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I'm working on a book using titlesec&titletoc and want to include chapters (with their numbers and names, but no page number) in the list of figures, if and only if they contain figures. Manually adding

\addtocontents{lof}{\contentsline {chapter}{\numberline {\thechapter} {#1}}{} }}

after each chapter works (#1 is the chaptername), and I could also fix the alignment (not part of MWE), but I couldn't append this to \chapter.

Can I get titletoc to include chapters into the list of figures?
Or how do I modify \chapter to add themselves to the lof?

\documentclass[a4paper,12pt]{book} \usepackage[pagestyles,psfloats,clearempty,newlinetospace]{titlesec} \usepackage{titletoc} \titleformat{\chapter}{\huge\bfseries\filcenter}{\vspace{1cm}\thechapter}{0.5cm}{}[] %\let\Oldchapter\chapter %\renewcommand{\chapter}[1]{\Oldchapter{#1}\addtocontents{lof}% %{\contentsline {chapter}{\numberline {\thechapter} {#1}}{} }} \begin{document} \tableofcontents \listoffigures \mainmatter \chapter{Introduction} \section{First} \chapter{Has Figures} \begin{figure} \rule{1cm}{1cm} \caption{caption text} \end{figure} \end{document}
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3 Answers 3

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The code below illustrates a possible solution; the basic idea is to let the figure environment do the job and decide if the chapter info will be written to the ToC; this is accomplished by using \AtBeginEnvironment (from the etoolbox or xpatch packages); whenever the figure environment is used in the document, it will examine a boolean flag; if the boolean is false, then it adds the chapter information to the LoF and sets the boolean to true; otherwise, it does not add any information.

The \@chapter command was also modified to reset the boolean and to globally store the information about the corresponding title and number; this information will then be used when writing to the LoF.

\documentclass{book} \usepackage{etoolbox} % or xpatch \makeatletter % initial definitions of the chapter info (name and number) \def\thischaptertitle{}\def\thischapternumber{} \newtoggle{noFigs} \apptocmd{\@chapter}% {\gdef\thischaptertitle{#1}\gdef\thischapternumber{\thechapter}% \global\toggletrue{noFigs}}{}{} % the figure environment does the job: the first time it is used after a \chapter command, % it writes the information of the chapter to the LoF \AtBeginDocument{% \AtBeginEnvironment{figure}{% \iftoggle{noFigs}{ \addtocontents{lof}{\protect\contentsline {chapter}% {\protect\numberline {\thischapternumber} {\thischaptertitle}}{}{} } \global\togglefalse{noFigs} }{} }% } \makeatother \begin{document} \tableofcontents \listoffigures \mainmatter \chapter{Introduction with no Figures} \chapter{Test Chapter with Figures} \begin{figure} \caption{caption text} \end{figure} \begin{figure} \caption{caption text} \end{figure} \chapter{Test Chapter with no Figures} \chapter{Another Test Chapter with Figures} \begin{figure} \caption{caption text} \end{figure} \begin{figure} \caption{caption text} \end{figure} \begin{figure} \caption{caption text} \end{figure} \begin{figure} \caption{caption text} \end{figure} \begin{figure} \caption{caption text} \end{figure} \end{document}

The list of figures obtained:

enter image description here

Remarks:

  1. The initial solution was simplified thanks to a comment by Markus Schmassmann.
  2. As lockstep mentions in his comment, further refinement would be needed in case one uses a continuous figure numbering scheme. Done by Markus Schmassmann.
  3. When using hyperref, the package must be loaded after the lines \apptocmd{\@chapter}....
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  • @GonzaloMedina You should add a hint that further refinement would be needed in case one uses a continuous figure numbering scheme. Anyway, great answer! Commented Apr 20, 2012 at 23:58
  • 1
    This be simplified by deleting \newcommand*\l@chapterinfo & \def\@nodottedtocline and replacing \addcontentsline by \addtocontents{lof}{\contentsline {chapter}{\numberline {\thischapternumber} {\thischaptertitle}}{} }. titletoc takes care of the formating. Commented Apr 21, 2012 at 3:46
  • @MarkusSchmassmann: you're right. I incorporated your suggestion into my answer. Thank you. Commented Apr 21, 2012 at 4:19
  • @GonzaloMedina: I forgot to \protect some commands, otherwise the lof won't be human readable. Commented Apr 21, 2012 at 15:05
  • @MarkusSchmassmann: yes. I've also added an extra pair of braces to the \addtocontents to make it compatible with hyperref. Commented Apr 21, 2012 at 15:21
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Another way to handle this that doesn't require individually modifying each environment you need (figure, table, algorithm, listing, ...) is to instead patch \addcontentsline. A slight modification of Gonzalo's solution:

