# 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 .
#
# Copyright(C) 2013-2019 Max-Planck-Society
#
# NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
import numpy as np
from .structured_domain import StructuredDomain
class DOFSpace(StructuredDomain):
"""Generic degree-of-freedom space. It is defined as the domain of some
DOFDistributor.
Its entries represent the underlying degrees of freedom of some other
space, according to the dofdex.
Parameters
----------
dof_weights: 1-D numpy array
A numpy array containing the multiplicity of each individual degree of
freedom.
"""
_needed_for_hash = ["_dvol"]
def __init__(self, dof_weights):
self._dvol = tuple(dof_weights)
@property
def harmonic(self):
return False
@property
def shape(self):
return (len(self._dvol),)
@property
def size(self):
return len(self._dvol)
@property
def scalar_dvol(self):
return None
@property
def dvol(self):
return np.array(self._dvol)
def __repr__(self):
return 'this is a dof space'