source: sasview/sansmodels/src/sans/models/c_models/COnionModel.cpp @ e594bb0

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload
Last change on this file since e594bb0 was fbd09fa0, checked in by Jae Cho <jhjcho@…>, 14 years ago

added missing models
  • Property mode set to 100644
File size: 55.4 KB
Line 
1/**
2        This software was developed by the University of Tennessee as part of the
3        Distributed Data Analysis of Neutron Scattering Experiments (DANSE)
4        project funded by the US National Science Foundation.
5
6        If you use DANSE applications to do scientific research that leads to
7        publication, we ask that you acknowledge the use of the software with the
8        following sentence:
9
10        "This work benefited from DANSE software developed under NSF award DMR-0520547."
11
12        copyright 2008, University of Tennessee
13 */
14
15/** COnionModel
16 *
17 * C extension
18 *
19 * WARNING: THIS FILE WAS GENERATED BY WRAPPERGENERATOR.PY
20 *          DO NOT MODIFY THIS FILE, MODIFY onion.h
21 *          AND RE-RUN THE GENERATOR SCRIPT
22 *
23 */
24#define NO_IMPORT_ARRAY
25#define PY_ARRAY_UNIQUE_SYMBOL PyArray_API_sans
26 
27extern "C" {
28#include <Python.h>
29#include <arrayobject.h>
30#include "structmember.h"
31#include <stdio.h>
32#include <stdlib.h>
33#include <math.h>
34#include <time.h>
35#include "onion.h"
36}
37
38#include "models.hh"
39#include "dispersion_visitor.hh"
40
41/// Error object for raised exceptions
42static PyObject * COnionModelError = NULL;
43
44
45// Class definition
46typedef struct {
47    PyObject_HEAD
48    /// Parameters
49    PyObject * params;
50    /// Dispersion parameters
51    PyObject * dispersion;
52    /// Underlying model object
53    OnionModel * model;
54    /// Log for unit testing
55    PyObject * log;
56} COnionModel;
57
58
59static void
60COnionModel_dealloc(COnionModel* self)
61{
62    Py_DECREF(self->params);
63    Py_DECREF(self->dispersion);
64    Py_DECREF(self->log);
65    delete self->model;
66    self->ob_type->tp_free((PyObject*)self);
67   
68
69}
70
71static PyObject *
72COnionModel_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
73{
74    COnionModel *self;
75   
76    self = (COnionModel *)type->tp_alloc(type, 0);
77   
78    return (PyObject *)self;
79}
80
81static int
82COnionModel_init(COnionModel *self, PyObject *args, PyObject *kwds)
83{
84    if (self != NULL) {
85       
86        // Create parameters
87        self->params = PyDict_New();
88        self->dispersion = PyDict_New();
89        self->model = new OnionModel();
90       
91        // Initialize parameter dictionary
92        PyDict_SetItemString(self->params,"thick_shell4",Py_BuildValue("d",50.000000000000));
93        PyDict_SetItemString(self->params,"thick_shell5",Py_BuildValue("d",50.000000000000));
94        PyDict_SetItemString(self->params,"thick_shell9",Py_BuildValue("d",50.000000000000));
95        PyDict_SetItemString(self->params,"thick_shell7",Py_BuildValue("d",50.000000000000));
96        PyDict_SetItemString(self->params,"sld_core0",Py_BuildValue("d",0.000001000000));
97        PyDict_SetItemString(self->params,"rad_core0",Py_BuildValue("d",200.000000000000));
98        PyDict_SetItemString(self->params,"A_shell10",Py_BuildValue("d",1.000000000000));
99        PyDict_SetItemString(self->params,"thick_shell1",Py_BuildValue("d",50.000000000000));
100        PyDict_SetItemString(self->params,"func_shell4",Py_BuildValue("d",2.000000000000));
101        PyDict_SetItemString(self->params,"func_shell5",Py_BuildValue("d",2.000000000000));
102        PyDict_SetItemString(self->params,"func_shell6",Py_BuildValue("d",2.000000000000));
103        PyDict_SetItemString(self->params,"scale",Py_BuildValue("d",1.000000000000));
104        PyDict_SetItemString(self->params,"func_shell1",Py_BuildValue("d",2.000000000000));
105        PyDict_SetItemString(self->params,"thick_shell10",Py_BuildValue("d",50.000000000000));
106        PyDict_SetItemString(self->params,"func_shell3",Py_BuildValue("d",2.000000000000));
107        PyDict_SetItemString(self->params,"func_shell8",Py_BuildValue("d",2.000000000000));
108        PyDict_SetItemString(self->params,"func_shell9",Py_BuildValue("d",2.000000000000));
109        PyDict_SetItemString(self->params,"sld_in_shell5",Py_BuildValue("d",0.000003700000));
110        PyDict_SetItemString(self->params,"func_shell10",Py_BuildValue("d",2.000000000000));
111        PyDict_SetItemString(self->params,"sld_in_shell4",Py_BuildValue("d",0.000003200000));
112        PyDict_SetItemString(self->params,"sld_in_shell7",Py_BuildValue("d",0.000004700000));
113        PyDict_SetItemString(self->params,"sld_out_shell9",Py_BuildValue("d",0.000006000000));
114        PyDict_SetItemString(self->params,"sld_out_shell8",Py_BuildValue("d",0.000005500000));
115        PyDict_SetItemString(self->params,"thick_shell6",Py_BuildValue("d",50.000000000000));
116        PyDict_SetItemString(self->params,"sld_out_shell2",Py_BuildValue("d",0.000002500000));
117        PyDict_SetItemString(self->params,"sld_in_shell9",Py_BuildValue("d",0.000005700000));
118        PyDict_SetItemString(self->params,"sld_in_shell8",Py_BuildValue("d",0.000005200000));
119        PyDict_SetItemString(self->params,"thick_shell2",Py_BuildValue("d",50.000000000000));
120        PyDict_SetItemString(self->params,"thick_shell3",Py_BuildValue("d",50.000000000000));
121        PyDict_SetItemString(self->params,"sld_out_shell1",Py_BuildValue("d",0.000002000000));
122        PyDict_SetItemString(self->params,"sld_out_shell5",Py_BuildValue("d",0.000004000000));
123        PyDict_SetItemString(self->params,"sld_out_shell3",Py_BuildValue("d",0.000003000000));
