I have two TikZ drawings I would like to combine. One I have drawn 'in 2D', the other I have drawn 'in 3D'. My real drawings are very complicated, but I have created a minimal example to illustrate what I'm trying to do.
Minimal 2D example
\documentclass[margin=5pt]{standalone}
\usepackage{tikz}
\usepackage{graphicx}
\begin{document}
\begin{tikzpicture}
\draw[fill={rgb:blue,1;white,5}] (0,0) -- (2,0) -- (2,2) -- (0,2) -- cycle;
\node at (1,1) (ImageA) {\includegraphics[width=1.5cm]{example-image-a}};
\coordinate (Origin) at (0,0);
\draw[fill=red] (Origin) circle (0.05cm);
\node at (3,2) (Label) {Hello!};
\draw[->] (Label) -- (ImageA);
\end{tikzpicture}
\end{document}
Minimal 3D example
\documentclass[margin=5pt]{standalone}
\usepackage{tikz}
\usepackage{graphicx}
\begin{document}
\begin{tikzpicture}[y={(-1cm,0.5cm)},x={(1cm,0.5cm)}, z={(0cm,1cm)}]
\draw[fill={rgb:red,1;white,5}] (0,0,0) -- (3,0,0) -- (3,2,0) -- (0,2,0) -- cycle;
\end{tikzpicture}
\end{document}
What I want the combined drawing to look like:
Is there an easy way to achieve this? My real 2D drawing is really complicated and having to manually re-code every element to make it work in my 3D drawing would be very hard work I feel. Similarly, my 3D drawing is really complicated and I don't want to have to re-code that.
I was hoping there is some easy way to do this. For example, could I select a new origin for my 2D drawing in the 3D drawing, and it re-adjusts my existing 2D code automatically?