答案1
我建议您加载subfigure
包,使用minipage
环境放置前三个子图,并使用普通subfigure
环境放置第四个子图。(显然,0.65\textwidth
和的相对宽度0.3\textwidth
以及height
1.5cm 和 3.85cm 的值只是为了说明。您的实际数字可能有不同的尺寸。)
\documentclass[demo]{article} % remove 'demo' option in real doc.
\usepackage{graphicx,subcaption}
\renewcommand\figurename{Illustration}
\captionsetup[figure]{singlelinecheck=false}
\captionsetup[subfigure]{singlelinecheck=true}
\begin{document}
\begin{figure}
\begin{minipage}{0.65\textwidth}
\begin{subfigure}{\linewidth}
\includegraphics[width=\linewidth,height=1.5cm]{graph_a}
\caption{Picture 1}
\end{subfigure}
% the following line must be blank, to create a line break:
\medskip
\begin{subfigure}{0.47\linewidth}
\includegraphics[width=\linewidth,height=1.5cm]{graph_b}
\caption{Picture 2}
\end{subfigure}\hspace{\fill}
\begin{subfigure}{0.47\linewidth}
\includegraphics[width=\linewidth,height=1.5cm]{graph_c}
\caption{Picture 3}
\end{subfigure}
\end{minipage}\hspace{\fill}
\begin{subfigure}{0.3\textwidth}
\includegraphics[width=\linewidth,height=3.85cm]{graph_d}
\caption{Picture 4}
\end{subfigure}
\caption{My pictures}
\end{figure}
\end{document}