测了好几位数到 0.045722961425pt
,还是不能仅分到123,应该就是起点终点重合了,一般分两段曲线画更好。
\begin{tikzpicture}[scale=.7]
\begin{knot}[
consider self intersections=true,
% draft mode=crossings,
end tolerance=.045722961425pt,
flip crossing/.list={3}
]
\strand[ultra thick](0,0)
to[out=45,in=135](0.707,0)
arc(405:135:1)
to[out=45,in=135](0,0)
to[out=-45,in=225](0.707,0)
arc(-45:225:1) to[out=-45,in=225](0,0);
\end{knot}
\end{tikzpicture}
\begin{tikzpicture}[scale=.7]
\begin{knot}[
consider self intersections=true,
% draft mode=crossings,
end tolerance=.045722961425pt,
flip crossing/.list={2,4}
]
\strand[ultra thick](0,0)
to[out=45,in=135](0.707,0)
arc(405:135:1)
to[out=45,in=135](0,0)
to[out=-45,in=225](0.707,0)
arc(-45:225:1) to[out=-45,in=225](0,0);
\end{knot}
\end{tikzpicture}
问 knots 包纽结画图求助