[7744] | 1 | import unittest, os |
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| 2 | import numpy as num |
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| 3 | |
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| 4 | from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular |
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| 5 | from anuga.shallow_water.shallow_water_domain import Domain |
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| 6 | from anuga.config import netcdf_mode_r |
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| 7 | |
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| 8 | from anuga.coordinate_transforms.geo_reference import Geo_reference, \ |
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| 9 | DEFAULT_ZONE |
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| 10 | |
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[7776] | 11 | from anuga.file.sww import SWW_file |
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[7744] | 12 | |
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| 13 | # boundary functions |
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| 14 | from anuga.shallow_water.boundaries import Reflective_boundary, \ |
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| 15 | Field_boundary, Transmissive_momentum_set_stage_boundary, \ |
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| 16 | Transmissive_stage_zero_momentum_boundary |
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| 17 | from anuga.abstract_2d_finite_volumes.generic_boundary_conditions\ |
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| 18 | import Transmissive_boundary, Dirichlet_boundary, \ |
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| 19 | Time_boundary, File_boundary, AWI_boundary |
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| 20 | |
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| 21 | # local modules |
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| 22 | from sww2dem import sww2dem |
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| 23 | |
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| 24 | class Test_Sww2Dem(unittest.TestCase): |
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| 25 | def setUp(self): |
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| 26 | import time |
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| 27 | from mesh_factory import rectangular |
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| 28 | |
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| 29 | # Create basic mesh |
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| 30 | points, vertices, boundary = rectangular(2, 2) |
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| 31 | |
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| 32 | # Create shallow water domain |
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| 33 | domain = Domain(points, vertices, boundary) |
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| 34 | domain.default_order = 2 |
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| 35 | |
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| 36 | # Set some field values |
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| 37 | domain.set_quantity('elevation', lambda x,y: -x) |
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| 38 | domain.set_quantity('friction', 0.03) |
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| 39 | |
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| 40 | |
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| 41 | ###################### |
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| 42 | # Boundary conditions |
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| 43 | B = Transmissive_boundary(domain) |
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| 44 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
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| 45 | |
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| 46 | |
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| 47 | ###################### |
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| 48 | #Initial condition - with jumps |
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| 49 | bed = domain.quantities['elevation'].vertex_values |
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| 50 | stage = num.zeros(bed.shape, num.float) |
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| 51 | |
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| 52 | h = 0.3 |
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| 53 | for i in range(stage.shape[0]): |
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| 54 | if i % 2 == 0: |
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| 55 | stage[i,:] = bed[i,:] + h |
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| 56 | else: |
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| 57 | stage[i,:] = bed[i,:] |
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| 58 | |
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| 59 | domain.set_quantity('stage', stage) |
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| 60 | |
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| 61 | |
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| 62 | domain.distribute_to_vertices_and_edges() |
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| 63 | self.domain = domain |
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| 64 | |
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| 65 | C = domain.get_vertex_coordinates() |
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| 66 | self.X = C[:,0:6:2].copy() |
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| 67 | self.Y = C[:,1:6:2].copy() |
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| 68 | |
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| 69 | self.F = bed |
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| 70 | self.verbose = False |
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| 71 | |
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| 72 | |
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| 73 | def tearDown(self): |
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| 74 | pass |
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| 75 | |
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| 76 | |
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| 77 | def test_sww2dem_asc_elevation_depth(self): |
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| 78 | """test_sww2dem_asc_elevation_depth |
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| 79 | |
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| 80 | Test that sww information can be converted correctly to asc/prj |
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| 81 | format readable by e.g. ArcView |
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| 82 | |
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| 83 | Also check geo_reference is correct |
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| 84 | """ |
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| 85 | |
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| 86 | import time, os |
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| 87 | from Scientific.IO.NetCDF import NetCDFFile |
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| 88 | |
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| 89 | # Setup |
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| 90 | self.domain.set_name('datatest') |
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| 91 | |
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| 92 | prjfile = self.domain.get_name() + '_elevation.prj' |
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| 93 | ascfile = self.domain.get_name() + '_elevation.asc' |
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| 94 | swwfile = self.domain.get_name() + '.sww' |
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| 95 | |
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| 96 | self.domain.set_datadir('.') |
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| 97 | self.domain.format = 'sww' |
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| 98 | self.domain.smooth = True |
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| 99 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
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| 100 | self.domain.set_quantity('stage', 1.0) |
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| 101 | |
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| 102 | self.domain.geo_reference = Geo_reference(56, 308500, 6189000) |
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| 103 | |
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| 104 | sww = SWW_file(self.domain) |
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| 105 | sww.store_connectivity() |
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| 106 | sww.store_timestep() |
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| 107 | |
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| 108 | |
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| 109 | self.domain.evolve_to_end(finaltime = 0.01) |
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| 110 | sww.store_timestep() |
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| 111 | |
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| 112 | cellsize = 0.25 |
