1 | #!/usr/bin/env python |
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2 | # |
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3 | |
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4 | import unittest |
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5 | import copy |
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6 | from Numeric import zeros, array, allclose, Float |
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7 | from util import mean |
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8 | |
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9 | from data_manager import * |
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10 | from shallow_water import * |
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11 | from config import epsilon |
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12 | |
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13 | class Test_Data_Manager(unittest.TestCase): |
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14 | def setUp(self): |
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15 | import time |
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16 | from mesh_factory import rectangular |
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17 | |
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18 | |
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19 | #Create basic mesh |
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20 | points, vertices, boundary = rectangular(2, 2) |
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21 | |
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22 | #Create shallow water domain |
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23 | domain = Domain(points, vertices, boundary) |
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24 | domain.default_order=2 |
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25 | |
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26 | |
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27 | #Set some field values |
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28 | domain.set_quantity('elevation', lambda x,y: -x) |
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29 | domain.set_quantity('friction', 0.03) |
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30 | |
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31 | |
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32 | ###################### |
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33 | # Boundary conditions |
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34 | B = Transmissive_boundary(domain) |
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35 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
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36 | |
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37 | |
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38 | ###################### |
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39 | #Initial condition - with jumps |
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40 | |
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41 | |
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42 | bed = domain.quantities['elevation'].vertex_values |
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43 | stage = zeros(bed.shape, Float) |
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44 | |
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45 | h = 0.3 |
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46 | for i in range(stage.shape[0]): |
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47 | if i % 2 == 0: |
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48 | stage[i,:] = bed[i,:] + h |
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49 | else: |
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50 | stage[i,:] = bed[i,:] |
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51 | |
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52 | domain.set_quantity('stage', stage) |
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53 | self.initial_stage = copy.copy(domain.quantities['stage'].vertex_values) |
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54 | |
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55 | domain.distribute_to_vertices_and_edges() |
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56 | |
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57 | |
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58 | self.domain = domain |
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59 | |
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60 | C = domain.get_vertex_coordinates() |
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61 | self.X = C[:,0:6:2].copy() |
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62 | self.Y = C[:,1:6:2].copy() |
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63 | |
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64 | self.F = bed |
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65 | |
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66 | |
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67 | def tearDown(self): |
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68 | pass |
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69 | |
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70 | |
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71 | |
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72 | |
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73 | # def test_xya(self): |
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74 | # import os |
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75 | # from Numeric import concatenate |
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76 | |
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77 | # import time, os |
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78 | # from Numeric import array, zeros, allclose, Float, concatenate |
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79 | |
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80 | # domain = self.domain |
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81 | |
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82 | # domain.filename = 'datatest' + str(time.time()) |
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83 | # domain.format = 'xya' |
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84 | # domain.smooth = True |
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85 | |
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86 | # xya = get_dataobject(self.domain) |
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87 | # xya.store_all() |
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88 | |
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89 | |
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90 | # #Read back |
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91 | # file = open(xya.filename) |
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92 | # lFile = file.read().split('\n') |
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93 | # lFile = lFile[:-1] |
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94 | |
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95 | # file.close() |
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96 | # os.remove(xya.filename) |
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97 | |
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98 | # #Check contents |
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99 | # if domain.smooth: |
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100 | # self.failUnless(lFile[0] == '9 3 # <vertex #> <x> <y> [attributes]') |
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101 | # else: |
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102 | # self.failUnless(lFile[0] == '24 3 # <vertex #> <x> <y> [attributes]') |
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103 | |
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104 | # #Get smoothed field values with X and Y |
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105 | # X,Y,F,V = domain.get_vertex_values(xy=True, value_array='field_values', |
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106 | # indices = (0,1), precision = Float) |
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107 | |
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108 | |
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109 | # Q,V = domain.get_vertex_values(xy=False, value_array='conserved_quantities', |
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110 | # indices = (0,), precision = Float) |
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111 | |
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112 | |
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113 | |
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114 | # for i, line in enumerate(lFile[1:]): |
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115 | # fields = line.split() |
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116 | |
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117 | # assert len(fields) == 5 |
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118 | |
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119 | # assert allclose(float(fields[0]), X[i]) |
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120 | # assert allclose(float(fields[1]), Y[i]) |
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121 | # assert allclose(float(fields[2]), F[i,0]) |
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122 | # assert allclose(float(fields[3]), Q[i,0]) |
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123 | # assert allclose(float(fields[4]), F[i,1]) |
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124 | |
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125 | |
