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Groups > comp.graphics.apps.gnuplot > #2831

Re: Contour interpolated plot from scattered data

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On Thursday, March 19, 2015 at 5:55:57 PM UTC-4, Karl wrote:
> Am 19.03.2015 um 22:32 schrieb ronsnetquest@gmail.com:
> > How do you do a color contour plot (map view) with interpolation
> > between values from a data set when the values don't follow a
> > consistent matrix?  The x axis is time (a date), the y axis is water
> > depth (e.g., 0-20 meters), and the z value is water temperature
> > (0-30C).
> > 
> > The data is scattered enough that it cannot be put into a matrix
> > usable by pm3d (AFAIK).  This is because the time values are not
> > always consistently spaced and may have large gaps in them and there
> > are some missing values here and there for water temperatures at
> > various depths.
> > 
> > Thanks much for any insight you can provide!
> > 
> > Ron
> > 
> 
> Have you tried "set dgrid3d"? I also has several options to control the
> interpolation algorithm.
> 
>   Karl

No I hadn't.  But I see now that that may be what I was missing.  I'll keep working on it.  Thanks!

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Contour interpolated plot from scattered data ronsnetquest@gmail.com - 2015-03-19 14:32 -0700
  Re: Contour interpolated plot from scattered data Karl <mail.kfr@gmx.net> - 2015-03-19 22:55 +0100
    Re: Contour interpolated plot from scattered data ronsnetquest@gmail.com - 2015-03-19 15:05 -0700
      Re: Contour interpolated plot from scattered data ronsnetquest@gmail.com - 2015-03-19 15:40 -0700
        Re: Contour interpolated plot from scattered data ronsnetquest@gmail.com - 2015-03-19 18:15 -0700
          Re: Contour interpolated plot from scattered data ronsnetquest@gmail.com - 2015-03-19 19:01 -0700
            Re: Contour interpolated plot from scattered data Karl <mail.kfr@gmx.net> - 2015-03-20 08:47 +0100
              Re: Contour interpolated plot from scattered data ronsnetquest@gmail.com - 2015-03-23 09:04 -0700

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