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如何在这个图中创建一个额外的框？

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如何在这个图中创建一个额外的框？

我现在已经花了几个小时来解决我的问题 - 但没有任何进展。我想创建下图：

在此处输入图片描述

我的问题是，我不知道如何在中间创建一个额外的框。我的序言如下所示（感谢@Ignasi 为我指明了正确的方向）：

\documentclass[margin=14pt,12pt]{standalone}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel} 
\usepackage[lf]{MinionPro}
\usepackage{tikz}
\usetikzlibrary{positioning, fit}
\begin{document}

\begin{tikzpicture}[
mytext/.style={
  draw,
  text width=#1,
  align=center,
  minimum height=1.5cm
  },
ar/.style={
  ->,
  >=latex
  }  
]
\node[mytext=3cm,minimum height=8cm] (left)
  {1 text text text};
\node[mytext=4cm,right=1.5cm of left] 
  (middle2)
  {2 text text text};
\node[mytext=4cm,anchor=north west] at (left.north-|middle2.west) 
  (middle1)
  {3 text text text};
\node[mytext=4cm,anchor=south west] at (left.south-|middle2.west) 
  (middle3)
  {4 text text text};
\node[mytext=3cm,minimum height=8cm,right=1.5cm of middle2] (right)
  {8 text text text};


\node[mytext=3cm, dashed, above=1cm of left] (d-left) {1 text text};
\node[mytext=4cm, dashed, above=1cm of middle1] (d-middle) {2 text text};
\node[mytext=3cm, dashed, above=1cm of right] (d-right) {3 text text};

\foreach \i/\j in {1/d-left, 2/d-middle, 3/d-right}
    \draw ([yshift=1cm]\j.north west)--node [above] {\i\ text} ([yshift=1cm]\j.north east);

\foreach \i in {middle1, middle2, middle3}{
    \draw[ar] (left.east)--(\i.west);
    \draw[ar] (\i)--(right.west|-\i);
    }

\node[fit={(left) (right) ([yshift=2cm]d-left.north west)}, draw, inner sep=8,,] {};
\end{tikzpicture}

\end{document}

我将非常感激任何帮助！

答案1

只需添加一些yshift适当的值（1.1厘米）和一个额外的节点middle21。

\documentclass[margin=14pt,12pt]{standalone}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
%\usepackage[lf]{MinionPro}
\usepackage{tikz}
\usetikzlibrary{positioning, fit}
\begin{document}

\begin{tikzpicture}[
mytext/.style={
  draw,
  text width=#1,
  align=center,
  minimum height=1.5cm
  },
ar/.style={
  ->,
  >=latex
  }
]
\node[mytext=3cm,minimum height=8cm] (left)
  {1 text text text};
\node[mytext=4cm,right=1.5cm of left,yshift=1.1cm]
  (middle2)
  {2 text text text};
\node[mytext=4cm,right=1.5cm of left,yshift=-1.1cm]
  (middle21)
  {2 text text text};
\node[mytext=4cm,anchor=north west] at (left.north-|middle2.west)
  (middle1)
  {3 text text text};
\node[mytext=4cm,anchor=south west] at (left.south-|middle2.west)
  (middle3)
  {4 text text text};
\node[mytext=3cm,minimum height=8cm,right=1.5cm of middle2,yshift=-1.1cm] (right)
  {8 text text text};


\node[mytext=3cm, dashed, above=1cm of left] (d-left) {1 text text};
\node[mytext=4cm, dashed, above=1cm of middle1] (d-middle) {2 text text};
\node[mytext=3cm, dashed, above=1cm of right] (d-right) {3 text text};

\foreach \i/\j in {1/d-left, 2/d-middle, 3/d-right}
    \draw ([yshift=1cm]\j.north west)--node [above] {\i\ text} ([yshift=1cm]\j.north east);

\foreach \i in {middle1, middle2,middle21, middle3}{
    \draw[ar] (left.east)--(\i.west);
    \draw[ar] (\i)--(right.west|-\i);
    }

\node[fit={(left) (right) ([yshift=2cm]d-left.north west)}, draw, inner sep=8,,] {};
\end{tikzpicture}

\end{document}

在此处输入图片描述

答案2

这是一个使用calc库将中间框放置在中间的选项；我试图修改原始代码，但可能性较小：

在此处输入图片描述

代码：

\documentclass[margin=14pt,12pt]{standalone}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel} 
\usepackage{tikz}
\usetikzlibrary{positioning, fit,calc}
\begin{document}

\begin{tikzpicture}[
mytext/.style={
  draw,
  text width=#1,
  align=center,
  minimum height=1.5cm
  },
ar/.style={
  ->,
  >=latex
  }  
]
\node[mytext=3cm,minimum height=8cm] (left)
  {1 text text text};
\node[mytext=4cm,anchor=north west]
  at ([xshift=1.5cm]$ (left.north east)!0.27!(left.south east) $ ) 
  (middle2)
  {2 text text text};
\node[mytext=4cm,anchor=south west]
  at ([xshift=1.5cm]$ (left.north east)!0.73!(left.south east) $ ) 
  (middle3)
  {3 text text text};
\node[mytext=4cm,anchor=north west] at (left.north-|middle2.west) 
  (middle1)
  {1 text text text};
\node[mytext=4cm,anchor=south west] at (left.south-|middle2.west) 
  (middle4)
  {4 text text text};
\node[mytext=3cm,minimum height=8cm,right=1.5cm of middle1.north east,anchor=north west] (right)
  {8 text text text};


\node[mytext=3cm, dashed, above=1cm of left] (d-left) {1 text text};
\node[mytext=4cm, dashed, above=1cm of middle1] (d-middle) {2 text text};
\node[mytext=3cm, dashed, above=1cm of right] (d-right) {3 text text};

\foreach \i/\j in {1/d-left, 2/d-middle, 3/d-right}
    \draw ([yshift=1cm]\j.north west)--node [above] {\i\ text} ([yshift=1cm]\j.north east);

\foreach \i in {middle1, middle2, middle3, middle4}{
    \draw[ar] (left.east)--(\i.west);
    \draw[ar] (\i)--(right.west|-\i);
    }

\node[fit={(left) (right) ([yshift=2cm]d-left.north west)}, draw, inner sep=8,,] {};
\end{tikzpicture}

\end{document}

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