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Tikz：文本与对象重叠

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Tikz：文本与对象重叠

我需要绘制一些重叠的矩形组，例如：

矩形

它们用数字标记，矩形 1 与矩形 2 重叠，等等。

有没有办法自动改变数字的位置，让它们全部可见？或者将所有数字放在所有矩形上？

代码：

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{shapes,backgrounds}

\usepackage{etoolbox}% provides \preto
\makeatletter
\newcommand*{\collect@draws}{}
\newcommand*{\reversedraws}{%
  \renewcommand*{\collect@draws}{}% initialize
  \look@for@draw
}
\newcommand*{\look@for@draw}{%
  \@ifnextchar\draw{%
    \catch@draw
  }{%
    \collect@draws % output the result
  }%
}
\def\catch@draw\draw#1;{%
  \preto\collect@draws{\draw#1;}%
  \look@for@draw
}
\makeatother

\begin{document}

\begin{tikzpicture}[scale = 4]
\reversedraws
\draw [fill=yellow] (0.445041,0.801937) rectangle (0,1) node[midway] {$1$};
\draw [fill=yellow] (0.692021,0.356896) rectangle (1,1) node[midway] {$2$};
\draw [fill=yellow] (0.692021,0.356895) rectangle (0,0) node[midway] {$3$};
\draw [fill=yellow] (0.137063,0.158832) rectangle (0,1) node[midway] {$4$};
\draw [fill=yellow] (0.384043,0.713791) rectangle (1,0) node[midway] {$5$};
\draw [fill=yellow] (0.829084,0.515727) rectangle (0,1) node[midway] {$6$};
\draw [fill=yellow] (0.521105,0.872622) rectangle (0,0) node[midway] {$7$};
\end{tikzpicture}

\begin{tikzpicture}[scale = 4]
\reversedraws
\draw [fill=yellow] (0.145041,0.801937) rectangle (0,1) node[midway] {$1$};
\draw [fill=yellow] (0.692021,0.356896) rectangle (0.7,1) node[midway] {$2$};
\draw [fill=yellow] (0.392021,0.356895) rectangle (0,0) node[midway] {$3$};
\draw [fill=yellow] (0.384043,0.713791) rectangle (0.7,0) node[midway] {$4$};
\draw [fill=yellow] (0.529084,0.515727) rectangle (0,1) node[midway] {$5$};
\draw [fill=yellow] (0.521105,0.872623) rectangle (0.7,1) node[midway] {$6$};
\draw [fill=yellow] (0.221105,0.872622) rectangle (0,0) node[midway] {$7$};
\draw [fill=yellow] (0.213127,0.229518) rectangle (0.7,1) node[midway] {$8$};
\end{tikzpicture}

\end{document}

答案1

自动更改节点的位置可能很难，但如果您事先知道所有情况，则可以做到。我不确定这是否值得。

但是，您可以将节点放在前台，而且它们需要有背景（以覆盖后面的线条），我认为这是根据当前信息我能提出的最佳建议。

您可以添加[mid]到您想要的前台节点，但如果您希望将其应用于所有节点，只需mid在其中every node一个节点中包含样式即可。尽管我建议不要这样做，因为您可能会影响其他最好不要管的节点（例如本例中的节点 6）。

选择

every node/.style={midway},
every path/.style={fill=yellow},

分别适用于所有节点和所有路径。因此您无需在代码中指定这些。通常，最好为重复多次的事情设置一般规则。

这是来自的修改解决方案Loop Space 的答案。

输出

图1

代码

\documentclass{article}
\usepackage{tikz}
\usepackage{etoolbox}% provides \preto

\usetikzlibrary{shapes,backgrounds}

\makeatletter
\newcommand*{\collect@draws}{}
\newcommand*{\reversedraws}{%
  \renewcommand*{\collect@draws}{}% initialize
  \look@for@draw
}
\newcommand*{\look@for@draw}{%
  \@ifnextchar\draw{%
    \catch@draw
  }{%
    \collect@draws % output the result
  }%
}
\def\catch@draw\draw#1;{%
  \preto\collect@draws{\draw#1;}%
  \look@for@draw
}
\makeatother

%%%% Declaring layers
\pgfdeclarelayer{foreground}
\pgfsetlayers{main,foreground}

%%%% The node on layer definition
\makeatletter
\pgfkeys{%
  /tikz/node on layer/.code={
    \gdef\node@@on@layer{%
      \setbox\tikz@tempbox=\hbox\bgroup\pgfonlayer{#1}\unhbox\tikz@tempbox\endpgfonlayer\egroup}
    \aftergroup\node@on@layer
  }}
\def\node@on@layer{\aftergroup\node@@on@layer}
\makeatother

%%%% Options
\tikzset{
    every node/.style={midway},
    every path/.style={fill=yellow},
    mid/.style={midway, inner sep=2pt, outer sep=0,minimum size=1mm, fill=yellow,node on layer=foreground},
}

\begin{document}
    \begin{tikzpicture}[scale = 4]
        \reversedraws
        \draw (0.445041,0.801937) rectangle (0,1) node {$1$};
        \draw (0.692021,0.356896) rectangle (1,1) node {$2$};
        \draw (0.692021,0.356895) rectangle (0,0) node {$3$};
        \draw (0.137063,0.158832) rectangle (0,1) node {$4$};
        \draw (0.384043,0.713791) rectangle (1,0) node[mid] {$5$};
        \draw (0.829084,0.515727) rectangle (0,1) node {$6$};
        \draw (0.521105,0.872622) rectangle (0,0) node {$7$};
    \end{tikzpicture}
\end{document}

答案2

xshift您可以使用和选项移动标签yshift（参见带有数字的矩形，5如标签）

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{shapes,backgrounds}

\usepackage{etoolbox}% provides \preto
\makeatletter
\newcommand*{\collect@draws}{}
\newcommand*{\reversedraws}{%
  \renewcommand*{\collect@draws}{}% initialize
   \look@for@draw
}
\newcommand*{\look@for@draw}{%
  \@ifnextchar\draw{%
    \catch@draw
  }{%
    \collect@draws % output the result
  }%
}
\def\catch@draw\draw#1;{%
  \preto\collect@draws{\draw#1;}%
  \look@for@draw
}
\makeatother

\begin{document}

\begin{tikzpicture}[scale = 4]
\reversedraws
\draw [fill=yellow] (0.445041,0.801937) rectangle (0,1) node[midway] {$1$};
\draw [fill=yellow] (0.692021,0.356896) rectangle (1,1) node[midway] {$2$};
\draw [fill=yellow] (0.692021,0.356895) rectangle (0,0) node[midway] {$3$};
\draw [fill=yellow] (0.137063,0.158832) rectangle (0,1) node[midway] {$4$};
\draw [fill=yellow] (0.384043,0.713791) rectangle (1,0) node[yshift=-5pt,xshift=5pt,midway] {$5$};
\draw [fill=yellow] (0.829084,0.515727) rectangle (0,1) node[midway] {$6$};
\draw [fill=yellow] (0.521105,0.872622) rectangle (0,0) node[midway] {$7$};
\end{tikzpicture}

\end{document}

在此处输入图片描述

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