\documentclass{book} \usepackage{etoolbox} \makeatletter \def\thischaptertitle{} \apptocmd{\@chapter}{\gdef\thischaptertitle{#1}}{}{} \newcommand{\DeclareDividedList}[1]% {\newcounter{#1@chapter}\setcounter{#1@chapter}{0}} \pretocmd{\addcontentsline}% {\ifltxcounter{#1@chapter}% {% \ifnumgreater{\thechapter}{\value{#1@chapter}}{% \setcounter{#1@chapter}{\thechapter}% \addtocontents{#1}{\protect\contentsline{chapter}% {\protect\numberline {\thechapter} {\thischaptertitle}}{}{} } }{}% }{}% }{}{} \makeatother \DeclareDividedList{lof} \DeclareDividedList{lot} \begin{document} \tableofcontents \listoffigures \listoftables \mainmatter \chapter{Introduction with no Figures} \chapter{Test Chapter with Figures but no Tables} \begin{figure} \caption{caption text} \end{figure} \begin{figure} \caption{caption text} \end{figure} \chapter{Test Chapter with Tables but no Figures} \begin{table} \caption{caption text} \end{table} \begin{table} \caption{caption text} \end{table} \chapter{Test Chapter with Figures and Tables} \begin{figure} \caption{caption text} \end{figure} \begin{table} \caption{caption text} \end{table} \begin{figure} \caption{caption text} \end{figure} \begin{table} \caption{caption text} \end{table} \begin{figure} \caption{caption text} \end{figure} \end{document}

This gives you chapter headings in both the list of figures and list of tables:

list of figures example list of tables example

If you don't use the \DeclareDividedList for one of them, say lot, then the counter \lot@chapter isn't created, and the \ifltxcounter switch will fail and the added code is not run when creating lines in the list of tables; the list will be typeset exactly as normal, without chapter headers.

Just as with the previous examples, this tends to break with unnumbered chapters.

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  • Would you see the problem what I have for appendices, in the following question: tex.stackexchange.com/questions/549556/… ...All this time after ! Commented Jun 15, 2020 at 16:14
  • You need to use \value{chapter} instead of \thechapter when using \ifnumgreater and \setcounter (and watch out for the chapter numbering resetting in the appendix). Commented Jun 15, 2020 at 18:28
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More of a comment than an answer actually (sorry, new account no cred' yet). With minor changes, the code proposed also works for adding chapters in a LoT by similarly modding the table environment.

\documentclass{book} \usepackage{etoolbox} % or xpatch \makeatletter % initial definitions of the chapter info (name and number) \def\thischaptertitle{}\def\thischapternumber{} \newtoggle{noTabs} \apptocmd{\@chapter}% {\gdef\thischaptertitle{#1}\gdef\thischapternumber{\thechapter}% \global\toggletrue{noTabs}}{}{} % the table environment does the job: the first time it is used after a \chapter command, % it writes the information of the chapter to the LoF \AtBeginDocument{% \AtBeginEnvironment{table}{% \iftoggle{noTabs}{ \addtocontents{lot}{\protect\contentsline {chapter}% {\protect\numberline {\thischapternumber} {\thischaptertitle}}{}{} } \global\togglefalse{noTabs} }{} }% } \makeatother \begin{document} \tableofcontents \listoftables \mainmatter \chapter{Introduction with no Tables} \chapter{Test Chapter with Tables} \begin{table} \caption{caption text} \end{table} \begin{table} \caption{caption text} \end{table} \chapter{Test Chapter with no Tables} \chapter{Another Test Chapter with Tables} \begin{table} \caption{caption text} \end{table} \begin{table} \caption{caption text} \end{table} \begin{table} \caption{caption text} \end{table} \begin{table} \caption{caption text} \end{table} \begin{table} \caption{caption text} \end{table} \end{document}

Unfortunately I can't post a snapshot either...

Anyway, great post, exactly what I was looking for!

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