def test_raise(self):
with self.assertRaises(ValueError):
lighModel = LightModel(light_model_list=['WRONG'])
with self.assertRaises(ValueError):
lighModel = LightModel(light_model_list=['UNIFORM'])
lighModel.light_3d(r=1, kwargs_list=[{'amp': 1}])
with self.assertRaises(ValueError):
lighModel = LightModel(light_model_list=['UNIFORM'])
lighModel.profile_type_list = ['WRONG']
lighModel.functions_split(x=0, y=0, kwargs_list=[{}])
with self.assertRaises(ValueError):
lighModel = LightModel(light_model_list=['UNIFORM'])
lighModel.profile_type_list = ['WRONG']
lighModel.num_param_linear(kwargs_list=[{}])
with self.assertRaises(ValueError):
lighModel = LightModel(light_model_list=['UNIFORM'])
lighModel.profile_type_list = ['WRONG']
lighModel.update_linear(param=[1], i=0, kwargs_list=[{}])
with self.assertRaises(ValueError):
lighModel = LightModel(light_model_list=['UNIFORM'])
lighModel.profile_type_list = ['WRONG']
lighModel.total_flux(kwargs_list=[{}])
class TestLightModel(object):
"""
tests the source model routines
"""
def setup(self):
self.light_model_list = [
'GAUSSIAN', 'MULTI_GAUSSIAN', 'SERSIC', 'SERSIC_ELLIPSE',
'CORE_SERSIC', 'SHAPELETS', 'HERNQUIST', 'HERNQUIST_ELLIPSE',
'PJAFFE', 'PJAFFE_ELLIPSE', 'UNIFORM', 'POWER_LAW', 'NIE',
'INTERPOL', 'SHAPELETS_POLAR_EXP'
]
phi_G, q = 0.5, 0.8
e1, e2 = param_util.phi_q2_ellipticity(phi_G, q)
self.kwargs = [
{
'amp': 1.,
'sigma_x': 1,
'sigma_y': 1.,
'center_x': 0,
'center_y': 0
}, # 'GAUSSIAN'
{
'amp': [1., 2],
'sigma': [1, 3],
'center_x': 0,
'center_y': 0
}, # 'MULTI_GAUSSIAN'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'center_x': 0,
'center_y': 0
}, # 'SERSIC'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
}, # 'SERSIC_ELLIPSE'
{
'amp': 1,
'R_sersic': 0.5,
'Re': 0.1,
'gamma': 2.,
'n_sersic': 1,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
},
# 'CORE_SERSIC'
{
'amp': [1, 1, 1],
'beta': 0.5,
'n_max': 1,
'center_x': 0,
'center_y': 0
}, # 'SHAPELETS'
{
'amp': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0
}, # 'HERNQUIST'
{
'amp': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0,
'e1': e1,
'e2': e2
}, # 'HERNQUIST_ELLIPSE'
{
'amp': 1,
'Ra': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0
}, # 'PJAFFE'
{
'amp': 1,
'Ra': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0,
'e1': e1,
'e2': e2
}, # 'PJAFFE_ELLIPSE'
{
'amp': 1
}, # 'UNIFORM'
{
'amp': 1.,
'gamma': 2.,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
}, # 'POWER_LAW'
{
'amp': .001,
'e1': 0,
'e2': 1.,
'center_x': 0,
'center_y': 0,
's_scale': 1.
