core_shell_microgelscostrafo411magnetic_modelrelease_v0.94release_v0.95ticket-1257-vesicle-productticket_1156ticket_1265_superballticket_822_more_unit_tests
Line | |
---|
1 | double form_volume(void); |
---|
2 | |
---|
3 | double Iq(double q, |
---|
4 | double guinier_scale, |
---|
5 | double lorentzian_scale, |
---|
6 | double gyration_radius, |
---|
7 | double fractal_exp, |
---|
8 | double cor_length); |
---|
9 | |
---|
10 | double Iqxy(double qx, double qy, |
---|
11 | double guinier_scale, |
---|
12 | double lorentzian_scale, |
---|
13 | double gyration_radius, |
---|
14 | double fractal_exp, |
---|
15 | double cor_length); |
---|
16 | |
---|
17 | static double _gel_fit_kernel(double q, |
---|
18 | double guinier_scale, |
---|
19 | double lorentzian_scale, |
---|
20 | double gyration_radius, |
---|
21 | double fractal_exp, |
---|
22 | double cor_length) |
---|
23 | { |
---|
24 | // Lorentzian Term |
---|
25 | ////////////////////////double a(x[i]*x[i]*zeta*zeta); |
---|
26 | double lorentzian_term = q*q*cor_length*cor_length; |
---|
27 | lorentzian_term = 1.0 + ((fractal_exp + 1.0)/3.0)*lorentzian_term; |
---|
28 | lorentzian_term = pow(lorentzian_term, (fractal_exp/2.0) ); |
---|
29 | |
---|
30 | // Exponential Term |
---|
31 | ////////////////////////double d(x[i]*x[i]*rg*rg); |
---|
32 | double exp_term = q*q*gyration_radius*gyration_radius; |
---|
33 | exp_term = exp(-1.0*(exp_term/3.0)); |
---|
34 | |
---|
35 | // Scattering Law |
---|
36 | double result = lorentzian_scale/lorentzian_term + guinier_scale*exp_term; |
---|
37 | return result; |
---|
38 | } |
---|
39 | double form_volume(void){ |
---|
40 | // Unused, so free to return garbage. |
---|
41 | return NAN; |
---|
42 | } |
---|
43 | |
---|
44 | double Iq(double q, |
---|
45 | double guinier_scale, |
---|
46 | double lorentzian_scale, |
---|
47 | double gyration_radius, |
---|
48 | double fractal_exp, |
---|
49 | double cor_length) |
---|
50 | { |
---|
51 | return _gel_fit_kernel(q, |
---|
52 | guinier_scale, |
---|
53 | lorentzian_scale, |
---|
54 | gyration_radius, |
---|
55 | fractal_exp, |
---|
56 | cor_length); |
---|
57 | } |
---|
58 | |
---|
59 | // Iqxy is never called since no orientation or magnetic parameters. |
---|
60 | double Iqxy(double qx, double qy, |
---|
61 | double guinier_scale, |
---|
62 | double lorentzian_scale, |
---|
63 | double gyration_radius, |
---|
64 | double fractal_exp, |
---|
65 | double cor_length) |
---|
66 | { |
---|
67 | double q = sqrt(qx*qx + qy*qy); |
---|
68 | return _gel_fit_kernel(q, |
---|
69 | guinier_scale, |
---|
70 | lorentzian_scale, |
---|
71 | gyration_radius, |
---|
72 | fractal_exp, |
---|
73 | cor_length); |
---|
74 | } |
---|
75 | |
---|
Note: See
TracBrowser
for help on using the repository browser.