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标签的位置在 beamer slide tikz 块中更新

tag-icon • tag-icon tikz-pgf beamer diagrams labels overlays
标签的位置在 beamer slide tikz 块中更新

我在更新 Beamer 演示文稿中的 tikz 块标签时遇到了问题。到目前为止，我一直在使用\onslide代码更新块大小和位置这个答案。对于标签文本，\onslide上下移动内容（如预期）。\only标签文本是否稍微水平移动？

\documentclass[pd,xcolor={dvipsnames}]{beamer}
\usetheme{Frankfurt}
\usepackage[absolute,overlay]{textpos}

\usepackage{tikz}
\usetikzlibrary{shapes,arrows,backgrounds,positioning,patterns}
\tikzset{onslide/.code args={<#1>#2}{%
  \only<#1>{\pgfkeysalso{#2}} % \pgfkeysalso doesn't change the path
}}

\begin{document}
\begin{frame}

\centering
\tikzstyle{blocka} = [text width=3.0em, text centered, rectangle, rounded corners, fill, fill=red]
\tikzstyle{every node}=[font=\boldmath,color=white]
\tikzstyle{ann} = [draw=none,fill=white,rounded corners]

\begin{tikzpicture}
\node[blocka,
onslide=<1-2>{minimum height=10.00em},
onslide=<3-4>{minimum height=8.00em}, 
onslide=<5>{minimum height=7.67em},
onslide=<2-3>{pattern=crosshatch,pattern color=red}] (Aa1) {
\only<1>{$100$} 
\only<2-3>{ } 
\only<4>{$80$}
\only<5->{$76.7$}
%\onslide<1>{$100$}, 
%\onslide<2-3>{ }, 
%\onslide<4>{$80$},
%\onslide<5->{$76.7$};
};
\node[ann, left=0.25em of Aa1.180, color=red, fill=white] {A};

\end{tikzpicture}
\end{frame}

\end{document}

答案1

如果您希望按 Enter 键换行，则命令\only<>{}后面应跟一个%- 符号。在 LaTeX 中，换行被解释为空格。此空格位于数字前面，因此将其移出中心。

% arara: pdflatex

\documentclass{beamer}
\usetheme{Frankfurt}
\usepackage{tikz}
\usetikzlibrary{positioning,patterns}
\tikzset{%
    ,onslide/.code args={<#1>#2}{\only<#1>{\pgfkeysalso{#2}}}
    ,every node/.style={font=\boldmath,color=white}
    ,blocka/.style={text width=3.0em, text centered, rectangle, rounded corners, fill, fill=red}
    ,ann/.style={draw=none,fill=white,rounded corners}  
    }

\begin{document}
\begin{frame}
    \begin{center}
        \begin{tikzpicture}
        \node[blocka,
            onslide=<1-2>{minimum height=10.00em},
            onslide=<3-4>{minimum height=8.00em}, 
            onslide=<5>{minimum height=7.67em},
            onslide=<2-3>{pattern=crosshatch,pattern color=red}] (Aa1) {%
                \only<1>{$100$}% <= this one centeres the first slide 
                \only<2-3>{ }% <= this one centeres the fourth slide 
                \only<4>{$80$}% <= this one centeres the fifth slide
                \only<5->{$76.7$}%
                };
        \node[ann, left=0.25em of Aa1.180, color=red, fill=white] {A};          
        \end{tikzpicture}   
    \end{center}
\end{frame}
\end{document}

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