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| 113 | #Check contents |
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| 114 | #Get NetCDF |
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| 115 | |
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| 116 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
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| 117 | |
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| 118 | # Get the variables |
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| 119 | x = fid.variables['x'][:] |
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| 120 | y = fid.variables['y'][:] |
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| 121 | z = fid.variables['elevation'][:] |
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| 122 | time = fid.variables['time'][:] |
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| 123 | stage = fid.variables['stage'][:] |
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| 124 | |
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| 125 | # Check georeferencig: zone, xllcorner and yllcorner |
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| 126 | assert fid.zone[0] == 56 |
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| 127 | assert fid.xllcorner[0] == 308500 |
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| 128 | assert fid.yllcorner[0] == 6189000 |
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| 129 | |
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| 130 | |
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| 131 | fid.close() |
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| 132 | |
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| 133 | #Export to ascii/prj files |
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| 134 | sww2dem(self.domain.get_name(), |
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| 135 | quantity = 'elevation', |
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| 136 | cellsize = cellsize, |
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| 137 | number_of_decimal_places = 9, |
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| 138 | verbose = self.verbose, |
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| 139 | format = 'asc') |
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| 140 | |
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| 141 | #Check prj (meta data) |
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| 142 | prjid = open(prjfile) |
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| 143 | lines = prjid.readlines() |
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| 144 | prjid.close() |
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| 145 | |
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| 146 | L = lines[0].strip().split() |
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| 147 | assert L[0].strip().lower() == 'projection' |
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| 148 | assert L[1].strip().lower() == 'utm' |
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| 149 | |
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| 150 | L = lines[1].strip().split() |
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| 151 | assert L[0].strip().lower() == 'zone' |
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| 152 | assert L[1].strip().lower() == '56' |
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| 153 | |
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| 154 | L = lines[2].strip().split() |
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| 155 | assert L[0].strip().lower() == 'datum' |
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| 156 | assert L[1].strip().lower() == 'wgs84' |
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| 157 | |
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| 158 | L = lines[3].strip().split() |
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| 159 | assert L[0].strip().lower() == 'zunits' |
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| 160 | assert L[1].strip().lower() == 'no' |
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| 161 | |
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| 162 | L = lines[4].strip().split() |
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| 163 | assert L[0].strip().lower() == 'units' |
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| 164 | assert L[1].strip().lower() == 'meters' |
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| 165 | |
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| 166 | L = lines[5].strip().split() |
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| 167 | assert L[0].strip().lower() == 'spheroid' |
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| 168 | assert L[1].strip().lower() == 'wgs84' |
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| 169 | |
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| 170 | L = lines[6].strip().split() |
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| 171 | assert L[0].strip().lower() == 'xshift' |
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| 172 | assert L[1].strip().lower() == '500000' |
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| 173 | |
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| 174 | L = lines[7].strip().split() |
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| 175 | assert L[0].strip().lower() == 'yshift' |
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| 176 | assert L[1].strip().lower() == '10000000' |
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| 177 | |
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| 178 | L = lines[8].strip().split() |
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| 179 | assert L[0].strip().lower() == 'parameters' |
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| 180 | |
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| 181 | |
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| 182 | #Check asc file |
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| 183 | ascid = open(ascfile) |
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| 184 | lines = ascid.readlines() |
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| 185 | ascid.close() |
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| 186 | |
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| 187 | L = lines[0].strip().split() |
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| 188 | assert L[0].strip().lower() == 'ncols' |
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| 189 | assert L[1].strip().lower() == '5' |
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| 190 | |
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| 191 | L = lines[1].strip().split() |
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| 192 | assert L[0].strip().lower() == 'nrows' |
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| 193 | assert L[1].strip().lower() == '5' |
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| 194 | |
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| 195 | L = lines[2].strip().split() |
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| 196 | assert L[0].strip().lower() == 'xllcorner' |
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| 197 | assert num.allclose(float(L[1].strip().lower()), 308500) |
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| 198 | |
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| 199 | L = lines[3].strip().split() |
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| 200 | assert L[0].strip().lower() == 'yllcorner' |
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| 201 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
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| 202 | |
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| 203 | L = lines[4].strip().split() |
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| 204 | assert L[0].strip().lower() == 'cellsize' |
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| 205 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
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| 206 | |
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| 207 | L = lines[5].strip().split() |
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| 208 | assert L[0].strip() == 'NODATA_value' |
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| 209 | assert L[1].strip().lower() == '-9999' |
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| 210 | |
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| 211 | #Check grid values |
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| 212 | for j in range(5): |
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| 213 | L = lines[6+j].strip().split() |
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| 214 | y = (4-j) * cellsize |
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| 215 | for i in range(5): |
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| 216 | assert num.allclose(float(L[i]), -i*cellsize - y) |
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| 217 | |
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| 218 | #Cleanup |
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| 219 | os.remove(prjfile) |
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| 220 | os.remove(ascfile) |
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| 221 | |
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| 222 | #Export to ascii/prj files |
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| 223 | sww2dem(self.domain.get_name(), |
