[1360] | 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 | |
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| 21 | #Create basic mesh |
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| 22 | points, vertices, boundary = rectangular(2, 2) |
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| 23 | |
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| 24 | #Create shallow water domain |
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| 25 | domain = Domain(points, vertices, boundary) |
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| 26 | domain.default_order=2 |
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| 27 | |
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| 28 | |
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| 29 | #Set some field values |
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| 30 | domain.set_quantity('elevation', lambda x,y: -x) |
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| 31 | domain.set_quantity('friction', 0.03) |
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| 32 | |
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| 33 | |
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| 34 | ###################### |
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| 35 | # Boundary conditions |
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| 36 | B = Transmissive_boundary(domain) |
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| 37 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
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| 38 | |
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| 39 | |
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| 40 | ###################### |
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| 41 | #Initial condition - with jumps |
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| 42 | |
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| 43 | |
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| 44 | bed = domain.quantities['elevation'].vertex_values |
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| 45 | stage = zeros(bed.shape, Float) |
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| 46 | |
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| 47 | h = 0.3 |
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| 48 | for i in range(stage.shape[0]): |
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| 49 | if i % 2 == 0: |
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| 50 | stage[i,:] = bed[i,:] + h |
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| 51 | else: |
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| 52 | stage[i,:] = bed[i,:] |
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| 53 | |
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| 54 | domain.set_quantity('stage', stage) |
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| 55 | self.initial_stage = copy.copy(domain.quantities['stage'].vertex_values) |
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| 56 | |
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| 57 | domain.distribute_to_vertices_and_edges() |
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| 58 | |
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| 59 | |
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| 60 | self.domain = domain |
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| 61 | |
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| 62 | C = domain.get_vertex_coordinates() |
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| 63 | self.X = C[:,0:6:2].copy() |
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| 64 | self.Y = C[:,1:6:2].copy() |
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| 65 | |
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| 66 | self.F = bed |
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| 67 | |
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| 68 | |
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| 69 | def tearDown(self): |
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| 70 | pass |
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| 71 | |
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| 72 | |
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| 73 | |
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| 74 | |
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| 75 | # def test_xya(self): |
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| 76 | # import os |
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| 77 | # from Numeric import concatenate |
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| 78 | |
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| 79 | # import time, os |
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| 80 | # from Numeric import array, zeros, allclose, Float, concatenate |
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| 81 | |
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| 82 | # domain = self.domain |
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| 83 | |
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| 84 | # domain.filename = 'datatest' + str(time.time()) |
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| 85 | # domain.format = 'xya' |
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| 86 | # domain.smooth = True |
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| 87 | |
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| 88 | # xya = get_dataobject(self.domain) |
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| 89 | # xya.store_all() |
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| 90 | |
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| 91 | |
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| 92 | # #Read back |
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| 93 | # file = open(xya.filename) |
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| 94 | # lFile = file.read().split('\n') |
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| 95 | # lFile = lFile[:-1] |
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| 96 | |
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| 97 | # file.close() |
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| 98 | # os.remove(xya.filename) |
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| 99 | |
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| 100 | # #Check contents |
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| 101 | # if domain.smooth: |
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| 102 | # self.failUnless(lFile[0] == '9 3 # <vertex #> <x> <y> [attributes]') |
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| 103 | # else: |
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| 104 | # self.failUnless(lFile[0] == '24 3 # <vertex #> <x> <y> [attributes]') |
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| 105 | |
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| 106 | # #Get smoothed field values with X and Y |
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| 107 | # X,Y,F,V = domain.get_vertex_values(xy=True, value_array='field_values', |
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| 108 | # indices = (0,1), precision = Float) |
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| 109 | |
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| 110 | |
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| 111 | # Q,V = domain.get_vertex_values(xy=False, value_array='conserved_quantities', |
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| 112 | # indices = (0,), precision = Float) |
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| 113 | |
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| 114 | |
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| 115 | |
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| 116 | # for i, line in enumerate(lFile[1:]): |
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| 117 | # fields = line.split() |
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| 118 | |
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| 119 | # assert len(fields) == 5 |
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| 120 | |
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| 121 | # assert allclose(float(fields[0]), X[i]) |
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| 122 | # assert allclose(float(fields[1]), Y[i]) |
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| 123 | # assert allclose(float(fields[2]), F[i,0]) |
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| 124 | # assert allclose(float(fields[3]), Q[i,0]) |
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| 125 | # assert allclose(float(fields[4]), F[i,1]) |
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| 126 | |
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| 127 | |
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| 128 | |
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| 129 | |
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| 130 | def test_sww_constant(self): |
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| 131 | """Test that constant sww information can be written correctly |
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| 132 | (non smooth) |
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| 133 | """ |
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| 134 | |
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| 135 | import time, os |
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| 136 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 137 | from Scientific.IO.NetCDF import NetCDFFile |
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| 138 | |
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| 139 | self.domain.filename = 'datatest' + str(id(self)) |
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| 140 | self.domain.format = 'sww' |
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| 141 | self.domain.smooth = False |
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| 142 | |
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| 143 | sww = get_dataobject(self.domain) |
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| 144 | sww.store_connectivity() |
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| 145 | |
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| 146 | #Check contents |
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| 147 | #Get NetCDF |
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| 148 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 149 | |
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| 150 | # Get the variables |
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| 151 | x = fid.variables['x'] |
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| 152 | y = fid.variables['y'] |
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| 153 | z = fid.variables['elevation'] |
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| 154 | |
