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向下移动 Beamer 标题

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向下移动 Beamer 标题

我做了一次演示，发现在全屏模式下，投影仪会切掉幻灯片四边的一点内容（似乎是过度扫描）。我尝试使用投影仪和笔记本电脑来纠正这个问题，但没有成功。作为一种技巧，我只想增加页眉和页脚与幻灯片边缘之间的距离。我使用的样式文件包含

\ProvidesPackageRCS $Header: /cvsroot/latex-beamer/latex-beamer/themes/theme/compatibility/beamerthemeshadow.sty,v 1.12 2007/01/28 20:48:30 tantau Exp $

\mode<presentation>

\definecolor{BYUblue}{RGB}{0,31,69}
\definecolor{BYUgold}{RGB}{195,163,106}
\usecolortheme[RGB={0,31,69}]{structure} % BYU Blue

\usetheme{Frankfurt}
\setbeamercolor*{section in head/foot}{bg=BYUblue,fg=gray!25}
\setbeamercolor*{frametitle}{bg=BYUblue!50,fg=white!25}
\setbeamercovered{transparent}
\mode<all>

\addtobeamertemplate{frametitle}{}{%
\begin{textblock*}{100mm}(0.95\textwidth,-0.7cm)
\includegraphics[width=1.2cm]{figures/magiccLabLogo}
\end{textblock*}}

% define the footline
\defbeamertemplate*{footline}{infolines theme}
{
  \leavevmode%
  \hbox{%
  \begin{beamercolorbox}[wd=.25\paperwidth,ht=2.25ex,dp=2ex,left]{author in head/foot}%
    \hspace*{2mm}
%        \usebeamerfont{author in head/foot}\insertshortauthor~~(\insertshortinstitute)
        \usebeamerfont{author in head/foot}\insertshortauthor
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=2ex,center]{title in head/foot}%
        \usebeamerfont{title in head/foot}\insertshorttitle
        \hspace*{2mm}
  \end{beamercolorbox}}%
  \begin{beamercolorbox}[wd=.25\paperwidth,ht=2.25ex,dp=2ex,right]{author in head/foot}%
        \usebeamerfont{author in head/foot}\insertpagenumber/\insertpresentationendpage
        \hspace*{2mm}
  \end{beamercolorbox}%
  \vskip0pt%
}

\setbeamertemplate{navigation symbols}{} % no nav symbols

我通过将上述 footline 定义中的 beamercolorboxes 的 dp 设置增加到 2ex 来将页脚向上移动。有没有类似的简单方法可以对页眉执行此操作？

这就是我所拥有的

这就是我所拥有的

这就是我想要的 - 只需在章节标题上方留出一点额外的空间 这就是我要的

答案1

所以我大概搞明白了。法兰克福主题使用 smoothbars 外部主题。我导航到 MiKTeX 2.9\tex\latex\beamer\base\themes\outer 文件夹并备份了 beamerouterthemesmoothbars.sty 文件。然后我对其进行了编辑，现在 \AtBeginDocument 命令为

\AtBeginDocument{
  {
    \usebeamerfont*{headline}
    \colorlet{global.bg}{bg}
    \usebeamercolor{subsection in head/foot}
    \usebeamercolor{section in head/foot}
    \usebeamercolor{frametitle}

    \ifbeamer@sb@subsection
      \pgfdeclareverticalshading{beamer@barshade}{\the\paperwidth}{%
         color(0ex)=(global.bg);%
         color(1ex)=(subsection in head/foot.bg);%
         color(3.25ex)=(subsection in head/foot.bg);%
         color(4.25ex)=(section in head/foot.bg);%
         color(9.75ex)=(section in head/foot.bg)%
       }
       \pgfdeclareverticalshading{beamer@aboveframetitle}{\the\paperwidth}{%
         color(0ex)=(frametitle.bg);%
         color(1ex)=(frametitle.bg);%
         color(2ex)=(subsection in head/foot.bg)
       }
    \else
      \pgfdeclareverticalshading{beamer@barshade}{\the\paperwidth}{%
         color(0ex)=(global.bg);%
         color(1ex)=(section in head/foot.bg);%
         color(8ex)=(section in head/foot.bg)% <- this was the only line I changed. It was 7ex.
       }
     \pgfdeclareverticalshading{beamer@aboveframetitle}{\the\paperwidth}{%
         color(0ex)=(frametitle.bg);%
         color(1ex)=(frametitle.bg);%
         color(2ex)=(section in head/foot.bg)
       }
    \fi  

    \pgfdeclareverticalshading{beamer@belowframetitle}{\the\paperwidth}{%
      color(0ex)=(global.bg);%
      color(1ex)=(frametitle.bg)
    }
  }
}

我使用了压缩选项，因此不显示子节。我试图理解所有这些代码的作用，但对它们的作用完全感到困惑。我相信有 LaTeX 专家可以更好地解释它。

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