用曲线连接点

Question

我正在尝试用乳胶画一些类似的东西。

这就是我能做的

\begin{tikzpicture}[line/.style={-},thick]
        \node (a) at (1,1) {1};
        \node (b) at (2,1) {2};
        \node (c) at (3,1) {3};
        \node (d) at  (4,1) {4};
        \node (e) at (5,1) {5};
        \node (f) at (6,1) {6};
        \node (g) at (7,1) {7};
        \node (h) at (8,1) {8};
        \path [bend left, line] (a) edge (c);
        \path [bend left,line]   (c) edge (h); 
        \path [bend left,line]   (e) edge (h); 
        \end{tikzpicture}

但输出结果如下：

这不是我想要的效果。我该如何改善我的图片？

Answer 1

好点吗？

\documentclass[tikz,border=3.14mm]{standalone}

\begin{document}
    \begin{tikzpicture}
        \foreach \i in {1,...,8}
            \coordinate[circle,inner sep=0pt,fill=black,minimum size=2pt,label=below:{\i}] (\i) at (\i,0) {};
        
        \foreach \A/\B in {1/3,3/8,5/7}
            \draw (\A) to[bend left=70] (\B);
    \end{tikzpicture}
\end{document}