How to get brushed data point index from Plot?

The following linked post was incredibly helpful for me but I would like to know how to obtain the indicies of the brushed data. I'm not sure why, but the size of Pos and the size of brush are different. I want to obtain the indicies in Pos of the brushed data. Thank you.

https://www.mathworks.com/matlabcentral/answers/505340-how-to-get-brushed-data-point-index-or-coordinate-from-a-3d-plot

Handle = plot3(Pos(:,1),Pos(:,2),Pos(:,3), 'o');
axis equal;
view(0,90)
brush on

Select the required data and run the following to get the brushed points:

xd = get(Handle, 'XData');
yd = get(Handle, 'YData');
zd = get(Handle, 'ZData');
brush = get(Handle, 'BrushData');
brushed_x = xd(logical(brush));
brushed_y = yd(logical(brush));
brushed_z = zd(logical(brush));
figure, plot3(brushed_x, brushed_y, brushed_z, 'o');

Answer 1

[Adam Danz]

Continuing from your code...

brushedPoints = [brushed_x(:), brushed_y(:), brushed_z(:)];
dist = pdist2([xd(:),yd(:),zd(:)], brushedPoints);
[~, idx] = min(dist)

idx(i) is the index for brushedPoints(i,:).