1 | #!/usr/bin/env python |
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2 | |
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3 | import unittest |
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4 | from math import sqrt, pi |
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5 | |
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6 | |
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7 | from quantity import * |
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8 | from config import epsilon |
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9 | from Numeric import allclose, array, ones, Float |
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10 | |
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11 | |
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12 | #Aux for least_squares example |
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13 | def linear_function(point): |
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14 | point = array(point) |
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15 | return point[:,0]+point[:,1] |
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16 | |
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17 | |
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18 | class Test_Quantity(unittest.TestCase): |
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19 | def setUp(self): |
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20 | from domain import Domain |
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21 | |
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22 | a = [0.0, 0.0] |
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23 | b = [0.0, 2.0] |
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24 | c = [2.0, 0.0] |
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25 | d = [0.0, 4.0] |
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26 | e = [2.0, 2.0] |
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27 | f = [4.0, 0.0] |
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28 | |
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29 | points = [a, b, c, d, e, f] |
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30 | |
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31 | #bac, bce, ecf, dbe |
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32 | elements = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
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33 | |
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34 | self.mesh1 = Domain(points[:3], [elements[0]]) |
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35 | self.mesh1.check_integrity() |
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36 | |
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37 | self.mesh4 = Domain(points, elements) |
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38 | self.mesh4.check_integrity() |
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39 | |
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40 | def tearDown(self): |
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41 | pass |
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42 | #print " Tearing down" |
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43 | |
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44 | |
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45 | def test_creation(self): |
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46 | |
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47 | quantity = Quantity(self.mesh1, [[1,2,3]]) |
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48 | assert allclose(quantity.vertex_values, [[1.,2.,3.]]) |
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49 | |
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50 | try: |
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51 | quantity = Quantity() |
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52 | except: |
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53 | pass |
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54 | else: |
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55 | raise 'Should have raised empty quantity exception' |
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56 | |
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57 | |
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58 | try: |
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59 | quantity = Quantity([1,2,3]) |
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60 | except AssertionError: |
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61 | pass |
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62 | except: |
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63 | raise 'Should have raised "mising mesh object" error' |
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64 | |
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65 | |
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66 | def test_creation_zeros(self): |
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67 | |
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68 | quantity = Quantity(self.mesh1) |
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69 | assert allclose(quantity.vertex_values, [[0.,0.,0.]]) |
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70 | |
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71 | |
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72 | quantity = Quantity(self.mesh4) |
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73 | assert allclose(quantity.vertex_values, [[0.,0.,0.], [0.,0.,0.], |
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74 | [0.,0.,0.], [0.,0.,0.]]) |
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75 | |
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76 | |
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77 | def test_interpolation(self): |
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78 | quantity = Quantity(self.mesh1, [[1,2,3]]) |
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79 | assert allclose(quantity.centroid_values, [2.0]) #Centroid |
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80 | |
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81 | assert allclose(quantity.edge_values, [[2.5, 2.0, 1.5]]) |
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82 | |
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83 | |
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84 | def test_interpolation2(self): |
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85 | quantity = Conserved_quantity(self.mesh4, |
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86 | [[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]]) |
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87 | assert allclose(quantity.centroid_values, [2., 5., 3., 0.]) #Centroid |
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88 | |
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89 | |
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90 | quantity.extrapolate_second_order() |
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91 | |
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92 | #print quantity.vertex_values |
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93 | #assert allclose(quantity.vertex_values, [[2., 2., 2.], |
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94 | # [3.+2./3, 6.+2./3, 4.+2./3], |
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95 | # [7.5, 0.5, 1.], |
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96 | # [-5, -2.5, 7.5]]) |
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97 | |
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98 | assert allclose(quantity.vertex_values[1,:],[3.+2./3, 6.+2./3, 4.+2./3]) |
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99 | #FIXME: Work out the others |
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100 | |
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101 | |
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102 | #print quantity.edge_values |
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103 | assert allclose(quantity.edge_values, [[2.5, 2.0, 1.5], |
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104 | [5., 5., 5.], |
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105 | [4.5, 4.5, 0.], |
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106 | [3.0, -1.5, -1.5]]) |
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107 | |
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108 | def test_boundary_allocation(self): |
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109 | quantity = Conserved_quantity(self.mesh4, |
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110 | [[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]]) |
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111 | |
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112 | assert quantity.boundary_values.shape[0] == len(self.mesh4.boundary) |
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113 | |
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114 | |
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115 | def test_set_values(self): |
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116 | quantity = Quantity(self.mesh4) |
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117 | |
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118 | |
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119 | quantity.set_values([[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]], |
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120 | location = 'vertices') |
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121 | assert allclose(quantity.vertex_values, |
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122 | [[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]]) |
