我应用了以下代码来绘制特征图。我想向图例添加替代符号（未填充的角度），如图所示。你能帮忙吗
\documentclass[border=10pt,tikz,multi]{standalone}
\usetikzlibrary{angles,shadows.blur,positioning,backgrounds}
\usepackage{forest}
\forestset{
declare count register=disjuncts from,
disjuncts from'=0,
declare count register=concrete from,
concrete from'=2,
concrete colour/.code={\colorlet{concretecol}{#1}},
abstract colour/.code={\colorlet{abstractcol}{#1}},
draw colour/.code={\colorlet{drawcol}{#1}},
concrete colour=gray,
abstract colour=white,
draw colour=black,
/tikz/mandatory/.style={circle, fill=drawcol, draw=drawcol},
/tikz/optional/.style={circle, draw=drawcol, fill=white},
/tikz/concrete/.style={fill=concretecol, draw=drawcol},
/tikz/abstract/.style={fill=abstractcol, draw=drawcol},
/tikz/or/.style={},
mandatory/.style={edge label={node [mandatory] {}}},
optional/.style={edge label={node [optional] {}}},
or/.style={for first={disjunct}},
disjunct/.style={
tikz+={\path (.parent) coordinate (A) -- (!u.children) coordinate (B) -- (!ul.parent) coordinate (C) pic [fill=drawcol] {angle};}
},
disjunction tree/.style={
where={isodd(n_children())}{
for n={int((n_children()+1)/2)}{calign with current},
}{
calign=midpoint,
},
before typesetting nodes={
for nodewalk={
filter/.wrap pgfmath arg={{level>=##1}{n_children()>1}}{(disjuncts_from)}
}{
or,
},
where={level()>=(concrete_from)}{
concrete,
}{
abstract,
},
tikz+={
[font=\sffamily]
\node (l) [anchor=north west, xshift=10pt] at (current bounding box.north east) {Legend};
\foreach \i/\j [remember=\i as \k (initially l)] in {mandatory/Mandatory,optional/Optional,or/Or,abstract/Abstract,concrete/Concrete}
{
\node (\i) [below=20pt of \k.north, anchor=north, text centered, \i, minimum width=5pt,] {};
\node (\j) [right=15pt of \i.center -| mandatory.west, anchor=west] {\j};
};
\draw [drawcol] (or.south west) coordinate (A) -- (or.north) coordinate (B) -- (or.south east) coordinate (C) pic [fill=drawcol, angle radius=5pt] {angle};
\foreach \i in {mandatory,optional} \draw [darkgray] (\i.north east) -- +(45:5pt);
\node (c) [below=0pt of Concrete.south] {};
\scoped[on background layer]{\node [draw, fill=white, blur shadow, fit=(l) (Mandatory) (Optional) (Or) (Abstract) (Concrete) (c), rounded corners] {};}
},
},
for tree={
parent anchor=children,
child anchor=parent,
l'+=10mm,
blur shadow,
rounded corners,
text height=2ex,
text depth=.5ex,
font=\sffamily,
},
},
}
\begin{document}
\begin{forest}% addaswyd o gôd Salim Bou: https://tex.stackexchange.com/a/335782/
disjunction tree,
disjuncts from'=1,
concrete from'=1,
concrete colour=blue!85!cyan!40,
abstract colour=blue!85!cyan!15,
draw colour=darkgray,
[Emergency Response System
[User interface, mandatory]
[Inform emergency, mandatory
[Inform Earthquake, abstract colour=blue!85!cyan!15]
[Inform flood]
]
[Display neighbourhood, mandatory
[Map
[Display danger zone]
[Display safe zone]
[Display path to safe zone]
]
[Textual direction]
]
[Shortcut calls, optional
[Cops]
[Ambulance]
[Fireman]
]
]
\end{forest}
\end{document}
