1 | import os |
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2 | import unittest |
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3 | import tempfile |
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4 | import numpy as num |
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5 | |
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6 | from anuga.coordinate_transforms.geo_reference import Geo_reference |
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7 | from csv_file import load_csv_as_array, load_csv_as_dict |
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8 | from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular |
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9 | from anuga.shallow_water.shallow_water_domain import Domain |
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10 | from sww import load_sww_as_domain |
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11 | |
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12 | # boundary functions |
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13 | from anuga.shallow_water.boundaries import Reflective_boundary, \ |
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14 | Field_boundary, Transmissive_momentum_set_stage_boundary, \ |
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15 | Transmissive_stage_zero_momentum_boundary |
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16 | from anuga.abstract_2d_finite_volumes.generic_boundary_conditions\ |
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17 | import Transmissive_boundary, Dirichlet_boundary, \ |
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18 | Time_boundary, File_boundary, AWI_boundary |
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19 | |
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20 | |
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21 | class Test_sww(unittest.TestCase): |
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22 | def setUp(self): |
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23 | self.verbose = False |
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24 | pass |
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25 | |
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26 | def tearDown(self): |
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27 | pass |
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28 | |
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29 | def test_sww2domain1(self): |
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30 | ################################################ |
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31 | #Create a test domain, and evolve and save it. |
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32 | ################################################ |
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33 | from mesh_factory import rectangular |
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34 | |
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35 | #Create basic mesh |
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36 | |
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37 | yiel=0.01 |
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38 | points, vertices, boundary = rectangular(10,10) |
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39 | |
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40 | #Create shallow water domain |
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41 | domain = Domain(points, vertices, boundary) |
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42 | domain.geo_reference = Geo_reference(56,11,11) |
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43 | domain.smooth = False |
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44 | domain.store = True |
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45 | domain.set_name('bedslope') |
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46 | domain.default_order=2 |
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47 | #Bed-slope and friction |
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48 | domain.set_quantity('elevation', lambda x,y: -x/3) |
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49 | domain.set_quantity('friction', 0.1) |
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50 | # Boundary conditions |
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51 | from math import sin, pi |
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52 | Br = Reflective_boundary(domain) |
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53 | Bt = Transmissive_boundary(domain) |
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54 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
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55 | Bw = Time_boundary(domain=domain,f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
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56 | |
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57 | #domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
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58 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
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59 | |
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60 | domain.quantities_to_be_stored['xmomentum'] = 2 |
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61 | domain.quantities_to_be_stored['ymomentum'] = 2 |
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62 | #Initial condition |
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63 | h = 0.05 |
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64 | elevation = domain.quantities['elevation'].vertex_values |
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65 | domain.set_quantity('stage', elevation + h) |
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66 | |
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67 | domain.check_integrity() |
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68 | #Evolution |
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69 | #domain.tight_slope_limiters = 1 |
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70 | for t in domain.evolve(yieldstep = yiel, finaltime = 0.05): |
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71 | #domain.write_time() |
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72 | pass |
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73 | |
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74 | |
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75 | |
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76 | filename = domain.datadir + os.sep + domain.get_name() + '.sww' |
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77 | domain2 = load_sww_as_domain(filename, None, fail_if_NaN=False, |
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78 | verbose=self.verbose) |
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79 | #points, vertices, boundary = rectangular(15,15) |
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80 | #domain2.boundary = boundary |
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81 | ################### |
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82 | ##NOW TEST IT!!! |
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83 | ################### |
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84 | |
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85 | os.remove(filename) |
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86 | |
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87 | bits = ['vertex_coordinates'] |
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88 | for quantity in domain.quantities_to_be_stored: |
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89 | bits.append('get_quantity("%s").get_integral()' % quantity) |
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90 | bits.append('get_quantity("%s").get_values()' % quantity) |
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91 | |
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92 | for bit in bits: |
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93 | #print 'testing that domain.'+bit+' has been restored' |
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94 | #print bit |
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95 | #print 'done' |
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96 | assert num.allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
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97 | |
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98 | ###################################### |
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99 | #Now evolve them both, just to be sure |
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100 | ######################################x |
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101 | domain.time = 0. |
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102 | from time import sleep |
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103 | |
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104 | final = .1 |
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105 | domain.set_quantity('friction', 0.1) |
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106 | domain.store = False |
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107 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
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108 | |
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109 | |
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110 | for t in domain.evolve(yieldstep = yiel, finaltime = final): |
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111 | #domain.write_time() |
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112 | pass |
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113 | |
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114 | final = final - (domain2.starttime-domain.starttime) |
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115 | #BUT since domain1 gets time hacked back to 0: |
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116 | final = final + (domain2.starttime-domain.starttime) |
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117 | |
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118 | domain2.smooth = False |
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119 | domain2.store = False |
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120 | domain2.default_order=2 |
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121 | domain2.set_quantity('friction', 0.1) |
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122 | #Bed-slope and friction |
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123 | # Boundary conditions |
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124 | Bd2=Dirichlet_boundary([0.2,0.,0.]) |
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125 | domain2.boundary = domain.boundary |
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126 | #print 'domain2.boundary' |
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127 | #print domain2.boundary |
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128 | domain2.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
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129 | #domain2.set_boundary({'exterior': Bd}) |
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130 | |
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131 | domain2.check_integrity() |
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132 | |
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133 | for t in domain2.evolve(yieldstep = yiel, finaltime = final): |
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134 | #domain2.write_time() |
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135 | pass |
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136 | |
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137 | ################### |
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138 | ##NOW TEST IT!!! |
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139 | ################## |
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140 | |
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141 | bits = ['vertex_coordinates'] |
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142 | |
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143 | for quantity in ['elevation','stage', 'ymomentum','xmomentum']: |
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144 | bits.append('get_quantity("%s").get_integral()' %quantity) |
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145 | bits.append('get_quantity("%s").get_values()' %quantity) |
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146 | |
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147 | #print bits |
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148 | for bit in bits: |
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149 | #print bit |
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150 | #print eval('domain.'+bit) |
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151 | #print eval('domain2.'+bit) |
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152 | |
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153 | #print eval('domain.'+bit+'-domain2.'+bit) |
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154 | msg = 'Values in the two domains are different for ' + bit |
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155 | assert num.allclose(eval('domain.'+bit),eval('domain2.'+bit), |
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156 | rtol=1.e-5, atol=3.e-8), msg |
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157 | |
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158 | |
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159 | |
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160 | ################################################################################# |
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161 | |
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162 | if __name__ == "__main__": |
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163 | suite = unittest.makeSuite(Test_sww, 'test') |
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164 | runner = unittest.TextTestRunner(verbosity=1) |
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165 | runner.run(suite) |
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