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123 | assert allclose(quantity.centroid_values, [2., 5., 3., 0.]) #Centroid |
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124 | assert allclose(quantity.edge_values, [[2.5, 2.0, 1.5], |
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125 | [5., 5., 5.], |
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126 | [4.5, 4.5, 0.], |
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127 | [3.0, -1.5, -1.5]]) |
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128 | |
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129 | |
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130 | #Test default |
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131 | quantity.set_values([[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]]) |
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132 | assert allclose(quantity.vertex_values, |
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133 | [[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]]) |
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134 | assert allclose(quantity.centroid_values, [2., 5., 3., 0.]) #Centroid |
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135 | assert allclose(quantity.edge_values, [[2.5, 2.0, 1.5], |
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136 | [5., 5., 5.], |
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137 | [4.5, 4.5, 0.], |
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138 | [3.0, -1.5, -1.5]]) |
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139 | |
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140 | #Test centroids |
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141 | quantity.set_values([1,2,3,4], location = 'centroids') |
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142 | assert allclose(quantity.centroid_values, [1., 2., 3., 4.]) #Centroid |
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143 | |
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144 | #Test edges |
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145 | quantity.set_values([[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]], |
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146 | location = 'edges') |
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147 | assert allclose(quantity.edge_values, |
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148 | [[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]]) |
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149 | |
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150 | #Test exceptions |
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151 | try: |
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152 | quantity.set_values([[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]], |
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153 | location = 'bas kamel tuba') |
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154 | except: |
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155 | pass |
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156 | |
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157 | |
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158 | try: |
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159 | quantity.set_values([[1,2,3], [0,0,9]]) |
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160 | except AssertionError: |
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161 | pass |
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162 | except: |
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163 | raise 'should have raised Assertionerror' |
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164 | |
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165 | |
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166 | |
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167 | def test_set_values_const(self): |
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168 | quantity = Quantity(self.mesh4) |
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169 | |
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170 | quantity.set_values(1.0, location = 'vertices') |
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171 | assert allclose(quantity.vertex_values, |
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172 | [[1,1,1], [1,1,1], [1,1,1], [1, 1, 1]]) |
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173 | |
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174 | assert allclose(quantity.centroid_values, [1, 1, 1, 1]) #Centroid |
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175 | assert allclose(quantity.edge_values, [[1, 1, 1], |
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176 | [1, 1, 1], |
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177 | [1, 1, 1], |
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178 | [1, 1, 1]]) |
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179 | |
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180 | |
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181 | quantity.set_values(2.0, location = 'centroids') |
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182 | assert allclose(quantity.centroid_values, [2, 2, 2, 2]) |
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183 | |
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184 | quantity.set_values(3.0, location = 'edges') |
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185 | assert allclose(quantity.edge_values, [[3, 3, 3], |
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186 | [3, 3, 3], |
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187 | [3, 3, 3], |
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188 | [3, 3, 3]]) |
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189 | |
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190 | |
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191 | def test_set_values_func(self): |
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192 | quantity = Quantity(self.mesh4) |
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193 | |
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194 | def f(x, y): |
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195 | return x+y |
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196 | |
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197 | quantity.set_values(f, location = 'vertices') |
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198 | #print "quantity.vertex_values",quantity.vertex_values |
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199 | assert allclose(quantity.vertex_values, |
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200 | [[2,0,2], [2,2,4], [4,2,4], [4,2,4]]) |
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201 | assert allclose(quantity.centroid_values, |
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202 | [4.0/3, 8.0/3, 10.0/3, 10.0/3]) |
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203 | assert allclose(quantity.edge_values, |
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204 | [[1,2,1], [3,3,2], [3,4,3], [3,4,3]]) |
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205 | |
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206 | |
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207 | quantity.set_values(f, location = 'centroids') |
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208 | assert allclose(quantity.centroid_values, |
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209 | [4.0/3, 8.0/3, 10.0/3, 10.0/3]) |
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210 | |
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211 | |
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212 | def test_integral(self): |
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213 | quantity = Quantity(self.mesh4) |
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214 | |
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215 | #Try constants first |
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216 | const = 5 |
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217 | quantity.set_values(const, location = 'vertices') |
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218 | #print 'Q', quantity.get_integral() |
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219 | |
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220 | assert allclose(quantity.get_integral(), self.mesh4.get_area() * const) |
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221 | |
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222 | #Try with a linear function |
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223 | def f(x, y): |
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224 | return x+y |
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225 | |
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226 | quantity.set_values(f, location = 'vertices') |
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227 | |
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228 | |
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229 | ref_integral = (4.0/3 + 8.0/3 + 10.0/3 + 10.0/3) * 2 |
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230 | |
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231 | assert allclose (quantity.get_integral(), ref_integral) |
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232 | |
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233 | |
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234 | |
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235 | def test_set_vertex_values(self): |
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236 | quantity = Quantity(self.mesh4) |
