我想插入这 3 个 tikz，就像上面的图片一样，我使用 Matlab2Tikz，但我遇到了一个问题，我可以改变每个位置（at=），但这很难做到而且需要很长时间，这是由 matlab2tikz 生成的 3 个 tikz，我想使用输入（name.tex）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% First Tikz %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{tikzpicture}
\begin{axis}[%
width=6.458in,
height=2.002in,
at={(1.083in,3.476in)},
scale only axis,
xmin=0,
xmax=15,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur [m]},
ymin=20,
ymax=60,
ylabel style={font=\color{white!15!black}},
ylabel={$\text{Température [}^\circ\text{C]}$},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids,
legend style={at={(0.731,0.921)}, anchor=south west, legend cell align=left, align=left, draw=white!15!black}
]
\addplot [color=red, line width=2.0pt]
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};
\addlegendentry{Fluide chaud}
\addplot [color=blue, line width=2.0pt]
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};
\addlegendentry{Fluide Froid}
\end{axis}
\begin{axis}[%
width=2.789in,
height=2.002in,
at={(1.083in,0.667in)},
scale only axis,
xmin=0,
xmax=1,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur adimensionnelle [-]},
ymin=0,
ymax=1,
ylabel style={font=\color{white!15!black}},
ylabel={Température adimensionnelle [-]},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids
]
\addplot [color=red, line width=2.0pt, forget plot]
table[row sep=crcr]{%
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};
\end{axis}
\begin{axis}[%
width=8.333in,
height=6.25in,
at={(0in,6.25in)},
scale only axis,
clip=false,
xmin=0,
xmax=1,
ymin=0,
ymax=1,
axis line style={draw=none},
ticks=none,
axis x line*=bottom,
axis y line*=left
]
\node[align=center]
at (axis cs:0.5,-0.05) {\boldmath$(\dot{m}Cp)_{ch} < (\dot{m}Cp)_{fr}$};
\end{axis}
\begin{axis}[%
width=2.789in,
height=2.002in,
at={(4.753in,0.667in)},
scale only axis,
xmin=0,
xmax=1,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur adimensionnelle [-]},
ymin=0,
ymax=1,
ylabel style={font=\color{white!15!black}},
ylabel={Température adimensionnelle [-]},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids
]
\addplot [color=blue, line width=2.0pt, forget plot]
table[row sep=crcr]{%
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};
\end{axis}
\end{tikzpicture}%
%%%%%%%%%%%%%%%%%%%%%% Second Tikz %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{tikzpicture}
\begin{axis}[%
width=6.458in,
height=2.002in,
at={(1.083in,3.476in)},
scale only axis,
xmin=0,
xmax=15,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur [m]},
ymin=20,
ymax=60,
ylabel style={font=\color{white!15!black}},
ylabel={$\text{Température [}^\circ\text{C]}$},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids,
legend style={at={(0.731,0.921)}, anchor=south west, legend cell align=left, align=left, draw=white!15!black}
]
\addplot [color=red, line width=2.0pt]
table[row sep=crcr]{%
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};
\addlegendentry{Fluide chaud}
\addplot [color=blue, line width=2.0pt]
table[row sep=crcr]{%
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};
\addlegendentry{Fluide Froid}
\end{axis}
\begin{axis}[%
width=2.789in,
height=2.002in,
at={(1.083in,0.667in)},
scale only axis,
xmin=0,
xmax=1,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur adimensionnelle [-]},
ymin=0,
ymax=1,
ylabel style={font=\color{white!15!black}},
ylabel={Température adimensionnelle [-]},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids
]
\addplot [color=red, line width=2.0pt, forget plot]
table[row sep=crcr]{%
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};
\end{axis}
\begin{axis}[%
width=8.333in,
height=6.25in,
at={(0in,6.25in)},
scale only axis,
clip=false,
xmin=0,
xmax=1,
ymin=0,
ymax=1,
axis line style={draw=none},
ticks=none,
axis x line*=bottom,
axis y line*=left
]
\node[align=center]
at (axis cs:0.5,-0.05) {\boldmath$(\dot{m}Cp)_{ch} \simeq (\dot{m}Cp)_{fr}$};
\end{axis}
\begin{axis}[%
width=2.789in,
height=2.002in,
at={(4.753in,0.667in)},
scale only axis,
xmin=0,
xmax=1,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur adimensionnelle [-]},
ymin=0,
ymax=1,
ylabel style={font=\color{white!15!black}},
ylabel={Température adimensionnelle [-]},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids
]
\addplot [color=blue, line width=2.0pt, forget plot]
table[row sep=crcr]{%
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1 1\\
};
\end{axis}
\end{tikzpicture}%
%%%%%%%%%%%%%%%%%%%%%%%% Third Tikz %%%%%%%%%%%%%%%%%%%%%
\begin{tikzpicture}
\begin{axis}[%
width=6.458in,
height=2.002in,
at={(1.083in,3.476in)},
scale only axis,
xmin=0,
xmax=15,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur [m]},
ymin=20,
ymax=60,
ylabel style={font=\color{white!15!black}},
ylabel={$\text{Température [}^\circ\text{C]}$},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids,
legend style={at={(0.731,0.921)}, anchor=south west, legend cell align=left, align=left, draw=white!15!black}
]
\addplot [color=red, line width=2.0pt]
table[row sep=crcr]{%
