![\begin 和 \end{axis} 问题](https://linux22.com/image/469802/%5Cbegin%20%E5%92%8C%20%5Cend%7Baxis%7D%20%E9%97%AE%E9%A2%98.png)
我收到以下错误信息:
! Missing } inserted.
<inserted text>
}
l.47 \end{axis}
我正在使用最新版本的 Tex。提前致谢!
\documentclass[a4paper,12pt]{article}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{tikz}
\usetikzlibrary {shapes.geometric, arrows}
\usepackage[margin=0.25in]{geometry}
\usepackage{pgfplots}
\pgfplotsset{width=10cm,compat=1.9}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
axis equal,
axis lines=middle,
xlabel={$x$},
ylabel={$y$},
xmin=-1,
xmax=11,
ymin=-1,
ymax=11,
xtick={0,5,10},
ytick={0,5,10},
xticklabels={0,5,10},
yticklabels={0,5,10},
grid=both,
major grid style={line width=0.2pt,draw=gray!50},
minor grid style={line width=0.1pt,draw=gray!20},
width=8cm,
height=8cm,
legend style={at={(0.5,1.02)},anchor=south},
legend cell align=left,
legend entries={Achse nach oben, Achse nach unten links, Achse nach unten rechts},
]
% Achse nach oben
\draw[thick,blue,-stealth] (axis cs:5,5) -- (axis cs:5,10.5);
% Achse nach unten links
\draw[thick,red,-stealth] (axis cs:5,5) -- (axis cs:0,0);
% Achse nach unten rechts
\draw[thick,green,-stealth] (axis cs:5,5) -- (axis cs:10,0);
\end{axis}
\end{tikzpicture}
\end{document}
答案1
改编
- 注释掉导致错误的选项
legend entries
,因为您没有添加任何图\addplot
。
代码
\documentclass[a4paper,12pt]{article}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{tikz}
\usetikzlibrary {shapes.geometric, arrows}
\usepackage[margin=0.25in]{geometry}
\usepackage{pgfplots}
\pgfplotsset{width=10cm,compat=1.9}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
axis equal,
axis lines=middle,
xlabel={$x$},
ylabel={$y$},
xmin=-1,
xmax=11,
ymin=-1,
ymax=11,
xtick={0,5,10},
ytick={0,5,10},
xticklabels={0,5,10},
yticklabels={0,5,10},
grid=both,
major grid style={line width=0.2pt,draw=gray!50},
minor grid style={line width=0.1pt,draw=gray!20},
width=8cm,
height=8cm,
legend style={at={(0.5,1.02)},anchor=south},
legend cell align=left,
%legend entries={Achse nach oben, Achse nach unten links, Achse nach unten rechts}, % <---
]
% Achse nach oben
\draw[thick,blue,-stealth] (axis cs:5,5) -- (axis cs:5,10.5);
% Achse nach unten links
\draw[thick,red,-stealth] (axis cs:5,5) -- (axis cs:0,0);
% Achse nach unten rechts
\draw[thick,green,-stealth] (axis cs:5,5) -- (axis cs:10,0);
\end{axis}
\end{tikzpicture}
\end{document}