def connect(r=0.75):
    """ Connector (circle) 
    
        Parameters
        ----------
        r: float
            Radius of connector circle
    """
    elem = {'name': 'CONNECT', 'extend': False, 'lblloc': 'center',
        'lblofst': 0, 'theta': -90}
    elem['anchors'] = {'W': [r, -r], 'E': [r, r], 'S': [2 * r, 0], 'N': [0, 0]}
    elem['move_cur'] = False
    elem['shapes'] = [{'shape': 'circle', 'center': [r, 0], 'radius': r}]
    return elem