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| 155 | volumes = fid.variables['volumes'] |
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| 156 | |
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| 157 | |
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| 158 | assert allclose (x[:], self.X.flat) |
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| 159 | assert allclose (y[:], self.Y.flat) |
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| 160 | assert allclose (z[:], self.F.flat) |
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| 161 | |
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| 162 | V = volumes |
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| 163 | |
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| 164 | P = len(self.domain) |
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| 165 | for k in range(P): |
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| 166 | assert V[k, 0] == 3*k |
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| 167 | assert V[k, 1] == 3*k+1 |
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| 168 | assert V[k, 2] == 3*k+2 |
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| 169 | |
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| 170 | |
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| 171 | fid.close() |
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| 172 | |
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| 173 | #Cleanup |
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| 174 | os.remove(sww.filename) |
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| 175 | |
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| 176 | |
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| 177 | def test_sww_constant_smooth(self): |
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| 178 | """Test that constant sww information can be written correctly |
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| 179 | (non smooth) |
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| 180 | """ |
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| 181 | |
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| 182 | import time, os |
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| 183 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 184 | from Scientific.IO.NetCDF import NetCDFFile |
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| 185 | |
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| 186 | self.domain.filename = 'datatest' + str(id(self)) |
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| 187 | self.domain.format = 'sww' |
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| 188 | self.domain.smooth = True |
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| 189 | |
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| 190 | sww = get_dataobject(self.domain) |
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| 191 | sww.store_connectivity() |
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| 192 | |
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| 193 | #Check contents |
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| 194 | #Get NetCDF |
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| 195 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 196 | |
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| 197 | # Get the variables |
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| 198 | x = fid.variables['x'] |
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| 199 | y = fid.variables['y'] |
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| 200 | z = fid.variables['elevation'] |
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| 201 | |
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| 202 | volumes = fid.variables['volumes'] |
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| 203 | |
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| 204 | X = x[:] |
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| 205 | Y = y[:] |
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| 206 | |
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| 207 | assert allclose([X[0], Y[0]], array([0.0, 0.0])) |
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| 208 | assert allclose([X[1], Y[1]], array([0.0, 0.5])) |
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| 209 | assert allclose([X[2], Y[2]], array([0.0, 1.0])) |
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| 210 | |
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| 211 | assert allclose([X[4], Y[4]], array([0.5, 0.5])) |
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| 212 | |
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| 213 | assert allclose([X[7], Y[7]], array([1.0, 0.5])) |
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| 214 | |
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| 215 | Z = z[:] |
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| 216 | assert Z[4] == -0.5 |
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| 217 | |
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| 218 | V = volumes |
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| 219 | assert V[2,0] == 4 |
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| 220 | assert V[2,1] == 5 |
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| 221 | assert V[2,2] == 1 |
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| 222 | |
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| 223 | assert V[4,0] == 6 |
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| 224 | assert V[4,1] == 7 |
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| 225 | assert V[4,2] == 3 |
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| 226 | |
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| 227 | |
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| 228 | fid.close() |
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| 229 | |
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| 230 | #Cleanup |
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| 231 | os.remove(sww.filename) |
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| 232 | |
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| 233 | |
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| 234 | |
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| 235 | def test_sww_variable(self): |
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| 236 | """Test that sww information can be written correctly |
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| 237 | """ |
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| 238 | |
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| 239 | import time, os |
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| 240 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 241 | from Scientific.IO.NetCDF import NetCDFFile |
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| 242 | |
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| 243 | self.domain.filename = 'datatest' + str(id(self)) |
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| 244 | self.domain.format = 'sww' |
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| 245 | self.domain.smooth = True |
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| 246 | self.domain.reduction = mean |
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| 247 | |
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| 248 | sww = get_dataobject(self.domain) |
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| 249 | sww.store_connectivity() |
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| 250 | sww.store_timestep('stage') |
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| 251 | |
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| 252 | #Check contents |
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| 253 | #Get NetCDF |
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| 254 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 255 | |
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| 256 | |
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| 257 | # Get the variables |
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| 258 | x = fid.variables['x'] |
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| 259 | y = fid.variables['y'] |
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| 260 | z = fid.variables['elevation'] |
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| 261 | time = fid.variables['time'] |
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| 262 | stage = fid.variables['stage'] |
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| 263 | |
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| 264 | |
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| 265 | Q = self.domain.quantities['stage'] |
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| 266 | Q0 = Q.vertex_values[:,0] |
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| 267 | Q1 = Q.vertex_values[:,1] |
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| 268 | Q2 = Q.vertex_values[:,2] |
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| 269 | |
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| 270 | A = stage[0,:] |
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| 271 | #print A[0], (Q2[0,0] + Q1[1,0])/2 |
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| 272 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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| 273 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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| 274 | assert allclose(A[2], Q0[3]) |
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| 275 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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| 276 | |
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| 277 | #Center point |
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| 278 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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| 279 | Q0[5] + Q2[6] + Q1[7])/6) |
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| 280 | |
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| 281 | |
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| 282 | |
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| 283 | fid.close() |
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| 284 | |
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| 285 | #Cleanup |
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| 286 | os.remove(sww.filename) |
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| 287 | |
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| 288 | |
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| 289 | def test_sww_variable2(self): |
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| 290 | """Test that sww information can be written correctly |
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| 291 | multiple timesteps. Use average as reduction operator |
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| 292 | """ |
