在投影机中垂直对齐图像

在投影机中垂直对齐图像

我有一系列想要制作动画的图像beamer。在每一帧中,我希望有两幅图像,例如 A 和 B,垂直对齐并位于页面中央。所有图像大小相同。

我尝试使用 对齐图像\vspace{},但是当我穿过图像时,垂直空间会累积并且图像会向下滑动。

我应该如何对齐每一帧中的图像?

这是一个最小的工作示例:

\documentclass{beamer}
\begin{document}
\frame{
    \begin{figure}[t!]
    \includegraphics<1>[scale=.5]{fig/imageA1} \vspace{.1in}        
    \includegraphics<1>[scale=.5]{fig/imageB1}

    \includegraphics<2>[scale=.5]{fig/imageA2} \vspace{.1in}        
    \includegraphics<2>[scale=.5]{fig/imageB2} 

    \includegraphics<3>[scale=.5]{fig/imageA3} \vspace{.1in}        
    \includegraphics<3>[scale=.5]{fig/imageB3}

    \includegraphics<4>[scale=.5]{fig/imageA4} \vspace{.1in}        
    \includegraphics<4>[scale=.5]{fig/imageB4} 

      \end{figure} 
    }   
\end{document}

答案1

在框架中使用浮动环境(例如 figuretable)无法正常工作。要实现您的目标,请打开allowpagebreakT。使用 选项调整图形height。请参阅下面的代码以了解其余部分。

在此处输入图片描述

\documentclass{beamer}
\usepackage{graphicx}
\begin{document}
\frame[allowpagebreak,T]
{%
        \only<1>
        {%
            \centering
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image-a}

            \vfill
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image-a}
        }%

        \only<2>
        {%
            \centering
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image-b}

            \vfill
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image-b}
        }%

        \only<3>
        {%
            \centering
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image-c}

            \vfill
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image-c}
        }%

        \only<4>
        {%
            \centering
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image}

            \vfill
            \includegraphics[height=\dimexpr0.5\textheight-0.5in]{example-image}
        }%
}
\end{document}

有关创建 GIF 动画,请参阅我的另一个答案在这里

答案2

除了\vspace,您还可以使用\\来强制换行。

\documentclass{beamer}
\begin{document}
\frame{
    \begin{figure}[t!]
    \includegraphics<1>[scale=.5]{img} \\
    \includegraphics<1>[scale=.5]{img}

    \includegraphics<2>[scale=.5]{img} \\
    \includegraphics<2>[scale=.5]{img} 

    \includegraphics<3>[scale=.5]{img} \\
    \includegraphics<3>[scale=.5]{img}

    \includegraphics<4>[scale=.5]{img} \\
    \includegraphics<4>[scale=.5]{img} 

      \end{figure} 
    }   
\end{document}

答案3

如果您总共只有一个换行符,而不是每个图像对都有一个换行符,那么您的问题应该会消失。关键是您的\vspace{.1in}命令没有被<1><2><3>或屏蔽<4>

\documentclass{beamer}
\begin{document}
\frame{
  \begin{figure}[t!]
    \includegraphics<1>[scale=.5]{fig/imageA1}
    \includegraphics<2>[scale=.5]{fig/imageA2}
    \includegraphics<3>[scale=.5]{fig/imageA3}
    \includegraphics<4>[scale=.5]{fig/imageA4}
    \vspace{.1in}        
    \includegraphics<1>[scale=.5]{fig/imageB1}
    \includegraphics<2>[scale=.5]{fig/imageB2}
    \includegraphics<3>[scale=.5]{fig/imageB3}
    \includegraphics<4>[scale=.5]{fig/imageB4}
  \end{figure} 
}   
\end{document}

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