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将此自动机定位在投影机中

tag-icon • tag-icon tikz-pgf beamer positioning automata
将此自动机定位在投影机中

以下问题可能看起来很像是重复的，但不幸的是我自己无法弄清楚：

在以下 MWE 中，我尝试将自动机放在右上角。我非常怀疑插入节点并使用“记住”和“覆盖”是否可行，但不幸的是，我仍然缺少正确的组合来使其工作。

有谁能帮我解决这个问题？提前谢谢了！

梅威瑟：

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{arrows,automata, positioning}
\usepackage[ruled,linesnumbered]{algorithm2e}
\usepackage{setspace}
\SetKwInOut{Input}{Input}\SetKwInOut{Output}{Output}

\begin{document}
    
\begin{frame}[t]{Minimal consistent automata ($ |\Sigma| \geq 2 $)}
    \begin{block}{}
        The plan: \textbullet  construction of a sample which provokes $ \geq 3 $ states
    \end{block}
%           \begin{tikzpicture}[remember picture,overlay]
%                       \node[opacity=1,xshift=5.5cm,yshift=3cm,at=(current page.center)] {
            \begin{tikzpicture}
                                [scale = 0.4, transform shape,
                                -> , >= stealth,
                                shorten >=0pt ,
                                node distance =2.5 cm ,
                                initial text = ,
                                semithick ]
                                \node[state, initial] (q1) {$ \varepsilon $};
                                \node[state, accepting] (q2) [right = 2cm of q1]{$ 0 $};
                                \path[->] 
                                (q1) edge [below] node {0} (q2)
                                (q1) edge [loop above] node {1} (q1)
                                (q2) edge [loop above] node {1} (q2)
                                (q2) edge [bend right = 15, above] node {0} (q1)
                                ;
%                       };  
        \end{tikzpicture}
    
\end{frame} 

\end{document}

答案1

将您的图形插入位于右上角的节点中。

A

\documentclass{beamer}  

\usepackage{tikz}
\usetikzlibrary{arrows,automata, positioning}
\usepackage[ruled,linesnumbered]{algorithm2e}
\usepackage{setspace}
\SetKwInOut{Input}{Input}\SetKwInOut{Output}{Output}

\begin{document}
    
\begin{frame}[t]{Minimal consistent automata ($ |\Sigma| \geq 2 $)}
    \begin{block}{}
        The plan: \textbullet  construction of a sample which provokes $ \geq 3 $ states
    \end{block}
    \begin{tikzpicture}[remember picture, overlay]
    \node [anchor=north east, inner sep=0pt, xshift=-10pt,yshift=-5pt]  at (current page.north east){%
        \begin{tikzpicture}
            [scale = 0.4, transform shape,
            -> , >= stealth,
            shorten >=0pt ,
            node distance =2.5 cm ,
            initial text = ,
            semithick ]
            \node[state, initial] (q1) {$ \varepsilon $};
            \node[state, accepting] (q2) [right = 2cm of q1]{$ 0 $};
            \path[->] 
            (q1) edge [below] node {0} (q2)
            (q1) edge [loop above] node {1} (q1)
            (q2) edge [loop above] node {1} (q2)
            (q2) edge [bend right = 15, above] node {0} (q1); 
        \end{tikzpicture}
        };
   \end{tikzpicture}
        
\end{frame} 
    
\end{document}

答案2

\documentclass{beamer}
\setbeamertemplate{itemize item}[ball]
\usepackage{tikz}
\usetikzlibrary{arrows.meta,automata, 
                positioning,
                quotes}


\begin{document}
\begin{frame}[t]{Minimal consistent automata ($ |\Sigma| \geq 2 $)}
\begin{columns}
    \begin{column}{.65\textwidth}
The plan: 
    \begin{itemize}
\item   construction of a sample which provokes $ \geq 3 $ states
    \end{itemize}
\end{column}
\begin{column}{.3\textwidth}
    \centering
    \begin{tikzpicture}[auto, scale = 0.5, transform shape,
node distance=22mm,
initial text = ,
semithick,
every edge/.style = {draw, -Stealth, shorten >=1pt}
                      ]
\node[state, initial]   (q1) {$ \varepsilon $};
\node[state, accepting,
      right=of q1]      (q2) {$0$};
%
\path   (q1)    edge[loop above, "1"]  ()
                edge["0"]               (q2)
        (q2)    edge [loop above, "1"]  ()
                edge [bend right,"0" '] (q1);
        \end{tikzpicture}
        \end{column}
    \end{columns}
\end{frame}
\end{document}

在此处输入图片描述

或者

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{arrows.meta,automata, 
                positioning,
                quotes}

\begin{document}
\begin{frame}[t]{Minimal consistent automata ($ |\Sigma| \geq 2 $)
        \hfill\begin{tikzpicture}[baseline,
auto, scale = 0.4, transform shape,
node distance=22mm,
initial text = ,
semithick,
color=black,
every edge/.style = {draw, -Stealth, shorten >=1pt}
                      ]
\node[state, initial]   (q1) {$ \varepsilon $};
\node[state, accepting,
      right=of q1]      (q2) {$0$};
%
\path   (q1)    edge[loop above, "1"]  ()
                edge["0"]               (q2)
        (q2)    edge [loop above, "1"]  ()
                edge [bend right,"0" '] (q1);
        \end{tikzpicture}
                }
The plan: 
    \begin{itemize}
\item   construction of a sample which provokes $ \geq 3 $ states
    \end{itemize}
\end{frame}
\end{document}

在此处输入图片描述

答案3

我不确定这是否正是您想要的，但您可以使用绝对定位，如TikZ/PGf 手册针对 v1.8，第 13.2.2 节，第 134 页。

我认为最简单的方法是先将节点 q2 相对于页面的右上角放置，因为它更靠近那个角落，然后将 q1 放在它的左边，而不是将 q2 放在 q1 的右边。

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{arrows,automata, positioning}
\usepackage[ruled,linesnumbered]{algorithm2e}
\usepackage{setspace}
\SetKwInOut{Input}{Input}\SetKwInOut{Output}{Output}

\begin{document}
    
\begin{frame}[t]{Minimal consistent automata ($ |\Sigma| \geq 2 $)}
    \begin{block}{}
        The plan: \textbullet\  construction of a sample which provokes $ \geq 3 $ states
    \end{block}
            \hfill\begin{tikzpicture}[remember picture, overlay,
                                scale = 0.4, transform shape,
                                -> , >= stealth,
                                shorten >=0pt ,
                                node distance =2.5 cm ,
                                initial text = ,
                                semithick ]
                                \node[state, accepting] (q2) [ below left = 3cm of current page.north east ] {$ 0 $};
                                \node[state, initial] (q1) [left = 2cm of q2] {$ \varepsilon $};
                                \path[->]
                                (q1) edge [below] node {0} (q2)
                                (q1) edge [loop above] node {1} (q1)
                                (q2) edge [loop above] node {1} (q2)
                                (q2) edge [bend right = 15, above] node {0} (q1)
                                ;
%                       };  
        \end{tikzpicture}
    
\end{frame} 

\end{document}

当然，您可以随意选择您想要的位置。

右上角的自动机图

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