![投影仪中列表和图片之间的箭头](https://linux22.com/image/243991/%E6%8A%95%E5%BD%B1%E4%BB%AA%E4%B8%AD%E5%88%97%E8%A1%A8%E5%92%8C%E5%9B%BE%E7%89%87%E4%B9%8B%E9%97%B4%E7%9A%84%E7%AE%AD%E5%A4%B4.png)
如何使用 tikz 在环境中的项目itemize
和图片上的点之间绘制箭头?
梅威瑟:
\documentclass{beamer}
%\usepackage{beamerthemeshadow}
\setbeamercovered{transparent}
\begin{document}
\section{section}
\begin{frame}
\frametitle{frame title}
\begin{columns}
\column{.4\textwidth}
\begin{block}{block title}
\begin{itemize}
\item <1-> stone
\item <2-> more stones
\item <3-> water
\end{itemize}
\end{block}
\column{.6\textwidth}
\begin{figure}[h]
\includegraphics[width=\textwidth]{25}%
\caption{Landscape}
\end{figure}
\end{columns}
\end{frame}
\end{document}
我想要实现这样的目标:
答案1
我找到的解决方案:
\documentclass{beamer}
\usepackage{beamerthemeshadow}
\setbeamercovered{transparent}
\usepackage{tikz}
\usetikzlibrary{arrows,shapes,backgrounds}
\begin{document}
\tikzstyle{every picture}+=[remember picture]
\tikzstyle{na} = [baseline=-.5ex]
\section{section}
\begin{frame}
\frametitle{frame title}
\begin{columns}
\begin{column}{.4\textwidth}
\begin{block}{block title}<1-5>
\begin{itemize}
\item <1-| alert@2> stone\,\tikz[na] \coordinate (Lstone);
\item <1-| alert@3> more stones\,\tikz[na] \coordinate (Lmorestones);
\item <1-| alert@4> water\,\tikz[na] \coordinate (Lwater);
\end{itemize}
\end{block}
\end{column}
\begin{column}{.6\textwidth}
%\begin{figure}[h]
\begin{tikzpicture}
\node [inner sep=0pt,above right]{
\includegraphics[width=\textwidth]{25}%
};
\path (1.45,1.1) coordinate (stone);
\path (3.45,1.1) coordinate (morestone);
\path (3.5,2.6) coordinate (water);
\end{tikzpicture}
% \end{figure}
\end{column}
\end{columns}
\begin{tikzpicture}[overlay]
\draw<2> [thin, red,opacity=.8, fill=red,fill opacity=0.3](stone) circle (4pt);
\path<2>[->,>=latex', red, shorten >=4pt, opacity=.6] (Lstone) edge [out=0, in=130] (stone);
\draw<3> [thin, red,opacity=.8, fill=red,fill opacity=0.3](morestone) circle (4pt);
\path<3>[->, >=latex', red, shorten >=4pt, opacity=.6] (Lmorestones) edge [out=0, in=150] (morestone);
\draw<4> [thin, red,opacity=.8, fill=red,fill opacity=0.3](water) circle (4pt);
\path<4>[->,>=latex',red, shorten >=4pt, opacity=.6] (Lwater) edge [out=0, in=200] (water);
\end{tikzpicture}
\end{frame}
\end{document}
为了变得更加优雅,我必须解决一些问题:设置与图片相关的节点;目前,如果我更改图片大小,我将不得不重新协调节点。我不喜欢箭头的“缩短解决方案”,因为如果我更改圆的直径,我必须手动更改值。