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126 | |
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127 | |
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128 | def test_sww_constant(self): |
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129 | """Test that constant sww information can be written correctly |
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130 | (non smooth) |
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131 | """ |
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132 | |
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133 | import time, os |
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134 | from Numeric import array, zeros, allclose, Float, concatenate |
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135 | from Scientific.IO.NetCDF import NetCDFFile |
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136 | |
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137 | self.domain.filename = 'datatest' + str(id(self)) |
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138 | self.domain.format = 'sww' |
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139 | self.domain.smooth = False |
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140 | |
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141 | sww = get_dataobject(self.domain) |
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142 | sww.store_connectivity() |
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143 | |
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144 | #Check contents |
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145 | #Get NetCDF |
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146 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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147 | |
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148 | # Get the variables |
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149 | x = fid.variables['x'] |
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150 | y = fid.variables['y'] |
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151 | z = fid.variables['elevation'] |
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152 | |
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153 | volumes = fid.variables['volumes'] |
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154 | |
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155 | |
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156 | assert allclose (x[:], self.X.flat) |
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157 | assert allclose (y[:], self.Y.flat) |
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158 | assert allclose (z[:], self.F.flat) |
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159 | |
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160 | V = volumes |
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161 | |
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162 | P = len(self.domain) |
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163 | for k in range(P): |
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164 | assert V[k, 0] == 3*k |
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165 | assert V[k, 1] == 3*k+1 |
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166 | assert V[k, 2] == 3*k+2 |
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167 | |
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168 | |
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169 | fid.close() |
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170 | |
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171 | #Cleanup |
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172 | os.remove(sww.filename) |
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173 | |
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174 | |
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175 | def test_sww_constant_smooth(self): |
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176 | """Test that constant sww information can be written correctly |
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177 | (non smooth) |
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178 | """ |
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179 | |
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180 | import time, os |
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181 | from Numeric import array, zeros, allclose, Float, concatenate |
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182 | from Scientific.IO.NetCDF import NetCDFFile |
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183 | |
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184 | self.domain.filename = 'datatest' + str(id(self)) |
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185 | self.domain.format = 'sww' |
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186 | self.domain.smooth = True |
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187 | |
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188 | sww = get_dataobject(self.domain) |
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189 | sww.store_connectivity() |
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190 | |
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191 | #Check contents |
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192 | #Get NetCDF |
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193 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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194 | |
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195 | # Get the variables |
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196 | x = fid.variables['x'] |
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197 | y = fid.variables['y'] |
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198 | z = fid.variables['elevation'] |
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199 | |
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200 | volumes = fid.variables['volumes'] |
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201 | |
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202 | X = x[:] |
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203 | Y = y[:] |
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204 | |
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205 | assert allclose([X[0], Y[0]], array([0.0, 0.0])) |
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206 | assert allclose([X[1], Y[1]], array([0.0, 0.5])) |
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207 | assert allclose([X[2], Y[2]], array([0.0, 1.0])) |
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208 | |
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209 | assert allclose([X[4], Y[4]], array([0.5, 0.5])) |
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210 | |
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211 | assert allclose([X[7], Y[7]], array([1.0, 0.5])) |
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212 | |
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213 | Z = z[:] |
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214 | assert Z[4] == -0.5 |
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215 | |
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216 | V = volumes |
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217 | assert V[2,0] == 4 |
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218 | assert V[2,1] == 5 |
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219 | assert V[2,2] == 1 |
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220 | |
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221 | assert V[4,0] == 6 |
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222 | assert V[4,1] == 7 |
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223 | assert V[4,2] == 3 |
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224 | |
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225 | |
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226 | fid.close() |
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227 | |
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228 | #Cleanup |
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229 | os.remove(sww.filename) |
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230 | |
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231 | |
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232 | |
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233 | def test_sww_variable(self): |
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234 | """Test that sww information can be written correctly |
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235 | """ |
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236 | |
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237 | import time, os |
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238 | from Numeric import array, zeros, allclose, Float, concatenate |
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239 | from Scientific.IO.NetCDF import NetCDFFile |
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240 | |
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241 | self.domain.filename = 'datatest' + str(id(self)) |
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242 | self.domain.format = 'sww' |
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243 | self.domain.smooth = True |
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244 | self.domain.reduction = mean |
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245 | |
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246 | sww = get_dataobject(self.domain) |
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247 | sww.store_connectivity() |
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248 | sww.store_timestep('stage') |
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249 | |
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250 | #Check contents |
