def __init__(self, name, N=<NUM_LIT>):
self.name = name<EOL>self.N = N<EOL>self._rgba_bad = (<NUM_LIT:0.0>, <NUM_LIT:0.0>, <NUM_LIT:0.0>, <NUM_LIT:0.0>) <EOL>self._rgba_under = None<EOL>self._rgba_over = None<EOL>self._i_under = N<EOL>self._i_over = N+<NUM_LIT:1><EOL>self._i_bad = N+<NUM_LIT:2><EOL>self._isinit = False<EOL>
Public class attributes:
    :attr:`N` : number of rgb quantization levels
    :attr:`name` : name of colormap