124        PyDict_SetItemString(self->params,"sld_in_shell6",Py_BuildValue("d",0.000004200000));
125        PyDict_SetItemString(self->params,"sld_in_shell1",Py_BuildValue("d",0.000001700000));
126        PyDict_SetItemString(self->params,"sld_out_shell4",Py_BuildValue("d",0.000003500000));
127        PyDict_SetItemString(self->params,"sld_in_shell3",Py_BuildValue("d",0.000002700000));
128        PyDict_SetItemString(self->params,"sld_out_shell6",Py_BuildValue("d",0.000004500000));
129        PyDict_SetItemString(self->params,"func_shell7",Py_BuildValue("d",2.000000000000));
130        PyDict_SetItemString(self->params,"sld_out_shell7",Py_BuildValue("d",0.000005000000));
131        PyDict_SetItemString(self->params,"background",Py_BuildValue("d",0.000000000000));
132        PyDict_SetItemString(self->params,"n_shells",Py_BuildValue("d",1.000000000000));
133        PyDict_SetItemString(self->params,"sld_in_shell2",Py_BuildValue("d",0.000002200000));
134        PyDict_SetItemString(self->params,"sld_solv",Py_BuildValue("d",0.000006400000));
135        PyDict_SetItemString(self->params,"func_shell2",Py_BuildValue("d",2.000000000000));
136        PyDict_SetItemString(self->params,"thick_shell8",Py_BuildValue("d",50.000000000000));
137        PyDict_SetItemString(self->params,"sld_out_shell10",Py_BuildValue("d",0.000006200000));
138        PyDict_SetItemString(self->params,"sld_in_shell10",Py_BuildValue("d",0.000006000000));
139        PyDict_SetItemString(self->params,"A_shell8",Py_BuildValue("d",1.000000000000));
140        PyDict_SetItemString(self->params,"A_shell9",Py_BuildValue("d",1.000000000000));
141        PyDict_SetItemString(self->params,"A_shell6",Py_BuildValue("d",1.000000000000));
142        PyDict_SetItemString(self->params,"A_shell7",Py_BuildValue("d",1.000000000000));
143        PyDict_SetItemString(self->params,"A_shell4",Py_BuildValue("d",1.000000000000));
144        PyDict_SetItemString(self->params,"A_shell5",Py_BuildValue("d",1.000000000000));
145        PyDict_SetItemString(self->params,"A_shell2",Py_BuildValue("d",1.000000000000));
146        PyDict_SetItemString(self->params,"A_shell3",Py_BuildValue("d",1.000000000000));
147        PyDict_SetItemString(self->params,"A_shell1",Py_BuildValue("d",1.000000000000));
148        // Initialize dispersion / averaging parameter dict
149        DispersionVisitor* visitor = new DispersionVisitor();
150        PyObject * disp_dict;
151        disp_dict = PyDict_New();
152        self->model->rad_core0.dispersion->accept_as_source(visitor, self->model->rad_core0.dispersion, disp_dict);
153        PyDict_SetItemString(self->dispersion, "rad_core0", disp_dict);
154        disp_dict = PyDict_New();
155        self->model->thick_shell1.dispersion->accept_as_source(visitor, self->model->thick_shell1.dispersion, disp_dict);
156        PyDict_SetItemString(self->dispersion, "thick_shell1", disp_dict);
157        disp_dict = PyDict_New();
158        self->model->thick_shell2.dispersion->accept_as_source(visitor, self->model->thick_shell2.dispersion, disp_dict);
159        PyDict_SetItemString(self->dispersion, "thick_shell2", disp_dict);
160        disp_dict = PyDict_New();
161        self->model->thick_shell3.dispersion->accept_as_source(visitor, self->model->thick_shell3.dispersion, disp_dict);
162        PyDict_SetItemString(self->dispersion, "thick_shell3", disp_dict);
163        disp_dict = PyDict_New();
164        self->model->thick_shell4.dispersion->accept_as_source(visitor, self->model->thick_shell4.dispersion, disp_dict);
165        PyDict_SetItemString(self->dispersion, "thick_shell4", disp_dict);
166        disp_dict = PyDict_New();
167        self->model->thick_shell5.dispersion->accept_as_source(visitor, self->model->thick_shell5.dispersion, disp_dict);
168        PyDict_SetItemString(self->dispersion, "thick_shell5", disp_dict);
169        disp_dict = PyDict_New();
170        self->model->thick_shell6.dispersion->accept_as_source(visitor, self->model->thick_shell6.dispersion, disp_dict);
171        PyDict_SetItemString(self->dispersion, "thick_shell6", disp_dict);
172        disp_dict = PyDict_New();
173        self->model->thick_shell7.dispersion->accept_as_source(visitor, self->model->thick_shell7.dispersion, disp_dict);
174        PyDict_SetItemString(self->dispersion, "thick_shell7", disp_dict);
175        disp_dict = PyDict_New();
176        self->model->thick_shell8.dispersion->accept_as_source(visitor, self->model->thick_shell8.dispersion, disp_dict);
177        PyDict_SetItemString(self->dispersion, "thick_shell8", disp_dict);
178        disp_dict = PyDict_New();
179        self->model->thick_shell9.dispersion->accept_as_source(visitor, self->model->thick_shell9.dispersion, disp_dict);
180        PyDict_SetItemString(self->dispersion, "thick_shell9", disp_dict);
181        disp_dict = PyDict_New();
182        self->model->thick_shell10.dispersion->accept_as_source(visitor, self->model->thick_shell10.dispersion, disp_dict);
183        PyDict_SetItemString(self->dispersion, "thick_shell10", disp_dict);
184
185
186         
187        // Create empty log
188        self->log = PyDict_New();
189       
190       
191
192    }
193    return 0;
194}
195
196static PyMemberDef COnionModel_members[] = {
197    {"params", T_OBJECT, offsetof(COnionModel, params), 0,
198     "Parameters"},
199        {"dispersion", T_OBJECT, offsetof(COnionModel, dispersion), 0,
200          "Dispersion parameters"},     
201    {"log", T_OBJECT, offsetof(COnionModel, log), 0,
202     "Log"},
203    {NULL}  /* Sentinel */
204};
205
206/** Read double from PyObject
207    @param p PyObject
208    @return double
