下列的这个答案,在设置ytick=\empty
第二和第三个子图时,子图分布不均匀,那么如何通过让所有子图具有相同的宽度并均匀分布来修复此输出textwidth
?
\RequirePackage{luatex85}
\documentclass{article}
\usepackage{pgfplots,caption,subcaption,mwe,showframe}
\pgfplotsset{compat=newest}
\begin{document}
\begin{figure}
\centering
\pgfmathsetlengthmacro{\myaxiswidth}{0.33\textwidth-width(" 300 ")}% subtract width of widest ticklabel, with a space on each side
\begin{subfigure}[t]{0.33\textwidth}
\begin{tikzpicture}
\begin{axis}[enlargelimits=false,width=\myaxiswidth, height=0.3\textheight, scale only axis]
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-a};
\end{axis}
\end{tikzpicture}
\end{subfigure}%
%
\begin{subfigure}[t]{0.33\textwidth}
\begin{tikzpicture}
\begin{axis}[enlargelimits=false,width=\myaxiswidth, height=0.3\textheight, scale only axis, ytick=\empty]
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-b};
\end{axis}
\end{tikzpicture}
\end{subfigure}%
%
\begin{subfigure}[t]{0.33\textwidth}
\begin{tikzpicture}
\begin{axis}[enlargelimits=false,width=\myaxiswidth, height=0.3\textheight, scale only axis, ytick=\empty]
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-c};
\end{axis}
\end{tikzpicture}
\end{subfigure}
\end{figure}
\end{document}
答案1
这里空间不同的原因是多种因素的结合。首先,由于第一块地比后两块地宽,因此第一块地从轴右侧到边缘的距离subfigure
小于后两块地。
此外,最后两个图比subfigure
环境更窄,默认情况下,其中的文本向左对齐。要修复该部分,请\centering
在每个环境的开头添加subfigure
,但这不足以使轴 1&2 和 2&3 之间的距离相等,正如上面第一段所述。
现在,可能还有其他方法,我绝对不擅长寻找优雅的解决方案,但我想到的解决方法是用于\begin{tikzpicture}[trim axis left]
所有三个图。trim axis left
是一种改变边界框的样式,tikzpicture
以便在确定边界框时不考虑(ticklabels,ylabel)左侧的任何内容axis
。这确实有不良的副作用,即第一个轴的刻度标签可能会进入左边距,但您可以通过在第一个子图之前添加一些水平空间来解决这个问题。(参见下面的代码示例。)
我还将subfigure
sa 做得稍微窄一些,并在它们之间使用\hfill
以添加填充线条的空间。
话虽如此,如果您不打算添加单独的标题,那么我会说您使用了错误的工具来完成这项工作,并使代码变得比必要的更长。我建议添加库groupplots
,pgfplots
并在同一groupplot
环境中添加所有三个图像。(我没有想到你之前的问题。)groupplots
使这种事情变得非常容易。
借助\captionof
该caption
包,您还可以添加子标题,方法是将\node
s放置在text width
相对于轴的指定位置,如下例所示。figure
不过,似乎需要对计数器进行一些调整才能获得正确的交叉引用。
\RequirePackage{luatex85}
\documentclass{article}
\usepackage{pgfplots,caption,subcaption,showframe}
\captionsetup[subfigure]{labelformat=parens}
\usepgfplotslibrary{groupplots}
\pgfplotsset{compat=newest}
\usepackage{cleveref}
\begin{document}
\begin{figure}
\centering
\begin{tikzpicture}
\begin{groupplot}[
group style={
group name=G,
group size=3 by 1,
y descriptions at=edge left,
horizontal sep=10pt % adjust as needed
},
enlargelimits=false,
width=0.33\textwidth-width("300"),
height=0.3\textheight,
scale only axis]
\nextgroupplot
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-a};
\nextgroupplot
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-b};
\nextgroupplot
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-c};
\end{groupplot}
\refstepcounter{figure} % to get correct
\node [text width=0.33\textwidth-width("300"),below right,align=center] at (G c1r1.south west) {\captionof{subfigure}{Subcaption for the first plot\label{a}}};
\node [text width=0.33\textwidth-width("300"),below right,align=center] at (G c2r1.south west) {\captionof{subfigure}{Subcaption for the second plot}};
\node [text width=0.33\textwidth-width("300"),below right,align=center] at (G c3r1.south west) {\captionof{subfigure}{Subcaption for the third plot}};
\addtocounter{figure}{-1}
\end{tikzpicture}
\caption{..}
\end{figure}
\begin{figure}
\centering
\pgfmathsetlengthmacro{\myaxiswidth}{0.33\textwidth-width("300 ")}
\hspace*{\dimexpr0.33\textwidth-\myaxiswidth}%
\begin{subfigure}[t]{0.3\textwidth}
\centering % added
\begin{tikzpicture}[trim axis left]
\begin{axis}[enlargelimits=false,width=\myaxiswidth, height=0.3\textheight, scale only axis]
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-a};
\end{axis}
\end{tikzpicture}
\caption{Subcaption for the first plot}
\label{b}
\end{subfigure}%
\hfill
\begin{subfigure}[t]{0.3\textwidth}
\centering % added
\begin{tikzpicture}[trim axis left]
\begin{axis}[enlargelimits=false,width=\myaxiswidth, height=0.3\textheight, scale only axis, ytick=\empty]
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-b};
\end{axis}
\end{tikzpicture}
\caption{Subcaption for the second plot}
\end{subfigure}%
\hfill
\begin{subfigure}[t]{0.3\textwidth}
\centering % added
\begin{tikzpicture}[trim axis left]
\begin{axis}[enlargelimits=false,width=\myaxiswidth, height=0.3\textheight, scale only axis, ytick=\empty]
\addplot graphics [xmin=0, xmax=50, ymin=0, ymax=150] {example-image-c};
\end{axis}
\end{tikzpicture}
\caption{Subcaption for the third plot}
\end{subfigure}
\caption{...}
\end{figure}
\end{document}
顶部为groupplots
代码,底部为subfigure
代码。