source: sasview/sansmodels/src/sans/models/c_extensions/vesicle.h @ 3d25331f

#if !defined(vesicle_h)
#define vesicle_h

/**
 * Structure definition for vesicle parameters

        [PYTHONCLASS] = VesicleModel
        [DISP_PARAMS] = core_radius
        [DESCRIPTION] =<text>
                                                Model parameters:
                                                scale : scale factor
                                                core_radius : Core radius of the vesicle
                                                thickness: shell thickness
                                                core_sld: core scattering length density
                                                shell_sld: shell scattering length density
                                                background: incoherent background
               </text>
        [FIXED]=  core_radius.width
        [ORIENTATION_PARAMS]= <text> </text>
 */
typedef struct {
    /// Scale factor
    //  [DEFAULT]=scale= 1.0
    double scale;

    /// Core radius of the vesicle [A]
    //  [DEFAULT]=core_radius= 100.0 [A]
    double core_radius;

        ///     shell thickness [Å]
    //  [DEFAULT]=thickness= 30.0 [A]
    double thickness;

        ///     core scattering length density [1/Ų]
    //  [DEFAULT]=core_sld= 6.36e-6 [1/A²]
    double core_sld;

    /// shell scattering length density [1/Ų]
    //  [DEFAULT]=shell_sld= 5.0e-7 [1/A²]
    double shell_sld;

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

} VesicleParameters;



/// 1D scattering function
double vesicle_analytical_1D(VesicleParameters *pars, double q);

/// 2D scattering function
double vesicle_analytical_2D(VesicleParameters *pars, double q, double phi);
double vesicle_analytical_2DXY(VesicleParameters *pars, double qx, double qy);

#endif