Source code for pymor.parameters.interfaces

# This file is part of the pyMOR project (
# Copyright 2013-2019 pyMOR developers and contributors. All rights reserved.
# License: BSD 2-Clause License (

from numbers import Number

from pymor.core.interfaces import ImmutableInterface, abstractmethod
from pymor.parameters.base import Parametric

[docs]class ParameterSpaceInterface(ImmutableInterface): """Interface for |Parameter| spaces. Attributes ---------- parameter_type |ParameterType| of the space. """ parameter_type = None
[docs] @abstractmethod def contains(self, mu): """`True` if `mu` is contained in the space.""" pass
[docs]class ParameterFunctionalInterface(ImmutableInterface, Parametric): """Interface for |Parameter| functionals. A parameter functional is simply a function mapping a |Parameter| to a number. """
[docs] @abstractmethod def evaluate(self, mu=None): """Evaluate the functional for the given |Parameter| `mu`.""" pass
[docs] @abstractmethod def d_mu(self, component, index=()): """Return the functionals's derivative with respect to an index of a parameter component. Parameters ---------- component Parameter component index index in the parameter component Returns ------- New |Parameter| functional representing the partial derivative. """ pass
[docs] def __call__(self, mu=None): return self.evaluate(mu)
def __mul__(self, other): from pymor.parameters.functionals import ProductParameterFunctional if not isinstance(other, (Number, ParameterFunctionalInterface)): return NotImplemented return ProductParameterFunctional([self, other]) __rmul__ = __mul__ def __neg__(self): return self * (-1.) def _check_and_parse_input(self, component, index): # check whether component is in parameter_type if component not in self.parameter_type: return False, None # check whether index has the correct shape if isinstance(index, Number): index = (index,) index = tuple(index) for idx in index: assert isinstance(idx, Number) shape = self.parameter_type[component] for i,idx in enumerate(index): assert idx < shape[i], 'wrong input `index` given' return True, index