def SSLatt2text(SSGCen):
    """Lattice centering vectors to text"""
    lattTxt = ''
    lattDir = {(4): '1/3', (6): '1/2', (8): '2/3', (0): '0'}
    for vec in SSGCen:
        lattTxt += ' '
        for item in vec:
            lattTxt += '%s,' % lattDir[int(item * 12)]
        lattTxt = lattTxt.rstrip(',')
        lattTxt += ';'
    lattTxt = lattTxt.rstrip(';').lstrip(' ')
    return lattTxt
