source: sasview/sansmodels/src/python_wrapper/CLamellarPSHGModel.cpp @ 31af069

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Last change on this file since 31af069 was 67424cd, checked in by Mathieu Doucet <doucetm@…>, 13 years ago

Reorganizing models in preparation of cpp cleanup
  • Property mode set to 100644
File size: 23.8 KB
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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/** CLamellarPSHGModel
16 *
17 * C extension
18 *
19 * WARNING: THIS FILE WAS GENERATED BY WRAPPERGENERATOR.PY
20 *          DO NOT MODIFY THIS FILE, MODIFY lamellarPS_HG.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 "lamellarPS_HG.h"
36}
37
38#include "models.hh"
39#include "dispersion_visitor.hh"
40
41/// Error object for raised exceptions
42static PyObject * CLamellarPSHGModelError = 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    LamellarPSHGModel * model;
54    /// Log for unit testing
55    PyObject * log;
56} CLamellarPSHGModel;
57
58
59static void
60CLamellarPSHGModel_dealloc(CLamellarPSHGModel* 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 *
72CLamellarPSHGModel_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
73{
74    CLamellarPSHGModel *self;
75   
76    self = (CLamellarPSHGModel *)type->tp_alloc(type, 0);
77   
78    return (PyObject *)self;
79}
80
81static int
82CLamellarPSHGModel_init(CLamellarPSHGModel *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 LamellarPSHGModel();
90       
91        // Initialize parameter dictionary
92        PyDict_SetItemString(self->params,"n_plates",Py_BuildValue("d",30.000000000000));
93        PyDict_SetItemString(self->params,"scale",Py_BuildValue("d",1.000000000000));
94        PyDict_SetItemString(self->params,"deltaT",Py_BuildValue("d",10.000000000000));
95        PyDict_SetItemString(self->params,"spacing",Py_BuildValue("d",40.000000000000));
96        PyDict_SetItemString(self->params,"sld_tail",Py_BuildValue("d",0.000000400000));
97        PyDict_SetItemString(self->params,"sld_solvent",Py_BuildValue("d",0.000006000000));
98        PyDict_SetItemString(self->params,"caille",Py_BuildValue("d",0.001000000000));
99        PyDict_SetItemString(self->params,"sld_head",Py_BuildValue("d",0.000002000000));
100        PyDict_SetItemString(self->params,"background",Py_BuildValue("d",0.001000000000));
101        PyDict_SetItemString(self->params,"deltaH",Py_BuildValue("d",2.000000000000));
102        // Initialize dispersion / averaging parameter dict
103        DispersionVisitor* visitor = new DispersionVisitor();
104        PyObject * disp_dict;
105        disp_dict = PyDict_New();
106        self->model->deltaT.dispersion->accept_as_source(visitor, self->model->deltaT.dispersion, disp_dict);
107        PyDict_SetItemString(self->dispersion, "deltaT", disp_dict);
108        disp_dict = PyDict_New();
109        self->model->deltaH.dispersion->accept_as_source(visitor, self->model->deltaH.dispersion, disp_dict);
110        PyDict_SetItemString(self->dispersion, "deltaH", disp_dict);
111        disp_dict = PyDict_New();
112        self->model->spacing.dispersion->accept_as_source(visitor, self->model->spacing.dispersion, disp_dict);
113        PyDict_SetItemString(self->dispersion, "spacing", disp_dict);
114
115
116         
117        // Create empty log
118        self->log = PyDict_New();
119       
120       
121
122    }
123    return 0;
124}
125
126static char name_params[] = "params";
127static char def_params[] = "Parameters";
128static char name_dispersion[] = "dispersion";
129static char def_dispersion[] = "Dispersion parameters";
130static char name_log[] = "log";
131static char def_log[] = "Log";
132
133static PyMemberDef CLamellarPSHGModel_members[] = {
134    {name_params, T_OBJECT, offsetof(CLamellarPSHGModel, params), 0, def_params},
135        {name_dispersion, T_OBJECT, offsetof(CLamellarPSHGModel, dispersion), 0, def_dispersion},     
136    {name_log, T_OBJECT, offsetof(CLamellarPSHGModel, log), 0, def_log},
137    {NULL}  /* Sentinel */
138};
139
140/** Read double from PyObject
141    @param p PyObject
142    @return double
143*/
144double CLamellarPSHGModel_readDouble(PyObject *p) {
145    if (PyFloat_Check(p)==1) {
146        return (double)(((PyFloatObject *)(p))->ob_fval);
147    } else if (PyInt_Check(p)==1) {
148        return (double)(((PyIntObject *)(p))->ob_ival);
149    } else if (PyLong_Check(p)==1) {
150        return (double)PyLong_AsLong(p);
151    } else {
152        return 0.0;
153    }
154}
155/**
156 * Function to call to evaluate model
157 * @param args: input numpy array q[]