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251 | #Get NetCDF |
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252 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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253 | |
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254 | |
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255 | # Get the variables |
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256 | x = fid.variables['x'] |
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257 | y = fid.variables['y'] |
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258 | z = fid.variables['elevation'] |
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259 | time = fid.variables['time'] |
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260 | stage = fid.variables['stage'] |
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261 | |
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262 | |
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263 | Q = self.domain.quantities['stage'] |
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264 | Q0 = Q.vertex_values[:,0] |
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265 | Q1 = Q.vertex_values[:,1] |
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266 | Q2 = Q.vertex_values[:,2] |
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267 | |
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268 | A = stage[0,:] |
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269 | #print A[0], (Q2[0,0] + Q1[1,0])/2 |
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270 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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271 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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272 | assert allclose(A[2], Q0[3]) |
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273 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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274 | |
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275 | #Center point |
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276 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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277 | Q0[5] + Q2[6] + Q1[7])/6) |
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278 | |
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279 | |
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280 | |
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281 | fid.close() |
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282 | |
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283 | #Cleanup |
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284 | os.remove(sww.filename) |
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285 | |
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286 | |
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287 | def test_sww_variable2(self): |
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288 | """Test that sww information can be written correctly |
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289 | multiple timesteps. Use average as reduction operator |
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290 | """ |
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291 | |
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292 | import time, os |
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293 | from Numeric import array, zeros, allclose, Float, concatenate |
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294 | from Scientific.IO.NetCDF import NetCDFFile |
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295 | |
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296 | self.domain.filename = 'datatest' + str(id(self)) |
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297 | self.domain.format = 'sww' |
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298 | self.domain.smooth = True |
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299 | |
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300 | self.domain.reduction = mean |
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301 | |
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302 | sww = get_dataobject(self.domain) |
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303 | sww.store_connectivity() |
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304 | sww.store_timestep('stage') |
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305 | self.domain.evolve_to_end(finaltime = 0.01) |
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306 | sww.store_timestep('stage') |
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307 | |
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308 | |
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309 | #Check contents |
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310 | #Get NetCDF |
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311 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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312 | |
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313 | # Get the variables |
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314 | x = fid.variables['x'] |
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315 | y = fid.variables['y'] |
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316 | z = fid.variables['elevation'] |
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317 | time = fid.variables['time'] |
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318 | stage = fid.variables['stage'] |
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319 | |
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320 | #Check values |
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321 | Q = self.domain.quantities['stage'] |
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322 | Q0 = Q.vertex_values[:,0] |
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323 | Q1 = Q.vertex_values[:,1] |
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324 | Q2 = Q.vertex_values[:,2] |
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325 | |
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326 | A = stage[1,:] |
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327 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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328 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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329 | assert allclose(A[2], Q0[3]) |
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330 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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331 | |
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332 | #Center point |
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333 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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334 | Q0[5] + Q2[6] + Q1[7])/6) |
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335 | |
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336 | |
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337 | |
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338 | |
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339 | |
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340 | fid.close() |
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341 | |
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342 | #Cleanup |
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343 | os.remove(sww.filename) |
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344 | |
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345 | def test_sww_variable3(self): |
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346 | """Test that sww information can be written correctly |
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347 | multiple timesteps using a different reduction operator (min) |
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348 | """ |
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349 | |
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350 | import time, os |
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351 | from Numeric import array, zeros, allclose, Float, concatenate |
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352 | from Scientific.IO.NetCDF import NetCDFFile |
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353 | |
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354 | self.domain.filename = 'datatest' + str(id(self)) |
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355 | self.domain.format = 'sww' |
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356 | self.domain.smooth = True |
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357 | self.domain.reduction = min |
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358 | |
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359 | sww = get_dataobject(self.domain) |
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360 | sww.store_connectivity() |
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361 | sww.store_timestep('stage') |
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362 | |
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363 | self.domain.evolve_to_end(finaltime = 0.01) |
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364 | sww.store_timestep('stage') |
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365 | |
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366 | |
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367 | #Check contents |
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368 | #Get NetCDF |
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369 | fid = NetCDFFile(sww.filename, 'r') |
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370 | |
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371 | |
