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 | from coordinate_transforms.geo_reference import Geo_reference |
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14 | |
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15 | class Test_Data_Manager(unittest.TestCase): |
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16 | def setUp(self): |
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17 | import time |
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18 | from mesh_factory import rectangular |
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19 | |
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20 | #Create basic mesh |
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21 | points, vertices, boundary = rectangular(2, 2) |
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22 | |
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23 | #Create shallow water domain |
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24 | domain = Domain(points, vertices, boundary) |
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25 | domain.default_order=2 |
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26 | |
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27 | |
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28 | #Set some field values |
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29 | domain.set_quantity('elevation', lambda x,y: -x) |
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30 | domain.set_quantity('friction', 0.03) |
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31 | |
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32 | |
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33 | ###################### |
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34 | # Boundary conditions |
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35 | B = Transmissive_boundary(domain) |
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36 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
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37 | |
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38 | |
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39 | ###################### |
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40 | #Initial condition - with jumps |
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41 | |
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42 | |
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43 | bed = domain.quantities['elevation'].vertex_values |
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44 | stage = zeros(bed.shape, Float) |
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45 | |
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46 | h = 0.3 |
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47 | for i in range(stage.shape[0]): |
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48 | if i % 2 == 0: |
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49 | stage[i,:] = bed[i,:] + h |
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50 | else: |
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51 | stage[i,:] = bed[i,:] |
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52 | |
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53 | domain.set_quantity('stage', stage) |
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54 | self.initial_stage = copy.copy(domain.quantities['stage'].vertex_values) |
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55 | |
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56 | domain.distribute_to_vertices_and_edges() |
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57 | |
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58 | |
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59 | self.domain = domain |
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60 | |
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61 | C = domain.get_vertex_coordinates() |
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62 | self.X = C[:,0:6:2].copy() |
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63 | self.Y = C[:,1:6:2].copy() |
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64 | |
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65 | self.F = bed |
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66 | |
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67 | |
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68 | def tearDown(self): |
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69 | pass |
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70 | |
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71 | |
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72 | |
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73 | |
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74 | # def test_xya(self): |
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75 | # import os |
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76 | # from Numeric import concatenate |
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77 | |
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78 | # import time, os |
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79 | # from Numeric import array, zeros, allclose, Float, concatenate |
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80 | |
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81 | # domain = self.domain |
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82 | |
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83 | # domain.filename = 'datatest' + str(time.time()) |
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84 | # domain.format = 'xya' |
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85 | # domain.smooth = True |
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86 | |
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87 | # xya = get_dataobject(self.domain) |
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88 | # xya.store_all() |
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89 | |
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90 | |
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91 | # #Read back |
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92 | # file = open(xya.filename) |
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93 | # lFile = file.read().split('\n') |
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94 | # lFile = lFile[:-1] |
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95 | |
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96 | # file.close() |
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97 | # os.remove(xya.filename) |
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98 | |
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99 | # #Check contents |
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100 | # if domain.smooth: |
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101 | # self.failUnless(lFile[0] == '9 3 # <vertex #> <x> <y> [attributes]') |
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102 | # else: |
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103 | # self.failUnless(lFile[0] == '24 3 # <vertex #> <x> <y> [attributes]') |
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104 | |
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105 | # #Get smoothed field values with X and Y |
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106 | # X,Y,F,V = domain.get_vertex_values(xy=True, value_array='field_values', |
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107 | # indices = (0,1), precision = Float) |
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108 | |
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109 | |
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110 | # Q,V = domain.get_vertex_values(xy=False, value_array='conserved_quantities', |
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111 | # indices = (0,), precision = Float) |
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112 | |
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113 | |
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114 | |
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115 | # for i, line in enumerate(lFile[1:]): |
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116 | # fields = line.split() |
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117 | |
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118 | # assert len(fields) == 5 |
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119 | |
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120 | # assert allclose(float(fields[0]), X[i]) |
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121 | # assert allclose(float(fields[1]), Y[i]) |
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122 | # assert allclose(float(fields[2]), F[i,0]) |
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123 | # assert allclose(float(fields[3]), Q[i,0]) |
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124 | # assert allclose(float(fields[4]), F[i,1]) |
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125 | |
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126 | |
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127 | |
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128 | |
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129 | def test_sww_constant(self): |
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130 | """Test that constant sww information can be written correctly |
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131 | (non smooth) |
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132 | """ |
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133 | |
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134 | import time, os |
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135 | from Numeric import array, zeros, allclose, Float, concatenate |
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136 | from Scientific.IO.NetCDF import NetCDFFile |
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137 | |
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138 | self.domain.filename = 'datatest' + str(id(self)) |
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139 | self.domain.format = 'sww' |
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140 | self.domain.smooth = False |
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141 | |
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142 | sww = get_dataobject(self.domain) |
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143 | sww.store_connectivity() |
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144 | |
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145 | #Check contents |
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146 | #Get NetCDF |
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147 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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148 | |
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149 | # Get the variables |
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150 | x = fid.variables['x'] |
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151 | y = fid.variables['y'] |
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152 | z = fid.variables['elevation'] |
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153 | |
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154 | volumes = fid.variables['volumes'] |
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155 | |
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156 | |
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157 | assert allclose (x[:], self.X.flat) |
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158 | assert allclose (y[:], self.Y.flat) |
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159 | assert allclose (z[:], self.F.flat) |
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160 | |
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161 | V = volumes |
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162 | |
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163 | P = len(self.domain) |
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164 | for k in range(P): |
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165 | assert V[k, 0] == 3*k |
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166 | assert V[k, 1] == 3*k+1 |
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167 | assert V[k, 2] == 3*k+2 |
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168 | |
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169 | |
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170 | fid.close() |
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171 | |
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172 | #Cleanup |
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173 | os.remove(sww.filename) |
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174 | |
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175 | |
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176 | def test_sww_constant_smooth(self): |
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177 | """Test that constant sww information can be written correctly |
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178 | (non smooth) |
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179 | """ |
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180 | |
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181 | import time, os |
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182 | from Numeric import array, zeros, allclose, Float, concatenate |
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183 | from Scientific.IO.NetCDF import NetCDFFile |
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184 | |
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185 | self.domain.filename = 'datatest' + str(id(self)) |
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186 | self.domain.format = 'sww' |
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187 | self.domain.smooth = True |
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188 | |
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189 | sww = get_dataobject(self.domain) |
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190 | sww.store_connectivity() |
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191 | |
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192 | #Check contents |
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193 | #Get NetCDF |
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194 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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195 | |
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196 | # Get the variables |