209*/
210double COnionModel_readDouble(PyObject *p) {
211    if (PyFloat_Check(p)==1) {
212        return (double)(((PyFloatObject *)(p))->ob_fval);
213    } else if (PyInt_Check(p)==1) {
214        return (double)(((PyIntObject *)(p))->ob_ival);
215    } else if (PyLong_Check(p)==1) {
216        return (double)PyLong_AsLong(p);
217    } else {
218        return 0.0;
219    }
220}
221/**
222 * Function to call to evaluate model
223 * @param args: input numpy array q[]
224 * @return: numpy array object
225 */
226 
227static PyObject *evaluateOneDim(OnionModel* model, PyArrayObject *q){
228    PyArrayObject *result;
229   
230    // Check validity of array q , q must be of dimension 1, an array of double
231    if (q->nd != 1 || q->descr->type_num != PyArray_DOUBLE)
232    {
233        //const char * message= "Invalid array: q->nd=%d,type_num=%d\n",q->nd,q->descr->type_num;
234        //PyErr_SetString(PyExc_ValueError , message);
235        return NULL;
236    }
237    result = (PyArrayObject *)PyArray_FromDims(q->nd, (int *)(q->dimensions), 
238                                                                                  PyArray_DOUBLE);
239        if (result == NULL) {
240        const char * message= "Could not create result ";
241        PyErr_SetString(PyExc_RuntimeError , message);
242                return NULL;
243        }
244         for (int i = 0; i < q->dimensions[0]; i++){
245      double q_value  = *(double *)(q->data + i*q->strides[0]);
246      double *result_value = (double *)(result->data + i*result->strides[0]);
247      *result_value =(*model)(q_value);
248        }
249    return PyArray_Return(result); 
250 }
251
252 /**
253 * Function to call to evaluate model
254 * @param args: input numpy array  [x[],y[]]
255 * @return: numpy array object
256 */
257 static PyObject * evaluateTwoDimXY( OnionModel* model, 
258                              PyArrayObject *x, PyArrayObject *y)
259 {
260    PyArrayObject *result;
261    int i,j, x_len, y_len, dims[1];
262    //check validity of input vectors
263    if (x->nd != 1 || x->descr->type_num != PyArray_DOUBLE
264        || y->nd != 1 || y->descr->type_num != PyArray_DOUBLE
265        || y->dimensions[0] != x->dimensions[0]){
266        const char * message= "evaluateTwoDimXY  expect 2 numpy arrays";
267        PyErr_SetString(PyExc_ValueError , message); 
268        return NULL;
269    }
270   
271        if (PyArray_Check(x) && PyArray_Check(y)) {
272               
273            x_len = dims[0]= x->dimensions[0];
274        y_len = dims[0]= y->dimensions[0];
275           
276            // Make a new double matrix of same dims
277        result=(PyArrayObject *) PyArray_FromDims(1,dims,NPY_DOUBLE);
278        if (result == NULL){
279            const char * message= "Could not create result ";
280        PyErr_SetString(PyExc_RuntimeError , message);
281            return NULL;
282            }
283       
284        /* Do the calculation. */
285        for ( i=0; i< x_len; i++) {
286            double x_value = *(double *)(x->data + i*x->strides[0]);
287                    double y_value = *(double *)(y->data + i*y->strides[0]);
288                        double *result_value = (double *)(result->data +
289                              i*result->strides[0]);
290                        *result_value = (*model)(x_value, y_value);
291        }           
292        return PyArray_Return(result); 
293       
294        }else{
295                    PyErr_SetString(COnionModelError, 
296                   "COnionModel.evaluateTwoDimXY couldn't run.");
297                return NULL;
298                }       
299}
300/**
301 *  evalDistribution function evaluate a model function with input vector
302 *  @param args: input q as vector or [qx, qy] where qx, qy are vectors
303 *
304 */ 
305static PyObject * evalDistribution(COnionModel *self, PyObject *args){
306        PyObject *qx, *qy;
307        PyArrayObject * pars;
308        int npars ,mpars;
309       
310        // Get parameters
311       
312            // Reader parameter dictionary
313    self->model->thick_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell4") );
314    self->model->thick_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell5") );
315    self->model->thick_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell9") );
316    self->model->thick_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell7") );
317    self->model->sld_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_core0") );
318    self->model->rad_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "rad_core0") );
319    self->model->A_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell10") );
320    self->model->thick_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell1") );
321    self->model->func_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell4") );
322    self->model->func_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell5") );
323    self->model->func_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell6") );
324    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
325    self->model->func_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell1") );
326    self->model->thick_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell10") );
327    self->model->func_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell3") );
328    self->model->func_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell8") );
329    self->model->func_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell9") );
330    self->model->sld_in_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell5") );
