在比例框中的子图之间绘制箭头

Question

我正在尝试用箭头连接单独的 tikz 图像内的点。叠加选项效果很好，但必须缩放图像才能适合幻灯片（我在 beamer 演示中使用它们）。但是，当我使用 scalebox 绘制图表时，箭头会绘制在原始（未缩放）坐标上。缩放箭头也不起作用。有没有办法解决这个问题（也许不使用 scalebox）？

谢谢您的回答。

梅威瑟：

\documentclass[preview]{standalone}
\usepackage[utf8]{inputenc}
\usepackage{subcaption}
\usepackage{tikz}

\begin{document}
\begin{figure}[htb]
    \centering
    \begin{subfigure}[b]{0.45\textwidth}    
        \scalebox{0.65}{%
        \begin{tikzpicture}[remember picture]
        \tikzset{point/.style = {circle, fill=black, draw=black, inner sep=2pt}} % Points
        \draw[thick,->,>=stealth](-0.5,0)--(6,0) node[right]{$x$}; % Axis X
        \draw[thick,->,>=stealth](0,-0.5)--(0,4) node[above]{$y$}; % Axis Y
        \node[point, label=above:A] (A) at (2.5,2.5) {}; % Point A
    \end{tikzpicture}}
    \end{subfigure}
    \begin{subfigure}[b]{0.45\textwidth} 
        \scalebox{0.65}{%
        \begin{tikzpicture}[remember picture]
        \tikzset{point/.style = {circle, fill=black, draw=black, inner sep=2pt}} % Points
        \draw[thick,->,>=stealth](-0.5,0)--(6,0) node[right]{$x$}; % Axis X
        \draw[thick,->,>=stealth](0,-0.5)--(0,4) node[above]{$y$}; % Axis Y
        \node[point, label=above:B] (B) at (2.5,2.5) {}; % Point B
        \end{tikzpicture}}
     \end{subfigure}
\end{figure}
\begin{tikzpicture}[overlay, remember picture]
          \path[->,red,thick] (A) edge [bend right] (B);
\end{tikzpicture}
\end{document}

Answer 1

唯一不受影响的点\scalebox是(current bounding box.south west)。

\documentclass[preview]{standalone}
\usepackage[utf8]{inputenc}
\usepackage{subcaption}
\usepackage{tikz}
\usetikzlibrary{calc}

\begin{document}
\begin{figure}[htb]
    \centering
    \begin{subfigure}[b]{0.45\textwidth}    
        \scalebox{0.65}{%
        \begin{tikzpicture}[remember picture]
        \tikzset{point/.style = {circle, fill=black, draw=black, inner sep=2pt}} % Points
        \draw[thick,->,>=stealth](-0.5,0)--(6,0) node[right]{$x$}; % Axis X
        \draw[thick,->,>=stealth](0,-0.5)--(0,4) node[above]{$y$}; % Axis Y
        \node[point, label=above:A] (A) at (2.5,2.5) {}; % Point A
        \coordinate (C) at (current bounding box.south west);
    \end{tikzpicture}}
    \end{subfigure}
    \begin{subfigure}[b]{0.45\textwidth} 
        \scalebox{0.65}{%
        \begin{tikzpicture}[remember picture]
        \tikzset{point/.style = {circle, fill=black, draw=black, inner sep=2pt}} % Points
        \draw[thick,->,>=stealth](-0.5,0)--(6,0) node[right]{$x$}; % Axis X
        \draw[thick,->,>=stealth](0,-0.5)--(0,4) node[above]{$y$}; % Axis Y
        \node[point, label=above:B] (B) at (2.5,2.5) {}; % Point B
        \coordinate (D) at (current bounding box.south west);
        \end{tikzpicture}}
     \end{subfigure}
\end{figure}
\begin{tikzpicture}[overlay, remember picture]
          \path[->,red,thick] ($(C)!0.65!(A)$) edge [bend right] ($(D)!0.65!(B)$);
\end{tikzpicture}
\end{document}

Answer 2

使用scale和transform shape缩放节点的标签。

\documentclass[preview]{standalone}
\usepackage[utf8]{inputenc}
\usepackage{subcaption}
\usepackage{tikz}

\begin{document}
\begin{figure}[htb]
    \centering
    \begin{subfigure}[b]{0.45\textwidth}    
        %\scalebox{0.65}{%
        \begin{tikzpicture}[scale=0.65,transform shape,remember picture]
        \tikzset{point/.style = {circle, fill=black, draw=black, inner sep=2pt}} % Points
        \draw[thick,->,>=stealth](-0.5,0)--(6,0) node[right]{$x$}; % Axis X
        \draw[thick,->,>=stealth](0,-0.5)--(0,4) node[above]{$y$}; % Axis Y
        \node[point, label=above:A] (A) at (2.5,2.5) {}; % Point A
    \end{tikzpicture}
%}
    \end{subfigure}
    \begin{subfigure}[b]{0.45\textwidth} 
        %\scalebox{0.65}{%
        \begin{tikzpicture}[scale=0.65,transform shape,remember picture]
        \tikzset{point/.style = {circle, fill=black, draw=black, inner sep=2pt}} % Points
        \draw[thick,->,>=stealth](-0.5,0)--(6,0) node[right]{$x$}; % Axis X
        \draw[thick,->,>=stealth](0,-0.5)--(0,4) node[above]{$y$}; % Axis Y
        \node[point, label=above:B] (B) at (2.5,2.5) {}; % Point B
        \end{tikzpicture}
%}
     \end{subfigure}
\end{figure}
\begin{tikzpicture}[overlay, remember picture]
          \path[->,red,thick] (A) edge [bend right] (B);
\end{tikzpicture}
\end{document}