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237 | quantity.set_vertex_values([0,1,2,3,4,5]) |
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238 | |
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239 | assert allclose(quantity.vertex_values, |
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240 | [[1,0,2], [1,2,4], [4,2,5], [3,1,4]]) |
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241 | assert allclose(quantity.centroid_values, |
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242 | [1., 7./3, 11./3, 8./3]) #Centroid |
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243 | assert allclose(quantity.edge_values, [[1., 1.5, 0.5], |
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244 | [3., 2.5, 1.5], |
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245 | [3.5, 4.5, 3.], |
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246 | [2.5, 3.5, 2]]) |
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247 | |
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248 | |
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249 | def test_set_vertex_values_subset(self): |
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250 | quantity = Quantity(self.mesh4) |
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251 | quantity.set_vertex_values([0,1,2,3,4,5]) |
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252 | quantity.set_vertex_values([0,20,30,50], indices = [0,2,3,5]) |
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253 | |
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254 | assert allclose(quantity.vertex_values, |
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255 | [[1,0,20], [1,20,4], [4,20,50], [30,1,4]]) |
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256 | |
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257 | |
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258 | def test_set_vertex_values_using_general_interface(self): |
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259 | quantity = Quantity(self.mesh4) |
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260 | |
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261 | |
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262 | quantity.set_values([0,1,2,3,4,5]) |
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263 | |
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264 | |
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265 | assert allclose(quantity.vertex_values, |
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266 | [[1,0,2], [1,2,4], [4,2,5], [3,1,4]]) |
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267 | |
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268 | #Centroid |
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269 | assert allclose(quantity.centroid_values, [1., 7./3, 11./3, 8./3]) |
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270 | |
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271 | assert allclose(quantity.edge_values, [[1., 1.5, 0.5], |
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272 | [3., 2.5, 1.5], |
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273 | [3.5, 4.5, 3.], |
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274 | [2.5, 3.5, 2]]) |
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275 | |
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276 | |
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277 | |
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278 | |
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279 | |
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280 | def test_set_values_using_least_squares(self): |
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281 | |
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282 | from geospatial_data.geospatial_data import Geospatial_data |
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283 | |
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284 | quantity = Quantity(self.mesh4) |
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285 | |
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286 | #Get (enough) datapoints |
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287 | data_points = [[ 0.66666667, 0.66666667], |
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288 | [ 1.33333333, 1.33333333], |
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289 | [ 2.66666667, 0.66666667], |
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290 | [ 0.66666667, 2.66666667], |
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291 | [ 0.0, 1.0], |
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292 | [ 0.0, 3.0], |
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293 | [ 1.0, 0.0], |
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294 | [ 1.0, 1.0], |
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295 | [ 1.0, 2.0], |
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296 | [ 1.0, 3.0], |
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297 | [ 2.0, 1.0], |
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298 | [ 3.0, 0.0], |
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299 | [ 3.0, 1.0]] |
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300 | |
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301 | z = linear_function(data_points) |
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302 | |
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303 | #Use built-in least squares fit |
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304 | quantity.set_values( Geospatial_data(data_points, z), alpha = 0 ) |
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305 | #quantity.set_values(points = data_points, values = z, alpha = 0) |
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306 | |
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307 | |
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308 | answer = linear_function(quantity.domain.get_vertex_coordinates(obj = True)) |
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309 | #print quantity.vertex_values, answer |
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310 | assert allclose(quantity.vertex_values.flat, answer) |
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311 | |
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312 | |
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313 | #Now try by setting the same values directly |
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314 | from least_squares import fit_to_mesh |
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315 | vertex_attributes = fit_to_mesh(quantity.domain.coordinates, |
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316 | quantity.domain.triangles, |
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317 | data_points, |
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318 | z, |
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319 | alpha = 0, |
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320 | verbose=False) |
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321 | |
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322 | #print vertex_attributes |
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323 | quantity.set_values(vertex_attributes) |
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324 | assert allclose(quantity.vertex_values.flat, answer) |
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325 | |
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326 | |
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327 | |
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328 | |
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329 | |
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330 | def test_test_set_values_using_least_squares_w_geo(self): |
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331 | |
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332 | from domain import Domain |
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333 | from geospatial_data.geospatial_data import Geospatial_data |
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334 | from coordinate_transforms.geo_reference import Geo_reference |
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335 | from least_squares import fit_to_mesh |
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336 | |
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337 | #Mesh |
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338 | vertex_coordinates = [[0.76, 0.76], |
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339 | [0.76, 5.76], |
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340 | [5.76, 0.76]] |
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341 | triangles = [[0,2,1]] |
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342 | |
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343 | mesh_georef = Geo_reference(56,-0.76,-0.76) |
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344 | mesh1 = Domain(vertex_coordinates, triangles, |
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345 | geo_reference = mesh_georef) |
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346 | mesh1.check_integrity() |
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347 | |
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348 | #Quantity |
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349 | quantity = Quantity(mesh1) |
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350 | |
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351 | #Data |
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352 | data_points = [[ 201.0, 401.0], |
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353 | [ 201.0, 403.0], |
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354 | [ 203.0, 401.0]] |
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355 | |
