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tikz - 有自动节点距离，但有自动箭头距离吗？

tag-icon • tag-icon tikz-pgf
tikz - 有自动节点距离，但有自动箭头距离吗？

我正在处理一堆短正合序列，我认为当箭头长度约为 1 厘米时，它们看起来最好。如果需要，它只留出足够的空间在箭头上贴标签，但又不会太多，如果我选择不贴标签，它看起来会完全是空的。当节点有简单的标签时，设置节点距离就很好了

\begin{tikzpicture}[node distance = 1.25cm, auto]
  \node (01) {$0$};
  \node (A) [right of=01] {$A$};
  \node (B) [right of=A] {$B$};
  \node (C) [right of=B] {$C$};
  \node (02) [right of=C] {$0$};
  \draw[->] (01) to node {} (A);
  \draw[->] (A) to node {$\alpha$} (B);
  \draw[->] (B) to node {$\beta$} (C);
  \draw[->] (C) to node {} (02);
\end{tikzpicture}

但是当节点标签变得更加复杂时，它就会开始变得混乱和有点尴尬。

\begin{tikzpicture}[node distance = 1.25cm, auto]
  \node (01) {$0$};
  \node (AM) [right of=01] {$A \oplus M$};
  \node (BM) [right of=AM] {$B \oplus M$};
  \node (C) [right of=BM] {$C$};
  \node (02) [right of=C] {$0$};
  \draw[->] (01) to node {} (AM);
  \draw[->] (AM) to node {$\alpha'$} (BM);
  \draw[->] (BM) to node {$\beta'$} (C);
  \draw[->] (C) to node {} (02);
\end{tikzpicture}

（抱歉，我不知道如何让 TeX 编译并实际出现在这篇文章中）

那么，有没有办法设置标准箭头长度，或者让节点距离通过节点之间的空间而不是中心到中心来测量？

答案1

使用positioning库和新语法

right =of 01

而不是right of=01。我希望你的幸福感会增加；）

\documentclass[tikz]{standalone}
\usetikzlibrary{positioning}
\begin{document}
\begin{tikzpicture}[node distance = 1.25cm, auto]
  \node (01) {$0$};
  \node (AM) [right =of 01] {$A \oplus M$};
  \node (BM) [right =of AM] {$B \oplus M$};
  \node (C) [right =of BM] {$C$};
  \node (02) [right =of C] {$0$};
  \draw[->] (01) to node {} (AM);
  \draw[->] (AM) to node {$\alpha'$} (BM);
  \draw[->] (BM) to node {$\beta'$} (C);
  \draw[->] (C) to node {} (02);
\end{tikzpicture}

\begin{tikzpicture}[node distance = 1.25cm, auto]
  \node (01) {$0$};
  \node (A) [right =of 01] {$A$};
  \node (B) [right =of A] {$B$};
  \node (C) [right =of B] {$C$};
  \node (02) [right =of C] {$0$};
  \draw[->] (01) to node {} (A);
  \draw[->] (A) to node {$\alpha$} (B);
  \draw[->] (B) to node {$\beta$} (C);
  \draw[->] (C) to node {} (02);
\end{tikzpicture}
\end{document}

在此处输入图片描述

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