[281] | 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 | from Numeric import zeros, array, allclose, Float |
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| 6 | from util import mean |
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| 7 | |
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| 8 | from data_manager import * |
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| 9 | from shallow_water import * |
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| 10 | from config import epsilon |
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| 11 | |
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| 12 | class dataTestCase(unittest.TestCase): |
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| 13 | def setUp(self): |
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| 14 | import time |
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| 15 | from mesh_factory import rectangular |
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| 16 | |
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| 17 | |
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| 18 | #Create basic mesh |
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| 19 | points, vertices, boundary = rectangular(2, 2) |
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| 20 | |
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| 21 | #Create shallow water domain |
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| 22 | domain = Domain(points, vertices, boundary) |
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| 23 | domain.default_order=2 |
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| 24 | |
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| 25 | |
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| 26 | #Set some field values |
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| 27 | domain.set_quantity('elevation', lambda x,y: -x) |
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| 28 | domain.set_quantity('friction', 0.03) |
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| 29 | |
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| 30 | |
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| 31 | ###################### |
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| 32 | # Boundary conditions |
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| 33 | B = Transmissive_boundary(domain) |
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| 34 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
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| 35 | |
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| 36 | |
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| 37 | ###################### |
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| 38 | #Initial condition - with jumps |
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| 39 | |
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| 40 | |
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| 41 | bed = domain.quantities['elevation'].vertex_values |
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| 42 | level = zeros(bed.shape, Float) |
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| 43 | |
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| 44 | h = 0.3 |
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| 45 | for i in range(level.shape[0]): |
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| 46 | if i % 2 == 0: |
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| 47 | level[i,:] = bed[i,:] + h |
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| 48 | else: |
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| 49 | level[i,:] = bed[i,:] |
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| 50 | |
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| 51 | domain.set_quantity('level', level) |
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| 52 | |
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| 53 | domain.distribute_to_vertices_and_edges() |
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| 54 | |
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| 55 | |
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| 56 | self.domain = domain |
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| 57 | |
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[282] | 58 | C = domain.get_vertex_coordinates() |
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| 59 | self.X = C[:,0:6:2].copy() |
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| 60 | self.Y = C[:,1:6:2].copy() |
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[281] | 61 | |
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| 62 | self.F = bed |
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| 63 | |
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| 64 | |
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| 65 | def tearDown(self): |
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| 66 | pass |
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| 67 | |
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| 68 | |
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| 69 | |
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| 70 | |
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| 71 | # def test_xya(self): |
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| 72 | # import os |
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| 73 | # from Numeric import concatenate |
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| 74 | |
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| 75 | # import time, os |
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| 76 | # from Numeric import array, zeros, allclose, Float, concatenate |
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| 77 | |
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| 78 | # domain = self.domain |
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| 79 | |
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| 80 | # domain.filename = 'datatest' + str(time.time()) |
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| 81 | # domain.format = 'xya' |
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| 82 | # domain.smooth = True |
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| 83 | |
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| 84 | # xya = get_dataobject(self.domain) |
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| 85 | # xya.store_all() |
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| 86 | |
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| 87 | |
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| 88 | # #Read back |
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| 89 | # file = open(xya.filename) |
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| 90 | # lFile = file.read().split('\n') |
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| 91 | # lFile = lFile[:-1] |
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| 92 | |
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| 93 | # file.close() |
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| 94 | # os.remove(xya.filename) |
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| 95 | |
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| 96 | # #Check contents |
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| 97 | # if domain.smooth: |
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| 98 | # self.failUnless(lFile[0] == '9 3 # <vertex #> <x> <y> [attributes]') |
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| 99 | # else: |
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| 100 | # self.failUnless(lFile[0] == '24 3 # <vertex #> <x> <y> [attributes]') |
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| 101 | |
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| 102 | # #Get smoothed field values with X and Y |
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| 103 | # X,Y,F,V = domain.get_vertex_values(xy=True, value_array='field_values', |
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| 104 | # indices = (0,1), precision = Float) |
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| 105 | |
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| 106 | |
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| 107 | # Q,V = domain.get_vertex_values(xy=False, value_array='conserved_quantities', |
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| 108 | # indices = (0,), precision = Float) |
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| 109 | |
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| 110 | |
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| 111 | |
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| 112 | # for i, line in enumerate(lFile[1:]): |
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| 113 | # fields = line.split() |
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| 114 | |
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| 115 | # assert len(fields) == 5 |
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| 116 | |
