Put figures into longtable

floatslongtable

Below is my code where I'm trying to put figures into longtable. I'm wondering how can I decrease the spaces between figures (columns) and how can I stretch the figures to both margins?

\documentclass[letter]{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety
\usepackage[showframe]{geometry}

\begin{document}

\noindent\rule{\textwidth}{20\baselineskip}

\renewcommand{\LTcaptype}{figure}%
\begin{longtable}{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig: cc}}
\endhead
\includegraphics[width=.31\textwidth]{example-image-duck} & 
\includegraphics[width=.31\textwidth]{example-image-duck} & 
\includegraphics[width=.31\textwidth]{example-image-duck}\\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
\end{longtable}

\end{document}

Best Answer

I suggest defining your own environment so as not to litter the document with instructions that should be local.

\documentclass{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety

\usepackage[pass,showframe]{geometry}

\newenvironment{longfigure}[2][]{%
  % #1 (optional) is arbitrary code to be executed before the longtable
  % #2 is the column specification
  \renewcommand{\LTcaptype}{figure}%
  \setlength{\LTleft}{0pt}%
  #1%
  \begin{longtable}{#2}
}{\end{longtable}\addtocounter{figure}{-1}}

\begin{document}

\noindent\rule{6pt}{20\baselineskip}

\begin{longfigure}[\setlength{\tabcolsep}{0.01\textwidth}]{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig:cc}}
\endfirsthead
  \caption*{Empirical Regularities During Currency Crises (continued)}
\endhead
\includegraphics[width=0.32\textwidth]{example-image-duck} & 
\includegraphics[width=0.32\textwidth]{example-image-duck} & 
\includegraphics[width=0.32\textwidth]{example-image-duck}\\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
\end{longfigure}

\end{document}

The magic factor 0.01 for the \tabcolsep comes from the fact that we have three columns, each 32% of the \textwidth, so we need to divide the remaining space in four parts.

A modification for using subfigure:

\documentclass{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety
\usepackage{subcaption}

\usepackage[pass,showframe]{geometry}

\newenvironment{longfigure}[2][]{%
  % #1 (optional) is arbitrary code to be executed before the longtable
  % #2 is the column specification
  \renewcommand{\LTcaptype}{figure}%
  \expandafter\def\csname @captype\endcsname{figure}%
  \setcounter{subfigure}{0}%
  \setlength{\LTleft}{0pt}%
  #1%
  \begin{longtable}{#2}
}{\end{longtable}\addtocounter{figure}{-1}}

\begin{document}

\noindent\rule{6pt}{20\baselineskip}

\begin{longfigure}[\setlength{\tabcolsep}{0.01\textwidth}]{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig:cc}}
\endfirsthead
  \caption*{Empirical Regularities During Currency Crises (continued)}
\endhead
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\end{longfigure}

\end{document}

Since barbara beeton commented about the awkward spacing, here's a workaround.

\documentclass{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety
\usepackage{subcaption}

\usepackage[pass,showframe]{geometry}

\newenvironment{longfigure}[2][]{%
  % #1 (optional) is arbitrary code to be executed before the longtable
  % #2 is the column specification
  \renewcommand{\LTcaptype}{figure}%
  \expandafter\def\csname @captype\endcsname{figure}%
  \setcounter{subfigure}{0}%
  \setlength{\LTleft}{0pt}%
  #1%
  \begin{longtable}{#2}
}{\end{longtable}\addtocounter{figure}{-1}}

\begin{document}

\noindent\rule{6pt}{20\baselineskip}

\begin{longfigure}[{%
  \AtEndEnvironment{subfigure}{\vspace{4pt}}%
  \captionsetup[subfigure]{aboveskip=1pt}%
  \setlength{\tabcolsep}{0.01\textwidth}%
}]{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig:cc}}
\endfirsthead
  \caption*{Empirical Regularities During Currency Crises (continued)}
\endhead
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\end{longfigure}

\end{document}

Related Solutions

[Tex/LaTex] Longtable continues into footer

Could you really not make a more minimal example? longtable is a bit confused by the floating table. If you put \clearpage in front of that table it gets back in sync.

I do not have all the packages you referenced but could still see the effect if I ignored the missing package error (so clearly the example could be more minimal)

You also want to remove all \begin{center} around your longtables as they have no affect on centering and just produce anomalous vertical space. Also

\newcommand{\mytable}[4]{
  \begin{table}[htp!]

not including t is an error (LaTeX warns of that when you run the file, and not including p makes it far more likely the table foes to the end of the document.

and you have a missing percent here

  \end{table}%
}

Put some commands into longtable by \AtBeginEnvironment

I might be wrong. I think you cannot use the \AtBeginEnvironment hook to set the longtable environment.

See etoolbox package P.5:

\AtBeginEnvironment{<environment>}{<code>} Appends arbitrary code to a hook executed by the \begin command at the beginning of a given environment, immediately before \<environment>, inside the group opened by \begin.

From my understanding, this means the code will be executed outside the longtable environment. So such as \caption, \afterfirsthead cannot be used at this point.

If you don't want type the same commands over and over again for each longtable environment, I think there is a workaround to define a macro with the codes you want to input in your preamble. like this:

\newcommand{\ltbsetting}{
\caption{A sample long table.} \label{tab:long} \\
\hline \multicolumn{1}{|c|}{\textbf{First column}} & \multicolumn{1}{c|}{\textbf{Second column}} & \multicolumn{1}{c|}{\textbf{Third column}} \\
\hline\endfirsthead
\caption*{\small Окончание Таблицы \thetable} \\
\hline\endhead
\hline\endfoot
}

And use this macro everytime you have a longtable environment:

\begin{longtable}{|l|l|l|}
\ltbsetting
One & abcdef ghjijklmn & 123.456778 \\
One & abcdef ghjijklmn & 123.456778 \\
One & abcdef ghjijklmn & 123.456778 \\
One & abcdef ghjijklmn & 123.456778 \\
...
...

Also, you should notice, I put the \small in side the \caption command. I think that is what you wanted. The caption will be small not the rest of the table.

Best Answer

Related Solutions

[Tex/LaTex] Longtable continues into footer

Put some commands into longtable by \AtBeginEnvironment

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