331    self->model->func_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell10") );
332    self->model->sld_in_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell4") );
333    self->model->sld_in_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell7") );
334    self->model->sld_out_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell9") );
335    self->model->sld_out_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell8") );
336    self->model->thick_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell6") );
337    self->model->sld_out_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell2") );
338    self->model->sld_in_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell9") );
339    self->model->sld_in_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell8") );
340    self->model->thick_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell2") );
341    self->model->thick_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell3") );
342    self->model->sld_out_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell1") );
343    self->model->sld_out_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell5") );
344    self->model->sld_out_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell3") );
345    self->model->sld_in_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell6") );
346    self->model->sld_in_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell1") );
347    self->model->sld_out_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell4") );
348    self->model->sld_in_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell3") );
349    self->model->sld_out_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell6") );
350    self->model->func_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell7") );
351    self->model->sld_out_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell7") );
352    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
353    self->model->n_shells = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_shells") );
354    self->model->sld_in_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell2") );
355    self->model->sld_solv = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solv") );
356    self->model->func_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell2") );
357    self->model->thick_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell8") );
358    self->model->sld_out_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell10") );
359    self->model->sld_in_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell10") );
360    self->model->A_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell8") );
361    self->model->A_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell9") );
362    self->model->A_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell6") );
363    self->model->A_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell7") );
364    self->model->A_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell4") );
365    self->model->A_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell5") );
366    self->model->A_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell2") );
367    self->model->A_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell3") );
368    self->model->A_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell1") );
369    // Read in dispersion parameters
370    PyObject* disp_dict;
371    DispersionVisitor* visitor = new DispersionVisitor();
372    disp_dict = PyDict_GetItemString(self->dispersion, "rad_core0");
373    self->model->rad_core0.dispersion->accept_as_destination(visitor, self->model->rad_core0.dispersion, disp_dict);
374    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell1");
375    self->model->thick_shell1.dispersion->accept_as_destination(visitor, self->model->thick_shell1.dispersion, disp_dict);
376    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell2");
377    self->model->thick_shell2.dispersion->accept_as_destination(visitor, self->model->thick_shell2.dispersion, disp_dict);
378    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell3");
379    self->model->thick_shell3.dispersion->accept_as_destination(visitor, self->model->thick_shell3.dispersion, disp_dict);
380    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell4");
381    self->model->thick_shell4.dispersion->accept_as_destination(visitor, self->model->thick_shell4.dispersion, disp_dict);
382    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell5");
383    self->model->thick_shell5.dispersion->accept_as_destination(visitor, self->model->thick_shell5.dispersion, disp_dict);
384    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell6");
385    self->model->thick_shell6.dispersion->accept_as_destination(visitor, self->model->thick_shell6.dispersion, disp_dict);
386    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell7");
387    self->model->thick_shell7.dispersion->accept_as_destination(visitor, self->model->thick_shell7.dispersion, disp_dict);
388    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell8");
389    self->model->thick_shell8.dispersion->accept_as_destination(visitor, self->model->thick_shell8.dispersion, disp_dict);
390    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell9");
391    self->model->thick_shell9.dispersion->accept_as_destination(visitor, self->model->thick_shell9.dispersion, disp_dict);
392    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell10");
393    self->model->thick_shell10.dispersion->accept_as_destination(visitor, self->model->thick_shell10.dispersion, disp_dict);
394
395       
396        // Get input and determine whether we have to supply a 1D or 2D return value.
