Not classical distribution of multiple images

Question

I'm using the packages \usepackage[font=small]{caption}, \usepackage{graphicx} and \usepackage[font=small, subrefformat=parens]{subcaption} and I would like to organize 7 images like this:

Is there a way to achieve it with these packages?

Answer 1

You can put two subfigure environments abreast and inside the second one you can work with the command \subcaptionbox:

\documentclass{article}
\usepackage{tikz}
\newcommand\mypicture[1][1cm]{\tikz\node[draw,rectangle, minimum width=#1,minimum height={2*#1},rounded corners]{};}

\usepackage[font=small]{caption}
\usepackage[font=small, subrefformat=parens]{subcaption}
\begin{document}
\begin{figure}[!ht]
  \begin{subfigure}[b]{.3333\linewidth}
    \centering\mypicture[2cm]
     \caption{}\label{fig:1a}
  \end{subfigure}%
  \begin{subfigure}[b]{.6666\linewidth}
    \centering
    \subcaptionbox{\label{fig:1b}}[.3333\linewidth]{\mypicture}\hfill%
    \subcaptionbox{\label{fig:1c}}[.3333\linewidth]{\mypicture}\hfill%
    \subcaptionbox{\label{fig:1d}}[.3333\linewidth]{\mypicture}

    \subcaptionbox{\label{fig:1e}}[.3333\linewidth]{\mypicture}\hfill%
    \subcaptionbox{\label{fig:1f}}[.3333\linewidth]{\mypicture}\hfill%
    \subcaptionbox{\label{fig:1g}}[.3333\linewidth]{\mypicture}
  \end{subfigure}%
\end{figure}

\begin{verbatim}
\ref{fig:1a}\quad\ref{fig:1b}\quad
\ref{fig:1c}\quad\ref{fig:1d}\quad
\ref{fig:1e}\quad\ref{fig:1f}\quad\ref{fig:1g}
\end{verbatim}
\ref{fig:1a}\quad\ref{fig:1b}\quad
\ref{fig:1c}\quad\ref{fig:1d}\quad
\ref{fig:1e}\quad\ref{fig:1f}\quad\ref{fig:1g}
\end{document}