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372 | # Get the variables |
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373 | x = fid.variables['x'] |
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374 | y = fid.variables['y'] |
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375 | z = fid.variables['elevation'] |
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376 | time = fid.variables['time'] |
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377 | stage = fid.variables['stage'] |
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378 | |
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379 | #Check values |
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380 | Q = self.domain.quantities['stage'] |
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381 | Q0 = Q.vertex_values[:,0] |
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382 | Q1 = Q.vertex_values[:,1] |
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383 | Q2 = Q.vertex_values[:,2] |
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384 | |
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385 | A = stage[1,:] |
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386 | assert allclose(A[0], min(Q2[0], Q1[1])) |
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387 | assert allclose(A[1], min(Q0[1], Q1[3], Q2[2])) |
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388 | assert allclose(A[2], Q0[3]) |
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389 | assert allclose(A[3], min(Q0[0], Q1[5], Q2[4])) |
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390 | |
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391 | #Center point |
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392 | assert allclose(A[4], min(Q1[0], Q2[1], Q0[2],\ |
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393 | Q0[5], Q2[6], Q1[7])) |
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394 | |
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395 | |
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396 | fid.close() |
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397 | |
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398 | #Cleanup |
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399 | os.remove(sww.filename) |
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400 | |
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401 | |
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402 | def test_sync(self): |
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403 | """Test info stored at each timestep is as expected (incl initial condition) |
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404 | """ |
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405 | |
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406 | import time, os, config |
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407 | from Numeric import array, zeros, allclose, Float, concatenate |
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408 | from Scientific.IO.NetCDF import NetCDFFile |
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409 | |
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410 | self.domain.filename = 'synctest' |
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411 | self.domain.format = 'sww' |
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412 | self.domain.smooth = False |
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413 | self.domain.store = True |
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414 | self.domain.beta_h = 0 |
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415 | |
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416 | #Evolution |
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417 | for t in self.domain.evolve(yieldstep = 1.0, finaltime = 4.0): |
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418 | stage = self.domain.quantities['stage'].vertex_values |
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419 | |
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420 | #Get NetCDF |
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421 | fid = NetCDFFile(self.domain.writer.filename, 'r') |
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422 | stage_file = fid.variables['stage'] |
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423 | |
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424 | if t == 0.0: |
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425 | assert allclose(stage, self.initial_stage) |
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426 | assert allclose(stage_file[:], stage.flat) |
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427 | else: |
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428 | assert not allclose(stage, self.initial_stage) |
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429 | assert not allclose(stage_file[:], stage.flat) |
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430 | |
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431 | fid.close() |
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432 | os.remove(self.domain.writer.filename) |
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433 | |
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434 | |
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435 | |
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436 | def test_sww_DSG(self): |
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437 | """Not a test, rather a look at the sww format |
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438 | """ |
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439 | |
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440 | import time, os |
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441 | from Numeric import array, zeros, allclose, Float, concatenate |
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442 | from Scientific.IO.NetCDF import NetCDFFile |
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443 | |
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444 | self.domain.filename = 'datatest' + str(id(self)) |
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445 | self.domain.format = 'sww' |
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446 | self.domain.smooth = True |
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447 | self.domain.reduction = mean |
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448 | |
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449 | sww = get_dataobject(self.domain) |
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450 | sww.store_connectivity() |
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451 | sww.store_timestep('stage') |
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452 | |
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453 | #Check contents |
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454 | #Get NetCDF |
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455 | fid = NetCDFFile(sww.filename, 'r') |
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456 | |
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457 | # Get the variables |
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458 | x = fid.variables['x'] |
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459 | y = fid.variables['y'] |
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460 | z = fid.variables['elevation'] |
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461 | |
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462 | volumes = fid.variables['volumes'] |
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463 | time = fid.variables['time'] |
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464 | |
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465 | # 2D |
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466 | stage = fid.variables['stage'] |
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467 | |
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468 | X = x[:] |
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469 | Y = y[:] |
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470 | Z = z[:] |
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471 | V = volumes[:] |
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472 | T = time[:] |
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473 | S = stage[:,:] |
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474 | |
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475 | # print "****************************" |
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476 | # print "X ",X |
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477 | # print "****************************" |
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478 | # print "Y ",Y |
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479 | # print "****************************" |
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480 | # print "Z ",Z |
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481 | # print "****************************" |
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482 | # print "V ",V |
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483 | # print "****************************" |
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484 | # print "Time ",T |
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485 | # print "****************************" |
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486 | # print "Stage ",S |
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487 | # print "****************************" |
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488 | |
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489 | |
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490 | fid.close() |
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491 | |
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492 | #Cleanup |
