Basically, I want to make 3 concentric spheres with a portion of them being open (very similar to what is shown in the iamge).
I only know how to make concentric-like circles in Tikz, can someone help with making one similar to the image I posted?
Thanks!
Here is my starting code:
\documentclass[11pt]{article}
\usepackage{tikz}
\usepackage{pgfplots}
\begin{document}
\begin{figure}[h]
\centering
\begin{tikzpicture}[scale=1.4]
\footnotesize
\coordinate (A) at (2,0);
\coordinate (B) at (5,0);
\coordinate (C) at (6,0);
%\coordinate (endt) at (12,0);
%draw the line
\draw[-, very thick] (A) -- (C);
\fill (A) circle (3pt) node[left=2pt] {A};
\fill (B) circle (3pt) node[above=2pt] {B};
\fill (C) circle (3pt) node[right=2pt] {C};
\shade[ball color=blue!10!white,opacity=0.20] (A) circle (4cm);
\draw[dashed] (2,4) arc (90:-90:2cm and 4cm);
\draw[thick] (2,4) arc (90:270:2cm and 4cm);
\draw[thick] (A) circle (4cm);
%smaller circle
\shade[ball color=blue!20!white,opacity=0.20] (A) circle (3cm);
\draw[thick] (A) circle (3cm);
\draw[dashed] (2,3) arc (90:-90:1.5cm and 3cm);
\draw[thick] (2,3) arc (90:270:1.5cm and 3cm);
\end{tikzpicture}
\caption{Visualization of spatial distribution of A, C, and \B.}
\end{figure}
\end{document}
