1 | /** |
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2 | This software was developed by the University of Tennessee as part of the |
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3 | Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
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4 | project funded by the US National Science Foundation. |
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5 | |
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6 | If you use DANSE applications to do scientific research that leads to |
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7 | publication, we ask that you acknowledge the use of the software with the |
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8 | following sentence: |
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9 | |
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10 | "This work benefited from DANSE software developed under NSF award DMR-0520547." |
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11 | |
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12 | copyright 2008, University of Tennessee |
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13 | */ |
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14 | |
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15 | /** CLamellarModel |
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16 | * |
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17 | * C extension |
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18 | * |
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19 | * WARNING: THIS FILE WAS GENERATED BY WRAPPERGENERATOR.PY |
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20 | * DO NOT MODIFY THIS FILE, MODIFY lamellar.h |
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21 | * AND RE-RUN THE GENERATOR SCRIPT |
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22 | * |
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23 | */ |
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24 | |
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25 | extern "C" { |
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26 | #include <Python.h> |
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27 | #include "structmember.h" |
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28 | #include <stdio.h> |
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29 | #include <stdlib.h> |
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30 | #include <math.h> |
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31 | #include <time.h> |
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32 | #include "lamellar.h" |
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33 | } |
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34 | |
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35 | #include "models.hh" |
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36 | #include "dispersion_visitor.hh" |
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37 | |
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38 | /// Error object for raised exceptions |
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39 | static PyObject * CLamellarModelError = NULL; |
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40 | |
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41 | |
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42 | // Class definition |
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43 | typedef struct { |
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44 | PyObject_HEAD |
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45 | /// Parameters |
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46 | PyObject * params; |
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47 | /// Dispersion parameters |
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48 | PyObject * dispersion; |
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49 | /// Underlying model object |
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50 | LamellarModel * model; |
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51 | /// Log for unit testing |
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52 | PyObject * log; |
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53 | } CLamellarModel; |
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54 | |
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55 | |
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56 | static void |
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57 | CLamellarModel_dealloc(CLamellarModel* self) |
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58 | { |
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59 | self->ob_type->tp_free((PyObject*)self); |
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60 | |
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61 | |
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62 | } |
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63 | |
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64 | static PyObject * |
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65 | CLamellarModel_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
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66 | { |
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67 | CLamellarModel *self; |
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68 | |
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69 | self = (CLamellarModel *)type->tp_alloc(type, 0); |
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70 | |
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71 | return (PyObject *)self; |
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72 | } |
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73 | |
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74 | static int |
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75 | CLamellarModel_init(CLamellarModel *self, PyObject *args, PyObject *kwds) |
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76 | { |
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77 | if (self != NULL) { |
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78 | |
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79 | // Create parameters |
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80 | self->params = PyDict_New(); |
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81 | self->dispersion = PyDict_New(); |
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82 | self->model = new LamellarModel(); |
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83 | |
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84 | // Initialize parameter dictionary |
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85 | PyDict_SetItemString(self->params,"scale",Py_BuildValue("d",1.000000)); |
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86 | PyDict_SetItemString(self->params,"sigma",Py_BuildValue("d",0.150000)); |
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87 | PyDict_SetItemString(self->params,"background",Py_BuildValue("d",0.000000)); |
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88 | PyDict_SetItemString(self->params,"contrast",Py_BuildValue("d",0.000005)); |
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89 | PyDict_SetItemString(self->params,"delta",Py_BuildValue("d",50.000000)); |
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90 | // Initialize dispersion / averaging parameter dict |
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91 | DispersionVisitor* visitor = new DispersionVisitor(); |
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92 | PyObject * disp_dict; |
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93 | disp_dict = PyDict_New(); |
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94 | self->model->delta.dispersion->accept_as_source(visitor, self->model->delta.dispersion, disp_dict); |
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95 | PyDict_SetItemString(self->dispersion, "delta", disp_dict); |
