Created
July 26, 2019 15:26
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[gnuplot] 3-axis graph script
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#for gnuplot | |
#http://www.gnuplot.info/ | |
#"data.dat"はグラフデータ | |
reset | |
#latexで出力 | |
set terminal tikz | |
set output "graph.tex" | |
#複数のグラフを書いて重ねる | |
set multiplot | |
#グラフの軸の位置を固定して共有する | |
set lmargin screen 0.1 | |
set rmargin screen 0.85 | |
set bmargin screen 0.95 | |
set tmargin screen 0.05 | |
#凡例を一致させるために用意 | |
set style line 1 lt 1 pt 7 | |
set style line 2 lt 2 pt 5 dt 2 | |
set style line 3 lt 3 pt 9 dt 4 | |
#x軸範囲 | |
set xr [1000:4000] | |
#y1軸範囲 | |
set yr [0:40.0] | |
#線図以外は書かない(重なるため) | |
unset key | |
set noxtics | |
set noytics | |
set noy2tics | |
unset border | |
#1st | |
plot \ | |
"data.dat" using 1:3 smooth csplines ls 1 axis x1y1,\ | |
"data.dat" using 1:3 ls 1 axis x1y1 | |
#2nd | |
#y2軸範囲 | |
set y2r [50:80] | |
plot \ | |
"data.dat" using 1:2 smooth csplines ls 2 axis x1y2 notitle,\ | |
"data.dat" using 1:2 ls 2 axis x1y2 notitle,\ | |
#3rd | |
#y2軸範囲 | |
set y2r [200:600] | |
plot \ | |
"data.dat" using 1:4 smooth csplines ls 3 axis x1y2 notitle,\ | |
"data.dat" using 1:4 ls 3 axis x1y2 notitle,\ | |
#y2[50:80]軸を描画 | |
set y2r [50:80] | |
#y2軸の描画範囲指定(開始地点,間隔,終了地点) | |
set y2tics 70,5,80 | |
set my2tics 2 | |
#ダミー描画でy2軸を描画する(y=1/0は描画されない) | |
plot 1/0 notitle | |
#枠 & 凡例 & x軸 & y軸 & y2[200:600]軸 描画 | |
#枠設定 | |
set border | |
#軸ラベル設定 | |
set xl "回転数$n$[rpm]" | |
set yl "軸出力$N_\\mathrm b$[kW]" | |
set y2l "燃料消費率$b_\\mathrm e$[\\si{g/kW\\cdot h}] トルク$T_\\mathrm b$[\\si{N\\cdot m}]" | |
#x軸設定 | |
set xtics | |
set mxtics 2 | |
#y軸設定 | |
set ytics nomirror | |
set mytics 2 | |
#y2[200:600]軸設定 | |
set y2r [200:600] | |
set y2tics 200,50,300 | |
set my2tics 2 | |
#凡例設定 | |
set key spacing 1.5 | |
set key at 3900,20 | |
set key box | |
#全部描画する | |
#凡例を描画するために同じline styleでtitleつけてダミー描画 | |
plot 1/0 ls 1 w lp t "$N_\\mathrm b$",\ | |
1/0 ls 2 w lp t "$T_\\mathrm b$",\ | |
1/0 ls 3 w lp t "$b_\\mathrm e$" | |
#他に影響あったら嫌なのでモード解除 | |
unset multiplot |
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