答案1
structmech
包可以提供帮助
\documentclass[tikz, border=1mm]{standalone}
\usepackage{structmech}
\begin{document}
\begin{tikzpicture}
\setstructmech{fill=gray}
\UDL{0,0}{5,0}
\HingeSupport{0,0}
\HingeSupport{5,0}
\end{tikzpicture}
\end{document}
structmech
包可以提供帮助
\documentclass[tikz, border=1mm]{standalone}
\usepackage{structmech}
\begin{document}
\begin{tikzpicture}
\setstructmech{fill=gray}
\UDL{0,0}{5,0}
\HingeSupport{0,0}
\HingeSupport{5,0}
\end{tikzpicture}
\end{document}