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| 293 | |
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| 294 | import time, os |
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| 295 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 296 | from Scientific.IO.NetCDF import NetCDFFile |
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| 297 | |
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| 298 | self.domain.filename = 'datatest' + str(id(self)) |
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| 299 | self.domain.format = 'sww' |
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| 300 | self.domain.smooth = True |
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| 301 | |
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| 302 | self.domain.reduction = mean |
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| 303 | |
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| 304 | sww = get_dataobject(self.domain) |
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| 305 | sww.store_connectivity() |
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| 306 | sww.store_timestep('stage') |
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| 307 | self.domain.evolve_to_end(finaltime = 0.01) |
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| 308 | sww.store_timestep('stage') |
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| 309 | |
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| 310 | |
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| 311 | #Check contents |
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| 312 | #Get NetCDF |
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| 313 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 314 | |
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| 315 | # Get the variables |
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| 316 | x = fid.variables['x'] |
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| 317 | y = fid.variables['y'] |
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| 318 | z = fid.variables['elevation'] |
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| 319 | time = fid.variables['time'] |
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| 320 | stage = fid.variables['stage'] |
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| 321 | |
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| 322 | #Check values |
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| 323 | Q = self.domain.quantities['stage'] |
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| 324 | Q0 = Q.vertex_values[:,0] |
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| 325 | Q1 = Q.vertex_values[:,1] |
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| 326 | Q2 = Q.vertex_values[:,2] |
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| 327 | |
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| 328 | A = stage[1,:] |
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| 329 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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| 330 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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| 331 | assert allclose(A[2], Q0[3]) |
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| 332 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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| 333 | |
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| 334 | #Center point |
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| 335 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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| 336 | Q0[5] + Q2[6] + Q1[7])/6) |
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| 337 | |
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| 338 | |
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| 339 | fid.close() |
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| 340 | |
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| 341 | #Cleanup |
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| 342 | os.remove(sww.filename) |
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| 343 | |
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| 344 | def test_sww_variable3(self): |
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| 345 | """Test that sww information can be written correctly |
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| 346 | multiple timesteps using a different reduction operator (min) |
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| 347 | """ |
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| 348 | |
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| 349 | import time, os |
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| 350 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 351 | from Scientific.IO.NetCDF import NetCDFFile |
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| 352 | |
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| 353 | self.domain.filename = 'datatest' + str(id(self)) |
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| 354 | self.domain.format = 'sww' |
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| 355 | self.domain.smooth = True |
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| 356 | self.domain.reduction = min |
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| 357 | |
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| 358 | sww = get_dataobject(self.domain) |
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| 359 | sww.store_connectivity() |
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| 360 | sww.store_timestep('stage') |
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| 361 | |
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| 362 | self.domain.evolve_to_end(finaltime = 0.01) |
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| 363 | sww.store_timestep('stage') |
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| 364 | |
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| 365 | |
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| 366 | #Check contents |
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| 367 | #Get NetCDF |
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| 368 | fid = NetCDFFile(sww.filename, 'r') |
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| 369 | |
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| 370 | |
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| 371 | # Get the variables |
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| 372 | x = fid.variables['x'] |
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| 373 | y = fid.variables['y'] |
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| 374 | z = fid.variables['elevation'] |
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| 375 | time = fid.variables['time'] |
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| 376 | stage = fid.variables['stage'] |
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| 377 | |
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| 378 | #Check values |
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| 379 | Q = self.domain.quantities['stage'] |
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| 380 | Q0 = Q.vertex_values[:,0] |
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| 381 | Q1 = Q.vertex_values[:,1] |
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| 382 | Q2 = Q.vertex_values[:,2] |
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| 383 | |
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| 384 | A = stage[1,:] |
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| 385 | assert allclose(A[0], min(Q2[0], Q1[1])) |
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| 386 | assert allclose(A[1], min(Q0[1], Q1[3], Q2[2])) |
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| 387 | assert allclose(A[2], Q0[3]) |
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| 388 | assert allclose(A[3], min(Q0[0], Q1[5], Q2[4])) |
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| 389 | |
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| 390 | #Center point |
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| 391 | assert allclose(A[4], min(Q1[0], Q2[1], Q0[2],\ |
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| 392 | Q0[5], Q2[6], Q1[7])) |
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| 393 | |
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| 394 | |
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| 395 | fid.close() |
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| 396 | |
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| 397 | #Cleanup |
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| 398 | os.remove(sww.filename) |
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| 399 | |
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| 400 | |
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| 401 | def test_sync(self): |
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| 402 | """Test info stored at each timestep is as expected (incl initial condition) |
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| 403 | """ |
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| 404 | |
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| 405 | import time, os, config |
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| 406 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 407 | from Scientific.IO.NetCDF import NetCDFFile |
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| 408 | |
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| 409 | self.domain.filename = 'synctest' |
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| 410 | self.domain.format = 'sww' |
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| 411 | self.domain.smooth = False |
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| 412 | self.domain.store = True |
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| 413 | self.domain.beta_h = 0 |
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| 414 | |
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| 415 | #Evolution |
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| 416 | for t in self.domain.evolve(yieldstep = 1.0, finaltime = 4.0): |
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| 417 | stage = self.domain.quantities['stage'].vertex_values |
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| 418 | |
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| 419 | #Get NetCDF |
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| 420 | fid = NetCDFFile(self.domain.writer.filename, 'r') |
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| 421 | stage_file = fid.variables['stage'] |
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| 422 | |
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| 423 | if t == 0.0: |
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| 424 | assert allclose(stage, self.initial_stage) |
