我在 Matlab 中创建了一个最小的工作示例：
[x,y] = meshgrid(-2:0.1:2,-2:0.1:2);
fx = x.*y;
fy = x.*y;
figure
quiver(x,y,fx,fy)
matlab2tikz('plot.tex');
这很有效并创建了 plot.tex 文档。
所以现在我将文件包含在我的文件中
\documentclass{article}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\pgfplotsset{plot coordinates/math parser=false}
\newlength\figureheight
\newlength\figurewidth
\usetikzlibrary{arrows.meta}
\begin{document}
\input{plot.tex}
\end{document}
编译时出现以下错误：
(plot.tex
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <7> on input line 1710.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <5> on input line 1710.
! Package PGF Math Error: You've asked me to divide `0.0' by `0.0', but I canno
t divide any number by `0.0'.
See the PGF Math package documentation for explanation.
Type H <return> for immediate help.
...
l.1710 \end{axis}
This error message was generated by an \errmessage
command, so I can't give any explicit help.
Pretend that you're Hercule Poirot: Examine all clues,
and deduce the truth by order and method.
! Arithmetic overflow.
\pgfmathdivide@ ...\pgfmath@x by\c@pgfmath@counta
\else \ifdim 0pt>\pgfmath@...
l.1710 \end{axis}
I can't carry out that multiplication or division,
since the result is out of range.
! Undefined control sequence.
\pgfplotsaxisvisphasetransformpointmeta ...@trafo
{\pgfplotspointmeta }\let ...
l.1710 \end{axis}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
! Undefined control sequence.
\pgfplotsaxisvisphasetransformpointmeta ...ntmeta
}\let \pgfplotspointmetatr...
l.1710 \end{axis}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
)
我不知道为什么会发生这种情况。
plot.tex 文件的链接是https://pastebin.com/J5kvy0rm
我非常感谢你的帮助:)
编辑
简化的 MWE 可重现错误：
\documentclass{article}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\pgfplotsset{plot coordinates/math parser=false}
\newlength\figureheight
\newlength\figurewidth
\usetikzlibrary{arrows.meta}
\definecolor{mycolor1}{rgb}{0.00000,0.44700,0.74100}%
\begin{document}
\begin{tikzpicture}
\begin{axis}[%
width=6.028in,
height=4.754in,
at={(1.011in,0.642in)},
scale only axis,
xmin=-2.5,
xmax=2.5,
ymin=-2.5,
ymax=2.5,
axis background/.style={fill=white},
legend style={legend cell align=left, align=left, draw=white!15!black}
]
\addplot[-Straight Barb, color=mycolor1, point meta={sqrt((\thisrow{u})^2+(\thisrow{v})^2)}, point meta min=0, quiver={u=\thisrow{u}, v=\thisrow{v}, every arrow/.append style={-{Straight Barb[angle'=18.263, scale={10/1000*\pgfplotspointmetatransformed}]}}}]
table[row sep=crcr] {%
x y u v\\
-2 -2 0.0878048780487805 0.0878048780487805\\
-2 -1.9 0.0834146341463415 0.0834146341463415\\
-2 -1.8 0.0790243902439025 0.0790243902439025\\
-2 -1.7 0.0746341463414634 0.0746341463414634\\
-2 -1.6 0.0702439024390244 0.0702439024390244\\
-2 -1.5 0.0658536585365854 0.0658536585365854\\
-2 -1.4 0.0614634146341464 0.0614634146341464\\
};
\addlegendentry{data1}
\end{axis}
\end{tikzpicture}%
\end{document}
编辑