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};
\addlegendentry{Fluide chaud}
\addplot [color=blue, line width=2.0pt]
table[row sep=crcr]{%
0 20\\
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6.6 31.091120196573\\
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};
\addlegendentry{Fluide Froid}
\end{axis}
\begin{axis}[%
width=2.789in,
height=2.002in,
at={(1.083in,0.667in)},
scale only axis,
xmin=0,
xmax=1,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur adimensionnelle [-]},
ymin=0,
ymax=1,
ylabel style={font=\color{white!15!black}},
ylabel={Température adimensionnelle [-]},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids
]
\addplot [color=red, line width=2.0pt, forget plot]
table[row sep=crcr]{%
0 -0\\
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0.92 0.957106584454481\\
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1 1\\
};
\end{axis}
\begin{axis}[%
width=8.333in,
height=6.25in,
at={(0in,6.25in)},
scale only axis,
clip=false,
xmin=0,
xmax=1,
ymin=0,
ymax=1,
axis line style={draw=none},
ticks=none,
axis x line*=bottom,
axis y line*=left
]
\node[align=center]
at (axis cs:0.5,-0.05) {\boldmath$(\dot{m}Cp)_{ch} > (\dot{m}Cp)_{fr}$};
\end{axis}
\begin{axis}[%
width=2.789in,
height=2.002in,
at={(4.753in,0.667in)},
scale only axis,
xmin=0,
xmax=1,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur adimensionnelle [-]},
ymin=0,
ymax=1,
ylabel style={font=\color{white!15!black}},
ylabel={Température adimensionnelle [-]},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids
]
\addplot [color=blue, line width=2.0pt, forget plot]
table[row sep=crcr]{%
0 0\\
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0.84 0.90998393998255\\
0.88 0.93452864615589\\
0.92 0.957199761707603\\
0.96 0.979522230176349\\
1 1\\
};
\end{axis}
\end{tikzpicture}%
答案1
为了将图调整为文本宽度的一半，我使用了adjustbox环境。对于子图的对齐和标题，我使用了包subcaption。您可以使用子图标签（例如）来引用它们。为了使所有内容居中以及整体标题，我使用了带有附加命令\label{fig:sub1}的正常环境。figure\centering
您的示例一开始无法编译，因此我不得不注释掉一些行。尤其是-enviromnents\node中的 s axis。此外，我还注释掉了height=6.25in, at={(0in,6.25in)}一些axis-environments，这似乎是使用 进行转换的（不需要的）产物matlab2tikz。
以下是代码
\documentclass{article}
\usepackage[french]{babel}
\usepackage{tikz, amsmath, pgfplots, adjustbox, subcaption, here}
\begin{document}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% First Tikz %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{figure}[H]
\centering
\begin{subfigure}{.49\textwidth}
\begin{adjustbox}{width=\textwidth}
\begin{tikzpicture}
\begin{axis}[%
width=6.458in,
height=2.002in,
at={(1.083in,3.476in)},
scale only axis,
xmin=0,
xmax=15,
xlabel style={font=\color{white!15!black}},
xlabel={Longueur [m]},
ymin=20,
ymax=60,
ylabel style={font=\color{white!15!black}},
ylabel={$\text{Température [}^\circ\text{C]}$},
axis background/.style={fill=white},
xmajorgrids,
ymajorgrids,
legend style={at={(0.731,0.921)}, anchor=south west, legend cell align=left, align=left, draw=white!15!black}
]
\addplot [color=red, line width=2.0pt]
table[row sep=crcr]{%
0 60\\
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3.6 51.1980468733326\\
4.2 50.0864145734772\\
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};
\addlegendentry{Fluide chaud};
\addplot [color=blue, line width=2.0pt]
table[row sep=crcr]{%
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scale only axis,
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% \node[align=center]
% at (axis cs:0.5,-0.05) {\boldmath$(\dot{m}Cp)_{ch} < (\dot{m}Cp)_{fr}$};
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height=2.002in,
at={(4.753in,0.667in)},
scale only axis,
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\caption{subfigure 1}
\label{fig:sub1}
\end{subfigure}
%%%%%%%%%%%%%%%%%%%%%% Second Tikz %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{subfigure}{.49\textwidth}
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% \node[align=center]
% at (axis cs:0.5,-0.05) {\boldmath$(\dot{m}Cp)_{ch} \simeq (\dot{m}Cp)_{fr}$};
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\begin{axis}[%
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at={(4.753in,0.667in)},
scale only axis,
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\caption{subfigure 2}
\label{fig:sub2}
\end{subfigure}
%%%%%%%%%%%%%%%%%%%%%%%% Third Tikz %%%%%%%%%%%%%%%%%%%%%
\begin{subfigure}{.49\textwidth}
\begin{adjustbox}{width=\textwidth}
\begin{tikzpicture}
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scale only axis,
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axis line style={draw=none},
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axis x line*=bottom,
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% \node[align=center]
% at (axis cs:0.5,-0.05) {\boldmath$(\dot{m}Cp)_{ch} > (\dot{m}Cp)_{fr}$};
\end{axis}
\begin{axis}[%
width=2.789in,
height=2.002in,
at={(4.753in,0.667in)},
scale only axis,
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\caption{subfigure 3}
\label{fig:sub3}
\end{subfigure}
\caption{All figures caption}
\label{fig:plots}
\end{figure}
\end{document}
结果
