我正在嘗試用gnuplot創建一個曲線疊加到曲面上的繪圖。 這是我使用將曲線疊加到gnuplot中的表面
#!/usr/bin/gnuplot
xwidth=16.2
set size 1,1
set terminal epslatex color size xwidth cm,0.59*xwidth font 9 header '\fontsize{10}{13.2} \usepackage[lite,subscriptcorrection,slantedGreek,nofontinfo]{mtpro2}\usepackage{amsmath} \renewcommand{\rmdefault}{ptm}' dashlength 2.0 round standalone
set output "Pernal12.tex"
set border 0 lw 0
set lmargin 0
set rmargin 0
set tmargin 0
set bmargin 0
set multiplot
####
set size 0.55,1.166
set origin 0.02,-0.035
set xrange [0:10]
set yrange [-6:6]
set zrange [0:10]
unset ylabel
unset xlabel
set format y ''
set format x ''
unset xtics
unset ytics
unset label
set view map
set isosamples 400, 400
set style data pm3d
set style function pm3d
set pm3d implicit at b
#set grid noxtics noytics noztics front
#set palette positive nops_allcF maxcolors 0 gamma 1.5 gray
set palette defined (0 "white", 10 "black")
set pm3d interpolate 1,1
spacing 1.1
set cbrange[0:10]
unset colorbox
t={1,0}
e0={1,0}
eta={0.1,0}
i={0.0,1.0}
c(x)=sqrt(16*t**2+x**2)
a(x)=sqrt(2*((4*t/(c(x)-x))**2+1))
A(x)=(1-4*t/(c(x)-x))**2
B(x)=(1+4*t/(c(x)-x))**2
Gbup(x,y)=1/a(x)**2*(A(x)/(y-(e0+t+(c(x)+x)/2)+x/2+1+i*eta)+B(x)/(y-(e0+t-(c(x)-x)/2)+x /2+1+i*eta))
Gaup(x,y)=1/a(x)**2*(B(x)/(y-(e0-t+(c(x)+x)/2)+x/2+1+i*eta)+A(x)/(y-(e0-t-(c(x)-x)/2)+x/2+1+i*eta))
splot -imag(Gbup(x,y)+Gaup(x,y))/1.01 notitle
####
unset border
set border 15 lw 1
set size 0.385,0.83
set origin 0.087,0.11
unset xtics
unset ytics
set xrange [0:10]
set yrange [-6:6]
set zrange [0:20]
set xlabel '$U/t$'
set ylabel '$\omega/t$' offset 1.0,0
set xtics 5.0
set mxtics 5
set label '$n = 1/2$' left at graph 0,1 offset 2.2,-1.6 front
set xtics ("0" 0,"" 1 1,"" 2 1,"" 3 1,"" 4 1, '5' 5,"" 6 1,"" 7 1,"" 8 1,"" 9 1, '10' 10)
set ytics ('-6' 6,"" 5 1,"-4" 4,"" 3 1,"-2" 2,"" 1 1, "0" 0,"" -1 1,"2" -2,"" -3 1,"4" -4, "" -5 1, "6" -6)
set grid noxtics noytics noztics front
plot 'Pernal12sym.dat' u ($1):(-$8) w l lw 2.5 lc rgb "green" lt 2 notitle
q
我獲得好身材的代碼,但問題是它的尺寸,超過10 MB。 我可以減小isosamples值,但是表面圖分辨率太低。 有沒有一種方法可以獲得相當高的分辨率,最終的.ps文件的尺寸低於1Mb?
我也試過在PNG表面圖年底前,也比使用這個腳本
#!/usr/bin/gnuplot
xwidth=16.2
set size 1,1
set terminal epslatex color size xwidth cm,0.59*xwidth font 9 header '\fontsize{10}{13.2} \usepackage[lite,subscriptcorrection,slantedGreek,nofontinfo]{mtpro2}\usepackage{amsmath} \renewcommand{\rmdefault}{ptm}\usepackage{graphicx}' dashlength 2.0 round standalone
set output "Pernal12.tex"
set border 0 lw 0
set lmargin 0
set rmargin 0
set tmargin 0
set bmargin 0
set multiplot
####
set size 0.55,1.166
set origin 0.02,-0.035
set xrange [0:10]
set yrange [-6:6]
set zrange [0:10]
unset ylabel
unset xlabel
set format y ''
set format x ''
unset xtics
unset ytics
unset label
plot "Pernal13.png" binary filetype=png w rgbimage
unset border
set border 15 lw 1
set size 0.385,0.83
set origin 0.087,0.11
unset xtics
unset ytics
set xrange [0:10]
set yrange [-6:6]
set zrange [0:20]
set xlabel '$U/t$'
set ylabel '$\omega/t$' offset 1.0,0
set xtics 5.0
set mxtics 5
set grid noxtics noytics noztics front
plot 'Pernal12sym.dat' u ($1):(-$8) w l lw 2.5 lc rgb "green" lt 2 notitle
q
但在救我沒有我的PNG圖片作爲.ps文件的背景。
參見例如我對TeX.SX的回答,[大數據表面圖:從tikz調用gnuplot生成位圖並自動包含?](http://stackoverflow.com/q/23927580/2604213),以獲取有關如何實現此目的的示例。如果你有機會使用5.0rc2(或者試試),你可以使用'level3'選項將'plot ... with image'的數據保存爲postscript圖像中的png。 – Christoph 2014-10-19 18:29:47