I was wondering why predefined patterns like dashed, dotted, thick, etc., do not scaled when scaling the complete tikzpicture environment.
Minimal Example:
\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{figure}
\begin{tikzpicture}[transform shape, scale=.3]
\draw[very thick, dashed] (0,0) -- (10, 0);
\end{tikzpicture}
\end{figure}
\begin{figure}
\begin{tikzpicture}
\draw[very thick, dashed] (0,0) -- (10, 0);
\end{tikzpicture}
\end{figure}
\end{document}