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356 | z = [2, 4, 4] |
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357 | |
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358 | data_georef = Geo_reference(56,-200,-400) |
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359 | |
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360 | |
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361 | #Reference |
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362 | ref = fit_to_mesh(vertex_coordinates, triangles, data_points, z, |
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363 | data_origin = data_georef.get_origin(), |
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364 | mesh_origin = mesh_georef.get_origin(), |
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365 | alpha = 0) |
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366 | |
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367 | assert allclose( ref, [0,5,5] ) |
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368 | |
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369 | |
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370 | #Test set_values |
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371 | |
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372 | quantity.set_values( Geospatial_data(data_points, z, data_georef), alpha = 0 ) |
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373 | |
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374 | #quantity.set_values(points = data_points, |
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375 | # values = z, |
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376 | # data_georef = data_georef, |
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377 | # alpha = 0) |
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378 | |
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379 | |
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380 | #quantity.set_values(points = data_points, |
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381 | # values = z, |
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382 | # data_georef = data_georef, |
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383 | # alpha = 0) |
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384 | assert allclose(quantity.vertex_values.flat, ref) |
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385 | |
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386 | |
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387 | |
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388 | #Test set_values using geospatial data object |
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389 | quantity.vertex_values[:] = 0.0 |
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390 | |
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391 | from geospatial_data.geospatial_data import Geospatial_data |
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392 | geo = Geospatial_data(data_points, z, data_georef) |
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393 | |
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394 | |
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395 | quantity.set_values(geospatial_data = geo, alpha = 0) |
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396 | assert allclose(quantity.vertex_values.flat, ref) |
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397 | |
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398 | |
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399 | |
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400 | def test_set_values_from_file1(self): |
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401 | quantity = Quantity(self.mesh4) |
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402 | |
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403 | #Get (enough) datapoints |
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404 | data_points = [[ 0.66666667, 0.66666667], |
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405 | [ 1.33333333, 1.33333333], |
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406 | [ 2.66666667, 0.66666667], |
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407 | [ 0.66666667, 2.66666667], |
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408 | [ 0.0, 1.0], |
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409 | [ 0.0, 3.0], |
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410 | [ 1.0, 0.0], |
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411 | [ 1.0, 1.0], |
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412 | [ 1.0, 2.0], |
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413 | [ 1.0, 3.0], |
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414 | [ 2.0, 1.0], |
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415 | [ 3.0, 0.0], |
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416 | [ 3.0, 1.0]] |
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417 | |
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418 | z = linear_function(data_points) |
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419 | |
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420 | |
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421 | #Create pts file |
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422 | from load_mesh.loadASCII import export_points_file |
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423 | ptsfile = 'testptsfile.pts' |
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424 | att = 'spam_and_eggs' |
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425 | points_dict = {'pointlist': data_points, |
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426 | 'attributelist': {att: z}} |
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427 | |
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428 | export_points_file(ptsfile, points_dict) |
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429 | |
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430 | #Check that values can be set from file |
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431 | quantity.set_values(filename = ptsfile, |
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432 | attribute_name = att, alpha = 0) |
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433 | answer = linear_function(quantity.domain.get_vertex_coordinates(obj = True)) |
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434 | |
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435 | #print quantity.vertex_values.flat |
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436 | #print answer |
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437 | |
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438 | |
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439 | assert allclose(quantity.vertex_values.flat, answer) |
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440 | |
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441 | |
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442 | #Check that values can be set from file using default attribute |
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443 | quantity.set_values(filename = ptsfile, alpha = 0) |
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444 | assert allclose(quantity.vertex_values.flat, answer) |
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445 | |
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446 | #Cleanup |
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447 | import os |
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448 | os.remove(ptsfile) |
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449 | |
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450 | |
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451 | def test_set_values_from_file_with_georef1(self): |
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452 | |
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453 | #Mesh in zone 56 (absolute coords) |
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454 | from domain import Domain |
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455 | from coordinate_transforms.geo_reference import Geo_reference |
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456 | |
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457 | x0 = 314036.58727982 |
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458 | y0 = 6224951.2960092 |
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459 | |
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460 | a = [x0+0.0, y0+0.0] |
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461 | b = [x0+0.0, y0+2.0] |
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462 | c = [x0+2.0, y0+0.0] |
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463 | d = [x0+0.0, y0+4.0] |
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464 | e = [x0+2.0, y0+2.0] |
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465 | f = [x0+4.0, y0+0.0] |
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466 | |
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467 | points = [a, b, c, d, e, f] |
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468 | |
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469 | #bac, bce, ecf, dbe |
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470 | elements = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
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471 | |
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472 | mesh4 = Domain(points, elements, |
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473 | geo_reference = Geo_reference(56, 0, 0)) |
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474 | mesh4.check_integrity() |
