gnuplot-beta

Plotting Density profile from datafile

[disruptivetechnology <bre...@go...>]

I have three column data which I wish to plot. The first two columns refer to
the in plane grid positions and the third is the height. I wish to plot a
density map. I am unable to do this. I can plot a continulous function and
the density map, however I am unanble to get this working for the data file.
Any advice?? Now the three dimensional map works, but when I try pm3d map, I
get nothing. Is there any advice that you can suggest or some examples
scripts. My data is listed as follows:

0 0 1.5
0 1 1.6
0 2 1.9
n m X

Many thanks
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Re: Plotting Density profile from datafile

[Petr M. <mi...@ph...>]

> I have three column data which I wish to plot. The first two columns refer to
> the in plane grid positions and the third is the height. I wish to plot a
> density map. I am unable to do this. I can plot a continulous function and
> the density map, however I am unanble to get this working for the data file.
> Any advice?? Now the three dimensional map works, but when I try pm3d map, I
> get nothing. Is there any advice that you can suggest or some examples
> scripts. My data is listed as follows:
> 
> 0 0 1.5
> 0 1 1.6
> 0 2 1.9
> n m X

There must be a separator. Add a blank line in between scans (where your "n" 
is changing).

See also gnuplot FAQ "3.10 Pm3d splot from a datafile does not draw 
anything".

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PM