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| 224 | quantity = 'depth', |
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| 225 | cellsize = cellsize, |
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| 226 | number_of_decimal_places = 9, |
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| 227 | verbose = self.verbose, |
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| 228 | format = 'asc') |
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| 229 | |
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| 230 | #Check asc file |
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| 231 | ascfile = self.domain.get_name() + '_depth.asc' |
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| 232 | prjfile = self.domain.get_name() + '_depth.prj' |
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| 233 | ascid = open(ascfile) |
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| 234 | lines = ascid.readlines() |
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| 235 | ascid.close() |
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| 236 | |
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| 237 | L = lines[0].strip().split() |
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| 238 | assert L[0].strip().lower() == 'ncols' |
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| 239 | assert L[1].strip().lower() == '5' |
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| 240 | |
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| 241 | L = lines[1].strip().split() |
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| 242 | assert L[0].strip().lower() == 'nrows' |
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| 243 | assert L[1].strip().lower() == '5' |
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| 244 | |
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| 245 | L = lines[2].strip().split() |
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| 246 | assert L[0].strip().lower() == 'xllcorner' |
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| 247 | assert num.allclose(float(L[1].strip().lower()), 308500) |
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| 248 | |
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| 249 | L = lines[3].strip().split() |
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| 250 | assert L[0].strip().lower() == 'yllcorner' |
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| 251 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
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| 252 | |
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| 253 | L = lines[4].strip().split() |
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| 254 | assert L[0].strip().lower() == 'cellsize' |
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| 255 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
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| 256 | |
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| 257 | L = lines[5].strip().split() |
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| 258 | assert L[0].strip() == 'NODATA_value' |
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| 259 | assert L[1].strip().lower() == '-9999' |
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| 260 | |
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| 261 | #Check grid values |
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| 262 | for j in range(5): |
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| 263 | L = lines[6+j].strip().split() |
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| 264 | y = (4-j) * cellsize |
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| 265 | for i in range(5): |
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| 266 | assert num.allclose(float(L[i]), 1 - (-i*cellsize - y)) |
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| 267 | |
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| 268 | |
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| 269 | #Cleanup |
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| 270 | os.remove(prjfile) |
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| 271 | os.remove(ascfile) |
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| 272 | os.remove(swwfile) |
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| 273 | |
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| 274 | |
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| 275 | |
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| 276 | def test_sww2dem_larger(self): |
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| 277 | """Test that sww information can be converted correctly to asc/prj |
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| 278 | format readable by e.g. ArcView. Here: |
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| 279 | |
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| 280 | ncols 11 |
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| 281 | nrows 11 |
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| 282 | xllcorner 308500 |
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| 283 | yllcorner 6189000 |
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| 284 | cellsize 10.000000 |
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| 285 | NODATA_value -9999 |
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| 286 | -100 -110 -120 -130 -140 -150 -160 -170 -180 -190 -200 |
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| 287 | -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 -190 |
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| 288 | -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 |
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| 289 | -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 |
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| 290 | -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 |
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| 291 | -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 |
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| 292 | -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 |
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| 293 | -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 |
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| 294 | -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 |
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| 295 | -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 |
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| 296 | 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 |
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| 297 | |
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| 298 | """ |
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| 299 | |
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| 300 | import time, os |
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| 301 | from Scientific.IO.NetCDF import NetCDFFile |
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| 302 | |
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| 303 | #Create basic mesh (100m x 100m) |
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| 304 | points, vertices, boundary = rectangular(2, 2, 100, 100) |
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| 305 | |
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| 306 | #Create shallow water domain |
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| 307 | domain = Domain(points, vertices, boundary) |
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| 308 | domain.default_order = 2 |
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| 309 | |
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| 310 | domain.set_name('datatest') |
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| 311 | |
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| 312 | prjfile = domain.get_name() + '_elevation.prj' |
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| 313 | ascfile = domain.get_name() + '_elevation.asc' |
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| 314 | swwfile = domain.get_name() + '.sww' |
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| 315 | |
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| 316 | domain.set_datadir('.') |
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| 317 | domain.format = 'sww' |
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| 318 | domain.smooth = True |
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| 319 | domain.geo_reference = Geo_reference(56, 308500, 6189000) |
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| 320 | |
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| 321 | # |
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| 322 | domain.set_quantity('elevation', lambda x,y: -x-y) |
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| 323 | domain.set_quantity('stage', 0) |
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| 324 | |
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| 325 | B = Transmissive_boundary(domain) |
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| 326 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
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| 327 | |
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| 328 | |
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| 329 | # |
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| 330 | sww = SWW_file(domain) |