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| 425 | assert allclose(stage_file[:], stage.flat) |
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| 426 | else: |
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| 427 | assert not allclose(stage, self.initial_stage) |
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| 428 | assert not allclose(stage_file[:], stage.flat) |
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| 429 | |
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| 430 | fid.close() |
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| 431 | |
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| 432 | os.remove(self.domain.writer.filename) |
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| 433 | |
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| 434 | |
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| 435 | |
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| 436 | def test_sww_DSG(self): |
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| 437 | """Not a test, rather a look at the sww format |
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| 438 | """ |
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| 439 | |
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| 440 | import time, os |
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| 441 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 442 | from Scientific.IO.NetCDF import NetCDFFile |
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| 443 | |
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| 444 | self.domain.filename = 'datatest' + str(id(self)) |
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| 445 | self.domain.format = 'sww' |
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| 446 | self.domain.smooth = True |
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| 447 | self.domain.reduction = mean |
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| 448 | |
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| 449 | sww = get_dataobject(self.domain) |
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| 450 | sww.store_connectivity() |
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| 451 | sww.store_timestep('stage') |
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| 452 | |
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| 453 | #Check contents |
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| 454 | #Get NetCDF |
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| 455 | fid = NetCDFFile(sww.filename, 'r') |
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| 456 | |
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| 457 | # Get the variables |
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| 458 | x = fid.variables['x'] |
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| 459 | y = fid.variables['y'] |
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| 460 | z = fid.variables['elevation'] |
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| 461 | |
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| 462 | volumes = fid.variables['volumes'] |
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| 463 | time = fid.variables['time'] |
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| 464 | |
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| 465 | # 2D |
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| 466 | stage = fid.variables['stage'] |
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| 467 | |
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| 468 | X = x[:] |
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| 469 | Y = y[:] |
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| 470 | Z = z[:] |
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| 471 | V = volumes[:] |
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| 472 | T = time[:] |
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| 473 | S = stage[:,:] |
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| 474 | |
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| 475 | # print "****************************" |
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| 476 | # print "X ",X |
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| 477 | # print "****************************" |
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| 478 | # print "Y ",Y |
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| 479 | # print "****************************" |
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| 480 | # print "Z ",Z |
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| 481 | # print "****************************" |
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| 482 | # print "V ",V |
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| 483 | # print "****************************" |
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| 484 | # print "Time ",T |
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| 485 | # print "****************************" |
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| 486 | # print "Stage ",S |
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| 487 | # print "****************************" |
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| 488 | |
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| 489 | |
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| 490 | fid.close() |
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| 491 | |
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| 492 | #Cleanup |
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| 493 | os.remove(sww.filename) |
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| 494 | |
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| 495 | |
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| 496 | |
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| 497 | def test_dem2pts(self): |
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| 498 | """Test conversion from dem in ascii format to native NetCDF xya format |
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| 499 | """ |
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| 500 | |
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| 501 | import time, os |
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| 502 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 503 | from Scientific.IO.NetCDF import NetCDFFile |
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| 504 | |
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| 505 | #Write test asc file |
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| 506 | root = 'demtest' |
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| 507 | |
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| 508 | filename = root+'.asc' |
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| 509 | fid = open(filename, 'w') |
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| 510 | fid.write("""ncols 5 |
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| 511 | nrows 6 |
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| 512 | xllcorner 2000.5 |
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| 513 | yllcorner 3000.5 |
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| 514 | cellsize 25 |
---|
| 515 | NODATA_value -9999 |
---|
| 516 | """) |
---|
| 517 | #Create linear function |
---|
| 518 | |
---|
| 519 | ref_points = [] |
---|
| 520 | ref_elevation = [] |
---|
| 521 | for i in range(6): |
---|
| 522 | y = (6-i)*25.0 |
---|
| 523 | for j in range(5): |
---|
| 524 | x = j*25.0 |
---|
| 525 | z = x+2*y |
---|
| 526 | |
---|
| 527 | ref_points.append( [x,y] ) |
---|
| 528 | ref_elevation.append(z) |
---|
| 529 | fid.write('%f ' %z) |
---|
| 530 | fid.write('\n') |
---|
| 531 | |
---|
| 532 | fid.close() |
---|
| 533 | |
---|
| 534 | #Write prj file with metadata |
---|
| 535 | metafilename = root+'.prj' |
---|
| 536 | fid = open(metafilename, 'w') |
---|
| 537 | |
---|
| 538 | |
---|
| 539 | fid.write("""Projection UTM |
---|
| 540 | Zone 56 |
---|
| 541 | Datum WGS84 |
---|
| 542 | Zunits NO |
---|
| 543 | Units METERS |
---|
| 544 | Spheroid WGS84 |
---|
| 545 | Xshift 0.0000000000 |
---|
| 546 | Yshift 10000000.0000000000 |
---|
| 547 | Parameters |
---|
| 548 | """) |
---|
| 549 | fid.close() |
---|
| 550 | |
---|
| 551 | #Convert to NetCDF pts |
---|
| 552 | convert_dem_from_ascii2netcdf(root) |
---|
| 553 | dem2pts(root) |
---|
| 554 | |
---|
| 555 | #Check contents |
---|
| 556 | #Get NetCDF |
---|
| 557 | fid = NetCDFFile(root+'.pts', 'r') |
---|
| 558 | |
---|
| 559 | # Get the variables |
---|
| 560 | #print fid.variables.keys() |
---|
| 561 | points = fid.variables['points'] |
---|
| 562 | elevation = fid.variables['elevation'] |
---|
| 563 | |
---|
| 564 | #Check values |
---|
| 565 | |
---|
| 566 | #print points[:] |
---|
| 567 | #print ref_points |
---|
| 568 | assert allclose(points, ref_points) |
---|
| 569 | |
---|
| 570 | #print attributes[:] |
---|
| 571 | #print ref_elevation |
---|
| 572 | assert allclose(elevation, ref_elevation) |
---|
| 573 | |
---|
| 574 | #Cleanup |
---|
| 575 | fid.close() |
---|
| 576 | |
---|
| 577 | |
---|
| 578 | os.remove(root + '.pts') |
---|
| 579 | os.remove(root + '.dem') |
---|
| 580 | os.remove(root + '.asc') |
---|
| 581 | os.remove(root + '.prj') |
---|
| 582 | |
---|
| 583 | |
---|
| 584 | |
---|
| 585 | def test_sww2asc_elevation(self): |
---|
| 586 | """Test that sww information can be converted correctly to asc/prj |
---|
| 587 | format readable by e.g. ArcView |
---|
| 588 | """ |
---|
| 589 | |
---|
| 590 | import time, os |
---|
| 591 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
| 592 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 593 | |
---|
| 594 | #Setup |
---|
| 595 | self.domain.filename = 'datatest' |
---|
| 596 | |
---|
| 597 | prjfile = self.domain.filename + '_elevation.prj' |
---|
| 598 | ascfile = self.domain.filename + '_elevation.asc' |
---|
| 599 | swwfile = self.domain.filename + '.sww' |
---|
| 600 | |
---|
| 601 | self.domain.set_datadir('.') |
---|
| 602 | self.domain.format = 'sww' |
---|
| 603 | self.domain.smooth = True |
---|
| 604 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 605 | |
---|
| 606 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 607 | |
---|
| 608 | sww = get_dataobject(self.domain) |
---|
| 609 | sww.store_connectivity() |
---|
| 610 | sww.store_timestep('stage') |
---|
| 611 | |
---|
| 612 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
| 613 | sww.store_timestep('stage') |
---|
| 614 | |
---|
| 615 | cellsize = 0.25 |
---|
| 616 | #Check contents |
---|
| 617 | #Get NetCDF |
---|
| 618 | |
---|
| 619 | fid = NetCDFFile(sww.filename, 'r') |
---|
| 620 | |
---|
| 621 | # Get the variables |
---|
| 622 | x = fid.variables['x'][:] |
---|
| 623 | y = fid.variables['y'][:] |
---|
| 624 | z = fid.variables['elevation'][:] |
---|
| 625 | time = fid.variables['time'][:] |
---|
| 626 | stage = fid.variables['stage'][:] |
---|
| 627 | |
---|
| 628 | |
---|
| 629 | #Export to ascii/prj files |
---|
| 630 | sww2asc(self.domain.filename, |
