source: sasview/sansmodels/src/sans/models/OnionModel.py @ b9958b3

#!/usr/bin/env python

##############################################################################
#       This software was developed by the University of Tennessee as part of the
#       Distributed Data Analysis of Neutron Scattering Experiments (DANSE)
#       project funded by the US National Science Foundation.
#
#       If you use DANSE applications to do scientific research that leads to
#       publication, we ask that you acknowledge the use of the software with the
#       following sentence:
#
#       "This work benefited from DANSE software developed under NSF award DMR-0520547."
#
#       copyright 2008, University of Tennessee
##############################################################################


""" 
Provide functionality for a C extension model

:WARNING: THIS FILE WAS GENERATED BY WRAPPERGENERATOR.PY
         DO NOT MODIFY THIS FILE, MODIFY ..\c_extensions\onion.h
         AND RE-RUN THE GENERATOR SCRIPT

"""

from sans.models.BaseComponent import BaseComponent
from sans.models.sans_extension.c_models import COnionModel
import copy    

def create_OnionModel():
    obj = OnionModel()
    #COnionModel.__init__(obj) is called by OnionModel constructor
    return obj

class OnionModel(COnionModel, BaseComponent):
    """ 
    Class that evaluates a OnionModel model. 
    This file was auto-generated from ..\c_extensions\onion.h.
    Refer to that file and the structure it contains
    for details of the model.
    List of default parameters:
         n_shells        = 1.0 
         scale           = 1.0 
         rad_core0       = 200.0 [A]
         sld_core0       = 1e-06 [1/A^(2)]
         sld_solv        = 6.4e-06 [1/A^(2)]
         background      = 0.0 [1/cm]
         sld_out_shell1  = 2e-06 [1/A^(2)]
         sld_out_shell2  = 2.5e-06 [1/A^(2)]
         sld_out_shell3  = 3e-06 [1/A^(2)]
         sld_out_shell4  = 3.5e-06 [1/A^(2)]
         sld_out_shell5  = 4e-06 [1/A^(2)]
         sld_out_shell6  = 4.5e-06 [1/A^(2)]
         sld_out_shell7  = 5e-06 [1/A^(2)]
         sld_out_shell8  = 5.5e-06 [1/A^(2)]
         sld_out_shell9  = 6e-06 [1/A^(2)]
         sld_out_shell10 = 6.2e-06 [1/A^(2)]
         sld_in_shell1   = 1.7e-06 [1/A^(2)]
         sld_in_shell2   = 2.2e-06 [1/A^(2)]
         sld_in_shell3   = 2.7e-06 [1/A^(2)]
         sld_in_shell4   = 3.2e-06 [1/A^(2)]
         sld_in_shell5   = 3.7e-06 [1/A^(2)]
         sld_in_shell6   = 4.2e-06 [1/A^(2)]
         sld_in_shell7   = 4.7e-06 [1/A^(2)]
         sld_in_shell8   = 5.2e-06 [1/A^(2)]
         sld_in_shell9   = 5.7e-06 [1/A^(2)]
         sld_in_shell10  = 6e-06 [1/A^(2)]
         A_shell1        = 1.0 
         A_shell2        = 1.0 
         A_shell3        = 1.0 
         A_shell4        = 1.0 
         A_shell5        = 1.0 
         A_shell6        = 1.0 
         A_shell7        = 1.0 
         A_shell8        = 1.0 
         A_shell9        = 1.0 
         A_shell10       = 1.0 
         thick_shell1    = 50.0 [A]
         thick_shell2    = 50.0 [A]
         thick_shell3    = 50.0 [A]
         thick_shell4    = 50.0 [A]
         thick_shell5    = 50.0 [A]
         thick_shell6    = 50.0 [A]
         thick_shell7    = 50.0 [A]
         thick_shell8    = 50.0 [A]
         thick_shell9    = 50.0 [A]
         thick_shell10   = 50.0 [A]
         func_shell1     = 2.0 
         func_shell2     = 2.0 
         func_shell3     = 2.0 
         func_shell4     = 2.0 
         func_shell5     = 2.0 
         func_shell6     = 2.0 
         func_shell7     = 2.0 
         func_shell8     = 2.0 
         func_shell9     = 2.0 
         func_shell10    = 2.0 

    """
        
    def __init__(self):
        """ Initialization """
        
        # Initialize BaseComponent first, then sphere
        BaseComponent.__init__(self)
        #apply(COnionModel.__init__, (self,)) 
        COnionModel.__init__(self)
        
        ## Name of the model
        self.name = "OnionModel"
        ## Model description
        self.description ="""Form factor of mutishells normalized by the volume. Here each shell is described
                by an exponential function;
                I)
                For A_shell != 0,
                f(r) = B*exp(A_shell*(r-r_in)/thick_shell)+C
                where
                B=(sld_out-sld_in)/(exp(A_shell)-1)
                C=sld_in-B.
                Note that in the above case,
                the function becomes a linear function
                as A_shell --> 0+ or 0-.
                II)
                For the exact point of A_shell == 0,
                f(r) = sld_in ,i.e., it crosses over flat function
                Note that the 'sld_out' becaomes NULL in this case.
                