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475 | quantity = Quantity(mesh4) |
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476 | |
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477 | #Get (enough) datapoints (relative to georef) |
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478 | data_points = [[ 0.66666667, 0.66666667], |
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479 | [ 1.33333333, 1.33333333], |
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480 | [ 2.66666667, 0.66666667], |
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481 | [ 0.66666667, 2.66666667], |
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482 | [ 0.0, 1.0], |
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483 | [ 0.0, 3.0], |
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484 | [ 1.0, 0.0], |
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485 | [ 1.0, 1.0], |
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486 | [ 1.0, 2.0], |
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487 | [ 1.0, 3.0], |
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488 | [ 2.0, 1.0], |
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489 | [ 3.0, 0.0], |
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490 | [ 3.0, 1.0]] |
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491 | |
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492 | z = linear_function(data_points) |
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493 | |
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494 | |
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495 | #Create pts file |
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496 | from load_mesh.loadASCII import export_points_file |
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497 | |
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498 | ptsfile = 'testptsfile.pts' |
---|
499 | att = 'spam_and_eggs' |
---|
500 | |
---|
501 | points_dict = {'pointlist': data_points, |
---|
502 | 'attributelist': {att: z}, |
---|
503 | 'geo_reference': Geo_reference(zone = 56, |
---|
504 | xllcorner = x0, |
---|
505 | yllcorner = y0)} |
---|
506 | |
---|
507 | export_points_file(ptsfile, points_dict) |
---|
508 | |
---|
509 | |
---|
510 | #Check that values can be set from file |
---|
511 | quantity.set_values(filename = ptsfile, |
---|
512 | attribute_name = att, alpha = 0) |
---|
513 | answer = linear_function(quantity.domain.get_vertex_coordinates(obj = True) - [x0, y0]) |
---|
514 | |
---|
515 | assert allclose(quantity.vertex_values.flat, answer) |
---|
516 | |
---|
517 | |
---|
518 | #Check that values can be set from file using default attribute |
---|
519 | quantity.set_values(filename = ptsfile, alpha = 0) |
---|
520 | assert allclose(quantity.vertex_values.flat, answer) |
---|
521 | |
---|
522 | #Cleanup |
---|
523 | import os |
---|
524 | os.remove(ptsfile) |
---|
525 | |
---|
526 | |
---|
527 | def test_set_values_from_file_with_georef2(self): |
---|
528 | |
---|
529 | #Mesh in zone 56 (relative coords) |
---|
530 | from domain import Domain |
---|
531 | from coordinate_transforms.geo_reference import Geo_reference |
---|
532 | |
---|
533 | x0 = 314036.58727982 |
---|
534 | y0 = 6224951.2960092 |
---|
535 | |
---|
536 | a = [0.0, 0.0] |
---|
537 | b = [0.0, 2.0] |
---|
538 | c = [2.0, 0.0] |
---|
539 | d = [0.0, 4.0] |
---|
540 | e = [2.0, 2.0] |
---|
541 | f = [4.0, 0.0] |
---|
542 | |
---|
543 | points = [a, b, c, d, e, f] |
---|
544 | |
---|
545 | #bac, bce, ecf, dbe |
---|
546 | elements = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
---|
547 | |
---|
548 | mesh4 = Domain(points, elements, |
---|
549 | geo_reference = Geo_reference(56, x0, y0)) |
---|
550 | mesh4.check_integrity() |
---|
551 | quantity = Quantity(mesh4) |
---|
552 | |
---|
553 | #Get (enough) datapoints (relative to georef) |
---|
554 | data_points = [[ x0+0.66666667, y0+0.66666667], |
---|
555 | [ x0+1.33333333, y0+1.33333333], |
---|
556 | [ x0+2.66666667, y0+0.66666667], |
---|
557 | [ x0+0.66666667, y0+2.66666667], |
---|
558 | [ x0+0.0, y0+1.0], |
---|
559 | [ x0+0.0, y0+3.0], |
---|
560 | [ x0+1.0, y0+0.0], |
---|
561 | [ x0+1.0, y0+1.0], |
---|
562 | [ x0+1.0, y0+2.0], |
---|
563 | [ x0+1.0, y0+3.0], |
---|
564 | [ x0+2.0, y0+1.0], |
---|
565 | [ x0+3.0, y0+0.0], |
---|
566 | [ x0+3.0, y0+1.0]] |
---|
567 | |
---|
568 | z = linear_function(data_points) |
---|
569 | |
---|
570 | |
---|
571 | #Create pts file |
---|
572 | from load_mesh.loadASCII import export_points_file |
---|
573 | |
---|
574 | ptsfile = 'testptsfile.pts' |
---|
575 | att = 'spam_and_eggs' |
---|
576 | |
---|
577 | points_dict = {'pointlist': data_points, |
---|
578 | 'attributelist': {att: z}, |
---|
579 | 'geo_reference': Geo_reference(zone = 56, |
---|
580 | xllcorner = 0, |
---|
581 | yllcorner = 0)} |
---|
582 | |
---|
583 | export_points_file(ptsfile, points_dict) |
---|
584 | |
---|
585 | |
---|
586 | #Check that values can be set from file |
---|
587 | quantity.set_values(filename = ptsfile, |
---|
588 | attribute_name = att, alpha = 0) |
---|
589 | answer = linear_function(quantity.domain.get_vertex_coordinates(obj = True) + [x0, y0]) |
---|
590 | |
---|
591 | |
---|
592 | assert allclose(quantity.vertex_values.flat, answer) |
---|
593 | |
---|
594 | |
---|
595 | #Check that values can be set from file using default attribute |
---|
596 | quantity.set_values(filename = ptsfile, alpha = 0) |
---|
597 | assert allclose(quantity.vertex_values.flat, answer) |
---|
598 | |
---|
599 | #Cleanup |
---|
600 | import os |
---|
601 | os.remove(ptsfile) |
---|
602 | |
---|
603 | |
---|
604 | |
---|
605 | |
---|
606 | def test_set_values_from_quantity(self): |
---|
607 | |
---|
608 | quantity1 = Quantity(self.mesh4) |
---|
609 | quantity1.set_vertex_values([0,1,2,3,4,5]) |
---|
610 | |
---|
611 | assert allclose(quantity1.vertex_values, |
---|
612 | [[1,0,2], [1,2,4], [4,2,5], [3,1,4]]) |
---|
613 | |
---|
614 | |
---|
615 | quantity2 = Quantity(self.mesh4) |
---|
616 | quantity2.set_values(quantity = quantity1) |
---|
617 | assert allclose(quantity2.vertex_values, |
---|
618 | [[1,0,2], [1,2,4], [4,2,5], [3,1,4]]) |
---|
619 | |
---|
620 | quantity2.set_values(quantity = 2*quantity1) |
---|
621 | assert allclose(quantity2.vertex_values, |
---|
622 | [[2,0,4], [2,4,8], [8,4,10], [6,2,8]]) |
---|
623 | |
---|
624 | quantity2.set_values(quantity = 2*quantity1 + 3) |
---|
625 | assert allclose(quantity2.vertex_values, |
---|
626 | [[5,3,7], [5,7,11], [11,7,13], [9,5,11]]) |
---|
627 | |
---|
628 | |
---|
629 | #Check detection of quantity as first orgument |
---|
630 | quantity2.set_values(2*quantity1 + 3) |
---|
631 | assert allclose(quantity2.vertex_values, |
---|
632 | [[5,3,7], [5,7,11], [11,7,13], [9,5,11]]) |
---|
633 | |
---|
634 | |
---|
635 | |
---|
636 | |
---|
637 | |
---|
638 | def test_overloading(self): |
---|
639 | |
---|
640 | quantity1 = Quantity(self.mesh4) |
---|
641 | quantity1.set_vertex_values([0,1,2,3,4,5]) |
---|
642 | |
---|
643 | assert allclose(quantity1.vertex_values, |
---|
644 | [[1,0,2], [1,2,4], [4,2,5], [3,1,4]]) |
---|
645 | |
---|
646 | |
---|
647 | quantity2 = Quantity(self.mesh4) |
---|
648 | quantity2.set_values([[1,2,3], [5,5,5], [0,0,9], [-6, 3, 3]], |
---|
649 | location = 'vertices') |
---|
650 | |
---|
651 | |
---|
652 | |
---|
653 | quantity3 = Quantity(self.mesh4) |
---|
654 | quantity3.set_values([[2,2,2], [7,8,9], [7,6,3], [3, 8, -8]], |
---|
655 | location = 'vertices') |
---|
656 | |
---|
657 | |
---|
658 | #Negation |
---|
659 | Q = -quantity1 |
---|
660 | assert allclose(Q.vertex_values, -quantity1.vertex_values) |
---|
661 | assert allclose(Q.centroid_values, -quantity1.centroid_values) |
---|
662 | assert allclose(Q.edge_values, -quantity1.edge_values) |
---|
663 | |
---|
664 | #Addition |
---|
665 | Q = quantity1 + 7 |
---|
666 | assert allclose(Q.vertex_values, quantity1.vertex_values + 7) |
---|
667 | assert allclose(Q.centroid_values, quantity1.centroid_values + 7) |
---|
668 | assert allclose(Q.edge_values, quantity1.edge_values + 7) |
---|
669 | |
---|
670 | Q = 7 + quantity1 |
---|
671 | assert allclose(Q.vertex_values, quantity1.vertex_values + 7) |
---|
672 | assert allclose(Q.centroid_values, quantity1.centroid_values + 7) |
---|
673 | assert allclose(Q.edge_values, quantity1.edge_values + 7) |
---|
674 | |
---|
675 | Q = quantity1 + quantity2 |
---|
676 | assert allclose(Q.vertex_values, |
---|
677 | quantity1.vertex_values + quantity2.vertex_values) |
---|
678 | assert allclose(Q.centroid_values, |
---|
679 | quantity1.centroid_values + quantity2.centroid_values) |
---|
680 | assert allclose(Q.edge_values, |
---|
681 | quantity1.edge_values + quantity2.edge_values) |
---|
682 | |
---|
683 | |
---|
684 | Q = quantity1 + quantity2 - 3 |
---|
685 | assert allclose(Q.vertex_values, |
---|
686 | quantity1.vertex_values + quantity2.vertex_values - 3) |
---|
687 | |
---|
688 | Q = quantity1 - quantity2 |
---|
689 | assert allclose(Q.vertex_values, |
---|
690 | quantity1.vertex_values - quantity2.vertex_values) |
---|
691 | |
---|
692 | #Scaling |
---|
693 | Q = quantity1*3 |
---|
694 | assert allclose(Q.vertex_values, quantity1.vertex_values*3) |
---|
695 | assert allclose(Q.centroid_values, quantity1.centroid_values*3) |
---|
696 | assert allclose(Q.edge_values, quantity1.edge_values*3) |
---|
697 | Q = 3*quantity1 |
---|
698 | assert allclose(Q.vertex_values, quantity1.vertex_values*3) |
---|
699 | |
---|
700 | #Multiplication |
---|
701 | Q = quantity1 * quantity2 |
---|
702 | #print Q.vertex_values |
---|
703 | #print Q.centroid_values |
---|
704 | #print quantity1.centroid_values |
---|
705 | #print quantity2.centroid_values |
---|
706 | |
---|
707 | assert allclose(Q.vertex_values, |
---|
708 | quantity1.vertex_values * quantity2.vertex_values) |
---|
709 | |
---|