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197 | x = fid.variables['x'] |
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198 | y = fid.variables['y'] |
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199 | z = fid.variables['elevation'] |
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200 | |
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201 | volumes = fid.variables['volumes'] |
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202 | |
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203 | X = x[:] |
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204 | Y = y[:] |
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205 | |
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206 | assert allclose([X[0], Y[0]], array([0.0, 0.0])) |
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207 | assert allclose([X[1], Y[1]], array([0.0, 0.5])) |
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208 | assert allclose([X[2], Y[2]], array([0.0, 1.0])) |
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209 | |
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210 | assert allclose([X[4], Y[4]], array([0.5, 0.5])) |
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211 | |
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212 | assert allclose([X[7], Y[7]], array([1.0, 0.5])) |
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213 | |
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214 | Z = z[:] |
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215 | assert Z[4] == -0.5 |
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216 | |
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217 | V = volumes |
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218 | assert V[2,0] == 4 |
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219 | assert V[2,1] == 5 |
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220 | assert V[2,2] == 1 |
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221 | |
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222 | assert V[4,0] == 6 |
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223 | assert V[4,1] == 7 |
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224 | assert V[4,2] == 3 |
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225 | |
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226 | |
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227 | fid.close() |
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228 | |
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229 | #Cleanup |
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230 | os.remove(sww.filename) |
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231 | |
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232 | |
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233 | |
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234 | def test_sww_variable(self): |
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235 | """Test that sww information can be written correctly |
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236 | """ |
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237 | |
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238 | import time, os |
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239 | from Numeric import array, zeros, allclose, Float, concatenate |
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240 | from Scientific.IO.NetCDF import NetCDFFile |
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241 | |
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242 | self.domain.filename = 'datatest' + str(id(self)) |
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243 | self.domain.format = 'sww' |
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244 | self.domain.smooth = True |
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245 | self.domain.reduction = mean |
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246 | |
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247 | sww = get_dataobject(self.domain) |
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248 | sww.store_connectivity() |
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249 | sww.store_timestep('stage') |
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250 | |
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251 | #Check contents |
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252 | #Get NetCDF |
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253 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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254 | |
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255 | |
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256 | # Get the variables |
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257 | x = fid.variables['x'] |
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258 | y = fid.variables['y'] |
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259 | z = fid.variables['elevation'] |
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260 | time = fid.variables['time'] |
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261 | stage = fid.variables['stage'] |
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262 | |
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263 | |
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264 | Q = self.domain.quantities['stage'] |
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265 | Q0 = Q.vertex_values[:,0] |
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266 | Q1 = Q.vertex_values[:,1] |
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267 | Q2 = Q.vertex_values[:,2] |
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268 | |
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269 | A = stage[0,:] |
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270 | #print A[0], (Q2[0,0] + Q1[1,0])/2 |
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271 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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272 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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273 | assert allclose(A[2], Q0[3]) |
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274 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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275 | |
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276 | #Center point |
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277 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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278 | Q0[5] + Q2[6] + Q1[7])/6) |
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279 | |
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280 | |
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281 | |
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282 | fid.close() |
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283 | |
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284 | #Cleanup |
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285 | os.remove(sww.filename) |
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286 | |
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287 | |
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288 | def test_sww_variable2(self): |
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289 | """Test that sww information can be written correctly |
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290 | multiple timesteps. Use average as reduction operator |
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291 | """ |
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292 | |
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293 | import time, os |
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294 | from Numeric import array, zeros, allclose, Float, concatenate |
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295 | from Scientific.IO.NetCDF import NetCDFFile |
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296 | |
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297 | self.domain.filename = 'datatest' + str(id(self)) |
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298 | self.domain.format = 'sww' |
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299 | self.domain.smooth = True |
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300 | |
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301 | self.domain.reduction = mean |
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302 | |
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303 | sww = get_dataobject(self.domain) |
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304 | sww.store_connectivity() |
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305 | sww.store_timestep('stage') |
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306 | self.domain.evolve_to_end(finaltime = 0.01) |
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307 | sww.store_timestep('stage') |
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308 | |
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309 | |
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310 | #Check contents |
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311 | #Get NetCDF |
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312 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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313 | |
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314 | # Get the variables |
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315 | x = fid.variables['x'] |
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316 | y = fid.variables['y'] |
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317 | z = fid.variables['elevation'] |
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318 | time = fid.variables['time'] |
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319 | stage = fid.variables['stage'] |
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320 | |
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321 | #Check values |
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322 | Q = self.domain.quantities['stage'] |
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323 | Q0 = Q.vertex_values[:,0] |
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324 | Q1 = Q.vertex_values[:,1] |
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325 | Q2 = Q.vertex_values[:,2] |
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326 | |
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327 | A = stage[1,:] |
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328 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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329 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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330 | assert allclose(A[2], Q0[3]) |
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331 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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332 | |
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333 | #Center point |
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334 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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335 | Q0[5] + Q2[6] + Q1[7])/6) |
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336 | |
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337 | |
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338 | fid.close() |
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339 | |
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340 | #Cleanup |
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341 | os.remove(sww.filename) |
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342 | |
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343 | def test_sww_variable3(self): |
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344 | """Test that sww information can be written correctly |
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345 | multiple timesteps using a different reduction operator (min) |
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346 | """ |
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347 | |
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348 | import time, os |
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349 | from Numeric import array, zeros, allclose, Float, concatenate |
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350 | from Scientific.IO.NetCDF import NetCDFFile |
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351 | |
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352 | self.domain.filename = 'datatest' + str(id(self)) |
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353 | self.domain.format = 'sww' |
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354 | self.domain.smooth = True |
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355 | self.domain.reduction = min |
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356 | |
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357 | sww = get_dataobject(self.domain) |
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358 | sww.store_connectivity() |
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359 | sww.store_timestep('stage') |
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360 | |
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361 | self.domain.evolve_to_end(finaltime = 0.01) |
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362 | sww.store_timestep('stage') |
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363 | |
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364 | |
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365 | #Check contents |
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366 | #Get NetCDF |
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367 | fid = NetCDFFile(sww.filename, 'r') |
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368 | |
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369 | |
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370 | # Get the variables |
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371 | x = fid.variables['x'] |
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372 | y = fid.variables['y'] |
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373 | z = fid.variables['elevation'] |
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374 | time = fid.variables['time'] |
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375 | stage = fid.variables['stage'] |
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376 | |
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377 | #Check values |
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378 | Q = self.domain.quantities['stage'] |