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| 331 | sww.store_connectivity() |
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| 332 | sww.store_timestep() |
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| 333 | |
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| 334 | domain.tight_slope_limiters = 1 |
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| 335 | domain.evolve_to_end(finaltime = 0.01) |
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| 336 | sww.store_timestep() |
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| 337 | |
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| 338 | cellsize = 10 #10m grid |
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| 339 | |
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| 340 | |
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| 341 | #Check contents |
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| 342 | #Get NetCDF |
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| 343 | |
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| 344 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
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| 345 | |
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| 346 | # Get the variables |
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| 347 | x = fid.variables['x'][:] |
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| 348 | y = fid.variables['y'][:] |
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| 349 | z = fid.variables['elevation'][:] |
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| 350 | time = fid.variables['time'][:] |
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| 351 | stage = fid.variables['stage'][:] |
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| 352 | |
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| 353 | |
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| 354 | #Export to ascii/prj files |
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| 355 | sww2dem(domain.get_name(), |
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| 356 | quantity = 'elevation', |
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| 357 | cellsize = cellsize, |
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| 358 | number_of_decimal_places = 9, |
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| 359 | verbose = self.verbose, |
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| 360 | format = 'asc', |
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| 361 | block_size=2) |
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| 362 | |
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| 363 | |
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| 364 | #Check prj (meta data) |
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| 365 | prjid = open(prjfile) |
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| 366 | lines = prjid.readlines() |
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| 367 | prjid.close() |
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| 368 | |
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| 369 | L = lines[0].strip().split() |
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| 370 | assert L[0].strip().lower() == 'projection' |
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| 371 | assert L[1].strip().lower() == 'utm' |
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| 372 | |
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| 373 | L = lines[1].strip().split() |
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| 374 | assert L[0].strip().lower() == 'zone' |
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| 375 | assert L[1].strip().lower() == '56' |
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| 376 | |
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| 377 | L = lines[2].strip().split() |
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| 378 | assert L[0].strip().lower() == 'datum' |
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| 379 | assert L[1].strip().lower() == 'wgs84' |
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| 380 | |
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| 381 | L = lines[3].strip().split() |
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| 382 | assert L[0].strip().lower() == 'zunits' |
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| 383 | assert L[1].strip().lower() == 'no' |
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| 384 | |
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| 385 | L = lines[4].strip().split() |
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| 386 | assert L[0].strip().lower() == 'units' |
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| 387 | assert L[1].strip().lower() == 'meters' |
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| 388 | |
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| 389 | L = lines[5].strip().split() |
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| 390 | assert L[0].strip().lower() == 'spheroid' |
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| 391 | assert L[1].strip().lower() == 'wgs84' |
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| 392 | |
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| 393 | L = lines[6].strip().split() |
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| 394 | assert L[0].strip().lower() == 'xshift' |
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| 395 | assert L[1].strip().lower() == '500000' |
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| 396 | |
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| 397 | L = lines[7].strip().split() |
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| 398 | assert L[0].strip().lower() == 'yshift' |
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| 399 | assert L[1].strip().lower() == '10000000' |
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| 400 | |
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| 401 | L = lines[8].strip().split() |
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| 402 | assert L[0].strip().lower() == 'parameters' |
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| 403 | |
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| 404 | |
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| 405 | #Check asc file |
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| 406 | ascid = open(ascfile) |
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| 407 | lines = ascid.readlines() |
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| 408 | ascid.close() |
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| 409 | |
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| 410 | L = lines[0].strip().split() |
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| 411 | assert L[0].strip().lower() == 'ncols' |
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| 412 | assert L[1].strip().lower() == '11' |
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| 413 | |
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| 414 | L = lines[1].strip().split() |
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| 415 | assert L[0].strip().lower() == 'nrows' |
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| 416 | assert L[1].strip().lower() == '11' |
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| 417 | |
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| 418 | L = lines[2].strip().split() |
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| 419 | assert L[0].strip().lower() == 'xllcorner' |
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| 420 | assert num.allclose(float(L[1].strip().lower()), 308500) |
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| 421 | |
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| 422 | L = lines[3].strip().split() |
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| 423 | assert L[0].strip().lower() == 'yllcorner' |
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| 424 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
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| 425 | |
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| 426 | L = lines[4].strip().split() |
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| 427 | assert L[0].strip().lower() == 'cellsize' |
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| 428 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
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| 429 | |
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| 430 | L = lines[5].strip().split() |
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| 431 | assert L[0].strip() == 'NODATA_value' |
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| 432 | assert L[1].strip().lower() == '-9999' |
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| 433 | |
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| 434 | #Check grid values (FIXME: Use same strategy for other sww2dem tests) |
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| 435 | for i, line in enumerate(lines[6:]): |
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| 436 | for j, value in enumerate( line.split() ): |
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| 437 | assert num.allclose(float(value), -(10-i+j)*cellsize, |
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| 438 | atol=1.0e-12, rtol=1.0e-12) |
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| 439 | |
