# NIFTy
# Copyright (C) 2017 Theo Steininger
#
# Author: Theo Steininger
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
import abc
from keepers import Loggable
class Transformation(Loggable, object):
"""
A generic transformation which defines a static check_codomain
method for all transforms.
"""
__metaclass__ = abc.ABCMeta
def __init__(self, domain, codomain, module=None):
if codomain is None:
self.domain = domain
self.codomain = self.get_codomain(domain)
else:
self.check_codomain(domain, codomain)
self.domain = domain
self.codomain = codomain
@classmethod
def get_codomain(cls, domain, dtype=None, zerocenter=None):
raise NotImplementedError
@staticmethod
def check_codomain(domain, codomain):
raise NotImplementedError
def transform(self, val, axes=None, **kwargs):
raise NotImplementedError