source: sasview/sansmodels/src/sans/models/c_extensions/vesicle.h @ 18695bf

#if !defined(vesicle_h)
#define vesicle_h

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

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

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

        ///     core scattering length density [1/A^(2)]
    //  [DEFAULT]=core_sld= 6.36e-6 [1/A^(2)]
    double core_sld;

    /// shell scattering length density [1/A^(2)]
    //  [DEFAULT]=shell_sld= 5.0e-7 [1/A^(2)]
    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