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379 | Q0 = Q.vertex_values[:,0] |
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380 | Q1 = Q.vertex_values[:,1] |
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381 | Q2 = Q.vertex_values[:,2] |
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382 | |
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383 | A = stage[1,:] |
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384 | assert allclose(A[0], min(Q2[0], Q1[1])) |
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385 | assert allclose(A[1], min(Q0[1], Q1[3], Q2[2])) |
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386 | assert allclose(A[2], Q0[3]) |
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387 | assert allclose(A[3], min(Q0[0], Q1[5], Q2[4])) |
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388 | |
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389 | #Center point |
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390 | assert allclose(A[4], min(Q1[0], Q2[1], Q0[2],\ |
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391 | Q0[5], Q2[6], Q1[7])) |
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392 | |
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393 | |
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394 | fid.close() |
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395 | |
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396 | #Cleanup |
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397 | os.remove(sww.filename) |
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398 | |
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399 | |
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400 | def test_sync(self): |
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401 | """Test info stored at each timestep is as expected (incl initial condition) |
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402 | """ |
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403 | |
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404 | import time, os, config |
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405 | from Numeric import array, zeros, allclose, Float, concatenate |
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406 | from Scientific.IO.NetCDF import NetCDFFile |
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407 | |
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408 | self.domain.filename = 'synctest' |
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409 | self.domain.format = 'sww' |
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410 | self.domain.smooth = False |
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411 | self.domain.store = True |
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412 | self.domain.beta_h = 0 |
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413 | |
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414 | #Evolution |
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415 | for t in self.domain.evolve(yieldstep = 1.0, finaltime = 4.0): |
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416 | stage = self.domain.quantities['stage'].vertex_values |
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417 | |
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418 | #Get NetCDF |
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419 | fid = NetCDFFile(self.domain.writer.filename, 'r') |
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420 | stage_file = fid.variables['stage'] |
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421 | |
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422 | if t == 0.0: |
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423 | assert allclose(stage, self.initial_stage) |
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424 | assert allclose(stage_file[:], stage.flat) |
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425 | else: |
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426 | assert not allclose(stage, self.initial_stage) |
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427 | assert not allclose(stage_file[:], stage.flat) |
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428 | |
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429 | fid.close() |
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430 | |
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431 | os.remove(self.domain.writer.filename) |
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432 | |
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433 | |
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434 | |
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435 | def test_sww_DSG(self): |
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436 | """Not a test, rather a look at the sww format |
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437 | """ |
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438 | |
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439 | import time, os |
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440 | from Numeric import array, zeros, allclose, Float, concatenate |
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441 | from Scientific.IO.NetCDF import NetCDFFile |
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442 | |
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443 | self.domain.filename = 'datatest' + str(id(self)) |
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444 | self.domain.format = 'sww' |
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445 | self.domain.smooth = True |
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446 | self.domain.reduction = mean |
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447 | |
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448 | sww = get_dataobject(self.domain) |
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449 | sww.store_connectivity() |
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450 | sww.store_timestep('stage') |
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451 | |
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452 | #Check contents |
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453 | #Get NetCDF |
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454 | fid = NetCDFFile(sww.filename, 'r') |
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455 | |
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456 | # Get the variables |
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457 | x = fid.variables['x'] |
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458 | y = fid.variables['y'] |
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459 | z = fid.variables['elevation'] |
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460 | |
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461 | volumes = fid.variables['volumes'] |
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462 | time = fid.variables['time'] |
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463 | |
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464 | # 2D |
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465 | stage = fid.variables['stage'] |
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466 | |
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467 | X = x[:] |
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468 | Y = y[:] |
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469 | Z = z[:] |
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470 | V = volumes[:] |
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471 | T = time[:] |
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472 | S = stage[:,:] |
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473 | |
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474 | # print "****************************" |
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475 | # print "X ",X |
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476 | # print "****************************" |
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477 | # print "Y ",Y |
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478 | # print "****************************" |
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479 | # print "Z ",Z |
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480 | # print "****************************" |
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481 | # print "V ",V |
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482 | # print "****************************" |
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483 | # print "Time ",T |
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484 | # print "****************************" |
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485 | # print "Stage ",S |
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486 | # print "****************************" |
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487 | |
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488 | |
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489 | fid.close() |
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490 | |
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491 | #Cleanup |
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492 | os.remove(sww.filename) |
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493 | |
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494 | |
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495 | def test_write_pts(self): |
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496 | #Get (enough) datapoints |
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497 | |
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498 | from Numeric import array |
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499 | points = array([[ 0.66666667, 0.66666667], |
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500 | [ 1.33333333, 1.33333333], |
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501 | [ 2.66666667, 0.66666667], |
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502 | [ 0.66666667, 2.66666667], |
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503 | [ 0.0, 1.0], |
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504 | [ 0.0, 3.0], |
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505 | [ 1.0, 0.0], |
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506 | [ 1.0, 1.0], |
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507 | [ 1.0, 2.0], |
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508 | [ 1.0, 3.0], |
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509 | [ 2.0, 1.0], |
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510 | [ 3.0, 0.0], |
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511 | [ 3.0, 1.0]]) |
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512 | |
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513 | z = points[:,0] + 2*points[:,1] |
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514 | |
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515 | ptsfile = 'testptsfile.pts' |
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516 | write_ptsfile(ptsfile, points, z, |
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517 | attribute_name = 'linear_combination') |
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518 | |
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519 | #Check contents |
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520 | #Get NetCDF |
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521 | from Scientific.IO.NetCDF import NetCDFFile |
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522 | fid = NetCDFFile(ptsfile, 'r') |
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523 | |
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524 | # Get the variables |
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525 | #print fid.variables.keys() |
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526 | points1 = fid.variables['points'] |
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527 | z1 = fid.variables['linear_combination'] |
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528 | |
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529 | #Check values |
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530 | |
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531 | #print points[:] |
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532 | #print ref_points |
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533 | assert allclose(points, points1) |
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534 | |
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535 | #print attributes[:] |
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536 | #print ref_elevation |
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537 | assert allclose(z, z1) |
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538 | |
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539 | #Cleanup |
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540 | fid.close() |
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541 | |
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542 | import os |
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543 | os.remove(ptsfile) |
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544 | |
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545 | |
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546 | |
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547 | |
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548 | def test_dem2pts(self): |
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549 | """Test conversion from dem in ascii format to native NetCDF xya format |
---|
550 | """ |
---|
551 | |
---|
552 | import time, os |
---|
553 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
554 | from Scientific.IO.NetCDF import NetCDFFile |
---|
555 | |
---|
556 | #Write test asc file |
---|
557 | root = 'demtest' |
---|
558 | |
---|
559 | filename = root+'.asc' |
---|
560 | fid = open(filename, 'w') |
---|
561 | fid.write("""ncols 5 |
---|
562 | nrows 6 |
---|
563 | xllcorner 2000.5 |
---|
564 | yllcorner 3000.5 |
---|
565 | cellsize 25 |
---|
566 | NODATA_value -9999 |
---|
567 | """) |
---|
568 | #Create linear function |
---|
569 | |
---|
570 | ref_points = [] |
---|
571 | ref_elevation = [] |
---|
572 | for i in range(6): |
---|
573 | y = (6-i)*25.0 |
---|
574 | for j in range(5): |
---|
575 | x = j*25.0 |
---|
576 | z = x+2*y |
---|
577 | |
---|
578 | ref_points.append( [x,y] ) |
---|
579 | ref_elevation.append(z) |
---|
580 | fid.write('%f ' %z) |
---|
581 | fid.write('\n') |
---|
582 | |
---|
583 | fid.close() |
---|
584 | |
---|
585 | #Write prj file with metadata |
