在 Tikz 中调整 fill=white

Question

在下面的 MWE 中，我正在寻找一种方法来调整边界fill=white，使其不干扰两个箭头。如果我删除规定fill=white，虚线箭头中会有一个点妨碍 3；有没有办法删除那个点，大概是通过调整的边界fill=white？

\documentclass[12pt]{article}
\usepackage{Alegreya}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}[scale=0.45]

\node (x) at    (0:0)   {$x$};
\node (y) at    (0:6)   {$y$};
\node (q) at    (0:9)   {$q$};

\path[->,dashed]    (x) edge [bend right] (q);
\path[->,dotted]    (y) edge [bend right] node [midway,fill=white] {\tiny 3} (q);

\end{tikzpicture}
\end{document}

Answer 1

杀死\node和；另外，使用键控制位置outer sep；我用的和原来的一样：inner seppos0.5midway

\documentclass[12pt]{article}
\usepackage{Alegreya}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}[scale=0.45]

\node (x) at    (0:0)   {$x$};
\node (y) at    (0:6)   {$y$};
\node (q) at    (0:9)   {$q$};

\path[->,dashed]    (x) edge [bend right] (q);
\path[->,dotted]    (y) edge [bend right] node [pos=0.5,fill=white,inner sep=0pt,outer sep=0pt] {\tiny 3} (q);

\end{tikzpicture}
\end{document}

above您还可以使用和类似的键稍微移动它：

\documentclass[12pt]{article}
\usepackage{Alegreya}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}[scale=0.45]

\node (x) at    (0:0)   {$x$};
\node (y) at    (0:6)   {$y$};
\node (q) at    (0:9)   {$q$};

\path[->,dashed]    (x) edge [bend right] (q);
\path[->,dotted]    (y) edge [bend right] node [pos=0.5,fill=white,inner sep=0pt,outer sep=0pt,above=2pt] {\tiny 3} (q);

\end{tikzpicture}
\end{document}