找到了Re: a gnuplot question# Computation - 科学计算
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要是叠几个contour可以这么干:
set terminal table
set output 'ds1.d'
set contour
...
splot 'data1.dat' using 1:2:3
set output 'ds2.d'
...
splot 'data2.dat' using 1:2:3
...
set terminal postscript
set out 'final.ps'
...
plot 'ds1.d', 'ds2.d'
set terminal table
set output 'ds1.d'
set contour
...
splot 'data1.dat' using 1:2:3
set output 'ds2.d'
...
splot 'data2.dat' using 1:2:3
...
set terminal postscript
set out 'final.ps'
...
plot 'ds1.d', 'ds2.d'