158 * @return: numpy array object
159 */
160 
161static PyObject *evaluateOneDim(LamellarPSHGModel* model, PyArrayObject *q){
162    PyArrayObject *result;
163   
164    // Check validity of array q , q must be of dimension 1, an array of double
165    if (q->nd != 1 || q->descr->type_num != PyArray_DOUBLE)
166    {
167        //const char * message= "Invalid array: q->nd=%d,type_num=%d\n",q->nd,q->descr->type_num;
168        //PyErr_SetString(PyExc_ValueError , message);
169        return NULL;
170    }
171    result = (PyArrayObject *)PyArray_FromDims(q->nd, (int *)(q->dimensions), PyArray_DOUBLE);
172        if (result == NULL) {
173        const char * message= "Could not create result ";
174        PyErr_SetString(PyExc_RuntimeError , message);
175                return NULL;
176        }
177#pragma omp parallel for
178         for (int i = 0; i < q->dimensions[0]; i++){
179      double q_value  = *(double *)(q->data + i*q->strides[0]);
180      double *result_value = (double *)(result->data + i*result->strides[0]);
181      *result_value =(*model)(q_value);
182        }
183    return PyArray_Return(result); 
184 }
185
186 /**
187 * Function to call to evaluate model
188 * @param args: input numpy array  [x[],y[]]
189 * @return: numpy array object
190 */
191 static PyObject * evaluateTwoDimXY( LamellarPSHGModel* model, 
192                              PyArrayObject *x, PyArrayObject *y)
193 {
194    PyArrayObject *result;
195    int x_len, y_len, dims[1];
196    //check validity of input vectors
197    if (x->nd != 1 || x->descr->type_num != PyArray_DOUBLE
198        || y->nd != 1 || y->descr->type_num != PyArray_DOUBLE
199        || y->dimensions[0] != x->dimensions[0]){
200        const char * message= "evaluateTwoDimXY  expect 2 numpy arrays";
201        PyErr_SetString(PyExc_ValueError , message); 
202        return NULL;
203    }
204   
205        if (PyArray_Check(x) && PyArray_Check(y)) {
206               
207            x_len = dims[0]= x->dimensions[0];
208        y_len = dims[0]= y->dimensions[0];
209           
210            // Make a new double matrix of same dims
211        result=(PyArrayObject *) PyArray_FromDims(1,dims,NPY_DOUBLE);
212        if (result == NULL){
213            const char * message= "Could not create result ";
214        PyErr_SetString(PyExc_RuntimeError , message);
215            return NULL;
216            }
217       
218        /* Do the calculation. */
219#pragma omp parallel for
220        for (int i=0; i< x_len; i++) {
221            double x_value = *(double *)(x->data + i*x->strides[0]);
222                    double y_value = *(double *)(y->data + i*y->strides[0]);
223                        double *result_value = (double *)(result->data +
224                              i*result->strides[0]);
225                        *result_value = (*model)(x_value, y_value);
226        }           
227        return PyArray_Return(result); 
228       
229        }else{
230                    PyErr_SetString(CLamellarPSHGModelError, 
231                   "CLamellarPSHGModel.evaluateTwoDimXY couldn't run.");
232                return NULL;
233                }       
234}
235/**
236 *  evalDistribution function evaluate a model function with input vector
237 *  @param args: input q as vector or [qx, qy] where qx, qy are vectors
238 *
239 */ 
240static PyObject * evalDistribution(CLamellarPSHGModel *self, PyObject *args){
241        PyObject *qx, *qy;
242        PyArrayObject * pars;
243        int npars ,mpars;
244       
245        // Get parameters
246       
247            // Reader parameter dictionary
248    self->model->n_plates = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_plates") );
249    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
250    self->model->deltaT = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaT") );
251    self->model->spacing = PyFloat_AsDouble( PyDict_GetItemString(self->params, "spacing") );
252    self->model->sld_tail = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_tail") );
253    self->model->sld_solvent = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solvent") );
254    self->model->caille = PyFloat_AsDouble( PyDict_GetItemString(self->params, "caille") );
255    self->model->sld_head = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_head") );
256    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
257    self->model->deltaH = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaH") );
258    // Read in dispersion parameters
259    PyObject* disp_dict;
260    DispersionVisitor* visitor = new DispersionVisitor();
