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Martin Reinecke authored
This reverts commit fc6f126c.
Martin Reinecke authoredThis reverts commit fc6f126c.
test_misc.py 4.81 KiB
# 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 <http://www.gnu.org/licenses/>.
import unittest
import numpy as np
from numpy.testing import assert_,\
assert_equal, \
assert_allclose
from nifty.config import dependency_injector as di
from nifty import Field,\
RGSpace,\
LMSpace,\
GLSpace,\
FieldArray, \
RGRGTransformation, \
LMGLTransformation, \
LMHPTransformation, \
FFTOperator
from nose.plugins.skip import SkipTest
def _harmonic_type(itp):
otp=itp
if otp==np.float64:
otp=np.complex128
elif otp==np.float32:
otp=np.complex64
return otp
class Misc_Tests(unittest.TestCase):
def test_RG_distance_1D(self):
for dim1 in [10,11]:
for zc1 in [False,True]:
for d in [0.1,1,3.7]:
foo = RGSpace([dim1],zerocenter=zc1)
res = foo.get_distance_array('not')
assert_equal(res[zc1*(dim1//2)],0.)
def test_RG_distance_2D(self):
for dim1 in [10,11]:
for dim2 in [9,28]:
for zc1 in [False,True]:
for zc2 in [False,True]:
for d in [0.1,1,3.7]:
foo = RGSpace([dim1,dim2],zerocenter=[zc1,zc2])
res = foo.get_distance_array('not')
assert_equal(res[zc1*(dim1//2),zc2*(dim2//2)],0.)
def test_fft1D(self):
for dim1 in [10,11]:
for zc1 in [False,True]:
for zc2 in [False,True]:
for d in [0.1,1,3.7]:
for itp in [np.float64,np.complex128,np.float32,np.complex64]:
a = RGSpace(dim1, zerocenter=zc1, distances=d)
b = RGRGTransformation.get_codomain(a, zerocenter=zc2)
fft = FFTOperator(domain=a, target=b, domain_dtype=itp, target_dtype=_harmonic_type(itp))
inp = Field.from_random(domain=a,random_type='normal',std=7,mean=3,dtype=itp)
out = fft.inverse_times(fft.times(inp))
assert_allclose(inp.val, out.val)
def test_fft2D(self):
for dim1 in [10,11]:
for dim2 in [9,12]:
for zc1 in [False,True]:
for zc2 in [False,True]:
for zc3 in [False,True]:
for zc4 in [False,True]:
for d in [0.1,1,3.7]:
for itp in [np.float64,np.complex128,np.float32,np.complex64]:
a = RGSpace([dim1,dim2], zerocenter=[zc1,zc2], distances=d)
b = RGRGTransformation.get_codomain(a, zerocenter=[zc3,zc4])
fft = FFTOperator(domain=a, target=b, domain_dtype=itp, target_dtype=_harmonic_type(itp))
inp = Field.from_random(domain=a,random_type='normal',std=7,mean=3,dtype=itp)
out = fft.inverse_times(fft.times(inp))
assert_allclose(inp.val, out.val)
def test_sht(self):
if 'pyHealpix' not in di:
raise SkipTest
for lm in [0,3,6,11,30]:
for tp in [np.float64,np.complex128,np.float32,np.complex64]:
a = LMSpace(lmax=lm)
b = LMGLTransformation.get_codomain(a)
fft = FFTOperator(domain=a, target=b, domain_dtype=tp, target_dtype=tp)
inp = Field.from_random(domain=a,random_type='normal',std=7,mean=3,dtype=tp)
out = fft.inverse_times(fft.times(inp))
assert_allclose(inp.val, out.val)
def test_sht2(self):
if 'pyHealpix' not in di:
raise SkipTest
for lm in [128,256]:
for tp in [np.float64,np.complex128,np.float32,np.complex64]:
a = LMSpace(lmax=lm)
b = LMHPTransformation.get_codomain(a)
fft = FFTOperator(domain=a, target=b, domain_dtype=tp, target_dtype=tp)
inp = Field.from_random(domain=a,random_type='normal',std=1,mean=0,dtype=tp)
out = fft.inverse_times(fft.times(inp))
assert_allclose(inp.val, out.val,rtol=1e-3,atol=1e-3)