[Gnuplot-info] pm3d does not draw anything

[whining_dwarf <ma...@ii...>]

Hi, I want to generate a pm3d plot the following way:

set pm3d map;
splot '<awk -f ~/bin/addblanks.awk  fine_grid_wfs_zint.txt' using 1:2:3;

using the following file:

http://www.nabble.com/file/p26077624/fine_grid_wfs_zint.txt
fine_grid_wfs_zint.txt 

The file is sorted and blanks are added as explained in the FAQ. However, it
does not plot anything.
Upon unsetting pm3d, I obtain plots as they should be.

Any hint is appreciated, thanks.
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