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两张 tikz 图片和标题的位置

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两张 tikz 图片和标题的位置

使用以下代码

\documentclass[11pt]{article}
\usepackage{tikz}
\usetikzlibrary{intersections,shapes,arrows,positioning}

\begin{document}
\tikzstyle{block} = [rectangle, draw, 
text width=7em, text centered, rounded corners, minimum height=3em]

\tikzstyle{line} = [draw, -latex']

\tikzstyle{cloud} = [draw, ellipse, node distance=4.5cm,
minimum height=2.5em] 

\begin{figure} 

\begin{tikzpicture}[node distance = 3cm,auto]

\node [block] (firm) {Bob's favorite $i$};
\node [cloud, right of= firm] (C) {country $A$};
\node [cloud, below right of=firm] (C') {Alice $B$};

\path [line, thick] (firm) -- node {t}(C');
\path [line, thick] (C') -- node {t}(C);
\path [line,dashed, very thick] (firm) --  node {t+1}(C);
\end{tikzpicture}
\hspace{1cm}% NO SPACE!
\begin{tikzpicture}[node distance = 3cm,auto]

\node [block] (firm) {Bob's favorite $i$};
\node [cloud, right of= firm] (C) {country $A$};
\node [cloud, below right of=firm] (C') {Alice $B$};

\path [line, thick] (firm) -- node {t}(C');
\path [line, thick] (C') -- node {t}(C);
\path [line,dashed, very thick] (firm) --  node {t+1}(C);
\end{tikzpicture}

\caption{Bob and Alice}
\end{figure}

\end{document}

我有 在此处输入图片描述

我怎样才能使图形位于中心？

我有以下问题：

  • 如果我\centering在figure环境中使用，两张图片将会排成两行；但我想让它们并排放置。
  • 我曾尝试重新调整图片大小这个答案确实如此。但我不知道在我的案例中将缩放参数放在哪里。

答案1

由于图像相对简单，我建议重新绘制它们。在此使用新的语法进行定位和样式定义。在重新绘制时，您实际上只需要更改一些参数，这将缩小图像宽度：

\documentclass[11pt]{article}
\usepackage{tikz}
\usetikzlibrary{arrows, 
                calc, % added
                intersections, positioning, shapes}

\usepackage{showframe}

\begin{document}
\tikzset{ % changed from tikzstyle
block/.style = {rectangle, draw, rounded corners,
                text width=4em, % reduced, now text is in two lines
                minimum height=3em, align=center},
 line/.style = {draw, thick, -latex'},
cloud/.style = {draw, ellipse, minimum height=2.5em, inner xsep=0pt}
        }

\begin{figure}
\centering
    \begin{tikzpicture}[
node distance = 2cm and 1.5cm, % changed (reduced)
        auto]
\node [block] (firm) {Bob's favorite $i$};
\node [cloud, right=of firm] (C) {country $A$}; % new syntax according to positioning library
\node [cloud, below=of $(firm)!0.5!(C)$] (C') {Alice $B$}; % use of calc library

\path [line] (firm) -- node {t}(C');
\path [line] (C') -- node {t}(C);
\path [line,dashed, very thick] (firm) --  node {t+1} (C);
    \end{tikzpicture}
\hfil % for distance between images
    \begin{tikzpicture}[
node distance = 2cm and 1.5cm,
        auto]
\node [block] (firm) {Bob's favorite $i$};
\node [cloud, right=of firm] (C) {country $A$};
\node [cloud, below=of $(firm)!0.5!(C)$] (C') {Alice $B$};

\path [line] (firm) -- node {t}(C');
\path [line] (C') -- node {t}(C);
\path [line,dashed, very thick] (firm) --  node {t+1} (C);
    \end{tikzpicture}
    \caption{Bob and Alice}
\end{figure}

\end{document}

在此处输入图片描述

的默认文本宽度article非常窄。期刊或会议的边距通常要窄得多，小于 25 毫米。在这种情况下，您可以使用宽block，例如在 MWE (7em) 中所使用的。

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