How to rename `\thefigure` only inside list of figure and remove some other of them?

Question

I use caption package and use figure inside theorem environment. Most of my theorem have only 1 figure but sometimes 1 of them has more figures. I usually renew \thecaption to renumber the figure such as (These figure have no captionname)

In list of figure (right image), I want to remove figure 1.16b (only inside list) and change thefigure 1.16a to be 1.16 (delete a letter, only inside list). How should I do?

See my document below

\documentclass{article}

\usepackage{caption}
\usepackage{amsthm}
\newtheorem{theorem}{Theorem}[section]
\renewcommand{\thefigure}{\textbf{\thetheorem}}
\setcounter{theorem}{15}
\renewcommand{\figurename}{\textbf{Figure}}

\begin{document}
\section{Figure}

\begin{theorem}
Some thing
\begin{figure}[h]
\renewcommand{\thefigure}{\textbf{\thetheorem a}}
  \caption[a]{My caption 1}
\end{figure}
and something
\begin{figure}[h]
\renewcommand{\thefigure}{\textbf{\thetheorem b}}
  \caption{My caption 2}
\end{figure} 

\end{theorem}


\begin{theorem}
Some thing
\begin{figure}[h]
  \caption[a]{My caption 3}% Does not appear in LoF
\end{figure}
and something
\end{theorem}
\listoffigures

\end{document}

I find this confusing. If you have sub figures, you should use the numbering as is and not introduce a different numbering scheme. And please provide a compilable document, not just fragments — , Jun 01 '17 at 15:29
redefining \thefigure within the document is a very odd thing to do. Your question would be clearer if you showed some example input and described the desired numbering scheme, — David Carlisle, Jun 01 '17 at 15:46

score 3 · Accepted Answer · answered Jun 02 '17 at 02:50

One solution is to stop using \caption altogether.

\documentclass{article}

\usepackage{caption}
\usepackage{amsthm}
\newtheorem{theorem}{Theorem}[section]
\renewcommand{\thefigure}{\textbf{\thetheorem}}
\setcounter{theorem}{15}
\renewcommand{\figurename}{\textbf{Figure}}

\begin{document}
\section{Figure}

\begin{theorem}
Some thing
\begin{figure}[h]
  \makebox[\textwidth]{\textbf{Figure \thetheorem a}: My caption 1}
  \addtocontents{lof}{\string\contentsline{figure}{\string\numberline {\string\textbf{\thetheorem}}%
    {\ignorespaces Alternate caption}}{\thepage}}
\end{figure}
and something
\begin{figure}[h]
  \makebox[\textwidth]{\textbf{Figure \thetheorem b}: My caption 2}
\end{figure} 

\end{theorem}


\begin{theorem}
Some thing
\begin{figure}[h]
  \makebox[\textwidth]{\textbf{Figure \thetheorem}: My caption 3}
  \addtocontents{lof}{\string\contentsline{figure}{\string\numberline {\string\textbf{\thetheorem}}{}}{\thepage}}% no caption
\end{figure}
and something
\end{theorem}
\listoffigures

\end{document}

How to rename `\thefigure` only inside list of figure and remove some other of them?

1 Answers1

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