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使用额外的 x 刻度和额外的 y 刻度标记轴

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使用额外的 x 刻度和额外的 y 刻度标记轴

我正在尝试编写代码，以便将其编译为使用和TikZ标记轴，就像使用、、和标记轴一样。（这样做的原因是，我可以使用和沿轴放置标题。）现在，我有xyextra x ticks=extra y ticks=TikZxlabel=$x$ylabel=$y$xlabel style={at={(ticklabel* cs:1)},anchor=north west}ylabel style={at={(ticklabel* cs:1)},anchor=south west}xlabelylabel

extra x ticks={}和extra y ticks={}

因为TikZ没有编译代码

extra x ticks={$x$}和extra y ticks={$y$}

怎么了？

\documentclass{amsart}
\usepackage{tikz}
\usetikzlibrary{calc}

\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\begin{document}

\begin{tikzpicture}
\begin{axis}[width=6in,axis equal image,clip=false,
    axis lines=middle,
    xmin=-42.5,xmax=42.5,
    ymin=-42.5,ymax=42.5,
    restrict y to domain=-42.5:42.5,
    xtick={},ytick={},
    ticklabel style={font=\tiny,fill=white},
    enlargelimits={abs=0.25cm},
    axis line style={latex-latex},
    extra x ticks={},extra y ticks={},
    extra x tick style={xticklabel style={at={(ticklabel* cs:1)},anchor=north west}},
    extra y tick style={yticklabel style={at={(ticklabel* cs:1)},anchor=south west}}
]
\addplot[samples=501,domain=-40:64/41,blue] {(x + 16)/(x - 2)};
\addplot[samples=501,domain=32/13:40,blue] {(x + 16)/(x - 2)} node[above,pos=0.9,font=\footnotesize]{$y=\frac{x+16}{x-2}$};

\addplot[dashed, latex-latex, samples=2, domain=-42.5:42.5] {1} node[above,pos=0.1,font=\footnotesize]{$y=1$};
\addplot [dashed, latex-latex, samples=2, domain=-42.5:42.5] (2,x) node [pos=0.1, anchor=north, font=\footnotesize, sloped] {$x=2$};

\addplot coordinates{(5,7)} node[anchor=west,font=\footnotesize]{$(5,7)$};
\end{axis}
\end{tikzpicture}

\end{document}

答案1

老实说，我会做相反的事情。使用轴标签作为轴，然后使用额外的刻度来表示任何额外的信息。

输出

图1

代码

\documentclass{amsart}
\usepackage{tikz}
\usetikzlibrary{calc}

\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\begin{document}

\begin{tikzpicture}
\begin{axis}[width=6in,axis equal image,clip=false,
    axis lines=middle,
    xmin=-42.5,xmax=42.5,
    ymin=-42.5,ymax=42.5,
    restrict y to domain=-42.5:42.5,
    xtick={},ytick={},
    ticklabel style={font=\tiny,fill=white},
    enlargelimits={abs=0.25cm},
    axis line style={latex-latex},  
    xlabel={$x$},
    ylabel={$y$},
    x label style={at={(axis description cs:1,.5)},anchor=north west},
    y label style={at={(axis description cs:.5,1)},anchor=south west},
    extra x ticks={5},
    extra x tick label={Hello!},
    every extra x tick/.style={tick label style={fill=none, rotate=-45,anchor=west}},
]
\addplot[samples=501,domain=-40:64/41,blue] {(x + 16)/(x - 2)};
\addplot[samples=501,domain=32/13:40,blue] {(x + 16)/(x - 2)} node[above,pos=0.9,font=\footnotesize]{$y=\frac{x+16}{x-2}$};

\addplot[dashed, latex-latex, samples=2, domain=-42.5:42.5] {1} node[above,pos=0.1,font=\footnotesize]{$y=1$};
\addplot [dashed, latex-latex, samples=2, domain=-42.5:42.5] (2,x) node [pos=0.1, anchor=north, font=\footnotesize, sloped] {$x=2$};

\addplot coordinates{(5,7)} node[anchor=west,font=\footnotesize]{$(5,7)$};
\end{axis}
\end{tikzpicture}
\end{document}

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