Ich möchte die Elemente meines Baums zur Legende hinzufügen (Beschreibung siehe Legende). Ich habe gefundenDasUndDasAntwort, aber sie erklären nicht, wie man der Legende andere Formen hinzufügt. Ich habe in den pgfplots-Dokumenten nichts Hilfreiches gefunden. Ich bin für die Legende nicht auf pgfplots beschränkt, wenn Sie eine andere Lösung haben, werde ich sie gerne verwenden.
\documentclass{standalone}
\usepackage[dvipsnames,fixpdftex]{xcolor}
\usepackage{forest}
\usetikzlibrary{calc,shadings}
\usepackage{pgfplots}
\pgfplotsset{compat=1.15}
% Code from Christian Feuersänger
% https://tex.stackexchange.com/questions/54794/using-a-pgfplots-style-legend-in-a-plain-old-tikzpicture#54834
% argument #1: any options
\newenvironment{customlegend}[1][]{%
\begingroup
% inits/clears the lists (which might be populated from previous
% axes):
\csname pgfplots@init@cleared@structures\endcsname
\pgfplotsset{#1}%
}{%
% draws the legend:
\csname pgfplots@createlegend\endcsname
\endgroup
}%
% makes \addlegendimage available (typically only available within an
% axis environment):
\def\addlegendimage{\csname pgfplots@addlegendimage\endcsname}
%%--------------------------------
% definition to insert numbers
\pgfkeys{/pgfplots/number in legend/.style={%
/pgfplots/legend image code/.code={%
\node at (0.295,-0.0225){#1};
},%
},
}
\begin{document}
\begin{forest}
for tree={circle,draw,minimum size = 2.25em, l sep=15pt, s sep=3.0em}
[0, fill=Apricot
[1, fill=SpringGreen, shape=diamond, for tree={s sep = 3.0em}
[$\dots$, draw=none]
]
[2, fill=SpringGreen, shape=star, for tree={s sep = 3.0em}
[$\dots$, draw=none]
[8]
]
[3, fill=SpringGreen, shape=diamond
[$\dots$, draw=none]
]
[4, fill=Apricot
[$\dots$, draw=none]
]
[5, fill=SpringGreen, shape=regular polygon
[$\dots$, draw=none]
]
]
\begin{customlegend}[
legend entries={ % <= in the following there are the entries
Green circle/node here,
Red circle/node here,
White Star here,
White Diamond here,
White Polygon here
},
legend style={at={(4.5,3.5)},font=\footnotesize}] % <= to define position and font legend
% the following are the "images" and numbers in the legend
\addlegendimage{mark=ball,ball color=SpringGreen, draw=white}
\addlegendimage{mark=ball,ball color=Apricot, draw=white}
\addlegendimage{stealth-stealth,red,opacity=0.4}
\addlegendimage{number in legend=1,blue}
\addlegendimage{number in legend=0,red}
\end{customlegend}
\end{forest}
\end{document}
Antwort1
Sie können einen Stil für Formen in der Legende hinzufügen, der Ihrem aktuellen Stil ähnelt number in legend, beispielsweise genannt shape in legend. Der Stil für Formen kann so definiert werden, dass er zwei Argumente akzeptiert, die Form und die Farbe, mit .style 2 args. Dies wird mit aufgerufen shape in legend={arg1}{arg2}(sieheSo stellen Sie mit pgfplots Daten aus mehreren Filtern dar). Der Stil selbst zeichnet einen normalen Knoten, der die Form und Füllfarbe als Argumente verwendet.
MWE:
\documentclass{standalone}
\usepackage[dvipsnames]{xcolor}
\usepackage{forest}
\usetikzlibrary{calc,shadings}
\usepackage{pgfplots}
\pgfplotsset{compat=1.15}
% Code from Christian Feuersänger
% https://tex.stackexchange.com/questions/54794/using-a-pgfplots-style-legend-in-a-plain-old-tikzpicture#54834
% argument #1: any options
\newenvironment{customlegend}[1][]{%
\begingroup
% inits/clears the lists (which might be populated from previous
% axes):
\csname pgfplots@init@cleared@structures\endcsname
\pgfplotsset{#1}%
}{%
% draws the legend:
\csname pgfplots@createlegend\endcsname
\endgroup
}%
% makes \addlegendimage available (typically only available within an
% axis environment):
\def\addlegendimage{\csname pgfplots@addlegendimage\endcsname}
%%--------------------------------
% definition to insert numbers and shapes
\pgfkeys{/pgfplots/number in legend/.style={%
/pgfplots/legend image code/.code={%
\node at (0.295,-0.0225){#1};
},%
},
/pgfplots/shape in legend/.style 2 args={%
/pgfplots/legend image code/.code={%
\node[draw,#1,fill=#2,minimum width=3mm] at (0.295,-0.0225){};
},%
},
}
\begin{document}
\begin{forest}
for tree={circle,draw,minimum size = 2.25em, l sep=15pt, s sep=3.0em}
[0, fill=Apricot
[1, fill=SpringGreen, shape=diamond, for tree={s sep = 3.0em}
[$\dots$, draw=none]
]
[2, fill=SpringGreen, shape=star, for tree={s sep = 3.0em}
[$\dots$, draw=none]
[8]
]
[3, fill=SpringGreen, shape=diamond
[$\dots$, draw=none]
]
[4, fill=Apricot
[$\dots$, draw=none]
]
[5, fill=SpringGreen, shape=regular polygon
[$\dots$, draw=none]
]
]
\begin{customlegend}[
legend entries={ % <= in the following there are the entries
Green circle/node here,
Red circle/node here,
White Star here,
White Diamond here,
White Polygon here
},
legend style={at={(4.5,3.5)},font=\footnotesize}] % <= to define position and font legend
% the following are the "images" and numbers in the legend
\addlegendimage{shape in legend={circle}{SpringGreen}}
\addlegendimage{shape in legend={circle}{red}}
\addlegendimage{shape in legend={star}{white}}
\addlegendimage{shape in legend={diamond}{white}}
\addlegendimage{shape in legend={regular polygon}{white}}
\end{customlegend}
\end{forest}
\end{document}
Ergebnis:
