下にキャプションが 1 つ、横にキャプション/凡例が 1 つある図

Question

キャプションを下に残したまま、画像の横に凡例を追加する方法を探しています。

現在、次のコードがあります:

\begin{figure}
\centering
\includegraphics[height=4cm]{example-image-a}
\caption{
    This is my caption
}
\label{fig:this-is-my-label}
\end{figure}

結果は次の画像になります。

つまり、画像の右側または左側に凡例を追加する方法を探しています。よろしくお願いします!

Answer 1

minipage環境内の2 つの sidy by side の助けを借りて、figure次のことを実現できます。

\documentclass{article}

\usepackage{graphicx}
\usepackage[export]{adjustbox}

\begin{document}

\begin{figure}
\begin{minipage}{0.725\textwidth}
\hfill
\includegraphics[height=4cm]{example-image-a}
\end{minipage}
\hfill
\begin{minipage}{0.2\textwidth}
This is my legend. This is my legend.  This is my legend.  This is my legend.  This is my legend. 
\end{minipage}
\caption{This is my caption}
\label{fig:this-is-my-label}
\end{figure}

\begin{figure}
\begin{minipage}{0.2\textwidth}
This is my legend. This is my legend.  This is my legend.  This is my legend.  This is my legend. 
\end{minipage}
\hfill
\begin{minipage}{0.725\textwidth}
\includegraphics[height=4cm]{example-image-a}
\end{minipage}
\caption{This is my caption}
\label{fig:this-is-my-label}
\end{figure}

\begin{figure}
\begin{minipage}[t]{0.725\textwidth}
\hfill
\includegraphics[height=4cm,valign=t]{example-image-a}
\end{minipage}
\hfill
\begin{minipage}[t]{0.2\textwidth}
This is my legend. This is my legend.  This is my legend.  This is my legend.  This is my legend. 
\end{minipage}
\caption{This is my caption}
\label{fig:this-is-my-label}
\end{figure}

\end{document}

Answer 2

\documentclass{article}
\usepackage[export]{adjustbox}
\usepackage{tabularx}

\begin{document}
    \begin{figure}[ht]
\centering
\begin{tabularx}{0.8\linewidth}{XX}
\includegraphics[height=4cm, width=\linewidth, keepaspectratio,
                 valign=c]{example-image-duck} 
    &   Legend: some long explanation of image  \\
\caption{This is my caption in two lines}
\label{fig:this-is-my-label}
    &
    \end{tabularx}
    \end{figure}
or
    \begin{figure}[ht]
\centering
\begin{tabularx}{0.8\linewidth}{XX}
\includegraphics[height=4cm, width=\linewidth, keepaspectratio,
                 valign=c]{example-image-duck}
    &   Legend: some long explanation of image  \\
    \end{tabularx}
\caption{This is my caption in one line}
\label{fig:this-is-my-label}
    \end{figure}
\end{document}