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如何连接圆形节点周围的节点？

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如何连接圆形节点周围的节点？

我想将节点连接到中心节点周围。示例如下：

在此处输入图片描述

我的方法：

\documentclass[border={10pt}]{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning,arrows}

\begin{document}
\begin{tikzpicture}
    [%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
        node distance=1cm,
        arrow/.style={->, >=stealth, very thick},
        block/.style={rectangle, fill=blue!20, text centered,
                rounded corners, minimum height=1em}
    ]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \node[block] (A) {A};
    \node[block] (B) [above=of A]  {B};
    \node[block] (K) [right=of B]  {K};
    \node[block] (C) [left=of A]   {C};
    \node[block] (D) [right=of A]  {D};
    \node[block] (E) [below=of A]  {E};
    \node[block] (F) [right=of E]  {F};
    \node[block] (G) [left=of E]  {G};

    %connect nodes
    \draw [arrow] (B.south) -- ++(0,-0) -| (A.north);
    \draw [arrow] (C.east) -- ++(0,-0) -| (A.west);
    \draw [arrow] (E.north) -- ++(0,-0) -| (A.south);
    \draw [arrow] (D.west) -- ++(0,-0) -| (A.east);
    \draw [arrow] (F.north) -- ++(0,-0) -| (A.southeast);
    \draw [arrow] (G.north) -- ++(0,-0) -| (A.west);
    \draw [arrow] (K.south) -- ++(0,-0) -| (A.east);
\end{tikzpicture}
\end{document}

输出：

在此处输入图片描述

我无法将节点放入交叉位置，在之间B - D，，D - EC - E之间B - C。

有关的：https://tex.stackexchange.com/a/269910/127048

答案1

我不会用positioning这个。放置A像你那样放置节点，然后使用极坐标放置其他节点。你可以为每个节点设置任意角度和距离。

因为看起来你想要直箭头，所以不要使用-|，这会使你的线条水平然后垂直。简化你的代码并使用\draw [arrow] (B) -- (A);

在此处输入图片描述

\documentclass{article}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}
    [%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
        arrow/.style={->, >=stealth, very thick},
        block/.style={rectangle, fill=blue!20, text centered,
                rounded corners, outer sep=0pt}
    ]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \node[block] (A) {A};
    \node[block] at (120:2) (B) {B};
    \node[block] at (60:1.5) (K) {K};
    \node[block] at (150:1.5) (C) {C};
    \node[block] at (-10:2) (D) {D};
    \node[block] at (240:2) (E) {E};
    \node[block] at (300:1.5) (F) {F};
    \node[block] at (210:1.5) (G) {G};

    %connect nodes
    \draw [arrow] (B) -- (A);
    \draw [arrow] (C.south east) -- (A.west);
    \draw [arrow] ([yshift=2mm]A.west) -- ([yshift=2mm]C.south east);
    \draw [arrow] (E) -- (A);
    \draw [arrow] (D) -- (A);
    \draw [arrow] (F) -- (A);
    \draw [arrow] (G) -- (A);
    \draw [arrow] (G) -- (C);
    \draw [arrow] (K) -- (A);
\end{tikzpicture}
\end{document}

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