单行中多个图形

Question

我使用以下代码在一行中添加多个图形

\begin{figure}
  \centering
  \begin{tabular}[b]{c}
    \includegraphics[width=0.20\linewidth]{image here} \\
    \small (a) Figure 1
  \end{tabular} \qquad
  \begin{tabular}[b]{c}
    \includegraphics[width=0.20\linewidth]{image here} \\
    \small (b) Figure 2
  \end{tabular} \qquad
 
  \begin{tabular}[b]{c}
    \includegraphics[width=0.20\linewidth]{image here} \\
    \small (c) Figure 3
  \end{tabular} \qquad
  \begin{tabular}[b]{c}
    \includegraphics[width=0.20\linewidth]{image here} \\
    \small (a) Figure 4
  \end{tabular} \qquad

代码可以很好地在每行添加两个图表，有人能帮忙添加 3、4 个图表吗？不幸的是，我不能使用子图表，它与期刊论文模板有些冲突

Answer 1

这使用了 tabular 不太为人熟知的堂兄 tabular* 和他的小朋友\extracolsep。

\documentclass{article}
\usepackage{graphicx}
\usepackage{showframe}% alignment tool
\begin{document}

\begin{figure}
  \tabcolsep=0pt
  \begin{tabular*}{\textwidth}{@{\extracolsep{\fill}}cccc}
    \includegraphics[width=0.20\textwidth]{example-image-a} &
    \includegraphics[width=0.20\linewidth]{example-image-b} &
    \includegraphics[width=0.20\linewidth]{example-image-c} &
    \includegraphics[width=0.20\linewidth]{example-image} \\
    \small (a) Figure 1 &
    \small (b) Figure 2 &
    \small (c) Figure 3 &
    \small (a) Figure 4
  \end{tabular*}
\end{figure}

\end{document}

---

\tabcolsep坦率地说，简单地计算需要加起来的数量\linewidth（每列 2 个）更容易。

\documentclass{article}
\usepackage{graphicx}
\usepackage{showframe}% alignment tool
\begin{document}

\begin{figure}
  \tabcolsep=0.2\linewidth
  \divide\tabcolsep by 8
  \begin{tabular}{cccc}
    \includegraphics[width=0.20\linewidth]{example-image-a} &
    \includegraphics[width=0.20\linewidth]{example-image-b} &
    \includegraphics[width=0.20\linewidth]{example-image-c} &
    \includegraphics[width=0.20\linewidth]{example-image} \\
    \small (a) Figure 1 &
    \small (b) Figure 2 &
    \small (c) Figure 3 &
    \small (d) Figure 4
  \end{tabular}
\end{figure}

\end{document}

Answer 2

• 我的主要建议是省略 4 幅图像中的第 2 幅图像后的空白行。请记住，空白行（在许多但并非所有文本模式情况下）被解释为段落分隔符。因此建议省略空白行。

• 进一步的建议：省略\centering指令，省略最后的指令，并用\qquad替换其他 3 个实例。\qquad\hfill

• 最后，如果您有相当多这种类型的图形，可能值得创建一个定制的宏（\myfig在下面的代码中调用）以帮助简化子图形的创建。

\documentclass{article} % or some other suitable document class
\usepackage{array}
\usepackage[demo]{graphicx} % remove 'demo' option in real document
\newcommand\myfig[2]{%
   \begin{tabular}[b]{>{\centering\arraybackslash}p{0.2\textwidth}} 
      \includegraphics[width=\linewidth]{#1} \\ \small #2 \end{tabular}}
\begin{document}
\begin{figure}
  \myfig{image1}{(a) Figure 1}\hfill
  \myfig{image2}{(b) Figure 2}\hfill
  \myfig{image3}{(c) Figure 3}\hfill
  \myfig{image4}{(d) Figure 4}%
\end{figure}
\end{document}

Answer 3

没有tabular（或类似的表）环境，通过使用subloat环境（如subcaption包版本 1.3 中所定义）和键，Gin您将获得最短、最简单的问题代码：

\documentclass{article} 
\usepackage{graphicx}
\usepackage{subcaption}

\begin{document}
    \begin{figure}[htb]
\setkeys{Gin}{width=0.24\linewidth}
%
\subfloat[Figure 1]{\includegraphics{example-image-duck}}\hfill
\subfloat[Figure 2]{\includegraphics{example-image-duck}}\hfill
\subfloat[Figure 3]{\includegraphics{example-image-duck}}\hfill
\subfloat[Figure 4]{\includegraphics{example-image-duck}}
    \end{figure}
\end{document}