710 | #Linear combinations |
---|
711 | Q = 4*quantity1 + 2 |
---|
712 | assert allclose(Q.vertex_values, |
---|
713 | 4*quantity1.vertex_values + 2) |
---|
714 | |
---|
715 | Q = quantity1*quantity2 + 2 |
---|
716 | assert allclose(Q.vertex_values, |
---|
717 | quantity1.vertex_values * quantity2.vertex_values + 2) |
---|
718 | |
---|
719 | Q = quantity1*quantity2 + quantity3 |
---|
720 | assert allclose(Q.vertex_values, |
---|
721 | quantity1.vertex_values * quantity2.vertex_values + |
---|
722 | quantity3.vertex_values) |
---|
723 | Q = quantity1*quantity2 + 3*quantity3 |
---|
724 | assert allclose(Q.vertex_values, |
---|
725 | quantity1.vertex_values * quantity2.vertex_values + |
---|
726 | 3*quantity3.vertex_values) |
---|
727 | Q = quantity1*quantity2 + 3*quantity3 + 5.0 |
---|
728 | assert allclose(Q.vertex_values, |
---|
729 | quantity1.vertex_values * quantity2.vertex_values + |
---|
730 | 3*quantity3.vertex_values + 5) |
---|
731 | |
---|
732 | Q = quantity1*quantity2 - quantity3 |
---|
733 | assert allclose(Q.vertex_values, |
---|
734 | quantity1.vertex_values * quantity2.vertex_values - |
---|
735 | quantity3.vertex_values) |
---|
736 | Q = 1.5*quantity1*quantity2 - 3*quantity3 + 5.0 |
---|
737 | assert allclose(Q.vertex_values, |
---|
738 | 1.5*quantity1.vertex_values * quantity2.vertex_values - |
---|
739 | 3*quantity3.vertex_values + 5) |
---|
740 | |
---|
741 | #Try combining quantities and arrays and scalars |
---|
742 | Q = 1.5*quantity1*quantity2.vertex_values -\ |
---|
743 | 3*quantity3.vertex_values + 5.0 |
---|
744 | assert allclose(Q.vertex_values, |
---|
745 | 1.5*quantity1.vertex_values * quantity2.vertex_values - |
---|
746 | 3*quantity3.vertex_values + 5) |
---|
747 | |
---|
748 | |
---|
749 | #Powers |
---|
750 | Q = quantity1**2 |
---|
751 | assert allclose(Q.vertex_values, quantity1.vertex_values**2) |
---|
752 | |
---|
753 | Q = quantity1**2 +quantity2**2 |
---|
754 | assert allclose(Q.vertex_values, |
---|
755 | quantity1.vertex_values**2 + \ |
---|
756 | quantity2.vertex_values**2) |
---|
757 | |
---|
758 | Q = (quantity1**2 +quantity2**2)**0.5 |
---|
759 | assert allclose(Q.vertex_values, |
---|
760 | (quantity1.vertex_values**2 + \ |
---|
761 | quantity2.vertex_values**2)**0.5) |
---|
762 | |
---|
763 | |
---|
764 | |
---|
765 | |
---|
766 | |
---|
767 | |
---|
768 | |
---|
769 | def test_gradient(self): |
---|
770 | quantity = Conserved_quantity(self.mesh4) |
---|
771 | |
---|
772 | #Set up for a gradient of (2,0) at mid triangle |
---|
773 | quantity.set_values([2.0, 4.0, 6.0, 2.0], |
---|
774 | location = 'centroids') |
---|
775 | |
---|
776 | |
---|
777 | #Gradients |
---|
778 | a, b = quantity.compute_gradients() |
---|
779 | |
---|
780 | #print self.mesh4.centroid_coordinates |
---|
781 | #print a, b |
---|
782 | |
---|
783 | #The central triangle (1) |
---|
784 | #(using standard gradient based on neigbours controid values) |
---|
785 | assert allclose(a[1], 2.0) |
---|
786 | assert allclose(b[1], 0.0) |
---|
787 | |
---|
788 | |
---|
789 | #Left triangle (0) using two point gradient |
---|
790 | #q0 = q1 + a*(x0-x1) + b*(y0-y1) <=> |
---|
791 | #2 = 4 + a*(-2/3) + b*(-2/3) |
---|
792 | assert allclose(a[0] + b[0], 3) |
---|
793 | #From orthogonality (a*(y0-y1) + b*(x0-x1) == 0) |
---|
794 | assert allclose(a[0] - b[0], 0) |
---|
795 | |
---|
796 | |
---|
797 | #Right triangle (2) using two point gradient |
---|
798 | #q2 = q1 + a*(x2-x1) + b*(y2-y1) <=> |
---|
799 | #6 = 4 + a*(4/3) + b*(-2/3) |
---|
800 | assert allclose(2*a[2] - b[2], 3) |
---|
801 | #From orthogonality (a*(y1-y2) + b*(x2-x1) == 0) |
---|
802 | assert allclose(a[2] + 2*b[2], 0) |
---|
803 | |
---|
804 | |
---|
805 | #Top triangle (3) using two point gradient |
---|
806 | #q3 = q1 + a*(x3-x1) + b*(y3-y1) <=> |
---|
807 | #2 = 4 + a*(-2/3) + b*(4/3) |
---|
808 | assert allclose(a[3] - 2*b[3], 3) |
---|
809 | #From orthogonality (a*(y1-y3) + b*(x3-x1) == 0) |
---|
810 | assert allclose(2*a[3] + b[3], 0) |
---|
811 | |
---|
812 | |
---|
813 | |
---|
814 | #print a, b |
---|
815 | quantity.extrapolate_second_order() |
---|
816 | |
---|
817 | #Apply q(x,y) = qc + a*(x-xc) + b*(y-yc) |
---|
818 | assert allclose(quantity.vertex_values[0,:], [3., 0., 3.]) |
---|
819 | assert allclose(quantity.vertex_values[1,:], [4./3, 16./3, 16./3]) |
---|
820 | |
---|
821 | |
---|
822 | #a = 1.2, b=-0.6 |
---|
823 | #q(4,0) = 6 + a*(4 - 8/3) + b*(-2/3) |
---|
824 | assert allclose(quantity.vertex_values[2,2], 8) |
---|
825 | |
---|
826 | |
---|
827 | def test_second_order_extrapolation2(self): |
---|
828 | quantity = Conserved_quantity(self.mesh4) |
---|
829 | |
---|
830 | #Set up for a gradient of (3,1), f(x) = 3x+y |
---|
831 | quantity.set_values([2.0+2.0/3, 4.0+4.0/3, 8.0+2.0/3, 2.0+8.0/3], |
---|
832 | location = 'centroids') |
---|
833 | |
---|
834 | #Gradients |
---|
835 | a, b = quantity.compute_gradients() |
---|
836 | |
---|
837 | #print a, b |
---|
838 | |
---|
839 | assert allclose(a[1], 3.0) |
---|
840 | assert allclose(b[1], 1.0) |
---|
841 | |
---|
842 | #Work out the others |
---|
843 | |
---|
844 | quantity.extrapolate_second_order() |
---|
845 | |
---|
846 | #print quantity.vertex_values |
---|
847 | assert allclose(quantity.vertex_values[1,0], 2.0) |
---|
848 | assert allclose(quantity.vertex_values[1,1], 6.0) |
---|
849 | assert allclose(quantity.vertex_values[1,2], 8.0) |
---|
850 | |
---|
851 | |
---|
852 | |
---|
853 | def test_first_order_extrapolator(self): |
---|
854 | quantity = Conserved_quantity(self.mesh4) |
---|
855 | |
---|
856 | #Test centroids |
---|
857 | quantity.set_values([1.,2.,3.,4.], location = 'centroids') |
---|
858 | assert allclose(quantity.centroid_values, [1, 2, 3, 4]) #Centroid |
---|
859 | |
---|
860 | #Extrapolate |
---|
861 | quantity.extrapolate_first_order() |
---|
862 | |
---|
863 | #Check vertices but not edge values |
---|
864 | assert allclose(quantity.vertex_values, |
---|
865 | [[1,1,1], [2,2,2], [3,3,3], [4, 4, 4]]) |
---|
866 | |
---|
867 | |
---|
868 | def test_second_order_extrapolator(self): |
---|
869 | quantity = Conserved_quantity(self.mesh4) |
---|
870 | |
---|
871 | #Set up for a gradient of (3,0) at mid triangle |
---|
872 | quantity.set_values([2.0, 4.0, 8.0, 2.0], |
---|
873 | location = 'centroids') |
---|
874 | |
---|
875 | |
---|
876 | |
---|
877 | quantity.extrapolate_second_order() |
---|
878 | quantity.limit() |
---|
879 | |
---|
880 | |
---|
881 | #Assert that central triangle is limited by neighbours |
---|
882 | assert quantity.vertex_values[1,0] >= quantity.vertex_values[0,0] |
---|
883 | assert quantity.vertex_values[1,0] >= quantity.vertex_values[3,1] |
---|
884 | |
---|
885 | assert quantity.vertex_values[1,1] <= quantity.vertex_values[2,1] |
---|
886 | assert quantity.vertex_values[1,1] >= quantity.vertex_values[0,2] |
---|
887 | |
---|
888 | assert quantity.vertex_values[1,2] <= quantity.vertex_values[2,0] |
---|
889 | assert quantity.vertex_values[1,2] >= quantity.vertex_values[3,1] |
---|
890 | |
---|
891 | |
---|
892 | #Assert that quantities are conserved |
---|
893 | from Numeric import sum |
---|
894 | for k in range(quantity.centroid_values.shape[0]): |
---|
895 | assert allclose (quantity.centroid_values[k], |
---|
896 | sum(quantity.vertex_values[k,:])/3) |
---|
897 | |
---|
898 | |
---|
899 | |
---|
900 | |
---|
901 | |
---|
902 | def test_limiter(self): |
---|
903 | quantity = Conserved_quantity(self.mesh4) |
---|
904 | |
---|
905 | #Create a deliberate overshoot (e.g. from gradient computation) |
---|
906 | quantity.set_values([[3,0,3], [2,2,6], [5,3,8], [8,3,5]]) |
---|
907 | |
---|
908 | |
---|
909 | #Limit |
---|
910 | quantity.limit() |
---|
911 | |
---|
912 | #Assert that central triangle is limited by neighbours |
---|
913 | assert quantity.vertex_values[1,0] >= quantity.vertex_values[0,0] |
---|
914 | assert quantity.vertex_values[1,0] <= quantity.vertex_values[3,1] |
---|
915 | |
---|
916 | assert quantity.vertex_values[1,1] <= quantity.vertex_values[2,1] |
---|
917 | assert quantity.vertex_values[1,1] >= quantity.vertex_values[0,2] |
---|
918 | |
---|
919 | assert quantity.vertex_values[1,2] <= quantity.vertex_values[2,0] |
---|
920 | assert quantity.vertex_values[1,2] <= quantity.vertex_values[3,1] |
---|
921 | |
---|
922 | |
---|
923 | |
---|
924 | #Assert that quantities are conserved |
---|
925 | from Numeric import sum |
---|
926 | for k in range(quantity.centroid_values.shape[0]): |
---|
927 | assert allclose (quantity.centroid_values[k], |
---|
928 | sum(quantity.vertex_values[k,:])/3) |
---|
929 | |
---|
930 | |
---|
931 | def test_limiter2(self): |
---|
932 | """Taken from test_shallow_water |
---|
933 | """ |
---|
934 | quantity = Conserved_quantity(self.mesh4) |
---|
935 | |
---|
936 | #Test centroids |
---|
937 | quantity.set_values([2.,4.,8.,2.], location = 'centroids') |
---|
938 | assert allclose(quantity.centroid_values, [2, 4, 8, 2]) #Centroid |
---|
939 | |
---|
940 | |
---|
941 | #Extrapolate |
---|
942 | quantity.extrapolate_second_order() |
---|
943 | |
---|
944 | assert allclose(quantity.vertex_values[1,:], [0.0, 6, 6]) |
---|
945 | |
---|
946 | #Limit |
---|
947 | quantity.limit() |
---|
948 | |
---|
949 | |
---|
950 | assert allclose(quantity.vertex_values[1,:], [2.2, 4.9, 4.9]) |
---|
951 | |
---|
952 | |
---|
953 | #Assert that quantities are conserved |
---|
954 | from Numeric import sum |
---|
955 | for k in range(quantity.centroid_values.shape[0]): |
---|
956 | assert allclose (quantity.centroid_values[k], |
---|
957 | sum(quantity.vertex_values[k,:])/3) |
---|
958 | |
---|
959 | |
---|
960 | |
---|
961 | |
---|
962 | |
---|
963 | def test_distribute_first_order(self): |
---|
964 | quantity = Conserved_quantity(self.mesh4) |
---|
965 | |
---|
966 | #Test centroids |
---|
967 | quantity.set_values([1.,2.,3.,4.], location = 'centroids') |
---|
