我想绘制一个带有坐标系和箭头的透视立方体，以定义连续力学中的柯西应力张量。它应该看起来像这样：
该示例是按等距绘制的。我宁愿按透视图绘制。
希望你们能帮助我。谢谢！
诚挚的，克里斯
答案1
perspective以下是使用和库可以实现的功能的示例3d。要更改视角，只需更改3d view键中的角度即可。
\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{perspective}
\usetikzlibrary{3d}
\usetikzlibrary{arrows.meta}
\begin{document}
\begin{tikzpicture}[%
3d view = {15}{15}
]
\draw[-{Latex[scale = 0.7]}] (-4, -4, 0) -- (-3, -4, 0)
node[below] {\footnotesize$x$};
\draw[-{Latex[scale = 0.7]}] (-4, -4, 0) -- (-4, -3, 0)
node[right] {\footnotesize$y$};
\draw[-{Latex[scale = 0.7]}] (-4, -4, 0) -- (-4, -4, 1)
node[above] {\footnotesize$z$};
\begin{scope}[canvas is xz plane at y = -2]
\draw[
fill = lightgray
] (-2, -2) rectangle (2, 2);
\draw[-Latex] (-1.75, 0) -- (1.75, 0)
node[below left] {$\sigma_{xy}$};
\draw[-Latex] (0, -1.75) -- (0, 1.75)
node[below left] {$\sigma_{zy}$};
\end{scope}
\draw[Latex-] (0, -2, 0) -- (0, -3.5, 0)
node[left] {$\sigma_{yy}$};
\begin{scope}[canvas is yz plane at x = 2]
\draw[
fill = lightgray
] (-2, -2) rectangle (2, 2);
\draw[-Latex] (1.75, 0) -- (-1.75, 0)
node[below right] {$\sigma_{yx}$};
\draw[-Latex] (0, -1.75) -- (0, 1.75)
node[below right] {$\sigma_{zx}$};
\end{scope}
\draw[Latex-] (2, 0, 0) -- (3.5, 0, 0)
node[right] {$\sigma_{xx}$};
\begin{scope}[canvas is xy plane at z = 2]
\draw[
fill = lightgray
] (-2, -2) rectangle (2, 2);
\draw[-Latex] (-1.75, 0) -- (1.75, 0)
node[above]{$\sigma_{xz}$};
\draw[-Latex] (0, 1.75) -- (0, -1.75)
node[above left]{$\sigma_{yz}$};
\end{scope}
\draw[Latex-] (0, 0, 2) -- (0, 0, 3.5)
node[above] {$\sigma_{zz}$};
\end{tikzpicture}
\end{document}
得出的结果是：
然后，您可以查看TikZ 文档以适应特定需要。