\documentclass[a4paper,draft]{amsart}
\usepackage{epic,eepic}
\usepackage{bm,color}
\newcommand{\Line}[5]{\put(#1,#2){\line(#3,#4){#5}}}
\newcommand{\spot}[5]{\put(#1,#2){\makebox(0,0)[{#3}{#4}]{#5}}}
\begin{document}
\begin{figure}[htbp]
  \begin{center}
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    \caption{The stereographic projection of $\bm{sd}(\dot{\Delta}_3)$ from the vertex 0}
    \label{fig:orp2}
  \end{center}
\end{figure}

\end{document}
