# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 500, 350 # set output 'scatter.5.png' set dgrid3d 10,10, 16 set dummy u,v set key inside right top vertical Right noreverse enhanced autotitles box linetype -1 linewidth 1.000 set parametric set contour base set style data lines set title "Simple demo of scatter data conversion to grid data" set xlabel "data style lines, dgrid3d ,,16, contour" splot "hemisphr.dat"