def shuffle_points(batch_data):
    """Shuffle orders of points in each point cloud -- changes FPS behavior.
    Use the same shuffling idx for the entire batch.
    Input:
        BxNxC array
    Output:
        BxNxC array
    """
    idx = np.arange(batch_data.shape[1])
    np.random.shuffle(idx)
    return batch_data[:, idx, :]
Shuffle orders of points in each point cloud -- changes FPS behavior.
    Use the same shuffling idx for the entire batch.
    Input:
        BxNxC array
    Output:
        BxNxC array
    
examples/pytorch/pointcloud/pointnet/provider.py