.
>
> Gnuplot draws contours by dead simple interpolation of the input data to
> find points along the edges between neighboring data points where the
> contour level might be reached.
>
> I.e. the model, if any, is just a simple triangle mesh set up directly
> by your data points.
>
> > The goal is to use the model to generate z-
> > coordinate from new x- and y-coordinates.
>
> > Example of input file (x, y, z):
> > 1 1 1
> > 1 2 2
> > 1 3 3
> > 2 1 2
> > 2 2 4
> > 2 3 1
>
> Is the actual data gridded (your example could be, but isn't) or do you
> rely on dgrid3d to do that for you?

The data comes from level measurements in real terrain. The
measurements, x, y- and z-coordinates,  were made in a random
unorganized fashion .

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Thread

Can contour surface model be saved to file? Bengt T <bengt_tornqvist@hotmail.com> - 2011-06-16 22:52 -0700
  Re: Can contour surface model be saved to file? Johan B <johan.barne@gmail.com> - 2011-06-17 03:07 -0700
    Re: Can contour surface model be saved to file? Bengt T <bengt_tornqvist@hotmail.com> - 2011-06-17 09:08 -0700
  Re: Can contour surface model be saved to file? Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2011-06-17 21:26 +0200
    Re: Can contour surface model be saved to file? Bengt T <bengt_tornqvist@hotmail.com> - 2011-06-19 00:37 -0700
      Re: Can contour surface model be saved to file? Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2011-06-19 16:00 +0200
        Re: Can contour surface model be saved to file? Ingo Thies <ingo.thies@gmx.de> - 2011-06-19 21:30 +0200
          Re: Can contour surface model be saved to file? Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2011-06-21 00:12 +0200
            Re: Can contour surface model be saved to file? Ingo Thies <ingo.thies@gmx.de> - 2011-06-21 16:00 +0200

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