我有以下 tikz 代码：
\begin{tikzpicture}[->,>=stealth',level/.style={text width=2cm, level distance = 2.8cm,level 1/.style={sibling distance=4cm},
level 2/.style={sibling distance=2.5cm},
level 3/.style={sibling distance=3.5cm}, }]
\node[text width=2.5cm] {{\em The Book Thief}\\1939}
child{ node [text width=2.5cm] {{\em The Great Train Robbery}\\1855}
child{ node[text width=2.5cm] {{\em Ross Poldark}\\1782}
child{ node[text width=2.5cm] {{\em A Tale of Two Cities}\\1755}
child{ node[text width=2.5cm] {{\em Girl with a Pearl Earring}\\1664 }}
child{ node[draw=none] {{}} }
}
child{ node[text width=2.5cm] {{\em The Revenant}\\1823} }
}
child{ node[draw=none] {{}} }
}
child{ node[text width=2.5cm] {{\em The Lion, the Witch, and the Wardrobe}\\1940}
child{ node[draw=none] {{}} }
child{ node [text width=2.5cm] {{\em The Life of Pi}\\1976}
child{ node[draw=none] {{}} }
child{ node[text width=2.5cm] {{\em Gravity's Rainbow}\\1944} } }
}
;
\end{tikzpicture}
它生成以下树：
这不是我想要的 - 我希望根节点位于页面的中心，而它的子节点位于页面的左右两侧。我的根节点目前太靠左了（对于树下较远的节点也是如此）。
如何强制节点的子节点在水平方向上距离相等？
编辑：完整上下文中的示例，正如合理要求的那样，感谢您理解整个“代码墙”。
\documentclass[12pt,a4paper]{book}
\UseRawInputEncoding
\usepackage{tikz}
\usetikzlibrary {positioning}
\usetikzlibrary{trees}
\usetikzlibrary{arrows}
\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,%
decorations.pathreplacing,decorations.pathmorphing,shapes,%
matrix,shapes.symbols}
\begin{document}
\tikzstyle{every node}=[draw=black,thick,text centered,anchor=west,text width=2.4cm]
\tikzstyle{selected}=[draw=red,fill=red!30]
\tikzstyle{optional}=[dashed,fill=gray!50]
\tikzset{
>=stealth',
invis/.style={
rectangle,
rounded corners,
% fill=black!10,
draw=white, very thick,
text width=4em,
minimum height=2em,
text centered,
on chain},
punktchain/.style={
rectangle,
rounded corners,
% fill=black!10,
draw=black, very thick,
text width=5em,
minimum height=2em,
text centered,
on chain},
line/.style={draw, thick, <-},
element/.style={
tape,
top color=white,
bottom color=blue!50!black!60!,
minimum width=4em,
draw=blue!40!black!90, very thick,
text width=5em,
minimum height=2.0em,
text centered,
on chain},
every join/.style={->, thick,shorten >=1pt},
decoration={brace},
tuborg/.style={decorate},
tubnode/.style={midway, right=7pt,draw=gray!01,ultra thin},
}
%The Books
\begin{figure}
\tikzstyle{fade}=[dashed,fill=gray!20]
\begin{center}
\begin{tikzpicture}[->,>=stealth',level/.style={text width=2cm, level distance = 2.8cm,level 1/.style={sibling distance=4cm},
level 2/.style={sibling distance=2.5cm},
level 3/.style={sibling distance=3.5cm}, }]
\node[text width=2.5cm] {{\em The Book Thief}\\1939}
child{ node [text width=2.5cm] {{\em The Great Train Robbery}\\1855}
child{ node[text width=2.5cm] {{\em Ross Poldark}\\1782}
child{ node[text width=2.5cm] {{\em A Tale of Two Cities}\\1755}
child{ node[text width=2.5cm] {{\em Girl with a Pearl Earring}\\1664 }}
child{ node[draw=none] {{}} }
}
child{ node[text width=2.5cm] {{\em The Revenant}\\1823} }
}
child{ node[draw=none] {{}} }