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493 | os.remove(sww.filename) |
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494 | |
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495 | |
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496 | |
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497 | def test_dem2pts(self): |
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498 | """Test conversion from dem in ascii format to native NetCDF xya format |
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499 | """ |
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500 | |
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501 | import time, os |
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502 | from Numeric import array, zeros, allclose, Float, concatenate |
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503 | from Scientific.IO.NetCDF import NetCDFFile |
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504 | |
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505 | #Write test asc file |
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506 | root = 'demtest' |
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507 | |
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508 | filename = root+'.asc' |
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509 | fid = open(filename, 'w') |
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510 | fid.write("""ncols 5 |
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511 | nrows 6 |
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512 | xllcorner 2000.5 |
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513 | yllcorner 3000.5 |
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514 | cellsize 25 |
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515 | NODATA_value -9999 |
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516 | """) |
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517 | #Create linear function |
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518 | |
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519 | ref_points = [] |
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520 | ref_elevation = [] |
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521 | for i in range(6): |
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522 | y = (6-i)*25.0 |
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523 | for j in range(5): |
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524 | x = j*25.0 |
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525 | z = x+2*y |
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526 | |
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527 | ref_points.append( [x,y] ) |
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528 | ref_elevation.append(z) |
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529 | fid.write('%f ' %z) |
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530 | fid.write('\n') |
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531 | |
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532 | fid.close() |
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533 | |
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534 | #Write prj file with metadata |
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535 | metafilename = root+'.prj' |
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536 | fid = open(metafilename, 'w') |
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537 | |
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538 | |
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539 | fid.write("""Projection UTM |
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540 | Zone 56 |
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541 | Datum WGS84 |
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542 | Zunits NO |
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543 | Units METERS |
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544 | Spheroid WGS84 |
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545 | Xshift 0.0000000000 |
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546 | Yshift 10000000.0000000000 |
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547 | Parameters |
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548 | """) |
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549 | fid.close() |
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550 | |
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551 | #Convert to NetCDF pts |
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552 | convert_dem_from_ascii2netcdf(root) |
---|
553 | dem2pts(root) |
---|
554 | |
---|
555 | #Check contents |
---|
556 | #Get NetCDF |
---|
557 | fid = NetCDFFile(root+'.pts', 'r') |
---|
558 | |
---|
559 | # Get the variables |
---|
560 | #print fid.variables.keys() |
---|
561 | points = fid.variables['points'] |
---|
562 | elevation = fid.variables['elevation'] |
---|
563 | |
---|
564 | #Check values |
---|
565 | |
---|
566 | #print points[:] |
---|
567 | #print ref_points |
---|
568 | assert allclose(points, ref_points) |
---|
569 | |
---|
570 | #print attributes[:] |
---|
571 | #print ref_elevation |
---|
572 | assert allclose(elevation, ref_elevation) |
---|
573 | |
---|
574 | #Cleanup |
---|
575 | fid.close() |
---|
576 | |
---|
577 | |
---|
578 | os.remove(root + '.pts') |
---|
579 | os.remove(root + '.dem') |
---|
580 | os.remove(root + '.asc') |
---|
581 | os.remove(root + '.prj') |
---|
582 | |
---|
583 | |
---|
584 | |
---|
585 | def test_sww2asc_elevation(self): |
---|
586 | """Test that sww information can be converted correctly to asc/prj |
---|
587 | format readable by e.g. ArcView |
---|
588 | """ |
---|
589 | |
---|
590 | import time, os |
---|
591 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
592 | from Scientific.IO.NetCDF import NetCDFFile |
---|
593 | |
---|
594 | #Setup |
---|
595 | self.domain.filename = 'datatest' |
---|
596 | |
---|
597 | prjfile = self.domain.filename + '.prj' |
---|
598 | ascfile = self.domain.filename + '.asc' |
---|
599 | swwfile = self.domain.filename + '.sww' |
---|
600 | |
---|
601 | self.domain.set_datadir('.') |
---|
602 | self.domain.format = 'sww' |
---|
603 | self.domain.smooth = True |
---|
604 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
605 | |
---|
606 | self.domain.xllcorner = 308500 |
---|
607 | self.domain.yllcorner = 6189000 |
---|
608 | self.domain.zone = 56 |
---|
609 | |
---|
610 | |
---|
611 | sww = get_dataobject(self.domain) |
---|
612 | sww.store_connectivity() |
---|
613 | sww.store_timestep('stage') |
---|
614 | |
---|
615 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
616 | sww.store_timestep('stage') |
---|
617 | |
---|
618 | cellsize = 0.25 |
---|
619 | #Check contents |
---|
620 | #Get NetCDF |
---|
621 | |
---|
622 | fid = NetCDFFile(sww.filename, 'r') |
---|
623 | |
---|
624 | # Get the variables |
---|
625 | x = fid.variables['x'][:] |
---|
626 | y = fid.variables['y'][:] |
---|
627 | z = fid.variables['elevation'][:] |
---|
628 | time = fid.variables['time'][:] |
---|
629 | stage = fid.variables['stage'][:] |
---|
630 | |
---|
631 | |
---|
632 | #Export to ascii/prj files |
---|
633 | sww2asc(self.domain.filename, |
---|
634 | quantity = 'elevation', |
---|
635 | cellsize = cellsize) |
---|
636 | |
---|
637 | |
---|
638 | #Check prj (meta data) |
---|
639 | prjid = open(prjfile) |
---|
640 | |
---|
641 | lines = prjid.readlines() |
---|
642 | prjid.close() |
---|
643 | |
---|
644 | L = lines[0].strip().split() |
---|
645 | assert L[0].strip().lower() == 'projection' |
---|
646 | assert L[1].strip().lower() == 'utm' |
---|
647 | |
---|
648 | L = lines[1].strip().split() |
---|
649 | assert L[0].strip().lower() == 'zone' |
---|
650 | assert L[1].strip().lower() == '56' |
---|
651 | |
---|
652 | L = lines[2].strip().split() |
---|
653 | assert L[0].strip().lower() == 'datum' |
---|
654 | assert L[1].strip().lower() == 'wgs84' |
---|
655 | |
---|
656 | L = lines[3].strip().split() |
---|
657 | assert L[0].strip().lower() == 'zunits' |
---|
658 | assert L[1].strip().lower() == 'no' |
---|
659 | |
---|
660 | L = lines[4].strip().split() |
---|
661 | assert L[0].strip().lower() == 'units' |
---|
662 | assert L[1].strip().lower() == 'meters' |
---|
663 | |
---|
664 | L = lines[5].strip().split() |
---|
665 | assert L[0].strip().lower() == 'spheroid' |
---|
666 | assert L[1].strip().lower() == 'wgs84' |
---|
667 | |
---|
668 | L = lines[6].strip().split() |
---|
669 | assert L[0].strip().lower() == 'xshift' |
---|
670 | assert L[1].strip().lower() == '500000' |
---|
671 | |
---|
672 | L = lines[7].strip().split() |
---|
673 | assert L[0].strip().lower() == 'yshift' |
---|
674 | assert L[1].strip().lower() == '10000000' |
---|
675 | |
---|
676 | L = lines[8].strip().split() |
---|
677 | assert L[0].strip().lower() == 'parameters' |
---|
678 | |
---|
679 | |
---|
680 | #Check asc file |
---|
681 | ascid = open(ascfile) |
---|
682 | lines = ascid.readlines() |
---|
683 | ascid.close() |
---|
684 | |
---|
685 | L = lines[0].strip().split() |
---|
686 | assert L[0].strip().lower() == 'ncols' |
---|
687 | assert L[1].strip().lower() == '5' |
---|
688 | |
---|
689 | L = lines[1].strip().split() |
---|
690 | assert L[0].strip().lower() == 'nrows' |
---|
691 | assert L[1].strip().lower() == '5' |
---|
692 | |
---|
693 | L = lines[2].strip().split() |
---|
694 | assert L[0].strip().lower() == 'xllcorner' |
---|
695 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
696 | |
---|
697 | L = lines[3].strip().split() |
---|
698 | assert L[0].strip().lower() == 'yllcorner' |
---|
699 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
700 | |
---|
701 | L = lines[4].strip().split() |
---|
702 | assert L[0].strip().lower() == 'cellsize' |
---|
703 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
704 | |
---|
705 | L = lines[5].strip().split() |
---|
706 | assert L[0].strip() == 'NODATA_value' |
---|