397        if ( !PyArg_ParseTuple(args,"O",&pars) ) {
398            PyErr_SetString(COnionModelError, 
399                "COnionModel.evalDistribution expects a q value.");
400                return NULL;
401        }
402    // Check params
403       
404    if(PyArray_Check(pars)==1) {
405               
406            // Length of list should 1 or 2
407            npars = pars->nd; 
408            if(npars==1) {
409                // input is a numpy array
410                if (PyArray_Check(pars)) {
411                        return evaluateOneDim(self->model, (PyArrayObject*)pars); 
412                    }
413                }else{
414                    PyErr_SetString(COnionModelError, 
415                   "COnionModel.evalDistribution expect numpy array of one dimension.");
416                return NULL;
417                }
418    }else if( PyList_Check(pars)==1) {
419        // Length of list should be 2 for I(qx,qy)
420            mpars = PyList_GET_SIZE(pars); 
421            if(mpars!=2) {
422                PyErr_SetString(COnionModelError, 
423                        "COnionModel.evalDistribution expects a list of dimension 2.");
424                return NULL;
425            }
426             qx = PyList_GET_ITEM(pars,0);
427             qy = PyList_GET_ITEM(pars,1);
428             if (PyArray_Check(qx) && PyArray_Check(qy)) {
429                 return evaluateTwoDimXY(self->model, (PyArrayObject*)qx,
430                           (PyArrayObject*)qy);
431                 }else{
432                    PyErr_SetString(COnionModelError, 
433                   "COnionModel.evalDistribution expect 2 numpy arrays in list.");
434                return NULL;
435             }
436        }
437        PyErr_SetString(COnionModelError, 
438                   "COnionModel.evalDistribution couln't be run.");
439        return NULL;
440       
441}
442
443/**
444 * Function to call to evaluate model
445 * @param args: input q or [q,phi]
446 * @return: function value
447 */
448static PyObject * run(COnionModel *self, PyObject *args) {
449        double q_value, phi_value;
450        PyObject* pars;
451        int npars;
452       
453        // Get parameters
454       
455            // Reader parameter dictionary
456    self->model->thick_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell4") );
457    self->model->thick_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell5") );
458    self->model->thick_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell9") );
459    self->model->thick_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell7") );
460    self->model->sld_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_core0") );
461    self->model->rad_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "rad_core0") );
462    self->model->A_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell10") );
463    self->model->thick_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell1") );
464    self->model->func_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell4") );
465    self->model->func_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell5") );
466    self->model->func_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell6") );
467    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
468    self->model->func_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell1") );
469    self->model->thick_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell10") );
470    self->model->func_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell3") );
471    self->model->func_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell8") );
472    self->model->func_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell9") );
473    self->model->sld_in_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell5") );
474    self->model->func_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell10") );
475    self->model->sld_in_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell4") );
476    self->model->sld_in_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell7") );
477    self->model->sld_out_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell9") );
478    self->model->sld_out_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell8") );
479    self->model->thick_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell6") );
480    self->model->sld_out_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell2") );
481    self->model->sld_in_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell9") );
482    self->model->sld_in_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell8") );
483    self->model->thick_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell2") );
484    self->model->thick_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell3") );
485    self->model->sld_out_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell1") );
486    self->model->sld_out_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell5") );
487    self->model->sld_out_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell3") );
488    self->model->sld_in_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell6") );
489    self->model->sld_in_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell1") );
490    self->model->sld_out_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell4") );
491    self->model->sld_in_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell3") );
492    self->model->sld_out_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell6") );
493    self->model->func_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell7") );
494    self->model->sld_out_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell7") );
495    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
496    self->model->n_shells = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_shells") );
497    self->model->sld_in_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell2") );
498    self->model->sld_solv = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solv") );
499    self->model->func_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell2") );
500    self->model->thick_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell8") );
501    self->model->sld_out_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell10") );
502    self->model->sld_in_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell10") );
503    self->model->A_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell8") );
504    self->model->A_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell9") );
505    self->model->A_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell6") );
506    self->model->A_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell7") );
507    self->model->A_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell4") );
508    self->model->A_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell5") );
509    self->model->A_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell2") );
510    self->model->A_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell3") );
511    self->model->A_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell1") );
512    // Read in dispersion parameters
513    PyObject* disp_dict;
514    DispersionVisitor* visitor = new DispersionVisitor();
515    disp_dict = PyDict_GetItemString(self->dispersion, "rad_core0");
516    self->model->rad_core0.dispersion->accept_as_destination(visitor, self->model->rad_core0.dispersion, disp_dict);
517    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell1");
518    self->model->thick_shell1.dispersion->accept_as_destination(visitor, self->model->thick_shell1.dispersion, disp_dict);
519    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell2");
520    self->model->thick_shell2.dispersion->accept_as_destination(visitor, self->model->thick_shell2.dispersion, disp_dict);
521    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell3");
522    self->model->thick_shell3.dispersion->accept_as_destination(visitor, self->model->thick_shell3.dispersion, disp_dict);
523    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell4");
524    self->model->thick_shell4.dispersion->accept_as_destination(visitor, self->model->thick_shell4.dispersion, disp_dict);
525    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell5");
526    self->model->thick_shell5.dispersion->accept_as_destination(visitor, self->model->thick_shell5.dispersion, disp_dict);
527    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell6");
528    self->model->thick_shell6.dispersion->accept_as_destination(visitor, self->model->thick_shell6.dispersion, disp_dict);
529    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell7");
530    self->model->thick_shell7.dispersion->accept_as_destination(visitor, self->model->thick_shell7.dispersion, disp_dict);
531    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell8");
532    self->model->thick_shell8.dispersion->accept_as_destination(visitor, self->model->thick_shell8.dispersion, disp_dict);
533    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell9");
534    self->model->thick_shell9.dispersion->accept_as_destination(visitor, self->model->thick_shell9.dispersion, disp_dict);
535    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell10");
536    self->model->thick_shell10.dispersion->accept_as_destination(visitor, self->model->thick_shell10.dispersion, disp_dict);
537
538       
539        // Get input and determine whether we have to supply a 1D or 2D return value.
