[gnuplot] splot과 plot을 동시에 사용하기2 (with and without dgrid3d)

[Ref] https://stackoverflow.com/questions/9685442/plot-two-datasets-on-the-same-graph-with-gnuplot-one-with-dgrid3d-the-other-on

[Ref] https://stackoverflow.com/questions/35818875/gnuplot-pm3d-with-contour-lines

[+] set hidden3d를 함께 사용하면 set pm3d map을 했을 떄 line이 나타나지 않는다.

[+] table은 w pm3d와 함께 사용할 수 없다. 그래서 그리기 전에 set pm3d explicit라고 해줘야 한다.

set t po eps enh color

set output 'TransitionfromTau.eps'

set border lw 1.5

#make data set

set pm3d explicit

set dgrid3d 50, 50, 50

set table "res.dat"

splot "landscape.txt" u 1:2:($3-$7>0?1:-1)

unset table

unset dgrid3d

#plot

set xtic 1

set ytic 1

set size ratio 1

set xr[0.2:5]

set yr[0.2:5]

set palette defined ( 0 "#d8b365", 1 "#f5f5f5", 2 "#5ab4ac" ) 

set pm3d map

set border lw 1.5

sp 'res.dat' w pm3d t '' , 'rm.d' u 1:2:(-1.0)  w l lw 2  lc rgb "black" t ''