707 | assert L[1].strip().lower() == '-9999' |
---|
708 | |
---|
709 | #Check grid values |
---|
710 | for j in range(5): |
---|
711 | L = lines[6+j].strip().split() |
---|
712 | y = (4-j) * cellsize |
---|
713 | for i in range(5): |
---|
714 | assert allclose(float(L[i]), -i*cellsize - y) |
---|
715 | |
---|
716 | |
---|
717 | fid.close() |
---|
718 | |
---|
719 | #Cleanup |
---|
720 | os.remove(prjfile) |
---|
721 | os.remove(ascfile) |
---|
722 | os.remove(swwfile) |
---|
723 | |
---|
724 | |
---|
725 | def test_sww2asc_stage_reduction(self): |
---|
726 | """Test that sww information can be converted correctly to asc/prj |
---|
727 | format readable by e.g. ArcView |
---|
728 | |
---|
729 | This tests the reduction of quantity stage using min |
---|
730 | """ |
---|
731 | |
---|
732 | import time, os |
---|
733 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
734 | from Scientific.IO.NetCDF import NetCDFFile |
---|
735 | |
---|
736 | #Setup |
---|
737 | self.domain.filename = 'datatest' |
---|
738 | |
---|
739 | prjfile = self.domain.filename + '.prj' |
---|
740 | ascfile = self.domain.filename + '.asc' |
---|
741 | swwfile = self.domain.filename + '.sww' |
---|
742 | |
---|
743 | self.domain.set_datadir('.') |
---|
744 | self.domain.format = 'sww' |
---|
745 | self.domain.smooth = True |
---|
746 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
747 | |
---|
748 | self.domain.xllcorner = 308500 |
---|
749 | self.domain.yllcorner = 6189000 |
---|
750 | self.domain.zone = 56 |
---|
751 | |
---|
752 | |
---|
753 | sww = get_dataobject(self.domain) |
---|
754 | sww.store_connectivity() |
---|
755 | sww.store_timestep('stage') |
---|
756 | |
---|
757 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
758 | sww.store_timestep('stage') |
---|
759 | |
---|
760 | cellsize = 0.25 |
---|
761 | #Check contents |
---|
762 | #Get NetCDF |
---|
763 | |
---|
764 | fid = NetCDFFile(sww.filename, 'r') |
---|
765 | |
---|
766 | # Get the variables |
---|
767 | x = fid.variables['x'][:] |
---|
768 | y = fid.variables['y'][:] |
---|
769 | z = fid.variables['elevation'][:] |
---|
770 | time = fid.variables['time'][:] |
---|
771 | stage = fid.variables['stage'][:] |
---|
772 | |
---|
773 | |
---|
774 | #Export to ascii/prj files |
---|
775 | sww2asc(self.domain.filename, |
---|
776 | quantity = 'stage', |
---|
777 | cellsize = cellsize, |
---|
778 | reduction = min) |
---|
779 | |
---|
780 | |
---|
781 | #Check asc file |
---|
782 | ascid = open(ascfile) |
---|
783 | lines = ascid.readlines() |
---|
784 | ascid.close() |
---|
785 | |
---|
786 | L = lines[0].strip().split() |
---|
787 | assert L[0].strip().lower() == 'ncols' |
---|
788 | assert L[1].strip().lower() == '5' |
---|
789 | |
---|
790 | L = lines[1].strip().split() |
---|
791 | assert L[0].strip().lower() == 'nrows' |
---|
792 | assert L[1].strip().lower() == '5' |
---|
793 | |
---|
794 | L = lines[2].strip().split() |
---|
795 | assert L[0].strip().lower() == 'xllcorner' |
---|
796 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
797 | |
---|
798 | L = lines[3].strip().split() |
---|
799 | assert L[0].strip().lower() == 'yllcorner' |
---|
800 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
801 | |
---|
802 | L = lines[4].strip().split() |
---|
803 | assert L[0].strip().lower() == 'cellsize' |
---|
804 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
805 | |
---|
806 | L = lines[5].strip().split() |
---|
807 | assert L[0].strip() == 'NODATA_value' |
---|
808 | assert L[1].strip().lower() == '-9999' |
---|
809 | |
---|
810 | |
---|
811 | #Check grid values (where applicable) |
---|
812 | for j in range(5): |
---|
813 | if j%2 == 0: |
---|
814 | L = lines[6+j].strip().split() |
---|
815 | jj = 4-j |
---|
816 | for i in range(5): |
---|
817 | if i%2 == 0: |
---|
818 | index = jj/2 + i/2*3 |
---|
819 | val0 = stage[0,index] |
---|
820 | val1 = stage[1,index] |
---|
821 | |
---|
822 | #print i, j, index, ':', L[i], val0, val1 |
---|
823 | assert allclose(float(L[i]), min(val0, val1)) |
---|
824 | |
---|
825 | |
---|
826 | fid.close() |
---|
827 | |
---|
828 | #Cleanup |
---|
829 | os.remove(prjfile) |
---|
830 | os.remove(ascfile) |
---|
831 | #os.remove(swwfile) |
---|
832 | |
---|
833 | |
---|
834 | |
---|
835 | |
---|
836 | def test_sww2asc_missing_points(self): |
---|
837 | """Test that sww information can be converted correctly to asc/prj |
---|
838 | format readable by e.g. ArcView |
---|
839 | |
---|
840 | This test includes the writing of missing values |
---|
841 | """ |
---|
842 | |
---|
843 | import time, os |
---|
844 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
845 | from Scientific.IO.NetCDF import NetCDFFile |
---|
846 | |
---|
847 | #Setup mesh not coinciding with rectangle. |
---|
848 | #This will cause missing values to occur in gridded data |
---|
849 | |
---|
850 | |
---|
851 | points = [ [1.0, 1.0], |
---|
852 | [0.5, 0.5], [1.0, 0.5], |
---|
853 | [0.0, 0.0], [0.5, 0.0], [1.0, 0.0]] |
---|
854 | |
---|
855 | vertices = [ [4,1,3], [5,2,4], [1,4,2], [2,0,1]] |
---|
856 | |
---|
857 | #Create shallow water domain |
---|
858 | domain = Domain(points, vertices) |
---|
859 | domain.default_order=2 |
---|
860 | |
---|
861 | |
---|
862 | #Set some field values |
---|
863 | domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
864 | domain.set_quantity('friction', 0.03) |
---|
865 | |
---|
866 | |
---|
867 | ###################### |
---|
868 | # Boundary conditions |
---|
869 | B = Transmissive_boundary(domain) |
---|
870 | domain.set_boundary( {'exterior': B} ) |
---|
871 | |
---|
872 | |
---|
873 | ###################### |
---|
874 | #Initial condition - with jumps |
---|
875 | |
---|
876 | bed = domain.quantities['elevation'].vertex_values |
---|
877 | stage = zeros(bed.shape, Float) |
---|
878 | |
---|
879 | h = 0.3 |
---|
880 | for i in range(stage.shape[0]): |
---|
881 | if i % 2 == 0: |
---|
882 | stage[i,:] = bed[i,:] + h |
---|
883 | else: |
---|
884 | stage[i,:] = bed[i,:] |
---|
885 | |
---|
886 | domain.set_quantity('stage', stage) |
---|
887 | domain.distribute_to_vertices_and_edges() |
---|
888 | |
---|
889 | domain.filename = 'datatest' |
---|
890 | |
---|
891 | prjfile = domain.filename + '.prj' |
---|
892 | ascfile = domain.filename + '.asc' |
---|
893 | swwfile = domain.filename + '.sww' |
---|
894 | |
---|
895 | domain.set_datadir('.') |
---|
896 | domain.format = 'sww' |
---|
897 | domain.smooth = True |
---|
898 | |
---|
899 | |
---|
900 | domain.xllcorner = 308500 |
---|
901 | domain.yllcorner = 6189000 |
---|
902 | domain.zone = 56 |
---|
903 | |
---|
904 | |
---|
905 | sww = get_dataobject(domain) |
---|
906 | sww.store_connectivity() |
---|
907 | sww.store_timestep('stage') |
---|
908 | |
---|
909 | cellsize = 0.25 |
---|
910 | #Check contents |
---|
911 | #Get NetCDF |
---|
912 | |
---|
913 | fid = NetCDFFile(swwfile, 'r') |
---|
914 | |
---|
915 | # Get the variables |
---|
916 | x = fid.variables['x'][:] |
---|
917 | y = fid.variables['y'][:] |
---|
918 | z = fid.variables['elevation'][:] |
---|
919 | time = fid.variables['time'][:] |
---|
920 | |
---|
921 | #Export to ascii/prj files |
---|
922 | sww2asc(domain.filename, |
---|
923 | quantity = 'elevation', |
---|
924 | cellsize = cellsize) |
---|
925 | |
---|
926 | |
---|
927 | #Check asc file |
---|
928 | ascid = open(ascfile) |
---|
929 | lines = ascid.readlines() |
---|
930 | ascid.close() |
---|
931 | |
---|
932 | L = lines[0].strip().split() |
---|
933 | assert L[0].strip().lower() == 'ncols' |
---|
934 | assert L[1].strip().lower() == '5' |
---|
935 | |
---|
936 | L = lines[1].strip().split() |
---|
937 | assert L[0].strip().lower() == 'nrows' |
---|
938 | assert L[1].strip().lower() == '5' |
---|
939 | |
---|
940 | L = lines[2].strip().split() |
---|
941 | assert L[0].strip().lower() == 'xllcorner' |
---|
942 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
943 | |
---|
944 | L = lines[3].strip().split() |
---|
945 | assert L[0].strip().lower() == 'yllcorner' |
---|
946 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
947 | |
---|
948 | L = lines[4].strip().split() |
---|
949 | assert L[0].strip().lower() == 'cellsize' |
---|
950 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
951 | |
---|
952 | L = lines[5].strip().split() |
---|
953 | assert L[0].strip() == 'NODATA_value' |
---|
954 | assert L[1].strip().lower() == '-9999' |
---|
955 | |
---|
956 | |
---|
957 | #Check grid values |
---|
958 | for j in range(5): |
---|
959 | L = lines[6+j].strip().split() |
---|
960 | y = (4-j) * cellsize |
---|
961 | for i in range(5): |
---|
962 | if i+j >= 4: |
---|
963 | assert allclose(float(L[i]), -i*cellsize - y) |
---|
964 | else: |
---|
965 | #Missing values |
---|
966 | assert allclose(float(L[i]), -9999) |
---|
967 | |
---|
968 | |
---|
969 | |
---|
970 | fid.close() |
---|
971 | |
---|
972 | #Cleanup |
---|
973 | os.remove(prjfile) |
---|
974 | os.remove(ascfile) |
---|
975 | os.remove(swwfile) |
---|
976 | |
---|
977 | |
---|
978 | def test_ferret2sww(self): |
---|
979 | """Test that georeferencing etc works when converting from |
---|
980 | ferret format (lat/lon) to sww format (UTM) |
---|
981 | """ |
---|
982 | from Scientific.IO.NetCDF import NetCDFFile |
---|
983 | |
---|
984 | #The test file has |
---|
985 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
986 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
987 | # TIME = 0, 0.1, 0.6, 1.1, 1.6, 2.1 ; |
---|
988 | # |
---|
989 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
990 | # Fourth value (index==3) is -6.50198 cm |
---|
991 | |
---|
992 | |
---|
993 | from coordinate_transforms.redfearn import redfearn |
---|
994 | |
---|
995 | fid = NetCDFFile('small_ha.nc') |
---|
996 | first_value = fid.variables['HA'][:][0,0,0] |
---|
997 | fourth_value = fid.variables['HA'][:][0,0,3] |
---|
998 | |
---|
999 | |
---|
1000 | #Call conversion (with zero origin) |
---|
1001 | ferret2sww('small', verbose=False, |
---|
1002 | origin = (56, 0, 0)) |
