def new_sphere(self,
                q,
                R,
                Rsig,
                rho,
                eirho,
                adensity,
                dist='Gaussian',
                Np=10):
     q = np.array(q)
     dr, rdist, totalR = self.calc_Rdist(R, Rsig, dist, Np)
     form = np.zeros_like(q)
     eiform = np.zeros_like(q)
     aform = np.zeros_like(q)
     cform = np.zeros_like(q)
     pfac = (4 * np.pi * 2.818e-5 * 1.0e-8)**2
     for i in range(len(dr)):
         r = np.array(R) * (1 + (dr[i] - totalR) / totalR)
         ff, mff = ff_sphere_ml(q, r, rho)
         form = form + rdist[i] * ff
         eiff, meiff = ff_sphere_ml(q, r, eirho)
         eiform = eiform + rdist[i] * eiff
         aff, maff = ff_sphere_ml(q, r, adensity)
         aform = aform + rdist[i] * aff
         cform = cform + rdist[i] * (meiff * maff.conjugate() +
                                     meiff.conjugate() * maff)
     return pfac * form, pfac * eiform, pfac * aform, np.abs(
         pfac * cform) / 2  # in cm^2
Example #2
0
 def y(self):
     self.update_parameters()
     if self.Rsig < 0.001:
         ff, aff = ff_sphere_ml(self.x, self.__R__, self.__rho__)
         return ff
         # return self.norm*self.csphere(R,rho)+self.bkg
     else:
         dr, rdist, totalR = self.calc_Rdist(tuple(self.__R__), self.Rsig,
                                             self.dist, self.N)
         res = np.zeros_like(self.x)
         for i in range(len(dr)):
             r = np.array(self.__R__) * (1 + (dr[i] - totalR) / totalR)
             ff, aff = ff_sphere_ml(self.x, r, self.__rho__)
             res = res + rdist[i] * ff
         return self.norm * res + self.bkg
Example #3
0
 def y(self):
     R = [
         self.params['__R__%03d' % i].value
         for i in range(len(self.__mpar__['R']))
     ]
     rho = [
         self.params['__rho__%03d' % i].value
         for i in range(len(self.__mpar__['rho']))
     ]
     if self.Rsig < 0.001:
         ff, aff = ff_sphere_ml(self.x, R, rho)
         return ff
         # return self.norm*self.csphere(R,rho)+self.bkg
     else:
         dr, rdist, totalR = self.calc_Rdist(tuple(R), self.Rsig, self.dist,
                                             self.N)
         res = np.zeros_like(self.x)
         for i in range(len(dr)):
             r = np.array(R) * (1 + (dr[i] - totalR) / totalR)
             ff, aff = ff_sphere_ml(self.x, r, rho)
             res = res + rdist[i] * ff
         return self.norm * res + self.bkg