}
child{ node[text width=2.5cm] {{\em The Lion, the Witch, and the Wardrobe}\\1940}
child{ node[draw=none] {{}} }
child{ node [text width=2.5cm] {{\em The Life of Pi}\\1976}
child{ node[draw=none] {{}} }
child{ node[text width=2.5cm] {{\em Gravity's Rainbow}\\1944} } }
}
;
\end{tikzpicture}
\end{center}
\caption{Food}
\label{rewrite}
\end{figure}
\end{document}
答案1
你已将anchor=west以下定义放入其中——我觉得它应该是下面的北方
\tikzstyle{every node}=[draw=black,thick,text centered,anchor=north,text width=2.4cm]
结果
平均能量损失
\documentclass[12pt,a4paper]{book}
%\UseRawInputEncoding
\usepackage{tikz}
\usetikzlibrary {positioning}
\usetikzlibrary{trees}
\usetikzlibrary{arrows}
\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,%
decorations.pathreplacing,decorations.pathmorphing,shapes,%
matrix,shapes.symbols}
\begin{document}
\tikzstyle{every node}=[draw=black,thick,text centered,anchor=north,text width=2.4cm]
%The Books
\begin{figure}
\begin{center}
\begin{tikzpicture}[
->,>=stealth',
level/.style={text width=2cm, level distance = 2.8cm,
level 1/.style={sibling distance=4cm},
level 2/.style={sibling distance=2.5cm},
level 3/.style={sibling distance=3.5cm}, }]
\node[text width=2.5cm] {{\em The Book Thief}\\1939}
child{ node [text width=2.5cm] {{\em The Great Train Robbery}\\1855}
child{ node[text width=2.5cm] {{\em Ross Poldark}\\1782}
child{ node[text width=2.5cm] {{\em A Tale of Two Cities}\\1755}
child{ node[text width=2.5cm] {{\em Girl with a Pearl Earring}\\1664 }}
child{ node[draw=none] {{}} }
}
child{ node[text width=2.5cm] {{\em The Revenant}\\1823} }
}
child{ node[draw=none] {{}} }
}
child{ node[text width=2.5cm] {{\em The Lion, the Witch, and the Wardrobe}\\1940}
child{ node[draw=none] {{}} }
child{ node [text width=2.5cm] {{\em The Life of Pi}\\1976}
child{ node[draw=none] {{}} }
child{ node[text width=2.5cm] {{\em Gravity's Rainbow}\\1944} } }
}
;
\end{tikzpicture}
\end{center}
\caption{Food}
\label{rewrite}
\end{figure}
\end{document}
答案2
含forest包装：
（红线表示文字边框）
\documentclass[12pt,a4paper]{book}\usepackage{forest}
\usepackage{tikz}
\usetikzlibrary{arrows.meta,
shadows}
%---------------- show page layout. don't use in a real document!
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%
\begin{document}
\begin{figure}[ht]
\centering
\begin{forest}
for tree = {
% nodes style
draw,
fill = white, drop shadow,
text width = 6em, text badly centered,
inner sep = 2pt,
% tree with fixed angles of edges
l sep = 8mm,
calign = fixed edge angles,
calign primary angle = -30,
calign secondary angle = 37,
E/.style = {edge={shorten >=1.5em}},
}
[The Book Thief\\ 1939
[The Great Train Robbery\\ 1855
[Ross Poldark\\ 1782
[A Tale of Two Cities\\ 1755
[Girl with a Pearl Earring\\ 1664]
[, coordinate, E]
]
[The Revenant\\ 1823]
]
[,coordinate, E]
]
[{The Lion, the Witch, and the Wardrobe}\\ 1940
[,coordinate, E]
[The Life of Pi\\1976
[,coordinate, E=1.5]
[Gravity's Rainbow\\ 1944]
]
]
]
\end{forest}
\caption{Food}
\label{rewrite}
\end{figure}
\end{document}