---|
1003 | |
---|
1004 | |
---|
1005 | #Work out the UTM coordinates for first point |
---|
1006 | zone, e, n = redfearn(-34.5, 150.66667) |
---|
1007 | #print zone, e, n |
---|
1008 | |
---|
1009 | #Read output file 'small.sww' |
---|
1010 | fid = NetCDFFile('small.sww') |
---|
1011 | |
---|
1012 | x = fid.variables['x'][:] |
---|
1013 | y = fid.variables['y'][:] |
---|
1014 | |
---|
1015 | #Check that first coordinate is correctly represented |
---|
1016 | assert allclose(x[0], e) |
---|
1017 | assert allclose(y[0], n) |
---|
1018 | |
---|
1019 | #Check first value |
---|
1020 | stage = fid.variables['stage'][:] |
---|
1021 | xmomentum = fid.variables['xmomentum'][:] |
---|
1022 | ymomentum = fid.variables['ymomentum'][:] |
---|
1023 | |
---|
1024 | #print ymomentum |
---|
1025 | |
---|
1026 | assert allclose(stage[0,0], first_value/100) #Meters |
---|
1027 | |
---|
1028 | #Check fourth value |
---|
1029 | assert allclose(stage[0,3], fourth_value/100) #Meters |
---|
1030 | |
---|
1031 | fid.close() |
---|
1032 | |
---|
1033 | #Cleanup |
---|
1034 | import os |
---|
1035 | os.remove('small.sww') |
---|
1036 | |
---|
1037 | |
---|
1038 | |
---|
1039 | def test_ferret2sww_2(self): |
---|
1040 | """Test that georeferencing etc works when converting from |
---|
1041 | ferret format (lat/lon) to sww format (UTM) |
---|
1042 | """ |
---|
1043 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1044 | |
---|
1045 | #The test file has |
---|
1046 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
1047 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
1048 | # TIME = 0, 0.1, 0.6, 1.1, 1.6, 2.1 ; |
---|
1049 | # |
---|
1050 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
1051 | # Fourth value (index==3) is -6.50198 cm |
---|
1052 | |
---|
1053 | |
---|
1054 | from coordinate_transforms.redfearn import redfearn |
---|
1055 | |
---|
1056 | fid = NetCDFFile('small_ha.nc') |
---|
1057 | |
---|
1058 | #Pick a coordinate and a value |
---|
1059 | |
---|
1060 | time_index = 1 |
---|
1061 | lat_index = 0 |
---|
1062 | lon_index = 2 |
---|
1063 | |
---|
1064 | test_value = fid.variables['HA'][:][time_index, lat_index, lon_index] |
---|
1065 | test_time = fid.variables['TIME'][:][time_index] |
---|
1066 | test_lat = fid.variables['LAT'][:][lat_index] |
---|
1067 | test_lon = fid.variables['LON'][:][lon_index] |
---|
1068 | |
---|
1069 | linear_point_index = lat_index*4 + lon_index |
---|
1070 | fid.close() |
---|
1071 | |
---|
1072 | #Call conversion (with zero origin) |
---|
1073 | ferret2sww('small', verbose=False, |
---|
1074 | origin = (56, 0, 0)) |
---|
1075 | |
---|
1076 | |
---|
1077 | #Work out the UTM coordinates for test point |
---|
1078 | zone, e, n = redfearn(test_lat, test_lon) |
---|
1079 | |
---|
1080 | #Read output file 'small.sww' |
---|
1081 | fid = NetCDFFile('small.sww') |
---|
1082 | |
---|
1083 | x = fid.variables['x'][:] |
---|
1084 | y = fid.variables['y'][:] |
---|
1085 | |
---|
1086 | #Check that test coordinate is correctly represented |
---|
1087 | assert allclose(x[linear_point_index], e) |
---|
1088 | assert allclose(y[linear_point_index], n) |
---|
1089 | |
---|
1090 | #Check test value |
---|
1091 | stage = fid.variables['stage'][:] |
---|
1092 | |
---|
1093 | assert allclose(stage[time_index, linear_point_index], test_value/100) |
---|
1094 | |
---|
1095 | fid.close() |
---|
1096 | |
---|
1097 | #Cleanup |
---|
1098 | import os |
---|
1099 | os.remove('small.sww') |
---|
1100 | |
---|
1101 | |
---|
1102 | |
---|
1103 | def test_ferret2sww3(self): |
---|
1104 | """ |
---|
1105 | """ |
---|
1106 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1107 | |
---|
1108 | #The test file has |
---|
1109 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
1110 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
1111 | # ELEVATION = [-1 -2 -3 -4 |
---|
1112 | # -5 -6 -7 -8 |
---|
1113 | # ... |
---|
1114 | # ... -16] |
---|
1115 | # where the top left corner is -1m, |
---|
1116 | # and the ll corner is -13.0m |
---|
1117 | # |
---|
1118 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
1119 | # Fourth value (index==3) is -6.50198 cm |
---|
1120 | |
---|
1121 | from coordinate_transforms.redfearn import redfearn |
---|
1122 | import os |
---|
1123 | fid1 = NetCDFFile('test_ha.nc','w') |
---|
1124 | fid2 = NetCDFFile('test_ua.nc','w') |
---|
1125 | fid3 = NetCDFFile('test_va.nc','w') |
---|
1126 | fid4 = NetCDFFile('test_e.nc','w') |
---|
1127 | |
---|
1128 | h1_list = [150.66667,150.83334,151.] |
---|
1129 | h2_list = [-34.5,-34.33333] |
---|
1130 | |
---|
1131 | long_name = 'LON' |
---|
1132 | lat_name = 'LAT' |
---|
1133 | |
---|
1134 | nx = 3 |
---|
1135 | ny = 2 |
---|
1136 | |
---|
1137 | for fid in [fid1,fid2,fid3]: |
---|
1138 | fid.createDimension(long_name,nx) |
---|
1139 | fid.createVariable(long_name,'d',(long_name,)) |
---|
1140 | fid.variables[long_name].point_spacing='uneven' |
---|
1141 | fid.variables[long_name].units='degrees_east' |
---|
1142 | fid.variables[long_name].assignValue(h1_list) |
---|
1143 | |
---|
1144 | fid.createDimension(lat_name,ny) |
---|
1145 | fid.createVariable(lat_name,'d',(lat_name,)) |
---|
1146 | fid.variables[lat_name].point_spacing='uneven' |
---|
1147 | fid.variables[lat_name].units='degrees_north' |
---|
1148 | fid.variables[lat_name].assignValue(h2_list) |
---|
1149 | |
---|
1150 | fid.createDimension('TIME',2) |
---|
1151 | fid.createVariable('TIME','d',('TIME',)) |
---|
1152 | fid.variables['TIME'].point_spacing='uneven' |
---|
1153 | fid.variables['TIME'].units='seconds' |
---|
1154 | fid.variables['TIME'].assignValue([0.,1.]) |
---|
1155 | if fid == fid3: break |
---|
1156 | |
---|
1157 | |
---|
1158 | for fid in [fid4]: |
---|
1159 | fid.createDimension(long_name,nx) |
---|
1160 | fid.createVariable(long_name,'d',(long_name,)) |
---|
1161 | fid.variables[long_name].point_spacing='uneven' |
---|
1162 | fid.variables[long_name].units='degrees_east' |
---|
1163 | fid.variables[long_name].assignValue(h1_list) |
---|
1164 | |
---|
1165 | fid.createDimension(lat_name,ny) |
---|
1166 | fid.createVariable(lat_name,'d',(lat_name,)) |
---|
1167 | fid.variables[lat_name].point_spacing='uneven' |
---|
1168 | fid.variables[lat_name].units='degrees_north' |
---|
1169 | fid.variables[lat_name].assignValue(h2_list) |
---|
1170 | |
---|
1171 | name = {} |
---|
1172 | name[fid1]='HA' |
---|
1173 | name[fid2]='UA' |
---|
1174 | name[fid3]='VA' |
---|
1175 | name[fid4]='ELEVATION' |
---|
1176 | |
---|
1177 | units = {} |
---|
1178 | units[fid1]='cm' |
---|
1179 | units[fid2]='cm/s' |
---|
1180 | units[fid3]='cm/s' |
---|
1181 | units[fid4]='m' |
---|
1182 | |
---|
1183 | values = {} |
---|
1184 | values[fid1]=[[[5., 10.,15.], [13.,18.,23.]],[[50.,100.,150.],[130.,180.,230.]]] |
---|
1185 | values[fid2]=[[[1., 2.,3.], [4.,5.,6.]],[[7.,8.,9.],[10.,11.,12.]]] |
---|
1186 | values[fid3]=[[[13., 12.,11.], [10.,9.,8.]],[[7.,6.,5.],[4.,3.,2.]]] |
---|
1187 | values[fid4]=[[-3000,-3100,-3200],[-4000,-5000,-6000]] |
---|
1188 | |
---|
1189 | for fid in [fid1,fid2,fid3]: |
---|
1190 | fid.createVariable(name[fid],'d',('TIME',lat_name,long_name)) |
---|
1191 | fid.variables[name[fid]].point_spacing='uneven' |
---|
1192 | fid.variables[name[fid]].units=units[fid] |
---|
1193 | fid.variables[name[fid]].assignValue(values[fid]) |
---|
1194 | fid.variables[name[fid]].missing_value = -99999999. |
---|
1195 | if fid == fid3: break |
---|
1196 | |
---|
1197 | for fid in [fid4]: |
---|
1198 | fid.createVariable(name[fid],'d',(lat_name,long_name)) |
---|
1199 | fid.variables[name[fid]].point_spacing='uneven' |
---|
1200 | fid.variables[name[fid]].units=units[fid] |
---|
1201 | fid.variables[name[fid]].assignValue(values[fid]) |
---|
1202 | fid.variables[name[fid]].missing_value = -99999999. |
---|
1203 | |
---|
1204 | |
---|
1205 | fid1.sync(); fid1.close() |
---|
1206 | fid2.sync(); fid2.close() |
---|
1207 | fid3.sync(); fid3.close() |
---|
1208 | fid4.sync(); fid4.close() |
---|
1209 | |
---|
1210 | fid1 = NetCDFFile('test_ha.nc','r') |
---|
1211 | fid2 = NetCDFFile('test_e.nc','r') |
---|
1212 | fid3 = NetCDFFile('test_va.nc','r') |
---|
1213 | |
---|
1214 | |
---|
1215 | first_amp = fid1.variables['HA'][:][0,0,0] |
---|
1216 | third_amp = fid1.variables['HA'][:][0,0,2] |
---|
1217 | first_elevation = fid2.variables['ELEVATION'][0,0] |
---|
1218 | third_elevation= fid2.variables['ELEVATION'][:][0,2] |
---|
1219 | first_speed = fid3.variables['VA'][0,0,0] |
---|
1220 | third_speed = fid3.variables['VA'][:][0,0,2] |
---|
1221 | |
---|
1222 | fid1.close() |
---|
1223 | fid2.close() |
---|
1224 | fid3.close() |
---|
1225 | |
---|
1226 | #Call conversion (with zero origin) |
---|
1227 | ferret2sww('test', verbose=False, |
---|
1228 | origin = (56, 0, 0)) |
---|
1229 | |
---|
1230 | os.remove('test_va.nc') |
---|
1231 | os.remove('test_ua.nc') |
---|
1232 | os.remove('test_ha.nc') |
---|
1233 | os.remove('test_e.nc') |
---|
1234 | |
---|
1235 | #Read output file 'test.sww' |
---|
1236 | fid = NetCDFFile('test.sww') |
---|
1237 | |
---|
1238 | |
---|
1239 | #Check first value |
---|
1240 | elevation = fid.variables['elevation'][:] |
---|
1241 | stage = fid.variables['stage'][:] |
---|
1242 | xmomentum = fid.variables['xmomentum'][:] |
---|
1243 | ymomentum = fid.variables['ymomentum'][:] |
---|
1244 | |
---|
1245 | #print ymomentum |
---|
1246 | first_height = first_amp/100 - first_elevation |
---|
1247 | third_height = third_amp/100 - third_elevation |
---|
1248 | first_momentum=first_speed*first_height/100 |
---|
1249 | third_momentum=third_speed*third_height/100 |
---|
1250 | |
---|
1251 | assert allclose(ymomentum[0][0],first_momentum) #Meters |
---|
1252 | assert allclose(ymomentum[0][2],third_momentum) #Meters |
---|
1253 | |
---|
1254 | fid.close() |
---|
1255 | |
---|
1256 | #Cleanup |
---|
1257 | os.remove('test.sww') |
---|
1258 | |
---|
1259 | |
---|
1260 | |
---|
1261 | |
---|
1262 | def test_sww_extent(self): |
---|
