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在 Beamer（TikZ）中一次显示图形的一个部分

tag-icon • tag-icon tikz-pgf beamer pause
在 Beamer（TikZ）中一次显示图形的一个部分

我在 TikZ 中绘制了两幅图像，我想一次显示一个元素。具体来说，我想先显示左侧的圆圈，然后显示其周围的椭圆。然后显示右侧的圆圈，然后显示其周围的椭圆。我尝试使用 \pause、\only、\visible 以及我能找到的其他任何命令，但我无法使其工作（使用上述所有命令时都会出现编译错误）。

\documentclass{beamer}
\mode<presentation>
{
%  \usetheme{default}      % or try Darmstadt, Madrid, Warsaw, ...
%  \usecolortheme{default} % or try albatross, beaver, crane, ...
%  \usefonttheme{default}  % or try serif, structurebold, ...
  \setbeamertemplate{navigation symbols}{}
  \setbeamertemplate{caption}[numbered]
}

\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{verbatim}
\usepackage{tikz}
\usetikzlibrary{arrows, arrows.meta, 
                backgrounds,
                calc,
                decorations.pathmorphing,
                patterns, positioning, 
                quotes,
                shapes,
                tikzmark
                }
%\tikzstyle{every picture}+=[remember picture, overlay]
\usetikzlibrary{overlay-beamer-styles}
\usepackage{tcolorbox}
\tcbuselibrary{raster}
\tcbuselibrary{theorems}
\usepackage{makecell} %for the thead command to break up header
%\usepackage{fourier,erewhon}
%\usepackage{amssymb, amsbsy}
\usepackage{array, booktabs, longtable}
\usepackage{graphicx}
%\usepackage[x11names, table]{xcolor}
\usepackage{caption}


%% start
\begin{document}


\section{Problem Setup, History, \& Our Result: A Snapshot}

\begin{frame}[t]{Def} 
    \newtcbtheorem[number within = section]{mydef}{Problem Statement}{colback=orange!20, colframe=blue!25}{ps}
    \tcbset{colframe=red!75!black, colback=yellow!25!white}             

    \begin{mydef}{Definition}{probStatement}
        Given stuff, prove: 
        \begin{equation*}
        \tcboxmath[colframe=red!75!black, colback=yellow!25!white]
        {a + b = c}
        \end{equation*}
    \end{mydef}
    \begin{tikzpicture}
        \coordinate (c) at (2.2, -0.2); 
        \draw[black, thick](c) circle (50 pt);
        \draw[black, fill = green!10, rotate = 50, opacity = 0.25] (c) ellipse (60 pt and 10 pt);
        \draw[black, fill = red!10, rotate = 30, opacity = 0.25] (c) ellipse (20 pt and 10 pt);
        \draw[black, fill = blue!10, rotate = 100, opacity = 0.25] (c) ellipse (25 pt and 45 pt);
        \draw[black, fill = teal!20, rotate = 110, opacity = 0.25] (c) ellipse (35 pt and 70 pt);
        \draw[black, fill = magenta!30, rotate = 240, opacity = 0.25] (c) ellipse (45 pt and 65 pt);

        \coordinate (cCovering) at (8.5, -0.2); 
        \draw[black, thick](cCovering) circle (50 pt);
        \draw[black, fill = red!10, rotate = 30, opacity = 0.25] (cCovering) ellipse (20 pt and 10 pt);
        \draw[black, fill = blue!10, rotate = 100, opacity = 0.25] (cCovering) ellipse (25 pt and 45 pt);
        \draw[black, fill = green!10, rotate = 50, opacity = 0.25] (cCovering) ellipse (10 pt and 30 pt);
        \draw[black, fill = teal!20, rotate = 50, opacity = 0.25] (cCovering) ellipse (75 pt and 20 pt);
        \draw[black, fill = gray!30, rotate = 280, opacity = 0.25] (cCovering) ellipse (45 pt and 65 pt);
    \end{tikzpicture}
\end{frame}
\end{document}

