在文本中引用 TikZ 图形的自定义标签

Question

我使用该包绘制了下图tikz。我需要在箭头上添加标签并在文本中引用它们。我该怎么做？如果有人能就此问题提供反馈，我将不胜感激。

同时，相应的代码是

\documentclass{article}
\usepackage[utf8]{inputenc}

\usepackage{tikz}

\tikzset{every picture/.style={line width=0.75pt}}

\begin{document}
\begin{tikzpicture}[x=0.75pt,y=0.75pt,yscale=-1,xscale=1]
 
\draw    (140,145) -- (238.59,243.59) ;
\draw [shift={(240,245)}, rotate = 225] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;

\draw    (264,237) -- (377.23,98.55) ;
\draw [shift={(378.5,97)}, rotate = 489.28] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;

\draw    (404,82) .. controls (444,52) and (422.5,383) .. (554.5,244) ;
\draw [shift={(554.5,244)}, rotate = 493.52] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;


\draw (122,127) node [anchor=north west][inner sep=0.75pt]   [align=left] {$ $};

\draw (122,124) node [anchor=north west][inner sep=0.75pt]   [align=left] {$A$};

\draw (248,241) node [anchor=north west][inner sep=0.75pt]   [align=left] {$B$};

\draw (122,133) node [anchor=north west][inner sep=0.75pt]   [align=left] {$ $};

\draw (382,74) node [anchor=north west][inner sep=0.75pt]   [align=left] {$C$};

\draw (561,226) node [anchor=north west][inner sep=0.75pt]   [align=left] {$D$};

\end{tikzpicture}

\end{document}

Answer 1

我稍微整理了一下你的代码并标记了箭头，但是，我目前不确定如何在文本中引用箭头。我会看看我是否能想出解决这个问题的方法。在此之前，这是你的图形的清理版本。请注意，我已将你的坐标更改为比当前更小的坐标，因为 Ti钾Z 通常用作cm单位。这就是为什么您需要将其x=0.75pt,y=0.75pt作为参数添加到您的tikzpicture环境中。如果出于某种原因，您仍然需要这些巨大的坐标，请随意更改提供的代码。

\documentclass{article}
\usepackage{tikz}

\begin{document}
    \begin{tikzpicture}
    
        \node at (0,0) (A) {$A$};
        \node at (2,-1) (B) {$B$};
        \node at (4,2) (C) {$C$};
        \node at (8,0) (D) {$D$};
    
        \draw[->] (A) -- (B) node [midway, above, sloped] (AtoB) {$A\rightarrow B$};
        
        \draw[->] (B) -- (C) node [midway, above, sloped] (BtoC) {$B\rightarrow C$};
        
        \draw[->] (C) .. controls ++(1,1) and ++(-2,-2) .. (D) node [midway, below, sloped] (CtoD) {$C\rightarrow D$};
    
    \end{tikzpicture}
    
\end{document}

编辑

我添加了一种方法，通过将内容写入文件来引用文本中的标签aux。感谢 Henrik Bøgelund Lavstsen 提出这个想法，这线。

\documentclass{article}

\usepackage{tikz}
\usepackage{hyperref}

\makeatletter
    \newcommand{\customlabel}[2]{%
        \protected@write \@auxout {}{%
            \string \newlabel {#1}{{#2}{\thepage}{#2}{#1}{}}%
        }%
        \hypertarget{#1}{#2}%
    }
\makeatother

\begin{document}
    \begin{tikzpicture}
    
        \node at (0,0) (A) {$A$};
        \node at (2,-1) (B) {$B$};
        \node at (4,2) (C) {$C$};
        \node at (8,0) (D) {$D$};
    
        \draw[->] (A) -- (B) node [midway, above, sloped] (AtoB) {\customlabel{node:AtoB}{$A\rightarrow B$}};
        
        \draw[->] (B) -- (C) node [midway, above, sloped] (BtoC) {\customlabel{node:BtoC}{$B\rightarrow C$}};
        
        \draw[->] (C) .. controls ++(1,1) and ++(-2,-2) .. (D) node [midway, below, sloped] (CtoD) {\customlabel{node:CtoD}{$C\rightarrow D$}};
    
    \end{tikzpicture}
    
    Let's reference the arrow with the identifyer \texttt{AtoB}, shall we?\\
    Here it is: \ref{node:AtoB}
    
\end{document}