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