为什么不在森林里垂直排列

Question

\documentclass[border=3pt]{standalone}
\usepackage{forest}
\usetikzlibrary{shadows,arrows.meta}
\tikzset{parent/.style={align=center,text width=3cm,fill=green!20,rounded corners=2pt},
    child/.style={align=center,text width=2.8cm,fill=green!50,rounded corners=6pt},
    grandchild/.style={fill=pink!50,text width=1.5cm}
}
\begin{document}

\begin{forest}
for tree={%
    thick,
    drop shadow,
    l sep=0.6cm,
    s sep=0.8cm,
    node options={draw,font=\sffamily},
    edge={semithick,-Latex},
    where level=0{minimum height=1cm,parent}{},
    where level=1{
        minimum height=0.8cm,
        child,
        parent anchor=south west,
        tier=p,
        l sep=0.25cm,
        for descendants={%
            grandchild,
            minimum height=0.6cm,
            anchor=150,
            edge path={
                \noexpand\path[\forestoption{edge}]
                (!to tier=p.parent anchor) |-(.child anchor)\forestoption{edge label};
            },
        }
    }{},
}
[developmental %\hspace{1em}\hspace{1em} 
[two parts
    [cognition
    [cognition developmental
        ]
    ]
]
[four part
    [social
        [physical
            [action
                [language
                ]
            ]
        ]
    ]
]
]
\end{forest}

\end{document} 

Answer 1

罪魁祸首是anchor=150中的键where level=1。为什么它会移动左分支中最低的节点，而不移动其他节点？因为最低节点的高度与其他孙节点的高度不同。因此， 的anchor=150水平位置（相对于节点中心）与所有其他节点都不同，而其他所有节点的高度都相同。因此，相对位置发生了偏移。所以你可能想删除这个键。

\documentclass[border=3pt]{standalone}
\usepackage{forest}
\usetikzlibrary{shadows,arrows.meta}
\tikzset{parent/.style={align=center,text width=3cm,fill=green!20,rounded corners=2pt},
    child/.style={align=center,text width=2.8cm,fill=green!50,rounded corners=6pt},
    grandchild/.style={fill=pink!50,text width=1.5cm}
}
\begin{document}

\begin{forest}
for tree={%
    thick,
    drop shadow,
    l sep=0.6cm,
    s sep=0.8cm,
    node options={draw,font=\sffamily},
    edge={semithick,-Latex},
    where level=0{minimum height=1cm,parent}{},
    where level=1{
        minimum height=0.8cm,
        child,
        parent anchor=south west,
        tier=p,
        l sep=0.25cm,
        for descendants={%
            grandchild,
            minimum height=0.6cm,
            edge path={
                \noexpand\path[\forestoption{edge}]
                (!to tier=p.parent anchor) |-(.child anchor)\forestoption{edge label};
            },
        }
    }{},
}
[developmental 
[two parts
    [cognition
    [cognition developmental]
    ]
]
[four part
    [social
        [physical
            [action
                [language
                ]
            ]
        ]
    ]
]
]
\end{forest}
\end{document}