我尝试缩放箭头。在第一个图中，白色箭头明显比灰色箭头宽。在第二个图中，它们看起来很相似。但是参数的比例相同。我应该如何调整？非常感谢！
\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{shapes.arrows}
\begin{document}
\begin{frame}{A}
\begin{figure}[H]
\centering
\begin{tikzpicture}[xscale=4,yscale=4]
\draw [fill=white] (0,-0.8) circle [radius=0.1];
\node[draw, single arrow,
minimum height=20mm, minimum width=12mm,
single arrow head extend=2mm,
anchor=west, rotate=-90] at (0,-1) {};
\node[draw, single arrow,
minimum height=23mm, minimum width=4mm,
single arrow head extend=2mm,
anchor=west, rotate=-125, fill=gray] at (-0.3,-1) {};
\node[draw, single arrow,
minimum height=23mm, minimum width=4mm,
single arrow head extend=2mm,
anchor=west, rotate=-55, fill=gray] at (0.3,-1) {};
\draw (-0.1,-1.6) rectangle (0.1,-1.8);
\draw (-0.8,-1.6) rectangle (-0.6,-1.8);
\draw (0.6,-1.6) rectangle (0.8,-1.8);
\end{tikzpicture}
\end{figure}
\end{frame}
\begin{frame}{B}
\begin{figure}[H]
\centering
\begin{tikzpicture}[xscale=2,yscale=2]
\draw [fill=white] (0,-0.8) circle [radius=0.1];
\node[draw, single arrow,
minimum height=10mm, minimum width=6mm,
single arrow head extend=1mm,
anchor=west, rotate=-90] at (0,-1) {};
\node[draw, single arrow,
minimum height=11.5mm, minimum width=2mm,
single arrow head extend=1mm,
anchor=west, rotate=-125, fill=gray] at (-0.3,-1) {};
\node[draw, single arrow,
minimum height=11.5mm, minimum width=2mm,
single arrow head extend=1mm,
anchor=west, rotate=-55, fill=gray] at (0.3,-1) {};
\draw (-0.1,-1.6) rectangle (0.1,-1.8);
\draw (-0.8,-1.6) rectangle (-0.6,-1.8);
\draw (0.6,-1.6) rectangle (0.8,-1.8);
\end{tikzpicture}
\end{figure}
\end{frame}
\end{document}
答案1
这是您需要的嗎？
\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{shapes.arrows}
\begin{document}
\begin{frame}{A}
\begin{figure}[H]
\centering
\begin{tikzpicture}[xscale=4,yscale=4]
\draw [fill=white] (0,-0.8) circle [radius=0.1];
\node[draw, single arrow,scale=0.2,%<<<<<<<<<<<<<<
minimum height=20mm, minimum width=12mm,
single arrow head extend=2mm,
anchor=west, rotate=-90] at (0,-1) {};
\node[draw, single arrow,scale=0.5,%<<<<<<<<<<<<<<
minimum height=23mm, minimum width=4mm,
single arrow head extend=2mm,
anchor=west, rotate=-125, fill=gray] at (-0.3,-1) {};
\node[draw, single arrow,scale=0.9,%<<<<<<<<<<<<<<
minimum height=23mm, minimum width=4mm,
single arrow head extend=2mm,
anchor=west, rotate=-55, fill=gray] at (0.3,-1) {};
\draw (-0.1,-1.6) rectangle (0.1,-1.8);
\draw (-0.8,-1.6) rectangle (-0.6,-1.8);
\draw (0.6,-1.6) rectangle (0.8,-1.8);
\end{tikzpicture}
\end{figure}
\end{frame}
\end{document}