Rotating a point cloud fails

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I'm attempting a rotate a point cloud that is defined in the attachment 'point_cloud.mat'. The points are 32 points equidistant on the surface of a unit sphere.
% I'm attemping to rotate the point cloud around the three elementary rotation axes simultaneously:
for x=1:360
Rx = [1 0 0; 0 cosd(x) -sind(x); 0 sind(x) cosd(x)];
Ry = [cosd(x) 0 sind(x); 0 1 0; -sind(x) 0 cosd(x)];
Rz = [cosd(x) -sind(x) 0; sind(x) cosd(x) 0; 0 0 1];
rotation_mat = Rx*Ry*Rz;
V = rotation_mat*[V1(:,1) V1(:,2) V1(:,2)]'; % rotate data
h = scatter3(V(1,:)',V(2,:)',V(3,:)','g');
hold on
However, it looks the projection of the 3d point cloud on a 2d surface is being rotated not the point cloud.. ANy ideas?

Accepted Answer

Bruno Luong
Bruno Luong on 2 Sep 2022
The last index of this line should be 3
V = rotation_mat*[V1(:,1) V1(:,2) V1(:,2)]'

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