---|
| 631 | quantity = 'elevation', |
---|
| 632 | cellsize = cellsize, |
---|
| 633 | verbose = False) |
---|
| 634 | |
---|
| 635 | |
---|
| 636 | #Check prj (meta data) |
---|
| 637 | prjid = open(prjfile) |
---|
| 638 | lines = prjid.readlines() |
---|
| 639 | prjid.close() |
---|
| 640 | |
---|
| 641 | L = lines[0].strip().split() |
---|
| 642 | assert L[0].strip().lower() == 'projection' |
---|
| 643 | assert L[1].strip().lower() == 'utm' |
---|
| 644 | |
---|
| 645 | L = lines[1].strip().split() |
---|
| 646 | assert L[0].strip().lower() == 'zone' |
---|
| 647 | assert L[1].strip().lower() == '56' |
---|
| 648 | |
---|
| 649 | L = lines[2].strip().split() |
---|
| 650 | assert L[0].strip().lower() == 'datum' |
---|
| 651 | assert L[1].strip().lower() == 'wgs84' |
---|
| 652 | |
---|
| 653 | L = lines[3].strip().split() |
---|
| 654 | assert L[0].strip().lower() == 'zunits' |
---|
| 655 | assert L[1].strip().lower() == 'no' |
---|
| 656 | |
---|
| 657 | L = lines[4].strip().split() |
---|
| 658 | assert L[0].strip().lower() == 'units' |
---|
| 659 | assert L[1].strip().lower() == 'meters' |
---|
| 660 | |
---|
| 661 | L = lines[5].strip().split() |
---|
| 662 | assert L[0].strip().lower() == 'spheroid' |
---|
| 663 | assert L[1].strip().lower() == 'wgs84' |
---|
| 664 | |
---|
| 665 | L = lines[6].strip().split() |
---|
| 666 | assert L[0].strip().lower() == 'xshift' |
---|
| 667 | assert L[1].strip().lower() == '500000' |
---|
| 668 | |
---|
| 669 | L = lines[7].strip().split() |
---|
| 670 | assert L[0].strip().lower() == 'yshift' |
---|
| 671 | assert L[1].strip().lower() == '10000000' |
---|
| 672 | |
---|
| 673 | L = lines[8].strip().split() |
---|
| 674 | assert L[0].strip().lower() == 'parameters' |
---|
| 675 | |
---|
| 676 | |
---|
| 677 | #Check asc file |
---|
| 678 | ascid = open(ascfile) |
---|
| 679 | lines = ascid.readlines() |
---|
| 680 | ascid.close() |
---|
| 681 | |
---|
| 682 | L = lines[0].strip().split() |
---|
| 683 | assert L[0].strip().lower() == 'ncols' |
---|
| 684 | assert L[1].strip().lower() == '5' |
---|
| 685 | |
---|
| 686 | L = lines[1].strip().split() |
---|
| 687 | assert L[0].strip().lower() == 'nrows' |
---|
| 688 | assert L[1].strip().lower() == '5' |
---|
| 689 | |
---|
| 690 | L = lines[2].strip().split() |
---|
| 691 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 692 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
| 693 | |
---|
| 694 | L = lines[3].strip().split() |
---|
| 695 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 696 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
| 697 | |
---|
| 698 | L = lines[4].strip().split() |
---|
| 699 | assert L[0].strip().lower() == 'cellsize' |
---|
| 700 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
| 701 | |
---|
| 702 | L = lines[5].strip().split() |
---|
| 703 | assert L[0].strip() == 'NODATA_value' |
---|
| 704 | assert L[1].strip().lower() == '-9999' |
---|
| 705 | |
---|
| 706 | #Check grid values |
---|
| 707 | for j in range(5): |
---|
| 708 | L = lines[6+j].strip().split() |
---|
| 709 | y = (4-j) * cellsize |
---|
| 710 | for i in range(5): |
---|
| 711 | assert allclose(float(L[i]), -i*cellsize - y) |
---|
| 712 | |
---|
| 713 | |
---|
| 714 | fid.close() |
---|
| 715 | |
---|
| 716 | #Cleanup |
---|
| 717 | os.remove(prjfile) |
---|
| 718 | os.remove(ascfile) |
---|
| 719 | os.remove(swwfile) |
---|
| 720 | |
---|
| 721 | |
---|
| 722 | def test_sww2asc_stage_reduction(self): |
---|
| 723 | """Test that sww information can be converted correctly to asc/prj |
---|
| 724 | format readable by e.g. ArcView |
---|
| 725 | |
---|
| 726 | This tests the reduction of quantity stage using min |
---|
| 727 | """ |
---|
| 728 | |
---|
| 729 | import time, os |
---|
| 730 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
| 731 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 732 | |
---|
| 733 | #Setup |
---|
| 734 | self.domain.filename = 'datatest' |
---|
| 735 | |
---|
| 736 | prjfile = self.domain.filename + '_stage.prj' |
---|
| 737 | ascfile = self.domain.filename + '_stage.asc' |
---|
| 738 | swwfile = self.domain.filename + '.sww' |
---|
| 739 | |
---|
| 740 | self.domain.set_datadir('.') |
---|
| 741 | self.domain.format = 'sww' |
---|
| 742 | self.domain.smooth = True |
---|
| 743 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 744 | |
---|
| 745 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 746 | |
---|
| 747 | |
---|
| 748 | sww = get_dataobject(self.domain) |
---|
| 749 | sww.store_connectivity() |
---|
| 750 | sww.store_timestep('stage') |
---|
| 751 | |
---|
| 752 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
| 753 | sww.store_timestep('stage') |
---|
| 754 | |
---|
| 755 | cellsize = 0.25 |
---|
| 756 | #Check contents |
---|
| 757 | #Get NetCDF |
---|
| 758 | |
---|
| 759 | fid = NetCDFFile(sww.filename, 'r') |
---|
| 760 | |
---|
| 761 | # Get the variables |
---|
| 762 | x = fid.variables['x'][:] |
---|
| 763 | y = fid.variables['y'][:] |
---|
| 764 | z = fid.variables['elevation'][:] |
---|
| 765 | time = fid.variables['time'][:] |
---|
| 766 | stage = fid.variables['stage'][:] |
---|
| 767 | |
---|
| 768 | |
---|
| 769 | #Export to ascii/prj files |
---|
| 770 | sww2asc(self.domain.filename, |
---|
| 771 | quantity = 'stage', |
---|
| 772 | cellsize = cellsize, |
---|
| 773 | reduction = min) |
---|
| 774 | |
---|
| 775 | |
---|
| 776 | #Check asc file |
---|
| 777 | ascid = open(ascfile) |
---|
| 778 | lines = ascid.readlines() |
---|
| 779 | ascid.close() |
---|
| 780 | |
---|
| 781 | L = lines[0].strip().split() |
---|
| 782 | assert L[0].strip().lower() == 'ncols' |
---|
| 783 | assert L[1].strip().lower() == '5' |
---|
| 784 | |
---|
| 785 | L = lines[1].strip().split() |
---|
| 786 | assert L[0].strip().lower() == 'nrows' |
---|
| 787 | assert L[1].strip().lower() == '5' |
---|
| 788 | |
---|
| 789 | L = lines[2].strip().split() |
---|
| 790 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 791 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
| 792 | |
---|
| 793 | L = lines[3].strip().split() |
---|
| 794 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 795 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
| 796 | |
---|
| 797 | L = lines[4].strip().split() |
---|
| 798 | assert L[0].strip().lower() == 'cellsize' |
---|
| 799 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
| 800 | |
---|
| 801 | L = lines[5].strip().split() |
---|
| 802 | assert L[0].strip() == 'NODATA_value' |
---|
| 803 | assert L[1].strip().lower() == '-9999' |
---|
| 804 | |
---|
| 805 | |
---|
| 806 | #Check grid values (where applicable) |
---|
| 807 | for j in range(5): |
---|
| 808 | if j%2 == 0: |
---|
| 809 | L = lines[6+j].strip().split() |
---|
| 810 | jj = 4-j |
---|
| 811 | for i in range(5): |
---|
| 812 | if i%2 == 0: |
---|
| 813 | index = jj/2 + i/2*3 |
---|
| 814 | val0 = stage[0,index] |
---|
| 815 | val1 = stage[1,index] |
---|
| 816 | |
---|
| 817 | #print i, j, index, ':', L[i], val0, val1 |
---|
| 818 | assert allclose(float(L[i]), min(val0, val1)) |
---|
| 819 | |
---|
| 820 | |
---|
| 821 | fid.close() |
---|
| 822 | |
---|
| 823 | #Cleanup |
---|
| 824 | os.remove(prjfile) |
---|
| 825 | os.remove(ascfile) |
---|
| 826 | #os.remove(swwfile) |
---|
| 827 | |
---|
| 828 | |
---|
| 829 | |
---|
| 830 | |
---|
| 831 | def test_sww2asc_missing_points(self): |
---|
| 832 | """Test that sww information can be converted correctly to asc/prj |
---|
| 833 | format readable by e.g. ArcView |
---|
| 834 | |
---|
| 835 | This test includes the writing of missing values |
---|
| 836 | """ |
---|
| 837 | |
---|
| 838 | import time, os |
---|
| 839 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
| 840 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 841 | |
---|
| 842 | #Setup mesh not coinciding with rectangle. |
---|
| 843 | #This will cause missing values to occur in gridded data |
---|
| 844 | |
---|
| 845 | |
---|
| 846 | points = [ [1.0, 1.0], |
---|
| 847 | [0.5, 0.5], [1.0, 0.5], |
---|
| 848 | [0.0, 0.0], [0.5, 0.0], [1.0, 0.0]] |
---|
| 849 | |
---|
| 850 | vertices = [ [4,1,3], [5,2,4], [1,4,2], [2,0,1]] |
---|
| 851 | |
---|
| 852 | #Create shallow water domain |
---|
| 853 | domain = Domain(points, vertices) |
---|
| 854 | domain.default_order=2 |
---|
| 855 | |
---|
| 856 | |
---|
| 857 | #Set some field values |
---|
| 858 | domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 859 | domain.set_quantity('friction', 0.03) |
---|
| 860 | |
---|
| 861 | |
---|
| 862 | ###################### |
---|
| 863 | # Boundary conditions |
---|
| 864 | B = Transmissive_boundary(domain) |
---|
| 865 | domain.set_boundary( {'exterior': B} ) |
---|
| 866 | |
---|
| 867 | |
---|
| 868 | ###################### |
---|
| 869 | #Initial condition - with jumps |
---|
| 870 | |
---|
| 871 | bed = domain.quantities['elevation'].vertex_values |
---|
| 872 | stage = zeros(bed.shape, Float) |
---|
| 873 | |
---|
| 874 | h = 0.3 |
---|
| 875 | for i in range(stage.shape[0]): |
---|
| 876 | if i % 2 == 0: |
---|
| 877 | stage[i,:] = bed[i,:] + h |
---|
| 878 | else: |
---|
| 879 | stage[i,:] = bed[i,:] |
---|
| 880 | |
---|
| 881 | domain.set_quantity('stage', stage) |
---|
| 882 | domain.distribute_to_vertices_and_edges() |
---|
| 883 | |
---|
| 884 | domain.filename = 'datatest' |
---|
| 885 | |
---|
| 886 | prjfile = domain.filename + '_elevation.prj' |
---|
| 887 | ascfile = domain.filename + '_elevation.asc' |
---|
| 888 | swwfile = domain.filename + '.sww' |
---|
| 889 | |
---|
| 890 | domain.set_datadir('.') |
---|
| 891 | domain.format = 'sww' |
---|
| 892 | domain.smooth = True |
---|
| 893 | |
---|
| 894 | domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 895 | |
---|
| 896 | sww = get_dataobject(domain) |
---|
| 897 | sww.store_connectivity() |
---|
| 898 | sww.store_timestep('stage') |
---|
| 899 | |
---|
| 900 | cellsize = 0.25 |
---|
| 901 | #Check contents |
---|
| 902 | #Get NetCDF |
---|
| 903 | |
---|
| 904 | fid = NetCDFFile(swwfile, 'r') |
---|
| 905 | |
---|
| 906 | # Get the variables |
---|
| 907 | x = fid.variables['x'][:] |
---|
| 908 | y = fid.variables['y'][:] |
---|
| 909 | z = fid.variables['elevation'][:] |
---|
| 910 | time = fid.variables['time'][:] |
---|
| 911 | |
---|
| 912 | try: |
---|
| 913 | geo_reference = Geo_reference(NetCDFObject=fid) |
---|
| 914 | except AttributeError, e: |
---|
| 915 | geo_reference = Geo_reference(DEFAULT_ZONE,0,0) |
---|
| 916 | |
---|
| 917 | #Export to ascii/prj files |
---|
| 918 | sww2asc(domain.filename, |
---|
| 919 | quantity = 'elevation', |
---|
| 920 | cellsize = cellsize, |
---|
| 921 | verbose = False) |
---|
| 922 | |
---|
| 923 | |
---|
| 924 | #Check asc file |
---|
| 925 | ascid = open(ascfile) |
---|
| 926 | lines = ascid.readlines() |
---|
| 927 | ascid.close() |
---|
| 928 | |
---|
| 929 | L = lines[0].strip().split() |
---|
| 930 | assert L[0].strip().lower() == 'ncols' |
---|
| 931 | assert L[1].strip().lower() == '5' |
---|
| 932 | |
---|
| 933 | L = lines[1].strip().split() |
---|
