def make_model(images_dir=os.path.join(base_dir, 'images')):
print 'initializing the model'
start_time = datetime(2006, 3, 31, 20, 0)
model = Model(start_time=start_time,
duration=timedelta(days=3), time_step=30 * 60,
uncertain=True)
print 'adding the map'
mapfile = get_datafile(os.path.join(base_dir, './coastSF.bna'))
model.map = MapFromBNA(mapfile, refloat_halflife=1) # seconds
renderer = Renderer(mapfile, images_dir, size=(800, 600),
draw_ontop='forecast')
renderer.viewport = ((-124.5, 37.), (-120.5, 39))
print 'adding outputters'
model.outputters += renderer
netcdf_file = os.path.join(base_dir, 'script_sf_bay.nc')
scripting.remove_netcdf(netcdf_file)
model.outputters += NetCDFOutput(netcdf_file, which_data='all')
print 'adding a spill'
spill = point_line_release_spill(num_elements=1000,
start_position=(-123.57152, 37.369436,
0.0),
release_time=start_time,
element_type=floating(windage_range=(0.01,
0.04)
)
)
model.spills += spill
# print 'adding a RandomMover:'
# r_mover = gnome.movers.RandomMover(diffusion_coef=50000)
# model.movers += r_mover
print 'adding a grid wind mover:'
wind_file = get_datafile(os.path.join(base_dir, r"./WindSpeedDirSubset.nc")
)
topology_file = get_datafile(os.path.join(base_dir,
r"./WindSpeedDirSubsetTop.dat"))
w_mover = GridWindMover(wind_file, topology_file)
#w_mover.uncertain_time_delay = 6
#w_mover.uncertain_duration = 6
w_mover.uncertain_speed_scale = 1
w_mover.set_uncertain_angle(.2, 'rad') # default is .4
w_mover.wind_scale = 2
model.movers += w_mover
return model
def test_exceptions():
"""
Test correct exceptions are raised
"""
with pytest.raises(TypeError):
GridWindMover()
bad_file = os.path.join(wind_dir, 'WindSpeedDirSubset.CUR')
with pytest.raises(ValueError):
GridWindMover(bad_file)
with pytest.raises(TypeError):
GridWindMover(wind_file, topology_file=10)
with pytest.raises(ValueError):
# todo: Following fails - cannot raise exception during initialize
# Need to look into this issue
#gw = GridWindMover(grid_file, uncertain_angle_units='xyz')
gw = GridWindMover(wind_file,topology_file) # todo: why does this fail
gw.set_uncertain_angle(.4, 'xyz')
