大家好，
我已经在这个社区工作了一段时间了。谢谢你们！但现在我似乎遇到了一个其他地方没有提到的问题。更准确地说，没有一个解决方案适合我的情况。
subfigure我想要做的是自动将包中的环境内容subcaption置于整个文档的中心。我已经看到了以下答案埃格尔和米科，这对于正常环境来说工作得很好figure。但是，我想包含小于的数字width=1\linewidth，导致包含在内的数字subfigure左对齐。如果我\centering手动使用该命令，一切都正常。
我认为问题在于修补子图以某种方式失败了，这可以从我的辅助变量/命令\figureOK和中看出\subfigureOK。但这就是我陷入困境的地方。
按照 Mico 的方法figure（或者说所有浮点数），我还尝试使用\@subfloatboxresetAxel Sommerfeldt 建议的方法（在评论) 并由 提供subcaption。但这似乎根本没有效果。
我希望我的问题能得到解决。这是一个（希望）最小的工作示例。
\documentclass{scrartcl}
\RequirePackage[utf8]{inputenc}
\setlength{\parindent}{0mm}
\usepackage{graphicx}
\usepackage{subcaption}
\providecommand{\figureOK}{\relax}
\providecommand{\subfigureOK}{\relax}
%%%------------------------------------------------------ Anwser from egreg
% https://tex.stackexchange.com/a/144857
\usepackage{etoolbox}
\makeatletter
% Try to patch floats to use \centering
\apptocmd\@floatboxreset{\centering} % Try Patch
{\renewcommand{\figureOK}{Yes}} % Execute on success
{\renewcommand{\figureOK}{No}} % Execute on failure
% Try to patch subfigure to use \centering
\apptocmd\subcaption@minipage{\centering}
{\renewcommand{\subfigureOK}{Yes}}
{\renewcommand{\subfigureOK}{No}}
\makeatother
%%%------------------------------------------------------
%%%------------------------------------------------------ Answer from Mico
% https://tex.stackexchange.com/a/134889
%\usepackage{etoolbox}
%\makeatletter
% % Try to patch floats to use \centering
% \patchcmd{\@xfloat}%
% {\@floatboxreset}% % Replace this % Also tried this with \@subfloatboxreset
% {\@floatboxreset\centering} % With this
% {\renewcommand{\figureOK}{Yes}} % On success
% {\renewcommand{\figureOK}{No}} % On failure
%
% % Try to patch subfigure to use \centering
% \patchcmd{\subcaption@minipage}%
% {\setcaptionsubtype}%
% {\centering\setcaptionsubtype}
% {\renewcommand{\subfigureOK}{Yes}}
% {\renewcommand{\subfigureOK}{No}}
%\makeatother
%%%------------------------------------------------------
%%%------------------------------------------------------ For Test only
\usepackage{showframe}
\renewcommand*\ShowFrameColor{\color{red}}
\renewcommand*\ShowFrameLinethickness{0.4pt}
%%%------------------------------------------------------
\begin{document}
\section{Debug}
Figures automatically centered? \figureOK
Subfigures automatically centered? \subfigureOK
\section{Tests}
\begin{figure}[htbp]
\includegraphics[width=0.25\linewidth]{example-image-A}
\caption{Patching figures works well}
\end{figure}
\vfill
\begin{figure}[htbp]
\begin{subfigure}[b]{.5\linewidth}
\centering % <-- This is what I want to get rid of
\includegraphics[width=0.5\linewidth]{example-image-B}
\subcaption{A subfigure}
\end{subfigure}%
\begin{subfigure}[b]{.5\linewidth}
\centering % <-- This is what I want to get rid of
\includegraphics[width=0.5\linewidth]{example-image-C}
\subcaption{Another subfigure}
\end{subfigure}
\caption{A figure where subfigures are manually centered $\rightarrow$ works just fine}
\end{figure}
\vfill
\begin{figure}[htbp]
\begin{subfigure}[b]{.5\linewidth}
\includegraphics[width=0.5\linewidth]{example-image-B}
\subcaption{A subfigure}
\end{subfigure}%
\begin{subfigure}[b]{.5\linewidth}
\includegraphics[width=0.5\linewidth]{example-image-C}
\subcaption{Another subfigure}
\end{subfigure}
\caption{A figure where subfigures should be centered automatically $\rightarrow$ doesn't work}
\end{figure}
\end{document}
更新： 日志文件这里在 OneDrive 上。
答案1
\subcaption@minipage未定义，因此您无法修补它。使用与主浮点相同的钩子：
\usepackage{etoolbox}
\makeatletter
% Try to patch floats to use \centering
\apptocmd\@floatboxreset{\centering} % Try Patch
{\renewcommand{\figureOK}{Yes}} % Execute on success
{\renewcommand{\figureOK}{No}} % Execute on failure
\apptocmd\@subfloatboxreset{\centering}{}{\fail} %<----
\makeatother