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允许算法和图片重叠

tag-icon • tag-icon minipage algorithms
允许算法和图片重叠

我把一个算法和一张图片并排放在一起。到目前为止，我意识到，通过将它们放在 minipage 环境中（算法和图片各占 0.5\textwidth）

这是一个最小的工作示例：

\documentclass{article}  

\usepackage{algorithm}
\usepackage{algpseudocode}

\usepackage{graphicx}
\usepackage{color}


\begin{document}

\begin{minipage}{.5\textwidth}
\begin{algorithm}[H]
\caption{\\ Stress calculation}
\begin{algorithmic}[1] 
\State The first line of an longer algorithm
\end{algorithmic}
\end{algorithm}
\end{minipage}
\begin{minipage}{.5\textwidth}
\def\svgwidth{300pt}
\input{./example.pdf_tex}
\end{minipage}

\end{document}

文件example.pdf_tex是Inkscape生成的图片：

%%
\begingroup%
  \makeatletter%
  \providecommand\color[2][]{%
    \errmessage{(Inkscape) Color is used for the text in Inkscape, but the package 'color.sty' is not loaded}%
    \renewcommand\color[2][]{}%
  }%
  \providecommand\transparent[1]{%
    \errmessage{(Inkscape) Transparency is used (non-zero) for the text in Inkscape, but the package 'transparent.sty' is not loaded}%
    \renewcommand\transparent[1]{}%
  }%
  \providecommand\rotatebox[2]{#2}%
  \newcommand*\fsize{\dimexpr\f@size pt\relax}%
  \newcommand*\lineheight[1]{\fontsize{\fsize}{#1\fsize}\selectfont}%
  \ifx\svgwidth\undefined%
    \setlength{\unitlength}{156.0915483bp}%
    \ifx\svgscale\undefined%
      \relax%
    \else%
      \setlength{\unitlength}{\unitlength * \real{\svgscale}}%
    \fi%
  \else%
    \setlength{\unitlength}{\svgwidth}%
  \fi%
  \global\let\svgwidth\undefined%
  \global\let\svgscale\undefined%
  \makeatother%
  \begin{picture}(1,0.81532061)%
    \lineheight{1}%
    \setlength\tabcolsep{0pt}%
    \put(0,0){\includegraphics[width=\unitlength,page=1]{example.pdf}}%
    \put(1,0.31527883){\color[rgb]{0,0,0}\makebox(0,0)[lt]{\lineheight{1.25}\smash{\begin{tabular}[t]{l} \end{tabular}}}}%
  \end{picture}%
\endgroup%

我想在算法和图片之间画一条线，但是 minipage 环境不允许离开图片的 0.5\textwidth 部分（如果我在 inkscape 中画这条线）。

我怎样才能做到这一点？

答案1

算法环境是浮点数，你不能将浮点数放在小页面中。能使用 paracol。

我在算法和图片环境中添加了 tikzmarks，然后用箭头将它们连接起来。这需要运行两次。

\documentclass{article}  

\usepackage{algorithm}
\usepackage{algpseudocode}

\usepackage{graphicx}
\usepackage{color}

\usepackage{paracol}
\usepackage{tikz}
\usetikzlibrary{tikzmark}

\begin{document}

\begin{paracol}{2}
\begin{algorithm}[t]
\caption{\\ Stress calculation}
\begin{algorithmic}[1] 
\State The first line of an longer algorithm \tikzmark{A}
\State The second line of an longer algorithm \tikzmark{B}
\end{algorithmic}
\end{algorithm}

\switchcolumn

\def\svgwidth{\columnwidth}
\begingroup%
  \makeatletter%
  \providecommand\color[2][]{%
    \errmessage{(Inkscape) Color is used for the text in Inkscape, but the package 'color.sty' is not loaded}%
    \renewcommand\color[2][]{}%
  }%
  \providecommand\transparent[1]{%
    \errmessage{(Inkscape) Transparency is used (non-zero) for the text in Inkscape, but the package 'transparent.sty' is not loaded}%
    \renewcommand\transparent[1]{}%
  }%
  \providecommand\rotatebox[2]{#2}%
  \newcommand*\fsize{\dimexpr\f@size pt\relax}%
  \newcommand*\lineheight[1]{\fontsize{\fsize}{#1\fsize}\selectfont}%
  \ifx\svgwidth\undefined%
    \setlength{\unitlength}{156.0915483bp}%
    \ifx\svgscale\undefined%
      \relax%
    \else%
      \setlength{\unitlength}{\unitlength * \real{\svgscale}}%
    \fi%
  \else%
    \setlength{\unitlength}{\svgwidth}%
  \fi%
  \global\let\svgwidth\undefined%
  \global\let\svgscale\undefined%
  \makeatother%
  \begin{picture}(1,0.81532061)%
    \lineheight{1}%
    \setlength\tabcolsep{0pt}%
    \put(0,0.81532061) {\tikzmark{C}}% top of picture environment
    \put(0,0) {\tikzmark{D}}% bottom of picture environment
    \put(0,0){\includegraphics[width=\unitlength,page=1]{example-image}}%
    \put(1,0.31527883){\color[rgb]{0,0,0}\makebox(0,0)[lt]{\lineheight{1.25}\smash{\begin{tabular}[t]{l} \end{tabular}}}}%
  \end{picture}%
\endgroup%
\end{paracol}

\begin{tikzpicture}[overlay, remember picture]
\draw[red, <-] (pic cs:A) -- (pic cs:C);
\draw[blue, <-] (pic cs:B) -- (pic cs:D);
\end{tikzpicture}

\end{document}

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