def add_set_of_points(self, points):
        """
        Add a new set of points to the existing one without removing it.
        
        :param points: Points to be added.
        :type points: ndarray (shape=(N, 3))
        :returns: None
        """
        self.set_of_points = np.concatenate((self.set_of_points, points))
def add_set_of_points ( self , points ) : self . set_of_points = np . concatenate ( ( self . set_of_points , points ) )
Add a new set of points to the existing one without removing it.
        
        :param points: Points to be added.
        :type points: ndarray (shape=(N, 3))
        :returns: None