I have a data file representing a vector field and would like to make a three dimensional plot with gnuplot.
The data set is something like this:
0.001 -0.002 0.004
0.003 0.007 -0.005
and so on
where the columns represent the Cartesian components of the vector.
How can I make the plot?
The plotting style vectors is for drawing vector fields. But that requires six values in 3D, with the meaning of x y z xdelta ydelta zdelta. Then you can draw with
splot 'file.txt' with vectors
To test with your data (don't know their meaning), you could plot the vectors along a line
splot 'file.txt' using ($0*0.01):(0):(0):1:2:3
