8.14 3D data plotting

此为 GNUPLOT 画 3D 数值资料图形的例子。

set samples 20
set isosamples 21
set xlabel "X axis" -5,-2
set ylabel "Y axis" 4,-1
set zlabel "Z axis"
set contour
set cntrparam levels 10
set xrange [0:15]
set yrange [0:15]
set auto
set zrange [-0.6:0.6]
set data style lines
set title "3D gnu plot demo - contour of data grid plotting"
set parametric
splot "glass.dat"

set samples 21
set isosample 11
set xlabel "X axis" -3,-2
set ylabel "Y axis" 3,-2
set zlabel "Z axis" -5
set nolog
set auto
set zrange [-0.6:0.7]
set data style lines
set title "Data grid plotting"
set parametric
splot "glass.dat"

set samples 21
set isosample 11
set xlabel "X axis" -3,-2
set ylabel "Y axis" 3,-2
set zlabel "Z axis" -5
set nolog
set auto
set zrange [-0.6:0.7]
set data style lines
set title "Data grid plotting"
set parametric
splot "glass.dat" using 3:2:1