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| 440 | # Note: Equality can be obtained in this case, |
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| 441 | # but it is better to use allclose. |
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| 442 | #assert float(value) == -(10-i+j)*cellsize |
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| 443 | |
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| 444 | |
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| 445 | fid.close() |
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| 446 | |
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| 447 | #Cleanup |
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| 448 | os.remove(prjfile) |
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| 449 | os.remove(ascfile) |
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| 450 | os.remove(swwfile) |
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| 451 | |
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| 452 | |
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| 453 | |
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| 454 | def test_sww2dem_larger_zero(self): |
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| 455 | """Test that sww information can be converted correctly to asc/prj |
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| 456 | format readable by e.g. Arcview. This example has rows with a |
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| 457 | large number of zeros |
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| 458 | |
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| 459 | ncols 2001 |
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| 460 | nrows 2 |
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| 461 | xllcorner 308500 |
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| 462 | yllcorner 6189000 |
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| 463 | cellsize 1.000000 |
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| 464 | NODATA_value -9999 |
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| 465 | 0.0 .... |
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| 466 | """ |
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| 467 | |
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| 468 | import time, os |
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| 469 | from Scientific.IO.NetCDF import NetCDFFile |
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| 470 | |
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| 471 | #Setup |
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| 472 | |
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| 473 | from mesh_factory import rectangular_cross |
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| 474 | |
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| 475 | #Create basic mesh (100m x 100m) |
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| 476 | points, vertices, boundary = rectangular_cross(2000, 1, 2000.0, 1.0) |
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| 477 | |
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| 478 | #Create shallow water domain |
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| 479 | domain = Domain(points, vertices, boundary) |
---|
| 480 | domain.default_order = 1 |
---|
| 481 | |
---|
| 482 | domain.set_name('datatest') |
---|
| 483 | |
---|
| 484 | prjfile = domain.get_name() + '_elevation.prj' |
---|
| 485 | ascfile = domain.get_name() + '_elevation.asc' |
---|
| 486 | swwfile = domain.get_name() + '.sww' |
---|
| 487 | |
---|
| 488 | domain.set_datadir('.') |
---|
| 489 | domain.format = 'sww' |
---|
| 490 | domain.smooth = True |
---|
| 491 | domain.geo_reference = Geo_reference(56, 308500, 6189000) |
---|
| 492 | |
---|
| 493 | # |
---|
| 494 | domain.set_quantity('elevation', 0) |
---|
| 495 | domain.set_quantity('stage', 0) |
---|
| 496 | |
---|
| 497 | B = Transmissive_boundary(domain) |
---|
| 498 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
---|
| 499 | |
---|
| 500 | |
---|
| 501 | # |
---|
| 502 | sww = SWW_file(domain) |
---|
| 503 | sww.store_connectivity() |
---|
| 504 | sww.store_timestep() |
---|
| 505 | |
---|
| 506 | domain.tight_slope_limiters = 1 |
---|
| 507 | domain.evolve_to_end(finaltime = 0.01) |
---|
| 508 | sww.store_timestep() |
---|
| 509 | |
---|
| 510 | cellsize = 1.0 #0.1 grid |
---|
| 511 | |
---|
| 512 | |
---|
| 513 | #Check contents |
---|
| 514 | #Get NetCDF |
---|
| 515 | |
---|
| 516 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
---|
| 517 | |
---|
| 518 | # Get the variables |
---|
| 519 | x = fid.variables['x'][:] |
---|
| 520 | y = fid.variables['y'][:] |
---|
| 521 | z = fid.variables['elevation'][:] |
---|
| 522 | time = fid.variables['time'][:] |
---|
| 523 | stage = fid.variables['stage'][:] |
---|
| 524 | |
---|
| 525 | |
---|
| 526 | #Export to ascii/prj files |
---|
| 527 | sww2dem(domain.get_name(), |
---|
| 528 | quantity = 'elevation', |
---|
| 529 | cellsize = cellsize, |
---|
| 530 | number_of_decimal_places = 9, |
---|
| 531 | verbose = self.verbose, |
---|
| 532 | format = 'asc', |
---|
| 533 | block_size=2) |
---|
| 534 | |
---|
| 535 | |
---|
| 536 | #Check prj (meta data) |
---|
| 537 | prjid = open(prjfile) |
---|
| 538 | lines = prjid.readlines() |
---|
| 539 | prjid.close() |
---|
| 540 | |
---|
| 541 | |
---|
| 542 | L = lines[0].strip().split() |
---|
| 543 | assert L[0].strip().lower() == 'projection' |
---|
| 544 | assert L[1].strip().lower() == 'utm' |
---|
| 545 | |
---|
| 546 | L = lines[1].strip().split() |
---|
| 547 | assert L[0].strip().lower() == 'zone' |
---|
| 548 | assert L[1].strip().lower() == '56' |
---|
| 549 | |
---|
| 550 | L = lines[2].strip().split() |
---|
| 551 | assert L[0].strip().lower() == 'datum' |
---|
| 552 | assert L[1].strip().lower() == 'wgs84' |
---|
| 553 | |
---|
| 554 | L = lines[3].strip().split() |
---|
| 555 | assert L[0].strip().lower() == 'zunits' |
---|
| 556 | assert L[1].strip().lower() == 'no' |
---|
| 557 | |
---|
| 558 | L = lines[4].strip().split() |
---|
| 559 | assert L[0].strip().lower() == 'units' |
---|
| 560 | assert L[1].strip().lower() == 'meters' |
---|
| 561 | |
---|
| 562 | L = lines[5].strip().split() |
---|
| 563 | assert L[0].strip().lower() == 'spheroid' |
---|
| 564 | assert L[1].strip().lower() == 'wgs84' |
---|
| 565 | |
---|
| 566 | L = lines[6].strip().split() |
---|
| 567 | assert L[0].strip().lower() == 'xshift' |
---|
| 568 | assert L[1].strip().lower() == '500000' |
---|
| 569 | |
---|
| 570 | L = lines[7].strip().split() |
---|
| 571 | assert L[0].strip().lower() == 'yshift' |
---|
| 572 | assert L[1].strip().lower() == '10000000' |
---|
| 573 | |
---|
| 574 | L = lines[8].strip().split() |
---|
| 575 | assert L[0].strip().lower() == 'parameters' |
---|
| 576 | |
---|
| 577 | |
---|
| 578 | #Check asc file |
---|
| 579 | ascid = open(ascfile) |
---|
| 580 | lines = ascid.readlines() |
---|
| 581 | ascid.close() |
---|
| 582 | |
---|
| 583 | |
---|
| 584 | |
---|
| 585 | L = lines[0].strip().split() |
---|
| 586 | assert L[0].strip().lower() == 'ncols' |
---|
| 587 | assert L[1].strip().lower() == '2001' |
---|
| 588 | |
---|
| 589 | L = lines[1].strip().split() |
---|
| 590 | assert L[0].strip().lower() == 'nrows' |
---|
| 591 | assert L[1].strip().lower() == '2' |
---|
| 592 | |
---|
| 593 | L = lines[2].strip().split() |
---|
| 594 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 595 | assert num.allclose(float(L[1].strip().lower()), 308500) |
---|
| 596 | |
---|
| 597 | L = lines[3].strip().split() |
---|
| 598 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 599 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
---|
| 600 | |
---|
| 601 | L = lines[4].strip().split() |
---|
| 602 | assert L[0].strip().lower() == 'cellsize' |
---|
| 603 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
---|
| 604 | |
---|
| 605 | L = lines[5].strip().split() |
---|
| 606 | assert L[0].strip() == 'NODATA_value' |
---|
| 607 | assert L[1].strip().lower() == '-9999' |
---|
| 608 | |
---|
| 609 | #Check grid values (FIXME: Use same strategy for other sww2dem tests) |
---|
| 610 | for i, line in enumerate(lines[6:]): |
---|
| 611 | for j, value in enumerate( line.split() ): |
---|
| 612 | assert num.allclose(float(value), 0.0, |
---|
| 613 | atol=1.0e-12, rtol=1.0e-12) |
---|
| 614 | |
---|
| 615 | # Note: Equality can be obtained in this case, |
---|
| 616 | # but it is better to use allclose. |
---|
| 617 | #assert float(value) == -(10-i+j)*cellsize |
---|
| 618 | |
---|
| 619 | |
---|
| 620 | fid.close() |
---|
| 621 | |
---|
| 622 | |
---|
| 623 | #Cleanup |
---|
| 624 | os.remove(prjfile) |
---|
| 625 | os.remove(ascfile) |
---|
| 626 | os.remove(swwfile) |
---|
| 627 | |
---|
| 628 | |
---|
| 629 | |
---|
| 630 | |
---|
| 631 | def test_sww2dem_boundingbox(self): |
---|
| 632 | """Test that sww information can be converted correctly to asc/prj |
---|
| 633 | format readable by e.g. ArcView. |
---|
| 634 | This will test that mesh can be restricted by bounding box |
---|
| 635 | |
---|
| 636 | Original extent is 100m x 100m: |
---|
| 637 | |
---|
| 638 | Eastings: 308500 - 308600 |
---|
| 639 | Northings: 6189000 - 6189100 |
---|
| 640 | |
---|
| 641 | Bounding box changes this to the 50m x 50m square defined by |
---|
| 642 | |
---|
| 643 | Eastings: 308530 - 308570 |
---|
| 644 | Northings: 6189050 - 6189100 |
---|
| 645 | |
---|
| 646 | The cropped values should be |
---|
| 647 | |
---|
| 648 | -130 -140 -150 -160 -170 |
