%Qr = kron(eye(param.nbPoints), diag([0, 0, 0, 1E0, 1E0, 1E0])); %Precision matrix in relative coordinate frame (tool frame), by removing position constraint
Qr=kron(eye(param.nbPoints),diag([1,1,1,1,1,0]));%Precision matrix in relative coordinate frame (tool frame) (by removing orientation constraint on 3rd axis)
Qr=kron(eye(param.nbPoints),diag([1,1,1,1,1,0]));%Precision matrix in relative coordinate frame (tool frame), by removing orientation constraint on 3rd axis