我怎样才能去除外面的矩形并保留里面的正方形？

Question

当我使用 命令 时，出现了一个矩形和一个正方形\draw[clip]，但我只需要内部的正方形。我应该怎么做才能删除外部的矩形？当我使用 时\path，矩形和正方形都消失了。

    \documentclass[a4paper, 11pt]{article}

\usepackage[a4paper,
    tmargin=2cm,%
    rmargin=2cm,%
    bmargin=2cm,%
    lmargin=2cm,
    vscale=1,%
    hscale=1]{geometry}

\usepackage{tikz}

% only used for the example
\newlength{\skiplength}
\setlength{\skiplength}{1cm}
\setlength{\parskip}{\skiplength}
\setlength{\parindent}{0pt}

\begin{document}
\centering{
A1\\
\vspace{\skiplength}
\begin{tikzpicture}[x=11.1cm, y=7.5cm]
    \draw [clip=true model=individual] (0, 0) -- (1, 0) -- (1, 1) -- (0, 1) -- cycle
         (2cm, 0.5cm)
        [rounded corners=5pt] -- (2cm, 2.5cm)
        [rounded corners=10pt] -- (4cm, 2.5cm)
        [rounded corners=0.5cm] -- (4cm, 0.5cm)
        [sharp corners] -- cycle;

    \node[anchor=south west,%
        inner sep=0,%
        outer sep=0pt] (image) at (0, 0) {\includegraphics{a1_03}};
\end{tikzpicture}
}



\end{document} 

Answer 1

基于https://tex.stackexchange.com/a/290508/36296

这就是你想做的事吗？

\documentclass[a4paper, 11pt]{article}

\usepackage[a4paper,
    tmargin=2cm,%
    rmargin=2cm,%
    bmargin=2cm,%
    lmargin=2cm,
    vscale=1,%
    hscale=1]{geometry}

\usepackage{tikz}

% only used for the example
\newlength{\skiplength}
\setlength{\skiplength}{1cm}
\setlength{\parskip}{\skiplength}
\setlength{\parindent}{0pt}

\usetikzlibrary{graphs,graphs.standard}

\tikzset{
    clip even odd rule/.code={\pgfseteorule}, % Credit to Andrew Stacey 
  invclip/.style = {
    clip,
    insert path = [clip even odd rule]{
        [reset cm](-\maxdimen,-\maxdimen)rectangle(\maxdimen,\maxdimen)
    }
  }
}

\begin{document}
\centering{
A1\\
\vspace{\skiplength}
\begin{tikzpicture}[x=11.1cm, y=7.5cm]
    \begin{pgfinterruptboundingbox}        \clip[invclip] (2cm, 2.5cm)  [rounded corners=5pt]  -- (4cm, 2.5cm) -- (4cm, 0.5cm) -- (2cm, 0.5cm) -- (2cm, 2.5cm) [sharp corners] --  cycle;
    \end{pgfinterruptboundingbox}
    \node[anchor=south west,%
        inner sep=0,%
        outer sep=0pt] (image) at (0, 0) {\includegraphics[width=8cm]{example-image}};
        \draw[red, line width = 4pt] (2.1cm, 2.5cm)  [rounded corners=5pt]  -- (4cm, 2.5cm) -- (4cm, 0.5cm) -- (2cm, 0.5cm) -- (2.cm, 2.5cm) [sharp corners] --  cycle;
\end{tikzpicture}
}



\end{document}