# Copyright (c) 2017 Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
# Copyright (c) 2017 Centre national de la recherche scientifique (CNRS)
# Copyright (c) 2017 Igor Krivenko
# Copyright (c) 2020 Simons Foundation
#
# 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 may obtain a copy of the License at
# https:#www.gnu.org/licenses/gpl-3.0.txt
#
# Authors: Michel Ferrero, Igor Krivenko, Olivier Parcollet, Nils Wentzell
import itertools
from functools import reduce # Valid in Python 2.6+, required in Python 3
import operator
import numpy as np
[docs]
def call_factory_from_dict(cl, name, l):
return cl.__factory_from_dict__(name, l)
[docs]
class MeshProduct:
"""
The cartesian Mesh product
Parameters
----------
mlist: list
The list of Meshes in the MeshProduct
"""
[docs]
def __init__(self, *mlist):
self._mlist = mlist
self._hdf5_data_scheme_ = 'MeshProduct'
@property
def components(self):
"""
A list of the meshes
"""
return self._mlist
[docs]
def size_of_components(self):
"""
A tuple with the size of the compomements
"""
return (len(x) for x in self._mlist)
def __getitem__(self, i):
return self._mlist[i]
@property
def rank(self):
return len(self._mlist)
# @property
# def size(self) :
# return len(self)
def __len__(self):
"""
Total number of points (product of size of components)
"""
return reduce(operator.mul, self.size_of_components(), 1)
def __eq__(self, other):
"""
Compare with another product mesh
"""
return self._mlist == other._mlist
def __iter__(self):
"""
The composite mesh point
"""
return itertools.product(*self._mlist)
[docs]
def copy(self):
"""
Deep copy
"""
return self.__class__(*[x.copy() for x in self._mlist])
[docs]
def copy_from(self, another):
"""
Deep copy
"""
assert self.rank == another.rank, "copy_from requires the same rank for meshes"
return self.__class__(*[x.copy_from(y) for x,y in zip(self._mlist, another._mlist)])
[docs]
def index_to_linear(self, idx) :
"""
"""
return (x.index_to_linear(i) for x,i in zip(self._mlist, idx))
def __repr__(self):
""" """
return "MeshProduct of :" + ', '.join(repr(x) for x in self._mlist)
def __str__(self):
""" """
return ', '.join(str(x) for x in self._mlist)
#----------------------------- IO -----------------------------------
def __reduce__(self):
return call_factory_from_dict, (self.__class__, "", self.__reduce_to_dict__())
def __reduce_to_dict__(self):
return dict (('MeshComponent%s'%i, m) for i,m in enumerate(self._mlist))
# @classmethod
# def __factory_from_dict__(cls, l):
# return cls(*l)
@classmethod
def __factory_from_dict__(cls, name, d):
return cls(*(d['MeshComponent%s'%i] for i in range(len(d)))) #.values())
#---------------------------------------------------------
from h5.formats import register_class
register_class (MeshProduct)