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如何將 mdframed 環境放置在頁面頂部，而不減少頂部邊距？

tag-icon • tag-icon floats environments positioning mdframed figure-placement
如何將 mdframed 環境放置在頁面頂部，而不減少頂部邊距？

我有一個文檔，使用該包使用簡單的自訂演算法環境mdramed。

有時我希望將演算法放置在文字中的相應位置，而有時我希望將演算法放置在頁面頂部。在後一種情況下，我只是透過將演算法環境包裝在一個圖形中，然後將圖形位置設為 來實現[t!]。

但是，當 mdframed 框的頂部和框中的文字像這樣放置在頁面頂部時，它們之間的間距似乎會減少。

我的問題：如何將我的一些演算法環境放置在頁面頂部，而不改變演算法框與演算法框中文字之間的邊距間距。

這是一個突出問題的小例子：

\documentclass{article}

\usepackage{amsmath}
\usepackage{lipsum}

\usepackage[dvipsnames]{xcolor}
\definecolor[named]{lipicsYellow}{rgb}{0.99,0.78,0.07}

\usepackage{amsthm}
\usepackage[framemethod=TikZ]{mdframed}
\usepackage{float}

\newenvironment{ourbox}{\begin{mdframed}[hidealllines=false,innerleftmargin=10pt,backgroundcolor=white!10,innertopmargin=3pt,innerbottommargin=5pt,roundcorner=10pt]}{\end{mdframed}}

\newtheoremstyle{algstyle}% name of the style to be used
  {\topsep}% measure of space to leave above the theorem. E.g.: 3pt
  {\topsep}% measure of space to leave below the theorem. E.g.: 3pt
  {\normalfont}% name of font to use in the body of the theorem
  {0pt}% measure of space to indent
  {\bfseries}% name of head font
  {.}% punctuation between head and body
  {5pt plus 1pt minus 1pt}% space after theorem head; " " = normal interword space
  {\kern0.05em{\color{lipicsYellow}\rule{0.63em}{0.63em}}\hspace*{0.62em}\thmname{#1}\thmnumber{ #2}\textnormal{\thmnote{ (#3)}}}

\theoremstyle{algstyle}
\newtheorem{algo}{Algorithm}
\newenvironment{algorithm}{\begin{ourbox}\begin{algo}}{\end{algo}\end{ourbox}}

\theoremstyle{definition}

\begin{document}

The algorithm below has a decent amount of space from the top:

\begin{algorithm}
    Something interesting!
\end{algorithm}

\lipsum[1-5]

At the top of this page, we have an algorithm that is forced to be at the top of the page (and therefore has less space from the top).

\begin{figure}[t!]
\begin{algorithm}
    Something else interesting!
\end{algorithm}
\end{figure}

\end{document}

答案1

mdframed和樣式之間存在交互作用algstyle：定理下方和上方的空格未正確顯示（我不知道為什麼，也許\addvspace後面有一些）。我建議將它們設為零並使用mdframed（鍵innertopmargin和）管理間距innerbottommargin。

例子：

\newenvironment{ourbox}{%
  \begin{mdframed}[%
      hidealllines=false,
      innerleftmargin=10pt,
      backgroundcolor=white!10,
      innertopmargin=5pt,
      innerbottommargin=5pt,
      roundcorner=10pt]%
  }{\end{mdframed}}

\newtheoremstyle{algstyle}% name of the style to be used
  {0pt}% measure of space to leave above the theorem. E.g.: 3pt
  {0pt}% measure of space to leave below the theorem. E.g.: 3pt
  {\normalfont}% name of font to use in the body of the theorem
  {0pt}% measure of space to indent
  {\bfseries}% name of head font
  {.}% punctuation between head and body
  {5pt plus 1pt minus 1pt}% space after theorem head; " " = normal interword space
  {\kern0.05em{\color{lipicsYellow}\rule{0.63em}{0.63em}}\hspace*{0.62em}\thmname{#1}\thmnumber{ #2}\textnormal{\thmnote{ (#3)}}}

無論如何，\topsep都是一個橡膠空間（一個可以伸展的空間）。我想你會更喜歡固定長度。

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