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I was forced to use \footnotetext and \footnotemark on because I needed a footnote in a couple of captions. Of the three times this is done in the article: one works fine, the second appears on the page after the caption and the third appears on the page before the caption.

Is there a way to get this to work properly? I tried using the footnote package but then the actual footnote text did not appear.

My preamble and example code (obviously not long enough to show that they appear on two different pages, but hopefully enough to point out if I am doing something incorrectly):

\documentclass[reqno]{amsart}
\usepackage{amssymb,latexsym}
\usepackage{graphicx}
\usepackage{setspace}
\usepackage{cite}
\usepackage{fullpage}
\usepackage{subfig}
\captionsetup[subfigure]{margin=0pt, parskip=0pt, hangindent=0pt, indention=0pt, labelformat=parens, labelfont=rm}
\newtheorem{theorem}{Theorem}
\newtheorem{lemma}{Lemma}
\newtheorem{definition}{Definition}
\newtheorem{notation}{Notation}
\linespread{1.6}

\begin{document}
\begin{figure}
\centering
\includegraphics[scale=.7]{toroids} 
\caption{A sphere, a torus, a 2-torus, a 3-torus, etc.\protect\footnotemark}
\label{fig:toroids} 
\end{figure}
\footnotetext{This figure adapted from p24 of  \cite{topo}. }
\end{document}
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This is caused by a similar problem as your last question. The \footnotetext is outside the figure and thus when the figure is moved to a different page, the footnote is not moved with it. I don't know how to solve this though. –  Caramdir Dec 14 '10 at 2:48
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2 Answers 2

up vote 3 down vote accepted

This is unlikely to be able to be done in a satisfactory way. One could envision moving the \footnotetext around based on page references. That would likely work in some cases (but be a hassle to implement) but in some cases, moving the \footnotetext would case the figure to float to another page and thus the \footnotetext would have to move again. It's quite easy to imagine that the iterative process never terminating.

Another problem is that your footnotes will be out of order. This is very easy to demonstrate.

\documentclass{article}
\begin{document}
one\footnote{one}
\begin{figure}[t]
two\footnotemark
\end{figure}
\footnotetext{two}
three\footnote{three}
\end{document}

That's almost certainly not what you want.

In most cases, footnotes in figures (or more often in tables) use different markings like an asterisk or a dagger and then the text appears in the figure caption.

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This is the method I ended up using. Thank you! –  Alec Dec 16 '10 at 19:56
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A workaround would be to put the content of the {figure} inside a {minipage}. The footnote will then appear at the bottom of the figure (not at the bottom of the page), and the numbering will be a,b,c,... instead of 1,2,3,... and will be specific to each figure.

Altough it's not exactly what you asked for, the advantage of this method is that you are sure that the footnote text and footnote number are always on the same page and it's certainly simpler than trying to hack through the float mecanism to ensure that footnote text is always on the same page as the figure.

Here's a full code example:

\documentclass{article}
\usepackage{lipsum}
\begin{document}

\lipsum[1-3]

\begin{figure}[t]
\begin{minipage}{\linewidth}\centering
\vrule height 10cm width 5cm

text\footnote{foottext}
\end{minipage}
\end{figure}

\end{document}
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the caption command yields strange results though –  pluton Dec 14 '10 at 17:29
    
@pluton: yes, it is not perfect, but you can have the footnote either before or after the caption depending on whether you put the \caption inside the {minipage} or not. And if you want more space between the caption and the footnote, you can use an appropriate \vspace. –  Philippe Goutet Dec 14 '10 at 18:21
    
I tried this quickly (I was facing a deadline for the paper I was working on), but will definitely look into this more when I run into this issue again! Thank you. –  Alec Dec 16 '10 at 19:57
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