答案1
答案2
例如,您可以使用 绘制弧线to
(需要两次编译)。贝塞尔曲线也是可行的,请查看文档。
\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{frame}
\begin{tikzpicture}[overlay,remember picture]
\fill[draw=black,thick,fill=blue] ([yshift=1.5cm]current page.south west) to[in=30,out=50] ([yshift=1.5cm]current page.south east)--
(current page.south east)--(current page.south west)--cycle;
\end{tikzpicture}
\end{frame}
\end{document}