I have a tikz picture with two nodes and bidirectional arrows between them (two separate arrows - one in each direction). I want to enclose these arrows using a ellipse, something as shown in the figure below, and then use an arrow to point to some text.
I know it can be done using the
fit
package but since I dont have markers for these arrows, I cant figure out exactly what to do. The existing figure code is shown below:
\begin{tikzpicture}[every node/.style={minimum height={1cm},thin,align=center},>={LaTeX[width=2.5mm]},proc/.style={shape=ellipse, draw},node distance = 1.5cm]
\node[draw] (A) {a};
\node[draw, below= of A] (B) {b};
\draw[->](A) to[bend right] (B);
\draw[->](B) to[bend right] (A);
\end{tikzpicture}
It would be great if someone could guide me to creating this red ellipse around the two arrows! TIA