tikzpictures 的对齐

Question

我正在尝试在用 schemabloc包绘制的这两个 tikzpictures 之间放置等效符号。这是我尝试让它工作的代码，但它给了我那个。有什么想法可以让它工作吗？

\documentclass{book}
\usepackage{schemabloc}
\begin{document}
\begin{center}
\begin{tikzpicture}
\sbEntree{e}
\sbBloc{a}{$a$}{e}
\sbRelier[$e$]{e}{a}
\sbBloc{b}{$b$}{a}
\sbRelier{a}{b}
\sbSortie{s}{b}
\sbRelier[$s$]{b}{s}
\end{tikzpicture}
$\iff$
\begin{tikzpicture}
\sbEntree{e}
\sbBloc{a}{$ab$}{e}
\sbRelier{e}{a}
\sbSortie{s}{a}
\sbRelier[$s$]{a}{s}
\end{tikzpicture}
\end{center}
\end{document}

Answer 1

最简单的方法就是把$\iff$图片放进去：

完整代码如下：

\documentclass{article}
\usepackage{schemabloc}
\begin{document}

\begin{center}
  \begin{tikzpicture}
    \sbEntree{e}
    \sbBloc{a}{$a$}{e}
    \sbRelier[$e$]{e}{a}
    \sbBloc{b}{$b$}{a}
    \sbRelier{a}{b}
    \sbSortie{s}{b}
    \sbRelier[$s$]{b}{s}
    \node at (5.5,0) {$\iff$};
  \end{tikzpicture}
  \begin{tikzpicture}
    \sbEntree{e}
    \sbBloc{a}{$ab$}{e}
    \sbRelier{e}{a}
    \sbSortie{s}{a}
    \sbRelier[$s$]{a}{s}
  \end{tikzpicture}
\end{center}

\end{document}

baseline或者，您可以在环境中设置tikzpicture：

\documentclass{article}
\usepackage{schemabloc}
\begin{document}

\begin{center}
  \begin{tikzpicture}[baseline=(current bounding box.center)]
    \sbEntree{e}
    \sbBloc{a}{$a$}{e}
    \sbRelier[$e$]{e}{a}
    \sbBloc{b}{$b$}{a}
    \sbRelier{a}{b}
    \sbSortie{s}{b}
    \sbRelier[$s$]{b}{s}
  \end{tikzpicture}
    $\iff$
  \begin{tikzpicture}[baseline=(current bounding box.center)]
    \sbEntree{e}
    \sbBloc{a}{$ab$}{e}
    \sbRelier{e}{a}
    \sbSortie{s}{a}
    \sbRelier[$s$]{a}{s}
  \end{tikzpicture}
\end{center}

\end{document}

这需要进行一些调整：