如何为分支图的某些区域着色

Question

你知道我该如何重现这张图片中的分支图吗？我猜它是用tikz或制作的pst-tree，但我不知道怎么做，尤其是如何得到那些彩色区域。

照片中的树就是从这里拍摄的推介会

MWE（产生几乎相同的树，但没有彩色区域）：

\documentclass[11pt]{standalone}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{tikz}
\usetikzlibrary{matrix,arrows,decorations.pathmorphing,trees}


\begin{document}

\vspace{5cm}
\tikzstyle{level 1}=[level distance=3cm, sibling distance=3cm,very thick]
\tikzstyle{level 2}=[level distance=3cm, sibling distance=2cm]
\tikzstyle{level 3}=[level distance=3cm, sibling distance=1.5cm]

\tikzstyle{empty node} = [circle,draw,minimum width=1pt,fill=white,inner sep=2pt]
\tikzstyle{end} = [circle,draw,inner sep=1.2,fill=black, minimum width=2pt]

\begin{tikzpicture}[grow=right, sloped]
\node[end] {}
child[loosely dotted] {
    node[end] {}        
    child{
        node[end]{}
        child{
            node[end] {}
        }
        child{
            node[end] {}
        }
    }
    child {
        node[end] {}
            child{
            node[end] {}
            }
            child{
            node[end] {}
            }
        }
}
child[loosely dotted]{
    node[end]{}
    child{
        node[end] {}
    }
    child{
        node[end] {}
    }
}
child {
    node[empty node,label=above:{\Large{\textit{i}$_c$}}] {}
    child[loosely dashed] {
        node[end] {}
        child{
            node[end]{}
            child{
                node[end]{}    
            }
            child{
                node[end]{}    
            }
        }
    }
    child[dashed]{
        node[end] {}
        child{
        node[end]{}
        child{
        node[end]{}    
    }
        child{
        node[end]{}    
    }
    }
    }
}
;
\end{tikzpicture}
\end{document}

提前非常感谢！！！

Answer 1

您的代码不会生成具有所示结构的树，至少在我编译它时不会，并且不清楚如何将阴影应用于您的树。因此，在将其翻译成 Forest 后，我​​对其进行了调整以生成图示结构。该backgrounds库用于阴影。您在代码中列出的大多数软件包和库都是令人震惊的。

\documentclass[border=10pt,11pt]{standalone}
\usepackage{forest}
\usetikzlibrary{backgrounds}
\begin{document}
\tikzset{% \tikzstyle is deprecated
  empty node/.style = {circle,draw,minimum width=1pt,fill=white,inner sep=2pt},
  end/.style = {circle,draw,inner sep=1.2,fill=black, minimum width=2pt,},
}%
\begin{forest}
  for tree={
    grow=0,
    edge+={loosely dotted, very thick},
    end,
    s sep'=5mm,
    fit=band,
  },
  where level<=1{calign=fixed edge angles}{},
  before drawing tree={
    tempdima/.max={x}{tree},
    where n children=0{x/.register=tempdima}{},
  }
  [
    [
      [[[][]][[][]]]
      [[[][]][[][]]]
    ]
    [
      [
        [[][]][[][]]
      ]
      [
        [[][]][[][]]
      ]
      [, for current and ancestors={edge+={solid}}, empty node, very thick, label=above:{\Large{\textit{i}$_c$}}
        [, for tree={edge+={loosely dashed}} [[][]]]
        [, for tree={edge+={dashed}} [[][]]]
      ]
    ]
  ]
  \begin{scope}[on background layer]
    \begin{scope}[transparency group, opacity=.25]
      \draw [blue, line width=30pt, line cap=round] (!r) -- (!rll);
      \node [fit=(!rlll) (!rll1) (!rlllll) (!rll111), fill=green, rounded corners] {};
      \path [fill, draw, magenta, line width=20pt, rounded corners] (!r1.center) -- (!r111.center) -- (!rF.center) -- (!rl2L.center) -- (!rl2l.center) -- (!rl2.center) -- cycle;
    \end{scope}
  \end{scope}
\end{forest}
\end{document}