我不知道如何正确对齐下面的树。树本身不在页面中央，树枝也没有垂直或水平对齐。
我希望节点能够在某种不可见的网格上对齐，并且整个节点能够在一个页面中居中。
编辑以澄清：
- 粉色圆圈表示树应该位于中心。
- 绿线显示这些框没有水平对齐。
- 蓝线区域：这些区域试图显示节点应垂直对齐的不可见网格。换句话说，蓝线之间的空间应该始终相同。例如，现在，第 8 级节点彼此不对齐。此外，第 7 级节点和第 8 级节点之间的空间与第 8 级节点和第 9 级节点之间的空间不同。理想情况下，所有这些空间应始终相同。我曾尝试手动调整各个级别之间的空间（在这里增加 1 厘米或在那里增加 4.5 厘米），但不起作用
\documentclass{book}
\usepackage[linguistics,edges]{forest}
\begin{document}
\begin{forest}
for tree={s sep=8mm,
inner sep=4,
l=0,
forked edge,
edge={->,>=latex}}
[Priest,rounded rectangle,draw
[Matador\\ \textit{\small 1st Level},rounded rectangle,draw
[\textbf{Green Branch},rectangle,draw
[Junior Junior\\ \textit{\small 2nd Level},rounded rectangle,draw,
[Chief Eater Booster\\ \textit{\small 8th Level},rounded rectangle,draw,l=130pt
[High Chief\\ \textit{\small 10th Level},rounded rectangle,draw,l=2cm
[Grand Cookie Horsey\\ \textit{\small 12th Level},rounded rectangle,draw,l=2cm
[Obvious Receptacle\\ \textit{\small 15th Level},rounded rectangle,draw,]]]]]]
[\textbf{Ecclesiastical Branch},rectangle,draw,calign with current
[Junior Driver\\ \textit{\small 2nd Level},rounded rectangle,draw,
[Library Leader\\ \textit{\small 8th Level},rounded rectangle,draw,l=4.5cm
[Hotel Commandant\\ \textit{\small 10th Level},rounded rectangle,draw,l=2cm
[Senior Ant-eater\\ \textit{\small 12th Level},rounded rectangle,draw,l=2cm
[Administrative Daddy\\ \textit{\small 15th Level},rounded rectangle,draw,
[Mommy\\ \textit{\small 16th-17th Level},rounded rectangle,draw,l=1cm
[Grand Lord\\ \textit{\small 19th-20th Level},rounded rectangle,draw,l=1cm
[Grand Grandiose\\ \textit{\small 20th Level \& up},rounded rectangle,draw]]]]]]]]]
[\textbf{Military Branch},rectangle,draw
[Walker\\ \textit{\small 2nd Level},rounded rectangle,draw,
[Senior Walker\\ \textit{\small 5th Level},rounded rectangle,draw,
[Ranking Interviewer\\ \textit{\small 7th Level},rounded rectangle,draw,
[Astronaut\\ \textit{\small 9th Level},rounded rectangle,draw,l=2.3cm
[Doctor\\ \textit{\small 11th Level},rounded rectangle,draw,l=2cm
[Great Doctor\\ \textit{\small 16th Level},rounded rectangle,draw,l=3.5cm]]]]]]]
]
]
\end{forest}
\end{document}
答案1
如果您说例如tier=l2多个节点，那么 Forest 将会对齐这些节点（如果可能）。要将树置于页面中央，您必须在环境之外执行某些操作forest，例如使用center环境。但是，空间非常宝贵，因此我\centering在这里使用 以避免额外的垂直空间。我还添加了geometry默认值，使其更合理一些，并减少了分离和inner sep以容纳所有内容。我已经习惯fit=band确保事物不会在列方面重叠，并使用一些空节点来指定缺失的层。如果您不需要在空间上表示缺失的层，则可以删除其中一些并将其放回inner sep。4如果您的文本高度大于geometry的默认值（或者如果您使用的是 A4），您也可以这样做。
我添加了showframe显示文本块和边距等的选项。显然，您应该在实际文档中删除它！
\documentclass{book}
\usepackage[showframe]{geometry}
\usepackage[linguistics,edges]{forest}
\begin{document}
\begingroup
\centering
\begin{forest}
for tree={
l'=0pt,
edge={->,>=latex},
draw,
fit=band,
inner sep=2,
},
nice empty nodes,
delay={
where content={}{edge=-}{},
},
where level=2{}{rounded rectangle},
forked edges,
[Priest
[Matador\\\textit{\small 1st Level}, tier=l1
[\textbf{Green Branch},rounded corners=0pt
[Junior Junior\\\textit{\small 2nd Level}, tier=l2,
[Chief Eater Booster\\\textit{\small 8th Level}, tier=l8,
[High Chief\\\textit{\small 10th Level}, tier=l10,
[Grand Cookie Horsey\\\textit{\small 12th Level}, tier=l12,
[Obvious Receptacle\\\textit{\small 15th Level}, tier=l15,]]]]]]
[\textbf{Ecclesiastical Branch},rectangle,calign with current
[Junior Driver\\\textit{\small 2nd Level}, tier=l2,
[Library Leader\\\textit{\small 8th Level}, tier=l8,
[Hotel Commandant\\\textit{\small 10th Level}, tier=l10,
[Senior Ant-eater\\\textit{\small 12th Level}, tier=l12,
[Administrative Daddy\\\textit{\small 15th Level}, tier=l15,
[Mommy\\\textit{\small 16th-17th Level}, tier=l17,
[, tier=l18 [Grand Lord\\\textit{\small 19th-20th Level}, tier=l19
[Grand Grandiose\\\textit{\small 20th Level \& up}, tier=l20]]]]]]]]]]
[\textbf{Military Branch},rectangle
[Walker\\\textit{\small 2nd Level}, tier=l2,
[, tier=l3 [, tier=l4 [Senior Walker\\\textit{\small 5th Level}, tier=l5,
[, tier=l6 [Ranking Interviewer\\\textit{\small 7th Level}, tier=l7,
[, tier=l8
[Astronaut\\\textit{\small 9th Level}, tier=l9,
[,tier=l10 [Doctor\\\textit{\small 11th Level}, tier=l11,
[,tier=l12 [,tier=l13 [,tier=l14 [,tier=l15 [Great Doctor\\\textit{\small 16th Level}, tier=l16,]]]]]]]]]]]]]]]]
]
]
\end{forest}
\par
\endgroup
\end{document}
