Hi Andrew,
I understand that you desire to overlay a spherical surface on a graphics object. As per my understanding of the your requirements, I believe that using volshow to render a spherical surface and setting Parent = viewer would solve the purpose. I am aware that spherical surface can be achieved using sphere and surf function, yet in such a case overlay might not be possible as the MATLAB would not allow you to pass in viewer3d handle as parent to surf function and will result into an error which is as follows
Error using matlab.graphics.chart.primitive.Surface
Surface cannot be a child of Viewer3D.
I have detailed the possible workaround in a MATLAB script by considering a random 100x100x100 dataset for DoseCube. Tweak it using your very own data and try it out. Here is the code snippet for your reference
DoseCube = rand(100,100,100)*100;
f1 = uifigure('Name','Dose 2 Cell');
g1 = uigridlayout(f1, [1,1], Padding=[0 0 0 0]);
viewer = viewer3d(g1);
viewer.BackgroundGradient="off";
viewer.BackgroundColor="white";
doseV = volshow(DoseCube,Parent = viewer);
doseV.Colormap = jet;
r = 5; % radius of the sphere
coordRange = -10:0.1:10;
% create a grid of points in 3D space
[x, y, z] = meshgrid(coordRange, coordRange, coordRange);
% calculate the distance from each point to the sphere's center
distance = sqrt(x.^2 + y.^2 + z.^2);
% create a binary mask for the sphere
sphere_mask = distance <= r;
% visualize the spherical surface using volshow
volshow(sphere_mask, Parent = viewer);
I hope this helps.