---|
586 | metafilename = root+'.prj' |
---|
587 | fid = open(metafilename, 'w') |
---|
588 | |
---|
589 | |
---|
590 | fid.write("""Projection UTM |
---|
591 | Zone 56 |
---|
592 | Datum WGS84 |
---|
593 | Zunits NO |
---|
594 | Units METERS |
---|
595 | Spheroid WGS84 |
---|
596 | Xshift 0.0000000000 |
---|
597 | Yshift 10000000.0000000000 |
---|
598 | Parameters |
---|
599 | """) |
---|
600 | fid.close() |
---|
601 | |
---|
602 | #Convert to NetCDF pts |
---|
603 | convert_dem_from_ascii2netcdf(root) |
---|
604 | dem2pts(root) |
---|
605 | |
---|
606 | #Check contents |
---|
607 | #Get NetCDF |
---|
608 | fid = NetCDFFile(root+'.pts', 'r') |
---|
609 | |
---|
610 | # Get the variables |
---|
611 | #print fid.variables.keys() |
---|
612 | points = fid.variables['points'] |
---|
613 | elevation = fid.variables['elevation'] |
---|
614 | |
---|
615 | #Check values |
---|
616 | |
---|
617 | #print points[:] |
---|
618 | #print ref_points |
---|
619 | assert allclose(points, ref_points) |
---|
620 | |
---|
621 | #print attributes[:] |
---|
622 | #print ref_elevation |
---|
623 | assert allclose(elevation, ref_elevation) |
---|
624 | |
---|
625 | #Cleanup |
---|
626 | fid.close() |
---|
627 | |
---|
628 | |
---|
629 | os.remove(root + '.pts') |
---|
630 | os.remove(root + '.dem') |
---|
631 | os.remove(root + '.asc') |
---|
632 | os.remove(root + '.prj') |
---|
633 | |
---|
634 | |
---|
635 | |
---|
636 | def test_dem2pts_bounding_box(self): |
---|
637 | """Test conversion from dem in ascii format to native NetCDF xya format |
---|
638 | """ |
---|
639 | |
---|
640 | import time, os |
---|
641 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
642 | from Scientific.IO.NetCDF import NetCDFFile |
---|
643 | |
---|
644 | #Write test asc file |
---|
645 | root = 'demtest' |
---|
646 | |
---|
647 | filename = root+'.asc' |
---|
648 | fid = open(filename, 'w') |
---|
649 | fid.write("""ncols 5 |
---|
650 | nrows 6 |
---|
651 | xllcorner 2000.5 |
---|
652 | yllcorner 3000.5 |
---|
653 | cellsize 25 |
---|
654 | NODATA_value -9999 |
---|
655 | """) |
---|
656 | #Create linear function |
---|
657 | |
---|
658 | ref_points = [] |
---|
659 | ref_elevation = [] |
---|
660 | for i in range(6): |
---|
661 | y = (6-i)*25.0 |
---|
662 | for j in range(5): |
---|
663 | x = j*25.0 |
---|
664 | z = x+2*y |
---|
665 | |
---|
666 | ref_points.append( [x,y] ) |
---|
667 | ref_elevation.append(z) |
---|
668 | fid.write('%f ' %z) |
---|
669 | fid.write('\n') |
---|
670 | |
---|
671 | fid.close() |
---|
672 | |
---|
673 | #Write prj file with metadata |
---|
674 | metafilename = root+'.prj' |
---|
675 | fid = open(metafilename, 'w') |
---|
676 | |
---|
677 | |
---|
678 | fid.write("""Projection UTM |
---|
679 | Zone 56 |
---|
680 | Datum WGS84 |
---|
681 | Zunits NO |
---|
682 | Units METERS |
---|
683 | Spheroid WGS84 |
---|
684 | Xshift 0.0000000000 |
---|
685 | Yshift 10000000.0000000000 |
---|
686 | Parameters |
---|
687 | """) |
---|
688 | fid.close() |
---|
689 | |
---|
690 | #Convert to NetCDF pts |
---|
691 | convert_dem_from_ascii2netcdf(root) |
---|
692 | dem2pts(root, easting_min=2010.0, easting_max=2110.0, |
---|
693 | northing_min=3035.0, northing_max=3125.5) |
---|
694 | |
---|
695 | #Check contents |
---|
696 | #Get NetCDF |
---|
697 | fid = NetCDFFile(root+'.pts', 'r') |
---|
698 | |
---|
699 | # Get the variables |
---|
700 | #print fid.variables.keys() |
---|
701 | points = fid.variables['points'] |
---|
702 | elevation = fid.variables['elevation'] |
---|
703 | |
---|
704 | #Check values |
---|
705 | assert fid.xllcorner[0] == 2010.0 |
---|
706 | assert fid.yllcorner[0] == 3035.0 |
---|
707 | |
---|
708 | #create new reference points |
---|
709 | ref_points = [] |
---|
710 | ref_elevation = [] |
---|
711 | for i in range(4): |
---|
712 | y = (4-i)*25.0 + 25.0 |
---|
713 | y_new = y + 3000.5 - 3035.0 |
---|
714 | for j in range(4): |
---|
715 | x = j*25.0 + 25.0 |
---|
716 | x_new = x + 2000.5 - 2010.0 |
---|
717 | z = x+2*y |
---|
718 | |
---|
719 | ref_points.append( [x_new,y_new] ) |
---|
720 | ref_elevation.append(z) |
---|
721 | |
---|
722 | #print points[:] |
---|
723 | #print ref_points |
---|
724 | assert allclose(points, ref_points) |
---|
725 | |
---|
726 | #print attributes[:] |
---|
727 | #print ref_elevation |
---|
728 | assert allclose(elevation, ref_elevation) |
---|
729 | |
---|
730 | #Cleanup |
---|
731 | fid.close() |
---|
732 | |
---|
733 | |
---|
734 | os.remove(root + '.pts') |
---|
735 | os.remove(root + '.dem') |
---|
736 | os.remove(root + '.asc') |
---|
737 | os.remove(root + '.prj') |
---|
738 | |
---|
739 | |
---|
740 | |
---|
741 | def test_sww2dem_asc_elevation(self): |
---|
742 | """Test that sww information can be converted correctly to asc/prj |
---|
743 | format readable by e.g. ArcView |
---|
744 | """ |
---|
745 | |
---|
746 | import time, os |
---|
747 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
748 | from Scientific.IO.NetCDF import NetCDFFile |
---|
749 | |
---|
750 | #Setup |
---|
751 | self.domain.filename = 'datatest' |
---|
752 | |
---|
753 | prjfile = self.domain.filename + '_elevation.prj' |
---|
754 | ascfile = self.domain.filename + '_elevation.asc' |
---|
755 | swwfile = self.domain.filename + '.sww' |
---|
756 | |
---|
757 | self.domain.set_datadir('.') |
---|
758 | self.domain.format = 'sww' |
---|
759 | self.domain.smooth = True |
---|
760 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
761 | |
---|
762 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
763 | |
---|
764 | sww = get_dataobject(self.domain) |
---|
765 | sww.store_connectivity() |
---|
766 | sww.store_timestep('stage') |
---|
767 | |
---|
768 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
769 | sww.store_timestep('stage') |
---|
770 | |
---|
771 | cellsize = 0.25 |
---|
772 | #Check contents |
---|
773 | #Get NetCDF |
---|
774 | |
---|
775 | fid = NetCDFFile(sww.filename, 'r') |
---|
776 | |
---|
777 | # Get the variables |
---|
778 | x = fid.variables['x'][:] |
---|
779 | y = fid.variables['y'][:] |
---|
780 | z = fid.variables['elevation'][:] |
---|
781 | time = fid.variables['time'][:] |
---|
782 | stage = fid.variables['stage'][:] |
---|
783 | |
---|
784 | |
---|
785 | #Export to ascii/prj files |
---|
786 | sww2dem(self.domain.filename, |
---|
787 | quantity = 'elevation', |
---|
788 | cellsize = cellsize, |
---|
789 | verbose = False, |
---|
790 | format = 'asc') |
---|
791 | |
---|
792 | #Check prj (meta data) |
---|
793 | prjid = open(prjfile) |
---|
794 | lines = prjid.readlines() |
---|
795 | prjid.close() |
---|
796 | |
---|
797 | L = lines[0].strip().split() |
---|
798 | assert L[0].strip().lower() == 'projection' |
---|
799 | assert L[1].strip().lower() == 'utm' |
---|
800 | |
---|
801 | L = lines[1].strip().split() |
---|
802 | assert L[0].strip().lower() == 'zone' |
---|
803 | assert L[1].strip().lower() == '56' |
---|
804 | |
---|
805 | L = lines[2].strip().split() |
---|
806 | assert L[0].strip().lower() == 'datum' |
---|
807 | assert L[1].strip().lower() == 'wgs84' |
---|
808 | |
---|
809 | L = lines[3].strip().split() |
---|
810 | assert L[0].strip().lower() == 'zunits' |
---|
811 | assert L[1].strip().lower() == 'no' |
---|
812 | |
---|
813 | L = lines[4].strip().split() |
---|
814 | assert L[0].strip().lower() == 'units' |
---|
815 | assert L[1].strip().lower() == 'meters' |
---|
816 | |
---|
817 | L = lines[5].strip().split() |
---|
818 | assert L[0].strip().lower() == 'spheroid' |
---|
819 | assert L[1].strip().lower() == 'wgs84' |
---|
820 | |
---|
821 | L = lines[6].strip().split() |
---|
822 | assert L[0].strip().lower() == 'xshift' |
---|
823 | assert L[1].strip().lower() == '500000' |
---|
824 | |
---|
825 | L = lines[7].strip().split() |
---|
826 | assert L[0].strip().lower() == 'yshift' |
---|
827 | assert L[1].strip().lower() == '10000000' |
---|
828 | |
---|
829 | L = lines[8].strip().split() |
---|
830 | assert L[0].strip().lower() == 'parameters' |
---|
831 | |
---|
832 | |
---|
833 | #Check asc file |
---|
834 | ascid = open(ascfile) |
---|
835 | lines = ascid.readlines() |
---|
836 | ascid.close() |
---|
837 | |
---|
838 | L = lines[0].strip().split() |
---|
839 | assert L[0].strip().lower() == 'ncols' |
---|
840 | assert L[1].strip().lower() == '5' |
---|
841 | |
---|
842 | L = lines[1].strip().split() |
---|
843 | assert L[0].strip().lower() == 'nrows' |
---|
844 | assert L[1].strip().lower() == '5' |
---|
845 | |
---|
846 | L = lines[2].strip().split() |
---|
847 | assert L[0].strip().lower() == 'xllcorner' |
---|
848 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
849 | |
---|
850 | L = lines[3].strip().split() |
---|
851 | assert L[0].strip().lower() == 'yllcorner' |
---|
852 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
853 | |
---|
854 | L = lines[4].strip().split() |
---|
855 | assert L[0].strip().lower() == 'cellsize' |
---|
856 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
857 | |
---|
858 | L = lines[5].strip().split() |
---|
859 | assert L[0].strip() == 'NODATA_value' |
---|
860 | assert L[1].strip().lower() == '-9999' |
---|
861 | |
---|
862 | #Check grid values |
---|
863 | for j in range(5): |
---|
864 | L = lines[6+j].strip().split() |
---|
865 | y = (4-j) * cellsize |
---|
866 | for i in range(5): |
---|
867 | assert allclose(float(L[i]), -i*cellsize - y) |
---|
868 | |
---|
869 | |
---|
870 | fid.close() |
---|
871 | |
---|
872 | #Cleanup |
---|
873 | os.remove(prjfile) |
---|
874 | os.remove(ascfile) |
---|
875 | os.remove(swwfile) |
---|
876 | |
---|
877 | |
---|
878 | |
---|
879 | def test_sww2dem_larger(self): |
---|
880 | """Test that sww information can be converted correctly to asc/prj |
---|
881 | format readable by e.g. ArcView. Here: |
---|
882 | |
---|
883 | ncols 11 |
---|
884 | nrows 11 |
---|
885 | xllcorner 308500 |
---|
886 | yllcorner 6189000 |
---|
887 | cellsize 10.000000 |
---|
888 | NODATA_value -9999 |
---|
889 | -100 -110 -120 -130 -140 -150 -160 -170 -180 -190 -200 |
---|
890 | -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 -190 |
---|
891 | -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 |
---|
892 | -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 |
---|
893 | -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 |
---|
894 | -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 |
---|
895 | -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 |
---|
896 | -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 |
---|
897 | -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 |
---|
898 | -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 |
---|
899 | 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 |
---|
900 | |
---|
901 | """ |
---|
902 | |
---|
903 | import time, os |
---|
904 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
905 | from Scientific.IO.NetCDF import NetCDFFile |
---|
906 | |
---|
907 | #Setup |
---|
908 | |
---|
909 | from mesh_factory import rectangular |
---|
910 | |
---|
911 | #Create basic mesh (100m x 100m) |
---|
912 | points, vertices, boundary = rectangular(2, 2, 100, 100) |
---|
913 | |
---|
914 | #Create shallow water domain |
---|
915 | domain = Domain(points, vertices, boundary) |
---|
916 | domain.default_order = 2 |
---|
917 | |
---|
918 | domain.filename = 'datatest' |
---|
919 | |
---|
920 | prjfile = domain.filename + '_elevation.prj' |
---|
921 | ascfile = domain.filename + '_elevation.asc' |
---|
922 | swwfile = domain.filename + '.sww' |
---|
923 | |
---|
924 | domain.set_datadir('.') |
---|
925 | domain.format = 'sww' |
---|
926 | domain.smooth = True |
---|
927 | domain.geo_reference = Geo_reference(56, 308500, 6189000) |
---|
928 | |
---|
929 | # |
---|
930 | domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
931 | domain.set_quantity('stage', 0) |
---|
932 | |
---|
933 | B = Transmissive_boundary(domain) |
---|
934 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
---|
935 | |
---|
936 | |
---|
937 | # |
---|
938 | sww = get_dataobject(domain) |
---|
939 | sww.store_connectivity() |
---|
940 | sww.store_timestep('stage') |
---|
941 | |
---|
942 | domain.evolve_to_end(finaltime = 0.01) |
---|
943 | sww.store_timestep('stage') |
---|
944 | |
---|
945 | cellsize = 10 #10m grid |
---|
946 | |
---|
947 | |
---|
948 | #Check contents |
---|
949 | #Get NetCDF |
---|
950 | |
---|
951 | fid = NetCDFFile(sww.filename, 'r') |
---|
952 | |
---|
953 | # Get the variables |
---|
954 | x = fid.variables['x'][:] |
---|
955 | y = fid.variables['y'][:] |
---|
956 | z = fid.variables['elevation'][:] |
---|
957 | time = fid.variables['time'][:] |
---|
958 | stage = fid.variables['stage'][:] |
---|
959 | |
---|
960 | |
---|
961 | #Export to ascii/prj files |
---|
962 | sww2dem(domain.filename, |
---|
963 | quantity = 'elevation', |
---|
964 | cellsize = cellsize, |
---|
965 | verbose = False, |
---|
966 | format = 'asc') |
---|
967 | |
---|
968 | |
---|
969 | #Check prj (meta data) |
---|
970 | prjid = open(prjfile) |
---|
971 | lines = prjid.readlines() |
---|
972 | prjid.close() |
---|
973 | |
---|
974 | L = lines[0].strip().split() |
---|
975 | assert L[0].strip().lower() == 'projection' |
---|
976 | assert L[1].strip().lower() == 'utm' |
---|
977 | |
---|
978 | L = lines[1].strip().split() |
---|
979 | assert L[0].strip().lower() == 'zone' |
---|
980 | assert L[1].strip().lower() == '56' |
---|
981 | |
---|
982 | L = lines[2].strip().split() |
---|
983 | assert L[0].strip().lower() == 'datum' |
---|
984 | assert L[1].strip().lower() == 'wgs84' |
---|
985 | |
---|
986 | L = lines[3].strip().split() |
---|
987 | assert L[0].strip().lower() == 'zunits' |
---|
988 | assert L[1].strip().lower() == 'no' |
---|
989 | |
---|
990 | L = lines[4].strip().split() |
---|
991 | assert L[0].strip().lower() == 'units' |
---|
992 | assert L[1].strip().lower() == 'meters' |
---|
993 | |
---|
994 | L = lines[5].strip().split() |
---|
995 | assert L[0].strip().lower() == 'spheroid' |
---|
996 | assert L[1].strip().lower() == 'wgs84' |
---|
997 | |
---|
998 | L = lines[6].strip().split() |
---|
999 | assert L[0].strip().lower() == 'xshift' |
---|
1000 | assert L[1].strip().lower() == '500000' |
---|
1001 | |
---|
1002 | L = lines[7].strip().split() |
---|
1003 | assert L[0].strip().lower() == 'yshift' |
---|
1004 | assert L[1].strip().lower() == '10000000' |
---|
1005 | |
---|
1006 | L = lines[8].strip().split() |
---|
1007 | assert L[0].strip().lower() == 'parameters' |
---|
1008 | |
---|
1009 | |
---|
1010 | #Check asc file |
---|
1011 | ascid = open(ascfile) |
---|
1012 | lines = ascid.readlines() |
---|
1013 | ascid.close() |
---|
1014 | |
---|
1015 | L = lines[0].strip().split() |
---|
1016 | assert L[0].strip().lower() == 'ncols' |
---|
1017 | assert L[1].strip().lower() == '11' |
---|
1018 | |
---|
1019 | L = lines[1].strip().split() |
---|
