Implementing a 3x4 subfigure

Question

I would like to implement the following figure in LaTeX, including the axis labels. (Assume that in this image matrix there are 12 individual square pictures ... can I fix the size of the individual square?)

How can this be done? I have worked with the packages graphicx, subcaption and subfigure before, but I do not quite understand them well enough to do this.

The figure should have width=0.8\textwidth and go in between two text paragraphs.

Thank you for any advice.

This is how it should look:

text blablabla

text blablabla

Two options: the floatrow package gives you more control over positioning subfigures and captions. But in this case I would revert to two other packages: tikz which is very versatile in positioning nodes (the images in this case) and tabularray since your layout strongly resembles a table with figures and a row / column designator. — alchemist, May 28 '23 at 18:28

Zarko · Accepted Answer · 2023-05-29T02:16:57.170

One way is to put images in table, for example based on tabularray package, and in the first column and row write desired informations about images.
For vertical positioning of images you need to move images baselines to their vertical center. For this is sensible to use package adjustbox. - - By using it, you can also determine common settings for images.
For rotating of texts in the first column are used packages rotating and makecell for the \rothead command:

\documentclass{article}
\usepackage[export]{adjustbox}
\usepackage{rotating}
\usepackage{makecell}
\usepackage{tabularray}
\begin{document}
    \begin{figure}[ht]
    \settowidth\rotheadsize{merge}
\adjustboxset{width=\linewidth,valign=c}
\begin{tblr}{colsep=1pt,
             colspec = {@{} Q[c,m] *{4}{X[c]} @{} },
             cell{2-Z}{1} = {cmd=\rothead},
             rowsep  = 1pt
             }
        \centering
    & 1:0   & 1000:1    &   100:1   &   10:1            \
mCh
    &   \adjincludegraphics{example-image-a}
        &   \adjincludegraphics{example-image-b}
            &   \adjincludegraphics{example-image-c}
                &   \adjincludegraphics{example-image}     \
eGFP
    &   \adjincludegraphics{example-image-a}
        &   \adjincludegraphics{example-image-b}
            &   \adjincludegraphics{example-image-c}
                &   \adjincludegraphics{example-image}     \
merge
    &   \adjincludegraphics{example-image-a}
        &   \adjincludegraphics{example-image-b}
            &   \adjincludegraphics{example-image-c}
                &   \adjincludegraphics{example-image}     \
\end{tblr}
\caption{Caption for figure}
\label{fig:required}
    \end{figure}
\end{document}

score 5 · Answer 2 · answered May 28 '23 at 21:42

Since the OP's description contains neither caption nor figure number, I assume that no label or reference to it is needed. I therefore construct the image as a simple tabbed stack. The vertical and horizontal gap between rows and columns can be adjusted to suit.

\documentclass{article}
\usepackage{graphicx,tabstackengine,lipsum}
\setstacktabbedgap{3pt}
\begin{document}
\lipsum[3]
\bigskip\noindent\tabbedShortstack{
 &1:0 & 1000:1 & 100:1 & 10:1\
\rotatebox[origin=c]{90}{mCh\strut}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-a}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-b}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-c}}\
\rotatebox[origin=c]{90}{eGFP\strut}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-a}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-b}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-c}}\
\rotatebox[origin=c]{90}{merge\strut}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-a}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-b}}&
  \raisebox{-.45\height}{\includegraphics[width=.2\textwidth]{example-image-c}}
}\bigskip
\lipsum[2]
\end{document}

score 3 · Answer 3 · answered May 28 '23 at 22:13

Assuming your images have the same proportions, you can make a tabular* with vertically centered images (using an inner tabular).

I define local commands for the job, so not to clutter input.

\documentclass{article}
\usepackage{graphicx}
\begin{document}
\begin{figure}[htp]
% local commands to ease input
\newcommand{\imagewidth}{\dimexpr(\columnwidth-\ht\strutbox-\dp\strutbox-12pt)/4\relax}
\newcommand{\addimage}[1]{%
  \begin{tabular}{@{}c@{}}
  \includegraphics[width=\imagewidth]{#1}
  \end{tabular}%
}
\newcommand{\addlabel}[1]{%
  \begin{tabular}{@{}c@{}}
  \rotatebox{90}{#1\strut}
  \end{tabular}%
}
% locally set \tabcolsep to zero
\setlength{\tabcolsep}{0pt}
\begin{tabular*}{\columnwidth}{@{}r@{\extracolsep{\fill}}cccc@{}}
& 1:0 & 1000:1 & 100:1 & 10:1 \
\addlabel{mCh} &
\addimage{example-image} &
\addimage{example-image-a} &
\addimage{example-image-b} &
\addimage{example-image-c} \
\addlabel{eGFP} &
\addimage{example-image} &
\addimage{example-image-a} &
\addimage{example-image-b} &
\addimage{example-image-c} \
\addlabel{merge} &
\addimage{example-image} &
\addimage{example-image-a} &
\addimage{example-image-b} &
\addimage{example-image-c}
\end{tabular*}
\caption{This is a $3\times 4$ arrangement of figures}
\end{figure}
\end{document}

Implementing a 3x4 subfigure

3 Answers3