---|
| 649 | -120 -130 -140 -150 -160 |
---|
| 650 | -110 -120 -130 -140 -150 |
---|
| 651 | -100 -110 -120 -130 -140 |
---|
| 652 | -90 -100 -110 -120 -130 |
---|
| 653 | -80 -90 -100 -110 -120 |
---|
| 654 | |
---|
| 655 | and the new lower reference point should be |
---|
| 656 | Eastings: 308530 |
---|
| 657 | Northings: 6189050 |
---|
| 658 | |
---|
| 659 | Original dataset is the same as in test_sww2dem_larger() |
---|
| 660 | |
---|
| 661 | """ |
---|
| 662 | |
---|
| 663 | import time, os |
---|
| 664 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 665 | |
---|
| 666 | #Setup |
---|
| 667 | |
---|
| 668 | from mesh_factory import rectangular |
---|
| 669 | |
---|
| 670 | #Create basic mesh (100m x 100m) |
---|
| 671 | points, vertices, boundary = rectangular(2, 2, 100, 100) |
---|
| 672 | |
---|
| 673 | #Create shallow water domain |
---|
| 674 | domain = Domain(points, vertices, boundary) |
---|
| 675 | domain.default_order = 2 |
---|
| 676 | |
---|
| 677 | domain.set_name('datatest') |
---|
| 678 | |
---|
| 679 | prjfile = domain.get_name() + '_elevation.prj' |
---|
| 680 | ascfile = domain.get_name() + '_elevation.asc' |
---|
| 681 | swwfile = domain.get_name() + '.sww' |
---|
| 682 | |
---|
| 683 | domain.set_datadir('.') |
---|
| 684 | domain.format = 'sww' |
---|
| 685 | domain.smooth = True |
---|
| 686 | domain.geo_reference = Geo_reference(56, 308500, 6189000) |
---|
| 687 | |
---|
| 688 | # |
---|
| 689 | domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 690 | domain.set_quantity('stage', 0) |
---|
| 691 | |
---|
| 692 | B = Transmissive_boundary(domain) |
---|
| 693 | domain.set_boundary( {'left': B, 'right': B, 'top': B, 'bottom': B}) |
---|
| 694 | |
---|
| 695 | |
---|
| 696 | # |
---|
| 697 | sww = SWW_file(domain) |
---|
| 698 | sww.store_connectivity() |
---|
| 699 | sww.store_timestep() |
---|
| 700 | |
---|
| 701 | #domain.tight_slope_limiters = 1 |
---|
| 702 | domain.evolve_to_end(finaltime = 0.01) |
---|
| 703 | sww.store_timestep() |
---|
| 704 | |
---|
| 705 | cellsize = 10 #10m grid |
---|
| 706 | |
---|
| 707 | |
---|
| 708 | #Check contents |
---|
| 709 | #Get NetCDF |
---|
| 710 | |
---|
| 711 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
---|
| 712 | |
---|
| 713 | # Get the variables |
---|
| 714 | x = fid.variables['x'][:] |
---|
| 715 | y = fid.variables['y'][:] |
---|
| 716 | z = fid.variables['elevation'][:] |
---|
| 717 | time = fid.variables['time'][:] |
---|
| 718 | stage = fid.variables['stage'][:] |
---|
| 719 | |
---|
| 720 | |
---|
| 721 | # Export to ascii/prj files |
---|
| 722 | sww2dem(domain.get_name(), |
---|
| 723 | quantity = 'elevation', |
---|
| 724 | cellsize = cellsize, |
---|
| 725 | number_of_decimal_places = 9, |
---|
| 726 | easting_min = 308530, |
---|
| 727 | easting_max = 308570, |
---|
| 728 | northing_min = 6189050, |
---|
| 729 | northing_max = 6189100, |
---|
| 730 | verbose = self.verbose, |
---|
| 731 | format = 'asc') |
---|
| 732 | |
---|
| 733 | fid.close() |
---|
| 734 | |
---|
| 735 | |
---|
| 736 | # Check prj (meta data) |
---|
| 737 | prjid = open(prjfile) |
---|
| 738 | lines = prjid.readlines() |
---|
| 739 | prjid.close() |
---|
| 740 | |
---|
| 741 | L = lines[0].strip().split() |
---|
| 742 | assert L[0].strip().lower() == 'projection' |
---|
| 743 | assert L[1].strip().lower() == 'utm' |
---|
| 744 | |
---|
| 745 | L = lines[1].strip().split() |
---|
| 746 | assert L[0].strip().lower() == 'zone' |
---|
| 747 | assert L[1].strip().lower() == '56' |
---|
| 748 | |
---|
| 749 | L = lines[2].strip().split() |
---|
| 750 | assert L[0].strip().lower() == 'datum' |
---|
| 751 | assert L[1].strip().lower() == 'wgs84' |
---|
| 752 | |
---|
| 753 | L = lines[3].strip().split() |
---|
| 754 | assert L[0].strip().lower() == 'zunits' |
---|
| 755 | assert L[1].strip().lower() == 'no' |
---|
| 756 | |
---|
| 757 | L = lines[4].strip().split() |
---|
| 758 | assert L[0].strip().lower() == 'units' |
---|
| 759 | assert L[1].strip().lower() == 'meters' |
---|
| 760 | |
---|
| 761 | L = lines[5].strip().split() |
---|
| 762 | assert L[0].strip().lower() == 'spheroid' |
---|
| 763 | assert L[1].strip().lower() == 'wgs84' |
---|
| 764 | |
---|
| 765 | L = lines[6].strip().split() |
---|
| 766 | assert L[0].strip().lower() == 'xshift' |
---|
| 767 | assert L[1].strip().lower() == '500000' |
---|
| 768 | |
---|
| 769 | L = lines[7].strip().split() |
---|
| 770 | assert L[0].strip().lower() == 'yshift' |
---|
| 771 | assert L[1].strip().lower() == '10000000' |
---|
| 772 | |
---|
| 773 | L = lines[8].strip().split() |
---|
| 774 | assert L[0].strip().lower() == 'parameters' |
---|
| 775 | |
---|
| 776 | |
---|
| 777 | #Check asc file |
---|
| 778 | ascid = open(ascfile) |
---|
| 779 | lines = ascid.readlines() |
---|
| 780 | ascid.close() |
---|
| 781 | |
---|
| 782 | L = lines[0].strip().split() |
---|
| 783 | assert L[0].strip().lower() == 'ncols' |
---|
| 784 | assert L[1].strip().lower() == '5' |
---|
| 785 | |
---|
| 786 | L = lines[1].strip().split() |
---|
| 787 | assert L[0].strip().lower() == 'nrows' |
---|
| 788 | assert L[1].strip().lower() == '6' |
---|
| 789 | |
---|
| 790 | L = lines[2].strip().split() |
---|
| 791 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 792 | assert num.allclose(float(L[1].strip().lower()), 308530) |
---|
| 793 | |
---|
| 794 | L = lines[3].strip().split() |
---|
| 795 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 796 | assert num.allclose(float(L[1].strip().lower()), 6189050) |
---|
| 797 | |
---|
| 798 | L = lines[4].strip().split() |
---|
| 799 | assert L[0].strip().lower() == 'cellsize' |
---|
| 800 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
---|
| 801 | |
---|
| 802 | L = lines[5].strip().split() |
---|
| 803 | assert L[0].strip() == 'NODATA_value' |
---|
| 804 | assert L[1].strip().lower() == '-9999' |
---|
| 805 | |
---|
| 806 | #Check grid values |
---|
| 807 | for i, line in enumerate(lines[6:]): |
---|
| 808 | for j, value in enumerate( line.split() ): |
---|
| 809 | #assert float(value) == -(10-i+j)*cellsize |
---|
| 810 | assert float(value) == -(10-i+j+3)*cellsize |
---|
| 811 | |
---|
| 812 | |
---|
| 813 | |
---|
| 814 | #Cleanup |
---|
| 815 | os.remove(prjfile) |
---|
| 816 | os.remove(ascfile) |
---|
| 817 | os.remove(swwfile) |
---|
| 818 | |
---|
| 819 | |
---|
| 820 | |
---|
| 821 | def test_sww2dem_asc_stage_reduction(self): |
---|
| 822 | """Test that sww information can be converted correctly to asc/prj |
---|
| 823 | format readable by e.g. ArcView |
---|
| 824 | |
---|
| 825 | This tests the reduction of quantity stage using min |
---|
| 826 | """ |
---|
| 827 | |
---|
| 828 | import time, os |
---|
| 829 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 830 | |
---|
| 831 | #Setup |
---|
| 832 | self.domain.set_name('datatest') |
---|
| 833 | |
---|
| 834 | prjfile = self.domain.get_name() + '_stage.prj' |
---|
| 835 | ascfile = self.domain.get_name() + '_stage.asc' |
---|
| 836 | swwfile = self.domain.get_name() + '.sww' |
---|
| 837 | |
---|
| 838 | self.domain.set_datadir('.') |
---|
| 839 | self.domain.format = 'sww' |
---|
| 840 | self.domain.smooth = True |
---|
| 841 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 842 | |
---|
| 843 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 844 | |
---|
| 845 | |
---|
| 846 | sww = SWW_file(self.domain) |
---|
| 847 | sww.store_connectivity() |
---|
| 848 | sww.store_timestep() |
---|
| 849 | |
---|
| 850 | #self.domain.tight_slope_limiters = 1 |
---|
| 851 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
| 852 | sww.store_timestep() |
---|
| 853 | |
---|
| 854 | cellsize = 0.25 |
---|
| 855 | #Check contents |
---|
| 856 | #Get NetCDF |
---|
| 857 | |
---|
| 858 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
---|
| 859 | |
---|
| 860 | # Get the variables |
---|
| 861 | x = fid.variables['x'][:] |
---|
| 862 | y = fid.variables['y'][:] |
---|
| 863 | z = fid.variables['elevation'][:] |
---|
| 864 | time = fid.variables['time'][:] |
---|
| 865 | stage = fid.variables['stage'][:] |
---|
| 866 | |
---|
| 867 | |
---|
| 868 | #Export to ascii/prj files |
---|
| 869 | sww2dem(self.domain.get_name(), |
---|
| 870 | quantity = 'stage', |
---|
| 871 | cellsize = cellsize, |
---|
| 872 | number_of_decimal_places = 9, |
---|
| 873 | reduction = min, |
---|
| 874 | format = 'asc', |
---|
| 875 | verbose=self.verbose) |
---|
| 876 | |
---|
| 877 | |
---|
| 878 | #Check asc file |
---|
| 879 | ascid = open(ascfile) |
---|
| 880 | lines = ascid.readlines() |
---|
| 881 | ascid.close() |
---|
| 882 | |
---|
| 883 | L = lines[0].strip().split() |
---|
| 884 | assert L[0].strip().lower() == 'ncols' |
---|
| 885 | assert L[1].strip().lower() == '5' |
---|
| 886 | |
---|
| 887 | L = lines[1].strip().split() |
---|
| 888 | assert L[0].strip().lower() == 'nrows' |
---|
| 889 | assert L[1].strip().lower() == '5' |
---|
| 890 | |
---|
| 891 | L = lines[2].strip().split() |
---|
| 892 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 893 | assert num.allclose(float(L[1].strip().lower()), 308500) |
---|
| 894 | |
---|
| 895 | L = lines[3].strip().split() |
---|
| 896 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 897 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
---|
| 898 | |
---|
| 899 | L = lines[4].strip().split() |
---|
| 900 | assert L[0].strip().lower() == 'cellsize' |
---|
| 901 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
---|
| 902 | |
---|
| 903 | L = lines[5].strip().split() |
---|
