将子标题放在垂直对齐的子图的右侧

Question

我正在努力寻找解决问题的方法。我想要这样的东西

但对于垂直对齐的子图，为了节省一些垂直空间（我无法将尺寸缩小到比这更多）

我正在使用\subfig包来对齐我的子图。这是我的代码：

\begin{figure}[ht!]

        \centering
        \begin{minipage}{\textwidth}
            \centering
            \subfloat[]
            {
                \includegraphics[width=0.6\textwidth, keepaspectratio]{fig_a}
                \label{fig:a}
            }
        \\
        \centering
            \subfloat[]
            {
                \includegraphics[width=0.6\textwidth, keepaspectratio]{fig_b}
                \label{fig:b}
            }
            \\
            \centering
            \subfloat[]
            {
                \includegraphics[width=0.6\textwidth, keepaspectratio]{fig_c}
                \label{fig:c}
            }
            \caption{Three figures, take too much vertical space}
            \label{fig:unified}
        \end{minipage}
    \end{figure}

感谢您的任何帮助！

Answer 1

请注意，只有图像位于中心，而不是标题。

理想情况下，应该将 放在\label之后\caption，但在这种情况下这是不可能的。相反，应该将 放在\label标题内。否则，所使用的某些本地宏\label可能会丢失。

\documentclass{article}
\usepackage{graphicx}
\usepackage{subcaption}
\captionsetup[sub]{justification=raggedright,singlelinecheck=false}
\usepackage{showframe}% debuggingh tool

\makeatletter
\newcommand{\mysub}[2][]% #1=caption (optional), #2=graphics
{\bgroup
  \sbox0{#2}\usebox0
  \dimen0=\dimexpr \textwidth-\wd0\relax
  \ifx\\\@centercr \divide\dimen0 by 2\fi
  \sbox1{\begin{minipage}[t]{\dimen0}
    \subcaption{#1}%
  \end{minipage}}%
  \rlap{\raisebox{\dimexpr \ht0-\ht1}[0pt][0pt]{\usebox1}}\allowbreak
\egroup}
\makeatother

\begin{document}
    \begin{figure}[p]
            \centering
            \mysub[A very long caption, just to test the limits. \label{fig:a}]
            {\includegraphics[width=0.6\textwidth, keepaspectratio]{example-image-a}}

            \mysub[\label{fig:b}]
            {\includegraphics[width=0.6\textwidth, keepaspectratio]{example-image-b}}

            \mysub[\label{fig:c}]
            {\includegraphics[width=0.6\textwidth, keepaspectratio]{example-image-c}}

            \caption{Three figures, take too much vertical space}
            \label{fig:unified}
    \end{figure}
\end{document}