}, # 'NIE'
{
'image': np.zeros((10, 10)),
'scale': 1,
'phi_G': 0,
'center_x': 0,
'center_y': 0
},
{
'amp': [1],
'n_max': 0,
'beta': 1,
'center_x': 0,
'center_y': 0
}
]
self.LightModel = LightModel(light_model_list=self.light_model_list)
def test_init(self):
model_list = [
'CORE_SERSIC', 'SHAPELETS', 'SHAPELETS_POLAR',
'SHAPELETS_POLAR_EXP', 'UNIFORM', 'CHAMELEON', 'DOUBLE_CHAMELEON',
'TRIPLE_CHAMELEON'
]
lightModel = LightModel(light_model_list=model_list)
assert len(lightModel.profile_type_list) == len(model_list)
def test_surface_brightness(self):
output = self.LightModel.surface_brightness(x=1,
y=1,
kwargs_list=self.kwargs)
npt.assert_almost_equal(output, 3.7065728131855824, decimal=6)
def test_surface_brightness_array(self):
output = self.LightModel.surface_brightness(x=[1],
y=[1],
kwargs_list=self.kwargs)
npt.assert_almost_equal(output[0], 3.7065728131855824, decimal=6)
def test_functions_split(self):
output = self.LightModel.functions_split(x=1.,
y=1.,
kwargs_list=self.kwargs)
npt.assert_almost_equal(output[0][0], 0.058549831524319168, decimal=6)
def test_re_normalize_flux(self):
kwargs_out = self.LightModel.re_normalize_flux(kwargs_list=self.kwargs,
norm_factor=2)
assert kwargs_out[0]['amp'] == 2 * self.kwargs[0]['amp']
def test_param_name_list(self):
param_name_list = self.LightModel.param_name_list()
assert len(self.light_model_list) == len(param_name_list)
def test_num_param_linear(self):
num = self.LightModel.num_param_linear(self.kwargs, list_return=False)
assert num == 18
num_list = self.LightModel.num_param_linear(self.kwargs,
list_return=True)
assert num_list[0] == 1
def test_update_linear(self):
response, n = self.LightModel.functions_split(1, 1, self.kwargs)
param = np.ones(n) * 2
kwargs_out, i = self.LightModel.update_linear(param,
i=0,
kwargs_list=self.kwargs)
assert i == n
assert kwargs_out[0]['amp'] == 2
def test_total_flux(self):
light_model_list = [
'SERSIC', 'SERSIC_ELLIPSE', 'INTERPOL', 'GAUSSIAN',
'GAUSSIAN_ELLIPSE', 'MULTI_GAUSSIAN', 'MULTI_GAUSSIAN_ELLIPSE'
]
kwargs_list = [
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'center_x': 0,
'center_y': 0
}, # 'SERSIC'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'e1': 0.1,
'e2': 0,
'center_x': 0,
'center_y': 0
}, # 'SERSIC_ELLIPSE'
{
'image': np.ones((10, 10)),
'scale': 1,
'phi_G': 0,
'center_x': 0,
'center_y': 0
}, # 'INTERPOL'
{
'amp': 2,
'sigma_x': 2,
'sigma_y': 1,
'center_x': 0,
'center_y': 0
}, # 'GAUSSIAN'
{
'amp': 2,
'sigma': 2,
'e1': 0.1,
'e2': 0,
'center_x': 0,
'center_y': 0
}, # 'GAUSSIAN_ELLIPSE'
{
'amp': [1, 1],
'sigma': [2, 1],
'center_x': 0,
'center_y': 0
}, # 'MULTI_GAUSSIAN'
{
'amp': [1, 1],
'sigma': [2, 1],
'e1': 0.1,
'e2': 0,
'center_x': 0,
'center_y': 0
} # 'MULTI_GAUSSIAN_ELLIPSE'
]
lightModel = LightModel(light_model_list=light_model_list)
total_flux_list = lightModel.total_flux(kwargs_list)
assert total_flux_list[2] == 100
assert total_flux_list[3] == 2
assert total_flux_list[4] == 2
assert total_flux_list[5] == 2
