Re: [Gnuplot-info] splot and partial data

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

unset dgrid3d
otherwise the data are interpolated

separate the individual iso-lines in your data file
by single blank lines.


trailblazerger wrote:
> 
> Hi there,
> 
> I am trying to do a simple 3D-Plot of data I stored in a file
> "myfile.txt". This file contains data which depends on two parameters: d
> and r such that r >= d, i.e.
> 
> # r, d, result
> 7, 3, 3.21
> 7, 4, 7.23
> 7, 5, 78,23
> 7, 6, 89,21
> 8, 3, 23.19
> 8, 4, 23.12
> 8, 5, 23.11
> 8, 6, 11.99
> 8, 7, 93,47
> 9, 3, 98.21
> 
> and so on. The problem is: If I use the following gnuplot-code then it
> automatically also uses data which I did not specify, for example r = 7, d
> = 9 for which there are no values in the file (r> d required).
> 
> So how do I tell gnuplot to only plot those data that are supplied in the
> file without interpolation or something thereof?
> 
> Thanks in advance!
> 
> The code:
> 
> 	set xrange[3:14];
> 	set yrange [3:*];
> 	set xlabel "r";
> 	set ylabel "d";
> 	set zlabel "sec";
>         set dgrid3d
>         set cntrparam levels discrete 0, 3, 5, 7
>         set key 19, 8
> 	set view 65,345,1.0,1.0
> 	set palette defined (0 "black", 0.2 "gray" ,0.45  "#55CC55")
> 	set ticslevel 0
> 	set pm3d 
>         splot  "myfile.txt" using 1:2:5 with lines title "atitle" lc rgb
> "#000000";
> 

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