答案1
最大的问题是顶部对齐和对齐标题。用表格解决。
\documentclass[a4paper]{article}
\usepackage[margin=2cm,heightrounded]{geometry}
\usepackage{newtxtext,newtxmath}
\usepackage{graphicx}
\usepackage[export]{adjustbox}
\usepackage{subcaption}
\begin{document}
\begin{figure*}
\setlength{\tabcolsep}{0.025\textwidth}
\begin{tabular}{@{}ccc@{}}
\includegraphics[width=0.3\textwidth,valign=T]{example-image} &
\begin{subfigure}[t]{0.3\textwidth}
\includegraphics[width=\textwidth,valign=T]{example-image}
\caption{Instantaneous impact}
\end{subfigure} &
\begin{subfigure}[t]{0.3\textwidth}
\includegraphics[width=\textwidth,valign=T]{example-image}
\caption{Near effect}
\end{subfigure} \\
\multicolumn{1}{@{}p{0.3\textwidth}}{\caption{Handover Duration}} &
\multicolumn{2}{p{0.65\textwidth}@{}}{\caption{Handover-centric Analysis of CUBIC}} \\
\begin{subfigure}[t]{0.3\textwidth}
\includegraphics[width=\textwidth,valign=T]{example-image}
\caption{Instantaneous impact}
\end{subfigure} &
\begin{subfigure}[t]{0.3\textwidth}
\includegraphics[width=\textwidth,valign=T]{example-image}
\caption{Near effect}
\end{subfigure} &
\includegraphics[width=0.3\textwidth,valign=T]{example-image} \\
\multicolumn{2}{@{}p{0.65\textwidth}@{}}{\caption{Handover-centric Analysis of BBR}} &
\multicolumn{1}{p{0.3\textwidth}@{}}{\caption{Comparative Performance}} \\
\end{tabular}
\end{figure*}
\end{document}
神奇之处0.025\textwidth
在于我们需要\tabcolsep
在中心列周围留出四个空格;图像的宽度为0.3\textwidth
。对于0.65\textwidth
,我们在列宽上添加了两个\tabcolsep
空格。