1263 | """Not a test, rather a look at the sww format |
---|
1264 | """ |
---|
1265 | |
---|
1266 | import time, os |
---|
1267 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
1268 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1269 | |
---|
1270 | self.domain.filename = 'datatest' + str(id(self)) |
---|
1271 | self.domain.format = 'sww' |
---|
1272 | self.domain.smooth = True |
---|
1273 | self.domain.reduction = mean |
---|
1274 | self.domain.set_datadir('.') |
---|
1275 | |
---|
1276 | |
---|
1277 | sww = get_dataobject(self.domain) |
---|
1278 | sww.store_connectivity() |
---|
1279 | sww.store_timestep('stage') |
---|
1280 | self.domain.time = 2. |
---|
1281 | |
---|
1282 | #Modify stage at second timestep |
---|
1283 | stage = self.domain.quantities['stage'].vertex_values |
---|
1284 | self.domain.set_quantity('stage', stage/2) |
---|
1285 | |
---|
1286 | sww.store_timestep('stage') |
---|
1287 | |
---|
1288 | file_and_extension_name = self.domain.filename + ".sww" |
---|
1289 | #print "file_and_extension_name",file_and_extension_name |
---|
1290 | [xmin, xmax, ymin, ymax, stagemin, stagemax] = \ |
---|
1291 | extent_sww(file_and_extension_name ) |
---|
1292 | |
---|
1293 | assert allclose(xmin, 0.0) |
---|
1294 | assert allclose(xmax, 1.0) |
---|
1295 | assert allclose(ymin, 0.0) |
---|
1296 | assert allclose(ymax, 1.0) |
---|
1297 | assert allclose(stagemin, -0.85) |
---|
1298 | assert allclose(stagemax, 0.15) |
---|
1299 | |
---|
1300 | |
---|
1301 | #Cleanup |
---|
1302 | os.remove(sww.filename) |
---|
1303 | |
---|
1304 | |
---|
1305 | def test_ferret2sww_nz_origin(self): |
---|
1306 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1307 | from coordinate_transforms.redfearn import redfearn |
---|
1308 | |
---|
1309 | #Call conversion (with nonzero origin) |
---|
1310 | ferret2sww('small', verbose=False, |
---|
1311 | origin = (56, 100000, 200000)) |
---|
1312 | |
---|
1313 | |
---|
1314 | #Work out the UTM coordinates for first point |
---|
1315 | zone, e, n = redfearn(-34.5, 150.66667) |
---|
1316 | |
---|
1317 | #Read output file 'small.sww' |
---|
1318 | fid = NetCDFFile('small.sww', 'r') |
---|
1319 | |
---|
1320 | x = fid.variables['x'][:] |
---|
1321 | y = fid.variables['y'][:] |
---|
1322 | |
---|
1323 | #Check that first coordinate is correctly represented |
---|
1324 | assert allclose(x[0], e-100000) |
---|
1325 | assert allclose(y[0], n-200000) |
---|
1326 | |
---|
1327 | fid.close() |
---|
1328 | |
---|
1329 | #Cleanup |
---|
1330 | import os |
---|
1331 | os.remove('small.sww') |
---|
1332 | |
---|
1333 | def test_sww2domain(self): |
---|
1334 | ################################################ |
---|
1335 | #Create a test domain, and evolve and save it. |
---|
1336 | ################################################ |
---|
1337 | from mesh_factory import rectangular |
---|
1338 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
1339 | Constant_height, Time_boundary, Transmissive_boundary |
---|
1340 | from Numeric import array |
---|
1341 | |
---|
1342 | #Create basic mesh |
---|
1343 | points, vertices, boundary = rectangular(2,2) |
---|
1344 | |
---|
1345 | #Create shallow water domain |
---|
1346 | domain = Domain(points, vertices, boundary) |
---|
1347 | domain.smooth = False |
---|
1348 | domain.visualise = False |
---|
1349 | domain.store = True |
---|
1350 | domain.filename = 'bedslope' |
---|
1351 | domain.default_order=2 |
---|
1352 | #Bed-slope and friction |
---|
1353 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
1354 | domain.set_quantity('friction', 0.1) |
---|
1355 | # Boundary conditions |
---|
1356 | from math import sin, pi |
---|
1357 | Br = Reflective_boundary(domain) |
---|
1358 | Bt = Transmissive_boundary(domain) |
---|
1359 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
1360 | Bw = Time_boundary(domain=domain, |
---|
1361 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
1362 | |
---|
1363 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1364 | domain.quantities_to_be_stored.extend(['xmomentum','ymomentum']) |
---|
1365 | #Initial condition |
---|
1366 | h = 0.05 |
---|
1367 | elevation = domain.quantities['elevation'].vertex_values |
---|
1368 | domain.set_quantity('stage', elevation + h) |
---|
1369 | #elevation = domain.get_quantity('elevation',location='unique vertices') |
---|
1370 | #domain.set_quantity('stage', elevation + h,location='unique vertices') |
---|
1371 | |
---|
1372 | domain.check_integrity() |
---|
1373 | dir(domain) |
---|
1374 | #Evolution |
---|
1375 | for t in domain.evolve(yieldstep = 1, finaltime = 2.0): |
---|
1376 | # domain.write_time() |
---|
1377 | pass |
---|
1378 | |
---|
1379 | |
---|
1380 | ########################################## |
---|
1381 | #Import the example's file as a new domain |
---|
1382 | ########################################## |
---|
1383 | from data_manager import sww2domain |
---|
1384 | from Numeric import allclose |
---|
1385 | |
---|
1386 | filename = domain.datadir+'\\'+domain.filename+'.sww' |
---|
1387 | |
---|
1388 | domain2 = sww2domain(filename,fail_if_NaN=False,verbose = False) |
---|
1389 | |
---|
1390 | ################### |
---|
1391 | ##NOW TEST IT!!! |
---|
1392 | ################## |
---|
1393 | |
---|
1394 | bits = ['xllcorner','yllcorner','vertex_coordinates','time','starttime'] |
---|
1395 | |
---|
1396 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
1397 | bits.append('get_quantity("%s")'%quantity) |
---|
1398 | |
---|
1399 | for bit in bits: |
---|
1400 | # print 'testing that domain.'+bit+' has been restored' |
---|
1401 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
1402 | |
---|
1403 | #print 'passed' |
---|
1404 | |
---|
1405 | |
---|
1406 | def test_sww2domain2(self): |
---|
1407 | ################################################################## |
---|
1408 | #Same as previous test, but this checks how NaNs are handled. |
---|
1409 | ################################################################## |
---|
1410 | |
---|
1411 | |
---|
1412 | from mesh_factory import rectangular |
---|
1413 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
1414 | Constant_height, Time_boundary, Transmissive_boundary |
---|
1415 | from Numeric import array |
---|
1416 | |
---|
1417 | #Create basic mesh |
---|
1418 | points, vertices, boundary = rectangular(2,2) |
---|
1419 | |
---|
1420 | #Create shallow water domain |
---|
1421 | domain = Domain(points, vertices, boundary) |
---|
1422 | domain.smooth = False |
---|
1423 | domain.visualise = False |
---|
1424 | domain.store = True |
---|
1425 | domain.filename = 'bedslope' |
---|
1426 | domain.default_order=2 |
---|
1427 | domain.quantities_to_be_stored=['stage'] |
---|
1428 | |
---|
1429 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
1430 | domain.set_quantity('friction', 0.1) |
---|
1431 | |
---|
1432 | from math import sin, pi |
---|
1433 | Br = Reflective_boundary(domain) |
---|
1434 | Bt = Transmissive_boundary(domain) |
---|
1435 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
1436 | Bw = Time_boundary(domain=domain, |
---|
1437 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
1438 | |
---|
1439 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1440 | |
---|
1441 | h = 0.05 |
---|
1442 | elevation = domain.quantities['elevation'].vertex_values |
---|
1443 | domain.set_quantity('stage', elevation + h) |
---|
1444 | #elevation = domain.get_quantity('elevation',location='unique vertices') |
---|
1445 | #domain.set_quantity('stage', elevation + h,location='unique vertices') |
---|
1446 | |
---|
1447 | domain.check_integrity() |
---|
1448 | |
---|
1449 | for t in domain.evolve(yieldstep = 1, finaltime = 2.0): |
---|
1450 | pass |
---|
1451 | #domain.write_time() |
---|
1452 | |
---|
1453 | ################################## |
---|
1454 | #Import the file as a new domain |
---|
1455 | ################################## |
---|
1456 | from data_manager import sww2domain |
---|
1457 | from Numeric import allclose |
---|
1458 | |
---|
1459 | filename = domain.datadir+'\\'+domain.filename+'.sww' |
---|
1460 | |
---|
1461 | #Fail because NaNs are present |
---|
1462 | try: |
---|
1463 | domain2 = sww2domain(filename,fail_if_NaN=True,verbose=False) |
---|
1464 | assert True == False |
---|
1465 | except: |
---|
1466 | #Now import it, filling NaNs to be 0 |
---|
1467 | filler = 0 |
---|
1468 | domain2 = sww2domain(filename,fail_if_NaN=False,NaN_filler = filler,verbose=False) |
---|
1469 | |
---|
1470 | bits = ['xllcorner','yllcorner','vertex_coordinates','time','starttime'] |
---|
1471 | |
---|
1472 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
1473 | bits.append('get_quantity("%s")'%quantity) |
---|
1474 | |
---|
1475 | for bit in bits: |
---|
1476 | # print 'testing that domain.'+bit+' has been restored' |
---|
1477 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
1478 | |
---|
1479 | #print max(max(domain2.get_quantity('xmomentum'))) |
---|
1480 | #print min(min(domain2.get_quantity('xmomentum'))) |
---|
1481 | #print max(max(domain2.get_quantity('ymomentum'))) |
---|
1482 | #print min(min(domain2.get_quantity('ymomentum'))) |
---|
1483 | |
---|
1484 | assert max(max(domain2.get_quantity('xmomentum')))==filler |
---|
1485 | assert min(min(domain2.get_quantity('xmomentum')))==filler |
---|
1486 | assert max(max(domain2.get_quantity('ymomentum')))==filler |
---|
1487 | assert min(min(domain2.get_quantity('ymomentum')))==filler |
---|
1488 | |
---|
1489 | #print 'passed' |
---|
1490 | |
---|
1491 | #cleanup |
---|
1492 | #import os |
---|
1493 | #os.remove(domain.datadir+'/'+domain.filename+'.sww') |
---|
1494 | |
---|
1495 | #------------------------------------------------------------- |
---|
1496 | if __name__ == "__main__": |
---|
1497 | suite = unittest.makeSuite(Test_Data_Manager,'test') |
---|
1498 | #suite = unittest.makeSuite(Test_Data_Manager,'test_sww2asc_mis') |
---|
1499 | runner = unittest.TextTestRunner() |
---|
1500 | runner.run(suite) |
---|