def test_interp_func_scaled(self): numPix = 101 deltaPix = 0.1 x_grid_interp, y_grid_interp = util.make_grid(numPix, deltaPix) sis = SIS() kwargs_SIS = {'theta_E': 1., 'center_x': 0.5, 'center_y': -0.5} f_sis = sis.function(x_grid_interp, y_grid_interp, **kwargs_SIS) f_x_sis, f_y_sis = sis.derivatives(x_grid_interp, y_grid_interp, **kwargs_SIS) f_xx_sis, f_xy_sis, f_yx_sis, f_yy_sis = sis.hessian( x_grid_interp, y_grid_interp, **kwargs_SIS) x_axes, y_axes = util.get_axes(x_grid_interp, y_grid_interp) kwargs_interp = { 'grid_interp_x': x_axes, 'grid_interp_y': y_axes, 'f_': util.array2image(f_sis), 'f_x': util.array2image(f_x_sis), 'f_y': util.array2image(f_y_sis), 'f_xx': util.array2image(f_xx_sis), 'f_yy': util.array2image(f_yy_sis), 'f_xy': util.array2image(f_xy_sis) } interp_func = InterpolScaled(grid=False) x, y = 1., 1. alpha_x, alpha_y = interp_func.derivatives(x, y, scale_factor=1, **kwargs_interp) assert alpha_x == 0.31622776601683794 f_ = interp_func.function(x, y, scale_factor=1., **kwargs_interp) npt.assert_almost_equal(f_, 1.5811388300841898) f_xx, f_xy, f_yx, f_yy = interp_func.hessian(x, y, scale_factor=1., **kwargs_interp) npt.assert_almost_equal(f_xx, 0.56920997883030822, decimal=8) npt.assert_almost_equal(f_yy, 0.063245553203367583, decimal=8) npt.assert_almost_equal(f_xy, -0.18973665961010275, decimal=8) npt.assert_almost_equal(f_xy, f_yx, decimal=8) x_grid, y_grid = util.make_grid(10, deltaPix) f_xx, f_xy, f_yx, f_yy = interp_func.hessian(x_grid, y_grid, scale_factor=1., **kwargs_interp) npt.assert_almost_equal(f_xx[0], 0, decimal=2)
def _import_class(lens_type, custom_class, z_lens=None, z_source=None): """ :param lens_type: string, lens model type :param custom_class: custom class :param z_lens: lens redshift # currently only used in NFW_MC model as this is redshift dependent :param z_source: source redshift # currently only used in NFW_MC model as this is redshift dependent :return: class instance of the lens model type """ if lens_type == 'SHIFT': from lenstronomy.LensModel.Profiles.alpha_shift import Shift return Shift() elif lens_type == 'SHEAR': from lenstronomy.LensModel.Profiles.shear import Shear return Shear() elif lens_type == 'SHEAR_GAMMA_PSI': from lenstronomy.LensModel.Profiles.shear import ShearGammaPsi return ShearGammaPsi() elif lens_type == 'CONVERGENCE': from lenstronomy.LensModel.Profiles.convergence import Convergence return Convergence() elif lens_type == 'FLEXION': from lenstronomy.LensModel.Profiles.flexion import Flexion return Flexion() elif lens_type == 'FLEXIONFG': from lenstronomy.LensModel.Profiles.flexionfg import Flexionfg return Flexionfg() elif lens_type == 'POINT_MASS': from lenstronomy.LensModel.Profiles.point_mass import PointMass return PointMass() elif lens_type == 'SIS': from lenstronomy.LensModel.Profiles.sis import SIS return SIS() elif lens_type == 'SIS_TRUNCATED': from lenstronomy.LensModel.Profiles.sis_truncate import SIS_truncate return SIS_truncate() elif lens_type == 'SIE': from lenstronomy.LensModel.Profiles.sie import SIE return SIE() elif lens_type == 'SPP': from lenstronomy.LensModel.Profiles.spp import SPP return SPP() elif lens_type == 'NIE': from lenstronomy.LensModel.Profiles.nie import NIE return NIE() elif lens_type == 'NIE_SIMPLE': from lenstronomy.LensModel.Profiles.nie import NIEMajorAxis return NIEMajorAxis() elif lens_type == 'CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import