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章节标题间距可以可变吗？

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章节标题间距可以可变吗？

我注意到，在我的文档类中，当章节标题很长时，标题可能会与页面上的第一行文本混在一起。我的默认间距是 50pt。如果我将其设置得更高，比如 150pt，那么带有长章节名称的页面看起来不错，但其余所有带有单行章节名称的页面下方都有太多空白，不符合我的口味。

我不想手动更改每个章节的间距...有没有办法将间距与用于章节标题的小页面的大小联系起来？

\documentclass{book}
\let\cleardoublepage\clearpage

\RequirePackage{tikz}
\RequirePackage[explicit]{titlesec}
\RequirePackage{DejaVuSansCondensed}
\RequirePackage[normalem]{ulem}
\RequirePackage[
  left=2.25in,
  right=0.75in,
  top=1.25in,
  bottom=1.25in,
  marginparwidth=1.75in,
  marginparsep=.25in,
  asymmetric]{geometry}

\renewcommand*\familydefault{\sfdefault} % Set default font

\makeatletter
\titleformat{\chapter}
  {\normalfont\sffamily\Huge\scshape}
  {}{0pt}
  {\thispagestyle{empty}    % Remove page number on new chapters
  %\setcounter{definition}{0}
  \begin{tikzpicture}[remember picture,overlay]
    \node[yshift=-3cm] at (current page.north west)
      {\begin{tikzpicture}[remember picture, overlay]
        \draw[fill=cyan] (0,-1) rectangle
          (25cm,3cm);
        \draw[fill=cyan] (0,-24) rectangle
          (25cm,-25cm);
        \ifttl@label% <---------------------- Added condition on \ifttl@label
          \node[anchor=west,xshift=.21\paperwidth,yshift=-.01\paperheight,rectangle]
              {\color{white}\LARGE \MakeUppercase{\@chapapp} \Huge\thechapter};
        \fi% <------------------------------- end condition on \ifttl@label
        \node[anchor=north west,xshift=.21\paperwidth,yshift=-.040\paperheight,rectangle]
              {\begin{minipage}{.9\textwidth}
                \color{cyan}\Huge\raggedright\MakeUppercase{#1}
              \end{minipage}};
       \end{tikzpicture}
      };
   \end{tikzpicture}
  }
\makeatother

\titlespacing*{\chapter}{0pt}{50pt}{0pt}{}

\titleformat{\section}{\color{cyan}\itshape\LARGE}{\llap{\thesection} #1}{1em}{}[\titleline{\color{cyan}\titlerule[1pt]}]
\titleformat{\subsection}{\color{cyan}\normalfont\large}{\; #1}{1em}{}

\begin{document}
  \chapter{A normal chapter}
    \section{A Section}
  \chapter{ON COMPUTABLE NUMBERS, WITH AN APPLICATION TO THE ENTSCHEIDUNGSPROBLEM}
    \section{Another Section}
\end{document}

答案1

正常情况下 latex 会留出空间，但固定高度的框阻止了这一点。您可以将章节文本从框中取出，让其参与正常的页面流，然后以下章节标题将正常定位，如下所示：

在此处输入图片描述

\documentclass{book}
\let\cleardoublepage\clearpage

\RequirePackage{tikz}
\RequirePackage[explicit]{titlesec}
\RequirePackage{DejaVuSansCondensed}
\RequirePackage[normalem]{ulem}
\RequirePackage[
  left=2.25in,
  right=0.75in,
  top=1.25in,
  bottom=1.25in,
  marginparwidth=1.75in,
  marginparsep=.25in,
  asymmetric]{geometry}

\renewcommand*\familydefault{\sfdefault} % Set default font

\makeatletter
\titleformat{\chapter}
  {\normalfont\sffamily\Huge\scshape}
  {}{0pt}
  {\thispagestyle{empty}    % Remove page number on new chapters
  %\setcounter{definition}{0}
  \begin{tikzpicture}[remember picture,overlay]
    \node[yshift=-3cm] at (current page.north west)
      {\begin{tikzpicture}[remember picture, overlay]
        \draw[fill=cyan] (0,-1) rectangle
          (25cm,3cm);
        \draw[fill=cyan] (0,-24) rectangle
          (25cm,-25cm);
        \ifttl@label% <---------------------- Added condition on \ifttl@label
          \node[anchor=west,xshift=.21\paperwidth,yshift=-.01\paperheight,rectangle]
              {\color{white}\LARGE \MakeUppercase{\@chapapp} \Huge\thechapter};
        \fi% <------------------------------- end condition on \ifttl@label
       \end{tikzpicture}
      };
   \end{tikzpicture}\endgraf
  \vskip-.7cm
  \color{cyan}\Huge\raggedright\leftskip-1cm
   \noindent\MakeUppercase{#1}\endgraf
  }
\makeatother

\titlespacing*{\chapter}{0pt}{10pt}{0pt}{}

\titleformat{\section}{\color{cyan}\itshape\LARGE}{\llap{\thesection} #1}{1em}{}[\titleline{\color{cyan}\titlerule[1pt]}]
\titleformat{\subsection}{\color{cyan}\normalfont\large}{\; #1}{1em}{}

\begin{document}
  \chapter{A normal chapter}
    \section{A Section}
  \chapter{ON COMPUTABLE NUMBERS, WITH AN APPLICATION TO THE ENTSCHEIDUNGSPROBLEM}
    \section{Another Section}
\end{document}

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