1 | import unittest |
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2 | from Numeric import array, allclose |
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3 | |
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4 | from quad import Cell, build_quadtree |
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5 | from anuga.abstract_2d_finite_volumes.general_mesh import General_mesh as Mesh |
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6 | |
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7 | import types, sys |
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8 | |
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9 | #------------------------------------------------------------- |
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10 | |
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11 | class Test_Quad(unittest.TestCase): |
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12 | |
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13 | def setUp(self): |
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14 | self.cell = Cell(100, 140, 0, 40, 'cell') |
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15 | |
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16 | a = [3, 107] |
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17 | b = [5, 107] |
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18 | c = [5, 105] |
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19 | d = [7, 107] |
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20 | e = [15, 115] |
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21 | f = [15, 130] |
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22 | g = [30, 110] |
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23 | h = [30, 130] |
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24 | |
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25 | points = [a, b, c, d, e, f, g, h] |
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26 | |
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27 | #bac, bce, ecf, dbe, daf, dae |
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28 | vertices = [[1,0,2], [1,3,4], [1,2,3], [5,4,7], [4,6,7]] |
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29 | |
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30 | mesh = Mesh(points, vertices) |
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31 | self.mesh = mesh |
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32 | Cell.initialise(mesh) |
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33 | |
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34 | def tearDown(self): |
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35 | pass |
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36 | |
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37 | def test_add_points_2_cell(self): |
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38 | self.cell.insert(0) |
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39 | self.cell.insert(1) |
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40 | |
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41 | result = self.cell.retrieve() |
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42 | assert type(result) in [types.ListType,types.TupleType],\ |
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43 | 'should be a list' |
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44 | self.assertEqual(len(result),2) |
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45 | |
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46 | def test_add_points_2_cellII(self): |
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47 | self.cell.insert([0,1,2,3,4,5,6,7]) |
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48 | |
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49 | result = self.cell.retrieve() |
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50 | assert type(result) in [types.ListType,types.TupleType],\ |
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51 | 'should be a list' |
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52 | self.assertEqual(len(result),8) |
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53 | |
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54 | |
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55 | def test_search(self): |
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56 | self.cell.insert([0,1,2,3,4,5,6,7]) |
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57 | self.cell.split(4) |
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58 | |
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59 | result = self.cell.search(x = 1, y = 101, get_vertices=True) |
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60 | assert type(result) in [types.ListType,types.TupleType],\ |
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61 | 'should be a list' |
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62 | self.assertEqual(result, [0,1,2,3]) |
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63 | |
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64 | |
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65 | def test_clear_1(self): |
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66 | self.cell.insert([0,1,2,3,4,5,6,7]) |
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67 | assert self.cell.count() == 8 |
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68 | self.cell.clear() |
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69 | |
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70 | #This one actually revealed a bug :-) |
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71 | assert self.cell.count() == 0 |
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72 | |
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73 | def test_clear_2(self): |
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74 | self.cell.insert([0,1,2,3,4,5,6,7]) |
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75 | assert self.cell.count() == 8 |
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76 | self.cell.split(2) |
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77 | assert self.cell.count() == 8 |
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78 | |
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79 | self.cell.clear() |
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80 | assert self.cell.count() == 0 |
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81 | |
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82 | |
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83 | |
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84 | def test_split(self): |
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85 | self.cell.insert([0,1,2,3,4,5,6,7], split = False) |
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86 | |
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87 | #No children yet |
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88 | assert self.cell.children is None |
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89 | assert self.cell.count() == 8 |
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90 | |
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91 | #Split |
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92 | self.cell.split(4) |
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93 | #self.cell.show() |
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94 | #self.cell.show_all() |
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95 | |
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96 | |
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97 | #Now there are children |
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98 | assert self.cell.children is not None |
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99 | assert self.cell.count() == 8 |
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100 | |
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101 | |
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102 | |
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103 | def test_collapse(self): |
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104 | self.cell.insert([0,1,2,3,4,5,6,7], split = False) |
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105 | |
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106 | #Split maximally |
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107 | self.cell.split(1) |
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108 | |
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109 | #Now there are children |
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110 | assert self.cell.children is not None |
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111 | assert self.cell.count() == 8 |
