I'd like to draw a tikz picture which exactly fits the text width, which I achieve by just using multiples of \textwidth
for all x-dimensions inside the picture.
However, there are some nodes that I want to place on the page margin. Preferably within the same tikzpicture (but not necessarily). What is the proper way to do it?
I know I could workaround that with scaling the tikzpicture and resizing the box afterwards, until it fits, but that solution does not feel right. I'm thinking more on a solution with nodes, which are not considered for the determination of the total width of the tikzpicture.
MWE
\documentclass{beamer}
\usepackage{tikz}
\usepackage{kantlipsum}
\begin{document}
\begin{frame}
\kant[9]
\def\rh{1cm}
\def\rw{\textwidth}
\begin{tikzpicture}
\node[ minimum width = \rw, minimum height = \rh,
draw = blue, thick,
fill opacity = 0.3, text opacity = 1,
align = center] (A1) at (0,0) {Block with text width};
\end{tikzpicture}
\begin{tikzpicture}
\node[ minimum width = \rw, minimum height = \rh,
draw = blue, thick,
fill opacity = 0.3, text opacity = 1,
align = center] (A2) at (0,0) {Block with text width};
\node[circle,left] at (A1.west) {A};
\node[circle,right] at (A2.east) {B};
\end{tikzpicture}
\end{frame}
\end{document}