我在 beamer 中绘制了以下右扩展树形图，但其分支相互重叠。我尝试了兄弟距离选项，但没有得到所需的结果。有人知道如何正确地做到这一点吗？
我的 MWE 是：
\begin{frame}
\begin{tikzpicture}[->]
\node {Start O}
[grow=right]
child{node{O}
[grow=right]
child{node{O}
[grow=right]
child{node{O}
[grow=right]
child{node[anchor=west]{O dead End}}
child{node[anchor=west]{O Success Node}}
}
child{node{O}
[grow=right]
child{node{O}
[grow=right]
child{node{O}
[grow=right]
child{node{dead End}}
}}}}
child{node{O}
[grow=right]
child{node[anchor=west]{O dead End}}
child{node[anchor=west]{O dead End}}
child{node[anchor=west]{O dead End}}
}
}%-----------------------------
child{node{O}}
[grow = right]
child{node[anchor=west]{dead End}}
child{node{O}}
[grow = right]
child{node{O}
[grow = right]
child{node{O}
[grow = right]
child{node[anchor=west]{dead End}}}
child{node[anchor=west]{dead End}}
}
child{node[anchor=west]{dead End}}
;
\end{tikzpicture}
\end{frame}
答案1
据我了解，您的树O是节点，其他文本是标签。使用纯文本绘制的树tikz是：
\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{frame}
\centering
\begin{tikzpicture}[->,
every node/.append style = {inner sep=1pt, anchor=west},
every label/.append style = {inner sep=0pt, font=\small},
grow=right,
level distance=11mm,
level 1/.style={sibling distance=28mm},
level 2/.style={sibling distance=14mm},
level 3/.style={sibling distance= 6mm},
level 4/.style={sibling distance= 4mm},
]
\node[label=left:Start, anchor=east] {O}
% lover part
child{node{O}
child{node{O}
child{node{O}
child{node[label=right:Dead End] {O}}
child{node[label={[font=\bfseries]right:Success Node}] {O}}
}
child{node{O}
child{node{O}
child{node{O}
child{node[label=right:Dead End] {O}}
}
}
}
}
child{node{O}
child{node[label=right:Dead End] {O}}
child{node[label=right:Dead End] {O}}
child{node[label=right:Dead End] {O}}
}
}
% upper part
child{node{O}
child{node[label=right:Dead End] {O}}
child{node{O}
child{node{O}
child{node{O}
child{node[label=right:Dead End] {O}}
}
child{node[label=right:Dead End] {O}}
}
child{node[label=right:Dead End] {O}}
}
}
;
\end{tikzpicture}
\end{frame}
\end{document}
并且forest，我假设，节点是圆圈：
\documentclass{beamer}
\usepackage{forest}
\begin{document}
\begin{frame}
\centering
\begin{forest}
for tree={
% style of tree nodes
circle, draw, inner sep=3pt,
every label/.append style = {inner sep=0pt, font=\small},
%
grow=east,
%child anchor=west, parent anchor=east,
s sep = 2mm, % sibling distance
where level={1}{s sep=6mm}{},
where level={2}{s sep=3mm}{},
l sep = 9mm, % level distance
edge = {-latex},
}
[ , label=left:Start
[
[
[
[
[
[ , label=right:Dead End]
]
]
]
[
[ , label={[font=\bfseries]right:Sucess Node}]
[ , label=right:Dead End]
]
]
[
[ , label=right:Dead End]
[ , label=right:Dead End]
[ , label=right:Dead End]
]
]
[
[
[ , label=right:Dead End]
[
[ , label=right:Dead End]
[
[ , label=right:Dead End]
]
]
]
[ , label=right:Dead End]
]
]
\end{forest}
\end{frame}
\end{document}
答案2
代码无需太多改动，您可以在 中定义一个sibling distanceper ，以避免分支重叠。此外，您还可以在相同的选项中定义树的全局。leveltikz optionsgrow
输出：
代码：
\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{frame}
\begin{tikzpicture}[->,
grow=right,
level 1/.style={sibling distance=2.75cm,},
level 2/.style={sibling distance=1.45cm,},
level 3/.style={sibling distance=0.6cm,},
level 4/.style={sibling distance=0.4cm,},
]
\node {Start O}
child{node{O}
child{node{O}
child{node{O}
child{node[anchor=west]{O dead End}}
child{node[anchor=west]{O Success Node}}
}
child{node{O}
child{node{O}
child{node{O}
child{node{dead End}}
}}}}
child{node{O}
child{node[anchor=west]{O dead End}}
child{node[anchor=west]{O dead End}}
child{node[anchor=west]{O dead End}}
}
}%-----------------------------
child{node{O}
child{node[anchor=west]{dead End}}
child{node{O}
child{node{O}
child{node{O}
child{node[anchor=west]{dead End}}}
child{node[anchor=west]{dead End}}}
child{node[anchor=west]{dead End}}}
}
;
\end{tikzpicture}
\end{frame}
\end{document}
如果这对你来说不是问题，我建议你使用forest包，它基于tikz包，而不是单纯基于tikz包。
希望树枝没有错误。
输出：
代码：
\documentclass{beamer}
\usepackage{forest}
\begin{document}
\begin{frame}
\begin{forest}
for tree={% style of tree nodes
grow=east,
anchor=west, parent anchor=east,
s sep = 2mm, % sibling distance
l sep = 8mm, % level distance
edge path={
\noexpand\path[\forestoption{edge},->, >={latex}]
(!u.parent anchor) -- (.child anchor)
\forestoption{edge label}; %edge/node connection
},
}
[Start O
[O
[O
[O
[O
[O
[dead End]
]
]
]
[O
[O Sucess Node]
[O dead End]
]
]
[O
[O dead End]
[O dead End]
[O dead End]
]
]
[O
[O
[dead End]
[O
[dead End]
[O
[dead End]
]
]
]
[dead End]
]
]
\end{forest}
\end{frame}
\end{document}
有很多方法可以定制您的树forest，请参阅文档。
提高可读性的一个最小变化是改变边缘路径，例如：
代码：
\documentclass{beamer}
\usepackage{forest}
\begin{document}
\begin{frame}
\begin{forest}
for tree={% style of tree nodes
grow=east,
anchor=west, parent anchor=east,
s sep = 2mm, % sibling distance
l sep = 8mm, % level distance
edge path={
\noexpand\path[\forestoption{edge},->, >={latex}]
(!u.parent anchor) -- +(5pt,0pt) |- (.child anchor)
\forestoption{edge label}; %edge/node connection
},
}
[Start O
[O
[O
[O
[O
[O
[dead End]
]
]
]
[O
[O Sucess Node]
[O dead End]
]
]
[O
[O dead End]
[O dead End]
[O dead End]
]
]
[O
[O
[dead End]
[O
[dead End]
[O
[dead End]
]
]
]
[dead End]
]
]
\end{forest}
\end{frame}
\end{document}