540        if ( !PyArg_ParseTuple(args,"O",&pars) ) {
541            PyErr_SetString(COnionModelError, 
542                "COnionModel.run expects a q value.");
543                return NULL;
544        }
545         
546        // Check params
547        if( PyList_Check(pars)==1) {
548               
549                // Length of list should be 2 for I(q,phi)
550            npars = PyList_GET_SIZE(pars); 
551            if(npars!=2) {
552                PyErr_SetString(COnionModelError, 
553                        "COnionModel.run expects a double or a list of dimension 2.");
554                return NULL;
555            }
556            // We have a vector q, get the q and phi values at which
557            // to evaluate I(q,phi)
558            q_value = COnionModel_readDouble(PyList_GET_ITEM(pars,0));
559            phi_value = COnionModel_readDouble(PyList_GET_ITEM(pars,1));
560            // Skip zero
561            if (q_value==0) {
562                return Py_BuildValue("d",0.0);
563            }
564                return Py_BuildValue("d",(*(self->model)).evaluate_rphi(q_value,phi_value));
565
566        } else {
567
568                // We have a scalar q, we will evaluate I(q)
569                q_value = COnionModel_readDouble(pars);         
570               
571                return Py_BuildValue("d",(*(self->model))(q_value));
572        }       
573}
574/**
575 * Function to call to calculate_ER
576 * @return: effective radius value
577 */
578static PyObject * calculate_ER(COnionModel *self) {
579
580        PyObject* pars;
581        int npars;
582       
583        // Get parameters
584       
585            // Reader parameter dictionary
586    self->model->thick_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell4") );
587    self->model->thick_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell5") );
588    self->model->thick_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell9") );
589    self->model->thick_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell7") );
590    self->model->sld_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_core0") );
591    self->model->rad_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "rad_core0") );
592    self->model->A_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell10") );
593    self->model->thick_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell1") );
594    self->model->func_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell4") );
595    self->model->func_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell5") );
596    self->model->func_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell6") );
597    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
598    self->model->func_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell1") );
599    self->model->thick_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell10") );
600    self->model->func_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell3") );
601    self->model->func_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell8") );
602    self->model->func_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell9") );
603    self->model->sld_in_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell5") );
604    self->model->func_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell10") );
605    self->model->sld_in_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell4") );
606    self->model->sld_in_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell7") );
607    self->model->sld_out_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell9") );
608    self->model->sld_out_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell8") );
609    self->model->thick_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell6") );
610    self->model->sld_out_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell2") );
611    self->model->sld_in_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell9") );
612    self->model->sld_in_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell8") );
613    self->model->thick_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell2") );
614    self->model->thick_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell3") );
615    self->model->sld_out_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell1") );
616    self->model->sld_out_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell5") );
617    self->model->sld_out_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell3") );
618    self->model->sld_in_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell6") );
619    self->model->sld_in_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell1") );
620    self->model->sld_out_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell4") );
621    self->model->sld_in_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell3") );
622    self->model->sld_out_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell6") );
623    self->model->func_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell7") );
624    self->model->sld_out_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell7") );
625    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
626    self->model->n_shells = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_shells") );
627    self->model->sld_in_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell2") );
628    self->model->sld_solv = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solv") );
629    self->model->func_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell2") );
630    self->model->thick_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell8") );
631    self->model->sld_out_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell10") );
632    self->model->sld_in_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell10") );
633    self->model->A_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell8") );
634    self->model->A_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell9") );
635    self->model->A_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell6") );
636    self->model->A_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell7") );
637    self->model->A_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell4") );
638    self->model->A_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell5") );
639    self->model->A_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell2") );
640    self->model->A_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell3") );
641    self->model->A_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell1") );
642    // Read in dispersion parameters
643    PyObject* disp_dict;
644    DispersionVisitor* visitor = new DispersionVisitor();
645    disp_dict = PyDict_GetItemString(self->dispersion, "rad_core0");
646    self->model->rad_core0.dispersion->accept_as_destination(visitor, self->model->rad_core0.dispersion, disp_dict);
647    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell1");
648    self->model->thick_shell1.dispersion->accept_as_destination(visitor, self->model->thick_shell1.dispersion, disp_dict);
649    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell2");
650    self->model->thick_shell2.dispersion->accept_as_destination(visitor, self->model->thick_shell2.dispersion, disp_dict);
651    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell3");
652    self->model->thick_shell3.dispersion->accept_as_destination(visitor, self->model->thick_shell3.dispersion, disp_dict);
653    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell4");
654    self->model->thick_shell4.dispersion->accept_as_destination(visitor, self->model->thick_shell4.dispersion, disp_dict);
655    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell5");
656    self->model->thick_shell5.dispersion->accept_as_destination(visitor, self->model->thick_shell5.dispersion, disp_dict);
657    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell6");
658    self->model->thick_shell6.dispersion->accept_as_destination(visitor, self->model->thick_shell6.dispersion, disp_dict);
659    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell7");
660    self->model->thick_shell7.dispersion->accept_as_destination(visitor, self->model->thick_shell7.dispersion, disp_dict);
661    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell8");