261    disp_dict = PyDict_GetItemString(self->dispersion, "deltaT");
262    self->model->deltaT.dispersion->accept_as_destination(visitor, self->model->deltaT.dispersion, disp_dict);
263    disp_dict = PyDict_GetItemString(self->dispersion, "deltaH");
264    self->model->deltaH.dispersion->accept_as_destination(visitor, self->model->deltaH.dispersion, disp_dict);
265    disp_dict = PyDict_GetItemString(self->dispersion, "spacing");
266    self->model->spacing.dispersion->accept_as_destination(visitor, self->model->spacing.dispersion, disp_dict);
267
268       
269        // Get input and determine whether we have to supply a 1D or 2D return value.
270        if ( !PyArg_ParseTuple(args,"O",&pars) ) {
271            PyErr_SetString(CLamellarPSHGModelError, 
272                "CLamellarPSHGModel.evalDistribution expects a q value.");
273                return NULL;
274        }
275    // Check params
276       
277    if(PyArray_Check(pars)==1) {
278               
279            // Length of list should 1 or 2
280            npars = pars->nd; 
281            if(npars==1) {
282                // input is a numpy array
283                if (PyArray_Check(pars)) {
284                        return evaluateOneDim(self->model, (PyArrayObject*)pars); 
285                    }
286                }else{
287                    PyErr_SetString(CLamellarPSHGModelError, 
288                   "CLamellarPSHGModel.evalDistribution expect numpy array of one dimension.");
289                return NULL;
290                }
291    }else if( PyList_Check(pars)==1) {
292        // Length of list should be 2 for I(qx,qy)
293            mpars = PyList_GET_SIZE(pars); 
294            if(mpars!=2) {
295                PyErr_SetString(CLamellarPSHGModelError, 
296                        "CLamellarPSHGModel.evalDistribution expects a list of dimension 2.");
297                return NULL;
298            }
299             qx = PyList_GET_ITEM(pars,0);
300             qy = PyList_GET_ITEM(pars,1);
301             if (PyArray_Check(qx) && PyArray_Check(qy)) {
302                 return evaluateTwoDimXY(self->model, (PyArrayObject*)qx,
303                           (PyArrayObject*)qy);
304                 }else{
305                    PyErr_SetString(CLamellarPSHGModelError, 
306                   "CLamellarPSHGModel.evalDistribution expect 2 numpy arrays in list.");
307                return NULL;
308             }
309        }
310        PyErr_SetString(CLamellarPSHGModelError, 
311                   "CLamellarPSHGModel.evalDistribution couln't be run.");
312        return NULL;
313       
314}
315
316/**
317 * Function to call to evaluate model
318 * @param args: input q or [q,phi]
319 * @return: function value
320 */
321static PyObject * run(CLamellarPSHGModel *self, PyObject *args) {
322        double q_value, phi_value;
323        PyObject* pars;
324        int npars;
325       
326        // Get parameters
327       
328            // Reader parameter dictionary
329    self->model->n_plates = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_plates") );
330    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
331    self->model->deltaT = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaT") );
332    self->model->spacing = PyFloat_AsDouble( PyDict_GetItemString(self->params, "spacing") );
333    self->model->sld_tail = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_tail") );
334    self->model->sld_solvent = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solvent") );
335    self->model->caille = PyFloat_AsDouble( PyDict_GetItemString(self->params, "caille") );
336    self->model->sld_head = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_head") );
337    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
338    self->model->deltaH = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaH") );
339    // Read in dispersion parameters
340    PyObject* disp_dict;
341    DispersionVisitor* visitor = new DispersionVisitor();
342    disp_dict = PyDict_GetItemString(self->dispersion, "deltaT");
343    self->model->deltaT.dispersion->accept_as_destination(visitor, self->model->deltaT.dispersion, disp_dict);
344    disp_dict = PyDict_GetItemString(self->dispersion, "deltaH");
345    self->model->deltaH.dispersion->accept_as_destination(visitor, self->model->deltaH.dispersion, disp_dict);
346    disp_dict = PyDict_GetItemString(self->dispersion, "spacing");
347    self->model->spacing.dispersion->accept_as_destination(visitor, self->model->spacing.dispersion, disp_dict);
348
349       
350        // Get input and determine whether we have to supply a 1D or 2D return value.
