我有两个 TikZ 自动机，我想将它们并排放置：
但是，我更希望“开始”节点在页面上垂直对齐。如果我添加足够大的辅助线来覆盖两个图，就会自动发生这种情况：
这是下图的代码；注释掉帮助行会得到上面的图像。
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{automata}
\usetikzlibrary{positioning}
\begin{document}
\tikzstyle{negative} = [circle, minimum width=8pt, fill, inner sep=0pt]
\begin{tikzpicture}[->,shorten >=1pt,auto,node distance=1.4cm,on grid,semithick,inner sep=2pt,bend angle=25]
\draw[help lines] (-1,-1.2) grid (3,2);
\node[initial,negative] (A) {};
\node[negative] (B) [above right=of A] {};
\node[negative,accepting] (C) [below right=of B] {};
\path [every node/.style={font=\footnotesize}]
(A)
edge node {$f$} (B)
edge [swap] node {$h$} (C)
(B)
edge [bend left] node {$m$} (C)
edge [bend right,swap] node {$n$} (C)
;
\end{tikzpicture}%
\qquad%
\begin{tikzpicture}[->,shorten >=1pt,auto,node distance=1.4cm,on grid,semithick,inner sep=2pt,bend angle=45]
\draw[help lines] (-1,-1.2) grid (3,2);
\node[initial,negative] (A) {};
\node[negative] (B) [above right=of A] {};
\node[negative,accepting] (C) [below right=of B] {};
\node[negative] (D) [below right=of A] {};
\path [every node/.style={font=\footnotesize}]
(A)
edge node {$f$} (B)
edge [swap] node {$h$} (C)
edge [swap] node {$g$} (D)
(B)
edge node {$n$} (C)
(D)
edge [swap] node {$m$} (C)
;
\end{tikzpicture}
\end{document}
不借助帮助热线的情况下，我怎样才能得到较低的数字？
答案1
一种方法是使用选项baseline中的键tikzpicture来指定每张图片应该通过特定的节点名称与基线对齐（这里我使用了(A)）：
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{automata}
\usetikzlibrary{positioning}
\begin{document}
\tikzstyle{negative} = [circle, minimum width=8pt, fill, inner sep=0pt]
\begin{tikzpicture}[baseline=(A),->,shorten >=1pt,auto,node distance=1.4cm,on grid,semithick,inner sep=2pt,bend angle=25]
\node[initial,negative] (A) {};
\node[negative] (B) [above right=of A] {};
\node[negative,accepting] (C) [below right=of B] {};
\path [every node/.style={font=\footnotesize}]
(A)
edge node {$f$} (B)
edge [swap] node {$h$} (C)
(B)
edge [bend left] node {$m$} (C)
edge [bend right,swap] node {$n$} (C)
;
\end{tikzpicture}%
\qquad%
\begin{tikzpicture}[baseline=(A),->,shorten >=1pt,auto,node distance=1.4cm,on grid,semithick,inner sep=2pt,bend angle=45]
\node[initial,negative] (A) {};
\node[negative] (B) [above right=of A] {};
\node[negative,accepting] (C) [below right=of B] {};
\node[negative] (D) [below right=of A] {};
\path [every node/.style={font=\footnotesize}]
(A)
edge node {$f$} (B)
edge [swap] node {$h$} (C)
edge [swap] node {$g$} (D)
(B)
edge node {$n$} (C)
(D)
edge [swap] node {$m$} (C)
;
\end{tikzpicture}
\end{document}
