![用箭頭繪製圓弧](https://rvso.com/image/475734/%E7%94%A8%E7%AE%AD%E9%A0%AD%E7%B9%AA%E8%A3%BD%E5%9C%93%E5%BC%A7.png)
下面的程式碼(使用該pict2e
套件)似乎達到了我的預期,但我想進行一些進一步的編輯並添加一些其他行並以不同的方式標記角度。
當角度彼此相鄰(共享公共頂點)時,可以通過兩條射線之間並以頂點為中心的弧來明確從頂點發出的哪對射線對應於給出角度名稱的標籤,其中圓弧和頂點之間的角度標籤,以及圓弧兩端的箭頭,以明確哪兩條射線綁定了帶有該標籤的圓弧。
有沒有簡單的方法來繪製有箭頭的弧線?
\documentclass{article}
\usepackage{pict2e}
\begin{document}
\begin{figure}[h]
\setlength{\unitlength}{0.5mm}
\begin{picture}(200,180)(-35,0)
\label{hexagon}
\put(90,100){\circle{180}} % left big circle
\put(90,190){\circle*{4}} % dot at top of circle
\put(144,172){\circle*{4}} % dot at
\put(162,46){\circle*{4}} % dot at
\put(90,10){\circle*{4}} % dot at bottom of circle
\put(0,100){\circle*{4}}
\put(36,172){\circle*{4}}
\put(90,10){\line(-1,1){90}} % line
\put(0,100){\line(1,2){36}}
\put(36,172){\line(3,1){54}}
\put(90,190){\line(3,-1){54}}
\put(144,172){\line(1,-7){18}}
\put(90,10){\line(2,1){72}}
\put(0,100){\line(1,1){90}}
\put(0,100){\line(2,1){144}}
\put(0,100){\line(3,-1){162}}
\put(90,10){\line(-1,3){54}}
\put(90,10){\line(0,1){180}}
\put(90,10){\line(1,3){54}}
\put(15,121){$\delta$}
\put(20,115){$\gamma$}
\put(22,100){$\beta$}
\put(18,85){$\alpha$}
\put(103,26){$\beta$}
\put(92,34){$\gamma$}
\put(85,34){$\delta$}
\put(75,30){$\varepsilon$}
\put(36,172){\line(1,0){108}}
\put(36,172){\line(1,-1){126}}
\put(90,190){\line(1,-2){72}}
\put(149,76){$\gamma$}
\put(140,71){$\delta$}
\put(135,59){$\varepsilon$}
\put(137,42){$\zeta$}
\put(113,173){$\delta$}
\put(116,164){$\varepsilon$}
\put(127,152){$\zeta$}
\put(139,146){$\alpha$}
\end{picture}
\caption{}
\label{diagonals}
\end{figure}
\end{document}