assert total_flux_list[6] == 2
total_flux_list = lightModel.total_flux(kwargs_list, norm=True)
assert total_flux_list[2] == 100
assert total_flux_list[3] == 1
assert total_flux_list[4] == 1
assert total_flux_list[5] == 2
assert total_flux_list[6] == 2
class TestLightModel(object):
"""
tests the source model routines
"""
def setup(self):
self.light_model_list = [
'GAUSSIAN', 'MULTI_GAUSSIAN', 'SERSIC', 'SERSIC_ELLIPSE',
'CORE_SERSIC', 'SHAPELETS', 'HERNQUIST', 'HERNQUIST_ELLIPSE',
'PJAFFE', 'PJAFFE_ELLIPSE', 'UNIFORM', 'POWER_LAW', 'NIE',
'INTERPOL', 'SHAPELETS_POLAR_EXP', 'ELLIPSOID'
]
phi_G, q = 0.5, 0.8
e1, e2 = param_util.phi_q2_ellipticity(phi_G, q)
self.kwargs = [
{
'amp': 1.,
'sigma': 1.,
'center_x': 0,
'center_y': 0
}, # 'GAUSSIAN'
{
'amp': [1., 2],
'sigma': [1, 3],
'center_x': 0,
'center_y': 0
}, # 'MULTI_GAUSSIAN'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'center_x': 0,
'center_y': 0
}, # 'SERSIC'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
}, # 'SERSIC_ELLIPSE'
{
'amp': 1,
'R_sersic': 0.5,
'Rb': 0.1,
'gamma': 2.,
'n_sersic': 1,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
},
# 'CORE_SERSIC'
{
'amp': [1, 1, 1],
'beta': 0.5,
'n_max': 1,
'center_x': 0,
'center_y': 0
}, # 'SHAPELETS'
{
'amp': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0
}, # 'HERNQUIST'
{
'amp': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0,
'e1': e1,
'e2': e2
}, # 'HERNQUIST_ELLIPSE'
{
'amp': 1,
'Ra': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0
}, # 'PJAFFE'
{
'amp': 1,
'Ra': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0,
'e1': e1,
'e2': e2
}, # 'PJAFFE_ELLIPSE'
{
'amp': 1
}, # 'UNIFORM'
{
'amp': 1.,
'gamma': 2.,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
}, # 'POWER_LAW'
{
'amp': .001,
'e1': 0,
'e2': 1.,
'center_x': 0,
'center_y': 0,
's_scale': 1.
}, # 'NIE'
{
'image': np.zeros((20, 5)),
'scale': 1,
'phi_G': 0,
'center_x': 0,
'center_y': 0
},
{
'amp': [1],
'n_max': 0,
'beta': 1,
'center_x': 0,
'center_y': 0
},
{
'amp': 1,
'radius': 1.,
'e1': 0,
'e2': 0.1,
'center_x': 0,
'center_y': 0
} # 'ELLIPSOID'
]
self.LightModel = LightModel(light_model_list=self.light_model_list)
def test_init(self):
model_list = [
'CORE_SERSIC', 'SHAPELETS', 'SHAPELETS_POLAR',
'SHAPELETS_POLAR_EXP', 'UNIFORM', 'CHAMELEON', 'DOUBLE_CHAMELEON',
'TRIPLE_CHAMELEON'
]
lightModel = LightModel(light_model_list=model_list)
assert len(lightModel.profile_type_list) == len(model_list)
def test_surface_brightness(self):
output = self.LightModel.surface_brightness(x=1.,
y=1.,
kwargs_list=self.kwargs)
npt.assert_almost_equal(output, 2.5886852663397137, decimal=6)
def test_surface_brightness_array(self):
output = self.LightModel.surface_brightness(x=[1],
y=[1],
kwargs_list=self.kwargs)
npt.assert_almost_equal(output[0], 2.5886852663397137, decimal=6)
def test_functions_split(self):
output = self.LightModel.functions_split(x=1.,
y=1.,
kwargs_list=self.kwargs)
npt.assert_almost_equal(output[0][0], 0.058549831524319168, decimal=6)
