|
Last change
on this file since 4d00de6 was
23df833,
checked in by Paul Kienzle <pkienzle@…>, 6 years ago
|
|
Document direct call to Fq in user guide
|
-
Property mode set to
100644
|
|
File size:
691 bytes
|
| Line | |
|---|
| 1 | """ |
|---|
| 2 | Minimal example of calling a kernel for a specific set of q values. |
|---|
| 3 | """ |
|---|
| 4 | |
|---|
| 5 | from numpy import logspace, sqrt |
|---|
| 6 | from matplotlib import pyplot as plt |
|---|
| 7 | from sasmodels.core import load_model |
|---|
| 8 | from sasmodels.direct_model import call_kernel, call_Fq |
|---|
| 9 | |
|---|
| 10 | model = load_model('cylinder') |
|---|
| 11 | q = logspace(-3, -1, 200) |
|---|
| 12 | kernel = model.make_kernel([q]) |
|---|
| 13 | pars = {'radius': 200, 'radius_pd': 0.1, 'scale': 2} |
|---|
| 14 | Iq = call_kernel(kernel, pars) |
|---|
| 15 | F, Fsq, Reff, V, Vratio = call_Fq(kernel, pars) |
|---|
| 16 | plt.loglog(q, Iq, label='2 I(q)') |
|---|
| 17 | plt.loglog(q, F**2/V, label='<F(q)>^2/V') |
|---|
| 18 | plt.loglog(q, Fsq/V, label='<F^2(q)>/V') |
|---|
| 19 | plt.xlabel('q (1/A)') |
|---|
| 20 | plt.ylabel('I(q) (1/cm)') |
|---|
| 21 | plt.title('Cylinder with radius 200.') |
|---|
| 22 | plt.legend() |
|---|
| 23 | plt.show() |
|---|
Note: See
TracBrowser
for help on using the repository browser.