| 934 | assert L[0].strip().lower() == 'nrows' |
---|
| 935 | assert L[1].strip().lower() == '5' |
---|
| 936 | |
---|
| 937 | L = lines[2].strip().split() |
---|
| 938 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 939 | assert allclose(float(L[1].strip().lower()), 308500) |
---|
| 940 | |
---|
| 941 | L = lines[3].strip().split() |
---|
| 942 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 943 | assert allclose(float(L[1].strip().lower()), 6189000) |
---|
| 944 | |
---|
| 945 | L = lines[4].strip().split() |
---|
| 946 | assert L[0].strip().lower() == 'cellsize' |
---|
| 947 | assert allclose(float(L[1].strip().lower()), cellsize) |
---|
| 948 | |
---|
| 949 | L = lines[5].strip().split() |
---|
| 950 | assert L[0].strip() == 'NODATA_value' |
---|
| 951 | assert L[1].strip().lower() == '-9999' |
---|
| 952 | |
---|
| 953 | |
---|
| 954 | #Check grid values |
---|
| 955 | for j in range(5): |
---|
| 956 | L = lines[6+j].strip().split() |
---|
| 957 | y = (4-j) * cellsize |
---|
| 958 | for i in range(5): |
---|
| 959 | if i+j >= 4: |
---|
| 960 | assert allclose(float(L[i]), -i*cellsize - y) |
---|
| 961 | else: |
---|
| 962 | #Missing values |
---|
| 963 | assert allclose(float(L[i]), -9999) |
---|
| 964 | |
---|
| 965 | |
---|
| 966 | |
---|
| 967 | fid.close() |
---|
| 968 | |
---|
| 969 | #Cleanup |
---|
| 970 | os.remove(prjfile) |
---|
| 971 | os.remove(ascfile) |
---|
| 972 | os.remove(swwfile) |
---|
| 973 | |
---|
| 974 | |
---|
| 975 | def test_ferret2sww(self): |
---|
| 976 | """Test that georeferencing etc works when converting from |
---|
| 977 | ferret format (lat/lon) to sww format (UTM) |
---|
| 978 | """ |
---|
| 979 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 980 | |
---|
| 981 | #The test file has |
---|
| 982 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
| 983 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
| 984 | # TIME = 0, 0.1, 0.6, 1.1, 1.6, 2.1 ; |
---|
| 985 | # |
---|
| 986 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
| 987 | # Fourth value (index==3) is -6.50198 cm |
---|
| 988 | |
---|
| 989 | |
---|
| 990 | from coordinate_transforms.redfearn import redfearn |
---|
| 991 | |
---|
| 992 | fid = NetCDFFile('small_ha.nc') |
---|
| 993 | first_value = fid.variables['HA'][:][0,0,0] |
---|
| 994 | fourth_value = fid.variables['HA'][:][0,0,3] |
---|
| 995 | |
---|
| 996 | |
---|
| 997 | #Call conversion (with zero origin) |
---|
| 998 | ferret2sww('small', verbose=False, |
---|
| 999 | origin = (56, 0, 0)) |
---|
| 1000 | |
---|
| 1001 | |
---|
| 1002 | #Work out the UTM coordinates for first point |
---|
| 1003 | zone, e, n = redfearn(-34.5, 150.66667) |
---|
| 1004 | #print zone, e, n |
---|
| 1005 | |
---|
| 1006 | #Read output file 'small.sww' |
---|
| 1007 | fid = NetCDFFile('small.sww') |
---|
| 1008 | |
---|
| 1009 | x = fid.variables['x'][:] |
---|
| 1010 | y = fid.variables['y'][:] |
---|
| 1011 | |
---|
| 1012 | #Check that first coordinate is correctly represented |
---|
| 1013 | assert allclose(x[0], e) |
---|
| 1014 | assert allclose(y[0], n) |
---|
| 1015 | |
---|
| 1016 | #Check first value |
---|
| 1017 | stage = fid.variables['stage'][:] |
---|
| 1018 | xmomentum = fid.variables['xmomentum'][:] |
---|
| 1019 | ymomentum = fid.variables['ymomentum'][:] |
---|
| 1020 | |
---|
| 1021 | #print ymomentum |
---|
| 1022 | |
---|
| 1023 | assert allclose(stage[0,0], first_value/100) #Meters |
---|
| 1024 | |
---|
| 1025 | #Check fourth value |
---|
| 1026 | assert allclose(stage[0,3], fourth_value/100) #Meters |
---|
| 1027 | |
---|
| 1028 | fid.close() |
---|
| 1029 | |
---|
| 1030 | #Cleanup |
---|
| 1031 | import os |
---|
| 1032 | os.remove('small.sww') |
---|
| 1033 | |
---|
| 1034 | |
---|
| 1035 | |
---|
| 1036 | def test_ferret2sww_2(self): |
---|
| 1037 | """Test that georeferencing etc works when converting from |
---|
| 1038 | ferret format (lat/lon) to sww format (UTM) |
---|
| 1039 | """ |
---|
| 1040 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 1041 | |
---|
| 1042 | #The test file has |
---|
| 1043 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
| 1044 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
| 1045 | # TIME = 0, 0.1, 0.6, 1.1, 1.6, 2.1 ; |
---|
| 1046 | # |
---|
| 1047 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
| 1048 | # Fourth value (index==3) is -6.50198 cm |
---|
| 1049 | |
---|
| 1050 | |
---|
| 1051 | from coordinate_transforms.redfearn import redfearn |
---|
| 1052 | |
---|
| 1053 | fid = NetCDFFile('small_ha.nc') |
---|
| 1054 | |
---|
| 1055 | #Pick a coordinate and a value |
---|
| 1056 | |
---|
| 1057 | time_index = 1 |
---|
| 1058 | lat_index = 0 |
---|
| 1059 | lon_index = 2 |
---|
| 1060 | |
---|
| 1061 | test_value = fid.variables['HA'][:][time_index, lat_index, lon_index] |
---|
| 1062 | test_time = fid.variables['TIME'][:][time_index] |
---|
| 1063 | test_lat = fid.variables['LAT'][:][lat_index] |
---|
| 1064 | test_lon = fid.variables['LON'][:][lon_index] |
---|
| 1065 | |
---|
| 1066 | linear_point_index = lat_index*4 + lon_index |
---|
| 1067 | fid.close() |
---|
| 1068 | |
---|
| 1069 | #Call conversion (with zero origin) |
---|
| 1070 | ferret2sww('small', verbose=False, |
---|
| 1071 | origin = (56, 0, 0)) |
---|
| 1072 | |
---|
| 1073 | |
---|
| 1074 | #Work out the UTM coordinates for test point |
---|
| 1075 | zone, e, n = redfearn(test_lat, test_lon) |
---|
| 1076 | |
---|
| 1077 | #Read output file 'small.sww' |
---|
| 1078 | fid = NetCDFFile('small.sww') |
---|
| 1079 | |
---|
| 1080 | x = fid.variables['x'][:] |
---|
| 1081 | y = fid.variables['y'][:] |
---|
| 1082 | |
---|
| 1083 | #Check that test coordinate is correctly represented |
---|
| 1084 | assert allclose(x[linear_point_index], e) |
---|
| 1085 | assert allclose(y[linear_point_index], n) |
---|
| 1086 | |
---|
| 1087 | #Check test value |
---|
| 1088 | stage = fid.variables['stage'][:] |
---|
| 1089 | |
---|
| 1090 | assert allclose(stage[time_index, linear_point_index], test_value/100) |
---|
| 1091 | |
---|
| 1092 | fid.close() |
---|
| 1093 | |
---|
| 1094 | #Cleanup |
---|
| 1095 | import os |
---|
| 1096 | os.remove('small.sww') |
---|
| 1097 | |
---|
| 1098 | |
---|
| 1099 | |
---|
| 1100 | def test_ferret2sww3(self): |
---|
| 1101 | """ |
---|
| 1102 | """ |
---|
| 1103 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 1104 | |
---|
| 1105 | #The test file has |
---|
| 1106 | # LON = 150.66667, 150.83334, 151, 151.16667 |
---|
| 1107 | # LAT = -34.5, -34.33333, -34.16667, -34 ; |
---|
| 1108 | # ELEVATION = [-1 -2 -3 -4 |
---|
| 1109 | # -5 -6 -7 -8 |
---|
| 1110 | # ... |
---|
| 1111 | # ... -16] |
---|
| 1112 | # where the top left corner is -1m, |
---|
| 1113 | # and the ll corner is -13.0m |
---|
| 1114 | # |
---|
| 1115 | # First value (index=0) in small_ha.nc is 0.3400644 cm, |
---|
| 1116 | # Fourth value (index==3) is -6.50198 cm |
---|
| 1117 | |
---|
| 1118 | from coordinate_transforms.redfearn import redfearn |
---|
| 1119 | import os |
---|
| 1120 | fid1 = NetCDFFile('test_ha.nc','w') |
---|
| 1121 | fid2 = NetCDFFile('test_ua.nc','w') |
---|
| 1122 | fid3 = NetCDFFile('test_va.nc','w') |
---|
| 1123 | fid4 = NetCDFFile('test_e.nc','w') |
---|
| 1124 | |
---|
| 1125 | h1_list = [150.66667,150.83334,151.] |
---|
| 1126 | h2_list = [-34.5,-34.33333] |
---|
| 1127 | |
---|
| 1128 | long_name = 'LON' |
---|
| 1129 | lat_name = 'LAT' |
---|
| 1130 | |
---|
| 1131 | nx = 3 |
---|
| 1132 | ny = 2 |
---|
| 1133 | |
---|
| 1134 | for fid in [fid1,fid2,fid3]: |
---|
| 1135 | fid.createDimension(long_name,nx) |
---|
| 1136 | fid.createVariable(long_name,'d',(long_name,)) |
---|
| 1137 | fid.variables[long_name].point_spacing='uneven' |
---|
| 1138 | fid.variables[long_name].units='degrees_east' |
---|
| 1139 | fid.variables[long_name].assignValue(h1_list) |
---|
| 1140 | |
---|
| 1141 | fid.createDimension(lat_name,ny) |
---|
| 1142 | fid.createVariable(lat_name,'d',(lat_name,)) |
---|
| 1143 | fid.variables[lat_name].point_spacing='uneven' |
---|
| 1144 | fid.variables[lat_name].units='degrees_north' |
---|
| 1145 | fid.variables[lat_name].assignValue(h2_list) |
---|
| 1146 | |
---|
| 1147 | fid.createDimension('TIME',2) |
---|
| 1148 | fid.createVariable('TIME','d',('TIME',)) |
---|
| 1149 | fid.variables['TIME'].point_spacing='uneven' |
---|
| 1150 | fid.variables['TIME'].units='seconds' |
---|
| 1151 | fid.variables['TIME'].assignValue([0.,1.]) |
---|
| 1152 | if fid == fid3: break |
---|
| 1153 | |
---|
| 1154 | |
---|
| 1155 | for fid in [fid4]: |
---|
| 1156 | fid.createDimension(long_name,nx) |
---|
| 1157 | fid.createVariable(long_name,'d',(long_name,)) |
---|
| 1158 | fid.variables[long_name].point_spacing='uneven' |
---|
| 1159 | fid.variables[long_name].units='degrees_east' |
---|
| 1160 | fid.variables[long_name].assignValue(h1_list) |
---|
| 1161 | |
---|
| 1162 | fid.createDimension(lat_name,ny) |
---|
| 1163 | fid.createVariable(lat_name,'d',(lat_name,)) |
---|
| 1164 | fid.variables[lat_name].point_spacing='uneven' |
---|
| 1165 | fid.variables[lat_name].units='degrees_north' |
---|
| 1166 | fid.variables[lat_name].assignValue(h2_list) |
---|
| 1167 | |
---|
| 1168 | name = {} |
---|
| 1169 | name[fid1]='HA' |
---|
| 1170 | name[fid2]='UA' |
---|
| 1171 | name[fid3]='VA' |
---|
| 1172 | name[fid4]='ELEVATION' |
---|
| 1173 | |
---|
| 1174 | units = {} |
---|
| 1175 | units[fid1]='cm' |
---|
| 1176 | units[fid2]='cm/s' |
---|
| 1177 | units[fid3]='cm/s' |
---|
| 1178 | units[fid4]='m' |
---|
| 1179 | |
---|
| 1180 | values = {} |
---|
| 1181 | values[fid1]=[[[5., 10.,15.], [13.,18.,23.]],[[50.,100.,150.],[130.,180.,230.]]] |
---|
| 1182 | values[fid2]=[[[1., 2.,3.], [4.,5.,6.]],[[7.,8.,9.],[10.,11.,12.]]] |
---|
| 1183 | values[fid3]=[[[13., 12.,11.], [10.,9.,8.]],[[7.,6.,5.],[4.,3.,2.]]] |
---|
| 1184 | values[fid4]=[[-3000,-3100,-3200],[-4000,-5000,-6000]] |
---|
| 1185 | |
---|
| 1186 | for fid in [fid1,fid2,fid3]: |
---|
| 1187 | fid.createVariable(name[fid],'d',('TIME',lat_name,long_name)) |
---|
| 1188 | fid.variables[name[fid]].point_spacing='uneven' |
---|
| 1189 | fid.variables[name[fid]].units=units[fid] |
---|
| 1190 | fid.variables[name[fid]].assignValue(values[fid]) |
---|
| 1191 | fid.variables[name[fid]].missing_value = -99999999. |
---|
| 1192 | if fid == fid3: break |
---|
| 1193 | |
---|
| 1194 | for fid in [fid4]: |
---|
| 1195 | fid.createVariable(name[fid],'d',(lat_name,long_name)) |
---|
| 1196 | fid.variables[name[fid]].point_spacing='uneven' |
---|
| 1197 | fid.variables[name[fid]].units=units[fid] |
---|
| 1198 | fid.variables[name[fid]].assignValue(values[fid]) |
---|
| 1199 | fid.variables[name[fid]].missing_value = -99999999. |
---|
| 1200 | |
---|
| 1201 | |
---|
| 1202 | fid1.sync(); fid1.close() |
---|
| 1203 | fid2.sync(); fid2.close() |
---|
| 1204 | fid3.sync(); fid3.close() |
---|
| 1205 | fid4.sync(); fid4.close() |
---|
| 1206 | |
---|
| 1207 | fid1 = NetCDFFile('test_ha.nc','r') |
---|
| 1208 | fid2 = NetCDFFile('test_e.nc','r') |
---|
| 1209 | fid3 = NetCDFFile('test_va.nc','r') |
