tikz 中的锯齿状箭头

Question

我可以\draw [->] (0,0) -- (5,5);用 tikz 画箭头。但是也可以创建锯齿状箭头，比如

我需要像普通箭头一样使用它；从一个节点到另一个节点。

Answer 1

这里有一个手动的解决方案（它是手动的因为您必须在水平线和垂直线之间以及 45 度角或 -45 度角之间进行选择）。

\documentclass[tikz,margin=2mm]{standalone}
\usetikzlibrary{calc}
\tikzset{
  hor jagged -45/.style={to path={
      let \p{s}=(\tikztostart),  \p{e}=(\tikztotarget), \p{m}=($(\p{s})!.5!(\p{e})$),
      \p{s1}=($(\p{m})!1.41421!45:(\p{s}-|\p{m})$), \p{e1}=($(\p{m})!1.41421!45:(\p{e}-|\p{m})$)
      in (\p{s}) -- (\p{s1}) -- (\p{e1}) -- (\p{e})
    },
  },
  hor jagged 45/.style={to path={
      let \p{s}=(\tikztostart), \p{e}=(\tikztotarget), \p{m}=($(\p{s})!.5!(\p{e})$),
      \p{s1}=($(\p{m})!1.41421!-45:(\p{s}-|\p{m})$), \p{e1}=($(\p{m})!1.41421!-45:(\p{e}-|\p{m})$)
      in (\p{s}) -- (\p{s1}) -- (\p{e1}) -- (\p{e})
    },
  },
  ver jagged -45/.style={to path={
      let \p{s}=(\tikztostart), \p{e}=(\tikztotarget), \p{m}=($(\p{s})!.5!(\p{e})$),
      \p{s1}=($(\p{m})!1.41421!-45:(\p{s}|-\p{m})$), \p{e1}=($(\p{m})!1.41421!-45:(\p{e}|-\p{m})$)
      in (\p{s}) -- (\p{s1}) -- (\p{e1}) -- (\p{e})
    },
  },
  ver jagged 45/.style={to path={
      let \p{s}=(\tikztostart), \p{e}=(\tikztotarget), \p{m}=($(\p{s})!.5!(\p{e})$),
      \p{s1}=($(\p{m})!1.41421!45:(\p{s}|-\p{m})$), \p{e1}=($(\p{m})!1.41421!45:(\p{e}|-\p{m})$)
      in (\p{s}) -- (\p{s1}) -- (\p{e1}) -- (\p{e})
    },
  },
}

\begin{document}
\begin{tikzpicture}[line join=round,line cap=round]
  \coordinate (a) at (0,0);
  \coordinate (b) at (4,1);
  \draw[line width=5pt,-latex] (a) to[hor jagged 45] (b);
  \draw[line width=3pt,red,-latex] (a) to[hor jagged -45] (b);
  \draw[line width=2pt,blue,-latex] (a) to[ver jagged 45] (b);
  \draw[line width=.5pt,green,-latex] (a) to[ver jagged -45] (b);
\end{tikzpicture}
\end{document}

Answer 2

您可以使用zigzag设置的样式to path，如下所示：

\documentclass[tikz,border=5pt]{standalone}
\usetikzlibrary{calc}
\tikzset{
  zigzag/.style={to path={ -- ($(\tikztostart)!.55!-7:(\tikztotarget)$) -- ($(\tikztostart)!.45!7:(\tikztotarget)$) -- (\tikztotarget) \tikztonodes}}
}

\begin{document}
  \begin{tikzpicture}
    \draw[-stealth,line width=1mm] (-2,2.5) to[zigzag] +(4,0);

    \foreach[evaluate={\c=\i/3.3}] \i in {0,30,...,330}
      \draw[-latex, red!\c!blue, thick] (0,0) to[zigzag] (\i:2);
  \end{tikzpicture}
\end{document}

Answer 3

假设您总是想要水平或垂直的锯齿形。有办法避免创建一堆新的长度，但目前这应该足够令人困惑了。

\documentclass[border=.1in]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc,arrows}

\newlength{\tempx}
\newlength{\tempy}
\newlength{\absx}
\newlength{\absy}

\newcommand{\zotz}[3][->]% #1=parameters (optional), #2=from x,y, #3= to x,y
{\coordinate (zotzfrom) at (#2);
 \coordinate (zotzto) at (#3);
 \pgfextractx{\tempx}{\pgfpointdiff{\pgfpointanchor{zotzfrom}{center}}%
  {\pgfpointanchor{zotzto}{center}}};
 \pgfextracty{\tempy}{\pgfpointdiff{\pgfpointanchor{zotzfrom}{center}}%
  {\pgfpointanchor{zotzto}{center}}};
 \ifdim\tempx>0pt \absx=\tempx \else\absx=-\tempx \fi
 \ifdim\tempy>0pt \absy=\tempy \else\absy=-\tempy \fi
 \ifdim\absy>\absx
   \draw[#1] (zotzfrom) -- +(0pt,0.6\tempy) -- +(\tempx,.4\tempy) -- (zotzto);
 \else
   \draw[#1] (zotzfrom) -- +(0.6\tempx,0pt) -- +(.4\tempx,\tempy) -- (zotzto);
 \fi}

\begin{document}
\begin{tikzpicture}
\zotz{0,0}{4,1}
\zotz[-latex,red]{0,1}{1,5}
\end{tikzpicture}
\end{document}