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96 | |
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97 | |
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98 | |
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99 | // Create empty log |
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100 | self->log = PyDict_New(); |
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101 | |
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102 | |
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103 | |
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104 | } |
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105 | return 0; |
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106 | } |
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107 | |
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108 | static PyMemberDef CLamellarModel_members[] = { |
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109 | {"params", T_OBJECT, offsetof(CLamellarModel, params), 0, |
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110 | "Parameters"}, |
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111 | {"dispersion", T_OBJECT, offsetof(CLamellarModel, dispersion), 0, |
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112 | "Dispersion parameters"}, |
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113 | {"log", T_OBJECT, offsetof(CLamellarModel, log), 0, |
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114 | "Log"}, |
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115 | {NULL} /* Sentinel */ |
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116 | }; |
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117 | |
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118 | /** Read double from PyObject |
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119 | @param p PyObject |
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120 | @return double |
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121 | */ |
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122 | double CLamellarModel_readDouble(PyObject *p) { |
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123 | if (PyFloat_Check(p)==1) { |
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124 | return (double)(((PyFloatObject *)(p))->ob_fval); |
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125 | } else if (PyInt_Check(p)==1) { |
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126 | return (double)(((PyIntObject *)(p))->ob_ival); |
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127 | } else if (PyLong_Check(p)==1) { |
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128 | return (double)PyLong_AsLong(p); |
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129 | } else { |
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130 | return 0.0; |
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131 | } |
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132 | } |
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133 | |
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134 | |
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135 | /** |
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136 | * Function to call to evaluate model |
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137 | * @param args: input q or [q,phi] |
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138 | * @return: function value |
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139 | */ |
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140 | static PyObject * run(CLamellarModel *self, PyObject *args) { |
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141 | double q_value, phi_value; |
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142 | PyObject* pars; |
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143 | int npars; |
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144 | |
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145 | // Get parameters |
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146 | |
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147 | // Reader parameter dictionary |
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148 | self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") ); |
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149 | self->model->sigma = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sigma") ); |
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150 | self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") ); |
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151 | self->model->contrast = PyFloat_AsDouble( PyDict_GetItemString(self->params, "contrast") ); |
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152 | self->model->delta = PyFloat_AsDouble( PyDict_GetItemString(self->params, "delta") ); |
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153 | // Read in dispersion parameters |
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154 | PyObject* disp_dict; |
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155 | DispersionVisitor* visitor = new DispersionVisitor(); |
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156 | disp_dict = PyDict_GetItemString(self->dispersion, "delta"); |
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157 | self->model->delta.dispersion->accept_as_destination(visitor, self->model->delta.dispersion, disp_dict); |
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158 | |
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159 | |
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160 | // Get input and determine whether we have to supply a 1D or 2D return value. |
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161 | if ( !PyArg_ParseTuple(args,"O",&pars) ) { |
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162 | PyErr_SetString(CLamellarModelError, |
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163 | "CLamellarModel.run expects a q value."); |
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164 | return NULL; |
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165 | } |
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166 | |
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167 | // Check params |
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168 | if( PyList_Check(pars)==1) { |
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169 | |
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170 | // Length of list should be 2 for I(q,phi) |
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171 | npars = PyList_GET_SIZE(pars); |
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172 | if(npars!=2) { |
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173 | PyErr_SetString(CLamellarModelError, |
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174 | "CLamellarModel.run expects a double or a list of dimension 2."); |
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175 | return NULL; |
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176 | } |
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177 | // We have a vector q, get the q and phi values at which |
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178 | // to evaluate I(q,phi) |
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179 | q_value = CLamellarModel_readDouble(PyList_GET_ITEM(pars,0)); |
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180 | phi_value = CLamellarModel_readDouble(PyList_GET_ITEM(pars,1)); |
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181 | // Skip zero |
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182 | if (q_value==0) { |
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183 | return Py_BuildValue("d",0.0); |
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184 | } |
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185 | return Py_BuildValue("d",(*(self->model)).evaluate_rphi(q_value,phi_value)); |
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186 | |