def test_param_name_list(self):
param_name_list = self.LightModel.param_name_list
assert len(self.light_model_list) == len(param_name_list)
def test_num_param_linear(self):
num = self.LightModel.num_param_linear(self.kwargs, list_return=False)
assert num == 19
num_list = self.LightModel.num_param_linear(self.kwargs,
list_return=True)
assert num_list[0] == 1
def test_update_linear(self):
response, n = self.LightModel.functions_split(1, 1, self.kwargs)
param = np.ones(n) * 2
kwargs_out, i = self.LightModel.update_linear(param,
i=0,
kwargs_list=self.kwargs)
assert i == n
assert kwargs_out[0]['amp'] == 2
def test_total_flux(self):
light_model_list = [
'SERSIC', 'SERSIC_ELLIPSE', 'INTERPOL', 'GAUSSIAN',
'GAUSSIAN_ELLIPSE', 'MULTI_GAUSSIAN', 'MULTI_GAUSSIAN_ELLIPSE'
]
kwargs_list = [
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'center_x': 0,
'center_y': 0
}, # 'SERSIC'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'e1': 0.1,
'e2': 0,
'center_x': 0,
'center_y': 0
}, # 'SERSIC_ELLIPSE'
{
'image': np.ones((20, 5)),
'scale': 1,
'phi_G': 0,
'center_x': 0,
'center_y': 0
}, # 'INTERPOL'
{
'amp': 2,
'sigma': 2,
'center_x': 0,
'center_y': 0
}, # 'GAUSSIAN'
{
'amp': 2,
'sigma': 2,
'e1': 0.1,
'e2': 0,
'center_x': 0,
'center_y': 0
}, # 'GAUSSIAN_ELLIPSE'
{
'amp': [1, 1],
'sigma': [2, 1],
'center_x': 0,
'center_y': 0
}, # 'MULTI_GAUSSIAN'
{
'amp': [1, 1],
'sigma': [2, 1],
'e1': 0.1,
'e2': 0,
'center_x': 0,
'center_y': 0
} # 'MULTI_GAUSSIAN_ELLIPSE'
]
lightModel = LightModel(light_model_list=light_model_list)
total_flux_list = lightModel.total_flux(kwargs_list)
assert total_flux_list[2] == 100
assert total_flux_list[3] == 2
assert total_flux_list[4] == 2
assert total_flux_list[5] == 2
assert total_flux_list[6] == 2
total_flux_list = lightModel.total_flux(kwargs_list, norm=True)
assert total_flux_list[2] == 100
assert total_flux_list[3] == 1
assert total_flux_list[4] == 1
assert total_flux_list[5] == 2
assert total_flux_list[6] == 2
def test_delete_interpol_caches(self):
x, y = util.make_grid(numPix=20, deltapix=1.)
gauss = Gaussian()
flux = gauss.function(x, y, amp=1., center_x=0., center_y=0., sigma=1.)
image = util.array2image(flux)
light_model_list = ['INTERPOL', 'INTERPOL']
kwargs_list = [{
'image': image,
'scale': 1,
'phi_G': 0,
'center_x': 0,
'center_y': 0
}, {
'image': image,
'scale': 1,
'phi_G': 0,
'center_x': 0,
'center_y': 0
}]
lightModel = LightModel(light_model_list=light_model_list)
output = lightModel.surface_brightness(x, y, kwargs_list)
for func in lightModel.func_list:
assert hasattr(func, '_image_interp')
lightModel.delete_interpol_caches()
for func in lightModel.func_list:
assert not hasattr(func, '_image_interp')
def test_check_positive_flux_profile(self):
ligthModel = LightModel(light_model_list=['GAUSSIAN'])
kwargs_list = [{'amp': 0, 'sigma': 1}]
bool = ligthModel.check_positive_flux_profile(kwargs_list)
assert bool
kwargs_list = [{'amp': -1, 'sigma': 1}]
bool = ligthModel.check_positive_flux_profile(kwargs_list)
assert not bool
