[Gnuplot-info] 4d data file

[roberto <Rob...@un...>]

  I try plot a 4d data file (x,y,z,intensity) assigning the color on the 
basis of the intensity?

I see a similar example here:
http://gnuplot.sourceforge.net/demo_4.4/heatmaps.html

and using my data file I modify the splot command:
splot 'data.txt' using 1:2:3:4 with pm3d title "4 data columns x/y/z/color"

But I have the following error message:

  Warning: Single isoline (scan) is not enough for a pm3d plot.
        Hint: Missing blank lines in the data file? See 'help pm3d' and FAQ


Thanks in advanced!
R




-- 

Roberto Marzocchi
PhD student in Hydrogeology

SUPSI - Institute of Earth Sciences
Via Trevano C.P. 72, 6952 Canobbio, Switzerland
Phone: +41 58 6666 212 Fax: +41 58 6666 209

E-mail: _roberto.marzocchi@unil.ch_ <mailto:rob...@su...>


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