source: sasview/src/sas/models/include/barbell.h @ 79492222

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Last change on this file since 79492222 was 79492222, checked in by krzywon, 8 years ago

Changed the file and folder names to remove all SANS references.

  • Property mode set to 100644
File size: 2.3 KB
Line 
1#if !defined(barbell_h)
2#define barbell_h
3#include "parameters.hh"
4/**
5 * Structure definition for BarBell parameters
6 */
7 //[PYTHONCLASS] = BarBellModel
8 //[DISP_PARAMS] = rad_bar,len_bar,rad_bell,phi,  theta
9 //[DESCRIPTION] =<text>Calculates the scattering from a barbell-shaped cylinder. That is
10 //                             a sphereocylinder with spherical end caps
11 //                             that have a radius larger than that of
12 //                             the cylinder and the center of the end cap
13 //                             radius lies outside of the cylinder.
14 //                             Note: As the length of cylinder(bar) -->0,
15 //                             it becomes a dumbbell.
16 //                             And when rad_bar = rad_bell,
17 //                             it is a spherocylinder.
18 //                             It must be that rad_bar <(=) rad_bell.
19 //                             [Parameters];
20 //                             scale: volume fraction of spheres,
21 //                             background:incoherent background,
22 //                             rad_bar: radius of the cylindrical bar,
23 //                             len_bar: length of the cylindrical bar,
24 //                             rad_bell: radius of the spherical bell,
25 //                             sld_barbell: SLD of the barbell,
26 //                             sld_solv: SLD of the solvent.
27 //             </text>
28 //[FIXED]=  rad_bar.width;len_bar;rad_bell;phi.width; theta.width
29 //[ORIENTATION_PARAMS]= <text> phi; theta; phi.width; theta.width</text>
30
31class BarBellModel {
32public:
33  // Model parameters
34
35  /// Scale factor
36  //  [DEFAULT]=scale= 1.0
37  Parameter scale;
38
39  /// rad_bar [A]
40  //  [DEFAULT]=rad_bar=20.0 [A]
41  Parameter rad_bar;
42
43  /// length of the bar [A]
44  //  [DEFAULT]=len_bar=400.0 [A]
45  Parameter len_bar;
46
47  /// Radius of sphere [A]
48  //  [DEFAULT]=rad_bell=40.0 [A]
49  Parameter rad_bell;
50
51  /// sld_barbell [1/A^(2)]
52  //  [DEFAULT]=sld_barbell= 1.0e-6 [1/A^(2)]
53  Parameter sld_barbell;
54
55  /// sld_solv [1/A^(2)]
56  //  [DEFAULT]=sld_solv= 6.3e-6 [1/A^(2)]
57  Parameter sld_solv;
58
59  /// Incoherent Background [1/cm]
60  //  [DEFAULT]=background=0.0 [1/cm]
61  Parameter background;
62
63  /// Angle of the main axis against z-axis in detector plane [deg]
64  //  [DEFAULT]=theta=0.0 [deg]
65  Parameter theta;
66
67  /// Azimuthal angle around z-axis in detector plane [deg]
68  //  [DEFAULT]=phi=0.0 [deg]
69  Parameter phi;
70
71  // Constructor
72  BarBellModel();
73
74  // Operators to get I(Q)
75  double operator()(double q);
76  double operator()(double qx, double qy);
77  double calculate_ER();
78  double calculate_VR();
79  double evaluate_rphi(double q, double phi);
80};
81
82#endif
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