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| 117 | # assert allclose(float(fields[0]), X[i]) |
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| 118 | # assert allclose(float(fields[1]), Y[i]) |
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| 119 | # assert allclose(float(fields[2]), F[i,0]) |
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| 120 | # assert allclose(float(fields[3]), Q[i,0]) |
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| 121 | # assert allclose(float(fields[4]), F[i,1]) |
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| 122 | |
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| 123 | |
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| 124 | |
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| 125 | |
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| 126 | def test_sww_constant(self): |
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| 127 | """Test that constant sww information can be written correctly |
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| 128 | (non smooth) |
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| 129 | """ |
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| 130 | |
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| 131 | import time, os |
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| 132 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 133 | from Scientific.IO.NetCDF import NetCDFFile |
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| 134 | |
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| 135 | self.domain.filename = 'datatest' + str(time.time()) |
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| 136 | self.domain.format = 'sww' |
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| 137 | self.domain.smooth = False |
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| 138 | |
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| 139 | sww = get_dataobject(self.domain) |
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| 140 | sww.store_connectivity() |
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| 141 | |
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| 142 | #Check contents |
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| 143 | #Get NetCDF |
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| 144 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 145 | |
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| 146 | # Get the variables |
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| 147 | x = fid.variables['x'] |
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| 148 | y = fid.variables['y'] |
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| 149 | z = fid.variables['z'] |
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| 150 | |
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| 151 | volumes = fid.variables['volumes'] |
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| 152 | |
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[282] | 153 | |
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| 154 | assert allclose (x[:], self.X.flat) |
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| 155 | assert allclose (y[:], self.Y.flat) |
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[281] | 156 | assert allclose (z[:], self.F.flat) |
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| 157 | |
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| 158 | V = volumes |
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| 159 | |
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| 160 | P = len(self.domain) |
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| 161 | for k in range(P): |
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[282] | 162 | assert V[k, 0] == 3*k |
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| 163 | assert V[k, 1] == 3*k+1 |
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| 164 | assert V[k, 2] == 3*k+2 |
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[281] | 165 | |
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| 166 | |
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| 167 | fid.close() |
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| 168 | |
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| 169 | #Cleanup |
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| 170 | os.remove(sww.filename) |
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| 171 | |
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| 172 | |
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| 173 | def test_sww_constant_smooth(self): |
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| 174 | """Test that constant sww information can be written correctly |
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| 175 | (non smooth) |
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| 176 | """ |
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| 177 | |
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| 178 | import time, os |
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| 179 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 180 | from Scientific.IO.NetCDF import NetCDFFile |
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| 181 | |
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| 182 | self.domain.filename = 'datatest' + str(time.time()) |
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| 183 | self.domain.format = 'sww' |
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| 184 | self.domain.smooth = True |
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| 185 | |
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| 186 | sww = get_dataobject(self.domain) |
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| 187 | sww.store_connectivity() |
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| 188 | |
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| 189 | #Check contents |
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| 190 | #Get NetCDF |
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| 191 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 192 | |
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| 193 | # Get the variables |
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| 194 | x = fid.variables['x'] |
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| 195 | y = fid.variables['y'] |
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| 196 | z = fid.variables['z'] |
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| 197 | |
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| 198 | volumes = fid.variables['volumes'] |
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| 199 | |
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| 200 | X = x[:] |
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| 201 | Y = y[:] |
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| 202 | |
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| 203 | assert allclose([X[0], Y[0]], array([0.0, 0.0])) |
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| 204 | assert allclose([X[1], Y[1]], array([0.0, 0.5])) |
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| 205 | assert allclose([X[2], Y[2]], array([0.0, 1.0])) |
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| 206 | |
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| 207 | assert allclose([X[4], Y[4]], array([0.5, 0.5])) |
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| 208 | |
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| 209 | assert allclose([X[7], Y[7]], array([1.0, 0.5])) |
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| 210 | |
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| 211 | Z = z[:] |
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| 212 | assert Z[4] == -0.5 |
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| 213 | |
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| 214 | V = volumes |
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| 215 | assert V[2,0] == 4 |
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| 216 | assert V[2,1] == 5 |
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| 217 | assert V[2,2] == 1 |
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| 218 | |
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| 219 | assert V[4,0] == 6 |
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| 220 | assert V[4,1] == 7 |
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| 221 | assert V[4,2] == 3 |
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| 222 | |
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[353] | 223 | |
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[281] | 224 | fid.close() |
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| 225 | |
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| 226 | #Cleanup |
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| 227 | os.remove(sww.filename) |
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| 228 | |
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| 229 | |
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| 230 | |
