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我試圖創建一個三維表面圖，看起來像這樣： 
gnuplot的 - 三維曲面圖
而是繪製方程，我試圖繪製我自己的一套包含在data.tsv數據文件採用推薦的網格格式。
8417 5128 4661
7284 4940 3373
5220 3597 4088
爲了清楚起見，上面的數據的XYZ表示爲：
rec/s mb/s latency
640000 1024 5220
640000 2048 3597
640000 4096 4088
320000 1024 7284
320000 2048 4940
320000 4096 3373
160000 1024 8417
160000 2048 5128
160000 4096 4661
，我使用以獲得所需的輸出的gnuplot的腳本是：
set term postscript eps enhanced color
set output '|ps2pdf - outputfile.pdf'
set bar 1.000000 front
set style circle radius graph 0.02, first 0.00000, 0.00000
set style ellipse size graph 0.05, 0.03, first 0.00000 angle 0 units xy
set style textbox transparent margins 1.0, 1.0 border
unset logscale
set samples 51, 51
set isosamples 21, 21
set style data lines
unset paxis 1 tics
unset paxis 2 tics
unset paxis 3 tics
unset paxis 4 tics
unset paxis 5 tics
unset paxis 6 tics
unset paxis 7 tics
set title "3D gnuplot demo"
set xlabel "X axis"
set xlabel offset character -3, -2, 0 font "" textcolor lt -1 norotate
set xrange [ 160000 : 640000 ] noreverse nowriteback
set ylabel "Y axis"
set ylabel offset character 3, -2, 0 font "" textcolor lt -1 rotate by -270
set yrange [ 1024 : 4096 ] noreverse nowriteback
set zlabel "Z axis"
set zlabel offset character -5, 0, 0 font "" textcolor lt -1 norotate
set paxis 1 range [ * : * ] noreverse nowriteback
set paxis 2 range [ * : * ] noreverse nowriteback
set paxis 3 range [ * : * ] noreverse nowriteback
set paxis 4 range [ * : * ] noreverse nowriteback
set paxis 5 range [ * : * ] noreverse nowriteback
set paxis 6 range [ * : * ] noreverse nowriteback
set paxis 7 range [ * : * ] noreverse nowriteback
set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front noinvert bdefault
x = 0.0
# Last datafile plotted: "$grid"
splot 'data.tsv' using 1:2:3
然而，上面的腳本給我以下錯誤：
"3d.gp", line 37: warning: No usable data in this plot to auto-scale axis range
splot 'data.tsv' using 1:2:3
^
"3d.gp", line 37: All points z value undefined