                background:background,
                rad_core0: radius of sphere(core)
                thick_shell#:the thickness of the shell#
                sld_core0: the SLD of the sphere
                sld_solv: the SLD of the solvent
                sld_shell: the SLD of the shell#
                A_shell#: the coefficient in the exponential function"""
       
        ## Parameter details [units, min, max]
        self.details = {}
        self.details['n_shells'] = ['', None, None]
        self.details['scale'] = ['', None, None]
        self.details['rad_core0'] = ['[A]', None, None]
        self.details['sld_core0'] = ['[1/A^(2)]', None, None]
        self.details['sld_solv'] = ['[1/A^(2)]', None, None]
        self.details['background'] = ['[1/cm]', None, None]
        self.details['sld_out_shell1'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell2'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell3'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell4'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell5'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell6'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell7'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell8'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell9'] = ['[1/A^(2)]', None, None]
        self.details['sld_out_shell10'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell1'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell2'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell3'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell4'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell5'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell6'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell7'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell8'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell9'] = ['[1/A^(2)]', None, None]
        self.details['sld_in_shell10'] = ['[1/A^(2)]', None, None]
        self.details['A_shell1'] = ['', None, None]
        self.details['A_shell2'] = ['', None, None]
        self.details['A_shell3'] = ['', None, None]
        self.details['A_shell4'] = ['', None, None]
        self.details['A_shell5'] = ['', None, None]
        self.details['A_shell6'] = ['', None, None]
        self.details['A_shell7'] = ['', None, None]
        self.details['A_shell8'] = ['', None, None]
        self.details['A_shell9'] = ['', None, None]
        self.details['A_shell10'] = ['', None, None]
        self.details['thick_shell1'] = ['[A]', None, None]
        self.details['thick_shell2'] = ['[A]', None, None]
        self.details['thick_shell3'] = ['[A]', None, None]
        self.details['thick_shell4'] = ['[A]', None, None]
        self.details['thick_shell5'] = ['[A]', None, None]
        self.details['thick_shell6'] = ['[A]', None, None]
        self.details['thick_shell7'] = ['[A]', None, None]
        self.details['thick_shell8'] = ['[A]', None, None]
        self.details['thick_shell9'] = ['[A]', None, None]
        self.details['thick_shell10'] = ['[A]', None, None]
        self.details['func_shell1'] = ['', None, None]
        self.details['func_shell2'] = ['', None, None]
        self.details['func_shell3'] = ['', None, None]
        self.details['func_shell4'] = ['', None, None]
        self.details['func_shell5'] = ['', None, None]
        self.details['func_shell6'] = ['', None, None]
        self.details['func_shell7'] = ['', None, None]
        self.details['func_shell8'] = ['', None, None]
        self.details['func_shell9'] = ['', None, None]
        self.details['func_shell10'] = ['', None, None]

        ## fittable parameters
        self.fixed=['rad_core0.width', 'thick_shell1.width', 'thick_shell2.width', 'thick_shell3.width', 'thick_shell4.width', 'thick_shell5.width', 'thick_shell6.width', 'thick_shell7.width', 'thick_shell8.width', 'thick_shell9.width', 'thick_shell10.width']
        
        ## non-fittable parameters
        self.non_fittable = []
        
        ## parameters with orientation
        self.orientation_params = []

    def __setstate__(self, state):
        """
        restore the state of a model from pickle
        """
        self.__dict__, self.params, self.dispersion = state
        
    def __reduce_ex__(self, proto):
        """
        Overwrite the __reduce_ex__ of PyTypeObject *type call in the init of 
        c model.
        """
        state = (self.__dict__, self.params, self.dispersion)
        return (create_OnionModel,tuple(), state, None, None)
        
    def clone(self):
        """ Return a identical copy of self """
        return self._clone(OnionModel())   
        
   
    def run(self, x=0.0):
        """ 
        Evaluate the model
        
        :param x: input q, or [q,phi]
        
        :return: scattering function P(q)
        
        """
        
        return COnionModel.run(self, x)
   
    def runXY(self, x=0.0):
        """ 
        Evaluate the model in cartesian coordinates
        
        :param x: input q, or [qx, qy]
        
        :return: scattering function P(q)
        
        """
        
        return COnionModel.runXY(self, x)
        
    def evalDistribution(self, x=[]):
        """ 
        Evaluate the model in cartesian coordinates
        
        :param x: input q[], or [qx[], qy[]]
        
        :return: scattering function P(q[])
        
        """
        return COnionModel.evalDistribution(self, x)
        
    def calculate_ER(self):
        """ 
        Calculate the effective radius for P(q)*S(q)
        
        :return: the value of the effective radius
        
        """       
        return COnionModel.calculate_ER(self)
        
    def set_dispersion(self, parameter, dispersion):
        """
        Set the dispersion object for a model parameter
        
        :param parameter: name of the parameter [string]
        :param dispersion: dispersion object of type DispersionModel
        
        """
        return COnionModel.set_dispersion(self, parameter, dispersion.cdisp)
        
   
# End of file