pgfplots：旋转刻度标签的问题（“额外 x 刻度”和正常“x 刻度”的旋转方式不同）

Question

• 也许我没有看到明显的事实:)。
• 我想要一个extra x tick不旋转的。
• 法线x ticks必须旋转 90°。
• 我也尝试过，extra x tick style = {rotate = -90},但没有达到预期的效果（定位失败）。

---

\documentclass{article}
\usepackage{pgfplots}

\begin{document}

\begin{tikzpicture}
    \begin{axis}[
        xlabel = {xlabel},
        ylabel = {ylabel},
        xtick = {0, 5},
        xticklabel style = {rotate = 90},
        extra x ticks = {2.5},
        extra x tick labels = {{Test}},
        extra x tick style = {rotate = 0},
    ]
    \addplot {x^2 - x +4};
    \end{axis}
\end{tikzpicture}

\end{document}

Answer 1

您需要定义额外的刻度标签样式。例如extra x tick style={tick label style={rotate=-90}}：

\documentclass{article}
\usepackage{pgfplots}

\begin{document}
    \begin{tikzpicture}
\begin{axis}[
        xlabel = {xlabel},
        ylabel = {ylabel},
        xtick = {0, 5},
        xticklabel style = {rotate = 90},
        extra x ticks = {2.5},
        extra x tick labels = {Test},
        extra x tick style={tick label style={rotate=-90,anchor=north}}, % defined anchor is not necessary but it doesn't harm ;-)
    ]
    \addplot {x^2 - x +4};
\end{axis}
    \end{tikzpicture}
\end{document}

Answer 2

您正在旋转tick0 度 - 您想要label像这样旋转 90 度：

\documentclass{article}
\usepackage{pgfplots}

\begin{document}
\begin{tikzpicture}
    \begin{axis}[
        xlabel = {xlabel},
        ylabel = {ylabel},
        xtick = {0,5},
        xticklabel style = {rotate = 90},
        extra x ticks = {2.5},
        extra x tick style={tick label style={rotate=-90}},
        extra x tick labels = {Test},
    ]
    \addplot {x^2 - x +4};
    \end{axis}
\end{tikzpicture}
\end{document}