Chameleon return Chameleon() elif lens_type == 'DOUBLE_CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import DoubleChameleon return DoubleChameleon() elif lens_type == 'TRIPLE_CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import TripleChameleon return TripleChameleon() elif lens_type == 'SPEP': from lenstronomy.LensModel.Profiles.spep import SPEP return SPEP() elif lens_type == 'SPEMD': from lenstronomy.LensModel.Profiles.spemd import SPEMD return SPEMD() elif lens_type == 'SPEMD_SMOOTH': from lenstronomy.LensModel.Profiles.spemd_smooth import SPEMD_SMOOTH return SPEMD_SMOOTH() elif lens_type == 'NFW': from lenstronomy.LensModel.Profiles.nfw import NFW return NFW() elif lens_type == 'NFW_ELLIPSE': from lenstronomy.LensModel.Profiles.nfw_ellipse import NFW_ELLIPSE return NFW_ELLIPSE() elif lens_type == 'NFW_ELLIPSE_GAUSS_DEC': from lenstronomy.LensModel.Profiles.gauss_decomposition import NFWEllipseGaussDec return NFWEllipseGaussDec() elif lens_type == 'TNFW': from lenstronomy.LensModel.Profiles.tnfw import TNFW return TNFW() elif lens_type == 'CNFW': from lenstronomy.LensModel.Profiles.cnfw import CNFW return CNFW() elif lens_type == 'CNFW_ELLIPSE': from lenstronomy.LensModel.Profiles.cnfw_ellipse import CNFW_ELLIPSE return CNFW_ELLIPSE() elif lens_type == 'CTNFW_GAUSS_DEC': from lenstronomy.LensModel.Profiles.gauss_decomposition import CTNFWGaussDec return CTNFWGaussDec() elif lens_type == 'NFW_MC': from lenstronomy.LensModel.Profiles.nfw_mass_concentration import NFWMC return NFWMC(z_lens=z_lens, z_source=z_source) elif lens_type == 'SERSIC': from lenstronomy.LensModel.Profiles.sersic import Sersic return Sersic() elif lens_type == 'SERSIC_ELLIPSE_POTENTIAL': from lenstronomy.LensModel.Profiles.sersic_ellipse_potential import SersicEllipse return SersicEllipse() elif lens_type == 'SERSIC_ELLIPSE_KAPPA': from lenstronomy.LensModel.Profiles.sersic_ellipse_kappa import SersicEllipseKappa return SersicEllipseKappa() elif lens_type == 'SERSIC_ELLIPSE_GAUSS_DEC': from lenstronomy.LensModel.Profiles.gauss_decomposition \ import SersicEllipseGaussDec return SersicEllipseGaussDec() elif lens_type == 'PJAFFE': from lenstronomy.LensModel.Profiles.p_jaffe import PJaffe return PJaffe() elif lens_type == 'PJAFFE_ELLIPSE': from lenstronomy.LensModel.Profiles.p_jaffe_ellipse import PJaffe_Ellipse return PJaffe_Ellipse() elif lens_type == 'HERNQUIST': from lenstronomy.LensModel.Profiles.hernquist import Hernquist return Hernquist() elif lens_type == 'HERNQUIST_ELLIPSE': from lenstronomy.LensModel.Profiles.hernquist_ellipse import Hernquist_Ellipse return Hernquist_Ellipse() elif lens_type == 'GAUSSIAN': from lenstronomy.LensModel.Profiles.gaussian_potential import Gaussian return Gaussian() elif lens_type == 'GAUSSIAN_KAPPA': from lenstronomy.LensModel.Profiles.gaussian_kappa import GaussianKappa return GaussianKappa() elif lens_type == 'GAUSSIAN_ELLIPSE_KAPPA': from lenstronomy.LensModel.Profiles.gaussian_ellipse_kappa import GaussianEllipseKappa return GaussianEllipseKappa() elif lens_type == 'GAUSSIAN_ELLIPSE_POTENTIAL': from lenstronomy.LensModel.Profiles.gaussian_ellipse_potential import GaussianEllipsePotential return GaussianEllipsePotential() elif lens_type == 'MULTI_GAUSSIAN_KAPPA': from lenstronomy.LensModel.Profiles.multi_gaussian_kappa import MultiGaussianKappa return MultiGaussianKappa() elif lens_type == 'MULTI_GAUSSIAN_KAPPA_ELLIPSE': from lenstronomy.LensModel.Profiles.multi_gaussian_kappa import MultiGaussianKappaEllipse return MultiGaussianKappaEllipse() elif lens_type == 'INTERPOL': from lenstronomy.LensModel.Profiles.interpol import Interpol return Interpol() elif lens_type == 'INTERPOL_SCALED': from lenstronomy.LensModel.Profiles.interpol import InterpolScaled return InterpolScaled() elif lens_type == 'SHAPELETS_POLAR': from lenstronomy.LensModel.Profiles.shapelet_pot_polar import PolarShapelets return PolarShapelets() elif lens_type == 'SHAPELETS_CART': from lenstronomy.LensModel.Profiles.shapelet_pot_cartesian import CartShapelets return CartShapelets() elif lens_type == 'DIPOLE': from lenstronomy.LensModel.Profiles.dipole import Dipole return Dipole() elif lens_type == 'CURVED_ARC': from lenstronomy.LensModel.Profiles.curved_arc import CurvedArc return CurvedArc() elif lens_type == 'ARC_PERT': from lenstronomy.LensModel.Profiles.arc_perturbations import ArcPerturbations return ArcPerturbations() elif lens_type == 'coreBURKERT': from lenstronomy.LensModel.Profiles.coreBurkert import CoreBurkert return CoreBurkert() elif lens_type == 'CORED_DENSITY': from lenstronomy.LensModel.Profiles.cored_density import CoredDensity return CoredDensity() elif lens_type == 'CORED_DENSITY_2': from lenstronomy.LensModel.Profiles.cored_density_2 import CoredDensity2 return CoredDensity2() elif lens_type == 'CORED_DENSITY_MST': from lenstronomy.LensModel.Profiles.cored_density_mst import CoredDensityMST return CoredDensityMST(profile_type='CORED_DENSITY') elif lens_type == 'CORED_DENSITY_2_MST': from lenstronomy.LensModel.Profiles.cored_density_mst import CoredDensityMST return CoredDensityMST(profile_type='CORED_DENSITY_2') elif lens_type == 'NumericalAlpha': from lenstronomy.LensModel.Profiles.numerical_deflections import NumericalAlpha return NumericalAlpha(custom_class) else: raise ValueError('%s is not a valid lens model' % lens_type)
def _import_class(self, lens_type, i, custom_class): if lens_type == 'SHIFT': from lenstronomy.LensModel.Profiles.alpha_shift import Shift return Shift() elif lens_type == 'SHEAR': from lenstronomy.LensModel.Profiles.shear import Shear return Shear() elif lens_type == 'CONVERGENCE': from lenstronomy.LensModel.Profiles.convergence import Convergence return Convergence() elif lens_type == 'FLEXION': from lenstronomy.LensModel.Profiles.flexion import Flexion return Flexion() elif lens_type == 'POINT_MASS': from lenstronomy.LensModel.Profiles.point_mass import PointMass return PointMass() elif lens_type == 'SIS': from lenstronomy.LensModel.Profiles.sis import SIS return SIS() elif lens_type == 'SIS_TRUNCATED': from lenstronomy.LensModel.Profiles.sis_truncate import SIS_truncate return SIS_truncate() elif lens_type == 'SIE': from lenstronomy.LensModel.Profiles.sie import SIE return SIE() elif lens_type == 'SPP': from lenstronomy.LensModel.Profiles.spp import SPP return SPP() elif lens_type == 'NIE': from lenstronomy.LensModel.Profiles.nie import NIE return NIE() elif lens_type == 'NIE_SIMPLE': from lenstronomy.LensModel.Profiles.nie import NIE_simple return NIE_simple() elif lens_type == 'CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import Chameleon return Chameleon() elif lens_type == 'DOUBLE_CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import DoubleChameleon return DoubleChameleon() elif lens_type == 'SPEP': from lenstronomy.LensModel.Profiles.spep import SPEP return SPEP() elif lens_type == 'SPEMD': from lenstronomy.LensModel.Profiles.spemd import SPEMD return SPEMD() elif lens_type == 'SPEMD_SMOOTH': from lenstronomy.LensModel.Profiles.spemd_smooth import SPEMD_SMOOTH return SPEMD_SMOOTH() elif lens_type == 'NFW': from lenstronomy.LensModel.Profiles.nfw import NFW return NFW() elif lens_type == 'NFW_ELLIPSE': from lenstronomy.LensModel.Profiles.nfw_ellipse import NFW_ELLIPSE return NFW_ELLIPSE() elif lens_type == 'TNFW': from lenstronomy.LensModel.Profiles.tnfw import TNFW return TNFW() elif lens_type == 'CNFW': from lenstronomy.LensModel.Profiles.cnfw import CNFW return CNFW() elif lens_type == 'SERSIC': from lenstronomy.LensModel.Profiles.sersic import Sersic return Sersic() elif lens_type == 'SERSIC_ELLIPSE': from lenstronomy.LensModel.Profiles.sersic_ellipse import SersicEllipse return SersicEllipse() elif lens_type == 'PJAFFE': from lenstronomy.LensModel.Profiles.p_jaffe import PJaffe return PJaffe() elif lens_type == 'PJAFFE_ELLIPSE': from lenstronomy.LensModel.Profiles.p_jaffe_ellipse import PJaffe_Ellipse return PJaffe_Ellipse() elif lens_type == 'HERNQUIST': from lenstronomy.LensModel.Profiles.hernquist import Hernquist return Hernquist() elif lens_type == 'HERNQUIST_ELLIPSE': from lenstronomy.LensModel.Profiles.hernquist_ellipse import Hernquist_Ellipse return Hernquist_Ellipse() elif lens_type == 'GAUSSIAN': from lenstronomy.LensModel.Profiles.gaussian_potential import Gaussian return Gaussian() elif lens_type == 'GAUSSIAN_KAPPA': from lenstronomy.LensModel.Profiles.gaussian_kappa import GaussianKappa return GaussianKappa() elif lens_type == 'GAUSSIAN_KAPPA_ELLIPSE': from lenstronomy.LensModel.Profiles.gaussian_kappa_ellipse import GaussianKappaEllipse return GaussianKappaEllipse() elif lens_type == 'MULTI_GAUSSIAN_KAPPA': from lenstronomy.LensModel.Profiles.multi_gaussian_kappa import MultiGaussianKappa return MultiGaussianKappa() elif lens_type == 'MULTI_GAUSSIAN_KAPPA_ELLIPSE': from lenstronomy.LensModel.Profiles.multi_gaussian_kappa import MultiGaussianKappaEllipse return MultiGaussianKappaEllipse() elif lens_type == 'INTERPOL': from lenstronomy.LensModel.Profiles.interpol import Interpol return Interpol(grid=False, min_grid_number=100) elif lens_type == 'INTERPOL_SCALED': from lenstronomy.LensModel.Profiles.interpol import InterpolScaled return InterpolScaled() elif lens_type == 'SHAPELETS_POLAR': from lenstronomy.LensModel.Profiles.shapelet_pot_polar import PolarShapelets return PolarShapelets() elif lens_type == 'SHAPELETS_CART': from lenstronomy.LensModel.Profiles.shapelet_pot_cartesian import CartShapelets return CartShapelets() elif lens_type == 'DIPOLE': from lenstronomy.LensModel.Profiles.dipole import Dipole return Dipole() elif lens_type == 'FOREGROUND_SHEAR': from lenstronomy.LensModel.Profiles.shear import Shear self._foreground_shear = True self._foreground_shear_idex = i return Shear() elif lens_type == 'coreBURKERT': from lenstronomy.LensModel.Profiles.coreBurkert import coreBurkert return coreBurkert() elif lens_type == 'NumericalAlpha': from lenstronomy.LensModel.Profiles.numerical_deflections import NumericalAlpha return NumericalAlpha(custom_class[i]) else: raise ValueError('%s is not a valid lens model' % lens_type)
