source: sasview/sansmodels/src/sans/models/c_extensions/sphere.h @ 1a395a6

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Last change on this file since 1a395a6 was f10063e, checked in by Jae Cho <jhjcho@…>, 15 years ago

Updated the definition of SLD params according to new libigor functions

  • Property mode set to 100644
File size: 1.3 KB
Line 
1#if !defined(sphere_h)
2#define sphere_h
3
4/**
5 * Structure definition for sphere parameters
6 */
7 //[PYTHONCLASS] = SphereModel
8 //[DISP_PARAMS] = radius
9 //[DESCRIPTION] =<text>P(q)=(scale/V)*[3V(sldSph-sldSolv)*(sin(qR)-qRcos(qR))
10 //                                             /(qR)^3]^(2)+bkg
11 //
12 //                             bkg:background, R: radius of sphere
13 //                             V:The volume of the scatter
14 //                             sldSph: the SLD of the sphere
15 //                             sldSolv: the SLD of the solvent
16 //
17 //             </text>
18 //[FIXED]=  radius.width
19 //[ORIENTATION_PARAMS]= <text> </text>
20
21typedef struct {
22    /// Scale factor
23    //  [DEFAULT]=scale= 1.0
24    double scale;
25
26    /// Radius of sphere [A]
27    //  [DEFAULT]=radius=60.0 [A]
28    double radius;
29
30    /// sldSph [1/A^(2)]
31    //  [DEFAULT]=sldSph= 2.0e-6 [1/A^(2)]
32    double sldSph;
33
34    /// sldSolv [1/A^(2)]
35    //  [DEFAULT]=sldSolv= 1.0e-6 [1/A^(2)]
36    double sldSolv;
37
38        /// Incoherent Background [1/cm]
39        //  [DEFAULT]=background=0 [1/cm]
40        double background;
41} SphereParameters;
42
43
44
45/// 1D scattering function
46double sphere_analytical_1D(SphereParameters *pars, double q);
47
48/// 2D scattering function
49double sphere_analytical_2D(SphereParameters *pars, double q, double phi);
50double sphere_analytical_2DXY(SphereParameters *pars, double qx, double qy);
51
52#endif
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