1020 | assert L[0].strip().lower() == 'nrows' |
---|
1021 | assert L[1].strip().lower() == '11' |
---|
1022 | |
---|
1023 | L = lines[2].strip().split() |
---|
1024 | assert L[0].strip().lower() == 'xllcorner' |
---|
1025 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
1026 | |
---|
1027 | L = lines[3].strip().split() |
---|
1028 | assert L[0].strip().lower() == 'yllcorner' |
---|
1029 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
1030 | |
---|
1031 | L = lines[4].strip().split() |
---|
1032 | assert L[0].strip().lower() == 'cellsize' |
---|
1033 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
1034 | |
---|
1035 | L = lines[5].strip().split() |
---|
1036 | assert L[0].strip() == 'NODATA_value' |
---|
1037 | assert L[1].strip().lower() == '-9999' |
---|
1038 | |
---|
1039 | #Check grid values (FIXME: Use same strategy for other sww2dem tests) |
---|
1040 | for i, line in enumerate(lines[6:]): |
---|
1041 | for j, value in enumerate( line.split() ): |
---|
1042 | #assert allclose(float(value), -(10-i+j)*cellsize) |
---|
1043 | assert float(value) == -(10-i+j)*cellsize |
---|
1044 | |
---|
1045 | |
---|
1046 | fid.close() |
---|
1047 | |
---|
1048 | #Cleanup |
---|
1049 | os.remove(prjfile) |
---|
1050 | os.remove(ascfile) |
---|
1051 | os.remove(swwfile) |
---|
1052 | |
---|
1053 | |
---|
1054 | |
---|
1055 | def test_sww2dem_boundingbox(self): |
---|
1056 | """Test that sww information can be converted correctly to asc/prj |
---|
1057 | format readable by e.g. ArcView. |
---|
1058 | This will test that mesh can be restricted by bounding box |
---|
1059 | |
---|
1060 | Original extent is 100m x 100m: |
---|
1061 | |
---|
1062 | Eastings: 308500 - 308600 |
---|
1063 | Northings: 6189000 - 6189100 |
---|
1064 | |
---|
1065 | Bounding box changes this to the 50m x 50m square defined by |
---|
1066 | |
---|
1067 | Eastings: 308530 - 308570 |
---|
1068 | Northings: 6189050 - 6189100 |
---|
1069 | |
---|
1070 | The cropped values should be |
---|
1071 | |
---|
1072 | -130 -140 -150 -160 -170 |
---|
1073 | -120 -130 -140 -150 -160 |
---|
1074 | -110 -120 -130 -140 -150 |
---|
1075 | -100 -110 -120 -130 -140 |
---|
1076 | -90 -100 -110 -120 -130 |
---|
1077 | -80 -90 -100 -110 -120 |
---|
1078 | |
---|
1079 | and the new lower reference point should be |
---|
1080 | Eastings: 308530 |
---|
1081 | Northings: 6189050 |
---|
1082 | |
---|
1083 | Original dataset is the same as in test_sww2dem_larger() |
---|
1084 | |
---|
1085 | """ |
---|
1086 | |
---|
1087 | import time, os |
---|
1088 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
1089 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1090 | |
---|
1091 | #Setup |
---|
1092 | |
---|
1093 | from mesh_factory import rectangular |
---|
1094 | |
---|
1095 | #Create basic mesh (100m x 100m) |
---|
1096 | points, vertices, boundary = rectangular(2, 2, 100, 100) |
---|
1097 | |
---|
1098 | #Create shallow water domain |
---|
1099 | domain = Domain(points, vertices, boundary) |
---|
1100 | domain.default_order = 2 |
---|
1101 | |
---|
1102 | domain.filename = 'datatest' |
---|
1103 | |
---|
1104 | prjfile = domain.filename + '_elevation.prj' |
---|
1105 | ascfile = domain.filename + '_elevation.asc' |
---|
1106 | swwfile = domain.filename + '.sww' |
---|
1107 | |
---|
1108 | domain.set_datadir('.') |
---|
1109 | domain.format = 'sww' |
---|
1110 | domain.smooth = True |
---|
1111 | domain.geo_reference = Geo_reference(56, 308500, 6189000) |
---|
1112 | |
---|
1113 | # |
---|
1114 | domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
1115 | domain.set_quantity('stage', 0) |
---|
1116 | |
---|
1117 | B = Transmissive_boundary(domain) |
---|
1118 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
---|
1119 | |
---|
1120 | |
---|
1121 | # |
---|
1122 | sww = get_dataobject(domain) |
---|
1123 | sww.store_connectivity() |
---|
1124 | sww.store_timestep('stage') |
---|
1125 | |
---|
1126 | domain.evolve_to_end(finaltime = 0.01) |
---|
1127 | sww.store_timestep('stage') |
---|
1128 | |
---|
1129 | cellsize = 10 #10m grid |
---|
1130 | |
---|
1131 | |
---|
1132 | #Check contents |
---|
1133 | #Get NetCDF |
---|
1134 | |
---|
1135 | fid = NetCDFFile(sww.filename, 'r') |
---|
1136 | |
---|
1137 | # Get the variables |
---|
1138 | x = fid.variables['x'][:] |
---|
1139 | y = fid.variables['y'][:] |
---|
1140 | z = fid.variables['elevation'][:] |
---|
1141 | time = fid.variables['time'][:] |
---|
1142 | stage = fid.variables['stage'][:] |
---|
1143 | |
---|
1144 | |
---|
1145 | #Export to ascii/prj files |
---|
1146 | sww2dem(domain.filename, |
---|
1147 | quantity = 'elevation', |
---|
1148 | cellsize = cellsize, |
---|
1149 | easting_min = 308530, |
---|
1150 | easting_max = 308570, |
---|
1151 | northing_min = 6189050, |
---|
1152 | northing_max = 6189100, |
---|
1153 | verbose = False, |
---|
1154 | format = 'asc') |
---|
1155 | |
---|
1156 | fid.close() |
---|
1157 | |
---|
1158 | |
---|
1159 | #Check prj (meta data) |
---|
1160 | prjid = open(prjfile) |
---|
1161 | lines = prjid.readlines() |
---|
1162 | prjid.close() |
---|
1163 | |
---|
1164 | L = lines[0].strip().split() |
---|
1165 | assert L[0].strip().lower() == 'projection' |
---|
1166 | assert L[1].strip().lower() == 'utm' |
---|
1167 | |
---|
1168 | L = lines[1].strip().split() |
---|
1169 | assert L[0].strip().lower() == 'zone' |
---|
1170 | assert L[1].strip().lower() == '56' |
---|
1171 | |
---|
1172 | L = lines[2].strip().split() |
---|
1173 | assert L[0].strip().lower() == 'datum' |
---|
1174 | assert L[1].strip().lower() == 'wgs84' |
---|
1175 | |
---|
1176 | L = lines[3].strip().split() |
---|
1177 | assert L[0].strip().lower() == 'zunits' |
---|
1178 | assert L[1].strip().lower() == 'no' |
---|
1179 | |
---|
1180 | L = lines[4].strip().split() |
---|
1181 | assert L[0].strip().lower() == 'units' |
---|
1182 | assert L[1].strip().lower() == 'meters' |
---|
1183 | |
---|
1184 | L = lines[5].strip().split() |
---|
1185 | assert L[0].strip().lower() == 'spheroid' |
---|
1186 | assert L[1].strip().lower() == 'wgs84' |
---|
1187 | |
---|
1188 | L = lines[6].strip().split() |
---|
1189 | assert L[0].strip().lower() == 'xshift' |
---|
1190 | assert L[1].strip().lower() == '500000' |
---|
1191 | |
---|
1192 | L = lines[7].strip().split() |
---|
1193 | assert L[0].strip().lower() == 'yshift' |
---|
1194 | assert L[1].strip().lower() == '10000000' |
---|
1195 | |
---|
1196 | L = lines[8].strip().split() |
---|
1197 | assert L[0].strip().lower() == 'parameters' |
---|
1198 | |
---|
1199 | |
---|
1200 | #Check asc file |
---|
1201 | ascid = open(ascfile) |
---|
1202 | lines = ascid.readlines() |
---|
1203 | ascid.close() |
---|
1204 | |
---|
1205 | L = lines[0].strip().split() |
---|
1206 | assert L[0].strip().lower() == 'ncols' |
---|
1207 | assert L[1].strip().lower() == '5' |
---|
1208 | |
---|
1209 | L = lines[1].strip().split() |
---|
1210 | assert L[0].strip().lower() == 'nrows' |
---|
1211 | assert L[1].strip().lower() == '6' |
---|
1212 | |
---|
1213 | L = lines[2].strip().split() |
---|
1214 | assert L[0].strip().lower() == 'xllcorner' |
---|
1215 | assert allclose(float(L[1].strip().lower()), 308530) |
---|
1216 | |
---|
1217 | L = lines[3].strip().split() |
---|
1218 | assert L[0].strip().lower() == 'yllcorner' |
---|
1219 | assert allclose(float(L[1].strip().lower()), 6189050) |
---|
1220 | |
---|
1221 | L = lines[4].strip().split() |
---|
1222 | assert L[0].strip().lower() == 'cellsize' |
---|
1223 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
1224 | |
---|
1225 | L = lines[5].strip().split() |
---|
1226 | assert L[0].strip() == 'NODATA_value' |
---|
1227 | assert L[1].strip().lower() == '-9999' |
---|
1228 | |
---|
1229 | #Check grid values |
---|
1230 | for i, line in enumerate(lines[6:]): |
---|
1231 | for j, value in enumerate( line.split() ): |
---|
1232 | #assert float(value) == -(10-i+j)*cellsize |
---|
1233 | assert float(value) == -(10-i+j+3)*cellsize |
---|
1234 | |
---|
1235 | |
---|
1236 | |
---|
1237 | #Cleanup |
---|
1238 | os.remove(prjfile) |
---|
1239 | os.remove(ascfile) |
---|
1240 | os.remove(swwfile) |
---|
1241 | |
---|
1242 | |
---|
1243 | |
---|
1244 | def test_sww2dem_asc_stage_reduction(self): |
---|
1245 | """Test that sww information can be converted correctly to asc/prj |
---|
1246 | format readable by e.g. ArcView |
---|
1247 | |
---|
1248 | This tests the reduction of quantity stage using min |
---|
1249 | """ |
---|
1250 | |
---|
1251 | import time, os |
---|
1252 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
1253 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1254 | |
---|
1255 | #Setup |
---|
1256 | self.domain.filename = 'datatest' |
---|
1257 | |
---|
1258 | prjfile = self.domain.filename + '_stage.prj' |
---|
1259 | ascfile = self.domain.filename + '_stage.asc' |
---|
1260 | swwfile = self.domain.filename + '.sww' |
---|
1261 | |
---|
1262 | self.domain.set_datadir('.') |
---|
1263 | self.domain.format = 'sww' |
---|
1264 | self.domain.smooth = True |
---|
1265 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
1266 | |
---|
1267 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
1268 | |
---|
1269 | |
---|
1270 | sww = get_dataobject(self.domain) |
---|
1271 | sww.store_connectivity() |
---|
1272 | sww.store_timestep('stage') |
---|
1273 | |
---|
1274 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
1275 | sww.store_timestep('stage') |
---|
1276 | |
---|
1277 | cellsize = 0.25 |
---|
1278 | #Check contents |
---|
1279 | #Get NetCDF |
---|
1280 | |
---|
1281 | fid = NetCDFFile(sww.filename, 'r') |
---|
1282 | |
---|
1283 | # Get the variables |
---|
1284 | x = fid.variables['x'][:] |
---|
1285 | y = fid.variables['y'][:] |
---|
1286 | z = fid.variables['elevation'][:] |
---|
1287 | time = fid.variables['time'][:] |
---|
1288 | stage = fid.variables['stage'][:] |
---|
1289 | |
---|
1290 | |
---|
1291 | #Export to ascii/prj files |
---|
1292 | sww2dem(self.domain.filename, |
---|
1293 | quantity = 'stage', |
---|
1294 | cellsize = cellsize, |
---|
1295 | reduction = min, |
---|
1296 | format = 'asc') |
---|
1297 | |
---|
1298 | |
---|
1299 | #Check asc file |
---|
1300 | ascid = open(ascfile) |
---|
1301 | lines = ascid.readlines() |
---|
1302 | ascid.close() |
---|
1303 | |
---|
1304 | L = lines[0].strip().split() |
---|
1305 | assert L[0].strip().lower() == 'ncols' |
---|
1306 | assert L[1].strip().lower() == '5' |
---|
1307 | |
---|
1308 | L = lines[1].strip().split() |
---|
1309 | assert L[0].strip().lower() == 'nrows' |
---|
1310 | assert L[1].strip().lower() == '5' |
---|
1311 | |
---|
1312 | L = lines[2].strip().split() |
---|
1313 | assert L[0].strip().lower() == 'xllcorner' |
---|
1314 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
1315 | |
---|
1316 | L = lines[3].strip().split() |
---|
1317 | assert L[0].strip().lower() == 'yllcorner' |
---|
1318 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
1319 | |
---|
1320 | L = lines[4].strip().split() |
---|
1321 | assert L[0].strip().lower() == 'cellsize' |
---|
1322 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
1323 | |
---|
1324 | L = lines[5].strip().split() |
---|
1325 | assert L[0].strip() == 'NODATA_value' |
---|
1326 | assert L[1].strip().lower() == '-9999' |
---|
1327 | |
---|
1328 | |
---|
1329 | #Check grid values (where applicable) |
---|
1330 | for j in range(5): |
---|
1331 | if j%2 == 0: |
---|
1332 | L = lines[6+j].strip().split() |
---|
1333 | jj = 4-j |
---|
1334 | for i in range(5): |
---|
1335 | if i%2 == 0: |
---|
1336 | index = jj/2 + i/2*3 |
---|
1337 | val0 = stage[0,index] |
---|
1338 | val1 = stage[1,index] |
---|
1339 | |
---|
1340 | #print i, j, index, ':', L[i], val0, val1 |
---|
1341 | assert allclose(float(L[i]), min(val0, val1)) |
---|
1342 | |
---|
1343 | |
---|
1344 | fid.close() |
---|
1345 | |
---|
1346 | #Cleanup |
---|
1347 | os.remove(prjfile) |
---|
1348 | os.remove(ascfile) |
---|
1349 | #os.remove(swwfile) |
---|
1350 | |
---|
1351 | |
---|
1352 | |
---|
1353 | |
---|
1354 | def test_sww2dem_asc_missing_points(self): |
---|
1355 | """Test that sww information can be converted correctly to asc/prj |
---|
1356 | format readable by e.g. ArcView |
---|
1357 | |
---|
1358 | This test includes the writing of missing values |
---|
1359 | """ |
---|
1360 | |
---|
1361 | import time, os |
---|
1362 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
1363 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1364 | |
---|
1365 | #Setup mesh not coinciding with rectangle. |
---|
1366 | #This will cause missing values to occur in gridded data |
---|
1367 | |
---|
1368 | |
---|
1369 | points = [ [1.0, 1.0], |
---|
1370 | [0.5, 0.5], [1.0, 0.5], |
---|
1371 | [0.0, 0.0], [0.5, 0.0], [1.0, 0.0]] |
---|
1372 | |
---|
1373 | vertices = [ [4,1,3], [5,2,4], [1,4,2], [2,0,1]] |
---|
1374 | |
---|
1375 | #Create shallow water domain |
---|
1376 | domain = Domain(points, vertices) |
---|
1377 | domain.default_order=2 |
---|
1378 | |
---|
1379 | |
---|
1380 | #Set some field values |
---|
1381 | domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
1382 | domain.set_quantity('friction', 0.03) |
---|
1383 | |
---|
1384 | |
---|
1385 | ###################### |
---|
1386 | # Boundary conditions |
---|
1387 | B = Transmissive_boundary(domain) |
---|
1388 | domain.set_boundary( {'exterior': B} ) |
---|
1389 | |
---|
1390 | |
---|
1391 | ###################### |
---|
1392 | #Initial condition - with jumps |
---|
1393 | |
---|
1394 | bed = domain.quantities['elevation'].vertex_values |
---|
1395 | stage = zeros(bed.shape, Float) |
---|
1396 | |
---|
1397 | h = 0.3 |
---|
1398 | for i in range(stage.shape[0]): |
---|
1399 | if i % 2 == 0: |
---|
1400 | stage[i,:] = bed[i,:] + h |
---|
1401 | else: |
---|
1402 | stage[i,:] = bed[i,:] |
---|
1403 | |
---|
1404 | domain.set_quantity('stage', stage) |
---|
1405 | domain.distribute_to_vertices_and_edges() |
---|
1406 | |
---|
1407 | domain.filename = 'datatest' |
---|
1408 | |
---|
1409 | prjfile = domain.filename + '_elevation.prj' |
---|
1410 | ascfile = domain.filename + '_elevation.asc' |
---|
1411 | swwfile = domain.filename + '.sww' |
---|
1412 | |
---|
1413 | domain.set_datadir('.') |
---|
1414 | domain.format = 'sww' |
---|
1415 | domain.smooth = True |
---|
1416 | |
---|
1417 | domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
1418 | |
---|
1419 | sww = get_dataobject(domain) |
---|
1420 | sww.store_connectivity() |
---|
1421 | sww.store_timestep('stage') |
---|
1422 | |
---|
1423 | cellsize = 0.25 |
---|
1424 | #Check contents |
---|
1425 | #Get NetCDF |
---|
1426 | |
---|
1427 | fid = NetCDFFile(swwfile, 'r') |
---|
1428 | |
---|
1429 | # Get the variables |
---|
1430 | x = fid.variables['x'][:] |
---|
1431 | y = fid.variables['y'][:] |
---|
1432 | z = fid.variables['elevation'][:] |
---|
1433 | time = fid.variables['time'][:] |
---|
1434 | |
