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如何使嵌套矩形正确水平对齐？

tag-icon • tag-icon tikz-pgf
如何使嵌套矩形正确水平对齐？

我知道嵌套 tikz 图片是 经过考虑的 坏的，但我还是这么做了，因为我不想手动定位。我嵌套了几个类似于另一个关于圈子的问题。问题在于矩形未正确居中，这可以在左右堆叠的垂直线上看到。

嵌套

这是嵌套引起的问题还是我做错了其他事情？

\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{positioning}

\begin{document}
\begin{tikzpicture}[
    class/.style={
      draw,
      align=center,
      rectangle,
      rounded corners=20pt,
      minimum size=0pt,
      inner sep=5pt,
      outer sep=0pt,
    },
    label/.style={
      rectangle,
      align=center,
      inner sep=6pt,
      outer sep=4pt, % shifts labels a bit down
      node distance=0pt,
    },
  ]

  \node [class] (csl) {
    \begin{tikzpicture}
      \node [class] (ptime) {
        \begin{tikzpicture}
          \node [class] (mcfl) {
            \begin{tikzpicture}
              \node [class] (rpl) {
                \begin{tikzpicture}
                  \node [class] (tal) {
                    \begin{tikzpicture}
                      \node [class,rounded corners=5pt] (cfl) {CFG};
                      \node [label, below=of cfl] {TAG, LIG, CCG, HG };
                    \end{tikzpicture}
                  };
                  \node [label, below=of tal] {RPG, (2,2)-MCFG};
                \end{tikzpicture}
              };
              \node [label, below=of rpl] {MCFG, LCFRS};
            \end{tikzpicture}
          };
          \node [label, below=of mcfl] {RCG, simple LMG \\ (= PTIME)};
        \end{tikzpicture}
      };
      \node [label, below=of ptime] {CSG};
    \end{tikzpicture}
  };

\end{tikzpicture}
\end{document}

答案1

将下面的代码与您的代码进行比较。仍有改进的空间。

\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{positioning}
\usetikzlibrary{backgrounds,fit}
\tikzset{every fit/.append style=text badly centered}
\tikzset{class/.style={
      draw,
      rectangle,
      rounded corners=20pt,
      inner ysep=5pt,
    },
        label/.style={
      align=center,
      inner sep=6pt,
      outer ysep=4pt,
      node distance=0pt,
    }
}


\begin{document}
\begin{tikzpicture}

\node [class,rounded corners=5pt] (cfl) {CFG};
\node [label, below=of cfl] (tal) {TAG, LIG, CCG, HG };
\node [label, below=of tal] (rpl) {RPG, (2,2)-MCFG};
\node [label, below=of rpl] (mcfl) {MCFG, LCFRS};
\node [label, below=of mcfl] (ptime) {RCG, simple LMG \\ (= PTIME)};
\node [label, below=of ptime] (csl) {CSG};

\begin{pgfonlayer}{background}
    \node [class, inner xsep=5em, fit=(cfl) (tal) (rpl) (mcfl) (ptime) (csl)] {};
    \node [class, inner xsep=4em, fit=(cfl) (tal) (rpl) (mcfl) (ptime)] {};
    \node [class, inner xsep=3em, fit=(cfl) (tal) (rpl) (mcfl)] {};
    \node [class, inner xsep=2em, fit=(cfl) (tal) (rpl)] {};
    \node [class, inner xsep=1em, fit=(cfl) (tal)] {};
\end{pgfonlayer}

\end{tikzpicture}
\end{document}

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