使用 graph 命令在网格上分布 TikZ 节点

Question

我希望使用命令将以下 10mm 节点拟合到 10mm 网格中graph。但厚度却增加了（我希望 TikZ 忽略它）。

\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{graphs,positioning}
\begin{document}
\begin{tikzpicture}[
  every node/.style = {
    circle,
    very thick,
    inner sep = 0,
    minimum size = 10mm,
    draw = black,
  },
]
\graph[grow right sep=10mm]{
  1 -> 2 -> 3 -> 4
};
\draw[help lines] (-0.5,-1.5) grid (8,1.5);
\end{tikzpicture}
\end{document}

我是否应该将节点尺寸设为 10 毫米 - “非常厚”？听起来有点疯狂。

Answer 1

只需添加outer sep=0pt到节点样式：

\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{graphs,positioning}
\begin{document}
    \begin{tikzpicture}[
every node/.style = {circle, draw, very thick,
                     inner sep = 0, outer sep=0pt,
                     minimum size = 10mm},
                        ]
\graph[grow right sep=10mm]{
  1 -> 2 -> 3 -> 4
};
\draw[help lines] (-0.5,-1.5) grid (8,1.5);
    \end{tikzpicture}
\end{document}