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187 | } else { |
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188 | |
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189 | // We have a scalar q, we will evaluate I(q) |
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190 | q_value = CLamellarModel_readDouble(pars); |
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191 | |
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192 | return Py_BuildValue("d",(*(self->model))(q_value)); |
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193 | } |
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194 | } |
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195 | |
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196 | /** |
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197 | * Function to call to evaluate model in cartesian coordinates |
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198 | * @param args: input q or [qx, qy]] |
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199 | * @return: function value |
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200 | */ |
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201 | static PyObject * runXY(CLamellarModel *self, PyObject *args) { |
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202 | double qx_value, qy_value; |
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203 | PyObject* pars; |
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204 | int npars; |
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205 | |
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206 | // Get parameters |
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207 | |
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208 | // Reader parameter dictionary |
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209 | self->model->scale = PyFloat_AsDouble( PyDict_GetItemString(self->params, "scale") ); |
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210 | self->model->sigma = PyFloat_AsDouble( PyDict_GetItemString(self->params, "sigma") ); |
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211 | self->model->background = PyFloat_AsDouble( PyDict_GetItemString(self->params, "background") ); |
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212 | self->model->contrast = PyFloat_AsDouble( PyDict_GetItemString(self->params, "contrast") ); |
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213 | self->model->delta = PyFloat_AsDouble( PyDict_GetItemString(self->params, "delta") ); |
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214 | // Read in dispersion parameters |
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215 | PyObject* disp_dict; |
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216 | DispersionVisitor* visitor = new DispersionVisitor(); |
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217 | disp_dict = PyDict_GetItemString(self->dispersion, "delta"); |
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218 | self->model->delta.dispersion->accept_as_destination(visitor, self->model->delta.dispersion, disp_dict); |
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219 | |
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220 | |
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221 | // Get input and determine whether we have to supply a 1D or 2D return value. |
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222 | if ( !PyArg_ParseTuple(args,"O",&pars) ) { |
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223 | PyErr_SetString(CLamellarModelError, |
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224 | "CLamellarModel.run expects a q value."); |
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225 | return NULL; |
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226 | } |
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227 | |
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228 | // Check params |
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229 | if( PyList_Check(pars)==1) { |
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230 | |
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231 | // Length of list should be 2 for I(qx, qy)) |
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232 | npars = PyList_GET_SIZE(pars); |
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233 | if(npars!=2) { |
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234 | PyErr_SetString(CLamellarModelError, |
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235 | "CLamellarModel.run expects a double or a list of dimension 2."); |
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236 | return NULL; |
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237 | } |
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238 | // We have a vector q, get the qx and qy values at which |
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239 | // to evaluate I(qx,qy) |
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240 | qx_value = CLamellarModel_readDouble(PyList_GET_ITEM(pars,0)); |
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241 | qy_value = CLamellarModel_readDouble(PyList_GET_ITEM(pars,1)); |
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242 | return Py_BuildValue("d",(*(self->model))(qx_value,qy_value)); |
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243 | |
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244 | } else { |
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245 | |
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246 | // We have a scalar q, we will evaluate I(q) |
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247 | qx_value = CLamellarModel_readDouble(pars); |
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248 | |
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249 | return Py_BuildValue("d",(*(self->model))(qx_value)); |
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250 | } |
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251 | } |
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252 | |
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253 | static PyObject * reset(CLamellarModel *self, PyObject *args) { |
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254 | |
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255 | |
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256 | return Py_BuildValue("d",0.0); |
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257 | } |
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258 | |
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259 | static PyObject * set_dispersion(CLamellarModel *self, PyObject *args) { |
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260 | PyObject * disp; |
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261 | const char * par_name; |
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262 | |
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263 | if ( !PyArg_ParseTuple(args,"sO", &par_name, &disp) ) { |
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264 | PyErr_SetString(CLamellarModelError, |
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265 | "CLamellarModel.set_dispersion expects a DispersionModel object."); |
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266 | return NULL; |
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267 | } |
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268 | void *temp = PyCObject_AsVoidPtr(disp); |
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269 | DispersionModel * dispersion = static_cast<DispersionModel *>(temp); |
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270 | |
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271 | |
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272 | // Ugliness necessary to go from python to C |
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273 | // TODO: refactor this |
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274 | if (!strcmp(par_name, "delta")) { |
