set table 'dgrid3d_table.txt' splot $data_dgrid3d using 1:2:3 unset table
unset dgrid3d unset logscale xyz set xrange [0:100] set yrange [0:100] set zrange [0:100] set xlabel 'x' set ylabel 'y' set zlabel 'z' splot 'dgrid3d_table.txt' using 1:2:3 with lines, \ $data_dgrid3d