将轴与 \tikzpicture 对齐

Question

按照@Jake 对该问题的回答\addplot 和 \draw，我设置了如下代码：

\documentclass{standalone}
\usepackage{tikz, pgfplots}
\def\points{
  (1, 1)
  (2, 2)
  }
\begin{document}
\begin{tikzpicture}
  \draw[thick, color=red](1, 1) -- (2, 2);
  \begin{axis}[anchor = origin, x = 1cm, y = 1cm, hide axis]
    \addplot [color = blue] coordinates {\points};
  \end{axis}
\end{tikzpicture}
\end{document}

结果是

显然axis和\tikzpicture没有正确对齐。哪里出了问题？

Answer 1

设置xmin=0, ymin=0修复了该问题：

\documentclass{standalone}
\usepackage{tikz, pgfplots}
\def\points{
  (1, 1)
  (2, 2)
  }
\begin{document}
\begin{tikzpicture}
  \draw[thick, color=red](1, 1) -- (2, 2);
  \begin{axis}[anchor = origin, x = 1cm, y = 1cm, hide axis, xmin=0, ymin=0]
    \addplot [color = blue] coordinates {\points};
  \end{axis}
\end{tikzpicture}
\end{document}