---|
1435 | try: |
---|
1436 | geo_reference = Geo_reference(NetCDFObject=fid) |
---|
1437 | except AttributeError, e: |
---|
1438 | geo_reference = Geo_reference(DEFAULT_ZONE,0,0) |
---|
1439 | |
---|
1440 | #Export to ascii/prj files |
---|
1441 | sww2dem(domain.filename, |
---|
1442 | quantity = 'elevation', |
---|
1443 | cellsize = cellsize, |
---|
1444 | verbose = False, |
---|
1445 | format = 'asc') |
---|
1446 | |
---|
1447 | |
---|
1448 | #Check asc file |
---|
1449 | ascid = open(ascfile) |
---|
1450 | lines = ascid.readlines() |
---|
1451 | ascid.close() |
---|
1452 | |
---|
1453 | L = lines[0].strip().split() |
---|
1454 | assert L[0].strip().lower() == 'ncols' |
---|
1455 | assert L[1].strip().lower() == '5' |
---|
1456 | |
---|
1457 | L = lines[1].strip().split() |
---|
1458 | assert L[0].strip().lower() == 'nrows' |
---|
1459 | assert L[1].strip().lower() == '5' |
---|
1460 | |
---|
1461 | L = lines[2].strip().split() |
---|
1462 | assert L[0].strip().lower() == 'xllcorner' |
---|
1463 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
1464 | |
---|
1465 | L = lines[3].strip().split() |
---|
1466 | assert L[0].strip().lower() == 'yllcorner' |
---|
1467 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
1468 | |
---|
1469 | L = lines[4].strip().split() |
---|
1470 | assert L[0].strip().lower() == 'cellsize' |
---|
1471 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
1472 | |
---|
1473 | L = lines[5].strip().split() |
---|
1474 | assert L[0].strip() == 'NODATA_value' |
---|
1475 | assert L[1].strip().lower() == '-9999' |
---|
1476 | |
---|
1477 | |
---|
1478 | #Check grid values |
---|
1479 | for j in range(5): |
---|
1480 | L = lines[6+j].strip().split() |
---|
1481 | y = (4-j) * cellsize |
---|
1482 | for i in range(5): |
---|
1483 | if i+j >= 4: |
---|
1484 | assert allclose(float(L[i]), -i*cellsize - y) |
---|
1485 | else: |
---|
1486 | #Missing values |
---|
1487 | assert allclose(float(L[i]), -9999) |
---|
1488 | |
---|
1489 | |
---|
1490 | |
---|
1491 | fid.close() |
---|
1492 | |
---|
1493 | #Cleanup |
---|
1494 | os.remove(prjfile) |
---|
1495 | os.remove(ascfile) |
---|
1496 | os.remove(swwfile) |
---|
1497 | |
---|
1498 | def test_sww2ers_simple(self): |
---|
1499 | """Test that sww information can be converted correctly to asc/prj |
---|
1500 | format readable by e.g. ArcView |
---|
1501 | """ |
---|
1502 | |
---|
1503 | import time, os |
---|
1504 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
1505 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1506 | |
---|
1507 | #Setup |
---|
1508 | self.domain.filename = 'datatest' |
---|
1509 | |
---|
1510 | headerfile = self.domain.filename + '.ers' |
---|
1511 | swwfile = self.domain.filename + '.sww' |
---|
1512 | |
---|
1513 | self.domain.set_datadir('.') |
---|
1514 | self.domain.format = 'sww' |
---|
1515 | self.domain.smooth = True |
---|
1516 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
1517 | |
---|
1518 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
1519 | |
---|
1520 | sww = get_dataobject(self.domain) |
---|
1521 | sww.store_connectivity() |
---|
1522 | sww.store_timestep('stage') |
---|
1523 | |
---|
1524 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
1525 | sww.store_timestep('stage') |
---|
1526 | |
---|
1527 | cellsize = 0.25 |
---|
1528 | #Check contents |
---|
1529 | #Get NetCDF |
---|
1530 | |
---|
1531 | fid = NetCDFFile(sww.filename, 'r') |
---|
1532 | |
---|
1533 | # Get the variables |
---|
1534 | x = fid.variables['x'][:] |
---|
1535 | y = fid.variables['y'][:] |
---|
1536 | z = fid.variables['elevation'][:] |
---|
1537 | time = fid.variables['time'][:] |
---|
1538 | stage = fid.variables['stage'][:] |
---|
1539 | |
---|
1540 | |
---|
1541 | #Export to ers files |
---|
1542 | #sww2ers(self.domain.filename, |
---|
1543 | # quantity = 'elevation', |
---|
1544 | # cellsize = cellsize, |
---|
1545 | # verbose = False) |
---|
1546 | |
---|
1547 | sww2dem(self.domain.filename, |
---|
1548 | quantity = 'elevation', |
---|
1549 | cellsize = cellsize, |
---|
1550 | verbose = False, |
---|
1551 | format = 'ers') |
---|
1552 | |
---|
1553 | #Check header data |
---|
1554 | from ermapper_grids import read_ermapper_header, read_ermapper_data |
---|
1555 | |
---|
1556 | header = read_ermapper_header(self.domain.filename + '_elevation.ers') |
---|
1557 | #print header |
---|
1558 | assert header['projection'].lower() == '"utm-56"' |
---|
1559 | assert header['datum'].lower() == '"wgs84"' |
---|
1560 | assert header['units'].lower() == '"meters"' |
---|
1561 | assert header['value'].lower() == '"elevation"' |
---|
1562 | assert header['xdimension'] == '0.25' |
---|
1563 | assert header['ydimension'] == '0.25' |
---|
1564 | assert float(header['eastings']) == 308500.0 #xllcorner |
---|
1565 | assert float(header['northings']) == 6189000.0 #yllcorner |
---|
1566 | assert int(header['nroflines']) == 5 |
---|
1567 | assert int(header['nrofcellsperline']) == 5 |
---|
1568 | assert int(header['nullcellvalue']) == 0 #? |
---|
1569 | #FIXME - there is more in the header |
---|
1570 | |
---|
1571 | |
---|
1572 | #Check grid data |
---|
1573 | grid = read_ermapper_data(self.domain.filename + '_elevation') |
---|
1574 | |
---|
1575 | #FIXME (Ole): Why is this the desired reference grid for -x-y? |
---|
1576 | ref_grid = [0, 0, 0, 0, 0, |
---|
1577 | -1, -1.25, -1.5, -1.75, -2.0, |
---|
1578 | -0.75, -1.0, -1.25, -1.5, -1.75, |
---|
1579 | -0.5, -0.75, -1.0, -1.25, -1.5, |
---|
1580 | -0.25, -0.5, -0.75, -1.0, -1.25] |
---|
1581 | |
---|
1582 | |
---|
1583 | assert allclose(grid, ref_grid) |
---|
1584 | |
---|
1585 | fid.close() |
---|
1586 | |
---|
1587 | #Cleanup |
---|
1588 | #FIXME the file clean-up doesn't work (eg Permission Denied Error) |
---|
1589 | #Done (Ole) - it was because sww2ers didn't close it's sww file |
---|
1590 | os.remove(sww.filename) |
---|
1591 | |
---|
1592 | |
---|
1593 | |
---|
1594 | def test_ferret2sww(self): |
---|
1595 | """Test that georeferencing etc works when converting from |
---|
1596 | ferret format (lat/lon) to sww format (UTM) |
---|
1597 | """ |
---|
1598 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1599 | |
---|
1600 | #The test file has |
---|
1601 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
1602 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
1603 | # TIME = 0, 0.1, 0.6, 1.1, 1.6, 2.1 ; |
---|
1604 | # |
---|
1605 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
1606 | # Fourth value (index==3) is -6.50198 cm |
---|
1607 | |
---|
1608 | |
---|
1609 | from coordinate_transforms.redfearn import redfearn |
---|
1610 | |
---|
1611 | fid = NetCDFFile('small_ha.nc') |
---|
1612 | first_value = fid.variables['HA'][:][0,0,0] |
---|
1613 | fourth_value = fid.variables['HA'][:][0,0,3] |
---|
1614 | |
---|
1615 | |
---|
1616 | #Call conversion (with zero origin) |
---|
1617 | ferret2sww('small', verbose=False, |
---|
1618 | origin = (56, 0, 0)) |
---|
1619 | |
---|
1620 | |
---|
1621 | #Work out the UTM coordinates for first point |
---|
1622 | zone, e, n = redfearn(-34.5, 150.66667) |
---|
1623 | #print zone, e, n |
---|
1624 | |
---|
1625 | #Read output file 'small.sww' |
---|
1626 | fid = NetCDFFile('small.sww') |
---|
1627 | |
---|
1628 | x = fid.variables['x'][:] |
---|
1629 | y = fid.variables['y'][:] |
---|
1630 | |
---|
1631 | #Check that first coordinate is correctly represented |
---|
1632 | assert allclose(x[0], e) |
---|
1633 | assert allclose(y[0], n) |
---|
1634 | |
---|
1635 | #Check first value |
---|
1636 | stage = fid.variables['stage'][:] |
---|
1637 | xmomentum = fid.variables['xmomentum'][:] |
---|
1638 | ymomentum = fid.variables['ymomentum'][:] |
---|
1639 | |
---|
1640 | #print ymomentum |
---|
1641 | |
---|
1642 | assert allclose(stage[0,0], first_value/100) #Meters |
---|
1643 | |
---|
1644 | #Check fourth value |
---|
1645 | assert allclose(stage[0,3], fourth_value/100) #Meters |
---|
1646 | |
---|
1647 | fid.close() |
---|
1648 | |
---|
1649 | #Cleanup |
---|
1650 | import os |
---|
1651 | os.remove('small.sww') |
---|
1652 | |
---|
1653 | |
---|
1654 | |
---|
1655 | def test_ferret2sww_2(self): |
---|
1656 | """Test that georeferencing etc works when converting from |
---|
1657 | ferret format (lat/lon) to sww format (UTM) |
---|
1658 | """ |
---|
1659 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1660 | |
---|
1661 | #The test file has |
---|
1662 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
1663 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
1664 | # TIME = 0, 0.1, 0.6, 1.1, 1.6, 2.1 ; |
---|
1665 | # |
---|
1666 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
1667 | # Fourth value (index==3) is -6.50198 cm |
---|
1668 | |
---|
1669 | |
---|
1670 | from coordinate_transforms.redfearn import redfearn |
---|
1671 | |
---|
1672 | fid = NetCDFFile('small_ha.nc') |
---|
1673 | |
---|
1674 | #Pick a coordinate and a value |
---|
1675 | |
---|
1676 | time_index = 1 |
---|
1677 | lat_index = 0 |
---|
1678 | lon_index = 2 |
---|
1679 | |
---|
1680 | test_value = fid.variables['HA'][:][time_index, lat_index, lon_index] |
---|
1681 | test_time = fid.variables['TIME'][:][time_index] |
---|
1682 | test_lat = fid.variables['LAT'][:][lat_index] |
---|
1683 | test_lon = fid.variables['LON'][:][lon_index] |
---|
1684 | |
---|
1685 | linear_point_index = lat_index*4 + lon_index |
---|
1686 | fid.close() |
---|
1687 | |
---|
1688 | #Call conversion (with zero origin) |
---|
1689 | ferret2sww('small', verbose=False, |
---|
1690 | origin = (56, 0, 0)) |
---|
1691 | |
---|
1692 | |
---|
1693 | #Work out the UTM coordinates for test point |
---|
1694 | zone, e, n = redfearn(test_lat, test_lon) |
---|
1695 | |
---|
1696 | #Read output file 'small.sww' |
---|
1697 | fid = NetCDFFile('small.sww') |
---|
1698 | |
---|
1699 | x = fid.variables['x'][:] |
---|
1700 | y = fid.variables['y'][:] |
---|
1701 | |
---|
1702 | #Check that test coordinate is correctly represented |
---|
1703 | assert allclose(x[linear_point_index], e) |
---|
1704 | assert allclose(y[linear_point_index], n) |
---|
1705 | |
---|
1706 | #Check test value |
---|
1707 | stage = fid.variables['stage'][:] |
---|
1708 | |
---|
1709 | assert allclose(stage[time_index, linear_point_index], test_value/100) |
---|
1710 | |
---|
1711 | fid.close() |
---|
1712 | |
---|
1713 | #Cleanup |
---|
1714 | import os |
---|
1715 | os.remove('small.sww') |
---|
1716 | |
---|
1717 | |
---|
1718 | |
---|
1719 | def test_ferret2sww3(self): |
---|
1720 | """Elevation included |
---|
1721 | """ |
---|
1722 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1723 | |
---|
1724 | #The test file has |
---|
1725 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
1726 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
1727 | # ELEVATION = [-1 -2 -3 -4 |
---|
1728 | # -5 -6 -7 -8 |
---|
1729 | # ... |
---|
1730 | # ... -16] |
---|
1731 | # where the top left corner is -1m, |
---|
1732 | # and the ll corner is -13.0m |
---|
1733 | # |
---|
1734 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
1735 | # Fourth value (index==3) is -6.50198 cm |
---|
1736 | |
---|
1737 | from coordinate_transforms.redfearn import redfearn |
---|
1738 | import os |
---|
1739 | fid1 = NetCDFFile('test_ha.nc','w') |
---|
1740 | fid2 = NetCDFFile('test_ua.nc','w') |
---|
1741 | fid3 = NetCDFFile('test_va.nc','w') |
---|
1742 | fid4 = NetCDFFile('test_e.nc','w') |
---|
1743 | |
---|
1744 | h1_list = [150.66667,150.83334,151.] |
---|
1745 | h2_list = [-34.5,-34.33333] |
---|
1746 | |
---|
1747 | long_name = 'LON' |
---|
1748 | lat_name = 'LAT' |
---|
1749 | |
---|
1750 | nx = 3 |
---|
1751 | ny = 2 |
---|
1752 | |
---|
1753 | for fid in [fid1,fid2,fid3]: |
---|
1754 | fid.createDimension(long_name,nx) |
---|
1755 | fid.createVariable(long_name,'d',(long_name,)) |
---|
1756 | fid.variables[long_name].point_spacing='uneven' |
---|
1757 | fid.variables[long_name].units='degrees_east' |
---|
1758 | fid.variables[long_name].assignValue(h1_list) |
---|
1759 | |
---|
1760 | fid.createDimension(lat_name,ny) |
---|
1761 | fid.createVariable(lat_name,'d',(lat_name,)) |
---|
1762 | fid.variables[lat_name].point_spacing='uneven' |
---|
1763 | fid.variables[lat_name].units='degrees_north' |
---|
1764 | fid.variables[lat_name].assignValue(h2_list) |
---|
1765 | |
---|
1766 | fid.createDimension('TIME',2) |
---|
1767 | fid.createVariable('TIME','d',('TIME',)) |
---|
1768 | fid.variables['TIME'].point_spacing='uneven' |
---|
1769 | fid.variables['TIME'].units='seconds' |
---|
1770 | fid.variables['TIME'].assignValue([0.,1.]) |
---|
1771 | if fid == fid3: break |
---|
1772 | |
---|
1773 | |
---|
1774 | for fid in [fid4]: |
---|
1775 | fid.createDimension(long_name,nx) |
---|
1776 | fid.createVariable(long_name,'d',(long_name,)) |
---|
1777 | fid.variables[long_name].point_spacing='uneven' |
---|
1778 | fid.variables[long_name].units='degrees_east' |
---|
1779 | fid.variables[long_name].assignValue(h1_list) |
---|
1780 | |
---|
1781 | fid.createDimension(lat_name,ny) |
---|
1782 | fid.createVariable(lat_name,'d',(lat_name,)) |
---|
1783 | fid.variables[lat_name].point_spacing='uneven' |
---|
1784 | fid.variables[lat_name].units='degrees_north' |
---|
1785 | fid.variables[lat_name].assignValue(h2_list) |
---|
1786 | |
---|
1787 | name = {} |
---|
1788 | name[fid1]='HA' |
---|
1789 | name[fid2]='UA' |
---|
1790 | name[fid3]='VA' |
---|
1791 | name[fid4]='ELEVATION' |
---|
1792 | |
---|
1793 | units = {} |
---|
1794 | units[fid1]='cm' |
---|
1795 | units[fid2]='cm/s' |
---|
1796 | units[fid3]='cm/s' |
---|
1797 | units[fid4]='m' |
---|
1798 | |
---|
1799 | values = {} |
---|
1800 | values[fid1]=[[[5., 10.,15.], [13.,18.,23.]],[[50.,100.,150.],[130.,180.,230.]]] |
---|
1801 | values[fid2]=[[[1., 2.,3.], [4.,5.,6.]],[[7.,8.,9.],[10.,11.,12.]]] |
---|
1802 | values[fid3]=[[[13., 12.,11.], [10.,9.,8.]],[[7.,6.,5.],[4.,3.,2.]]] |
---|
1803 | values[fid4]=[[-3000,-3100,-3200],[-4000,-5000,-6000]] |
---|
1804 | |
---|
1805 | for fid in [fid1,fid2,fid3]: |
---|
1806 | fid.createVariable(name[fid],'d',('TIME',lat_name,long_name)) |
---|
1807 | fid.variables[name[fid]].point_spacing='uneven' |
---|
1808 | fid.variables[name[fid]].units=units[fid] |
---|
1809 | fid.variables[name[fid]].assignValue(values[fid]) |
---|
1810 | fid.variables[name[fid]].missing_value = -99999999. |
---|
1811 | if fid == fid3: break |
---|
1812 | |
---|
1813 | for fid in [fid4]: |
---|
1814 | fid.createVariable(name[fid],'d',(lat_name,long_name)) |
---|
1815 | fid.variables[name[fid]].point_spacing='uneven' |
---|
1816 | fid.variables[name[fid]].units=units[fid] |
---|
1817 | fid.variables[name[fid]].assignValue(values[fid]) |
---|
1818 | fid.variables[name[fid]].missing_value = -99999999. |
---|
1819 | |
---|
1820 | |
---|
1821 | fid1.sync(); fid1.close() |
---|
1822 | fid2.sync(); fid2.close() |