class TestLightModel(object):
"""
tests the source model routines
"""
def setup(self):
self.light_model_list = [
'GAUSSIAN', 'MULTI_GAUSSIAN', 'SERSIC', 'SERSIC_ELLIPSE',
'CORE_SERSIC', 'SHAPELETS', 'HERNQUIST', 'HERNQUIST_ELLIPSE',
'PJAFFE', 'PJAFFE_ELLIPSE', 'UNIFORM', 'POWER_LAW', 'NIE'
]
phi_G, q = 0.5, 0.8
e1, e2 = param_util.phi_q2_ellipticity(phi_G, q)
self.kwargs = [
{
'amp': 1.,
'sigma_x': 1,
'sigma_y': 1.,
'center_x': 0,
'center_y': 0
}, # 'GAUSSIAN'
{
'amp': [1., 2],
'sigma': [1, 3],
'center_x': 0,
'center_y': 0
}, # 'MULTI_GAUSSIAN'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'center_x': 0,
'center_y': 0
}, # 'SERSIC'
{
'amp': 1,
'R_sersic': 0.5,
'n_sersic': 1,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
}, # 'SERSIC_ELLIPSE'
{
'amp': 1,
'R_sersic': 0.5,
'Re': 0.1,
'gamma': 2.,
'n_sersic': 1,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
},
# 'CORE_SERSIC'
{
'amp': [1, 1, 1],
'beta': 0.5,
'n_max': 1,
'center_x': 0,
'center_y': 0
}, # 'SHAPELETS'
{
'amp': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0
}, # 'HERNQUIST'
{
'amp': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0,
'e1': e1,
'e2': e2
}, # 'HERNQUIST_ELLIPSE'
{
'amp': 1,
'Ra': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0
}, # 'PJAFFE'
{
'amp': 1,
'Ra': 1,
'Rs': 0.5,
'center_x': 0,
'center_y': 0,
'e1': e1,
'e2': e2
}, # 'PJAFFE_ELLIPSE'
{
'amp': 1
}, # 'UNIFORM'
{
'amp': 1.,
'gamma': 2.,
'e1': e1,
'e2': e2,
'center_x': 0,
'center_y': 0
}, # 'POWER_LAW'
{
'amp': .001,
'e1': 0,
'e2': 1.,
'center_x': 0,
'center_y': 0,
's_scale': 1.
}, # 'NIE'
]
self.LightModel = LightModel(light_model_list=self.light_model_list)
def test_init(self):
model_list = [
'CORE_SERSIC', 'SHAPELETS', 'UNIFORM', 'CHAMELEON',
'DOUBLE_CHAMELEON'
]
lightModel = LightModel(light_model_list=model_list)
assert len(lightModel.profile_type_list) == len(model_list)
def test_surface_brightness(self):
output = self.LightModel.surface_brightness(x=1,
y=1,
kwargs_list=self.kwargs)
npt.assert_almost_equal(output, 3.512593731652167, decimal=6)
def test_surface_brightness_array(self):
output = self.LightModel.surface_brightness(x=[1],
y=[1],
kwargs_list=self.kwargs)
npt.assert_almost_equal(output[0], 3.512593731652167, decimal=6)
def test_functions_split(self):
output = self.LightModel.functions_split(x=1.,
y=1.,
kwargs_list=self.kwargs)
npt.assert_almost_equal(output[0][0], 0.058549831524319168, decimal=6)
def test_re_normalize_flux(self):
kwargs_out = self.LightModel.re_normalize_flux(kwargs_list=self.kwargs,
norm_factor=2)
assert kwargs_out[0]['amp'] == 2 * self.kwargs[0]['amp']
def test_param_name_list(self):
param_name_list = self.LightModel.param_name_list()
assert len(self.light_model_list) == len(param_name_list)
def test_update_linear(self):
response, n = self.LightModel.functions_split(1, 1, self.kwargs)
param = np.ones(n) * 2
kwargs_out, i = self.LightModel.update_linear(param,
i=0,
kwargs_list=self.kwargs)
assert i == n
assert kwargs_out[0]['amp'] == 2