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为什么我从一个节点指向另一个节点的箭头没有像我预期的那样弯曲

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为什么我从一个节点指向另一个节点的箭头没有像我预期的那样弯曲

我试图写一个箭头指向一个角度来指定它的大小。但是当我编译它时，我只得到一个直箭头。（请参阅最后一条\draw语句以了解有问题的代码行。）

\documentclass[border=6pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc}
\usetikzlibrary{arrows.meta}
\usetikzlibrary{intersections}
\usepackage{tkz-euclide}
\usetkzobj{all}
\newcommand\degrees[1]{$#1^\circ$}
\begin{document}

\def\aes{in*0.54}%%
\def\aeang{70}%%
\def\aerise{2.15}%%
\def\aerun{4}
\begin{tikzpicture}[>={Stealth[scale=2]}]
  \coordinate (A) at (0,0);
  \coordinate (B) at ($(A)+(3\aes,0)$);
  \coordinate (C) at ($(B)+(-90:2\aes)$);
  \coordinate (ttD) at ($(C)+(180:1\aes)$);

  \coordinate (tD) at ($(A)+(-63:1\aes)$);
  \tkzInterLL(A,tD)(C,ttD)
  \tkzGetPoint{D}

  \draw (A) -- (B) -- (C) -- (D) -- cycle;
  \draw (B) -- (D);

  \draw[arrows=->] (A) -- ($(A)!0.5!(B)$);
  \draw[arrows=->] (D) -- ($(D)!0.5!(C)$);

  \tkzMarkRightAngle(B,C,D)

  \tkzLabelAngle[pos=-0.5,anchor=east,xshift=3pt](A,B,D){$4x$}
  \tkzLabelAngle[pos=0.65](B,D,A){\degrees{65}}
  \tkzLabelAngle[pos=0.8](C,D,B){\degrees{52}}

  \begin{pgfinterruptboundingbox}
  \tkzDefLine[bisector](D,B,C)
  \end{pgfinterruptboundingbox}
  \tkzGetPoint{tE}
  \coordinate (E) at ($(B)!8pt!(tE)$);

  \coordinate (lE) at ($(E)+(-40:0.5\aes)$);

  \node[anchor=west] (nlE) at (lE) {$(3y+5)$};
  \draw[arrows=-{>[scale=0.85]},out=180,in=-90] (nlE.west) -- (E);

\end{tikzpicture}

\end{document}

在此处输入图片描述

答案1

--总是笔直的。你需要一些其他的东西来表示曲线。我认为你正在寻找的是一条弯曲的to路径：

  \draw[arrows=-{>[scale=0.85]}] (nlE.west) [out=180,in=-90] to (E);

曲线

完整代码：

\documentclass[border=6pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc}
\usetikzlibrary{arrows.meta}
\usetikzlibrary{intersections}
\usepackage{tkz-euclide}
\usetkzobj{all}
\newcommand\degrees[1]{$#1^\circ$}
\begin{document}

\def\aes{in*0.54}%%
\def\aeang{70}%%
\def\aerise{2.15}%%
\def\aerun{4}
\begin{tikzpicture}[>={Stealth[scale=2]}]
  \coordinate (A) at (0,0);
  \coordinate (B) at ($(A)+(3\aes,0)$);
  \coordinate (C) at ($(B)+(-90:2\aes)$);
  \coordinate (ttD) at ($(C)+(180:1\aes)$);

  \coordinate (tD) at ($(A)+(-63:1\aes)$);
  \tkzInterLL(A,tD)(C,ttD)
  \tkzGetPoint{D}

  \draw (A) -- (B) -- (C) -- (D) -- cycle;
  \draw (B) -- (D);

  \draw[arrows=->] (A) -- ($(A)!0.5!(B)$);
  \draw[arrows=->] (D) -- ($(D)!0.5!(C)$);

  \tkzMarkRightAngle(B,C,D)

  \tkzLabelAngle[pos=-0.5,anchor=east,xshift=3pt](A,B,D){$4x$}
  \tkzLabelAngle[pos=0.65](B,D,A){\degrees{65}}
  \tkzLabelAngle[pos=0.8](C,D,B){\degrees{52}}

  \begin{pgfinterruptboundingbox}
  \tkzDefLine[bisector](D,B,C)
  \end{pgfinterruptboundingbox}
  \tkzGetPoint{tE}
  \coordinate (E) at ($(B)!8pt!(tE)$);

  \coordinate (lE) at ($(E)+(-40:0.5\aes)$);

  \node[anchor=west] (nlE) at (lE) {$(3y+5)$};
  \draw[arrows=-{>[scale=0.85]}] (nlE.west) [out=180,in=-90] to (E);

\end{tikzpicture}

\end{document}

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