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112 | |
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113 | #Collapse |
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114 | self.cell.collapse(8) |
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115 | |
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116 | #No children |
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117 | assert self.cell.children is None |
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118 | assert self.cell.count() == 8 |
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119 | |
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120 | def test_build_quadtree(self): |
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121 | |
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122 | Q = build_quadtree(self.mesh) |
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123 | #Q.show() |
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124 | #print Q.count() |
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125 | assert Q.count() == 8 |
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126 | |
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127 | |
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128 | |
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129 | result = Q.search(3, 105, get_vertices=True) |
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130 | assert type(result) in [types.ListType,types.TupleType],\ |
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131 | 'should be a list' |
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132 | #print "result",result |
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133 | self.assertEqual(result, [0,1,2,3]) |
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134 | |
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135 | |
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136 | def test_build_quadtreeII(self): |
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137 | |
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138 | self.cell = Cell(100, 140, 0, 40, 'cell') |
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139 | |
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140 | p0 = [34.6292076111,-7999.92529297] |
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141 | p1 = [8000.0, 7999.0] |
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142 | p2 = [-7999.96630859, 7999.0] |
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143 | p3 = [34, 7999.97021484] |
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144 | |
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145 | points = [p0,p1,p2, p3] |
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146 | #bac, bce, ecf, dbe, daf, dae |
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147 | vertices = [[0,1,2],[0,2,3]] |
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148 | |
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149 | mesh = Mesh(points, vertices) |
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150 | |
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151 | #This was causing round off error |
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152 | Q = build_quadtree(mesh) |
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153 | |
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154 | def test_retrieve_triangles(self): |
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155 | |
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156 | cell = Cell(0, 6, 0, 6, 'cell', max_points_per_cell=4) |
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157 | |
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158 | p0 = [2,1] |
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159 | p1 = [4,1] |
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160 | p2 = [4.,4] |
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161 | p3 = [2,4] |
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162 | p4 = [5,4] |
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163 | |
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164 | points = [p0,p1,p2, p3, p4] |
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165 | # |
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166 | vertices = [[0,1,2],[0,2,3],[1,4,2]] |
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167 | |
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168 | mesh = Mesh(points, vertices) |
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169 | |
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170 | Q = build_quadtree(mesh) |
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171 | results = Q.search(5,1) |
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172 | assert len(results),2 |
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173 | #print "results", results |
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174 | #print "results[0][0]", results[0][0] |
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175 | assert results[0],0 |
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176 | assert results[1],2 |
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177 | assert results[0][1],[[ 2., 1.], |
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178 | [ 4., 1.], |
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179 | [ 4., 4.]] |
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180 | assert results[1][1],[[ 4., 1.], |
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181 | [ 5., 4.], |
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182 | [ 4., 4.]] |
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183 | # this is the normals |
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184 | assert results[0][1][1],[[1., 0.], |
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185 | [-0.83205029, 0.5547002], |
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186 | [ 0., -1.]] |
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187 | |
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188 | # assert allclose(array(results),[[[ 2., 1.], |
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189 | #[ 4., 1.], [ 4., 4.]], [[ 4., 1.],[ 5., 4.],[ 4., 4.]]] ) |
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190 | results = Q.search(5,4.) |
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191 | ### print "results",results |
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192 | # results_dic={} |
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193 | # results_dic.update(results) |
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194 | assert len(results),3 |
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195 | #print "results_dic[0]", results_dic[0] |
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196 | assert results[0][1],[[ 2., 1.], |
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197 | [ 4., 1.], |
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198 | [ 4., 4.]] |
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199 | assert results[1][1],[[ 2., 1.], |
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200 | [ 4., 4.], |
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201 | [ 2., 4.]] |
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202 | assert results[2][1],[[ 4., 1.], |
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203 | [ 5., 4.], |
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204 | [ 4., 4.]] |
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205 | #assert allclose(array(results),[[[ 2., 1.],[ 4., 1.], [ 4., 4.]] |
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206 | # ,[[ 2., 1.],[ 4., 4.], [ 2., 4.]], |
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207 | #[[ 4., 1.], [ 5., 4.], [ 4., 4.]], |
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208 | # [[ 4., 1.], [ 5., 4.], [ 4., 4.]]]) |
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209 | |
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210 | |
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211 | #------------------------------------------------------------- |
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212 | if __name__ == "__main__": |
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213 | |
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214 | mysuite = unittest.makeSuite(Test_Quad,'test') |
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215 | # mysuite = unittest.makeSuite(Test_Quad,'test_retrieve_triangles') |
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216 | runner = unittest.TextTestRunner() |
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217 | runner.run(mysuite) |
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