在 tikz-er 中绘制带有开放圆弧的自定义边缘

Question

我试图在 tikz(-er) 中绘制一个带有开放弧的边缘，看起来像附图中的边缘：

提前谢谢您，Cuppa 叔叔

Answer 1

欢迎光临！类似这样的事吗？

\documentclass[tikz,border=3mm]{standalone}
\begin{document}
\begin{tikzpicture}[pics/arc/.style={code={
    \draw (-0.1,0.15) to[out=0,in=0,looseness=3]    (-0.1,-0.15);}}]
 \draw[very thick,blue] (1,1) -- (0,0)  pic[pos=0.5,sloped,allow upside down] {arc};
\end{tikzpicture}
\end{document}

您也可以使用例如decorations.markings或，arrows.meta但此处的解决方案不需要任何库。

附录：当然，你可以将其设置为可以传递给的样式edge。我将其称为样式sunset，你可以使用它，例如

\draw[very thick,blue] (1,1) edge[supset] (0,0);

完整示例：

\documentclass[tikz,border=3mm]{standalone}
\begin{document}
\begin{tikzpicture}[pics/supsetarc/.style={code={
    \draw (-0.1,0.15) to[out=0,in=0,looseness=3]    (-0.1,-0.15);}},
    pics/subsetarc/.style={code={
    \draw (0.1,0.15) to[out=180,in=180,looseness=3]    (0.1,-0.15);}},
    supset/.style={to path={(\tikztostart) -- 
    pic[pos=0.5,sloped,allow upside down] {supsetarc} (\tikztotarget)}},
    subset/.style={to path={(\tikztostart) -- 
    pic[pos=0.5,sloped,allow upside down] {subsetarc} (\tikztotarget)}}]
 \draw[very thick,blue] (1,1) edge[supset] (0,0);
 \draw[very thick,blue] (2,1) edge[subset] (1,0);
\end{tikzpicture}
\end{document}