---|
1823 | fid3.sync(); fid3.close() |
---|
1824 | fid4.sync(); fid4.close() |
---|
1825 | |
---|
1826 | fid1 = NetCDFFile('test_ha.nc','r') |
---|
1827 | fid2 = NetCDFFile('test_e.nc','r') |
---|
1828 | fid3 = NetCDFFile('test_va.nc','r') |
---|
1829 | |
---|
1830 | |
---|
1831 | first_amp = fid1.variables['HA'][:][0,0,0] |
---|
1832 | third_amp = fid1.variables['HA'][:][0,0,2] |
---|
1833 | first_elevation = fid2.variables['ELEVATION'][0,0] |
---|
1834 | third_elevation= fid2.variables['ELEVATION'][:][0,2] |
---|
1835 | first_speed = fid3.variables['VA'][0,0,0] |
---|
1836 | third_speed = fid3.variables['VA'][:][0,0,2] |
---|
1837 | |
---|
1838 | fid1.close() |
---|
1839 | fid2.close() |
---|
1840 | fid3.close() |
---|
1841 | |
---|
1842 | #Call conversion (with zero origin) |
---|
1843 | ferret2sww('test', verbose=False, |
---|
1844 | origin = (56, 0, 0)) |
---|
1845 | |
---|
1846 | os.remove('test_va.nc') |
---|
1847 | os.remove('test_ua.nc') |
---|
1848 | os.remove('test_ha.nc') |
---|
1849 | os.remove('test_e.nc') |
---|
1850 | |
---|
1851 | #Read output file 'test.sww' |
---|
1852 | fid = NetCDFFile('test.sww') |
---|
1853 | |
---|
1854 | |
---|
1855 | #Check first value |
---|
1856 | elevation = fid.variables['elevation'][:] |
---|
1857 | stage = fid.variables['stage'][:] |
---|
1858 | xmomentum = fid.variables['xmomentum'][:] |
---|
1859 | ymomentum = fid.variables['ymomentum'][:] |
---|
1860 | |
---|
1861 | #print ymomentum |
---|
1862 | first_height = first_amp/100 - first_elevation |
---|
1863 | third_height = third_amp/100 - third_elevation |
---|
1864 | first_momentum=first_speed*first_height/100 |
---|
1865 | third_momentum=third_speed*third_height/100 |
---|
1866 | |
---|
1867 | assert allclose(ymomentum[0][0],first_momentum) #Meters |
---|
1868 | assert allclose(ymomentum[0][2],third_momentum) #Meters |
---|
1869 | |
---|
1870 | fid.close() |
---|
1871 | |
---|
1872 | #Cleanup |
---|
1873 | os.remove('test.sww') |
---|
1874 | |
---|
1875 | |
---|
1876 | |
---|
1877 | |
---|
1878 | def test_ferret2sww_nz_origin(self): |
---|
1879 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1880 | from coordinate_transforms.redfearn import redfearn |
---|
1881 | |
---|
1882 | #Call conversion (with nonzero origin) |
---|
1883 | ferret2sww('small', verbose=False, |
---|
1884 | origin = (56, 100000, 200000)) |
---|
1885 | |
---|
1886 | |
---|
1887 | #Work out the UTM coordinates for first point |
---|
1888 | zone, e, n = redfearn(-34.5, 150.66667) |
---|
1889 | |
---|
1890 | #Read output file 'small.sww' |
---|
1891 | fid = NetCDFFile('small.sww', 'r') |
---|
1892 | |
---|
1893 | x = fid.variables['x'][:] |
---|
1894 | y = fid.variables['y'][:] |
---|
1895 | |
---|
1896 | #Check that first coordinate is correctly represented |
---|
1897 | assert allclose(x[0], e-100000) |
---|
1898 | assert allclose(y[0], n-200000) |
---|
1899 | |
---|
1900 | fid.close() |
---|
1901 | |
---|
1902 | #Cleanup |
---|
1903 | import os |
---|
1904 | os.remove('small.sww') |
---|
1905 | |
---|
1906 | |
---|
1907 | |
---|
1908 | def test_sww_extent(self): |
---|
1909 | """Not a test, rather a look at the sww format |
---|
1910 | """ |
---|
1911 | |
---|
1912 | import time, os |
---|
1913 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
1914 | from Scientific.IO.NetCDF import NetCDFFile |
---|
1915 | |
---|
1916 | self.domain.filename = 'datatest' + str(id(self)) |
---|
1917 | self.domain.format = 'sww' |
---|
1918 | self.domain.smooth = True |
---|
1919 | self.domain.reduction = mean |
---|
1920 | self.domain.set_datadir('.') |
---|
1921 | |
---|
1922 | |
---|
1923 | sww = get_dataobject(self.domain) |
---|
1924 | sww.store_connectivity() |
---|
1925 | sww.store_timestep('stage') |
---|
1926 | self.domain.time = 2. |
---|
1927 | |
---|
1928 | #Modify stage at second timestep |
---|
1929 | stage = self.domain.quantities['stage'].vertex_values |
---|
1930 | self.domain.set_quantity('stage', stage/2) |
---|
1931 | |
---|
1932 | sww.store_timestep('stage') |
---|
1933 | |
---|
1934 | file_and_extension_name = self.domain.filename + ".sww" |
---|
1935 | #print "file_and_extension_name",file_and_extension_name |
---|
1936 | [xmin, xmax, ymin, ymax, stagemin, stagemax] = \ |
---|
1937 | extent_sww(file_and_extension_name ) |
---|
1938 | |
---|
1939 | assert allclose(xmin, 0.0) |
---|
1940 | assert allclose(xmax, 1.0) |
---|
1941 | assert allclose(ymin, 0.0) |
---|
1942 | assert allclose(ymax, 1.0) |
---|
1943 | assert allclose(stagemin, -0.85) |
---|
1944 | assert allclose(stagemax, 0.15) |
---|
1945 | |
---|
1946 | |
---|
1947 | #Cleanup |
---|
1948 | os.remove(sww.filename) |
---|
1949 | |
---|
1950 | |
---|
1951 | |
---|
1952 | def test_sww2domain(self): |
---|
1953 | ################################################ |
---|
1954 | #Create a test domain, and evolve and save it. |
---|
1955 | ################################################ |
---|
1956 | from mesh_factory import rectangular |
---|
1957 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
1958 | Constant_height, Time_boundary, Transmissive_boundary |
---|
1959 | from Numeric import array |
---|
1960 | |
---|
1961 | #Create basic mesh |
---|
1962 | |
---|
1963 | yiel=0.01 |
---|
1964 | points, vertices, boundary = rectangular(10,10) |
---|
1965 | |
---|
1966 | #Create shallow water domain |
---|
1967 | domain = Domain(points, vertices, boundary) |
---|
1968 | domain.geo_reference = Geo_reference(56,11,11) |
---|
1969 | domain.smooth = False |
---|
1970 | domain.visualise = False |
---|
1971 | domain.store = True |
---|
1972 | domain.filename = 'bedslope' |
---|
1973 | domain.default_order=2 |
---|
1974 | #Bed-slope and friction |
---|
1975 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
1976 | domain.set_quantity('friction', 0.1) |
---|
1977 | # Boundary conditions |
---|
1978 | from math import sin, pi |
---|
1979 | Br = Reflective_boundary(domain) |
---|
1980 | Bt = Transmissive_boundary(domain) |
---|
1981 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
1982 | Bw = Time_boundary(domain=domain, |
---|
1983 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
1984 | |
---|
1985 | #domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1986 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
1987 | |
---|
1988 | domain.quantities_to_be_stored.extend(['xmomentum','ymomentum']) |
---|
1989 | #Initial condition |
---|
1990 | h = 0.05 |
---|
1991 | elevation = domain.quantities['elevation'].vertex_values |
---|
1992 | domain.set_quantity('stage', elevation + h) |
---|
1993 | #elevation = domain.get_quantity('elevation') |
---|
1994 | #domain.set_quantity('stage', elevation + h) |
---|
1995 | |
---|
1996 | domain.check_integrity() |
---|
1997 | #Evolution |
---|
1998 | for t in domain.evolve(yieldstep = yiel, finaltime = 0.05): |
---|
1999 | # domain.write_time() |
---|
2000 | pass |
---|
2001 | |
---|
2002 | |
---|
2003 | ########################################## |
---|
2004 | #Import the example's file as a new domain |
---|
2005 | ########################################## |
---|
2006 | from data_manager import sww2domain |
---|
2007 | from Numeric import allclose |
---|
2008 | import os |
---|
2009 | |
---|
2010 | filename = domain.datadir+os.sep+domain.filename+'.sww' |
---|
2011 | domain2 = sww2domain(filename,None,fail_if_NaN=False,verbose = False) |
---|
2012 | #points, vertices, boundary = rectangular(15,15) |
---|
2013 | #domain2.boundary = boundary |
---|
2014 | ################### |
---|
2015 | ##NOW TEST IT!!! |
---|
2016 | ################### |
---|
2017 | |
---|
2018 | bits = ['vertex_coordinates'] |
---|
2019 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
2020 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
2021 | bits.append('get_quantity("%s")'%quantity) |
---|
2022 | |
---|
2023 | for bit in bits: |
---|
2024 | #print 'testing that domain.'+bit+' has been restored' |
---|
2025 | #print bit |
---|
2026 | #print 'done' |
---|
2027 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
2028 | |
---|
2029 | ###################################### |
---|
2030 | #Now evolve them both, just to be sure |
---|
2031 | ######################################x |
---|
2032 | visualise = False |
---|
2033 | #visualise = True |
---|
2034 | domain.visualise = visualise |
---|
2035 | domain.time = 0. |
---|
2036 | from time import sleep |
---|
2037 | |
---|
2038 | final = .1 |
---|
2039 | domain.set_quantity('friction', 0.1) |
---|
2040 | domain.store = False |
---|
2041 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
2042 | |
---|
2043 | |
---|
2044 | for t in domain.evolve(yieldstep = yiel, finaltime = final): |
---|
2045 | if visualise: sleep(1.) |
---|
2046 | #domain.write_time() |
---|
2047 | pass |
---|
2048 | |
---|
2049 | final = final - (domain2.starttime-domain.starttime) |
---|
2050 | #BUT since domain1 gets time hacked back to 0: |
---|
2051 | final = final + (domain2.starttime-domain.starttime) |
---|
2052 | |
---|
2053 | domain2.smooth = False |
---|
2054 | domain2.visualise = visualise |
---|
2055 | domain2.store = False |
---|
2056 | domain2.default_order=2 |
---|
2057 | domain2.set_quantity('friction', 0.1) |
---|
2058 | #Bed-slope and friction |
---|
2059 | # Boundary conditions |
---|
2060 | Bd2=Dirichlet_boundary([0.2,0.,0.]) |
---|
2061 | domain2.boundary = domain.boundary |
---|
2062 | #print 'domain2.boundary' |
---|
2063 | #print domain2.boundary |
---|
2064 | domain2.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
2065 | #domain2.set_boundary({'exterior': Bd}) |
---|
2066 | |
---|
2067 | domain2.check_integrity() |
---|
2068 | |
---|
2069 | for t in domain2.evolve(yieldstep = yiel, finaltime = final): |
---|
2070 | if visualise: sleep(1.) |
---|
2071 | #domain2.write_time() |
---|
2072 | pass |
---|
2073 | |
---|
2074 | ################### |
---|
2075 | ##NOW TEST IT!!! |
---|
2076 | ################## |
---|
2077 | |
---|
2078 | bits = [ 'vertex_coordinates'] |
---|
2079 | |
---|
2080 | for quantity in ['elevation','xmomentum','ymomentum']:#+domain.quantities_to_be_stored: |
---|
2081 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
2082 | bits.append('get_quantity("%s")'%quantity) |
---|
2083 | |
---|
2084 | for bit in bits: |
---|
2085 | #print bit |
---|
2086 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
2087 | |
---|
2088 | |
---|
2089 | def test_sww2domain2(self): |
---|
2090 | ################################################################## |
---|
2091 | #Same as previous test, but this checks how NaNs are handled. |
---|
2092 | ################################################################## |
---|
2093 | |
---|
2094 | |
---|
2095 | from mesh_factory import rectangular |
---|
2096 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
2097 | Constant_height, Time_boundary, Transmissive_boundary |
---|
2098 | from Numeric import array |
---|
2099 | |
---|
2100 | #Create basic mesh |
---|
2101 | points, vertices, boundary = rectangular(2,2) |
---|
2102 | |
---|
2103 | #Create shallow water domain |
---|
2104 | domain = Domain(points, vertices, boundary) |
---|
2105 | domain.smooth = False |
---|
2106 | domain.visualise = False |
---|
2107 | domain.store = True |
---|
2108 | domain.filename = 'bedslope' |
---|
2109 | domain.default_order=2 |
---|
2110 | domain.quantities_to_be_stored=['stage'] |
---|
2111 | |
---|
2112 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
2113 | domain.set_quantity('friction', 0.1) |
---|
2114 | |
---|
2115 | from math import sin, pi |
---|
2116 | Br = Reflective_boundary(domain) |
---|
2117 | Bt = Transmissive_boundary(domain) |
---|
2118 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
2119 | Bw = Time_boundary(domain=domain, |
---|
2120 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
2121 | |
---|
2122 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
2123 | |
---|
2124 | h = 0.05 |
---|
2125 | elevation = domain.quantities['elevation'].vertex_values |
---|
2126 | domain.set_quantity('stage', elevation + h) |
---|
2127 | |
---|
2128 | domain.check_integrity() |
---|
2129 | |
---|
2130 | for t in domain.evolve(yieldstep = 1, finaltime = 2.0): |
---|
2131 | pass |
---|
2132 | #domain.write_time() |
---|
2133 | |
---|
2134 | |
---|
2135 | |
---|
2136 | ################################## |
---|
2137 | #Import the file as a new domain |
---|
2138 | ################################## |
---|
2139 | from data_manager import sww2domain |
---|
2140 | from Numeric import allclose |
---|
2141 | import os |
---|
2142 | |
---|
2143 | filename = domain.datadir+os.sep+domain.filename+'.sww' |
---|
2144 | |
---|
2145 | #Fail because NaNs are present |
---|
2146 | try: |
---|
2147 | domain2 = sww2domain(filename,boundary,fail_if_NaN=True,verbose=False) |
---|
2148 | assert True == False |
---|
2149 | except: |
---|
2150 | #Now import it, filling NaNs to be 0 |
---|
2151 | filler = 0 |
---|
2152 | domain2 = sww2domain(filename,None,fail_if_NaN=False,NaN_filler = filler,verbose=False) |
---|
2153 | bits = [ 'geo_reference.get_xllcorner()', |
---|
2154 | 'geo_reference.get_yllcorner()', |
---|
2155 | 'vertex_coordinates'] |
---|
2156 | |
---|
2157 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
2158 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
2159 | bits.append('get_quantity("%s")'%quantity) |
---|
2160 | |
---|
2161 | for bit in bits: |
---|
2162 | # print 'testing that domain.'+bit+' has been restored' |
---|
2163 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
2164 | |
---|
2165 | assert max(max(domain2.get_quantity('xmomentum')))==filler |
---|
2166 | assert min(min(domain2.get_quantity('xmomentum')))==filler |
---|
2167 | assert max(max(domain2.get_quantity('ymomentum')))==filler |
---|
2168 | assert min(min(domain2.get_quantity('ymomentum')))==filler |
---|
2169 | |
---|
2170 | #print 'passed' |
---|
2171 | |
---|
2172 | #cleanup |
---|
2173 | #import os |
---|
2174 | #os.remove(domain.datadir+'/'+domain.filename+'.sww') |
---|
2175 | |
---|
2176 | |
---|
2177 | #def test_weed(self): |
---|
2178 | from data_manager import weed |
---|
2179 | |
---|
2180 | coordinates1 = [[0.,0.],[1.,0.],[1.,1.],[1.,0.],[2.,0.],[1.,1.]] |
---|
2181 | volumes1 = [[0,1,2],[3,4,5]] |
---|
2182 | boundary1= {(0,1): 'external',(1,2): 'not external',(2,0): 'external',(3,4): 'external',(4,5): 'external',(5,3): 'not external'} |
---|
2183 | coordinates2,volumes2,boundary2=weed(coordinates1,volumes1,boundary1) |
---|
2184 | |
---|
2185 | points2 = {(0.,0.):None,(1.,0.):None,(1.,1.):None,(2.,0.):None} |
---|
2186 | |
---|
2187 | assert len(points2)==len(coordinates2) |
---|
2188 | for i in range(len(coordinates2)): |
---|
2189 | coordinate = tuple(coordinates2[i]) |
---|
2190 | assert points2.has_key(coordinate) |
---|
2191 | points2[coordinate]=i |
---|
2192 | |
---|
2193 | for triangle in volumes1: |
---|
