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在 tikz 包中标记图形

tag-icon • tag-icon tikz-pgf feynman tikz-feynman
在 tikz 包中标记图形

考虑下面这段代码，它使用tikz-feynman包裹：

\usepackage{tikz-feynman, contour}
\tikzfeynmanset{compat=1.1.0}

\begin{document}
\begin{center}
    \begin{tikzpicture}[baseline={(current bounding box.center)}]
    \begin{feynman}
        \diagram [vertical'=a to b] {
            {   [edges={draw=none}]
                a -- b [label=0:\(\mu_{3}\)]
                -- c [label=-180:\(\mu_{4}\)]
                -- d [label=-180:\(\mu_{1}\)]
                -- a [label=0:\(\mu_{2}\)],
            },
            {   [edges={photon}]
                a -- ap [particle=\(p_{2}\)],
                b -- bp [particle=\(p_{3}\)],
                d -- dp [particle=\(p_{1}\)],
                c -- cp [particle=\(p_{4}\)],
            },
        };
        \diagram* {
            (c) -- [fermion] (b)
                -- [fermion] (d)
                -- [fermion] (a)
                -- (c),
        };
    \end{feynman}
    \end{tikzpicture}
    %
    \feynmandiagram[baseline={(current bounding box.center)}, vertical'=a to b,] {
        {   [edges={fermion}]
            a -- b [label=0:\(\mu_{3}\)]
            -- c [label=-180:\(\mu_{4}\)]
            -- d [label=-180:\(\mu_{1}\)]
            -- a [label=0:\(\mu_{2}\)],
        },
        {   [edges={photon}]
            a -- ap [particle=\(p_{2}\)],
            b -- bp [particle=\(p_{3}\)],
            d -- dp [particle=\(p_{1}\)],
            c -- cp [particle=\(p_{4}\)],
        },
    };
    %
    \begin{tikzpicture}[baseline={(current bounding box.center)}]
    \begin{feynman}
        \diagram [vertical'=a to b] {
            {   [edges={draw=none}]
                a -- b [label=0:\(\mu_{3}\)]
                -- c [label=-180:\(\mu_{4}\)]
                -- d [label=-180:\(\mu_{1}\)]
                -- a [label=0:\(\mu_{2}\)],
            },
            {   [edges={photon}]
                a -- ap [particle=\(p_{2}\)],
                b -- bp [particle=\(p_{3}\)],
                d -- dp [particle=\(p_{1}\)],
                c -- cp [particle=\(p_{4}\)],
            },
        };
        \diagram* {
            (a) -- [anti fermion] (b)
                -- [anti fermion] (d)
                -- [anti fermion] (c)
                -- (a),
        };
    \end{feynman}
    \end{tikzpicture}
    \end{center}
\end{document}

这段代码绘制了下图：

我想给每幅图贴上标签。我不需要标题，只需要在每幅图下贴上标签。标签上应该写着“图 I”、“图 II”、“图 III”。

我该如何在我的代码中实现它？

答案1

我没有得到预期的图表，但这对我的答案并不重要：使用 tabular。

在此处输入图片描述

\documentclass{article}

\usepackage{tikz-feynman, contour}
\tikzfeynmanset{compat=1.1.0}

\begin{document}
\begin{center}
    \begin{tabular}{ccc}
    \begin{tikzpicture}[baseline={(current bounding box.center)}]
    \begin{feynman}
        \diagram [vertical'=a to b] {
            {   [edges={draw=none}]
                a -- b [label=0:\(\mu_{3}\)]
                -- c [label=-180:\(\mu_{4}\)]
                -- d [label=-180:\(\mu_{1}\)]
                -- a [label=0:\(\mu_{2}\)],
            },
            {   [edges={photon}]
                a -- ap [particle=\(p_{2}\)],
                b -- bp [particle=\(p_{3}\)],
                d -- dp [particle=\(p_{1}\)],
                c -- cp [particle=\(p_{4}\)],
            },
        };
        \diagram* {
            (c) -- [fermion] (b)
                -- [fermion] (d)
                -- [fermion] (a)
                -- (c),
        };
    \end{feynman}
    \end{tikzpicture}
    &
    \feynmandiagram[baseline={(current bounding box.center)}, vertical'=a to b,] {
        {   [edges={fermion}]
            a -- b [label=0:\(\mu_{3}\)]
            -- c [label=-180:\(\mu_{4}\)]
            -- d [label=-180:\(\mu_{1}\)]
            -- a [label=0:\(\mu_{2}\)],
        },
        {   [edges={photon}]
            a -- ap [particle=\(p_{2}\)],
            b -- bp [particle=\(p_{3}\)],
            d -- dp [particle=\(p_{1}\)],
            c -- cp [particle=\(p_{4}\)],
        },
    };
    &
    \begin{tikzpicture}[baseline={(current bounding box.center)}]
    \begin{feynman}
        \diagram [vertical'=a to b] {
            {   [edges={draw=none}]
                a -- b [label=0:\(\mu_{3}\)]
                -- c [label=-180:\(\mu_{4}\)]
                -- d [label=-180:\(\mu_{1}\)]
                -- a [label=0:\(\mu_{2}\)],
            },
            {   [edges={photon}]
                a -- ap [particle=\(p_{2}\)],
                b -- bp [particle=\(p_{3}\)],
                d -- dp [particle=\(p_{1}\)],
                c -- cp [particle=\(p_{4}\)],
            },
        };
        \diagram* {
            (a) -- [anti fermion] (b)
                -- [anti fermion] (d)
                -- [anti fermion] (c)
                -- (a),
        };
    \end{feynman}
    \end{tikzpicture}\\
    Diagram I & Diagram II & Diagram III
    \end{tabular}
    \end{center}
\end{document}

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