351        if ( !PyArg_ParseTuple(args,"O",&pars) ) {
352            PyErr_SetString(CLamellarPSHGModelError, 
353                "CLamellarPSHGModel.run expects a q value.");
354                return NULL;
355        }
356         
357        // Check params
358        if( PyList_Check(pars)==1) {
359               
360                // Length of list should be 2 for I(q,phi)
361            npars = PyList_GET_SIZE(pars); 
362            if(npars!=2) {
363                PyErr_SetString(CLamellarPSHGModelError, 
364                        "CLamellarPSHGModel.run expects a double or a list of dimension 2.");
365                return NULL;
366            }
367            // We have a vector q, get the q and phi values at which
368            // to evaluate I(q,phi)
369            q_value = CLamellarPSHGModel_readDouble(PyList_GET_ITEM(pars,0));
370            phi_value = CLamellarPSHGModel_readDouble(PyList_GET_ITEM(pars,1));
371            // Skip zero
372            if (q_value==0) {
373                return Py_BuildValue("d",0.0);
374            }
375                return Py_BuildValue("d",(*(self->model)).evaluate_rphi(q_value,phi_value));
376
377        } else {
378
379                // We have a scalar q, we will evaluate I(q)
380                q_value = CLamellarPSHGModel_readDouble(pars);         
381               
382                return Py_BuildValue("d",(*(self->model))(q_value));
383        }       
384}
385/**
386 * Function to call to calculate_ER
387 * @return: effective radius value
388 */
389static PyObject * calculate_ER(CLamellarPSHGModel *self) {
390
391        // Get parameters
392       
393            // Reader parameter dictionary
394    self->model->n_plates = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_plates") );
395    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
396    self->model->deltaT = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaT") );
397    self->model->spacing = PyFloat_AsDouble( PyDict_GetItemString(self->params, "spacing") );
398    self->model->sld_tail = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_tail") );
399    self->model->sld_solvent = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solvent") );
400    self->model->caille = PyFloat_AsDouble( PyDict_GetItemString(self->params, "caille") );
401    self->model->sld_head = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_head") );
402    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
403    self->model->deltaH = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaH") );
404    // Read in dispersion parameters
405    PyObject* disp_dict;
406    DispersionVisitor* visitor = new DispersionVisitor();
407    disp_dict = PyDict_GetItemString(self->dispersion, "deltaT");
408    self->model->deltaT.dispersion->accept_as_destination(visitor, self->model->deltaT.dispersion, disp_dict);
409    disp_dict = PyDict_GetItemString(self->dispersion, "deltaH");
410    self->model->deltaH.dispersion->accept_as_destination(visitor, self->model->deltaH.dispersion, disp_dict);
411    disp_dict = PyDict_GetItemString(self->dispersion, "spacing");
412    self->model->spacing.dispersion->accept_as_destination(visitor, self->model->spacing.dispersion, disp_dict);
413
414               
415        return Py_BuildValue("d",(*(self->model)).calculate_ER());
416
417}
418/**
419 * Function to call to evaluate model in cartesian coordinates
420 * @param args: input q or [qx, qy]]
421 * @return: function value
422 */
423static PyObject * runXY(CLamellarPSHGModel *self, PyObject *args) {
424        double qx_value, qy_value;
425        PyObject* pars;
426        int npars;
427       
428        // Get parameters
429       
430            // Reader parameter dictionary
431    self->model->n_plates = PyFloat_AsDouble( PyDict_GetItemString(self->params, "n_plates") );
432    self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") );
433    self->model->deltaT = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaT") );
