正方形边的标签

Question

我需要用无理数标记一个正方形。假设我有一个大小为 2 $\pi$ $\times$ 2 $\pi$ 的正方形。但想到像这样显示轴：

但是当我编写代码时，它的字体非常小，数字非常接近

\documentclass[tikz,border=0.14mm]{standalone}

\usepackage{tikz}

\begin{document}
    \Huge
    \begin{tikzpicture}

    \draw (0,0) rectangle (2,2);

    \draw[thick] (1-0.2,-0.5) node[anchor=north west] {$x$};
    \draw[thick] (-0.5,1-0.3) node[anchor=south east] {$y$};

    \foreach \x in {0,1/2,1,3/2,2}
    \draw (\x ,0.05pt) -- (\x ,-0.05pt) node[anchor=north] {$\x$};
    \foreach \y in {0,1/2,1,3/2,2}
    \draw (0.05pt,\y ) -- (-0.05pt,\y ) node[anchor=east] {$\y$};

    \end{tikzpicture}

\end{document}

Answer 1

pi只需说即可缩放轴scale=pi。除非添加transform shape，否则文本不会缩放。

\documentclass[tikz,border=0.14mm]{standalone}

\usepackage{tikz}

\begin{document}
    \begin{tikzpicture}[scale=pi]

    \draw (0,0) rectangle (2,2);

    \draw[thick] (1-0.2,-0.5) node[anchor=north west] {$x$};
    \draw[thick] (-0.5,1-0.3) node[anchor=south east] {$y$};

    \foreach \x in {0,1/2,1,3/2,2}
    \draw (\x ,0.05pt) -- (\x ,-0.05pt) node[anchor=north] {$\x$};
    \foreach \y in {0,1/2,1,3/2,2}
    \draw (0.05pt,\y ) -- (-0.05pt,\y ) node[anchor=east] {$\y$};
    \draw (0,0) -- (1,1) -- (2,0);
    \draw[red] (0,2)  -- (1,1) -- (2,2) (0,1)  -- (1,2);
    \draw[red,dashed] (1,2)  -- (2,1);
    \node[align=center] at (0.5,1) {Fish\\ don't like\\ this island};
    \node[align=center] at (1,1.5) {Fish\\ island\\ 1};
    \node[align=center] at (1.5,1) {Fish\\ island\\ 2};
    \end{tikzpicture}

\end{document}