I put an xlogscale in and it messed up the drawing of the gridlines. The major x gridlines are no longer the same gray as the major y gridlines, they are the gray of the minor x and y gridlines.
The following to pictures show this.
Any ideas on how this can be fixed?
Thanks
#!/usr/bin/env gnuplot
set term pdfcairo size 15cm,10cm
set output 'FFT.pdf'
set datafile separator ' '
unset key
set border lw 4 back
set grid mxtics mytics xtics ytics lt 1 lc rgb 'gray70', lt 1 lc rgb 'gray90'
set mxtics 5
set mytics 5
set xrange [10:10e3]
set title 'Harmonic Distortion'
set xlabel 'Frequency [Hz]'
set ylabel 'Output Voltage [dB]'
set mxtics 10
set logscale x 10
plot 'FFT.dat' using ($1):(20*log10((($2**2)+($3**2))**0.5)-5.49074) with lines lw 4 lc rgb 'red'
set out