434    self->model->spacing = PyFloat_AsDouble( PyDict_GetItemString(self->params, "spacing") );
435    self->model->sld_tail = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_tail") );
436    self->model->sld_solvent = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_solvent") );
437    self->model->caille = PyFloat_AsDouble( PyDict_GetItemString(self->params, "caille") );
438    self->model->sld_head = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sld_head") );
439    self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") );
440    self->model->deltaH = PyFloat_AsDouble( PyDict_GetItemString(self->params, "deltaH") );
441    // Read in dispersion parameters
442    PyObject* disp_dict;
443    DispersionVisitor* visitor = new DispersionVisitor();
444    disp_dict = PyDict_GetItemString(self->dispersion, "deltaT");
445    self->model->deltaT.dispersion->accept_as_destination(visitor, self->model->deltaT.dispersion, disp_dict);
446    disp_dict = PyDict_GetItemString(self->dispersion, "deltaH");
447    self->model->deltaH.dispersion->accept_as_destination(visitor, self->model->deltaH.dispersion, disp_dict);
448    disp_dict = PyDict_GetItemString(self->dispersion, "spacing");
449    self->model->spacing.dispersion->accept_as_destination(visitor, self->model->spacing.dispersion, disp_dict);
450
451       
452        // Get input and determine whether we have to supply a 1D or 2D return value.
453        if ( !PyArg_ParseTuple(args,"O",&pars) ) {
454            PyErr_SetString(CLamellarPSHGModelError, 
455                "CLamellarPSHGModel.run expects a q value.");
456                return NULL;
457        }
458         
459        // Check params
460        if( PyList_Check(pars)==1) {
461               
462                // Length of list should be 2 for I(qx, qy))
463            npars = PyList_GET_SIZE(pars); 
464            if(npars!=2) {
465                PyErr_SetString(CLamellarPSHGModelError, 
466                        "CLamellarPSHGModel.run expects a double or a list of dimension 2.");
467                return NULL;
468            }
469            // We have a vector q, get the qx and qy values at which
470            // to evaluate I(qx,qy)
471            qx_value = CLamellarPSHGModel_readDouble(PyList_GET_ITEM(pars,0));
472            qy_value = CLamellarPSHGModel_readDouble(PyList_GET_ITEM(pars,1));
473            return Py_BuildValue("d",(*(self->model))(qx_value,qy_value));
474
475        } else {
476
477                // We have a scalar q, we will evaluate I(q)
478                qx_value = CLamellarPSHGModel_readDouble(pars);         
479               
480                return Py_BuildValue("d",(*(self->model))(qx_value));
481        }       
482}
483
484static PyObject * reset(CLamellarPSHGModel *self, PyObject *args) {
485   
486
487    return Py_BuildValue("d",0.0);
488}
489
490static PyObject * set_dispersion(CLamellarPSHGModel *self, PyObject *args) {
491        PyObject * disp;
492        const char * par_name;
493
494        if ( !PyArg_ParseTuple(args,"sO", &par_name, &disp) ) {
495            PyErr_SetString(CLamellarPSHGModelError,
496                "CLamellarPSHGModel.set_dispersion expects a DispersionModel object.");
497                return NULL;
498        }
499        void *temp = PyCObject_AsVoidPtr(disp);
500        DispersionModel * dispersion = static_cast<DispersionModel *>(temp);
501
502
503        // Ugliness necessary to go from python to C
504            // TODO: refactor this
505    if (!strcmp(par_name, "deltaT")) {
506        self->model->deltaT.dispersion = dispersion;
507    } else    if (!strcmp(par_name, "deltaH")) {
508        self->model->deltaH.dispersion = dispersion;
509    } else    if (!strcmp(par_name, "spacing")) {
510        self->model->spacing.dispersion = dispersion;
511    } else {
512            PyErr_SetString(CLamellarPSHGModelError,
513                "CLamellarPSHGModel.set_dispersion expects a valid parameter name.");
514                return NULL;
515        }
516
