如何绘制带有虚线隐藏线的幻灯片

Question

我尝试绘制如图所示的隐藏线，但我不知道该怎么做。请帮我解决这个问题，我尝试了这个代码

\begin{document}
\begin{tikzpicture}[z={(3.85mm, -3.85mm)}]
\pgfmathsetmacro{\cubex}{1.5}
\pgfmathsetmacro{\cubey}{1.5}
\pgfmathsetmacro{\cubez}{1.5}
\foreach \x/\j in {0/blue,2.3/blue,4.3/blue} 
\draw[\j] (\x,0,0) -- ++(0,\cubey,0) -- ++(0,0,\cubez) -- ++(0,-\cubey,0) -- cycle;
\end{tikzpicture}

Answer 1

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[z={(3.85mm, -3.85mm)}]
\pgfmathsetmacro{\cubex}{1.5}
\pgfmathsetmacro{\cubey}{1.5}
\pgfmathsetmacro{\cubez}{1.5}
\foreach \x/\j in {0/blue,2.3/blue,4.3/blue} {
\draw[\j] (\x,0,0) -- ++(0,0,\cubez) -- ++(0,-\cubey,0) ;
\draw[dashed,\j] (\x,0,0) -- ++(0,-\cubey,0) -- ++(0,0,\cubez);
}
\end{tikzpicture}
\end{document}