# -*- coding: utf-8 -*-
"""
Copyright (c) 2010-2018 CNRS / Centre de Recherche Astrophysique de Lyon
Copyright (c) 2018 Simon Conseil <simon.conseil@univ-lyon1.fr>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""
import logging
__all__ = ('Gauss1D', 'Gauss2D', 'Moffat2D')
[docs]class Gauss1D:
"""This class stores 1D Gaussian parameters.
Attributes
----------
cont : float
Continuum value.
fwhm : float
Gaussian fwhm.
lpeak : float
Gaussian center.
peak : float
Gaussian peak value.
flux : float
Gaussian integrated flux.
err_fwhm : float
Estimated error on Gaussian fwhm.
err_lpeak : float
Estimated error on Gaussian center.
err_peak : float
Estimated error on Gaussian peak value.
err_flux : float
Estimated error on Gaussian integrated flux.
chisq : float
minimization process info (Chi-sqr)
dof : float
minimization process info (number of points - number of parameters)
"""
def __init__(self, lpeak, peak, flux, fwhm, cont, err_lpeak,
err_peak, err_flux, err_fwhm, chisq, dof):
self.cont = cont
self.fwhm = fwhm
self.lpeak = lpeak
self.peak = peak
self.flux = flux
self.err_fwhm = err_fwhm
self.err_lpeak = err_lpeak
self.err_peak = err_peak
self.err_flux = err_flux
self.chisq = chisq
self.dof = dof
[docs] def copy(self):
"""Copy Gauss1D object in a new one and returns it."""
return Gauss1D(self.lpeak, self.peak, self.flux, self.fwhm,
self.cont, self.err_lpeak, self.err_peak,
self.err_flux, self.err_fwhm, self.chisq, self.dof)
[docs] def print_param(self):
"""Print Gaussian parameters."""
info = logging.getLogger(__name__).info
info('Gaussian center = %g (error:%g)', self.lpeak, self.err_lpeak)
info('Gaussian integrated flux = %g (error:%g)',
self.flux, self.err_flux)
info('Gaussian peak value = %g (error:%g)', self.peak, self.err_peak)
info('Gaussian fwhm = %g (error:%g)', self.fwhm, self.err_fwhm)
info('Gaussian continuum = %g', self.cont)
[docs]class Gauss2D:
"""This class stores 2D gaussian parameters.
Attributes
----------
center : (float,float)
Gaussian center (y,x).
flux : float
Gaussian integrated flux.
fwhm : (float,float)
Gaussian fwhm (fhwm_y,fwhm_x).
cont : float
Continuum value.
rot : float
Rotation in degrees.
peak : float
Gaussian peak value.
err_center : (float,float)
Estimated error on Gaussian center.
err_flux : float
Estimated error on Gaussian integrated flux.
err_fwhm : (float,float)
Estimated error on Gaussian fwhm.
err_cont : float
Estimated error on continuum value.
err_rot : float
Estimated error on rotation.
err_peak : float
Estimated error on Gaussian peak value.
ima : `~mpdaf.obj.Image`
Gaussian image
"""
def __init__(self, center, flux, fwhm, cont, rot, peak, err_center,
err_flux, err_fwhm, err_cont, err_rot, err_peak, ima=None):
self.center = center
self.flux = flux
self.fwhm = fwhm
self.cont = cont
self.rot = rot
self.peak = peak
self.err_center = err_center
self.err_flux = err_flux
self.err_fwhm = err_fwhm
self.err_cont = err_cont
self.err_rot = err_rot
self.err_peak = err_peak
self.ima = ima
[docs] def copy(self):
"""Copy Gauss2D object in a new one and returns it."""
return Gauss2D(self.center, self.flux, self.fwhm, self.cont,
self.rot, self.peak, self.err_center, self.err_flux,
self.err_fwhm, self.err_cont, self.err_rot,
self.err_peak)
[docs] def print_param(self):
"""Print Gaussian parameters."""
info = logging.getLogger(__name__).info
info('Gaussian center = (%g,%g) (error:(%g,%g))', self.center[0],
self.center[1], self.err_center[0], self.err_center[1])
info('Gaussian integrated flux = %g (error:%g)',
self.flux, self.err_flux)
info('Gaussian peak value = %g (error:%g)', self.peak, self.err_peak)
info('Gaussian fwhm = (%g,%g) (error:(%g,%g))',
self.fwhm[0], self.fwhm[1], self.err_fwhm[0], self.err_fwhm[1])
info('Rotation in degree: %g (error:%g)', self.rot, self.err_rot)
info('Gaussian continuum = %g (error:%g)', self.cont, self.err_cont)
[docs]class Moffat2D:
"""This class stores 2D moffat parameters.
Attributes
----------
center : (float,float)
peak center (y,x).
flux : float
integrated flux.
fwhm : (float,float)
fwhm (fhwm_y,fwhm_x).
cont : float
Continuum value.
n : int
Atmospheric scattering coefficient.
rot : float
Rotation in degrees.
peak : float
intensity peak value.
err_center : (float,float)
Estimated error on center.
err_flux : float
Estimated error on integrated flux.
err_fwhm : (float,float)
Estimated error on fwhm.
err_cont : float
Estimated error on continuum value.
err_n : float
Estimated error on n coefficient.
err_rot : float
Estimated error on rotation.
err_peak : float
Estimated error on peak value.
ima : `~mpdaf.obj.Image`
Moffat image
"""
def __init__(self, center, flux, fwhm, cont, n, rot, peak, err_center,
err_flux, err_fwhm, err_cont, err_n, err_rot, err_peak,
ima=None):
self.center = center
self.flux = flux
self.fwhm = fwhm
self.cont = cont
self.rot = rot
self.peak = peak
self.n = n
self.err_center = err_center
self.err_flux = err_flux
self.err_fwhm = err_fwhm
self.err_cont = err_cont
self.err_rot = err_rot
self.err_peak = err_peak
self.err_n = err_n
self.ima = ima
[docs] def copy(self):
"""Return a copy of a Moffat2D object."""
return Moffat2D(self.center, self.flux, self.fwhm, self.cont,
self.n, self.rot, self.peak, self.err_center,
self.err_flux, self.err_fwhm, self.err_cont,
self.err_n, self.err_rot, self.err_peak)
[docs] def print_param(self):
"""Print Moffat parameters."""
info = logging.getLogger(__name__).info
info('center = (%g,%g) (error:(%g,%g))', self.center[0],
self.center[1], self.err_center[0], self.err_center[1])
info('integrated flux = %g (error:%g)', self.flux, self.err_flux)
info('peak value = %g (error:%g)', self.peak, self.err_peak)
info('fwhm = (%g,%g) (error:(%g,%g))',
self.fwhm[0], self.fwhm[1], self.err_fwhm[0], self.err_fwhm[1])
info('n = %g (error:%g)', self.n, self.err_n)
info('rotation in degree: %g (error:%g)', self.rot, self.err_rot)
info('continuum = %g (error:%g)', self.cont, self.err_cont)