坐标平面，为什么只有 2 个箭头

Question

在论坛上找到了这个坐标平面，我非常喜欢它。我想要 4 个箭头，每个轴上 2 个，指向所有 4 个方向，而不是 2 个。不知道为什么箭头只指向右上方。我在许多笛卡尔平面上都见过这种情况。

短暂性脑缺血发作

以下是代码

\documentclass[tikz]{standalone}
\usepackage{tkz-euclide}

\begin{document}
\begin{figure}[h]
\begin{tikzpicture}
       \tkzInit[xmax=6,ymax=6,xmin=-6,ymin=-6]
       \tkzGrid
       \tkzAxeXY
\draw[ thick,latex-latex] (-1,4) -- (4,-6) node[anchor=south west] {$a$}; % two points for drawing 2x+y=2
\tkzText[above](0,6.75){Desired Output}
\end{tikzpicture}
\end{figure}
\end{document}

pgfplots坐标平面代码

\documentclass[border=5mm]{standalone}
\usepackage{pgfplots}
\usetikzlibrary{arrows.meta}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
  axis lines=middle,
  axis line style={Stealth-Stealth, very thick},
  xmin=-10,xmax=10,ymin=-10,ymax=10,
  xtick distance=1,
  ytick distance=1,
  xlabel=$x$,
  ylabel=$y$,
  title={},
  grid=major,
  grid style={thick,black!50}]
\addplot [Latex-Latex,domain=-5:3,samples=2] {x*2/3} node[right]{$a$};
\end{axis}
\end{tikzpicture}
\end{document}

Answer 1

我建议你改变距离规范

xtick distance=2,
ytick distance=2,

要更改刻度标签的字体，您可以使用：

xticklabel style={font=\small},
yticklabel style={font=\small},

代码：

\documentclass[border=5mm]{standalone}
\usepackage{pgfplots}
\usetikzlibrary{arrows.meta}

\begin{document}
\begin{tikzpicture}
\begin{axis}[
  axis lines=middle,
  axis line style={Stealth-Stealth, thick},
  xmin=-10,xmax=10,ymin=-10,ymax=10,
  xtick distance=2,
  ytick distance=2,
  xlabel=$x$,
  ylabel=$y$,
  xticklabel style={font=\small},
  yticklabel style={font=\small},
  title={},
  grid=major,
  grid style={thin,black!50}]
\addplot [Latex-Latex, red, thick, domain=-10:10,samples=2] {x*2/3} node[above left]{$a$};
\end{axis}
\end{tikzpicture}
\end{document}

Answer 2

\documentclass[tikz]{standalone}

\usepackage{tkz-base,tkz-euclide}
\begin{document}

\begin{tikzpicture}
   \tkzInit[xmax=6,ymax=6,xmin=-6,ymin=-6]
   \tkzGrid
   \tikzset{xaxe style/.style    =   {>  =   latex,  <->}
   }  
   \tikzset{yaxe style/.style    =   {>          =   latex, < ->}
   }
   \tkzAxeXY
   \tkzDefPoints{-1/4/A,4/-6/B}
   \tkzDrawSegment[red,latex-latex](A,B)
  \tkzText[above](0,6.75){Desired Output}
  \end{tikzpicture}

\end{document}