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如何在{森林}树中指定锚点样式？

tag-icon • tag-icon forest
如何在{森林}树中指定锚点样式？

我正在使用 {forest} 制作一棵简单的树，我希望所有节点的边缘都是比正常尺寸更大的实心箭头（向南方向）（这样我创建的图像在缩小时可以很好地调整大小）。我已经指定了箭头，但遇到了困难...我如何将小箭头转换为漂亮的大实心箭头？

\begin{forest} 
for tree={edge=->}
[{\textbf{Footbridge Dilemma}}, circle, draw, text width = 5em, text centered
  [{\textbf{Push \\Man}}, circle, draw, text width = 5em, text centered
     [{\textbf{Man \\Dies}}, circle, draw, text width = 5em, text centered
       [{\textbf{Workmen \\Saved}}, circle, draw, text width = 5em, text centered]
     ]
  ]
  [{\textbf{Don't Push}}, circle, draw, text width = 5em, text centered
     [{\textbf{Man \\Lives}}, circle, draw, text width = 5em, text centered
       [{\textbf{Workmen Die}}, circle, draw, text width = 5em, text centered]
     ]
  ]
]
\end{forest}

答案1

可以line width给edge参数添加一个参数：

\documentclass{article}
\usepackage{forest}

\begin{document}

\begin{forest} 
for tree={edge={->,line width=4pt}}
[{\textbf{Footbridge Dilemma}}, circle, draw, text width = 5em, text centered
  [{\textbf{Push \\Man}}, circle, draw, text width = 5em, text centered
     [{\textbf{Man \\Dies}}, circle, draw, text width = 5em, text centered
       [{\textbf{Workmen \\Saved}}, circle, draw, text width = 5em, text centered]
     ]
  ]
  [{\textbf{Don't Push}}, circle, draw, text width = 5em, text centered
     [{\textbf{Man \\Lives}}, circle, draw, text width = 5em, text centered
       [{\textbf{Workmen Die}}, circle, draw, text width = 5em, text centered]
     ]
  ]
]
\end{forest}
\end{document}

代码输出

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