答案1
我对森林一无所知，但我知道如何使用保存箱和 tikz。
\documentclass[border=10pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{angles,shadows.blur,positioning,backgrounds,arrows.meta}
\usepackage{forest}
\forestset{
declare count register=disjuncts from,
disjuncts from'=0,
declare count register=concrete from,
concrete from'=2,
concrete colour/.code={\colorlet{concretecol}{#1}},
abstract colour/.code={\colorlet{abstractcol}{#1}},
draw colour/.code={\colorlet{drawcol}{#1}},
concrete colour=gray,
abstract colour=white,
draw colour=black,
/tikz/mandatory/.style={circle, fill=drawcol, draw=drawcol},
/tikz/optional/.style={circle, draw=drawcol, fill=white},
/tikz/concrete/.style={fill=concretecol, draw=drawcol},
/tikz/abstract/.style={fill=abstractcol, draw=drawcol},
/tikz/or/.style={},
mandatory/.style={edge label={node [mandatory] {}}},
optional/.style={edge label={node [optional] {}}},
or/.style={for first={disjunct}},
disjunct/.style={
tikz+={\path (.parent) coordinate (A) -- (!u.children) coordinate (B) -- (!ul.parent) coordinate (C) pic [fill=drawcol] {angle};}
},
disjunction tree/.style={
where={isodd(n_children())}{
for n={int((n_children()+1)/2)}{calign with current},
}{
calign=midpoint,
},
before typesetting nodes={
for nodewalk={
filter/.wrap pgfmath arg={{level>=##1}{n_children()>1}}{(disjuncts_from)}
}{
or,
},
where={level()>=(concrete_from)}{
concrete,
}{
abstract,
},
%
},
for tree={
parent anchor=children,
child anchor=parent,
l'+=10mm,
blur shadow,
rounded corners,
text height=2ex,
text depth=.5ex,
font=\sffamily,
},
},
}
\begin{document}
\bgroup
\sbox0{%
\begin{forest}% addaswyd o gôd Salim Bou: https://tex.stackexchange.com/a/335782/
disjunction tree,
disjuncts from'=1,
concrete from'=1,
concrete colour=blue!85!cyan!40,
abstract colour=blue!85!cyan!15,
draw colour=darkgray,
[Emergency Response System
[User interface, mandatory]
[Inform emergency, mandatory
[Inform Earthquake, abstract colour=blue!85!cyan!15]
[Inform flood]
]
[Display neighbourhood, mandatory
[Map
[Display danger zone]
[Display safe zone]
[Display path to safe zone]
]
[Textual direction]
]
[Shortcut calls, optional
[Cops]
[Ambulance]
[Fireman]
]
]
\end{forest}}%
%
\sbox1{\begin{tabular}{clclcl}
\tikz{\draw (0,0) node[circle,fill=black,inner sep=.5ex] (A) {} (A.north) -- (0,2ex);} & Mandatory &
\tikz{\draw (0,0) coordinate(A) -- (2ex,2ex) coordinate(B) -- (4ex,0) coordinate(C)
pic[draw, angle radius=1.5ex] {angle=A--B--C};} & Alternative &
\tikz{\draw[dashed,-latex] (0,0) (0,1ex) -- (2em,1ex);} & Requires \\
\tikz{\draw (0,0) node[circle,draw,inner sep=.5ex] (A) {} (A.north) -- (0,2ex);} & Optional &
\tikz{\draw (0,0) coordinate(A) -- (2ex,2ex) coordinate(B) -- (4ex,0) coordinate(C)
pic[fill=black, angle radius=1.5ex] {angle=A--B--C};} & Or &
\tikz{\draw[dashed,latex-latex] (0,0) (0,1ex) -- (2em,1ex);} & Excludes \\
\end{tabular}}%
%
\begin{tikzpicture}
\node (forest){\usebox0};
\node[below=2ex,draw,rounded corners] at (forest.south) {\usebox1};
\end{tikzpicture}
\egroup
\end{document}