---|
| 1210 | |
---|
| 1211 | |
---|
| 1212 | first_amp = fid1.variables['HA'][:][0,0,0] |
---|
| 1213 | third_amp = fid1.variables['HA'][:][0,0,2] |
---|
| 1214 | first_elevation = fid2.variables['ELEVATION'][0,0] |
---|
| 1215 | third_elevation= fid2.variables['ELEVATION'][:][0,2] |
---|
| 1216 | first_speed = fid3.variables['VA'][0,0,0] |
---|
| 1217 | third_speed = fid3.variables['VA'][:][0,0,2] |
---|
| 1218 | |
---|
| 1219 | fid1.close() |
---|
| 1220 | fid2.close() |
---|
| 1221 | fid3.close() |
---|
| 1222 | |
---|
| 1223 | #Call conversion (with zero origin) |
---|
| 1224 | ferret2sww('test', verbose=False, |
---|
| 1225 | origin = (56, 0, 0)) |
---|
| 1226 | |
---|
| 1227 | os.remove('test_va.nc') |
---|
| 1228 | os.remove('test_ua.nc') |
---|
| 1229 | os.remove('test_ha.nc') |
---|
| 1230 | os.remove('test_e.nc') |
---|
| 1231 | |
---|
| 1232 | #Read output file 'test.sww' |
---|
| 1233 | fid = NetCDFFile('test.sww') |
---|
| 1234 | |
---|
| 1235 | |
---|
| 1236 | #Check first value |
---|
| 1237 | elevation = fid.variables['elevation'][:] |
---|
| 1238 | stage = fid.variables['stage'][:] |
---|
| 1239 | xmomentum = fid.variables['xmomentum'][:] |
---|
| 1240 | ymomentum = fid.variables['ymomentum'][:] |
---|
| 1241 | |
---|
| 1242 | #print ymomentum |
---|
| 1243 | first_height = first_amp/100 - first_elevation |
---|
| 1244 | third_height = third_amp/100 - third_elevation |
---|
| 1245 | first_momentum=first_speed*first_height/100 |
---|
| 1246 | third_momentum=third_speed*third_height/100 |
---|
| 1247 | |
---|
| 1248 | assert allclose(ymomentum[0][0],first_momentum) #Meters |
---|
| 1249 | assert allclose(ymomentum[0][2],third_momentum) #Meters |
---|
| 1250 | |
---|
| 1251 | fid.close() |
---|
| 1252 | |
---|
| 1253 | #Cleanup |
---|
| 1254 | os.remove('test.sww') |
---|
| 1255 | |
---|
| 1256 | |
---|
| 1257 | |
---|
| 1258 | |
---|
| 1259 | def test_sww_extent(self): |
---|
| 1260 | """Not a test, rather a look at the sww format |
---|
| 1261 | """ |
---|
| 1262 | |
---|
| 1263 | import time, os |
---|
| 1264 | from Numeric import array, zeros, allclose, Float, concatenate |
---|
| 1265 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 1266 | |
---|
| 1267 | self.domain.filename = 'datatest' + str(id(self)) |
---|
| 1268 | self.domain.format = 'sww' |
---|
| 1269 | self.domain.smooth = True |
---|
| 1270 | self.domain.reduction = mean |
---|
| 1271 | self.domain.set_datadir('.') |
---|
| 1272 | |
---|
| 1273 | |
---|
| 1274 | sww = get_dataobject(self.domain) |
---|
| 1275 | sww.store_connectivity() |
---|
| 1276 | sww.store_timestep('stage') |
---|
| 1277 | self.domain.time = 2. |
---|
| 1278 | |
---|
| 1279 | #Modify stage at second timestep |
---|
| 1280 | stage = self.domain.quantities['stage'].vertex_values |
---|
| 1281 | self.domain.set_quantity('stage', stage/2) |
---|
| 1282 | |
---|
| 1283 | sww.store_timestep('stage') |
---|
| 1284 | |
---|
| 1285 | file_and_extension_name = self.domain.filename + ".sww" |
---|
| 1286 | #print "file_and_extension_name",file_and_extension_name |
---|
| 1287 | [xmin, xmax, ymin, ymax, stagemin, stagemax] = \ |
---|
| 1288 | extent_sww(file_and_extension_name ) |
---|
| 1289 | |
---|
| 1290 | assert allclose(xmin, 0.0) |
---|
| 1291 | assert allclose(xmax, 1.0) |
---|
| 1292 | assert allclose(ymin, 0.0) |
---|
| 1293 | assert allclose(ymax, 1.0) |
---|
| 1294 | assert allclose(stagemin, -0.85) |
---|
| 1295 | assert allclose(stagemax, 0.15) |
---|
| 1296 | |
---|
| 1297 | |
---|
| 1298 | #Cleanup |
---|
| 1299 | os.remove(sww.filename) |
---|
| 1300 | |
---|
| 1301 | |
---|
| 1302 | def test_ferret2sww_nz_origin(self): |
---|
| 1303 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 1304 | from coordinate_transforms.redfearn import redfearn |
---|
| 1305 | |
---|
| 1306 | #Call conversion (with nonzero origin) |
---|
| 1307 | ferret2sww('small', verbose=False, |
---|
| 1308 | origin = (56, 100000, 200000)) |
---|
| 1309 | |
---|
| 1310 | |
---|
| 1311 | #Work out the UTM coordinates for first point |
---|
| 1312 | zone, e, n = redfearn(-34.5, 150.66667) |
---|
| 1313 | |
---|
| 1314 | #Read output file 'small.sww' |
---|
| 1315 | fid = NetCDFFile('small.sww', 'r') |
---|
| 1316 | |
---|
| 1317 | x = fid.variables['x'][:] |
---|
| 1318 | y = fid.variables['y'][:] |
---|
| 1319 | |
---|
| 1320 | #Check that first coordinate is correctly represented |
---|
| 1321 | assert allclose(x[0], e-100000) |
---|
| 1322 | assert allclose(y[0], n-200000) |
---|
| 1323 | |
---|
| 1324 | fid.close() |
---|
| 1325 | |
---|
| 1326 | #Cleanup |
---|
| 1327 | import os |
---|
| 1328 | os.remove('small.sww') |
---|
| 1329 | |
---|
| 1330 | def test_sww2domain(self): |
---|
| 1331 | ################################################ |
---|
| 1332 | #Create a test domain, and evolve and save it. |
---|
| 1333 | ################################################ |
---|
| 1334 | from mesh_factory import rectangular |
---|
| 1335 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
| 1336 | Constant_height, Time_boundary, Transmissive_boundary |
---|
| 1337 | from Numeric import array |
---|
| 1338 | |
---|
| 1339 | #Create basic mesh |
---|
| 1340 | |
---|
| 1341 | yiel=0.01 |
---|
| 1342 | points, vertices, boundary = rectangular(10,10) |
---|
| 1343 | |
---|
| 1344 | #Create shallow water domain |
---|
| 1345 | domain = Domain(points, vertices, boundary) |
---|
| 1346 | domain.geo_reference = Geo_reference(56,11,11) |
---|
| 1347 | domain.smooth = False |
---|
| 1348 | domain.visualise = False |
---|
| 1349 | domain.store = True |
---|
| 1350 | domain.filename = 'bedslope' |
---|
| 1351 | domain.default_order=2 |
---|
| 1352 | #Bed-slope and friction |
---|
| 1353 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
| 1354 | domain.set_quantity('friction', 0.1) |
---|
| 1355 | # Boundary conditions |
---|
| 1356 | from math import sin, pi |
---|
| 1357 | Br = Reflective_boundary(domain) |
---|
| 1358 | Bt = Transmissive_boundary(domain) |
---|
| 1359 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
| 1360 | Bw = Time_boundary(domain=domain, |
---|
| 1361 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
| 1362 | |
---|
| 1363 | #domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 1364 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
| 1365 | |
---|
| 1366 | domain.quantities_to_be_stored.extend(['xmomentum','ymomentum']) |
---|
| 1367 | #Initial condition |
---|
| 1368 | h = 0.05 |
---|
| 1369 | elevation = domain.quantities['elevation'].vertex_values |
---|
| 1370 | domain.set_quantity('stage', elevation + h) |
---|
| 1371 | #elevation = domain.get_quantity('elevation') |
---|
| 1372 | #domain.set_quantity('stage', elevation + h) |
---|
| 1373 | |
---|
| 1374 | domain.check_integrity() |
---|
| 1375 | #Evolution |
---|
| 1376 | for t in domain.evolve(yieldstep = yiel, finaltime = 0.05): |
---|
| 1377 | # domain.write_time() |
---|
| 1378 | pass |
---|
| 1379 | |
---|
| 1380 | |
---|
| 1381 | ########################################## |
---|
| 1382 | #Import the example's file as a new domain |
---|
| 1383 | ########################################## |
---|
| 1384 | from data_manager import sww2domain |
---|
| 1385 | from Numeric import allclose |
---|
| 1386 | import os |
---|
| 1387 | |
---|
| 1388 | filename = domain.datadir+os.sep+domain.filename+'.sww' |
---|
| 1389 | domain2 = sww2domain(filename,None,fail_if_NaN=False,verbose = False) |
---|
| 1390 | #points, vertices, boundary = rectangular(15,15) |
---|
| 1391 | #domain2.boundary = boundary |
---|
| 1392 | ################### |
---|
| 1393 | ##NOW TEST IT!!! |
---|
| 1394 | ################### |
---|
| 1395 | |
---|
| 1396 | bits = ['vertex_coordinates'] |
---|
| 1397 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
| 1398 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
| 1399 | bits.append('get_quantity("%s")'%quantity) |
---|
| 1400 | |
---|
| 1401 | for bit in bits: |
---|
| 1402 | #print 'testing that domain.'+bit+' has been restored' |
---|
| 1403 | #print bit |
---|
| 1404 | #print 'done' |
---|
| 1405 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
| 1406 | |
---|
| 1407 | ###################################### |
---|
| 1408 | #Now evolve them both, just to be sure |
---|
| 1409 | ######################################x |
---|
| 1410 | visualise = False |
---|
| 1411 | #visualise = True |
---|
| 1412 | domain.visualise = visualise |
---|
| 1413 | domain.time = 0. |
---|
| 1414 | from time import sleep |
---|
| 1415 | |
---|
| 1416 | final = .1 |
---|
| 1417 | domain.set_quantity('friction', 0.1) |
---|
| 1418 | domain.store = False |
---|
| 1419 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
| 1420 | |
---|
| 1421 | |
---|
| 1422 | for t in domain.evolve(yieldstep = yiel, finaltime = final): |
---|
| 1423 | if visualise: sleep(1.) |
---|
| 1424 | #domain.write_time() |
---|
| 1425 | pass |
---|
| 1426 | |
---|
| 1427 | final = final - (domain2.starttime-domain.starttime) |
---|
| 1428 | #BUT since domain1 gets time hacked back to 0: |
---|
| 1429 | final = final + (domain2.starttime-domain.starttime) |
---|
| 1430 | |
---|
| 1431 | domain2.smooth = False |
---|
| 1432 | domain2.visualise = visualise |
---|
| 1433 | domain2.store = False |
---|
| 1434 | domain2.default_order=2 |
---|
| 1435 | domain2.set_quantity('friction', 0.1) |
---|
| 1436 | #Bed-slope and friction |
---|
| 1437 | # Boundary conditions |
---|
| 1438 | Bd2=Dirichlet_boundary([0.2,0.,0.]) |
---|
| 1439 | domain2.boundary = domain.boundary |
---|
| 1440 | #print 'domain2.boundary' |
---|
| 1441 | #print domain2.boundary |
---|
| 1442 | domain2.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
| 1443 | #domain2.set_boundary({'exterior': Bd}) |
---|
| 1444 | |
---|
| 1445 | domain2.check_integrity() |
---|
| 1446 | |
---|
| 1447 | for t in domain2.evolve(yieldstep = yiel, finaltime = final): |
---|
| 1448 | if visualise: sleep(1.) |
---|
| 1449 | #domain2.write_time() |
---|
| 1450 | pass |
---|
| 1451 | |
---|
| 1452 | ################### |
---|
| 1453 | ##NOW TEST IT!!! |
---|
| 1454 | ################## |
---|
| 1455 | |
---|
| 1456 | bits = [ 'vertex_coordinates'] |
---|
| 1457 | |
---|
| 1458 | for quantity in ['elevation','xmomentum','ymomentum']:#+domain.quantities_to_be_stored: |
---|
| 1459 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
| 1460 | bits.append('get_quantity("%s")'%quantity) |
---|
| 1461 | |
---|
| 1462 | for bit in bits: |
---|
| 1463 | #print bit |
---|
| 1464 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
| 1465 | |
---|
| 1466 | |
---|
| 1467 | def test_sww2domain2(self): |
---|
| 1468 | ################################################################## |
---|
| 1469 | #Same as previous test, but this checks how NaNs are handled. |
---|
| 1470 | ################################################################## |
---|
| 1471 | |
---|
| 1472 | |
---|
| 1473 | from mesh_factory import rectangular |
---|
| 1474 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
| 1475 | Constant_height, Time_boundary, Transmissive_boundary |
