我正在尝试将多行图形标题居中，但未能成功。当我尝试用括号分隔标题中的行时{}，它可以工作，但标题行是反向的。我在下面附加了一个 MWE。
另外，如何确保即使我分开标题的行，它也会显示在目录中？
谢谢！
\documentclass[12pt, oneside]{article}
\usepackage{geometry}
\geometry{letterpaper}
\geometry{left=1.5in, right=1in, top=1in, bottom=1in}
\usepackage{amssymb}
\usepackage [english]{babel}
\usepackage [autostyle, english = american]{csquotes}
\MakeOuterQuote{"}
\usepackage{floatrow}
\usepackage{tabularx}
\newcolumntype{C}{>{\centering\arraybackslash}X}
\renewcommand\tabularxcolumn[1]{m{#1}}
\usepackage[title,titletoc,page,header]{appendix}
\renewcommand{\appendixpagename}{\centering Appendices}
\usepackage[nottoc]{tocbibind}
\usepackage{graphicx}
\graphicspath{ {Images/} }
\linespread{1.6}
\begin{document}
\listoffigures
\newpage
\indent X-ray generation is produced by inelastic collisions of the incident electrons with electrons in discrete orbitals of atoms in the sample. As excited electrons return to lower energy states, they yield x-rays that are of a fixed wavelength. These wavelengths are related to the difference in energy levels of electrons in different shells for a given element. This allows characteristic x-rays to be generated for each element in a material that is "excited" by the electron. One of the benefits of SEM analysis is that it is "non-destructive"; the x-rays generated by the electron interactions do not lead to volume loss of the sample, so it is possible to analyze materials repeatedly.
Figure 3 displays a typical SEM schematic.
\begin{figure}[ht] \centering
\includegraphics[scale=0.30]{SEMSchematic}
\caption{Typical SEM Schematic Displaying Electron Source, Focal Lenses, and}{Detectors}
\end{figure}
\end{document}
答案1
也许这就是你想要的——最后一行标题居中？另一方面，请注意，通常，当你增加行间距时，你不想增加脚注和标题的间距。set space 包会处理这些细节，所以我冒昧地加载了它并替换\linespread为\setstretch。
\documentclass[12pt, oneside]{article}
\usepackage{geometry}
\geometry{letterpaper}
\geometry{left=1.5in, right=1in, top=1in, bottom=1in}
\usepackage{amssymb}
\usepackage [english]{babel}
\usepackage [autostyle, english = american]{csquotes}
\MakeOuterQuote{"}
\usepackage{floatrow}
\usepackage{tabularx}
\newcolumntype{C}{>{\centering\arraybackslash}X}
\renewcommand\tabularxcolumn[1]{m{#1}}
\usepackage[title,titletoc,page,header]{appendix}
\renewcommand{\appendixpagename}{\centering Appendices}
\usepackage[nottoc]{tocbibind}
\usepackage[demo]{graphicx}
\graphicspath{ {Images/} }
\usepackage{caption}
\captionsetup{justification=centerlast}
\usepackage{setspace}
%\linespread{1.6}
\setstretch{1.6}
\begin{document}
\listoffigures
\newpage
\indent X-ray generation is produced by inelastic collisions of the incident electrons with electrons in discrete orbitals of atoms in the sample. As excited electrons return to lower energy states, they yield x-rays that are of a fixed wavelength. These wavelengths are related to the difference in energy levels of electrons in different shells for a given element. This allows characteristic x-rays to be generated for each element in a material that is "excited" by the electron. One of the benefits of SEM analysis is that it is "non-destructive"; the x-rays generated by the electron interactions do not lead to volume loss of the sample, so it is possible to analyze materials repeatedly.
Figure 3 displays a typical SEM schematic.
\begin{figure}[ht] \centering
\includegraphics[scale=0.30]{SEMSchematic}
\caption{Typical SEM Schematic Displaying Electron Source, Focal Lenses, and Detectors}
\end{figure}
\end{document}
