\documentclass[preview]{standalone}
\usepackage{tikz}
\usetikzlibrary{3d}
\usepackage{fontsetup}
\begin{document}
\begin{tikzpicture}
\begin{scope}[dashed]
\draw (0,0,0) -- (3,0,0);
\draw (0,0,0) -- (0,3,0);
\draw (0,0,0) -- (0,0,3);
\begin{scope}[canvas is xy plane at z=0]
\draw (0,3) arc [start angle=90,end angle=0,radius=3];
\end{scope}
\begin{scope}[canvas is yz plane at x=0]
\draw (0,3) arc [start angle=90,end angle=0,radius=3];
\end{scope}
\begin{scope}[canvas is xz plane at y=0]
\draw (0,3) arc [start angle=90,end angle=0,radius=3];
\end{scope}
\begin{scope}[plane x={(0,0,1)}, plane y={({cos(30)}, {sin(30)}, 0)}, canvas is plane]
\draw[solid] (0,3) arc [start angle=90,end angle={acos(sqrt(3/7))},radius=3];
\draw (3,0) arc [start angle=0,end angle={acos(sqrt(3/7))},radius=3];
\end{scope}
\begin{scope}[plane x={({cos(45)},0,{sin(45)})}, plane y={(0, 1, 0)}, canvas is plane]
\draw (0,3) arc [start angle=90,end angle=0,radius=3];
\end{scope}
\end{scope}
\coordinate (c) at ({3*sqrt(3/7)},{3*sqrt(1/7)},{3*sqrt(3/7)}) ;
\draw (0,0,0) -- (c) node[above left] {\(C\)};
\end{tikzpicture}
\end{document}
问 请问如何画四省联考T12的图