source: sasview/sansmodels/include/sphere.h @ afd45674

#if !defined(sphere_h)
#define sphere_h
#include "parameters.hh"

/**
 * Structure definition for sphere parameters
 */
 //[PYTHONCLASS] = SphereModel
 //[DISP_PARAMS] = radius
 //[DESCRIPTION] =<text>P(q)=(scale/V)*[3V(sldSph-sldSolv)*(sin(qR)-qRcos(qR))
 //                                             /(qR)^3]^(2)+bkg
 //
 //                             bkg:background, R: radius of sphere
 //                             V:The volume of the scatter
 //                             sldSph: the SLD of the sphere
 //                             sldSolv: the SLD of the solvent
 //
 //             </text>
 //[FIXED]=  radius.width
 //[ORIENTATION_PARAMS]= <text> M0_sld_sph; M_theta_sph; M_phi_sph;M0_sld_solv; M_theta_solv; M_phi_solv; Up_frac_i; Up_frac_f; Up_theta; </text>
 //[MAGNETIC_PARAMS]= <text> M0_sld_sph; M_theta_sph; M_phi_sph; M0_sld_solv; M_theta_solv; M_phi_solv; Up_frac_i; Up_frac_f; Up_theta; </text>
 //[CATEGORY] = Shapes & Spheres
 
class SphereModel{
public:
        // Model parameters
        /// Scale factor
        //  [DEFAULT]=scale= 1.0
        Parameter scale;

        /// Radius of sphere [A]
        //  [DEFAULT]=radius=60.0 [A]
        Parameter radius;

        /// sldSph [1/A^(2)]
        //  [DEFAULT]=sldSph= 2.0e-6 [1/A^(2)]
        Parameter sldSph;

        /// sldSolv [1/A^(2)]
        //  [DEFAULT]=sldSolv= 1.0e-6 [1/A^(2)]
        Parameter sldSolv;

        /// Incoherent Background [1/cm]
        //  [DEFAULT]=background=0 [1/cm]
        Parameter background;

        /// M0_sld_sph
        //  [DEFAULT]=M0_sld_sph=0.0e-6 [1/A^(2)]
        Parameter M0_sld_sph;

        /// M_theta_sph
        //  [DEFAULT]=M_theta_sph=0.0 [deg]
        Parameter M_theta_sph;

        /// M_phi_sph
        //  [DEFAULT]=M_phi_sph=0.0 [deg]
        Parameter M_phi_sph;

        /// M0_sld_solv
        //  [DEFAULT]=M0_sld_solv=0.0e-6 [1/A^(2)]
        Parameter M0_sld_solv;

        /// M_theta_solv
        //  [DEFAULT]=M_theta_solv=0.0 [deg]
        Parameter M_theta_solv;

        /// M_phi_solv
        //  [DEFAULT]=M_phi_solv=0.0 [deg]
        Parameter M_phi_solv;
        
        /// Up_frac_i
        //  [DEFAULT]=Up_frac_i=0.5 [u/(u+d)]
        Parameter Up_frac_i;

        /// Up_frac_f
        //  [DEFAULT]=Up_frac_f=0.5 [u/(u+d)]
        Parameter Up_frac_f;

        /// Up_theta
        //  [DEFAULT]=Up_theta=0.0 [deg]
        Parameter Up_theta;


        // Constructor
        SphereModel();

        // Operators to get I(Q)
        double operator()(double q);
        double operator()(double qx, double qy);
        double calculate_ER();
        double calculate_VR();
        double evaluate_rphi(double q, double phi);
};


#endif