\documentclass{beamer}
\begin{document}

\begin{frame}{A drawing}
  This is how you draw that image as one line.

  \only<1>{\includegraphics[height=0.7\textheight]{ps_example/drawing_0}}%
  \only<2>{\includegraphics[height=0.7\textheight]{ps_example/drawing_1}}%
  \only<3>{\includegraphics[height=0.7\textheight]{ps_example/drawing_2}}%
  \only<4>{\includegraphics[height=0.7\textheight]{ps_example/drawing_3}}%
  \only<5>{\includegraphics[height=0.7\textheight]{ps_example/drawing_4}}%
  \only<6>{\includegraphics[height=0.7\textheight]{ps_example/drawing_5}}%
  \only<7>{\includegraphics[height=0.7\textheight]{ps_example/drawing_6}}%
  \only<8>{\includegraphics[height=0.7\textheight]{ps_example/drawing_7}}%
  \only<9>{\includegraphics[height=0.7\textheight]{ps_example/drawing_8}}%

\end{frame}

\end{document}