968 | assert allclose(quantity.centroid_values, [1, 2, 3, 4]) #Centroid |
---|
969 | |
---|
970 | |
---|
971 | #Extrapolate |
---|
972 | quantity.extrapolate_first_order() |
---|
973 | |
---|
974 | #Interpolate |
---|
975 | quantity.interpolate_from_vertices_to_edges() |
---|
976 | |
---|
977 | assert allclose(quantity.vertex_values, |
---|
978 | [[1,1,1], [2,2,2], [3,3,3], [4, 4, 4]]) |
---|
979 | assert allclose(quantity.edge_values, [[1,1,1], [2,2,2], |
---|
980 | [3,3,3], [4, 4, 4]]) |
---|
981 | |
---|
982 | |
---|
983 | def test_distribute_second_order(self): |
---|
984 | quantity = Conserved_quantity(self.mesh4) |
---|
985 | |
---|
986 | #Test centroids |
---|
987 | quantity.set_values([2.,4.,8.,2.], location = 'centroids') |
---|
988 | assert allclose(quantity.centroid_values, [2, 4, 8, 2]) #Centroid |
---|
989 | |
---|
990 | |
---|
991 | #Extrapolate |
---|
992 | quantity.extrapolate_second_order() |
---|
993 | |
---|
994 | assert allclose(quantity.vertex_values[1,:], [0.0, 6, 6]) |
---|
995 | |
---|
996 | |
---|
997 | def test_update_explicit(self): |
---|
998 | quantity = Conserved_quantity(self.mesh4) |
---|
999 | |
---|
1000 | #Test centroids |
---|
1001 | quantity.set_values([1.,2.,3.,4.], location = 'centroids') |
---|
1002 | assert allclose(quantity.centroid_values, [1, 2, 3, 4]) #Centroid |
---|
1003 | |
---|
1004 | #Set explicit_update |
---|
1005 | quantity.explicit_update = array( [1.,1.,1.,1.] ) |
---|
1006 | |
---|
1007 | #Update with given timestep |
---|
1008 | quantity.update(0.1) |
---|
1009 | |
---|
1010 | x = array([1, 2, 3, 4]) + array( [.1,.1,.1,.1] ) |
---|
1011 | assert allclose( quantity.centroid_values, x) |
---|
1012 | |
---|
1013 | def test_update_semi_implicit(self): |
---|
1014 | quantity = Conserved_quantity(self.mesh4) |
---|
1015 | |
---|
1016 | #Test centroids |
---|
1017 | quantity.set_values([1.,2.,3.,4.], location = 'centroids') |
---|
1018 | assert allclose(quantity.centroid_values, [1, 2, 3, 4]) #Centroid |
---|
1019 | |
---|
1020 | #Set semi implicit update |
---|
1021 | quantity.semi_implicit_update = array([1.,1.,1.,1.]) |
---|
1022 | |
---|
1023 | #Update with given timestep |
---|
1024 | timestep = 0.1 |
---|
1025 | quantity.update(timestep) |
---|
1026 | |
---|
1027 | sem = array([1.,1.,1.,1.])/array([1, 2, 3, 4]) |
---|
1028 | denom = ones(4, Float)-timestep*sem |
---|
1029 | |
---|
1030 | x = array([1, 2, 3, 4])/denom |
---|
1031 | assert allclose( quantity.centroid_values, x) |
---|
1032 | |
---|
1033 | |
---|
1034 | def test_both_updates(self): |
---|
1035 | quantity = Conserved_quantity(self.mesh4) |
---|
1036 | |
---|
1037 | #Test centroids |
---|
1038 | quantity.set_values([1.,2.,3.,4.], location = 'centroids') |
---|
1039 | assert allclose(quantity.centroid_values, [1, 2, 3, 4]) #Centroid |
---|
1040 | |
---|
1041 | #Set explicit_update |
---|
1042 | quantity.explicit_update = array( [4.,3.,2.,1.] ) |
---|
1043 | |
---|
1044 | #Set semi implicit update |
---|
1045 | quantity.semi_implicit_update = array( [1.,1.,1.,1.] ) |
---|
1046 | |
---|
1047 | #Update with given timestep |
---|
1048 | timestep = 0.1 |
---|
1049 | quantity.update(0.1) |
---|
1050 | |
---|
1051 | sem = array([1.,1.,1.,1.])/array([1, 2, 3, 4]) |
---|
1052 | denom = ones(4, Float)-timestep*sem |
---|
1053 | |
---|
1054 | x = array([1, 2, 3, 4]) + array( [.4,.3,.2,.1] ) |
---|
1055 | x /= denom |
---|
1056 | assert allclose( quantity.centroid_values, x) |
---|
1057 | |
---|
1058 | |
---|
1059 | |
---|
1060 | |
---|
1061 | #Test smoothing |
---|
1062 | def test_smoothing(self): |
---|
1063 | |
---|
1064 | from mesh_factory import rectangular |
---|
1065 | from shallow_water import Domain, Transmissive_boundary |
---|
1066 | from Numeric import zeros, Float |
---|
1067 | from util import mean |
---|
1068 | |
---|
1069 | #Create basic mesh |
---|
1070 | points, vertices, boundary = rectangular(2, 2) |
---|
1071 | |
---|
1072 | #Create shallow water domain |
---|
1073 | domain = Domain(points, vertices, boundary) |
---|
1074 | domain.default_order=2 |
---|
1075 | domain.reduction = mean |
---|
1076 | |
---|
1077 | |
---|
1078 | #Set some field values |
---|
1079 | domain.set_quantity('elevation', lambda x,y: x) |
---|
1080 | domain.set_quantity('friction', 0.03) |
---|
1081 | |
---|
1082 | |
---|
1083 | ###################### |
---|
1084 | # Boundary conditions |
---|
1085 | B = Transmissive_boundary(domain) |
---|
1086 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
---|
1087 | |
---|
1088 | |
---|
1089 | ###################### |
---|
1090 | #Initial condition - with jumps |
---|
1091 | |
---|
1092 | bed = domain.quantities['elevation'].vertex_values |
---|
1093 | stage = zeros(bed.shape, Float) |
---|
1094 | |
---|
1095 | h = 0.03 |
---|
1096 | for i in range(stage.shape[0]): |
---|
1097 | if i % 2 == 0: |
---|
1098 | stage[i,:] = bed[i,:] + h |
---|
1099 | else: |
---|
1100 | stage[i,:] = bed[i,:] |
---|
1101 | |
---|
1102 | domain.set_quantity('stage', stage) |
---|
1103 | |
---|
1104 | stage = domain.quantities['stage'] |
---|
1105 | |
---|
1106 | #Get smoothed stage |
---|
1107 | A, V = stage.get_vertex_values(xy=False, smooth=True) |
---|
1108 | Q = stage.vertex_values |
---|
1109 | |
---|
1110 | |
---|
1111 | assert A.shape[0] == 9 |
---|
1112 | assert V.shape[0] == 8 |
---|
1113 | assert V.shape[1] == 3 |
---|
1114 | |
---|
1115 | #First four points |
---|
1116 | assert allclose(A[0], (Q[0,2] + Q[1,1])/2) |
---|
1117 | assert allclose(A[1], (Q[1,0] + Q[3,1] + Q[2,2])/3) |
---|
1118 | assert allclose(A[2], Q[3,0]) |
---|
1119 | assert allclose(A[3], (Q[0,0] + Q[5,1] + Q[4,2])/3) |
---|
1120 | |
---|
1121 | #Center point |
---|
1122 | assert allclose(A[4], (Q[0,1] + Q[1,2] + Q[2,0] +\ |
---|
1123 | Q[5,0] + Q[6,2] + Q[7,1])/6) |
---|
1124 | |
---|
1125 | |
---|
1126 | #Check V |
---|
1127 | assert allclose(V[0,:], [3,4,0]) |
---|
1128 | assert allclose(V[1,:], [1,0,4]) |
---|
1129 | assert allclose(V[2,:], [4,5,1]) |
---|
1130 | assert allclose(V[3,:], [2,1,5]) |
---|
1131 | assert allclose(V[4,:], [6,7,3]) |
---|
1132 | assert allclose(V[5,:], [4,3,7]) |
---|
1133 | assert allclose(V[6,:], [7,8,4]) |
---|
1134 | assert allclose(V[7,:], [5,4,8]) |
---|
1135 | |
---|
1136 | #Get smoothed stage with XY |
---|
1137 | X, Y, A1, V1 = stage.get_vertex_values(xy=True, smooth=True) |
---|
1138 | |
---|
1139 | assert allclose(A, A1) |
---|
1140 | assert allclose(V, V1) |
---|
1141 | |
---|
1142 | #Check XY |
---|
1143 | assert allclose(X[4], 0.5) |
---|
1144 | assert allclose(Y[4], 0.5) |
---|
1145 | |
---|
1146 | assert allclose(X[7], 1.0) |
---|
1147 | assert allclose(Y[7], 0.5) |
---|
1148 | |
---|
1149 | |
---|
1150 | |
---|
1151 | |
---|
1152 | def test_vertex_values_no_smoothing(self): |
---|
1153 | |
---|
1154 | from mesh_factory import rectangular |
---|
1155 | from shallow_water import Domain, Transmissive_boundary |
---|
1156 | from Numeric import zeros, Float |
---|
1157 | from util import mean |
---|
1158 | |
---|
1159 | |
---|
1160 | #Create basic mesh |
---|
1161 | points, vertices, boundary = rectangular(2, 2) |
---|
1162 | |
---|
1163 | #Create shallow water domain |
---|
1164 | domain = Domain(points, vertices, boundary) |
---|
1165 | domain.default_order=2 |
---|
1166 | domain.reduction = mean |
---|
1167 | |
---|
1168 | |
---|
1169 | #Set some field values |
---|
1170 | domain.set_quantity('elevation', lambda x,y: x) |
---|
1171 | domain.set_quantity('friction', 0.03) |
---|
1172 | |
---|
1173 | |
---|
1174 | ###################### |
---|
1175 | #Initial condition - with jumps |
---|
1176 | |
---|
1177 | bed = domain.quantities['elevation'].vertex_values |
---|
1178 | stage = zeros(bed.shape, Float) |
---|
1179 | |
---|
1180 | h = 0.03 |
---|
1181 | for i in range(stage.shape[0]): |
---|
1182 | if i % 2 == 0: |
---|
1183 | stage[i,:] = bed[i,:] + h |
---|
1184 | else: |
---|
1185 | stage[i,:] = bed[i,:] |
---|
1186 | |
---|
1187 | domain.set_quantity('stage', stage) |
---|
1188 | |
---|
1189 | #Get stage |
---|
1190 | stage = domain.quantities['stage'] |
---|
1191 | A, V = stage.get_vertex_values(xy=False, smooth=False) |
---|
1192 | Q = stage.vertex_values.flat |
---|
1193 | |
---|
1194 | for k in range(8): |
---|
1195 | assert allclose(A[k], Q[k]) |
---|
1196 | |
---|
1197 | |
---|
1198 | for k in range(8): |
---|
1199 | assert V[k, 0] == 3*k |
---|
1200 | assert V[k, 1] == 3*k+1 |
---|
1201 | assert V[k, 2] == 3*k+2 |
---|
1202 | |
---|
1203 | |
---|
1204 | |
---|
1205 | X, Y, A1, V1 = stage.get_vertex_values(xy=True, smooth=False) |
---|
1206 | |
---|
1207 | |
---|
1208 | assert allclose(A, A1) |
---|
1209 | assert allclose(V, V1) |
---|
1210 | |
---|
1211 | #Check XY |
---|
1212 | assert allclose(X[1], 0.5) |
---|
1213 | assert allclose(Y[1], 0.5) |
---|
1214 | assert allclose(X[4], 0.0) |
---|
1215 | assert allclose(Y[4], 0.0) |
---|
1216 | assert allclose(X[12], 1.0) |
---|
1217 | assert allclose(Y[12], 0.0) |
---|
1218 | |
---|
1219 | |
---|
1220 | |
---|
1221 | def set_array_values_by_index(self): |
---|
1222 | |
---|
1223 | from mesh_factory import rectangular |
---|
1224 | from shallow_water import Domain |
---|
1225 | from Numeric import zeros, Float |
---|
1226 | |
---|
1227 | #Create basic mesh |
---|
1228 | points, vertices, boundary = rectangular(1, 1) |
---|
1229 | |
---|
1230 | #Create shallow water domain |
---|
1231 | domain = Domain(points, vertices, boundary) |
---|
1232 | #print "domain.number_of_elements ",domain.number_of_elements |
---|
1233 | quantity = Quantity(domain,[[1,1,1],[2,2,2]]) |
---|
1234 | value = [7] |
---|
1235 | indices = [1] |
---|
1236 | quantity.set_array_values_by_index(value, |
---|
1237 | location = 'centroids', |
---|
1238 | indices = indices) |
---|
1239 | #print "quantity.centroid_values",quantity.centroid_values |
---|
1240 | |
---|