def _import_class(lens_type, custom_class, kwargs_interp, z_lens=None, z_source=None): """ :param lens_type: string, lens model type :param custom_class: custom class :param z_lens: lens redshift # currently only used in NFW_MC model as this is redshift dependent :param z_source: source redshift # currently only used in NFW_MC model as this is redshift dependent :param kwargs_interp: interpolation keyword arguments specifying the numerics. See description in the Interpolate() class. Only applicable for 'INTERPOL' and 'INTERPOL_SCALED' models. :return: class instance of the lens model type """ if lens_type == 'SHIFT': from lenstronomy.LensModel.Profiles.constant_shift import Shift return Shift() elif lens_type == 'NIE_POTENTIAL': from lenstronomy.LensModel.Profiles.nie_potential import NIE_POTENTIAL return NIE_POTENTIAL() elif lens_type == 'CONST_MAG': from lenstronomy.LensModel.Profiles.const_mag import ConstMag return ConstMag() elif lens_type == 'SHEAR': from lenstronomy.LensModel.Profiles.shear import Shear return Shear() elif lens_type == 'SHEAR_GAMMA_PSI': from lenstronomy.LensModel.Profiles.shear import ShearGammaPsi return ShearGammaPsi() elif lens_type == 'SHEAR_REDUCED': from lenstronomy.LensModel.Profiles.shear import ShearReduced return ShearReduced() elif lens_type == 'CONVERGENCE': from lenstronomy.LensModel.Profiles.convergence import Convergence return Convergence() elif lens_type == 'HESSIAN': from lenstronomy.LensModel.Profiles.hessian import Hessian return Hessian() elif lens_type == 'FLEXION': from lenstronomy.LensModel.Profiles.flexion import Flexion return Flexion() elif lens_type == 'FLEXIONFG': from lenstronomy.LensModel.Profiles.flexionfg import Flexionfg return Flexionfg() elif lens_type == 'POINT_MASS': from lenstronomy.LensModel.Profiles.point_mass import PointMass return PointMass() elif lens_type == 'SIS': from lenstronomy.LensModel.Profiles.sis import SIS return SIS() elif lens_type == 'SIS_TRUNCATED': from lenstronomy.LensModel.Profiles.sis_truncate import SIS_truncate return SIS_truncate() elif lens_type == 'SIE': from lenstronomy.LensModel.Profiles.sie import SIE return SIE() elif lens_type == 'SPP': from lenstronomy.LensModel.Profiles.spp import SPP return SPP() elif lens_type == 'NIE': from lenstronomy.LensModel.Profiles.nie import NIE return NIE() elif lens_type == 'NIE_SIMPLE': from lenstronomy.LensModel.Profiles.nie import NIEMajorAxis return NIEMajorAxis() elif lens_type == 'CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import Chameleon return Chameleon() elif lens_type == 'DOUBLE_CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import DoubleChameleon return DoubleChameleon() elif lens_type == 'TRIPLE_CHAMELEON': from lenstronomy.LensModel.Profiles.chameleon import TripleChameleon return TripleChameleon() elif lens_type == 'SPEP': from lenstronomy.LensModel.Profiles.spep import SPEP return SPEP() elif lens_type == 'PEMD': from lenstronomy.LensModel.Profiles.pemd import PEMD return PEMD() elif lens_type == 'SPEMD': from lenstronomy.LensModel.Profiles.spemd import SPEMD return SPEMD() elif lens_type == 'EPL': from lenstronomy.LensModel.Profiles.epl import EPL return EPL() elif lens_type == 'EPL_NUMBA': from lenstronomy.LensModel.Profiles.epl_numba import EPL_numba return EPL_numba() elif lens_type == 'SPL_CORE': from lenstronomy.LensModel.Profiles.splcore import SPLCORE return SPLCORE() elif lens_type == 'NFW': from lenstronomy.LensModel.Profiles.nfw import NFW return