如何完成这幅由两个圆弧和两张图片及箭头之间的角度组成的LaTeX绘图？

Question

我有以下我设法绘制的 TikZ 图片：

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\draw[thick] (0cm,0cm) circle(1cm);

\foreach \x in {30,45} {
                % lines from center to point
                \draw[black,->] (0cm,0cm) -- (\x:1cm);
                % dots at each point
                \filldraw[black] (\x:1cm) circle(0.4pt);
        }

\end{tikzpicture}
\end{document}

我想添加以下元素：

1. 我想在两个箭头之间添加一个角度标记（带有“x”的圆圈的一部分）。

2. 我想要一个在圆圈左边的图像和一个在圆圈右边的图像，以及两条线，一条从左边的图像到圆圈里的左箭头，一条从圆圈里的右箭头到右图像（不确定是否完全有意义，但想法是将每个图像映射到其中一个向量）。

Answer 1

纯粹基于猜测……

\documentclass[tikz,border=3mm]{standalone}
\usetikzlibrary{arrows,angles,quotes}

\begin{document}
\begin{tikzpicture}[
   angle radius = 7mm,
my angle/.style = {draw,
                   angle eccentricity=1.2,
                   font=\footnotesize,
                   <->}, % angle label position!
    Arrow/.style= {ultra thick,gray,-stealth, 
                   shorten <=7mm, %shorten >=0.5mm,
                   draw=gray}
                    ]
\coordinate  (c) at (0,0);
\draw[thick] (c) circle(1cm);
\foreach \x [count=\i] in {30,45} 
{
% dots at each point
    \filldraw[gray] (\x:1cm) circle(1pt);
% lines from center to point
    \draw[black,->] (c) -- coordinate (m\i) (\x:1cm) coordinate (a\i);
}
\pic [my angle,"$x$"]  {angle = a1--c--a2};
\pic [my angle,"$x$",red,angle radius = 10mm,]  {angle = a1--c--a2};
% left image, simulated by node
\node (li)  [draw, minimum size=20mm,align=center,left]  at (-2,0) {left\\ image};
\node (ri)  [draw, minimum size=20mm,align=center,right] at ( 2,0) {right\\ image};
    \draw[Arrow]    (li.center) to [out=45, in=135]  (m2);
    \draw[Arrow]    (ri.center) to [out=225,in=-60]  (m1);
\end{tikzpicture}
\end{document}

如果我的猜测正确，我会做出简短的解释（如果有必要的话）。

Answer 2

不知道这是否能解决您的问题。

\documentclass{standalone}
\usepackage{tikz}
\begin{document}
    \begin{tikzpicture}
        \draw[thick] (0cm,0cm) circle(1cm);

        \foreach \x in {15,60} {
            % lines from center to point
            \draw[black,->] (0cm,0cm) -- (\x:1cm);
            % dots at each point
            \filldraw[black] (\x:1cm) circle(0.4pt);
        }

        \draw[->] (15:0.5cm) arc (15:60:0.5);
        \node at(35:0.3cm) {$x$};

        % left image
        \draw[thick] (-2.5cm,0cm) circle (1cm);

        % right image
        \draw[thick] (2.5cm,0cm) circle(1cm);

        % line from left image to the left arrow
        \draw[->] (-2.5cm,0cm) -- (60:1cm);

        % line from the right arrow to the right image
        \draw[->] (15:1cm) -- (2.5cm,0cm);
    \end{tikzpicture}
\end{document}