Tikzpicture（水平）相对于节点对齐标题

Question 1

在image节点后添加\useasboundingbox (image.south east) rectangle (image.north west);。此后添加的任何内容都不会考虑的边界框tikzpicture。

为了给带有分数的节点腾出空间，我减少了 sa 位的宽度minipage，并\hfill在它们之间添加了。还请注意，由于您在环境中figure，因此不需要使用\captionof。

\documentclass{article}
\usepackage[demo]{graphicx}

\usepackage{tikz,caption}


\begin{document}
\begin{figure}
  \captionsetup{type=figure,font=footnotesize}
  \begin{minipage}[b]{0.45\textwidth}
    \centering
    \begin{tikzpicture}
      \node [inner sep=0pt] (image) at (0,0) {\includegraphics{}};
      \useasboundingbox (image.south east) rectangle (image.north west);
      \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
    \end{tikzpicture}
    \caption{This is some junk text as caption for figure 1}
  \end{minipage}\hfill
  \begin{minipage}[b]{0.45\textwidth}
    \centering
    \begin{tikzpicture}
      \node [inner sep=0pt] (image) at (0,0) {\includegraphics{}};
      \useasboundingbox (image.south east) rectangle (image.north west);
      \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
    \end{tikzpicture}
    \caption{This is some junk text as caption for figure 2}
  \end{minipage}
\end{figure}
\end{document}

Answer

在image节点后添加\useasboundingbox (image.south east) rectangle (image.north west);。此后添加的任何内容都不会考虑的边界框tikzpicture。

为了给带有分数的节点腾出空间，我减少了 sa 位的宽度minipage，并\hfill在它们之间添加了。还请注意，由于您在环境中figure，因此不需要使用\captionof。

\documentclass{article}
\usepackage[demo]{graphicx}

\usepackage{tikz,caption}


\begin{document}
\begin{figure}
  \captionsetup{type=figure,font=footnotesize}
  \begin{minipage}[b]{0.45\textwidth}
    \centering
    \begin{tikzpicture}
      \node [inner sep=0pt] (image) at (0,0) {\includegraphics{}};
      \useasboundingbox (image.south east) rectangle (image.north west);
      \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
    \end{tikzpicture}
    \caption{This is some junk text as caption for figure 1}
  \end{minipage}\hfill
  \begin{minipage}[b]{0.45\textwidth}
    \centering
    \begin{tikzpicture}
      \node [inner sep=0pt] (image) at (0,0) {\includegraphics{}};
      \useasboundingbox (image.south east) rectangle (image.north west);
      \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
    \end{tikzpicture}
    \caption{This is some junk text as caption for figure 2}
  \end{minipage}
\end{figure}
\end{document}

Question 2

编辑：请看一下 Torbjørn 的解决方案，我相信它比我的更简单、更干净。

如果您想将标题置于整个 minipage/tikzpicture 的中心：这很容易。只需添加justification=centering到您的\captionformat。

\documentclass{scrartcl}

\usepackage{graphicx}
\usepackage{tikz}
\usepackage{caption}

\begin{document}
\begin{figure}
    \begin{minipage}[b]{0.5\textwidth}
    \centering
        \begin{tikzpicture}
            \node (image) at (0,0) {\includegraphics[width=0.8\textwidth]{example-image}};
            \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
        \end{tikzpicture}
        \captionsetup{type=figure,font=footnotesize,justification=centering,format=plain}
        \captionof{figure}{This is some junk text as caption for figure 1}

        % Just for demo, you can remove these two lines
        \noindent\rule{1pt}{6pt}
        \noindent\rule{\textwidth}{1pt}
    \end{minipage}
    \begin{minipage}[b]{0.5\textwidth}
    \centering
        \begin{tikzpicture}
            \node (image) at (0,0) {\includegraphics[width=0.8\textwidth]{example-image}};
            \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
        \end{tikzpicture}
        \captionsetup{type=figure,font=footnotesize,justification=centering,format=plain}
        \captionof{figure}{This is some junk text as caption for figure 2}

        % Just for demo, you can remove these two lines
        \noindent\rule{1pt}{6pt}
        \noindent\rule{\textwidth}{1pt}

    \end{minipage}
\end{figure}
\end{document}

附加的线条表明标题位于小页面的中心。

如果您想将标题置于“真实”图像（我示例中的灰色框）的中心，那么您必须告诉标题您的图像从哪里开始和结束。这可以通过margin={<left>,<right>}\captionsetup 的参数来实现。我在这里用为我的灰色框做了这件事margin={1cm,0.4cm}，但可能需要调整这些值以适合您的图像。

\documentclass{scrartcl}

\usepackage{graphicx}
\usepackage{tikz}
\usepackage{caption}

\begin{document}
\begin{figure}
    \begin{minipage}[b]{0.5\textwidth}
    \centering
        \begin{tikzpicture}
            \node (image) at (0,0) {\includegraphics[width=0.8\textwidth]{example-image}};
            \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
        \end{tikzpicture}
        \captionsetup{type=figure,font=footnotesize,justification=centering,margin={1cm,0.4cm},format=plain}
        \captionof{figure}{This is some junk text as caption for figure 1}
        \noindent\rule{1pt}{6pt}
        \noindent\rule{\textwidth}{1pt}
    \end{minipage}
    \begin{minipage}[b]{0.5\textwidth}
    \centering
        \begin{tikzpicture}
            \node (image) at (0,0) {\includegraphics[width=0.8\textwidth]{example-image}};
            \node (ylabel) at (-3.25,0) {$\frac{test}{test}$};
        \end{tikzpicture}
        \captionsetup{type=figure,font=footnotesize,justification=centering,margin={1cm,0.4cm},format=plain}
        \captionof{figure}{This is some junk text as caption for figure 2}
        \noindent\rule{1pt}{6pt}
        \noindent\rule{\textwidth}{1pt}

    \end{minipage}
\end{figure}
\end{document}

如您所见，标题现在相对于图像位于中心\included。

Answer