NFW() elif lens_type == 'NFW_ELLIPSE': from lenstronomy.LensModel.Profiles.nfw_ellipse import NFW_ELLIPSE return NFW_ELLIPSE() elif lens_type == 'NFW_ELLIPSE_GAUSS_DEC': from lenstronomy.LensModel.Profiles.gauss_decomposition import NFWEllipseGaussDec return NFWEllipseGaussDec() elif lens_type == 'NFW_ELLIPSE_CSE': from lenstronomy.LensModel.Profiles.nfw_ellipse_cse import NFW_ELLIPSE_CSE return NFW_ELLIPSE_CSE() elif lens_type == 'TNFW': from lenstronomy.LensModel.Profiles.tnfw import TNFW return TNFW() elif lens_type == 'TNFW_ELLIPSE': from lenstronomy.LensModel.Profiles.tnfw_ellipse import TNFW_ELLIPSE return TNFW_ELLIPSE() elif lens_type == 'CNFW': from lenstronomy.LensModel.Profiles.cnfw import CNFW return CNFW() elif lens_type == 'CNFW_ELLIPSE': from lenstronomy.LensModel.Profiles.cnfw_ellipse import CNFW_ELLIPSE return CNFW_ELLIPSE() elif lens_type == 'CTNFW_GAUSS_DEC': from lenstronomy.LensModel.Profiles.gauss_decomposition import CTNFWGaussDec return CTNFWGaussDec() elif lens_type == 'NFW_MC': from lenstronomy.LensModel.Profiles.nfw_mass_concentration import NFWMC return NFWMC(z_lens=z_lens, z_source=z_source) elif lens_type == 'SERSIC': from lenstronomy.LensModel.Profiles.sersic import Sersic return Sersic() elif lens_type == 'SERSIC_ELLIPSE_POTENTIAL': from lenstronomy.LensModel.Profiles.sersic_ellipse_potential import SersicEllipse return SersicEllipse() elif lens_type == 'SERSIC_ELLIPSE_KAPPA': from lenstronomy.LensModel.Profiles.sersic_ellipse_kappa import SersicEllipseKappa return SersicEllipseKappa() elif lens_type == 'SERSIC_ELLIPSE_GAUSS_DEC': from lenstronomy.LensModel.Profiles.gauss_decomposition import SersicEllipseGaussDec return SersicEllipseGaussDec() elif lens_type == 'PJAFFE': from lenstronomy.LensModel.Profiles.p_jaffe import PJaffe return PJaffe() elif lens_type == 'PJAFFE_ELLIPSE': from lenstronomy.LensModel.Profiles.p_jaffe_ellipse import PJaffe_Ellipse return PJaffe_Ellipse() elif lens_type == 'HERNQUIST': from lenstronomy.LensModel.Profiles.hernquist import Hernquist return Hernquist() elif lens_type == 'HERNQUIST_ELLIPSE': from lenstronomy.LensModel.Profiles.hernquist_ellipse import Hernquist_Ellipse return Hernquist_Ellipse() elif lens_type == 'HERNQUIST_ELLIPSE_CSE': from lenstronomy.LensModel.Profiles.hernquist_ellipse_cse import HernquistEllipseCSE return HernquistEllipseCSE() elif lens_type == 'GAUSSIAN': from lenstronomy.LensModel.Profiles.gaussian_potential import Gaussian return Gaussian() elif lens_type == 'GAUSSIAN_KAPPA': from lenstronomy.LensModel.Profiles.gaussian_kappa import GaussianKappa return GaussianKappa() elif lens_type == 'GAUSSIAN_ELLIPSE_KAPPA': from lenstronomy.LensModel.Profiles.gaussian_ellipse_kappa import GaussianEllipseKappa return GaussianEllipseKappa() elif lens_type == 'GAUSSIAN_ELLIPSE_POTENTIAL': from lenstronomy.LensModel.Profiles.gaussian_ellipse_potential import GaussianEllipsePotential return GaussianEllipsePotential() elif lens_type == 'MULTI_GAUSSIAN_KAPPA': from lenstronomy.LensModel.Profiles.multi_gaussian_kappa import MultiGaussianKappa return MultiGaussianKappa() elif lens_type == 'MULTI_GAUSSIAN_KAPPA_ELLIPSE': from lenstronomy.LensModel.Profiles.multi_gaussian_kappa import MultiGaussianKappaEllipse return MultiGaussianKappaEllipse() elif lens_type == 'INTERPOL': from lenstronomy.LensModel.Profiles.interpol import Interpol return Interpol(**kwargs_interp) elif