Beamer：图中的overlayarea？

Question

在我的 Beamer 演示文稿中，我想在图形环境中动态切换图像。更准确地说，我的图形包含 9 个 3x3 的子浮点数，每个子浮点数都应在显示过程中在两个图像之间切换。

为了避免不同元素之间的一些 "tilting"，我认为在每个 subfloat 中使用一个 overlayarea 是个好主意。

遗憾的是，当在图形环境中使用时，overlayarea 似乎表现得很奇怪：我放入其中的所有东西都出现在 outside overlayarea ??

这是一个非常简短的例子：

\documentclass[9pt, aspectratio=43]{beamer}

\usepackage [francais]{babel}
\usepackage [T1]{fontenc}
\usepackage [utf8]{inputenc}

\usepackage[position=top]{subfig}
\usepackage{pdfpages}


\begin{document}

\begin{frame}
%% This works fine : 123 appears INSIDE the overlayarea
\fbox{\begin{overlayarea}{3cm}{2cm}
\fbox{123}
\end{overlayarea}}

%% This looks odd : 456 appears OUTSIDE the overlayarea
\begin{figure}
\fbox{\begin{overlayarea}{3cm}{2cm}
\fbox{456}
\end{overlayarea}}
\end{figure}

\end{frame}

\end{document}

也许我误用了这个环境？

非常感谢:)

BR

甜甜圈

Answer 1

快速解决方法：将子图像变形为固定高度的小页面：

\documentclass[9pt, aspectratio=43]{beamer}

\begin{document}

\begin{frame}

\begin{figure}
\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%
\hfill
\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%
\hfill
\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%

\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%%
\end{minipage}%
\hfill
\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%
\hfill
\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%

\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%
\hfill
\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%
\hfill
\begin{minipage}[c][.3\textheight][c]{.3\textwidth}
\centering
\includegraphics<1>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-9x16}%
\includegraphics<2>[width=\textwidth,height=.3\textheight,keepaspectratio]{example-image-duck}%
\end{minipage}%
\end{figure}

\end{frame}

\end{document}

Beamer：图中的overlayarea？

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