使用投影仪以箭头表示的旋转视图中的矩形框

Question

我想使用 beamer 构建四个带有箭头的矩形框，如下图所示。

我尝试了以下方法，但无法将文本放置在箭头上方和旁边。我想知道是否有人可以帮助我。提前谢谢您。

    \usepackage{tikz}
    \usetikzlibrary{positioning}
    \begin{frame}
    \centering
    \scalebox{0.6}[0.6]{
        \begin{tikzpicture}[>=stealth, place/.style={shape=rectangle,draw,rounded corners,fill=blue!25,},trans/.style={align=center},auto,scale=7]    
         \node[place,fill=green!25,inner sep=8, font=\Large ] (a1) {1\textsuperscript{st} TEXT};
         \node[right=1cm of a1,place,fill=green!25,inner sep=8, font=\Large ] (a2) {2\textsuperscript{nd} TEXT};
         \node[below=1cm of a2,place,fill=green!25,inner sep=8, font=\Large ] (a3) {3\textsuperscript{rd} TEXT};
         \node[left=1cm of a3,place,fill=green!25,inner sep=8, font=\Large ] (a4) {4\textsuperscript{th} TEXT};  
            \draw [->] (a1) -- (a2);
            \draw [->] (a2) -- (a3);
            \draw [->] (a3) -- (a4);       
        \end{tikzpicture}
    }
    \end{frame}

Answer 1

你可以node[midway] {f}向箭头添加：

\documentclass{beamer}

    \usepackage{tikz}
    \usetikzlibrary{positioning}

\begin{document}
    

    \begin{frame}
    \centering
    \scalebox{0.6}[0.6]{
        \begin{tikzpicture}[>=stealth, place/.style={shape=rectangle,draw,rounded corners,fill=blue!25,},trans/.style={align=center},auto,scale=7]    
         \node[place,fill=green!25,inner sep=8, font=\Large ] (a1) {1\textsuperscript{st} TEXT};
         \node[right=1cm of a1,place,fill=green!25,inner sep=8, font=\Large ] (a2) {2\textsuperscript{nd} TEXT};
         \node[below=1cm of a2,place,fill=green!25,inner sep=8, font=\Large ] (a3) {3\textsuperscript{rd} TEXT};
         \node[left=1cm of a3,place,fill=green!25,inner sep=8, font=\Large ] (a4) {4\textsuperscript{th} TEXT};  
            \draw [->] (a1) -- (a2) node[midway] {f};
            \draw [->] (a2) -- (a3) node[midway] {f};
            \draw [->] (a3) -- (a4) node[midway,above] {f};       
        \end{tikzpicture}
    }
    \end{frame}

    
\end{document}