lens_type == 'INTERPOL_SCALED': from lenstronomy.LensModel.Profiles.interpol import InterpolScaled return InterpolScaled(**kwargs_interp) elif lens_type == 'SHAPELETS_POLAR': from lenstronomy.LensModel.Profiles.shapelet_pot_polar import PolarShapelets return PolarShapelets() elif lens_type == 'SHAPELETS_CART': from lenstronomy.LensModel.Profiles.shapelet_pot_cartesian import CartShapelets return CartShapelets() elif lens_type == 'DIPOLE': from lenstronomy.LensModel.Profiles.dipole import Dipole return Dipole() elif lens_type == 'CURVED_ARC_CONST': from lenstronomy.LensModel.Profiles.curved_arc_const import CurvedArcConst return CurvedArcConst() elif lens_type == 'CURVED_ARC_CONST_MST': from lenstronomy.LensModel.Profiles.curved_arc_const import CurvedArcConstMST return CurvedArcConstMST() elif lens_type == 'CURVED_ARC_SPP': from lenstronomy.LensModel.Profiles.curved_arc_spp import CurvedArcSPP return CurvedArcSPP() elif lens_type == 'CURVED_ARC_SIS_MST': from lenstronomy.LensModel.Profiles.curved_arc_sis_mst import CurvedArcSISMST return CurvedArcSISMST() elif lens_type == 'CURVED_ARC_SPT': from lenstronomy.LensModel.Profiles.curved_arc_spt import CurvedArcSPT return CurvedArcSPT() elif lens_type == 'CURVED_ARC_TAN_DIFF': from lenstronomy.LensModel.Profiles.curved_arc_tan_diff import CurvedArcTanDiff return CurvedArcTanDiff() elif lens_type == 'ARC_PERT': from lenstronomy.LensModel.Profiles.arc_perturbations import ArcPerturbations return ArcPerturbations() elif lens_type == 'coreBURKERT': from lenstronomy.LensModel.Profiles.coreBurkert import CoreBurkert return CoreBurkert() elif lens_type == 'CORED_DENSITY': from lenstronomy.LensModel.Profiles.cored_density import CoredDensity return CoredDensity() elif lens_type == 'CORED_DENSITY_2': from lenstronomy.LensModel.Profiles.cored_density_2 import CoredDensity2 return CoredDensity2() elif lens_type == 'CORED_DENSITY_EXP': from lenstronomy.LensModel.Profiles.cored_density_exp import CoredDensityExp return CoredDensityExp() elif lens_type == 'CORED_DENSITY_MST': from lenstronomy.LensModel.Profiles.cored_density_mst import CoredDensityMST return CoredDensityMST(profile_type='CORED_DENSITY') elif lens_type == 'CORED_DENSITY_2_MST': from lenstronomy.LensModel.Profiles.cored_density_mst import CoredDensityMST return CoredDensityMST(profile_type='CORED_DENSITY_2') elif lens_type == 'CORED_DENSITY_EXP_MST': from lenstronomy.LensModel.Profiles.cored_density_mst import CoredDensityMST return CoredDensityMST(profile_type='CORED_DENSITY_EXP') elif lens_type == 'NumericalAlpha': from lenstronomy.LensModel.Profiles.numerical_deflections import NumericalAlpha return NumericalAlpha(custom_class) elif lens_type == 'MULTIPOLE': from lenstronomy.LensModel.Profiles.multipole import Multipole return Multipole() elif lens_type == 'CSE': from lenstronomy.LensModel.Profiles.cored_steep_ellipsoid import CSE return CSE() elif lens_type == 'ElliSLICE': from lenstronomy.LensModel.Profiles.elliptical_density_slice import ElliSLICE return ElliSLICE() elif lens_type == 'ULDM': from lenstronomy.LensModel.Profiles.uldm import Uldm return Uldm() elif lens_type == 'CORED_DENSITY_ULDM_MST': from lenstronomy.LensModel.Profiles.cored_density_mst import CoredDensityMST return CoredDensityMST(profile_type='CORED_DENSITY_ULDM') else: raise ValueError( '%s is not a valid lens model. Supported are: %s.' % (lens_type, _SUPPORTED_MODELS))