| 904 | assert L[0].strip() == 'NODATA_value' |
---|
| 905 | assert L[1].strip().lower() == '-9999' |
---|
| 906 | |
---|
| 907 | |
---|
| 908 | #Check grid values (where applicable) |
---|
| 909 | for j in range(5): |
---|
| 910 | if j%2 == 0: |
---|
| 911 | L = lines[6+j].strip().split() |
---|
| 912 | jj = 4-j |
---|
| 913 | for i in range(5): |
---|
| 914 | if i%2 == 0: |
---|
| 915 | index = jj/2 + i/2*3 |
---|
| 916 | val0 = stage[0,index] |
---|
| 917 | val1 = stage[1,index] |
---|
| 918 | |
---|
| 919 | #print i, j, index, ':', L[i], val0, val1 |
---|
| 920 | assert num.allclose(float(L[i]), min(val0, val1)) |
---|
| 921 | |
---|
| 922 | |
---|
| 923 | fid.close() |
---|
| 924 | |
---|
| 925 | #Cleanup |
---|
| 926 | os.remove(prjfile) |
---|
| 927 | os.remove(ascfile) |
---|
| 928 | os.remove(swwfile) |
---|
| 929 | |
---|
| 930 | def test_sww2dem_asc_stage_time(self): |
---|
| 931 | """Test that sww information can be converted correctly to asc/prj |
---|
| 932 | format readable by e.g. ArcView |
---|
| 933 | |
---|
| 934 | This tests the reduction of quantity stage using min |
---|
| 935 | """ |
---|
| 936 | |
---|
| 937 | import time, os |
---|
| 938 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 939 | |
---|
| 940 | #Setup |
---|
| 941 | self.domain.set_name('datatest') |
---|
| 942 | |
---|
| 943 | prjfile = self.domain.get_name() + '_stage.prj' |
---|
| 944 | ascfile = self.domain.get_name() + '_stage.asc' |
---|
| 945 | swwfile = self.domain.get_name() + '.sww' |
---|
| 946 | |
---|
| 947 | self.domain.set_datadir('.') |
---|
| 948 | self.domain.format = 'sww' |
---|
| 949 | self.domain.smooth = True |
---|
| 950 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 951 | |
---|
| 952 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 953 | |
---|
| 954 | sww = SWW_file(self.domain) |
---|
| 955 | sww.store_connectivity() |
---|
| 956 | sww.store_timestep() |
---|
| 957 | |
---|
| 958 | #self.domain.tight_slope_limiters = 1 |
---|
| 959 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
| 960 | sww.store_timestep() |
---|
| 961 | |
---|
| 962 | cellsize = 0.25 |
---|
| 963 | #Check contents |
---|
| 964 | #Get NetCDF |
---|
| 965 | |
---|
| 966 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
---|
| 967 | |
---|
| 968 | # Get the variables |
---|
| 969 | x = fid.variables['x'][:] |
---|
| 970 | y = fid.variables['y'][:] |
---|
| 971 | z = fid.variables['elevation'][:] |
---|
| 972 | time = fid.variables['time'][:] |
---|
| 973 | stage = fid.variables['stage'][:] |
---|
| 974 | |
---|
| 975 | #Export to ascii/prj files |
---|
| 976 | sww2dem(self.domain.get_name(), |
---|
| 977 | quantity = 'stage', |
---|
| 978 | cellsize = cellsize, |
---|
| 979 | number_of_decimal_places = 9, |
---|
| 980 | reduction = 1, |
---|
| 981 | format = 'asc', |
---|
| 982 | verbose=self.verbose) |
---|
| 983 | |
---|
| 984 | |
---|
| 985 | #Check asc file |
---|
| 986 | ascid = open(ascfile) |
---|
| 987 | lines = ascid.readlines() |
---|
| 988 | ascid.close() |
---|
| 989 | |
---|
| 990 | L = lines[0].strip().split() |
---|
| 991 | assert L[0].strip().lower() == 'ncols' |
---|
| 992 | assert L[1].strip().lower() == '5' |
---|
| 993 | |
---|
| 994 | L = lines[1].strip().split() |
---|
| 995 | assert L[0].strip().lower() == 'nrows' |
---|
| 996 | assert L[1].strip().lower() == '5' |
---|
| 997 | |
---|
| 998 | L = lines[2].strip().split() |
---|
| 999 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 1000 | assert num.allclose(float(L[1].strip().lower()), 308500) |
---|
| 1001 | |
---|
| 1002 | L = lines[3].strip().split() |
---|
| 1003 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 1004 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
---|
| 1005 | |
---|
| 1006 | L = lines[4].strip().split() |
---|
| 1007 | assert L[0].strip().lower() == 'cellsize' |
---|
| 1008 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
---|
| 1009 | |
---|
| 1010 | L = lines[5].strip().split() |
---|
| 1011 | assert L[0].strip() == 'NODATA_value' |
---|
| 1012 | assert L[1].strip().lower() == '-9999' |
---|
| 1013 | |
---|
| 1014 | #Check grid values (where applicable) |
---|
| 1015 | for j in range(5): |
---|
| 1016 | if j%2 == 0: |
---|
| 1017 | L = lines[6+j].strip().split() |
---|
| 1018 | jj = 4-j |
---|
| 1019 | for i in range(5): |
---|
| 1020 | if i%2 == 0: |
---|
| 1021 | index = jj/2 + i/2*3 |
---|
| 1022 | |
---|
| 1023 | val = stage[1,index] |
---|
| 1024 | |
---|
| 1025 | assert num.allclose(float(L[i]), val) |
---|
| 1026 | |
---|
| 1027 | fid.close() |
---|
| 1028 | |
---|
| 1029 | #Cleanup |
---|
| 1030 | os.remove(prjfile) |
---|
| 1031 | os.remove(ascfile) |
---|
| 1032 | os.remove(swwfile) |
---|
| 1033 | |
---|
| 1034 | |
---|
| 1035 | def test_sww2dem_asc_derived_quantity(self): |
---|
| 1036 | """Test that sww information can be converted correctly to asc/prj |
---|
| 1037 | format readable by e.g. ArcView |
---|
| 1038 | |
---|
| 1039 | This tests the use of derived quantities |
---|
| 1040 | """ |
---|
| 1041 | |
---|
| 1042 | import time, os |
---|
| 1043 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 1044 | |
---|
| 1045 | #Setup |
---|
| 1046 | self.domain.set_name('datatest') |
---|
| 1047 | |
---|
| 1048 | prjfile = self.domain.get_name() + '_depth.prj' |
---|
| 1049 | ascfile = self.domain.get_name() + '_depth.asc' |
---|
| 1050 | swwfile = self.domain.get_name() + '.sww' |
---|
| 1051 | |
---|
| 1052 | self.domain.set_datadir('.') |
---|
| 1053 | self.domain.format = 'sww' |
---|
| 1054 | self.domain.smooth = True |
---|
| 1055 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 1056 | self.domain.set_quantity('stage', 0.0) |
---|
| 1057 | |
---|
| 1058 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 1059 | |
---|
| 1060 | |
---|
| 1061 | sww = SWW_file(self.domain) |
---|
| 1062 | sww.store_connectivity() |
---|
| 1063 | sww.store_timestep() |
---|
| 1064 | |
---|
| 1065 | #self.domain.tight_slope_limiters = 1 |
---|
| 1066 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
| 1067 | sww.store_timestep() |
---|
| 1068 | |
---|
| 1069 | cellsize = 0.25 |
---|
| 1070 | #Check contents |
---|
| 1071 | #Get NetCDF |
---|
| 1072 | |
---|
| 1073 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
---|
| 1074 | |
---|
| 1075 | # Get the variables |
---|
| 1076 | x = fid.variables['x'][:] |
---|
| 1077 | y = fid.variables['y'][:] |
---|
| 1078 | z = fid.variables['elevation'][:] |
---|
| 1079 | time = fid.variables['time'][:] |
---|
| 1080 | stage = fid.variables['stage'][:] |
---|
| 1081 | |
---|
| 1082 | |
---|
| 1083 | #Export to ascii/prj files |
---|
| 1084 | sww2dem(self.domain.get_name(), |
---|
| 1085 | basename_out = 'datatest_depth', |
---|
| 1086 | quantity = 'stage - elevation', |
---|
| 1087 | cellsize = cellsize, |
---|
| 1088 | number_of_decimal_places = 9, |
---|
| 1089 | reduction = min, |
---|
| 1090 | format = 'asc', |
---|
| 1091 | verbose = self.verbose) |
---|
| 1092 | |
---|
| 1093 | |
---|
| 1094 | #Check asc file |
---|
| 1095 | ascid = open(ascfile) |
---|
| 1096 | lines = ascid.readlines() |
---|
| 1097 | ascid.close() |
---|
| 1098 | |
---|
| 1099 | L = lines[0].strip().split() |
---|
| 1100 | assert L[0].strip().lower() == 'ncols' |
---|
| 1101 | assert L[1].strip().lower() == '5' |
---|
| 1102 | |
---|
| 1103 | L = lines[1].strip().split() |
---|
| 1104 | assert L[0].strip().lower() == 'nrows' |
---|
| 1105 | assert L[1].strip().lower() == '5' |
---|
| 1106 | |
---|
| 1107 | L = lines[2].strip().split() |
---|
| 1108 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 1109 | assert num.allclose(float(L[1].strip().lower()), 308500) |
---|
| 1110 | |
---|
| 1111 | L = lines[3].strip().split() |
---|
| 1112 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 1113 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
---|
| 1114 | |
---|
| 1115 | L = lines[4].strip().split() |
---|
| 1116 | assert L[0].strip().lower() == 'cellsize' |
---|
| 1117 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
---|
| 1118 | |
---|
| 1119 | L = lines[5].strip().split() |
---|
| 1120 | assert L[0].strip() == 'NODATA_value' |
---|
| 1121 | assert L[1].strip().lower() == '-9999' |
---|
| 1122 | |
---|
| 1123 | |
---|
| 1124 | #Check grid values (where applicable) |
---|
| 1125 | for j in range(5): |
---|
| 1126 | if j%2 == 0: |
---|
| 1127 | L = lines[6+j].strip().split() |
---|
| 1128 | jj = 4-j |
---|
| 1129 | for i in range(5): |
---|
| 1130 | if i%2 == 0: |
---|
| 1131 | index = jj/2 + i/2*3 |
---|
| 1132 | val0 = stage[0,index] - z[index] |
---|
| 1133 | val1 = stage[1,index] - z[index] |
---|
| 1134 | |
---|
| 1135 | #print i, j, index, ':', L[i], val0, val1 |
---|
| 1136 | assert num.allclose(float(L[i]), min(val0, val1)) |
---|
| 1137 | |
---|
| 1138 | |
---|
| 1139 | fid.close() |
---|
| 1140 | |
---|
| 1141 | #Cleanup |
---|
| 1142 | os.remove(prjfile) |
---|
| 1143 | os.remove(ascfile) |
---|
| 1144 | os.remove(swwfile) |
---|
| 1145 | |
---|
| 1146 | |
---|
| 1147 | |
---|
| 1148 | |
---|
| 1149 | |
---|
| 1150 | def test_sww2dem_asc_missing_points(self): |
---|
| 1151 | """Test that sww information can be converted correctly to asc/prj |
---|
| 1152 | format readable by e.g. ArcView |
---|
| 1153 | |
---|
| 1154 | This test includes the writing of missing values |
---|
| 1155 | """ |
---|
| 1156 | |
---|
| 1157 | import time, os |
---|
| 1158 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 1159 | |
---|
| 1160 | #Setup mesh not coinciding with rectangle. |
---|
