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如何避免 /FloatBarrier 之后的分页符

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如何避免 /FloatBarrier 之后的分页符

我正在使用带有 section 选项的 placins 包。我注意到在某个部分之前似乎有一个分页符。下面是我的代码。如何将第二部分移到上一页？

\documentclass[12pt,a4paper]{article}
\usepackage{graphicx}
\usepackage{lipsum}
\usepackage[section]{placeins}
\begin{document}
\section{First}
\lipsum[1-3]
\begin{figure}[htb]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}
\begin{figure}[htb]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}
\begin{figure}[htb]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}

\section{Second}
\lipsum[4]
\begin{figure}[htb]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}

\end{document}

答案1

这？

\documentclass[12pt,a4paper]{article}
\usepackage{graphicx}
\usepackage{lipsum}
%\usepackage[section]{placeins}
\begin{document}
\section{First}
\lipsum[1-3]
\begin{figure}[htbp]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}
\begin{figure}[htbp]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}

\clearpage

\begin{figure}[ht]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}


\section{Second}
\lipsum[4]
\begin{figure}[htbp]
  \centering
  \includegraphics[width=0.8\textwidth]{example-image} 
  \caption{\label{fig:} }
\end{figure}

\end{document}

答案2

将图形的位置说明符从 更改为htb应该htpb可以解决问题。

以下是 placeins 的相关来源：

 \def\FloatBarrier{\par\begingroup \let\@elt\relax
 V\edef\@tempa{\write\m@ne{Package placeins Info: Float barrier, from
 V  input line \the\inputlineno, processed on page \thepage, lands on
 V  page \noexpand\thepage. }}\@tempa
  \edef\@tempa{\@fb@botlist\@deferlist\@dbldeferlist}%
  \ifx\@tempa\@empty V\PackageInfo{placeins}{No floats held,}%
  \else
     \ifx\@fltovf\relax % my indicator of recursion
        \if@firstcolumn V\PackageWarning{placeins}{Some floats are stuck,}%
          \clearpage 
        \else V\PackageInfo{placeins}{Eject a column and check again:}%
          \null\newpage\FloatBarrier 
        \fi
     \else V\PackageInfo{placeins}{Must dump some floats}%
        \newpage \let\@fltovf\relax V\PackageInfo{placeins}{Check again:}%
        \FloatBarrier % recurse once only
  \fi\fi \endgroup
  \@fb@topbarrier }

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