517        DispersionVisitor* visitor = new DispersionVisitor();
518        PyObject * disp_dict = PyDict_New();
519        dispersion->accept_as_source(visitor, dispersion, disp_dict);
520        PyDict_SetItemString(self->dispersion, par_name, disp_dict);
521    return Py_BuildValue("i",1);
522}
523
524
525static PyMethodDef CLamellarPSHGModel_methods[] = {
526    {"run",      (PyCFunction)run     , METH_VARARGS,
527      "Evaluate the model at a given Q or Q, phi"},
528    {"runXY",      (PyCFunction)runXY     , METH_VARARGS,
529      "Evaluate the model at a given Q or Qx, Qy"},
530    {"calculate_ER",      (PyCFunction)calculate_ER     , METH_VARARGS,
531      "Evaluate the model at a given Q or Q, phi"},
532     
533    {"evalDistribution",  (PyCFunction)evalDistribution , METH_VARARGS,
534      "Evaluate the model at a given Q or Qx, Qy vector "},
535    {"reset",    (PyCFunction)reset   , METH_VARARGS,
536      "Reset pair correlation"},
537    {"set_dispersion",      (PyCFunction)set_dispersion     , METH_VARARGS,
538      "Set the dispersion model for a given parameter"},
539   {NULL}
540};
541
542static PyTypeObject CLamellarPSHGModelType = {
543    PyObject_HEAD_INIT(NULL)
544    0,                         /*ob_size*/
545    "CLamellarPSHGModel",             /*tp_name*/
546    sizeof(CLamellarPSHGModel),             /*tp_basicsize*/
547    0,                         /*tp_itemsize*/
548    (destructor)CLamellarPSHGModel_dealloc, /*tp_dealloc*/
549    0,                         /*tp_print*/
550    0,                         /*tp_getattr*/
551    0,                         /*tp_setattr*/
552    0,                         /*tp_compare*/
553    0,                         /*tp_repr*/
554    0,                         /*tp_as_number*/
555    0,                         /*tp_as_sequence*/
556    0,                         /*tp_as_mapping*/
557    0,                         /*tp_hash */
558    0,                         /*tp_call*/
559    0,                         /*tp_str*/
560    0,                         /*tp_getattro*/
561    0,                         /*tp_setattro*/
562    0,                         /*tp_as_buffer*/
563    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
564    "CLamellarPSHGModel objects",           /* tp_doc */
565    0,                         /* tp_traverse */
566    0,                         /* tp_clear */
567    0,                         /* tp_richcompare */
568    0,                         /* tp_weaklistoffset */
569    0,                         /* tp_iter */
570    0,                         /* tp_iternext */
571    CLamellarPSHGModel_methods,             /* tp_methods */
572    CLamellarPSHGModel_members,             /* tp_members */
573    0,                         /* tp_getset */
574    0,                         /* tp_base */
575    0,                         /* tp_dict */
576    0,                         /* tp_descr_get */
577    0,                         /* tp_descr_set */
578    0,                         /* tp_dictoffset */
579    (initproc)CLamellarPSHGModel_init,      /* tp_init */
580    0,                         /* tp_alloc */
581    CLamellarPSHGModel_new,                 /* tp_new */
582};
583
584
585//static PyMethodDef module_methods[] = {
586//    {NULL}
587//};
588
589/**
590 * Function used to add the model class to a module
591 * @param module: module to add the class to
592 */ 
593void addCLamellarPSHGModel(PyObject *module) {
594        PyObject *d;
595       
596    if (PyType_Ready(&CLamellarPSHGModelType) < 0)
597        return;
598
599    Py_INCREF(&CLamellarPSHGModelType);
600    PyModule_AddObject(module, "CLamellarPSHGModel", (PyObject *)&CLamellarPSHGModelType);
601   
602    d = PyModule_GetDict(module);
603    static char error_name[] = "CLamellarPSHGModel.error";
604    CLamellarPSHGModelError = PyErr_NewException(error_name, NULL, NULL);
605    PyDict_SetItemString(d, "CLamellarPSHGModelError", CLamellarPSHGModelError);
606}
607
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