# set terminal pngcairo background "#ffffff" enhanced font "arial,8" fontscale 1.0 size 540, 360 # set output 'rgb_variable.1.png' unset border set angles degrees set arrow 1 from 0.00000, 0.00000, 0.00000 to 0.00000, 1.00000, 0.00000 nohead back nofilled linecolor rgb "red" linewidth 3.000 dashtype solid set arrow 2 from 0.00000, 0.00000, 0.00000 to 0.866025, -0.500000, 0.00000 nohead back nofilled linecolor rgb "green" linewidth 3.000 dashtype solid set arrow 3 from 0.00000, 0.00000, 0.00000 to -0.866025, -0.500000, 0.00000 nohead back nofilled linecolor rgb "blue" linewidth 3.000 dashtype solid set style increment default set style data lines unset xtics unset ytics unset ztics set title "RGB color information read from data file" set xrange [ * : * ] noreverse writeback set x2range [ * : * ] noreverse writeback set yrange [ * : * ] noreverse writeback set y2range [ * : * ] noreverse writeback set zrange [ * : * ] noreverse writeback set cbrange [ * : * ] noreverse writeback set rrange [ * : * ] noreverse writeback set lmargin 5 set bmargin 2 set rmargin 5 rgb(r,g,b) = int(r)*65536 + int(g)*256 + int(b) xrgb(r,g,b) = (g-b)/255. * cos(30.) yrgb(r,g,b) = r/255. - (g+b)/255. * sin(30.) ## Last datafile plotted: "rgb_variable.dat" plot 'rgb_variable.dat' using (xrgb($1,$2,$3)):(yrgb($1,$2,$3)):(rgb($1,$2,$3)) with points pt 7 ps 4 lc rgb variable notitle