答案1

有两个问题：首先，当你在有断点的幻灯片中定义一个新定理时，这会导致问题。也许最简单的解决办法是移动

\newtcbtheorem[number within = section,reset counter on overlays]{mydef}{Problem Statement}{colback=orange!20, colframe=blue!25}{ps}

在幻灯片之前。请注意reset counter on overlays，这可避免计数器在每次休息后增加。然后您可以使用\uncover或visible on来自overlay-beamer-styles库。但是，后者通过将不透明度设置为 0 来工作，并且由于您明确为椭圆设置了它，因此您可能希望将uncover其用于椭圆。

\documentclass{beamer}
\mode<presentation>
{
%  \usetheme{default}      % or try Darmstadt, Madrid, Warsaw, ...
%  \usecolortheme{default} % or try albatross, beaver, crane, ...
%  \usefonttheme{default}  % or try serif, structurebold, ...
  \setbeamertemplate{navigation symbols}{}
  \setbeamertemplate{caption}[numbered]
}

\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{verbatim}
\usepackage{tikz}
\usetikzlibrary{arrows, arrows.meta, 
                backgrounds,
                calc,
                decorations.pathmorphing,
                patterns, positioning, 
                quotes,
                shapes,
                tikzmark
                }
\usetikzlibrary{overlay-beamer-styles}
\usepackage{tcolorbox}
\tcbuselibrary{raster}
\tcbuselibrary{theorems}
\usepackage{makecell} %for the thead command to break up header
%\usepackage{fourier,erewhon}
%\usepackage{amssymb, amsbsy}
\usepackage{array, booktabs, longtable}
\usepackage{graphicx}
%\usepackage[x11names, table]{xcolor}
\usepackage{caption}


%% start
\newtcbtheorem[number within = section,reset counter on overlays]{mydef}{Problem Statement}{colback=orange!20, colframe=blue!25}{ps}
\begin{document}


\section{Problem Setup, History, \& Our Result: A Snapshot}

\begin{frame}[t]
\frametitle{Def} 
    \tcbset{colframe=red!75!black, colback=yellow!25!white}             
    \begin{mydef}{Definition}{probStatement}
        Given stuff, prove: 
        \begin{equation*}
        \tcboxmath[colframe=red!75!black, colback=yellow!25!white]
        {a + b = c}
        \end{equation*}
    \end{mydef}
    \begin{tikzpicture}
        \coordinate (c) at (2.2, -0.2); 
        \draw[black, thick](c) circle (50 pt);
        \uncover<2->{
          \draw[black, fill = green!10, rotate = 50, opacity = 0.25] (c) ellipse (60 pt and 10 pt);
          \draw[black, fill = red!10, rotate = 30, opacity = 0.25] (c) ellipse (20 pt and 10 pt);
          \draw[black, fill = blue!10, rotate = 100, opacity = 0.25] (c) ellipse (25 pt and 45 pt);
          \draw[black, fill = teal!20, rotate = 110, opacity = 0.25] (c) ellipse (35 pt and 70 pt);
          \draw[black, fill = magenta!30, rotate = 240, opacity = 0.25] (c) ellipse (45 pt and 65 pt);
        }

        \coordinate (cCovering) at (8, -0.2); 
        \draw[black, thick,visible on=<3->](cCovering) circle (50 pt);
        \uncover<4->{
          \draw[black, fill = red!10, rotate = 30, opacity = 0.25] (cCovering) ellipse (20 pt and 10 pt);
          \draw[black, fill = blue!10, rotate = 100, opacity = 0.25] (cCovering) ellipse (25 pt and 45 pt);
          \draw[black, fill = green!10, rotate = 50, opacity = 0.25] (cCovering) ellipse (10 pt and 30 pt);
          \draw[black, fill = teal!20, rotate = 50, opacity = 0.25] (cCovering) ellipse (75 pt and 20 pt);
          \draw[black, fill = gray!30, rotate = 280, opacity = 0.25] (cCovering) ellipse (45 pt and 65 pt);
         }
    \end{tikzpicture}
\end{frame}
\end{document}

