在 Beamer 中创建点网格

Question

WI 编写了以下 Beamer 代码，

\documentclass{beamer}
\usetheme{Madrid}
\usepackage{tikz}


\begin{document}
 \begin{frame}{C}
   \begin{center}
    \begin{tikzpicture}
   
   \draw[brown] (-2,0.4) -- (2,0.4);
   \draw[-] (-4.5,0)--(4.5,0);
   \foreach \x/\name in {-4/$t_{1}$,-3/$t_{2}$,3/$t_{K-1}$,4/$t_{K}$}{
            \path[draw, fill=brown] (\x,0) circle[radius=2pt] node [above=2 mm, brown] {\name};
        }

 \end{tikzpicture} 
  \end{center}
   \end{frame}
     \end{document}

有没有办法将棕线（黑线上方）转换成点网格？

Answer 1

您可以添加“点”来绘制\draw[brown, dotted] (-2,0.4) -- (2,0.4);