Centrar subtítulos debajo de las figuras

Question

¿Hay alguna forma de hacer esto? Todos los míos quedan alineados a la izquierda; sin embargo, los quiero centrados. ¿Cómo se hace?

También relacionado: ¿cómo puedo animar todos mis subtítulos?

\documentclass[a4paper,12pt,fleqn,titlepage]{report}
\usepackage[margin=2.0cm]{geometry}                % See geometry.pdf to learn the layout options. There are lots.
\geometry{letterpaper}                   % ... or a4paper or a5paper or ... 
%\geometry{landscape}                % Activate for for rotated page geometry
\usepackage[parfill]{parskip}    % Activate to begin paragraphs with an empty line rather than an indent
\usepackage{graphicx}
\usepackage{ulem}
\usepackage{mathtools}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{epstopdf}
\usepackage{longtable}
\usepackage{color}
\usepackage{subfigure}
\usepackage{wrapfig}
\usepackage{pdfpages}
\usepackage{makecell}
\usepackage{caption}
\usepackage{titlesec}
\newcommand{\sectionbreak}{\clearpage}
\titleformat{\chapter}[display]
  {\normalfont\huge\bfseries}{\chaptertitlename\ \thechapter}{20pt}{\Huge}
\titlespacing*{\chapter}{0pt}{-30pt}{12pt}
\DeclareGraphicsRule{.tif}{png}{.png}{`convert #1 `dirname #1`/`basename #1 .tif`.png}
\renewcommand{\thefootnote}{\arabic{footnote}}
\usepackage[perpage,bottom]{footmisc}

\begin{document}

\begin{table}[h!]
\centering
\captionsetup{width=13cm}
\caption{Load of stuff above the table which is wider than the table, can use width to limit that as above but want it centralised, also might be numbers in here which means when I want to embolden the entire caption from the preamle so that it does it for all figures in my document that the numbers like this $n=1,2,3,4,5,6$ and $7$ will embolden too. If I put this in at the moment it looks like my actual text and so there is lttle way to discern between the two.}
\vspace{0.3cm}
\begin{tabular}{| l | l | l |}
\hline
Thing1 & Thing2 & Thing3 \\ \hline
blah1 & blah2 & blah3 \\ \hline
\end{tabular}
\label{table:stuff}
\end{table}

\end{document}

Disculpe el preámbulo porque realmente no sé qué se relaciona con qué, solo sé que se han recopilado a lo largo del tiempo para poder escribir mi documento completo, de modo que todos se utilicen en algún momento. Si quieres, puedo editarlos...

Así que quiero una forma de realzar, centralizar y cambiar el tamaño de fuente de todos mis subtítulos globalmente, y por centralizar me refiero a alinearlos al centro, para que no queden alineados a la izquierda.

Answer 1

No es necesario un paquete adicional; Ya que estás cargando caption, puedes usar sus características:

\documentclass[a4paper,12pt,fleqn,titlepage]{report}
\usepackage{caption}

\captionsetup{width=.75\textwidth,font={bf,scriptsize},skip=0.3cm,within=none}


\begin{document}

\chapter{Test}
\begin{table}
\centering
\caption{Load of stuff above the table which is wider than the table, can use width to limit that as above but want it centralised, also might be numbers in here which means when I want to embolden the entire caption from the preamle so that it does it for all figures in my document that the numbers like this $n=1,2,3,4,5,6$ and $7$ will embolden too. If I put this in at the moment it looks like my actual text and so there is lttle way to discern between the two.}
\begin{tabular}{| l | l | l |}
\hline
Thing1 & Thing2 & Thing3 \\ \hline
blah1 & blah2 & blah3 \\ \hline
\end{tabular}
\label{table:stuff}
\end{table}

\end{document}

Answer 2

¿Esto se acerca más a lo que estás buscando? La primera mesa es la que tenías. El segundo está usando boxhandler. El ancho del título, el tamaño de fuente del título y la negrita del texto normal en el título se han cambiado en el preámbulo y se aplicarán a todas las tablas y figuras. Las matemáticas en negrita en el título no se pueden cambiar globalmente en los títulos de las tablas sin cambiarlas también en el resto del documento. Por lo tanto, el \mathbftítulo es parte del título de cada figura usando matemáticas. Los parámetros que utilicé son caption width= .5\textwidthy el título está en negrita.