2194 | for coordinate in triangle: |
---|
2195 | assert coordinates2[points2[tuple(coordinates1[coordinate])]][0]==coordinates1[coordinate][0] |
---|
2196 | assert coordinates2[points2[tuple(coordinates1[coordinate])]][1]==coordinates1[coordinate][1] |
---|
2197 | |
---|
2198 | |
---|
2199 | #FIXME This fails - smooth makes the comparism too hard for allclose |
---|
2200 | def ztest_sww2domain3(self): |
---|
2201 | ################################################ |
---|
2202 | #DOMAIN.SMOOTH = TRUE !!!!!!!!!!!!!!!!!!!!!!!!!! |
---|
2203 | ################################################ |
---|
2204 | from mesh_factory import rectangular |
---|
2205 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
2206 | Constant_height, Time_boundary, Transmissive_boundary |
---|
2207 | from Numeric import array |
---|
2208 | #Create basic mesh |
---|
2209 | |
---|
2210 | yiel=0.01 |
---|
2211 | points, vertices, boundary = rectangular(10,10) |
---|
2212 | |
---|
2213 | #Create shallow water domain |
---|
2214 | domain = Domain(points, vertices, boundary) |
---|
2215 | domain.geo_reference = Geo_reference(56,11,11) |
---|
2216 | domain.smooth = True |
---|
2217 | domain.visualise = False |
---|
2218 | domain.store = True |
---|
2219 | domain.filename = 'bedslope' |
---|
2220 | domain.default_order=2 |
---|
2221 | #Bed-slope and friction |
---|
2222 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
2223 | domain.set_quantity('friction', 0.1) |
---|
2224 | # Boundary conditions |
---|
2225 | from math import sin, pi |
---|
2226 | Br = Reflective_boundary(domain) |
---|
2227 | Bt = Transmissive_boundary(domain) |
---|
2228 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
2229 | Bw = Time_boundary(domain=domain, |
---|
2230 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
2231 | |
---|
2232 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
2233 | |
---|
2234 | domain.quantities_to_be_stored.extend(['xmomentum','ymomentum']) |
---|
2235 | #Initial condition |
---|
2236 | h = 0.05 |
---|
2237 | elevation = domain.quantities['elevation'].vertex_values |
---|
2238 | domain.set_quantity('stage', elevation + h) |
---|
2239 | #elevation = domain.get_quantity('elevation') |
---|
2240 | #domain.set_quantity('stage', elevation + h) |
---|
2241 | |
---|
2242 | domain.check_integrity() |
---|
2243 | #Evolution |
---|
2244 | for t in domain.evolve(yieldstep = yiel, finaltime = 0.05): |
---|
2245 | # domain.write_time() |
---|
2246 | pass |
---|
2247 | |
---|
2248 | |
---|
2249 | ########################################## |
---|
2250 | #Import the example's file as a new domain |
---|
2251 | ########################################## |
---|
2252 | from data_manager import sww2domain |
---|
2253 | from Numeric import allclose |
---|
2254 | import os |
---|
2255 | |
---|
2256 | filename = domain.datadir+os.sep+domain.filename+'.sww' |
---|
2257 | domain2 = sww2domain(filename,None,fail_if_NaN=False,verbose = False) |
---|
2258 | #points, vertices, boundary = rectangular(15,15) |
---|
2259 | #domain2.boundary = boundary |
---|
2260 | ################### |
---|
2261 | ##NOW TEST IT!!! |
---|
2262 | ################### |
---|
2263 | |
---|
2264 | #FIXME smooth domain so that they can be compared |
---|
2265 | |
---|
2266 | |
---|
2267 | bits = []#'vertex_coordinates'] |
---|
2268 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
2269 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
2270 | #bits.append('get_quantity("%s")'%quantity) |
---|
2271 | |
---|
2272 | for bit in bits: |
---|
2273 | #print 'testing that domain.'+bit+' has been restored' |
---|
2274 | #print bit |
---|
2275 | #print 'done' |
---|
2276 | #print ('domain.'+bit), eval('domain.'+bit) |
---|
2277 | #print ('domain2.'+bit), eval('domain2.'+bit) |
---|
2278 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit),rtol=1.0e-1,atol=1.e-3) |
---|
2279 | pass |
---|
2280 | |
---|
2281 | ###################################### |
---|
2282 | #Now evolve them both, just to be sure |
---|
2283 | ######################################x |
---|
2284 | visualise = False |
---|
2285 | visualise = True |
---|
2286 | domain.visualise = visualise |
---|
2287 | domain.time = 0. |
---|
2288 | from time import sleep |
---|
2289 | |
---|
2290 | final = .5 |
---|
2291 | domain.set_quantity('friction', 0.1) |
---|
2292 | domain.store = False |
---|
2293 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Br}) |
---|
2294 | |
---|
2295 | for t in domain.evolve(yieldstep = yiel, finaltime = final): |
---|
2296 | if visualise: sleep(.03) |
---|
2297 | #domain.write_time() |
---|
2298 | pass |
---|
2299 | |
---|
2300 | domain2.smooth = True |
---|
2301 | domain2.visualise = visualise |
---|
2302 | domain2.store = False |
---|
2303 | domain2.default_order=2 |
---|
2304 | domain2.set_quantity('friction', 0.1) |
---|
2305 | #Bed-slope and friction |
---|
2306 | # Boundary conditions |
---|
2307 | Bd2=Dirichlet_boundary([0.2,0.,0.]) |
---|
2308 | Br2 = Reflective_boundary(domain2) |
---|
2309 | domain2.boundary = domain.boundary |
---|
2310 | #print 'domain2.boundary' |
---|
2311 | #print domain2.boundary |
---|
2312 | domain2.set_boundary({'left': Bd2, 'right': Bd2, 'top': Bd2, 'bottom': Br2}) |
---|
2313 | #domain2.boundary = domain.boundary |
---|
2314 | #domain2.set_boundary({'exterior': Bd}) |
---|
2315 | |
---|
2316 | domain2.check_integrity() |
---|
2317 | |
---|
2318 | for t in domain2.evolve(yieldstep = yiel, finaltime = final): |
---|
2319 | if visualise: sleep(.03) |
---|
2320 | #domain2.write_time() |
---|
2321 | pass |
---|
2322 | |
---|
2323 | ################### |
---|
2324 | ##NOW TEST IT!!! |
---|
2325 | ################## |
---|
2326 | |
---|
2327 | bits = [ 'vertex_coordinates'] |
---|
2328 | |
---|
2329 | for quantity in ['elevation','xmomentum','ymomentum']:#+domain.quantities_to_be_stored: |
---|
2330 | #bits.append('quantities["%s"].get_integral()'%quantity) |
---|
2331 | bits.append('get_quantity("%s")'%quantity) |
---|
2332 | |
---|
2333 | for bit in bits: |
---|
2334 | print bit |
---|
2335 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
2336 | |
---|
2337 | |
---|
2338 | def test_decimate_dem(self): |
---|
2339 | """Test decimation of dem file |
---|
2340 | """ |
---|
2341 | |
---|
2342 | import os |
---|
2343 | from Numeric import ones, allclose, Float, arange |
---|
2344 | from Scientific.IO.NetCDF import NetCDFFile |
---|
2345 | |
---|
2346 | #Write test dem file |
---|
2347 | root = 'decdemtest' |
---|
2348 | |
---|
2349 | filename = root + '.dem' |
---|
2350 | fid = NetCDFFile(filename, 'w') |
---|
2351 | |
---|
2352 | fid.institution = 'Geoscience Australia' |
---|
2353 | fid.description = 'NetCDF DEM format for compact and portable ' +\ |
---|
2354 | 'storage of spatial point data' |
---|
2355 | |
---|
2356 | nrows = 15 |
---|
2357 | ncols = 18 |
---|
2358 | |
---|
2359 | fid.ncols = ncols |
---|
2360 | fid.nrows = nrows |
---|
2361 | fid.xllcorner = 2000.5 |
---|
2362 | fid.yllcorner = 3000.5 |
---|
2363 | fid.cellsize = 25 |
---|
2364 | fid.NODATA_value = -9999 |
---|
2365 | |
---|
2366 | fid.zone = 56 |
---|
2367 | fid.false_easting = 0.0 |
---|
2368 | fid.false_northing = 0.0 |
---|
2369 | fid.projection = 'UTM' |
---|
2370 | fid.datum = 'WGS84' |
---|
2371 | fid.units = 'METERS' |
---|
2372 | |
---|
2373 | fid.createDimension('number_of_points', nrows*ncols) |
---|
2374 | |
---|
2375 | fid.createVariable('elevation', Float, ('number_of_points',)) |
---|
2376 | |
---|
2377 | elevation = fid.variables['elevation'] |
---|
2378 | |
---|
2379 | elevation[:] = (arange(nrows*ncols)) |
---|
2380 | |
---|
2381 | fid.close() |
---|
2382 | |
---|
2383 | #generate the elevation values expected in the decimated file |
---|
2384 | ref_elevation = [( 0+ 1+ 2+ 18+ 19+ 20+ 36+ 37+ 38) / 9.0, |
---|
2385 | ( 4+ 5+ 6+ 22+ 23+ 24+ 40+ 41+ 42) / 9.0, |
---|
2386 | ( 8+ 9+ 10+ 26+ 27+ 28+ 44+ 45+ 46) / 9.0, |
---|
2387 | ( 12+ 13+ 14+ 30+ 31+ 32+ 48+ 49+ 50) / 9.0, |
---|
2388 | ( 72+ 73+ 74+ 90+ 91+ 92+108+109+110) / 9.0, |
---|
2389 | ( 76+ 77+ 78+ 94+ 95+ 96+112+113+114) / 9.0, |
---|
2390 | ( 80+ 81+ 82+ 98+ 99+100+116+117+118) / 9.0, |
---|
2391 | ( 84+ 85+ 86+102+103+104+120+121+122) / 9.0, |
---|
2392 | (144+145+146+162+163+164+180+181+182) / 9.0, |
---|
2393 | (148+149+150+166+167+168+184+185+186) / 9.0, |
---|
2394 | (152+153+154+170+171+172+188+189+190) / 9.0, |
---|
2395 | (156+157+158+174+175+176+192+193+194) / 9.0, |
---|
2396 | (216+217+218+234+235+236+252+253+254) / 9.0, |
---|
2397 | (220+221+222+238+239+240+256+257+258) / 9.0, |
---|
2398 | (224+225+226+242+243+244+260+261+262) / 9.0, |
---|
2399 | (228+229+230+246+247+248+264+265+266) / 9.0] |
---|
2400 | |
---|
2401 | #generate a stencil for computing the decimated values |
---|
2402 | stencil = ones((3,3), Float) / 9.0 |
---|
2403 | |
---|
2404 | decimate_dem(root, stencil=stencil, cellsize_new=100) |
---|
2405 | |
---|
2406 | #Open decimated NetCDF file |
---|
2407 | fid = NetCDFFile(root + '_100.dem', 'r') |
---|
2408 | |
---|
2409 | # Get decimated elevation |
---|
2410 | elevation = fid.variables['elevation'] |
---|
2411 | |
---|
2412 | #Check values |
---|
2413 | assert allclose(elevation, ref_elevation) |
---|
2414 | |
---|
2415 | #Cleanup |
---|
2416 | fid.close() |
---|
2417 | |
---|
2418 | os.remove(root + '.dem') |
---|
2419 | os.remove(root + '_100.dem') |
---|
2420 | |
---|
2421 | def test_decimate_dem_NODATA(self): |
---|
2422 | """Test decimation of dem file that includes NODATA values |
---|
2423 | """ |
---|
2424 | |
---|
2425 | import os |
---|
2426 | from Numeric import ones, allclose, Float, arange, reshape |
---|
2427 | from Scientific.IO.NetCDF import NetCDFFile |
---|
2428 | |
---|
2429 | #Write test dem file |
---|
2430 | root = 'decdemtest' |
---|
2431 | |
---|
2432 | filename = root + '.dem' |
---|
2433 | fid = NetCDFFile(filename, 'w') |
---|
2434 | |
---|
2435 | fid.institution = 'Geoscience Australia' |
---|
2436 | fid.description = 'NetCDF DEM format for compact and portable ' +\ |
---|
2437 | 'storage of spatial point data' |
---|
2438 | |
---|
2439 | nrows = 15 |
---|
2440 | ncols = 18 |
---|
2441 | NODATA_value = -9999 |
---|
2442 | |
---|
2443 | fid.ncols = ncols |
---|
2444 | fid.nrows = nrows |
---|
2445 | fid.xllcorner = 2000.5 |
---|
2446 | fid.yllcorner = 3000.5 |
---|
2447 | fid.cellsize = 25 |
---|
2448 | fid.NODATA_value = NODATA_value |
---|
2449 | |
---|
2450 | fid.zone = 56 |
---|
2451 | fid.false_easting = 0.0 |
---|
2452 | fid.false_northing = 0.0 |
---|
2453 | fid.projection = 'UTM' |
---|
2454 | fid.datum = 'WGS84' |
---|
2455 | fid.units = 'METERS' |
---|
2456 | |
---|
2457 | fid.createDimension('number_of_points', nrows*ncols) |
---|
2458 | |
---|
2459 | fid.createVariable('elevation', Float, ('number_of_points',)) |
---|
2460 | |
---|
2461 | elevation = fid.variables['elevation'] |
---|
2462 | |
---|
2463 | #generate initial elevation values |
---|
2464 | elevation_tmp = (arange(nrows*ncols)) |
---|
2465 | #add some NODATA values |
---|
2466 | elevation_tmp[0] = NODATA_value |
---|
2467 | elevation_tmp[95] = NODATA_value |
---|
2468 | elevation_tmp[188] = NODATA_value |
---|
2469 | elevation_tmp[189] = NODATA_value |
---|
2470 | elevation_tmp[190] = NODATA_value |
---|
2471 | elevation_tmp[209] = NODATA_value |
---|
2472 | elevation_tmp[252] = NODATA_value |
---|
2473 | |
---|
2474 | elevation[:] = elevation_tmp |
---|
2475 | |
---|
2476 | fid.close() |
---|
2477 | |
---|
2478 | #generate the elevation values expected in the decimated file |
---|
2479 | ref_elevation = [NODATA_value, |
---|
2480 | ( 4+ 5+ 6+ 22+ 23+ 24+ 40+ 41+ 42) / 9.0, |
---|
2481 | ( 8+ 9+ 10+ 26+ 27+ 28+ 44+ 45+ 46) / 9.0, |
---|
2482 | ( 12+ 13+ 14+ 30+ 31+ 32+ 48+ 49+ 50) / 9.0, |
---|
2483 | ( 72+ 73+ 74+ 90+ 91+ 92+108+109+110) / 9.0, |
---|
2484 | NODATA_value, |
---|
2485 | ( 80+ 81+ 82+ 98+ 99+100+116+117+118) / 9.0, |
---|
2486 | ( 84+ 85+ 86+102+103+104+120+121+122) / 9.0, |
---|
2487 | (144+145+146+162+163+164+180+181+182) / 9.0, |
---|
2488 | (148+149+150+166+167+168+184+185+186) / 9.0, |
---|
2489 | NODATA_value, |
---|
2490 | (156+157+158+174+175+176+192+193+194) / 9.0, |
---|
2491 | NODATA_value, |
---|
2492 | (220+221+222+238+239+240+256+257+258) / 9.0, |
---|
2493 | (224+225+226+242+243+244+260+261+262) / 9.0, |
---|
2494 | (228+229+230+246+247+248+264+265+266) / 9.0] |
---|
2495 | |
---|
2496 | #generate a stencil for computing the decimated values |
---|
2497 | stencil = ones((3,3), Float) / 9.0 |
---|
2498 | |
---|
2499 | decimate_dem(root, stencil=stencil, cellsize_new=100) |
---|
2500 | |
---|
2501 | #Open decimated NetCDF file |
---|
2502 | fid = NetCDFFile(root + '_100.dem', 'r') |
---|
2503 | |
---|
2504 | # Get decimated elevation |
---|
2505 | elevation = fid.variables['elevation'] |
---|
2506 | |
---|
2507 | #Check values |
---|
2508 | assert allclose(elevation, ref_elevation) |
---|
2509 | |
---|
2510 | #Cleanup |
---|
2511 | fid.close() |
---|
2512 | |
---|
2513 | os.remove(root + '.dem') |
---|
2514 | os.remove(root + '_100.dem') |
---|
2515 | |
---|
2516 | def xxxtestz_sww2ers_real(self): |
---|
2517 | """Test that sww information can be converted correctly to asc/prj |
---|
2518 | format readable by e.g. ArcView |
---|
2519 | """ |
---|
2520 | |
---|
2521 | import time, os |
---|
2522 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
2523 | from Scientific.IO.NetCDF import NetCDFFile |
---|
2524 | |
---|
2525 | # the memory optimised least squares |
---|
2526 | # cellsize = 20, # this one seems to hang |
---|
2527 | # cellsize = 200000, # Ran 1 test in 269.703s |
---|
2528 | #Ran 1 test in 267.344s |
---|
2529 | # cellsize = 20000, # Ran 1 test in 460.922s |
---|
2530 | # cellsize = 2000 #Ran 1 test in 5340.250s |
---|
2531 | # cellsize = 200 #Ran 1 test in |
---|
2532 | |
---|
2533 | # not optimised |
---|
2534 | # seems to hang |
---|
2535 | # cellsize = 2000 # Ran 1 test in 5334.563s |
---|
2536 | #Export to ascii/prj files |
---|
2537 | sww2dem('karratha_100m', |
---|
2538 | quantity = 'depth', |
---|
2539 | cellsize = 200000, |
---|
2540 | verbose = True) |
---|
2541 | |
---|
2542 | |
---|
2543 | |
---|
2544 | |
---|
2545 | #------------------------------------------------------------- |
---|
2546 | if __name__ == "__main__": |
---|
2547 | suite = unittest.makeSuite(Test_Data_Manager,'test') |
---|
2548 | #suite = unittest.makeSuite(Test_Data_Manager,'xxxtest') |
---|
2549 | #suite = unittest.makeSuite(Test_Data_Manager,'test_sww2dem_boundingbox') |
---|
2550 | #suite = unittest.makeSuite(Test_Data_Manager,'test_dem2pts_bounding_box') |
---|
2551 | #suite = unittest.makeSuite(Test_Data_Manager,'test_decimate_dem') |
---|
2552 | #suite = unittest.makeSuite(Test_Data_Manager,'test_decimate_dem_NODATA') |
---|
2553 | runner = unittest.TextTestRunner() |
---|
2554 | runner.run(suite) |
---|