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如何将 mdframed 环境定位到页面顶部，而不减少 topmargins？

tag-icon • tag-icon floats environments positioning mdframed figure-placement
如何将 mdframed 环境定位到页面顶部，而不减少 topmargins？

我有一个文档，它使用一个简单的自定义算法环境，使用mdramed包。

有时我希望将算法放置在文本中的位置，有时我希望将算法放置在页面顶部。在后一种情况下，我只需将算法环境包装在图形中，然后将图形位置设置为[t!]。

然而，当将 mdframed 框顶部与框内文本放置在这样的页面顶部时，它们之间的间距似乎减小了。

我的问题：如何将我的一些算法环境定位在页面顶部，而定位不会改变算法框和算法框内文本之间的边距。

这是一个突出该问题的小例子：

\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 样式之间存在交互algstyle：定理下方和上方的空格未正确显示（我不知道为什么，可能有些问题）。我建议将它们设置为零，并使用（键和）\addvspace管理间距。mdframedinnertopmargininnerbottommargin

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)}}}

无论如何，\topsep都是一个橡胶空间（可拉伸的空间）。我想你会更喜欢固定长度。

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