在路径命令中选择 tikz 层

Question

是否可以在路径命令中定义要绘制的 tikz 层，例如\node[on main layer] at (0,0) {foo};？将单个宏放在范围环境中有点繁琐。

Answer 1

选项behind path并in front of path允许叠加在同一个命令上绘制的节点和线。

\documentclass[tikz,border=2mm]{standalone} 

\begin{document}
\begin{tikzpicture}

\draw[thick, draw=green] (0,0) -- 
     node[pos=0.25, behind path, fill=red!30 ]{A} 
     node[pos=0.75, fill=red!30 ]{A} (2,0);

\path (1,1) node[fill=blue!20] {A} 
            node[fill=green, behind path, inner sep=3mm] {A} 
            node[fill=red, inner sep=1mm, in front of path] {};
\end{tikzpicture}
\end{document}