減少森林中節點標籤和連接線之間的距離

Question

我使用下面的程式碼來產生如圖中左邊的兩棵樹。

\documentclass{minimal}

\usepackage{forest}

\forestset{
sn edges/.style={for tree={parent anchor=south, child anchor=north,align=center,base=bottom,where n children=0{tier=word}{}}}, 
background tree/.style={for tree={text opacity=0.2,draw opacity=0.2,edge={draw opacity=0.2}}}
}


\begin{document}

\begin{forest}
sn edges
[S
  [NP [er\\he] ]
  [NP
    [Det [das\\the] ]
    [N [Buch\\book] ] 
  ]
  [NP
    [Det [der\\the] ]
    [N [Frau\\woman] ] 
  ]
  [V [gibt\\gives] ]
]
\end{forest}

\end{document}

我想減少這個距離，使其看起來像右側的樹（用 繪製tikz-qtree）。有沒有辦法做到這一點（並將其設為預設值）？

Answer 1

你想要類似的東西嗎

l sep-=<some length>

這將減少層之間的距離<some length>？

下面分別比較了預設值與1em和的減少2em：

\documentclass{standalone}

\usepackage{forest}

\forestset{
sn edges/.style={for tree={parent anchor=south, child anchor=north,align=center,base=bottom,where n children=0{tier=word}{}}},
background tree/.style={for tree={text opacity=0.2,draw opacity=0.2,edge={draw opacity=0.2}}}
}


\begin{document}

\begin{forest}
sn edges
[S
  [NP [er\\he] ]
  [NP
    [Det [das\\the] ]
    [N [Buch\\book] ]
  ]
  [NP
    [Det [der\\the] ]
    [N [Frau\\woman] ]
  ]
  [V [gibt\\gives] ]
]
\end{forest}
\begin{forest}
  for tree={
    l sep-=1em,
  },
sn edges
[S
  [NP [er\\he] ]
  [NP
    [Det [das\\the] ]
    [N [Buch\\book] ]
  ]
  [NP
    [Det [der\\the] ]
    [N [Frau\\woman] ]
  ]
  [V [gibt\\gives] ]
]
\end{forest}
\begin{forest}
  for tree={
    l sep-=2em,
  },
sn edges
[S
  [NP [er\\he] ]
  [NP
    [Det [das\\the] ]
    [N [Buch\\book] ]
  ]
  [NP
    [Det [der\\the] ]
    [N [Frau\\woman] ]
  ]
  [V [gibt\\gives] ]
]
\end{forest}

\end{document}