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Wie kann ich Text über die Ränder hinaus schreiben?

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Wie kann ich Text über die Ränder hinaus schreiben?

Ich habe den folgenden Code, um einen Graphen mit gerichteten Kanten zu zeichnen:

\begin{tikzpicture}
% vertices
\node[vertex] (1) at  (0,0) {$\times$};
\node[below left=1cm of 1] (A) {};
\node[below right=1cm of 1] (B) {};
\node[vertex] (2) at  (2,0) {$+$};
\node[below left=1cm of 2] (C) {};
\node[below right=1cm of 2] (D) {};
\node[vertex] (3) at  (4,0) {$\times$};
\node[below left=1cm of 3] (E) {};
\node[below right=1cm of 3] (F) {};
\node[vertex] (4) at  (1,2) {$+$};
\node[vertex] (5) at  (3,2) {$\times$};
\node[vertex] (6) at  (2,4) {$+$};
\node[above=1cm of 6] (G) {};
%edges
\draw[edge] (1) to (4);
\draw[edge] (1) to (5);
\draw[edge] (2) to (4);
\draw[edge] (3) to (5);
\draw[edge] (4) to (6);
\draw[edge] (5) to (6);
\draw[edge] (A) to (1);
\draw[edge] (B) to (1);
\draw[edge] (C) to (2);
\draw[edge] (D) to (2);
\draw[edge] (E) to (3);
\draw[edge] (F) to (3);
\draw[edge] (6) to (G);
\end{tikzpicture}

mit diesen Optionen

\tikzset{vertex/.style = {shape=circle,draw,minimum size=1.5em}}
\tikzset{edge/.style = {->,> = latex'}}

was zu folgender Grafik führt

Bildbeschreibung hier eingeben

Gibt es eine Möglichkeit, Text über, unter ... jedem Rand hinzuzufügen? Könnte ich den Text außerdem so schreiben, dass er in Bezug auf das Dokument zentriert ist, anstatt am Rand selbst?

Antwort1

Bildbeschreibung hier eingeben

\documentclass{standalone}
\usepackage{tikz}

\usetikzlibrary{calc,positioning,angles,arrows.meta,quotes,intersections}
\usetikzlibrary{through}

\begin{document}

\begin{tikzpicture}\tikzset{vertex/.style = {shape=circle,draw,minimum size=1.5em}}
\tikzset{edge/.style = {->}}
% vertices
\node[vertex] (1) at  (0,0) {$\times$};
\node[below left=1cm of 1] (A) {};
\node[below right=1cm of 1] (B) {};
\node[vertex] (2) at  (2,0) {$+$};
\node[below left=1cm of 2] (C) {};
\node[below right=1cm of 2] (D) {};
\node[vertex] (3) at  (4,0) {$\times$};
\node[below left=1cm of 3] (E) {};
\node[below right=1cm of 3] (F) {};
\node[vertex] (4) at  (1,2) {$+$};
\node[vertex] (5) at  (3,2) {$\times$};
\node[vertex] (6) at  (2,4) {$+$};
\node[above=1cm of 6] (G) {};
%edges
\draw[edge] (1) to node[left, sloped,xshift=4pt,yshift=4pt]{\tiny AA}(4);%<---instead of left can use right/ above/ below
\draw[edge] (1) to (5);
\draw[edge] (2) to (4);
\draw[edge] (3) to (5);
\draw[edge] (4) to (6);
\draw[edge] (5) to (6);
\draw[edge] (A) to (1);
\draw[edge] (B) to (1);
\draw[edge] (C) to (2);
\draw[edge] (D) to (2);
\draw[edge] (E) to (3);
\draw[edge] (F) to (3);
\draw[edge] (6) to (G);
\end{tikzpicture}
 \end{document}

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