保持路径在轴内

Question

在以下示例中：

\documentclass{article}
\usepackage{tikz, pgfplots}
\usepgfplotslibrary{fillbetween}                                                                                                                                                                           
\pgfplotsset{compat=1.14}
\begin{document}
\begin{tikzpicture}
  \begin{axis}
    \addplot [name path = plot1] coordinates {
      (0, 2)
      (2, 5)
      (3, 7)
    };
    \draw [name path = plot2] (0, 2) -- (5, 2);
  \end{axis}
\end{tikzpicture}
\end{document}

如结果所示，路径plot2超出了范围：axis

如何使axis调整本身尽可能地包围路径，plot2就像调整包围路径一样plot1？

Answer 1

pgpflots\path计算边界框时不考虑s，但您可以\addplot改为用 绘制线条。如果线条不可见，请添加draw=none到\addplot设置中。

\documentclass{article}
\usepackage{pgfplots}
\usepgfplotslibrary{fillbetween}                                                                                                                                                                           
\pgfplotsset{compat=1.14}
\begin{document}
\begin{tikzpicture}
  \begin{axis}
    \addplot [name path = plot1] coordinates {
      (0, 2)
      (2, 5)
      (3, 7)
    } coordinate (end);
    \addplot [draw=none,name path = plot2] coordinates {(0, 2)(5, 2)};

    \addplot [blue!10] fill between[of=plot1 and plot2];
  \end{axis}
\end{tikzpicture}
\end{document}