---|
| 1476 | from Numeric import array |
---|
| 1477 | |
---|
| 1478 | #Create basic mesh |
---|
| 1479 | points, vertices, boundary = rectangular(2,2) |
---|
| 1480 | |
---|
| 1481 | #Create shallow water domain |
---|
| 1482 | domain = Domain(points, vertices, boundary) |
---|
| 1483 | domain.smooth = False |
---|
| 1484 | domain.visualise = False |
---|
| 1485 | domain.store = True |
---|
| 1486 | domain.filename = 'bedslope' |
---|
| 1487 | domain.default_order=2 |
---|
| 1488 | domain.quantities_to_be_stored=['stage'] |
---|
| 1489 | |
---|
| 1490 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
| 1491 | domain.set_quantity('friction', 0.1) |
---|
| 1492 | |
---|
| 1493 | from math import sin, pi |
---|
| 1494 | Br = Reflective_boundary(domain) |
---|
| 1495 | Bt = Transmissive_boundary(domain) |
---|
| 1496 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
| 1497 | Bw = Time_boundary(domain=domain, |
---|
| 1498 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
| 1499 | |
---|
| 1500 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 1501 | |
---|
| 1502 | h = 0.05 |
---|
| 1503 | elevation = domain.quantities['elevation'].vertex_values |
---|
| 1504 | domain.set_quantity('stage', elevation + h) |
---|
| 1505 | |
---|
| 1506 | domain.check_integrity() |
---|
| 1507 | |
---|
| 1508 | for t in domain.evolve(yieldstep = 1, finaltime = 2.0): |
---|
| 1509 | pass |
---|
| 1510 | #domain.write_time() |
---|
| 1511 | |
---|
| 1512 | |
---|
| 1513 | |
---|
| 1514 | ################################## |
---|
| 1515 | #Import the file as a new domain |
---|
| 1516 | ################################## |
---|
| 1517 | from data_manager import sww2domain |
---|
| 1518 | from Numeric import allclose |
---|
| 1519 | import os |
---|
| 1520 | |
---|
| 1521 | filename = domain.datadir+os.sep+domain.filename+'.sww' |
---|
| 1522 | |
---|
| 1523 | #Fail because NaNs are present |
---|
| 1524 | try: |
---|
| 1525 | domain2 = sww2domain(filename,boundary,fail_if_NaN=True,verbose=False) |
---|
| 1526 | assert True == False |
---|
| 1527 | except: |
---|
| 1528 | #Now import it, filling NaNs to be 0 |
---|
| 1529 | filler = 0 |
---|
| 1530 | domain2 = sww2domain(filename,None,fail_if_NaN=False,NaN_filler = filler,verbose=False) |
---|
| 1531 | bits = [ 'geo_reference.get_xllcorner()', |
---|
| 1532 | 'geo_reference.get_yllcorner()', |
---|
| 1533 | 'vertex_coordinates'] |
---|
| 1534 | |
---|
| 1535 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
| 1536 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
| 1537 | bits.append('get_quantity("%s")'%quantity) |
---|
| 1538 | |
---|
| 1539 | for bit in bits: |
---|
| 1540 | # print 'testing that domain.'+bit+' has been restored' |
---|
| 1541 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
| 1542 | |
---|
| 1543 | assert max(max(domain2.get_quantity('xmomentum')))==filler |
---|
| 1544 | assert min(min(domain2.get_quantity('xmomentum')))==filler |
---|
| 1545 | assert max(max(domain2.get_quantity('ymomentum')))==filler |
---|
| 1546 | assert min(min(domain2.get_quantity('ymomentum')))==filler |
---|
| 1547 | |
---|
| 1548 | #print 'passed' |
---|
| 1549 | |
---|
| 1550 | #cleanup |
---|
| 1551 | #import os |
---|
| 1552 | #os.remove(domain.datadir+'/'+domain.filename+'.sww') |
---|
| 1553 | |
---|
| 1554 | |
---|
| 1555 | #def test_weed(self): |
---|
| 1556 | from data_manager import weed |
---|
| 1557 | |
---|
| 1558 | coordinates1 = [[0.,0.],[1.,0.],[1.,1.],[1.,0.],[2.,0.],[1.,1.]] |
---|
| 1559 | volumes1 = [[0,1,2],[3,4,5]] |
---|
| 1560 | boundary1= {(0,1): 'external',(1,2): 'not external',(2,0): 'external',(3,4): 'external',(4,5): 'external',(5,3): 'not external'} |
---|
| 1561 | coordinates2,volumes2,boundary2=weed(coordinates1,volumes1,boundary1) |
---|
| 1562 | |
---|
| 1563 | points2 = {(0.,0.):None,(1.,0.):None,(1.,1.):None,(2.,0.):None} |
---|
| 1564 | |
---|
| 1565 | assert len(points2)==len(coordinates2) |
---|
| 1566 | for i in range(len(coordinates2)): |
---|
| 1567 | coordinate = tuple(coordinates2[i]) |
---|
| 1568 | assert points2.has_key(coordinate) |
---|
| 1569 | points2[coordinate]=i |
---|
| 1570 | |
---|
| 1571 | for triangle in volumes1: |
---|
| 1572 | for coordinate in triangle: |
---|
| 1573 | assert coordinates2[points2[tuple(coordinates1[coordinate])]][0]==coordinates1[coordinate][0] |
---|
| 1574 | assert coordinates2[points2[tuple(coordinates1[coordinate])]][1]==coordinates1[coordinate][1] |
---|
| 1575 | |
---|
| 1576 | |
---|
| 1577 | #FIXME This fails - smooth makes the comparism too hard for allclose |
---|
| 1578 | def ztest_sww2domain3(self): |
---|
| 1579 | ################################################ |
---|
| 1580 | #DOMAIN.SMOOTH = TRUE !!!!!!!!!!!!!!!!!!!!!!!!!! |
---|
| 1581 | ################################################ |
---|
| 1582 | from mesh_factory import rectangular |
---|
| 1583 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
| 1584 | Constant_height, Time_boundary, Transmissive_boundary |
---|
| 1585 | from Numeric import array |
---|
| 1586 | #Create basic mesh |
---|
| 1587 | |
---|
| 1588 | yiel=0.01 |
---|
| 1589 | points, vertices, boundary = rectangular(10,10) |
---|
| 1590 | |
---|
| 1591 | #Create shallow water domain |
---|
| 1592 | domain = Domain(points, vertices, boundary) |
---|
| 1593 | domain.geo_reference = Geo_reference(56,11,11) |
---|
| 1594 | domain.smooth = True |
---|
| 1595 | domain.visualise = False |
---|
| 1596 | domain.store = True |
---|
| 1597 | domain.filename = 'bedslope' |
---|
| 1598 | domain.default_order=2 |
---|
| 1599 | #Bed-slope and friction |
---|
| 1600 | domain.set_quantity('elevation', lambda x,y: -x/3) |
---|
| 1601 | domain.set_quantity('friction', 0.1) |
---|
| 1602 | # Boundary conditions |
---|
| 1603 | from math import sin, pi |
---|
| 1604 | Br = Reflective_boundary(domain) |
---|
| 1605 | Bt = Transmissive_boundary(domain) |
---|
| 1606 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
| 1607 | Bw = Time_boundary(domain=domain, |
---|
| 1608 | f=lambda t: [(0.1*sin(t*2*pi)), 0.0, 0.0]) |
---|
| 1609 | |
---|
| 1610 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd}) |
---|
| 1611 | |
---|
| 1612 | domain.quantities_to_be_stored.extend(['xmomentum','ymomentum']) |
---|
| 1613 | #Initial condition |
---|
| 1614 | h = 0.05 |
---|
| 1615 | elevation = domain.quantities['elevation'].vertex_values |
---|
| 1616 | domain.set_quantity('stage', elevation + h) |
---|
| 1617 | #elevation = domain.get_quantity('elevation') |
---|
| 1618 | #domain.set_quantity('stage', elevation + h) |
---|
| 1619 | |
---|
| 1620 | domain.check_integrity() |
---|
| 1621 | #Evolution |
---|
| 1622 | for t in domain.evolve(yieldstep = yiel, finaltime = 0.05): |
---|
| 1623 | # domain.write_time() |
---|
| 1624 | pass |
---|
| 1625 | |
---|
| 1626 | |
---|
| 1627 | ########################################## |
---|
| 1628 | #Import the example's file as a new domain |
---|
| 1629 | ########################################## |
---|
| 1630 | from data_manager import sww2domain |
---|
| 1631 | from Numeric import allclose |
---|
| 1632 | import os |
---|
| 1633 | |
---|
| 1634 | filename = domain.datadir+os.sep+domain.filename+'.sww' |
---|
| 1635 | domain2 = sww2domain(filename,None,fail_if_NaN=False,verbose = False) |
---|
| 1636 | #points, vertices, boundary = rectangular(15,15) |
---|
| 1637 | #domain2.boundary = boundary |
---|
| 1638 | ################### |
---|
| 1639 | ##NOW TEST IT!!! |
---|
| 1640 | ################### |
---|
| 1641 | |
---|
| 1642 | #FIXME smooth domain so that they can be compared |
---|
| 1643 | |
---|
| 1644 | |
---|
| 1645 | bits = []#'vertex_coordinates'] |
---|
| 1646 | for quantity in ['elevation']+domain.quantities_to_be_stored: |
---|
| 1647 | bits.append('quantities["%s"].get_integral()'%quantity) |
---|
| 1648 | #bits.append('get_quantity("%s")'%quantity) |
---|
| 1649 | |
---|
| 1650 | for bit in bits: |
---|
| 1651 | #print 'testing that domain.'+bit+' has been restored' |
---|
| 1652 | #print bit |
---|
| 1653 | #print 'done' |
---|
| 1654 | #print ('domain.'+bit), eval('domain.'+bit) |
---|
| 1655 | #print ('domain2.'+bit), eval('domain2.'+bit) |
---|
| 1656 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit),rtol=1.0e-1,atol=1.e-3) |
---|
| 1657 | pass |
---|
| 1658 | |
---|
| 1659 | ###################################### |
---|
| 1660 | #Now evolve them both, just to be sure |
---|
| 1661 | ######################################x |
---|
| 1662 | visualise = False |
---|
| 1663 | visualise = True |
---|
| 1664 | domain.visualise = visualise |
---|
| 1665 | domain.time = 0. |
---|
| 1666 | from time import sleep |
---|
| 1667 | |
---|
| 1668 | final = .5 |
---|
| 1669 | domain.set_quantity('friction', 0.1) |
---|
| 1670 | domain.store = False |
---|
| 1671 | domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Br}) |
---|
| 1672 | |
---|
| 1673 | for t in domain.evolve(yieldstep = yiel, finaltime = final): |
---|
| 1674 | if visualise: sleep(.03) |
---|
| 1675 | #domain.write_time() |
---|
| 1676 | pass |
---|
| 1677 | |
---|
| 1678 | domain2.smooth = True |
---|
| 1679 | domain2.visualise = visualise |
---|
| 1680 | domain2.store = False |
---|
| 1681 | domain2.default_order=2 |
---|
| 1682 | domain2.set_quantity('friction', 0.1) |
---|
| 1683 | #Bed-slope and friction |
---|
| 1684 | # Boundary conditions |
---|
| 1685 | Bd2=Dirichlet_boundary([0.2,0.,0.]) |
---|
| 1686 | Br2 = Reflective_boundary(domain2) |
---|
| 1687 | domain2.boundary = domain.boundary |
---|
| 1688 | #print 'domain2.boundary' |
---|
| 1689 | #print domain2.boundary |
---|
| 1690 | domain2.set_boundary({'left': Bd2, 'right': Bd2, 'top': Bd2, 'bottom': Br2}) |
---|
| 1691 | #domain2.boundary = domain.boundary |
---|
| 1692 | #domain2.set_boundary({'exterior': Bd}) |
---|
| 1693 | |
---|
| 1694 | domain2.check_integrity() |
---|
| 1695 | |
---|
| 1696 | for t in domain2.evolve(yieldstep = yiel, finaltime = final): |
---|
| 1697 | if visualise: sleep(.03) |
---|
| 1698 | #domain2.write_time() |
---|
| 1699 | pass |
---|
| 1700 | |
---|
| 1701 | ################### |
---|
| 1702 | ##NOW TEST IT!!! |
---|
| 1703 | ################## |
---|
| 1704 | |
---|
| 1705 | bits = [ 'vertex_coordinates'] |
---|
| 1706 | |
---|
| 1707 | for quantity in ['elevation','xmomentum','ymomentum']:#+domain.quantities_to_be_stored: |
---|
| 1708 | #bits.append('quantities["%s"].get_integral()'%quantity) |
---|
| 1709 | bits.append('get_quantity("%s")'%quantity) |
---|
| 1710 | |
---|
| 1711 | for bit in bits: |
---|
| 1712 | print bit |
---|
| 1713 | assert allclose(eval('domain.'+bit),eval('domain2.'+bit)) |
---|
| 1714 | |
---|
| 1715 | |
---|
| 1716 | #------------------------------------------------------------- |
---|
| 1717 | if __name__ == "__main__": |
---|
| 1718 | suite = unittest.makeSuite(Test_Data_Manager,'test') |
---|
| 1719 | #suite = unittest.makeSuite(Test_Data_Manager,'test_sww2domain') |
---|
| 1720 | runner = unittest.TextTestRunner() |
---|
| 1721 | runner.run(suite) |
---|