凯莱图尝试

Question

我尝试修改此网站上之前的 Cayley graph 帖子中的 latex 代码，但箭头连接不正确。前五个节点的图像看起来还不错，但之后就散了。我试图制作一个像下面附上的图像。抱歉有多个帐户，我将我的电子邮件连接到该帐户，这样我就不必再以访客身份发帖，我可以回复评论，这是我在之前的帖子中无法做到的。我提供了一个最低限度的工作示例，任何反馈都会有所帮助。

\documentclass[tikz,border=5]{standalone}
\usetikzlibrary{decorations.markings,arrows.meta}
\begin{document}

\begin{tikzpicture}[mid arrow/.style={postaction={
  decoration={markings, mark=at position 0.5 with {\arrow{Triangle}}},
  decorate}},looseness=0.5]

\foreach \i [count=\j, count=\r from 0] in {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}{
   \node (r\j) at (90+36-\j*36:3/2) {$\ifnum\i=1e\else r_\r\fi$};
}
\foreach \i [evaluate={\j=int(mod(\i, 5)+1);}] in {1,...,10}{
  \draw [blue, mid arrow] (r\i) to [bend left] node [auto] {$r_1$} (r\j);
  \draw [purple, mid arrow] (r\j) to [bend left] node [auto] {$r_1$} (r\i);
} 
\end{tikzpicture}

\end{document}

Answer 1

像这样的东西？但如果您要绘制其中的几个，您迟早需要坐下来阅读 TikZ 手册并阅读与您的需求相关的部分。

\documentclass[border=10pt,tikz,multi]{standalone}
\usetikzlibrary{decorations.markings,arrows.meta}
\begin{document}
\begin{tikzpicture}
  [
    mid arrow/.style={%
      postaction={%
        decoration={%
          markings, mark=at position 0.5 with {\arrow{Triangle}},
        },
        decorate,
      },
    },
    my label/.style={%
      auto, midway, font=\footnotesize, inner sep=1.5pt
    },
    looseness=0.5
  ]
  \colorlet{my colour}{black}%
  \foreach \i [count=\j, count=\r from 0, evaluate=\j as \k using {90+36-\j*36}] in {1,...,10}{
    \node [circle, fill, inner sep=0pt, minimum width=2.5pt, label={\k:$\ifnum\i=1e\else r_\r\fi$}] (r\j) at (90+36-\j*36:3/2) {};
  }
  \foreach \i [evaluate={\j=int(mod(\i,10)+1);}] in {1,...,10}{
    \ifodd\j \colorlet{my colour}{blue}\def\tempa{$d_1$}\else \colorlet{my colour}{purple}\def\tempa{$d_2$}\fi
    \draw [my colour, mid arrow] (r\i) to [bend left] node [my label] {\tempa} (r\j);
    \draw [my colour, mid arrow] (r\j) to [bend left] node [my label] {\tempa} (r\i);
  }
\end{tikzpicture}
\end{document}