選擇路徑命令內的 tikz 圖層

Question

是否可以定義要在路徑命令內繪製的 tikz 層，例如\node[on main layer] at (0,0) {foo};？將單一巨集放入作用域環境中有點乏味。

Answer 1

選項behind path和in front of path允許疊加在同一命令上繪製的節點和線。

\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}