Gnuplot

#!/bin/bash

set terminal wxt size 845,700

set xlabel "z/(D/2)" font "Times New Roman, 26" offset 0,-1,0

set ylabel "y/(D/2)" font "Times New Roman, 26" offset -4,0,0

set lmargin 15

set bmargin 5

set xr [-0.1:1]

set yr [-0.1:1]

set xtics font "Arial, 18"

set ytics font "Arial, 18"

set datafile separator ","

set palette defined ( 0 'blue', \

                      1 'green', \

      2 'yellow', \

                      3 'red' )

set cbrange [0:0.0003]

set cbtics 0,0.0001,0.0003

set format cb "%1.0t{/Symbol \264}10^{%L}"

plot "forceField-re144.csv" using \

($2/0.003-1):($1/0.003-1):($4/sqrt($4*$4+$3*$3)*0.05):($3/sqrt($4*$4+$3*$3)*0.05):5 w vectors head size 0.5,0.7 filled lw 1.5 lc palette title ''

pause -1