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275 | self->model->delta.dispersion = dispersion; |
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276 | } else { |
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277 | PyErr_SetString(CLamellarModelError, |
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278 | "CLamellarModel.set_dispersion expects a valid parameter name."); |
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279 | return NULL; |
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280 | } |
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281 | |
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282 | DispersionVisitor* visitor = new DispersionVisitor(); |
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283 | PyObject * disp_dict = PyDict_New(); |
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284 | dispersion->accept_as_source(visitor, dispersion, disp_dict); |
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285 | PyDict_SetItemString(self->dispersion, par_name, disp_dict); |
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286 | return Py_BuildValue("i",1); |
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287 | } |
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288 | |
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289 | |
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290 | static PyMethodDef CLamellarModel_methods[] = { |
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291 | {"run", (PyCFunction)run , METH_VARARGS, |
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292 | "Evaluate the model at a given Q or Q, phi"}, |
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293 | {"runXY", (PyCFunction)runXY , METH_VARARGS, |
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294 | "Evaluate the model at a given Q or Qx, Qy"}, |
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295 | {"reset", (PyCFunction)reset , METH_VARARGS, |
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296 | "Reset pair correlation"}, |
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297 | {"set_dispersion", (PyCFunction)set_dispersion , METH_VARARGS, |
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298 | "Set the dispersion model for a given parameter"}, |
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299 | {NULL} |
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300 | }; |
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301 | |
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302 | static PyTypeObject CLamellarModelType = { |
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303 | PyObject_HEAD_INIT(NULL) |
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304 | 0, /*ob_size*/ |
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305 | "CLamellarModel", /*tp_name*/ |
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306 | sizeof(CLamellarModel), /*tp_basicsize*/ |
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307 | 0, /*tp_itemsize*/ |
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308 | (destructor)CLamellarModel_dealloc, /*tp_dealloc*/ |
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309 | 0, /*tp_print*/ |
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310 | 0, /*tp_getattr*/ |
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311 | 0, /*tp_setattr*/ |
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312 | 0, /*tp_compare*/ |
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313 | 0, /*tp_repr*/ |
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314 | 0, /*tp_as_number*/ |
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315 | 0, /*tp_as_sequence*/ |
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316 | 0, /*tp_as_mapping*/ |
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317 | 0, /*tp_hash */ |
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318 | 0, /*tp_call*/ |
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319 | 0, /*tp_str*/ |
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320 | 0, /*tp_getattro*/ |
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321 | 0, /*tp_setattro*/ |
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322 | 0, /*tp_as_buffer*/ |
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323 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ |
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324 | "CLamellarModel objects", /* tp_doc */ |
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325 | 0, /* tp_traverse */ |
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326 | 0, /* tp_clear */ |
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327 | 0, /* tp_richcompare */ |
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328 | 0, /* tp_weaklistoffset */ |
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329 | 0, /* tp_iter */ |
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330 | 0, /* tp_iternext */ |
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331 | CLamellarModel_methods, /* tp_methods */ |
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332 | CLamellarModel_members, /* tp_members */ |
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333 | 0, /* tp_getset */ |
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334 | 0, /* tp_base */ |
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335 | 0, /* tp_dict */ |
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336 | 0, /* tp_descr_get */ |
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337 | 0, /* tp_descr_set */ |
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338 | 0, /* tp_dictoffset */ |
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339 | (initproc)CLamellarModel_init, /* tp_init */ |
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340 | 0, /* tp_alloc */ |
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341 | CLamellarModel_new, /* tp_new */ |
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342 | }; |
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343 | |
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344 | |
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345 | static PyMethodDef module_methods[] = { |
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346 | {NULL} |
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347 | }; |
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348 | |
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349 | /** |
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350 | * Function used to add the model class to a module |
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351 | * @param module: module to add the class to |
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352 | */ |
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353 | void addCLamellarModel(PyObject *module) { |
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354 | PyObject *d; |
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355 | |
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356 | if (PyType_Ready(&CLamellarModelType) < 0) |
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357 | return; |
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358 | |
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359 | Py_INCREF(&CLamellarModelType); |
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360 | PyModule_AddObject(module, "CLamellarModel", (PyObject *)&CLamellarModelType); |
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361 | |
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362 | d = PyModule_GetDict(module); |
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363 | CLamellarModelError = PyErr_NewException("CLamellarModel.error", NULL, NULL); |
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364 | PyDict_SetItemString(d, "CLamellarModelError", CLamellarModelError); |
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365 | } |
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366 | |
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