Controlling captions for subfigures

captionssubcaptionsubfloats

I want to move around the positions of subfigures as follows.

Move the Panel 3 figure below the Panel 2 figure;
Move the captions below the Panel 1 figure; and if possible
Align the subcaptions at the left of each subfigure.

How could I achieve these?

\documentclass[a4paper,11pt]{report}
\usepackage{graphicx}
\usepackage{subfig}
\usepackage{tabularx}
\usepackage{caption}

\newcommand\mycaption[2]{\caption{\textbf{#1}\newline\footnotesize#2}}
\captionsetup{font=small, labelfont=bf, singlelinecheck=false, tableposition=bottom, justification=justified}
\begin{document}

% test 
\begin{figure}[t!]
\centering
\captionsetup{width=0.5\linewidth}
\subfloat[Panel 1]{
    \label{fig1}
    \includegraphics[clip,width=0.45\columnwidth]{example-image}}% 
\quad
\subfloat[Panel 2]{
    \label{fig2}
    \includegraphics[clip,width=0.45\columnwidth]{example-image}}%
\hfill 
\subfloat[Panel 3]{
    \label{fig3}
    \includegraphics[clip,width=0.45\columnwidth]{example-image}}%
\mycaption{PPC eigenvectors.}{I want to place Panel 3 figure below Panel 2 figure. 
Then write the captions next to Panel 3 (below Panel 1). If possible, I would also like to align the subfigure labels at the left of a image.}
\label{fig}
\end{figure}
\end{document}

Best Answer

First, (almost) every time you end a line with { or } you are adding a space. Specifically, you are adding two spaces before the image.

Second, you can put the \caption into a minipage to reduce the width. Setting the width using \captionsetup doesn't help since \caption begins and ends with \par.

Third, I used a savebox to prevent resetting the subfigure counter. One could also use \setcounter{subfigure}{2}., The savebox can also be used to help adjust the alignment (if desired).

\documentclass[a4paper,11pt]{report}
\usepackage{graphicx}
\usepackage{tabularx}
\usepackage{subcaption}

\newcommand\mycaption[2]{\caption{\textbf{#1}\newline\footnotesize#2}}

\captionsetup{font=small, labelfont=bf, singlelinecheck=false, tableposition=bottom, justification=justified}
  
\begin{document}

% test 
\begin{figure}[t!]
\centering
\subfloat[Panel 1\label{fig1}]{%
    \includegraphics[clip,width=0.45\columnwidth]{example-image}}% 
\hfil
\subfloat[Panel 2\label{fig2}]{%
    \includegraphics[clip,width=0.45\columnwidth]{example-image}}%
\vskip\floatsep
\sbox0{%
\subfloat[Panel 3\label{fig3}]{% measuer width and height
    \includegraphics[clip,width=0.45\columnwidth]{example-image}}%
}%
\begin{minipage}[b]{0.45\columnwidth}%
\mycaption{PPC eigenvectors.}{I want to place Panel 3 figure below Panel 2 figure. 
Then write the captions next to Panel 3 (below Panel 1). If possible, I would also like to align the subfigure labels at the left of a image.}
\label{fig}
\end{minipage}
\hfil
\usebox0
\end{figure}
\end{document}

Related Solutions

[Tex/LaTex] LaTeX Error: File subfigure.sty not found

In case you installed TeX Live from the packages of a Linux distro: Most distros split less-used LaTeX-packages into separate (Linux-distro)-packages. From the link in your question I assume that you are running Arch Linux. In this case you need to install the texlive-latexextra package which contains subfigure.sty. If you are using a different distro, the necessary package might be named differently (e.g. texlive-latex-extra in Debian/Ubuntu).

Also, as Peter notes, the subfigure package is depreciated.

[Tex/LaTex] Subfigures with Captions Above AND Below

The title is a little ambiguous; do you want one subfigure with two captions, one above and the other below, or do you want two subfigures, one subfigure with its caption below and another one with its caption above?

Anyway, I present a possible solution for both cases. For the first one, the idea is to use "fake" subfigures having no height but with the same width of the actual subfigures (I used \rules); the captions for those fake subfigures will be the above captions for the real ones.

The second case is a little more involved and required the use of the powerful floatrow package.

The code (depending on your actual figures you might need to adjust the lengths I used in my example):

\documentclass{article}
\usepackage[a6paper]{geometry}% just for the example
\usepackage[demo]{graphicx}
\usepackage{subfig}
\usepackage{floatrow}
\captionsetup[subfigure]{labelformat=empty,justification=raggedright} 

\begin{document}

\begin{figure}
\subfloat[A subfigure with a caption above]{\rule{3cm}{0pt}}\quad
\subfloat[Another subfigure with a caption above]{\rule{3cm}{0pt}}\\[0.6ex]
\subfloat[A subfigure with a caption below]{\includegraphics[width=3cm,height=2cm]{image1}}\quad
\subfloat[Another subfigure with a caption below]{\includegraphics[width=3cm,height=2cm]{image2}}
\caption{A figure with two subfigures}
\label{fig:test1}
\end{figure}

\begin{figure}
\ffigbox[\FBwidth]
{\begin{subfloatrow}
\ffigbox[\FBwidth]
  {\caption{A subfigure with a caption below}}
  {\includegraphics[width=3cm,height=2cm]{image1}}
\floatsetup[subfigure]{capposition=TOP}
\raisebox{1.3\height}{%
\ffigbox[\FBwidth]
  {\caption{A subfigure with a caption above}}  
  {\includegraphics[width=3cm,height=2cm]{image1}}
}%
\end{subfloatrow}}
{\caption{Another figure with two subfigures\label{fig:test2}}}
\end{figure}

\end{document}

enter image description here

The demo option for graphicx simply replaces actual figures with black rectangles; do not use that option in your actual document.

Best Answer

Related Solutions

[Tex/LaTex] LaTeX Error: File subfigure.sty not found

[Tex/LaTex] Subfigures with Captions Above AND Below

Related Question