\documentclass[a4paper,12pt,fleqn,titlepage]{report}
\usepackage[margin=2.0cm]{geometry}                % See geometry.pdf to learn the layout options. There are lots.
\geometry{letterpaper}                   % ... or a4paper or a5paper or ... 
%\geometry{landscape}                % Activate for for rotated page geometry
\usepackage[parfill]{parskip}    % Activate to begin paragraphs with an empty line rather than an indent
\usepackage{graphicx}
\usepackage{ulem}
\usepackage{mathtools}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{epstopdf}
\usepackage{longtable}
\usepackage{color}
\usepackage{subfigure}
\usepackage{wrapfig}
\usepackage{pdfpages}
\usepackage{makecell}
\usepackage{caption}
\usepackage{titlesec}
%
\usepackage{boxhandler}
\captionStyle{n}{c}
\constrainCaptionWidth{.5\textwidth}
\def\CaptionFontSize{\scriptsize\bfseries}
%
\newcommand{\sectionbreak}{\clearpage}
\titleformat{\chapter}[display]
  {\normalfont\huge\bfseries}{\chaptertitlename\ \thechapter}{20pt}{\Huge}
\titlespacing*{\chapter}{0pt}{-30pt}{12pt}
\DeclareGraphicsRule{.tif}{png}{.png}{`convert #1 `dirname #1`/`basename #1 .tif`.png}
\renewcommand{\thefootnote}{\arabic{footnote}}
\usepackage[perpage,bottom]{footmisc}

\begin{document}

\begin{table}[h!]
\centering
\captionsetup{width=13cm}
\caption{Load of stuff above the table which is wider than the table, can use width to limit that as above but want it centralised, also might be numbers in here which means when I want to embolden the entire caption from the preamle so that it does it for all figures in my document that the numbers like this $n=1,2,3,4,5,6$ and $7$ will embolden too. If I put this in at the moment it looks like my actual text and so there is lttle way to discern between the two.}
\vspace{0.3cm}
\begin{tabular}{| l | l | l |}
\hline
Thing1 & Thing2 & Thing3 \\ \hline
blah1 & blah2 & blah3 \\ \hline
\end{tabular}
\label{table:stuff}
\end{table}

\bxtable[ht]
{Load of stuff above the table which is wider than the table,
can use width to limit that as above but want it centralised, also might
be numbers in here which means when I want to embolden the entire
caption from the preamle so that it does it for all figures in my
document that the numbers like this $\mathbf{n=1,2,3,4,5,6}$ and
$\mathbf{7}$ will
embolden too. If I put this in at the moment it looks like my actual
text and so there is lttle way to discern between the two}
{
\begin{tabular}{| l | l | l |}
\hline
Thing1 & Thing2 & Thing3 \\ \hline
blah1 & blah2 & blah3 \\ \hline
\end{tabular}
}

\end{document}

Answer 3

Usar\makebox[\textwidth]{}

\begin{table}[h!]
\centering
\makebox[\textwidth]{
\captionsetup{width=13cm}
\caption{Load of stuff above the table which is wider than the table, can use width to limit that as above but want it centralised, also might be numbers in here which means when I want to embolden the entire caption from the preamle so that it does it for all figures in my document that the numbers like this $n=1,2,3,4,5,6$ and $7$ will embolden too. If I put this in at the moment it looks like my actual text and so there is lttle way to discern between the two.}
\vspace{0.3cm}
\begin{tabular}{| l | l | l |}
\hline
Thing1 & Thing2 & Thing3 \\ \hline
blah1 & blah2 & blah3 \\ \hline
\end{tabular}}
\label{table:stuff}
\end{table}