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LaTeX Beamer - \beamer@centeringfalse 在 \setbeamertemplate 中不执行任何操作

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LaTeX Beamer - \beamer@centeringfalse 在 \setbeamertemplate 中不执行任何操作

我正在尝试制作一个beamer从上往下填充的自定义标题页。我可以使用\beamer@centeringfalse来更改它，但这是整个文档的全局设置。当我将命令放在 内时\setbeamertemplate{titlepage}，标题页从中心填充。

有没有办法来解决这个问题？

代码：

\setbeamertemplate{title page}%
{%
    \begin{tabular}{l|c|r}%
        \begin{beamercolorbox}[wd=0.3\textwidth]{normal text}%
            \centering%
            \usebeamerfont{author}\insertauthor%
        \end{beamercolorbox}&%
        \begin{beamercolorbox}[wd=0.3\textwidth]{normal text}%
            \centering%
            \usebeamerfont{institute}\insertinstitute%
        \end{beamercolorbox}&%
        \begin{beamercolorbox}[wd=0.3\textwidth]{normal text}%
            \centering%
            \usebeamerfont{date}\insertdate%
        \end{beamercolorbox}%
    \end{tabular}
    \begin{beamercolorbox}[wd=\textwidth]{normal text}%
        \centering%
        \usebeamerfont{title}\inserttitle\par%
    \end{beamercolorbox}%
    \ifx\insertsubtitle\@empty\else%
    \begin{beamercolorbox}[wd=\textwidth]{accent text}%
        \centering%
        \begin{tikzpicture}%
        \node[draw, ellipse, minimum width=1cm, minimum height=1cm, line width=2pt, inner sep=2pt] at (2,0) {%
                                                                                        \begin{minipage}{0.25\textwidth}%
                                                                                            \centering%
                                                                                            \usebeamerfont{subtitle}\color{WhiteSmoke}\insertsubtitle\par%
                                                                                        \end{minipage}};%
        \end{tikzpicture}%
    \end{beamercolorbox}%
    \fi%
}

答案1

模板title page在框架内执行。此时设置框架选项已经太迟了。

为了能够控制标题页的对齐方式，您可以确保标题页填满整个框架[c]，[t]否则[b]框架就无关紧要了。

\documentclass{beamer}

\usepackage{tikz}
\usetikzlibrary{shapes}

\title{text}
\author{names}
\subtitle{subtitle}

\makeatletter
\setbeamertemplate{title page}%
{%
  \begin{minipage}[t][\textheight]{\textwidth}
    \begin{tabular}{@{}l|c|r@{}}%
        \begin{beamercolorbox}[wd=0.3\textwidth]{normal text}%
            \centering%
            \usebeamerfont{author}\insertauthor%
        \end{beamercolorbox}&%
        \begin{beamercolorbox}[wd=0.3\textwidth]{normal text}%
            \centering%
            \usebeamerfont{institute}\insertinstitute%
        \end{beamercolorbox}&%
        \begin{beamercolorbox}[wd=0.3\textwidth]{normal text}%
            \centering%
            \usebeamerfont{date}\insertdate%
        \end{beamercolorbox}%
    \end{tabular}%
    
    \begin{beamercolorbox}[wd=\textwidth]{normal text}%
        \centering%
        \usebeamerfont{title}\inserttitle\par%
    \end{beamercolorbox}%
    
    \ifx\insertsubtitle\@empty\else%
    \begin{beamercolorbox}[wd=\textwidth]{accent text}%
        \centering%
        \begin{tikzpicture}%
        \node[draw, ellipse, minimum width=1cm, minimum height=1cm, line width=2pt, inner sep=2pt] at (2,0) {%
                                                                                        \begin{minipage}{0.25\textwidth}%
                                                                                            \centering%
                                                                                            \usebeamerfont{subtitle}\color{red}\insertsubtitle\par%
                                                                                        \end{minipage}};%
        \end{tikzpicture}%
    \end{beamercolorbox}%
    
    \fi%
  \end{minipage}%
}

\makeatother

\begin{document}

\begin{frame}[c]
\titlepage
\end{frame}

\begin{frame}[t]
\titlepage
\end{frame}

\begin{frame}[b]
\titlepage
\end{frame}
    
\end{document}

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