662    self->model->thick_shell8.dispersion->accept_as_destination(visitor, self->model->thick_shell8.dispersion, disp_dict);
663    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell9");
664    self->model->thick_shell9.dispersion->accept_as_destination(visitor, self->model->thick_shell9.dispersion, disp_dict);
665    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell10");
666    self->model->thick_shell10.dispersion->accept_as_destination(visitor, self->model->thick_shell10.dispersion, disp_dict);
667
668               
669        return Py_BuildValue("d",(*(self->model)).calculate_ER());
670
671}
672/**
673 * Function to call to evaluate model in cartesian coordinates
674 * @param args: input q or [qx, qy]]
675 * @return: function value
676 */
677static PyObject * runXY(COnionModel *self, PyObject *args) {
678        double qx_value, qy_value;
679        PyObject* pars;
680        int npars;
681       
682        // Get parameters
683       
684            // Reader parameter dictionary
685    self->model->thick_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell4") );
686    self->model->thick_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell5") );
687    self->model->thick_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell9") );
688    self->model->thick_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell7") );
689    self->model->sld_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_core0") );
690    self->model->rad_core0 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "rad_core0") );
691    self->model->A_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell10") );
692    self->model->thick_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell1") );
693    self->model->func_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell4") );
694    self->model->func_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell5") );
695    self->model->func_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell6") );
696    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
697    self->model->func_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell1") );
698    self->model->thick_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell10") );
699    self->model->func_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell3") );
700    self->model->func_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell8") );
701    self->model->func_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell9") );
702    self->model->sld_in_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell5") );
703    self->model->func_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell10") );
704    self->model->sld_in_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell4") );
705    self->model->sld_in_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell7") );
706    self->model->sld_out_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell9") );
707    self->model->sld_out_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell8") );
708    self->model->thick_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell6") );
709    self->model->sld_out_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell2") );
710    self->model->sld_in_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell9") );
711    self->model->sld_in_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell8") );
712    self->model->thick_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell2") );
713    self->model->thick_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell3") );
714    self->model->sld_out_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell1") );
715    self->model->sld_out_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell5") );
716    self->model->sld_out_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell3") );
717    self->model->sld_in_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell6") );
718    self->model->sld_in_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell1") );
719    self->model->sld_out_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell4") );
720    self->model->sld_in_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell3") );
721    self->model->sld_out_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell6") );
722    self->model->func_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell7") );
723    self->model->sld_out_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell7") );
724    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
725    self->model->n_shells = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_shells") );
726    self->model->sld_in_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell2") );
727    self->model->sld_solv = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solv") );
728    self->model->func_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "func_shell2") );
729    self->model->thick_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "thick_shell8") );
730    self->model->sld_out_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_out_shell10") );
731    self->model->sld_in_shell10 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_in_shell10") );
732    self->model->A_shell8 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell8") );
733    self->model->A_shell9 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell9") );
734    self->model->A_shell6 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell6") );
735    self->model->A_shell7 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell7") );
736    self->model->A_shell4 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell4") );
737    self->model->A_shell5 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell5") );
738    self->model->A_shell2 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell2") );
739    self->model->A_shell3 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell3") );
740    self->model->A_shell1 = PyFloat_AsDouble( PyDict_GetItemString(self->params, "A_shell1") );
741    // Read in dispersion parameters
742    PyObject* disp_dict;
743    DispersionVisitor* visitor = new DispersionVisitor();
744    disp_dict = PyDict_GetItemString(self->dispersion, "rad_core0");
745    self->model->rad_core0.dispersion->accept_as_destination(visitor, self->model->rad_core0.dispersion, disp_dict);
746    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell1");
747    self->model->thick_shell1.dispersion->accept_as_destination(visitor, self->model->thick_shell1.dispersion, disp_dict);
748    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell2");
749    self->model->thick_shell2.dispersion->accept_as_destination(visitor, self->model->thick_shell2.dispersion, disp_dict);
750    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell3");
751    self->model->thick_shell3.dispersion->accept_as_destination(visitor, self->model->thick_shell3.dispersion, disp_dict);
752    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell4");
753    self->model->thick_shell4.dispersion->accept_as_destination(visitor, self->model->thick_shell4.dispersion, disp_dict);
754    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell5");
755    self->model->thick_shell5.dispersion->accept_as_destination(visitor, self->model->thick_shell5.dispersion, disp_dict);
756    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell6");
757    self->model->thick_shell6.dispersion->accept_as_destination(visitor, self->model->thick_shell6.dispersion, disp_dict);
758    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell7");
759    self->model->thick_shell7.dispersion->accept_as_destination(visitor, self->model->thick_shell7.dispersion, disp_dict);
760    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell8");
761    self->model->thick_shell8.dispersion->accept_as_destination(visitor, self->model->thick_shell8.dispersion, disp_dict);
762    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell9");
763    self->model->thick_shell9.dispersion->accept_as_destination(visitor, self->model->thick_shell9.dispersion, disp_dict);
764    disp_dict = PyDict_GetItemString(self->dispersion, "thick_shell10");
765    self->model->thick_shell10.dispersion->accept_as_destination(visitor, self->model->thick_shell10.dispersion, disp_dict);
766
767       
768        // Get input and determine whether we have to supply a 1D or 2D return value.
