%
% apfel.tex -- Apfelschale als Klothoide
%
% (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule
%
\bgroup
\input{../slides/fresnel/eulerpath.tex}
\begin{frame}[t]
\setlength{\abovedisplayskip}{5pt}
\setlength{\belowdisplayskip}{5pt}
\frametitle{Apfelschale}
\begin{center}
\begin{tikzpicture}[>=latex,thick]
\begin{scope}
\clip(-1,-1) rectangle (7,6);
\uncover<2->{
\node at (3.1,2.2) [rotate=-3]
	{\includegraphics[width=9.4cm]{../slides/fresnel/apfel.png}};
}
\end{scope}
\draw[color=gray!50] (0,0) rectangle (4,4);
\draw[->] (-0.5,0) -- (7.5,0) coordinate[label={$C(t)$}];
\draw[->] (0,-0.5) -- (0,6.0) coordinate[label={left:$S(t)$}];
\uncover<3->{
\begin{scope}[scale=8]
\draw[color=red,opacity=0.5,line width=1.4pt] \fresnela;
\end{scope}
}
\end{tikzpicture}
\end{center}
\end{frame}
\egroup