在此处输入图片描述

答案2

我发现以下代码有效：

\documentclass{beamer}
\mode<presentation>
{
%  \usetheme{default}      % or try Darmstadt, Madrid, Warsaw, ...
%  \usecolortheme{default} % or try albatross, beaver, crane, ...
%  \usefonttheme{default}  % or try serif, structurebold, ...
  \setbeamertemplate{navigation symbols}{}
  \setbeamertemplate{caption}[numbered]
}

\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{verbatim}
\usepackage{tikz}
\usetikzlibrary{arrows, arrows.meta, 
                backgrounds,
                calc,
                decorations.pathmorphing,
                patterns, positioning, 
                quotes,
                shapes,
                tikzmark
                }
%\tikzstyle{every picture}+=[remember picture, overlay]
\usetikzlibrary{overlay-beamer-styles}
\usepackage{tcolorbox}
\tcbuselibrary{raster}
\tcbuselibrary{theorems}
\newtcbtheorem[number within = section]{mydef}{Problem Statement}{colback=orange!20, colframe=blue!25}{ps}
\tcbset{colframe=red!75!black, colback=yellow!25!white}  
\usepackage{makecell} %for the thead command to break up header
%\usepackage{fourier,erewhon}
%\usepackage{amssymb, amsbsy}
\usepackage{array, booktabs, longtable}
\usepackage{graphicx}
%\usepackage[x11names, table]{xcolor}
\usepackage{caption}


%% start
\begin{document}


\section{Problem Setup, History, \& Our Result: A Snapshot}

\begin{frame}[t]{Def}            

    \begin{mydef}{Definition}{probStatement}
        Given stuff, prove: 
        \begin{equation*}
        \tcboxmath[colframe=red!75!black, colback=yellow!25!white]
        {a + b = c}
        \end{equation*}
    \end{mydef}
    \begin{tikzpicture}
        \coordinate (c) at (2.2, -0.2);
\onslide<1->{
        \draw[black, thick](c) circle (50 pt);
    }
\onslide<2->{
        \draw[black, fill = green!10, rotate = 50, opacity = 0.25] (c) ellipse (60 pt and 10 pt);

        \draw[black, fill = red!10, rotate = 30, opacity = 0.25] (c) ellipse (20 pt and 10 pt);
        \draw[black, fill = blue!10, rotate = 100, opacity = 0.25] (c) ellipse (25 pt and 45 pt);
        \draw[black, fill = teal!20, rotate = 110, opacity = 0.25] (c) ellipse (35 pt and 70 pt);
        \draw[black, fill = magenta!30, rotate = 240, opacity = 0.25] (c) ellipse (45 pt and 65 pt);
}
        \coordinate (cCovering) at (8.5, -0.2);
\onslide<3->{
        \draw[black, thick](cCovering) circle (50 pt);
    }
\onslide<4->{
        \draw[black, fill = red!10, rotate = 30, opacity = 0.25] (cCovering) ellipse (20 pt and 10 pt);
        \draw[black, fill = blue!10, rotate = 100, opacity = 0.25] (cCovering) ellipse (25 pt and 45 pt);
        \draw[black, fill = green!10, rotate = 50, opacity = 0.25] (cCovering) ellipse (10 pt and 30 pt);
        \draw[black, fill = teal!20, rotate = 50, opacity = 0.25] (cCovering) ellipse (75 pt and 20 pt);
        \draw[black, fill = gray!30, rotate = 280, opacity = 0.25] (cCovering) ellipse (45 pt and 65 pt);
    }
    \end{tikzpicture}
\end{frame}
\end{document}

在此处输入图片描述

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