Gnuplot 多点打印中的行标题

在下图中，每行对应一个不同的大小写/参数。参数从上到下依次为

nmesh-2

，

nmesh-4

，

nmesh-6

，

nmesh-8

。我想将每个参数写入ylabel或

已用时间的左侧。换句话说，我想要一个“行标题”。如果参数名大于，并按
经过的时间旋转，也会很好。我的代码包括文件名，但万一我也包括了它


可能最简单的方法是使用多行标签：

set ylabel "nmesh-2\n\nElapsed time"

然而，这种解决方案的灵活性相当有限。作为替代方案，可以使用
set multiplot
和
margins
选项，以确保整个multiplot的全局左边距中有足够的“行标题”空间，手动计算屏幕坐标中单个“行标题”的坐标，并在最后一个绘图中渲染它们：

set terminal pngcairo size 1900,990 enhanced
set output 'fig.png'

numOfRows = 4
marginLeft = 0.1
marginRight = marginLeft/2
marginV = 0.1
plotSpacing = marginV / 2
plotHeight = (1. - 2*marginV - (numOfRows-1)*plotSpacing) / numOfRows
labelPos(i) = 1. - (marginV + plotHeight/2 + i*(plotHeight + plotSpacing))

params = "nmesh-2 nmesh-4 nmesh-6 nmesh-8"

set multiplot layout numOfRows,7 margins marginLeft,1-marginRight,marginV,1-marginV spacing plotSpacing

set key autotitle columnhead
set boxwidth 0.5
set style fill transparent solid
set nokey

set xtics rotate by -45

np = "8 12 16 20 24 28 32"
do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel 'Elapsed time'
    }
    else {
        unset ylabel
    }
    set title sprintf("np-%s", word(np, IDX))
    plot sin(x) w l
}
set notitle
do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel 'Elapsed time'
    }
    else {
        unset ylabel
    }
    plot sin(x) w l
}
do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel 'Elapsed time'
    }
    else {
        unset ylabel
    }
    plot sin(x) w l
}


do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel "Elapsed time"
    }
    else {
        unset ylabel
    }

    if (IDX == 7) {
      do for [j=1:4] {
        set label word(params, j) at screen marginLeft/2, screen labelPos(j-1) offset char -2, 0 center rotate by 90 font "Arial,16"
      }
    }
    plot sin(x) w l
}

这将产生：
您可以简单地使用类似于
设置标签
的东西，因为它允许您根据需要设置位置和方向。@Vladimir
设置标签
是此解决方案的基础-上面脚本中唯一稍微复杂一点的事情是计算坐标，将它们放在何处哇，我的坏，我没有深入研究代码，我只是检查了文本部分，对不起
set terminal pngcairo size 1900,990 enhanced
set output 'fig.png'

numOfRows = 4
marginLeft = 0.1
marginRight = marginLeft/2
marginV = 0.1
plotSpacing = marginV / 2
plotHeight = (1. - 2*marginV - (numOfRows-1)*plotSpacing) / numOfRows
labelPos(i) = 1. - (marginV + plotHeight/2 + i*(plotHeight + plotSpacing))

params = "nmesh-2 nmesh-4 nmesh-6 nmesh-8"

set multiplot layout numOfRows,7 margins marginLeft,1-marginRight,marginV,1-marginV spacing plotSpacing

set key autotitle columnhead
set boxwidth 0.5
set style fill transparent solid
set nokey

set xtics rotate by -45

np = "8 12 16 20 24 28 32"
do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel 'Elapsed time'
    }
    else {
        unset ylabel
    }
    set title sprintf("np-%s", word(np, IDX))
    plot sin(x) w l
}
set notitle
do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel 'Elapsed time'
    }
    else {
        unset ylabel
    }
    plot sin(x) w l
}
do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel 'Elapsed time'
    }
    else {
        unset ylabel
    }
    plot sin(x) w l
}


do for [IDX=1:7] {
    if (IDX == 1) {
        set ylabel "Elapsed time"
    }
    else {
        unset ylabel
    }

    if (IDX == 7) {
      do for [j=1:4] {
        set label word(params, j) at screen marginLeft/2, screen labelPos(j-1) offset char -2, 0 center rotate by 90 font "Arial,16"
      }
    }
    plot sin(x) w l
}