1241 | assert allclose(quantity.centroid_values, [1,7]) |
---|
1242 | |
---|
1243 | quantity.set_array_values([15,20,25], indices = indices) |
---|
1244 | assert allclose(quantity.centroid_values, [1,20]) |
---|
1245 | |
---|
1246 | quantity.set_array_values([15,20,25], indices = indices) |
---|
1247 | assert allclose(quantity.centroid_values, [1,20]) |
---|
1248 | |
---|
1249 | def test_setting_some_vertex_values(self): |
---|
1250 | """ |
---|
1251 | set values based on triangle lists. |
---|
1252 | """ |
---|
1253 | from mesh_factory import rectangular |
---|
1254 | from shallow_water import Domain |
---|
1255 | from Numeric import zeros, Float |
---|
1256 | |
---|
1257 | #Create basic mesh |
---|
1258 | points, vertices, boundary = rectangular(1, 3) |
---|
1259 | #print "vertices",vertices |
---|
1260 | #Create shallow water domain |
---|
1261 | domain = Domain(points, vertices, boundary) |
---|
1262 | #print "domain.number_of_elements ",domain.number_of_elements |
---|
1263 | quantity = Quantity(domain,[[1,1,1],[2,2,2],[3,3,3], |
---|
1264 | [4,4,4],[5,5,5],[6,6,6]]) |
---|
1265 | value = [7] |
---|
1266 | indices = [1] |
---|
1267 | quantity.set_values(value, |
---|
1268 | location = 'centroids', |
---|
1269 | indices = indices) |
---|
1270 | #print "quantity.centroid_values",quantity.centroid_values |
---|
1271 | assert allclose(quantity.centroid_values, [1,7,3,4,5,6]) |
---|
1272 | |
---|
1273 | value = [[15,20,25]] |
---|
1274 | quantity.set_values(value, indices = indices) |
---|
1275 | #print "1 quantity.vertex_values",quantity.vertex_values |
---|
1276 | assert allclose(quantity.vertex_values[1], value[0]) |
---|
1277 | |
---|
1278 | |
---|
1279 | #print "quantity",quantity.vertex_values |
---|
1280 | values = [10,100,50] |
---|
1281 | quantity.set_values(values, indices = [0,1,5], location = 'centroids') |
---|
1282 | #print "2 quantity.vertex_values",quantity.vertex_values |
---|
1283 | assert allclose(quantity.vertex_values[0], [10,10,10]) |
---|
1284 | assert allclose(quantity.vertex_values[5], [50,50,50]) |
---|
1285 | #quantity.interpolate() |
---|
1286 | #print "quantity.centroid_values",quantity.centroid_values |
---|
1287 | assert allclose(quantity.centroid_values, [10,100,3,4,5,50]) |
---|
1288 | |
---|
1289 | |
---|
1290 | quantity = Quantity(domain,[[1,1,1],[2,2,2],[3,3,3], |
---|
1291 | [4,4,4],[5,5,5],[6,6,6]]) |
---|
1292 | values = [10,100,50] |
---|
1293 | #this will be per unique vertex, indexing the vertices |
---|
1294 | #print "quantity.vertex_values",quantity.vertex_values |
---|
1295 | quantity.set_values(values, indices = [0,1,5]) |
---|
1296 | #print "quantity.vertex_values",quantity.vertex_values |
---|
1297 | assert allclose(quantity.vertex_values[0], [1,50,10]) |
---|
1298 | assert allclose(quantity.vertex_values[5], [6,6,6]) |
---|
1299 | assert allclose(quantity.vertex_values[1], [100,10,50]) |
---|
1300 | |
---|
1301 | quantity = Quantity(domain,[[1,1,1],[2,2,2],[3,3,3], |
---|
1302 | [4,4,4],[5,5,5],[6,6,6]]) |
---|
1303 | values = [[31,30,29],[400,400,400],[1000,999,998]] |
---|
1304 | quantity.set_values(values, indices = [3,3,5]) |
---|
1305 | quantity.interpolate() |
---|
1306 | assert allclose(quantity.centroid_values, [1,2,3,400,5,999]) |
---|
1307 | |
---|
1308 | values = [[1,1,1],[2,2,2],[3,3,3], |
---|
1309 | [4,4,4],[5,5,5],[6,6,6]] |
---|
1310 | quantity.set_values(values) |
---|
1311 | |
---|
1312 | # testing the standard set values by vertex |
---|
1313 | # indexed by vertex_id in general_mesh.coordinates |
---|
1314 | values = [0,1,2,3,4,5,6,7] |
---|
1315 | |
---|
1316 | quantity.set_values(values) |
---|
1317 | #print "1 quantity.vertex_values",quantity.vertex_values |
---|
1318 | assert allclose(quantity.vertex_values,[[ 4., 5., 0.], |
---|
1319 | [ 1., 0., 5.], |
---|
1320 | [ 5., 6., 1.], |
---|
1321 | [ 2., 1., 6.], |
---|
1322 | [ 6., 7., 2.], |
---|
1323 | [ 3., 2., 7.]]) |
---|
1324 | |
---|
1325 | def test_setting_unique_vertex_values(self): |
---|
1326 | """ |
---|
1327 | set values based on unique_vertex lists. |
---|
1328 | """ |
---|
1329 | from mesh_factory import rectangular |
---|
1330 | from shallow_water import Domain |
---|
1331 | from Numeric import zeros, Float |
---|
1332 | |
---|
1333 | #Create basic mesh |
---|
1334 | points, vertices, boundary = rectangular(1, 3) |
---|
1335 | #print "vertices",vertices |
---|
1336 | #Create shallow water domain |
---|
1337 | domain = Domain(points, vertices, boundary) |
---|
1338 | #print "domain.number_of_elements ",domain.number_of_elements |
---|
1339 | quantity = Quantity(domain,[[0,0,0],[1,1,1],[2,2,2],[3,3,3], |
---|
1340 | [4,4,4],[5,5,5]]) |
---|
1341 | value = 7 |
---|
1342 | indices = [1,5] |
---|
1343 | quantity.set_values(value, |
---|
1344 | location = 'unique vertices', |
---|
1345 | indices = indices) |
---|
1346 | #print "quantity.centroid_values",quantity.centroid_values |
---|
1347 | assert allclose(quantity.vertex_values[0], [0,7,0]) |
---|
1348 | assert allclose(quantity.vertex_values[1], [7,1,7]) |
---|
1349 | assert allclose(quantity.vertex_values[2], [7,2,7]) |
---|
1350 | |
---|
1351 | |
---|
1352 | def test_get_values(self): |
---|
1353 | """ |
---|
1354 | get values based on triangle lists. |
---|
1355 | """ |
---|
1356 | from mesh_factory import rectangular |
---|
1357 | from shallow_water import Domain |
---|
1358 | from Numeric import zeros, Float |
---|
1359 | |
---|
1360 | #Create basic mesh |
---|
1361 | points, vertices, boundary = rectangular(1, 3) |
---|
1362 | |
---|
1363 | #print "points",points |
---|
1364 | #print "vertices",vertices |
---|
1365 | #print "boundary",boundary |
---|
1366 | |
---|
1367 | #Create shallow water domain |
---|
1368 | domain = Domain(points, vertices, boundary) |
---|
1369 | #print "domain.number_of_elements ",domain.number_of_elements |
---|
1370 | quantity = Quantity(domain,[[0,0,0],[1,1,1],[2,2,2],[3,3,3], |
---|
1371 | [4,4,4],[5,5,5]]) |
---|
1372 | |
---|
1373 | #print "quantity.get_values(location = 'unique vertices')", \ |
---|
1374 | # quantity.get_values(location = 'unique vertices') |
---|
1375 | |
---|
1376 | #print "quantity.get_values(location = 'unique vertices')", \ |
---|
1377 | # quantity.get_values(indices=[0,1,2,3,4,5,6,7], \ |
---|
1378 | # location = 'unique vertices') |
---|
1379 | |
---|
1380 | answer = [0.5,2,4,5,0,1,3,4.5] |
---|
1381 | assert allclose(answer, |
---|
1382 | quantity.get_values(location = 'unique vertices')) |
---|
1383 | |
---|
1384 | indices = [0,5,3] |
---|
1385 | answer = [0.5,1,5] |
---|
1386 | assert allclose(answer, |
---|
1387 | quantity.get_values(indices=indices, \ |
---|
1388 | location = 'unique vertices')) |
---|
1389 | #print "quantity.centroid_values",quantity.centroid_values |
---|
1390 | #print "quantity.get_values(location = 'centroids') ",\ |
---|
1391 | # quantity.get_values(location = 'centroids') |
---|
1392 | |
---|
1393 | def test_getting_some_vertex_values(self): |
---|
1394 | """ |
---|
1395 | get values based on triangle lists. |
---|
1396 | """ |
---|
1397 | from mesh_factory import rectangular |
---|
1398 | from shallow_water import Domain |
---|
1399 | from Numeric import zeros, Float |
---|
1400 | |
---|
1401 | #Create basic mesh |
---|
1402 | points, vertices, boundary = rectangular(1, 3) |
---|
1403 | |
---|
1404 | #print "points",points |
---|
1405 | #print "vertices",vertices |
---|
1406 | #print "boundary",boundary |
---|
1407 | |
---|
1408 | #Create shallow water domain |
---|
1409 | domain = Domain(points, vertices, boundary) |
---|
1410 | #print "domain.number_of_elements ",domain.number_of_elements |
---|
1411 | quantity = Quantity(domain,[[1,1,1],[2,2,2],[3,3,3], |
---|
1412 | [4,4,4],[5,5,5],[6,6,6]]) |
---|
1413 | value = [7] |
---|
1414 | indices = [1] |
---|
1415 | quantity.set_values(value, |
---|
1416 | location = 'centroids', |
---|
1417 | indices = indices) |
---|
1418 | #print "quantity.centroid_values",quantity.centroid_values |
---|
1419 | #print "quantity.get_values(location = 'centroids') ",\ |
---|
1420 | # quantity.get_values(location = 'centroids') |
---|
1421 | assert allclose(quantity.centroid_values, |
---|
1422 | quantity.get_values(location = 'centroids')) |
---|
1423 | |
---|
1424 | |
---|
1425 | value = [[15,20,25]] |
---|
1426 | quantity.set_values(value, indices = indices) |
---|
1427 | #print "1 quantity.vertex_values",quantity.vertex_values |
---|
1428 | assert allclose(quantity.vertex_values, quantity.get_values()) |
---|
1429 | |
---|
1430 | assert allclose(quantity.edge_values, |
---|
1431 | quantity.get_values(location = 'edges')) |
---|
1432 | |
---|
1433 | # get a subset of elements |
---|
1434 | subset = quantity.get_values(location='centroids', indices=[0,5]) |
---|
1435 | answer = [quantity.centroid_values[0],quantity.centroid_values[5]] |
---|
1436 | assert allclose(subset, answer) |
---|
1437 | |
---|
1438 | |
---|
1439 | subset = quantity.get_values(location='edges', indices=[0,5]) |
---|
1440 | answer = [quantity.edge_values[0],quantity.edge_values[5]] |
---|
1441 | #print "subset",subset |
---|
1442 | #print "answer",answer |
---|
1443 | assert allclose(subset, answer) |
---|
1444 | |
---|
1445 | subset = quantity.get_values( indices=[1,5]) |
---|
1446 | answer = [quantity.vertex_values[1],quantity.vertex_values[5]] |
---|
1447 | #print "subset",subset |
---|
1448 | #print "answer",answer |
---|
1449 | assert allclose(subset, answer) |
---|
1450 | |
---|
1451 | |
---|
1452 | |
---|
1453 | |
---|
1454 | #------------------------------------------------------------- |
---|
1455 | if __name__ == "__main__": |
---|
1456 | suite = unittest.makeSuite(Test_Quantity, 'test') |
---|
1457 | #print "restricted test" |
---|
1458 | #suite = unittest.makeSuite(Test_Quantity,'test_set_values_func') |
---|
1459 | runner = unittest.TextTestRunner() |
---|
1460 | runner.run(suite) |
---|