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| 231 | def test_sww_variable(self): |
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| 232 | """Test that sww information can be written correctly |
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| 233 | """ |
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| 234 | |
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| 235 | import time, os |
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| 236 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 237 | from Scientific.IO.NetCDF import NetCDFFile |
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| 238 | |
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| 239 | self.domain.filename = 'datatest' + str(time.time()) |
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| 240 | self.domain.format = 'sww' |
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| 241 | self.domain.smooth = True |
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| 242 | self.domain.reduction = mean |
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| 243 | |
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| 244 | sww = get_dataobject(self.domain) |
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| 245 | sww.store_connectivity() |
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| 246 | sww.store_timestep('level') |
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| 247 | |
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| 248 | #Check contents |
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| 249 | #Get NetCDF |
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| 250 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 251 | |
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| 252 | |
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| 253 | # Get the variables |
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| 254 | x = fid.variables['x'] |
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| 255 | y = fid.variables['y'] |
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| 256 | z = fid.variables['z'] |
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| 257 | time = fid.variables['time'] |
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| 258 | stage = fid.variables['stage'] |
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[353] | 259 | |
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[281] | 260 | |
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| 261 | Q = self.domain.quantities['level'] |
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| 262 | Q0 = Q.vertex_values[:,0] |
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| 263 | Q1 = Q.vertex_values[:,1] |
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| 264 | Q2 = Q.vertex_values[:,2] |
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| 265 | |
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| 266 | A = stage[0,:] |
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| 267 | #print A[0], (Q2[0,0] + Q1[1,0])/2 |
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| 268 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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| 269 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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| 270 | assert allclose(A[2], Q0[3]) |
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| 271 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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| 272 | |
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| 273 | #Center point |
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| 274 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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| 275 | Q0[5] + Q2[6] + Q1[7])/6) |
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| 276 | |
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| 277 | |
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| 278 | |
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| 279 | fid.close() |
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| 280 | |
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| 281 | #Cleanup |
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| 282 | os.remove(sww.filename) |
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| 283 | |
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| 284 | |
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[282] | 285 | def test_sww_variable2(self): |
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| 286 | """Test that sww information can be written correctly |
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| 287 | multiple timesteps. Use average as reduction operator |
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| 288 | """ |
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[281] | 289 | |
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[282] | 290 | import time, os |
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| 291 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 292 | from Scientific.IO.NetCDF import NetCDFFile |
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[281] | 293 | |
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[282] | 294 | self.domain.filename = 'datatest' + str(time.time()) |
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| 295 | self.domain.format = 'sww' |
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| 296 | self.domain.smooth = True |
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[281] | 297 | |
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[282] | 298 | self.domain.reduction = mean |
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| 299 | |
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| 300 | sww = get_dataobject(self.domain) |
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| 301 | sww.store_connectivity() |
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| 302 | sww.store_timestep('level') |
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| 303 | self.domain.evolve_to_end(finaltime = 0.01) |
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| 304 | sww.store_timestep('level') |
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[281] | 305 | |
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| 306 | |
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[282] | 307 | #Check contents |
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| 308 | #Get NetCDF |
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| 309 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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[281] | 310 | |
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[282] | 311 | # Get the variables |
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| 312 | x = fid.variables['x'] |
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| 313 | y = fid.variables['y'] |
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| 314 | z = fid.variables['z'] |
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| 315 | time = fid.variables['time'] |
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| 316 | stage = fid.variables['stage'] |
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[281] | 317 | |
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[282] | 318 | #Check values |
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| 319 | Q = self.domain.quantities['level'] |
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| 320 | Q0 = Q.vertex_values[:,0] |
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| 321 | Q1 = Q.vertex_values[:,1] |
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| 322 | Q2 = Q.vertex_values[:,2] |
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[281] | 323 | |
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[282] | 324 | A = stage[1,:] |
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| 325 | assert allclose(A[0], (Q2[0] + Q1[1])/2) |
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| 326 | assert allclose(A[1], (Q0[1] + Q1[3] + Q2[2])/3) |
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| 327 | assert allclose(A[2], Q0[3]) |
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| 328 | assert allclose(A[3], (Q0[0] + Q1[5] + Q2[4])/3) |
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[281] | 329 | |
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[282] | 330 | #Center point |
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| 331 | assert allclose(A[4], (Q1[0] + Q2[1] + Q0[2] +\ |
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| 332 | Q0[5] + Q2[6] + Q1[7])/6) |
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| 333 | |
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| 334 | |
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| 335 | |
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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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[281] | 342 | |
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[282] | 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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[281] | 347 | |
