def get_other_entity(front,constellation) :
    """
    Get a list of all point associated to all other entities except for
    entities of the same structure

    .. warning:: Does not yield desired results when searching for "own" \
       entities, that is, all other components of the same entity.    

    Parameters
    ----------
    front : :class:`front.Front`
       To specify "self" in contrast to "others"
    constellation : dict of list of np.array
       A "point-only" constellation. That is, entries in this dict are \
       lists of 3D np.array vectors

    Returns
    -------
    entities : list
       List contains 3D positions of all structure except for "self".
    """
    entity_name = front.entity_name
    entities = []
    for key in constellation.keys() :
        if not key.startswith(entity_name):
            entities = entities + constellation[key]
    return entities