绘制一个圆锥体，并将投影投影到圆锥体中

Question

您可以帮我在 LaTex 上画出这个图形吗？

垂直的两条线以 mu bar 为中心向上展开，形成一个圆锥体。从 mu hat 投射到圆锥体的线是 T_12，从 mu bar 到 mu star 的距离是 T_01

非常感谢您的帮助

Answer 1

\documentclass[tikz,border=3.14mm]{standalone}
\usetikzlibrary{calc}
\usepackage{amsmath}
\begin{document}
\begin{tikzpicture}
\draw (0,0) coordinate (A) -- (4,6) coordinate[pos=0.7] (B);
\draw[dashed] (B) -- ($(B)!4.5cm!90:(A)$) coordinate (C) -- (A);
\fill (A) circle (2pt) node[below]{$\overline{\mu}$}
(B) circle (2pt) node[above]{$\mu^*$}
(C) circle (2pt) node[below]{$\widehat{\mu}$};
\draw (A) -- ($(A)!{veclen(4cm,6cm)}!90:(C)$);
\draw ($(B)!3.14mm!(C)$) coordinate(aux) -- ($(aux)!3.14mm!-90:(C)$) -- ($(B)!3.14mm!(A)$);
\draw[bend left=20] (A) to node[midway,fill=white]{$T_{01}$} (B)
(B) to node[midway,fill=white]{$T_{12}$} (C)
(C) to node[midway,fill=white]{$T_{02}$} (A);
\end{tikzpicture}
\end{document}