def get_existing_cut_indices(mesh):
    """
    Returns
    ----------
        list, int.
        The cut indices (data['cut']>0) that exist on the mesh vertices.
    """
    cut_indices = []
    for vkey, data in mesh.vertices(data=True):
        if data['cut'] > 0:
            if data['cut'] not in cut_indices:
                cut_indices.append(data['cut'])
    cut_indices = sorted(cut_indices)
    return cut_indices