☰

關於圖表上刻度的問題

tag-icon • tag-icon pgfplots tikz-graphs
關於圖表上刻度的問題

我正在嘗試製作一個背景有網格的圖表。我希望它是標準視窗大小，但我只想要軸x和y軸上 -10 和 10 旁邊的數字。我正在使用這個代碼

\begin{tikzpicture}
\begin{axis}[
  axis lines=middle,
  grid=major,
  xmin=-10,
  xmax=10,
  ymin=-10,
  ymax=10,
  xlabel=$x$,
  ylabel=$y$,
  xtick={-10,...,10},
  ytick={-10,...,10},
  tick style={very thick},
  legend style={
  at={(rel axis cs:0,1)},
  anchor=north west,draw=none,inner sep=0pt,fill=gray!10}
]
\addplot[domain=-3:3,blue,thick,samples=100,<->] {x^2};
\addplot[holdot] coordinates{(0,0)(4,4)(6,-5)};
\addplot[soldot] coordinates{(4,16)(6,6)(10,-5)};
%%\addlegendentry{$y=x^2$}
%%\addplot[domain=0:4,blue,] {x*x};
\addplot[domain=4:6,blue,] {x};
\addplot[domain=6:10,blue] {-5};
\end{axis}
\end{tikzpicture}

當我更改xtick={-10,...,10},網格時，網格也會消失，所有其他不存在-10或不存在的刻度線也會消失10

我怎樣才能使刻度線存在但數字不存在？

更新：這是修復了原始問題的更新版本，但現在我正在嘗試找出 x 軸、y 軸標籤的良好位置

\begin{tikzpicture}
\centering
\begin{axis}[
  axis lines=middle,
  grid=major,
  xmin=-10,
  xmax=10,
  ymin=-10,
  ymax=10,
  xlabel style ={at={(1,0.5)},above right},
  ylabel style ={at={(0.5,1)},above right},
  xtick={-10,...,10},
  xticklabels={},    %% no x tick labels
  ytick={-10,...,10},
  yticklabels={},    %% no y tick labels
  extra x ticks={-10,10},
  extra x tick labels={-10,10},
  extra y ticks={-10,10},
  extra y tick labels={-10,10},
  tick style={very thick},
  legend style={
  at={(rel axis cs:0,1)},
  anchor=north west,draw=none,inner sep=0pt,fill=gray!10}
]
\addplot[domain=-10:10,blue,thick,samples=1000,->] {sqrt (x+4)};
%%\addplot[holdot] coordinates{(0,0)(4,4)(6,-5)};
\addplot[soldot] coordinates{(0,2)(5,3)};
%%\addlegendentry{$y=x^2$}
%%\addplot[domain=0:4,blue,] {x*x};
%%\addplot[domain=4:6,blue,] {x};
%%\addplot[domain=6:10,blue] {-5};
\end{axis}
\end{tikzpicture}

答案1

您可以使用

  xticklabels={},      %% no x tick labels
  yticklabels={},      %% no y tick labels
  extra x ticks={-10,10},
  extra x tick labels={-10,10},
  extra y ticks={-10,10},
  extra y tick labels={-10,10},

代碼：

\documentclass{article}
\usepackage{pgfplots}
\begin{document}
  \begin{tikzpicture}
\begin{axis}[
  axis lines=middle,
  grid=major,
  xmin=-10,
  xmax=10,
  ymin=-10,
  ymax=10,
  xlabel=$x$,
  ylabel=$y$,
  xtick={-10,...,10},
  xticklabels={},    %% no x tick labels
  ytick={-10,...,10},
  yticklabels={},    %% no y tick labels
  extra x ticks={-10,10},
  extra x tick labels={-10,10},
  extra y ticks={-10,10},
  extra y tick labels={-10,10},
  tick style={very thick},
  legend style={
  at={(rel axis cs:0,1)},
  anchor=north west,draw=none,inner sep=0pt,fill=gray!10}
]
\addplot[domain=-3:3,blue,thick,samples=100,<->] {x^2};
\addplot coordinates{(0,0)(4,4)(6,-5)};
\addplot coordinates{(4,16)(6,6)(10,-5)};
%%\addlegendentry{$y=x^2$}
%%\addplot[domain=0:4,blue,] {x*x};
\addplot[domain=4:6,blue,] {x};
\addplot[domain=6:10,blue] {-5};
\end{axis}
\end{tikzpicture}
\end{document}

在此輸入影像描述

xlabel style ={at={(1,0.5)},above right},
ylabel style ={at={(0.5,1)},above right},

在軸選項中得到

在此輸入影像描述

對於編輯後的問題，您必須指定xlabel和ylabel。

  xlabel=$x$,
  ylabel=$y$,
  xlabel style ={at={(1,0.5)},above right},
  ylabel style ={at={(0.5,1)},above right},

完整的程式碼以消除混亂。

\documentclass{article}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\centering
\begin{axis}[
  axis lines=middle,
  grid=major,
  xmin=-10,
  xmax=10,
  ymin=-10,
  ymax=10,
  xlabel=$x$,
  ylabel=$y$,
  xlabel style ={at={(1,0.5)},above right},
  ylabel style ={at={(0.5,1)},above right},
  xtick={-10,...,10},
  xticklabels={},    %% no x tick labels
  ytick={-10,...,10},
  yticklabels={},    %% no y tick labels
  extra x ticks={-10,10},
  extra x tick labels={-10,10},
  extra y ticks={-10,10},
  extra y tick labels={-10,10},
  tick style={very thick},
  legend style={
  at={(rel axis cs:0,1)},
  anchor=north west,draw=none,inner sep=0pt,fill=gray!10},clip=false
]
\addplot[domain=-10:10,blue,thick,samples=1000,->] {sqrt (x+4)};
%%\addplot[holdot] coordinates{(0,0)(4,4)(6,-5)};
\addplot coordinates{(0,2)(5,3)};
%%\addlegendentry{$y=x^2$}
%%\addplot[domain=0:4,blue,] {x*x};
%%\addplot[domain=4:6,blue,] {x};
%%\addplot[domain=6:10,blue] {-5};
\end{axis}
\end{tikzpicture}

\end{document}

相關內容