def _load_dists(self, dist_l, dist_r):
'''Load the distortion files into :attr:`dists`
Parameters
----------
dist_l, dist_r : string
Distortion file for the left and right spectrograph; at least one
of them must be provided
'''
if not dist_r and not dist_l:
raise ReconstructValueError('A distortion is needed to'
' quickreconstruct an image')
if dist_l:
self.dists['L'] = distortion.Distortion(dist_l)
if dist_r:
self.dists['R'] = distortion.Distortion(dist_r)
def test_single_fiberprofile(self, datadir, fmod):
if fmod.version >= 22:
D = dist.Distortion(datadir.join('distortion_17.dist').strpath)
assert abs(fmod.get_single_fiberprofile(100, 200, D) -
0.499776) < testprecision
assert abs(fmod.get_single_fiberprofile(1000, 1500, D) -
0.549257) < testprecision
assert abs(fmod.get_single_fiberprofile(1000, 3000, D) -
0.) < testprecision
def test_single_fiberflux(self, datadir, fmod):
if fmod.version >= 22:
D = dist.Distortion(datadir.join('distortion_17.dist').strpath)
assert abs(fmod.get_single_fiberflux(100, 200, D) -
0.532356) < testprecision
assert abs(fmod.get_single_fiberflux(1000, 1500, D) -
0.59453) < testprecision
assert abs(fmod.get_single_fiberflux(1000, 3000, D) -
0.) < testprecision
def test_cumulative_fiberflux(self, datadir, fmod):
if fmod.version >= 22:
D = dist.Distortion(datadir.join('distortion_17.dist').strpath)
assert abs(fmod.get_cumulative_fiberflux(100, 200, D) -
0.579471) < testprecision
assert abs(fmod.get_cumulative_fiberflux(1000, 1500, D) -
0.59504) < testprecision
assert abs(fmod.get_cumulative_fiberflux(1000, 3000, D) -
0.) < testprecision
def test_write(self, dist, tmpdir):
if dist.version >= 14:
dname = tmpdir.strpath + '/test.dist'
dist.writeto(dname)
D = distortion.Distortion(dname)
assert dist.version == D.version
assert np.isclose(dist.maxx, D.maxx)
assert np.isclose(dist.wave_par_.data, D.wave_par_.data).all()
assert np.isclose(dist.reference_w_.data,
D.reference_w_.data).all()
assert np.isclose(dist.reference_wavelength_,
D.reference_wavelength_)
def test_single_fiberflux_fiber(self, datadir, fmod):
if fmod.version >= 22:
D = dist.Distortion(datadir.join('distortion_17.dist').strpath)
assert abs(
fmod.get_single_fiberflux_fiber(100, 200, 204, D) -
0.53198) < testprecision
assert abs(
fmod.get_single_fiberflux_fiber(1000, 1500, 62, D) -
0.59448) < testprecision
assert abs(
fmod.get_single_fiberflux_fiber(100, 200, 203, D) -
0.00018) < testprecision
assert abs(
fmod.get_single_fiberflux_fiber(1000, 1500, 63, D) -
0.00031) < testprecision
assert abs(
fmod.get_single_fiberflux_fiber(1000, 3000, 63, D) -
0.0) < testprecision
def test_single_fiberprofile_fiber(self, datadir, fmod):
if fmod.version >= 22:
D = dist.Distortion(datadir.join('distortion_17.dist').strpath)
assert abs(
fmod.get_single_fiberprofile_fiber(100, 200, 204, D) -
0.499428) < testprecision
assert abs(
fmod.get_single_fiberprofile_fiber(1000, 1500, 62, D) -
0.549209) < testprecision
assert abs(
fmod.get_single_fiberprofile_fiber(100, 200, 203, D) -
0.000167601) < testprecision
assert abs(
fmod.get_single_fiberprofile_fiber(1000, 1500, 63, D) -
0.000292374) < testprecision
assert abs(
fmod.get_single_fiberprofile_fiber(1000, 3000, 63, D) -
0.0) < testprecision
def test_wrong_version(self, datadir):
with pytest.raises(IOError):
distortion.Distortion(datadir.join('distortion_12.dist').strpath)
def dist(datadir, request):
'return a distortion object'
return distortion.Distortion(datadir.join(request.param).strpath)