source: sasview/sansmodels/src/sans/models/CylinderModel.py @ 9316609

#!/usr/bin/env python
""" Provide functionality for a C extension model

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

    @author: Mathieu Doucet / UTK
    @contact: mathieu.doucet@nist.gov
"""

from sans.models.BaseComponent import BaseComponent
from sans_extension.c_models import CCylinderModel
import copy    
    
class CylinderModel(CCylinderModel, BaseComponent):
    """ Class that evaluates a CylinderModel model. 
        This file was auto-generated from Cylinder.h.
        Refer to that file and the structure it contains
        for details of the model.
        List of default parameters:
         scale           = 1.0 
         radius          = 20.0 A
         length          = 400.0 A
         contrast        = 3e-006 A-2
         background      = 0.0 cm-1
         cyl_theta       = 1.0 rad
         cyl_phi         = 1.0 rad

    """
        
    def __init__(self):
        """ Initialization """
        
        # Initialize BaseComponent first, then sphere
        BaseComponent.__init__(self)
        CCylinderModel.__init__(self)
        
        ## Name of the model
        self.name = "CylinderModel"
        self.description= """P(q,alpha)= scale/V*f(q)^(2)+bkg
                f(q)= 2*(scatter_sld - solvent_sld)*V*sin(qLcos(alpha/2))/[qLcos(alpha/2)]*
                J1(qRsin(alpha/2))/[qRsin(alpha)]
                V: Volume of the cylinder
                R: Radius of the cylinder
                L: Length of the cylinder
                J1: The bessel function
                alpha: angle betweenthe axis of the cylinder and the q-vector
                for 1D:the ouput is P(q)=scale/V*integral from pi/2 to zero of f(q)^(2)*
                sin(alpha)*dalpha+ bkg"""
                ## Parameter details [units, min, max]
        self.details = {}
        self.details['scale'] = ['', None, None]
        self.details['radius'] = ['A', None, None]
        self.details['length'] = ['A', None, None]
        self.details['contrast'] = ['A-2', None, None]
        self.details['background'] = ['cm-1', None, None]
        self.details['cyl_theta'] = ['rad', None, None]
        self.details['cyl_phi'] = ['rad', None, None]

   
    def clone(self):
        """ Return a identical copy of self """
        obj = CylinderModel()
        obj.params = copy.deepcopy(self.params)
        return obj   
   
    def run(self, x = 0.0):
        """ Evaluate the model
            @param x: input q, or [q,phi]
            @return: scattering function P(q)
        """
        
        return CCylinderModel.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 CCylinderModel.runXY(self, x)
   
# End of file