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[282] | 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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[281] | 351 | |
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[282] | 352 | self.domain.filename = 'datatest' + str(time.time()) |
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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('level') |
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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('level') |
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[281] | 363 | |
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| 364 | |
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| 365 | |
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[282] | 366 | #Check contents |
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| 367 | #Get NetCDF |
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| 368 | fid = NetCDFFile(sww.filename, 'r') #Open existing file for append |
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| 369 | |
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[281] | 370 | |
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[282] | 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['z'] |
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| 375 | time = fid.variables['time'] |
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| 376 | stage = fid.variables['stage'] |
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[281] | 377 | |
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[282] | 378 | #Check values |
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| 379 | #Check values |
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| 380 | Q = self.domain.quantities['level'] |
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| 381 | Q0 = Q.vertex_values[:,0] |
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| 382 | Q1 = Q.vertex_values[:,1] |
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| 383 | Q2 = Q.vertex_values[:,2] |
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[281] | 384 | |
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[282] | 385 | A = stage[1,:] |
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| 386 | assert allclose(A[0], min(Q2[0], Q1[1])) |
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| 387 | assert allclose(A[1], min(Q0[1], Q1[3], Q2[2])) |
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| 388 | assert allclose(A[2], Q0[3]) |
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| 389 | assert allclose(A[3], min(Q0[0], Q1[5], Q2[4])) |
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[281] | 390 | |
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[282] | 391 | #Center point |
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| 392 | assert allclose(A[4], min(Q1[0], Q2[1], Q0[2],\ |
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| 393 | Q0[5], Q2[6], Q1[7])) |
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| 394 | |
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| 395 | |
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| 396 | fid.close() |
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| 397 | |
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| 398 | #Cleanup |
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| 399 | os.remove(sww.filename) |
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[281] | 400 | |
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| 401 | |
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[353] | 402 | def test_sww_DSG(self): |
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| 403 | """Not a test, rather a look at the sww format |
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| 404 | """ |
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| 405 | |
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| 406 | import time, os |
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| 407 | from Numeric import array, zeros, allclose, Float, concatenate |
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| 408 | from Scientific.IO.NetCDF import NetCDFFile |
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| 409 | |
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| 410 | self.domain.filename = 'datatest' + str(time.time()) |
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| 411 | self.domain.format = 'sww' |
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| 412 | self.domain.smooth = True |
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| 413 | self.domain.reduction = mean |
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| 414 | |
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| 415 | sww = get_dataobject(self.domain) |
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| 416 | sww.store_connectivity() |
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| 417 | sww.store_timestep('level') |
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| 418 | |
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| 419 | #Check contents |
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| 420 | #Get NetCDF |
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| 421 | fid = NetCDFFile(sww.filename, 'r') |
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| 422 | |
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| 423 | # Get the variables |
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| 424 | x = fid.variables['x'] |
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| 425 | y = fid.variables['y'] |
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| 426 | z = fid.variables['z'] |
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| 427 | |
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| 428 | volumes = fid.variables['volumes'] |
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| 429 | time = fid.variables['time'] |
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| 430 | |
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| 431 | # 2D |
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| 432 | stage = fid.variables['stage'] |
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| 433 | |
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| 434 | X = x[:] |
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| 435 | Y = y[:] |
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| 436 | Z = z[:] |
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| 437 | V = volumes[:] |
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| 438 | T = time[:] |
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| 439 | S = stage[:,:] |
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| 440 | |
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| 441 | # print "****************************" |
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| 442 | # print "X ",X |
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| 443 | # print "****************************" |
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| 444 | # print "Y ",Y |
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| 445 | # print "****************************" |
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| 446 | # print "Z ",Z |
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| 447 | # print "****************************" |
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| 448 | # print "V ",V |
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| 449 | # print "****************************" |
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| 450 | # print "Time ",T |
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| 451 | # print "****************************" |
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| 452 | # print "Stage ",S |
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| 453 | # print "****************************" |
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| 454 | |
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| 455 | |
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| 456 | |
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| 457 | |
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| 458 | fid.close() |
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| 459 | |
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| 460 | #Cleanup |
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| 461 | os.remove(sww.filename) |
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| 462 | |
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[281] | 463 | #------------------------------------------------------------- |
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| 464 | if __name__ == "__main__": |
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| 465 | suite = unittest.makeSuite(dataTestCase,'test') |
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| 466 | runner = unittest.TextTestRunner() |
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| 467 | runner.run(suite) |
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