四个子浮动，由垂直线和水平线分隔

Question

我正在使用以下代码插入四个子浮点数：

\documentclass{article}
\usepackage[margin=0.8in]{geometry}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage[english]{babel}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage{float}
% 
\newcommand{\rulesep}{\unskip\ \vrule\ }
% 
\begin{document}
% 
\begin{figure}[H]
  \centering
  \captionsetup[subfigure]{justification=centerlast}
  \begin{subfigure}{.44\linewidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
     \caption[Short caption]{Isosurface corresponding to $H_{m}(x)$.}
    \label{subfig1a}
  \end{subfigure} 
  \hfill
  \rulesep
  \begin{subfigure}{.44\linewidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
    \caption[caption]{Isosurface corresponding to $H_{m}(x).$}
    \label{subfig1b}
  \end{subfigure}
     \vspace{0.6cm}
  \hrule
   \vspace{0.6cm}\par
     \captionsetup[subfigure]{justification=centerlast}
  \begin{subfigure}{.44\linewidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
     \caption[Short caption]{Isosurface corresponding to $H_{m}(x)$.}
    \label{subfig1a}
  \end{subfigure} 
  \hfill
  \rulesep
  \begin{subfigure}{.44\linewidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
    \caption[caption]{Isosurface corresponding to $H_{m}(x).$}
    \label{subfig1b}
  \end{subfigure}
  \caption{Caption of Figure 1.}
\end{figure}
% 
\end{document}

其输出为：

我希望子图 a 和 b 之间的垂直线以及子图 c 和 d 之间的垂直线成为一条连续的线。即：

我应该对当前代码做哪些更改？有人能帮助我吗？

Answer 1

您想使用tabular。

对于如此大的浮动，这种选择[H]显然是不合适的。它应该绝不被实际使用。

说实话，我不会使用这些规则：它们对于清晰度没有任何帮助。

\documentclass{article}
\usepackage[margin=0.8in]{geometry}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage[english]{babel}
\usepackage{graphicx}
\usepackage{subcaption}

\captionsetup[subfigure]{justification=centerlast}

\begin{document}
% 
\begin{figure}[htp]
\centering
\begin{tabular}{@{} c|c @{}}
  \begin{subfigure}{.44\columnwidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
     \caption[Short caption]{Isosurface corresponding to $H_{m}(x)$.}
    \label{subfig1a}
  \end{subfigure}
&
  \begin{subfigure}{.44\columnwidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
    \caption[caption]{Isosurface corresponding to $H_{m}(x).$}
    \label{subfig1b}
  \end{subfigure}
\\
& \\
\hline
& \\
  \begin{subfigure}{.44\columnwidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
     \caption[Short caption]{Isosurface corresponding to $H_{m}(x)$.}
    \label{subfig1a}
  \end{subfigure} 
&
  \begin{subfigure}{.44\columnwidth}
    \centering
    \includegraphics[width=6.5cm,height=9.5cm]{example-image-duck}
    \caption[caption]{Isosurface corresponding to $H_{m}(x).$}
    \label{subfig1b}
  \end{subfigure}
\end{tabular}

\caption{Caption of Figure 1.}
\end{figure}

\end{document}