向矩阵树添加标签

Question

我想在以下树的叶子右侧添加标签。我尝试将标签添加到连接箭头，但它们与节点上的标签重叠。

\documentclass{standalone}  
\usepackage{tikz}
\usetikzlibrary{matrix}
\begin{document}
\begin{tikzpicture}[>=stealth,sloped] 
\matrix (tree) [
  matrix of nodes,
  minimum size=1cm,
  column sep=2cm,
  row sep=.5cm,
]
{
      &   & D \\
      & B &   \\
  A &   & E \\
      & C &   \\
      &   & F \\
};
\draw[->] (tree-3-1) -- (tree-2-2) ;
\draw[->] (tree-3-1) -- (tree-4-2) ;
\draw[->] (tree-2-2) -- (tree-1-3) ;
\draw[->] (tree-2-2) -- (tree-3-3) ;
\draw[->] (tree-4-2) -- (tree-3-3) ;
\draw[->] (tree-4-2) -- (tree-5-3) ;
\end{tikzpicture}
\end{document}

这是图片

Answer 1

您可以使用例如node[right=5mm] {text}将节点向右移动。

\documentclass{standalone}  
\usepackage{tikz}
\usetikzlibrary{matrix}
\begin{document}
\begin{tikzpicture}[>=stealth,sloped] 
\matrix (tree) [
  matrix of nodes,
  minimum size=1cm,
  column sep=2cm,
  row sep=.5cm,
]
{
      &   & D \\
      &  B &   \\
  A &   & E \\
      & C &   \\
      &   & F \\
};
\draw[->] (tree-3-1) -- (tree-2-2) node[right=5mm] {foo};
\draw[->] (tree-3-1) node[right=5mm] {bar} -- (tree-4-2) ;
\draw[->] (tree-2-2) -- (tree-1-3) ;
\draw[->] (tree-2-2) -- (tree-3-3) ;
\draw[->] (tree-4-2) -- (tree-3-3) ;
\draw[->] (tree-4-2) -- (tree-5-3) ;
\end{tikzpicture}
\end{document}