我有一個用 Tikz 製作的圖表，它看起來像這樣：
我試著更清楚地說明「xx」屬於哪一條邊。如何才能做到這一點？
首先，我嘗試縮放整個 tikzimage，因為我希望它與頁面一樣寬，而且我認為邊緣標籤會有更多空間。但似乎仍然沒有解決問題。我也遇到了紅色箭頭的問題。我想在圖表之外而不是在同一方向上睡覺，但我似乎無法弄清楚如何更改弧屬性以使其看起來不錯。
現在看起來像：
我使用的程式碼是這樣的：
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{arrows.meta}
\usetikzlibrary{arrows,shapes,decorations,automata,backgrounds,petri}
\begin{document}
\begin{tikzpicture}[scale=1.8]
\begin{scope}[every node/.style={circle,thick,draw}]
\node (A) at (0,3) {A};
\node (B) at (3,3) {B};
\node (C) at (6,3) {C};
\node (D) at (6,0) {D};
\node (E) at (6,-3) {E};
\node (F) at (3,-3) {F};
\node (G) at (0,-3) {G};
\node (H) at (0,0) {H};
\end{scope}
\begin{scope}[>={Stealth[black]},
every node/.style={fill=white,circle},
every edge/.style={draw=black}]
\draw [red,-] (A.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (A);
\path [-] (A) edge node {$xx$} (B);
\path [-] (A) edge[bend left=60] node {$xx$} (C);
\path [-] (A) edge node {$xx$} (D);
\path [-] (A) edge node {$xx$} (E);
\path [-] (A) edge node {$xx$} (F);
\path [-] (A) edge[bend right=60] node {$xx$} (G);
\path [-] (A) edge node {$xx$} (H);
\draw [red,-] (B.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (B);
\path [-] (B) edge node {$xx$} (C);
\path [-] (B) edge node {$xx$} (D);
\path [-] (B) edge node {$xx$} (E);
\path [-] (B) edge node {$xx$} (F);
\path [-] (B) edge node {$xx$} (G);
\path [-] (B) edge node {$xx$} (H);
\draw [red,-] (C.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (C);
\path [-] (C) edge node {$xx$} (D);
\path [-] (C) edge[bend left=60] node {$xx$} (E);
\path [-] (C) edge node {$xx$} (F);
\path [-] (C) edge node {$xx$} (G);
\path [-] (C) edge node {$xx$} (H);
\draw [red,-] (D.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (D);
\path [-] (D) edge node {$xx$} (E);
\path [-] (D) edge node {$xx$} (F);
\path [-] (D) edge node {$xx$} (G);
\path [-] (D) edge node {$xx$} (H);
\draw [red,-] (E.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (E);
\path [-] (E) edge node {$xx$} (F);
\path [-] (E) edge[bend left=60] node {$xx$} (G);
\path [-] (E) edge node {$xx$} (H);
\draw [red,-] (F.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (F);
\path [-] (F) edge node {$xx$} (G);
\path [-] (F) edge node {$xx$} (H);
\draw [red,-] (G.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (G);
\path [-] (G) edge node {$xx$} (H);
\draw [red,-] (H.90) arc (0:264:4mm) node[pos=0.2,above left] {$xx$} (H);
\end{scope}
\end{tikzpicture}
\end{document}