769        if ( !PyArg_ParseTuple(args,"O",&pars) ) {
770            PyErr_SetString(COnionModelError, 
771                "COnionModel.run expects a q value.");
772                return NULL;
773        }
774         
775        // Check params
776        if( PyList_Check(pars)==1) {
777               
778                // Length of list should be 2 for I(qx, qy))
779            npars = PyList_GET_SIZE(pars); 
780            if(npars!=2) {
781                PyErr_SetString(COnionModelError, 
782                        "COnionModel.run expects a double or a list of dimension 2.");
783                return NULL;
784            }
785            // We have a vector q, get the qx and qy values at which
786            // to evaluate I(qx,qy)
787            qx_value = COnionModel_readDouble(PyList_GET_ITEM(pars,0));
788            qy_value = COnionModel_readDouble(PyList_GET_ITEM(pars,1));
789            return Py_BuildValue("d",(*(self->model))(qx_value,qy_value));
790
791        } else {
792
793                // We have a scalar q, we will evaluate I(q)
794                qx_value = COnionModel_readDouble(pars);               
795               
796                return Py_BuildValue("d",(*(self->model))(qx_value));
797        }       
798}
799
800static PyObject * reset(COnionModel *self, PyObject *args) {
801   
802
803    return Py_BuildValue("d",0.0);
804}
805
806static PyObject * set_dispersion(COnionModel *self, PyObject *args) {
807        PyObject * disp;
808        const char * par_name;
809
810        if ( !PyArg_ParseTuple(args,"sO", &par_name, &disp) ) {
811            PyErr_SetString(COnionModelError,
812                "COnionModel.set_dispersion expects a DispersionModel object.");
813                return NULL;
814        }
815        void *temp = PyCObject_AsVoidPtr(disp);
816        DispersionModel * dispersion = static_cast<DispersionModel *>(temp);
817
818
819        // Ugliness necessary to go from python to C
820            // TODO: refactor this
821    if (!strcmp(par_name, "rad_core0")) {
822        self->model->rad_core0.dispersion = dispersion;
823    } else    if (!strcmp(par_name, "thick_shell1")) {
824        self->model->thick_shell1.dispersion = dispersion;
825    } else    if (!strcmp(par_name, "thick_shell2")) {
826        self->model->thick_shell2.dispersion = dispersion;
827    } else    if (!strcmp(par_name, "thick_shell3")) {
828        self->model->thick_shell3.dispersion = dispersion;
829    } else    if (!strcmp(par_name, "thick_shell4")) {
830        self->model->thick_shell4.dispersion = dispersion;
831    } else    if (!strcmp(par_name, "thick_shell5")) {
832        self->model->thick_shell5.dispersion = dispersion;
833    } else    if (!strcmp(par_name, "thick_shell6")) {
834        self->model->thick_shell6.dispersion = dispersion;
835    } else    if (!strcmp(par_name, "thick_shell7")) {
836        self->model->thick_shell7.dispersion = dispersion;
837    } else    if (!strcmp(par_name, "thick_shell8")) {
838        self->model->thick_shell8.dispersion = dispersion;
839    } else    if (!strcmp(par_name, "thick_shell9")) {
840        self->model->thick_shell9.dispersion = dispersion;
841    } else    if (!strcmp(par_name, "thick_shell10")) {
842        self->model->thick_shell10.dispersion = dispersion;
843    } else {
844            PyErr_SetString(COnionModelError,
845                "COnionModel.set_dispersion expects a valid parameter name.");
846                return NULL;
847        }
848
849        DispersionVisitor* visitor = new DispersionVisitor();
850        PyObject * disp_dict = PyDict_New();
851        dispersion->accept_as_source(visitor, dispersion, disp_dict);
852        PyDict_SetItemString(self->dispersion, par_name, disp_dict);
853    return Py_BuildValue("i",1);
854}
855
856
857static PyMethodDef COnionModel_methods[] = {
858    {"run",      (PyCFunction)run     , METH_VARARGS,
859      "Evaluate the model at a given Q or Q, phi"},
860    {"runXY",      (PyCFunction)runXY     , METH_VARARGS,
861      "Evaluate the model at a given Q or Qx, Qy"},
862    {"calculate_ER",      (PyCFunction)calculate_ER     , METH_VARARGS,
863      "Evaluate the model at a given Q or Q, phi"},
864     
865    {"evalDistribution",  (PyCFunction)evalDistribution , METH_VARARGS,
866      "Evaluate the model at a given Q or Qx, Qy vector "},
867    {"reset",    (PyCFunction)reset   , METH_VARARGS,
868      "Reset pair correlation"},
869    {"set_dispersion",      (PyCFunction)set_dispersion     , METH_VARARGS,
870      "Set the dispersion model for a given parameter"},
871   {NULL}
872};
873
874static PyTypeObject COnionModelType = {
875    PyObject_HEAD_INIT(NULL)
876    0,                         /*ob_size*/
877    "COnionModel",             /*tp_name*/
878    sizeof(COnionModel),             /*tp_basicsize*/
879    0,                         /*tp_itemsize*/
880    (destructor)COnionModel_dealloc, /*tp_dealloc*/
881    0,                         /*tp_print*/
882    0,                         /*tp_getattr*/
883    0,                         /*tp_setattr*/
884    0,                         /*tp_compare*/
885    0,                         /*tp_repr*/
886    0,                         /*tp_as_number*/
887    0,                         /*tp_as_sequence*/
888    0,                         /*tp_as_mapping*/
889    0,                         /*tp_hash */
890    0,                         /*tp_call*/
891    0,                         /*tp_str*/
892    0,                         /*tp_getattro*/
893    0,                         /*tp_setattro*/
894    0,                         /*tp_as_buffer*/
895    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
896    "COnionModel objects",           /* tp_doc */
897    0,                         /* tp_traverse */
898    0,                         /* tp_clear */
899    0,                         /* tp_richcompare */
900    0,                         /* tp_weaklistoffset */
901    0,                         /* tp_iter */
902    0,                         /* tp_iternext */
903    COnionModel_methods,             /* tp_methods */
904    COnionModel_members,             /* tp_members */
905    0,                         /* tp_getset */
906    0,                         /* tp_base */
907    0,                         /* tp_dict */
908    0,                         /* tp_descr_get */
909    0,                         /* tp_descr_set */
910    0,                         /* tp_dictoffset */
911    (initproc)COnionModel_init,      /* tp_init */
912    0,                         /* tp_alloc */
913    COnionModel_new,                 /* tp_new */
914};
915
916
917//static PyMethodDef module_methods[] = {
918//    {NULL}
919//};
920
921/**
922 * Function used to add the model class to a module
923 * @param module: module to add the class to
924 */ 
925void addCOnionModel(PyObject *module) {
926        PyObject *d;
927       
928    if (PyType_Ready(&COnionModelType) < 0)
929        return;
930
931    Py_INCREF(&COnionModelType);
932    PyModule_AddObject(module, "COnionModel", (PyObject *)&COnionModelType);
933   
934    d = PyModule_GetDict(module);
935    COnionModelError = PyErr_NewException("COnionModel.error", NULL, NULL);
936    PyDict_SetItemString(d, "COnionModelError", COnionModelError);
937}
938
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