Re: [Gnuplot-info] pm3d does not draw properly

[Thomas S. <t.s...@fz...>]

FAQ:
"... adds blank lines to a data file whenever number
in the first column changes ..."

the awk script is to be used to separate isolines, a
structure like
x1 y1 z1
x1 y2 z2
...
x1 y99 z99
x2 y1 z100
x2 y2 z101
...
x2 y99 z198
x3 y1 z199
....
is assumed.

but your data isn't sorted at all, so there are blank
lines added nearly everywhere.

you need to sort your data first.


whining_dwarf wrote:
> 
> Hi,
> 
> I want to plot the following data in pm3d color map:
>  http://www.nabble.com/file/p24518332/cut08.txt cut08.txt 
> Using the following commands
> 
> set pm3d map; set surface;
> splot '<awk -f ~/bin/addblanks.awk cut08.txt' using 1:3:5;
> 
> (with the addblanks.awk script from the gnuplot FAQ), the result is some
> strange triangles and does not correspond to the picture I get using
> normal splot.
> 
> Any help is welcome, thanks
> 

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