| 1161 | #This will cause missing values to occur in gridded data |
---|
| 1162 | |
---|
| 1163 | |
---|
| 1164 | points = [ [1.0, 1.0], |
---|
| 1165 | [0.5, 0.5], [1.0, 0.5], |
---|
| 1166 | [0.0, 0.0], [0.5, 0.0], [1.0, 0.0]] |
---|
| 1167 | |
---|
| 1168 | vertices = [ [4,1,3], [5,2,4], [1,4,2], [2,0,1]] |
---|
| 1169 | |
---|
| 1170 | #Create shallow water domain |
---|
| 1171 | domain = Domain(points, vertices) |
---|
| 1172 | domain.default_order=2 |
---|
| 1173 | |
---|
| 1174 | |
---|
| 1175 | #Set some field values |
---|
| 1176 | domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 1177 | domain.set_quantity('friction', 0.03) |
---|
| 1178 | |
---|
| 1179 | |
---|
| 1180 | ###################### |
---|
| 1181 | # Boundary conditions |
---|
| 1182 | B = Transmissive_boundary(domain) |
---|
| 1183 | domain.set_boundary( {'exterior': B} ) |
---|
| 1184 | |
---|
| 1185 | |
---|
| 1186 | ###################### |
---|
| 1187 | #Initial condition - with jumps |
---|
| 1188 | |
---|
| 1189 | bed = domain.quantities['elevation'].vertex_values |
---|
| 1190 | stage = num.zeros(bed.shape, num.float) |
---|
| 1191 | |
---|
| 1192 | h = 0.3 |
---|
| 1193 | for i in range(stage.shape[0]): |
---|
| 1194 | if i % 2 == 0: |
---|
| 1195 | stage[i,:] = bed[i,:] + h |
---|
| 1196 | else: |
---|
| 1197 | stage[i,:] = bed[i,:] |
---|
| 1198 | |
---|
| 1199 | domain.set_quantity('stage', stage) |
---|
| 1200 | domain.distribute_to_vertices_and_edges() |
---|
| 1201 | |
---|
| 1202 | domain.set_name('datatest') |
---|
| 1203 | |
---|
| 1204 | prjfile = domain.get_name() + '_elevation.prj' |
---|
| 1205 | ascfile = domain.get_name() + '_elevation.asc' |
---|
| 1206 | swwfile = domain.get_name() + '.sww' |
---|
| 1207 | |
---|
| 1208 | domain.set_datadir('.') |
---|
| 1209 | domain.format = 'sww' |
---|
| 1210 | domain.smooth = True |
---|
| 1211 | |
---|
| 1212 | domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 1213 | |
---|
| 1214 | sww = SWW_file(domain) |
---|
| 1215 | sww.store_connectivity() |
---|
| 1216 | sww.store_timestep() |
---|
| 1217 | |
---|
| 1218 | cellsize = 0.25 |
---|
| 1219 | #Check contents |
---|
| 1220 | #Get NetCDF |
---|
| 1221 | |
---|
| 1222 | fid = NetCDFFile(swwfile, netcdf_mode_r) |
---|
| 1223 | |
---|
| 1224 | # Get the variables |
---|
| 1225 | x = fid.variables['x'][:] |
---|
| 1226 | y = fid.variables['y'][:] |
---|
| 1227 | z = fid.variables['elevation'][:] |
---|
| 1228 | time = fid.variables['time'][:] |
---|
| 1229 | |
---|
| 1230 | try: |
---|
| 1231 | geo_reference = Geo_reference(NetCDFObject=fid) |
---|
| 1232 | except AttributeError, e: |
---|
| 1233 | geo_reference = Geo_reference(DEFAULT_ZONE,0,0) |
---|
| 1234 | |
---|
| 1235 | #Export to ascii/prj files |
---|
| 1236 | sww2dem(domain.get_name(), |
---|
| 1237 | quantity = 'elevation', |
---|
| 1238 | cellsize = cellsize, |
---|
| 1239 | number_of_decimal_places = 9, |
---|
| 1240 | verbose = self.verbose, |
---|
| 1241 | format = 'asc') |
---|
| 1242 | |
---|
| 1243 | |
---|
| 1244 | #Check asc file |
---|
| 1245 | ascid = open(ascfile) |
---|
| 1246 | lines = ascid.readlines() |
---|
| 1247 | ascid.close() |
---|
| 1248 | |
---|
| 1249 | L = lines[0].strip().split() |
---|
| 1250 | assert L[0].strip().lower() == 'ncols' |
---|
| 1251 | assert L[1].strip().lower() == '5' |
---|
| 1252 | |
---|
| 1253 | L = lines[1].strip().split() |
---|
| 1254 | assert L[0].strip().lower() == 'nrows' |
---|
| 1255 | assert L[1].strip().lower() == '5' |
---|
| 1256 | |
---|
| 1257 | L = lines[2].strip().split() |
---|
| 1258 | assert L[0].strip().lower() == 'xllcorner' |
---|
| 1259 | assert num.allclose(float(L[1].strip().lower()), 308500) |
---|
| 1260 | |
---|
| 1261 | L = lines[3].strip().split() |
---|
| 1262 | assert L[0].strip().lower() == 'yllcorner' |
---|
| 1263 | assert num.allclose(float(L[1].strip().lower()), 6189000) |
---|
| 1264 | |
---|
| 1265 | L = lines[4].strip().split() |
---|
| 1266 | assert L[0].strip().lower() == 'cellsize' |
---|
| 1267 | assert num.allclose(float(L[1].strip().lower()), cellsize) |
---|
| 1268 | |
---|
| 1269 | L = lines[5].strip().split() |
---|
| 1270 | assert L[0].strip() == 'NODATA_value' |
---|
| 1271 | assert L[1].strip().lower() == '-9999' |
---|
| 1272 | |
---|
| 1273 | #Check grid values |
---|
| 1274 | for j in range(5): |
---|
| 1275 | L = lines[6+j].strip().split() |
---|
| 1276 | assert len(L) == 5 |
---|
| 1277 | y = (4-j) * cellsize |
---|
| 1278 | |
---|
| 1279 | for i in range(5): |
---|
| 1280 | #print i |
---|
| 1281 | if i+j >= 4: |
---|
| 1282 | assert num.allclose(float(L[i]), -i*cellsize - y) |
---|
| 1283 | else: |
---|
| 1284 | #Missing values |
---|
| 1285 | assert num.allclose(float(L[i]), -9999) |
---|
| 1286 | |
---|
| 1287 | |
---|
| 1288 | |
---|
| 1289 | fid.close() |
---|
| 1290 | |
---|
| 1291 | #Cleanup |
---|
| 1292 | os.remove(prjfile) |
---|
| 1293 | os.remove(ascfile) |
---|
| 1294 | os.remove(swwfile) |
---|
| 1295 | |
---|
| 1296 | |
---|
| 1297 | |
---|
| 1298 | def test_sww2ers_simple(self): |
---|
| 1299 | """Test that sww information can be converted correctly to asc/prj |
---|
| 1300 | format readable by e.g. ArcView |
---|
| 1301 | """ |
---|
| 1302 | |
---|
| 1303 | import time, os |
---|
| 1304 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 1305 | |
---|
| 1306 | |
---|
| 1307 | NODATA_value = 1758323 |
---|
| 1308 | |
---|
| 1309 | #Setup |
---|
| 1310 | self.domain.set_name('datatest') |
---|
| 1311 | |
---|
| 1312 | headerfile = self.domain.get_name() + '.ers' |
---|
| 1313 | swwfile = self.domain.get_name() + '.sww' |
---|
| 1314 | |
---|
| 1315 | self.domain.set_datadir('.') |
---|
| 1316 | self.domain.format = 'sww' |
---|
| 1317 | self.domain.smooth = True |
---|
| 1318 | self.domain.set_quantity('elevation', lambda x,y: -x-y) |
---|
| 1319 | |
---|
| 1320 | self.domain.geo_reference = Geo_reference(56,308500,6189000) |
---|
| 1321 | |
---|
| 1322 | sww = SWW_file(self.domain) |
---|
| 1323 | sww.store_connectivity() |
---|
| 1324 | sww.store_timestep() |
---|
| 1325 | |
---|
| 1326 | #self.domain.tight_slope_limiters = 1 |
---|
| 1327 | self.domain.evolve_to_end(finaltime = 0.01) |
---|
| 1328 | sww.store_timestep() |
---|
| 1329 | |
---|
| 1330 | cellsize = 0.25 |
---|
| 1331 | #Check contents |
---|
| 1332 | #Get NetCDF |
---|
| 1333 | |
---|
| 1334 | fid = NetCDFFile(sww.filename, netcdf_mode_r) |
---|
| 1335 | |
---|
| 1336 | # Get the variables |
---|
| 1337 | x = fid.variables['x'][:] |
---|
| 1338 | y = fid.variables['y'][:] |
---|
| 1339 | z = fid.variables['elevation'][:] |
---|
| 1340 | time = fid.variables['time'][:] |
---|
| 1341 | stage = fid.variables['stage'][:] |
---|
| 1342 | |
---|
| 1343 | |
---|
| 1344 | #Export to ers files |
---|
| 1345 | sww2dem(self.domain.get_name(), |
---|
| 1346 | quantity = 'elevation', |
---|
| 1347 | cellsize = cellsize, |
---|
| 1348 | number_of_decimal_places = 9, |
---|
| 1349 | NODATA_value = NODATA_value, |
---|
| 1350 | verbose = self.verbose, |
---|
| 1351 | format = 'ers') |
---|
| 1352 | |
---|
| 1353 | #Check header data |
---|
| 1354 | from ermapper_grids import read_ermapper_header, read_ermapper_data |
---|
| 1355 | |
---|
| 1356 | header = read_ermapper_header(self.domain.get_name() + '_elevation.ers') |
---|
| 1357 | #print header |
---|
| 1358 | assert header['projection'].lower() == '"utm-56"' |
---|
| 1359 | assert header['datum'].lower() == '"wgs84"' |
---|
| 1360 | assert header['units'].lower() == '"meters"' |
---|
| 1361 | assert header['value'].lower() == '"elevation"' |
---|
| 1362 | assert header['xdimension'] == '0.25' |
---|
| 1363 | assert header['ydimension'] == '0.25' |
---|
| 1364 | assert float(header['eastings']) == 308500.0 #xllcorner |
---|
| 1365 | assert float(header['northings']) == 6189000.0 #yllcorner |
---|
| 1366 | assert int(header['nroflines']) == 5 |
---|
| 1367 | assert int(header['nrofcellsperline']) == 5 |
---|
| 1368 | assert int(header['nullcellvalue']) == NODATA_value |
---|
| 1369 | #FIXME - there is more in the header |
---|
| 1370 | |
---|
| 1371 | |
---|
| 1372 | #Check grid data |
---|
| 1373 | grid = read_ermapper_data(self.domain.get_name() + '_elevation') |
---|
| 1374 | |
---|
| 1375 | #FIXME (Ole): Why is this the desired reference grid for -x-y? |
---|
| 1376 | ref_grid = [NODATA_value, NODATA_value, NODATA_value, NODATA_value, NODATA_value, |
---|
| 1377 | -1, -1.25, -1.5, -1.75, -2.0, |
---|
| 1378 | -0.75, -1.0, -1.25, -1.5, -1.75, |
---|
| 1379 | -0.5, -0.75, -1.0, -1.25, -1.5, |
---|
| 1380 | -0.25, -0.5, -0.75, -1.0, -1.25] |
---|
| 1381 | |
---|
| 1382 | |
---|
| 1383 | #print grid |
---|
| 1384 | assert num.allclose(grid, ref_grid) |
---|
| 1385 | |
---|
| 1386 | fid.close() |
---|
| 1387 | |
---|
| 1388 | #Cleanup |
---|
| 1389 | #FIXME the file clean-up doesn't work (eg Permission Denied Error) |
---|
| 1390 | #Done (Ole) - it was because sww2ers didn't close it's sww file |
---|
| 1391 | os.remove(sww.filename) |
---|
| 1392 | os.remove(self.domain.get_name() + '_elevation') |
---|
| 1393 | os.remove(self.domain.get_name() + '_elevation.ers') |
---|
| 1394 | |
---|
| 1395 | ################################################################################# |
---|
| 1396 | |
---|
| 1397 | if __name__ == "__main__": |
---|
| 1398 | #suite = unittest.makeSuite(Test_Shallow_Water, 'test_rainfall_forcing_with_evolve') |
---|
| 1399 | suite = unittest.makeSuite(Test_Sww2Dem, 'test') |
---|
| 1400 | runner = unittest.TextTestRunner(verbosity=1) |
---|
| 1401 | runner.run(suite) |
---|