'south': [0],
'east': [1],
'north': [2],
'west': [3]
},
maximum_triangle_area=1.0,
filename=meshname,
use_cache=False,
verbose=True)
#------------------------------------------------------------------------------
# SETUP COMPUTATIONAL DOMAIN
#------------------------------------------------------------------------------
domain = Domain(meshname, use_cache=False, verbose=True)
domain.set_minimum_storable_height(0.0001)
domain.set_name(outname)
print(domain.statistics())
#------------------------------------------------------------------------------
# APPLY MANNING'S ROUGHNESSES
#------------------------------------------------------------------------------
domain.set_quantity('friction', 0.035)
domain.set_quantity('elevation',
filename=basename + '.csv',
use_cache=False,
verbose=True,
alpha=0.1)
def start_sim(run_id, Runs, scenario_name, Scenario, session, **kwargs):
yieldstep = kwargs['yieldstep']
finaltime = kwargs['finaltime']
logger = logging.getLogger(run_id)
max_triangle_area = kwargs['max_triangle_area']
logger.info('Starting hydrata_project')
if run_id == 'local_run':
base_dir = os.getcwd()
else:
base_dir = os.getcwd() + '/base_dir/%s/' % run_id
outname = run_id
meshname = base_dir + 'outputs/' + run_id + '.msh'
def get_filename(data_type, file_type):
files = os.listdir('%sinputs/%s' % (base_dir, data_type))
filename = '%sinputs/%s/%s' % (
base_dir, data_type, [f for f in files if f[-4:] == file_type][0])
return filename
boundary_data_filename = get_filename('boundary_data', '.shp')
elevation_data_filename = get_filename('elevation_data', '.tif')
try:
structures_filename = get_filename('structures', '.shp')
except OSError as e:
structures_filename = None
try:
rain_data_filename = get_filename('rain_data', '.shp')
except OSError as e:
rain_data_filename = None
try:
inflow_data_filename = get_filename('inflow_data', '.shp')
except OSError as e:
inflow_data_filename = None
try:
friction_data_filename = get_filename('friction_data', '.shp')
except OSError as e:
friction_data_filename = None
logger.info('boundary_data_filename: %s' % boundary_data_filename)
logger.info('structures_filename: %s' % structures_filename)
logger.info('rain_data_filename: %s' % rain_data_filename)
logger.info('inflow_data_filename: %s' % inflow_data_filename)
logger.info('friction_data_filename: %s' % friction_data_filename)
logger.info('elevation_data_filename: %s' % elevation_data_filename)
# create a list of project files
vector_filenames = [
boundary_data_filename, structures_filename, rain_data_filename,
inflow_data_filename, friction_data_filename
]
# set the projection system for ANUGA calculations from the geotiff elevation data
elevation_data_gdal = gdal.Open(elevation_data_filename)
project_spatial_ref = osr.SpatialReference()
project_spatial_ref.ImportFromWkt(elevation_data_gdal.GetProjectionRef())
project_spatial_ref_epsg_code = int(
project_spatial_ref.GetAttrValue("AUTHORITY", 1))
# check the spatial reference system of the project files matches that of the calculation
for filename in vector_filenames:
if filename:
prj_text = open(filename[:-4] + '.prj').read()
srs = osr.SpatialReference()
srs.ImportFromESRI([prj_text])
srs.AutoIdentifyEPSG()
logger.info('filename is: %s' % filename)
logger.info('EPSG is: %s' % srs.GetAuthorityCode(None))
if str(srs.GetAuthorityCode(None)) != str(
project_spatial_ref_epsg_code):
logger.warning('warning spatial refs are not maching: %s, %s' %
(srs.GetAuthorityCode(None),
project_spatial_ref_epsg_code))
logger.info('Setting up structures...')
if structures_filename:
structures = []
logger.info('processing structures from :%s' % structures_filename)
ogr_shapefile = ogr.Open(structures_filename)
ogr_layer = ogr_shapefile.GetLayer(0)
ogr_layer_feature = ogr_layer.GetNextFeature()
while ogr_layer_feature:
structure = json.loads(ogr_layer_feature.GetGeometryRef().
ExportToJson())['coordinates'][0]
structures.append(structure)
ogr_layer_feature = None
ogr_layer_feature = ogr_layer.GetNextFeature()
logger.info('structures: %s' % structures)
else:
logger.warning('warning: no structures found.')
structures = None
logger.info('Setting up friction...')
frictions = []
if friction_data_filename:
logger.info('processing frictions from :%s' % friction_data_filename)
ogr_shapefile = ogr.Open(friction_data_filename)
ogr_layer = ogr_shapefile.GetLayer(0)
ogr_layer_feature = ogr_layer.GetNextFeature()
while ogr_layer_feature:
friction_poly = json.loads(ogr_layer_feature.GetGeometryRef().
ExportToJson())['coordinates'][0]
friction_value = float(ogr_layer_feature.GetField('mannings'))
friction_couple = [friction_poly, friction_value]
frictions.append(friction_couple)
ogr_layer_feature = None
ogr_layer_feature = ogr_layer.GetNextFeature()
frictions.append(['All', 0.04])
logger.info('frictions: %s' % frictions)
else:
frictions.append(['All', 0.04])
logger.info('warning: no frictions found.')
logger.info('Setting up boundary conditions...')
ogr_shapefile = ogr.Open(boundary_data_filename)
ogr_layer = ogr_shapefile.GetLayer(0)
ogr_layer_definition = ogr_layer.GetLayerDefn()
logger.info('ogr_layer_definition.GetGeomType: %s' %
ogr_layer_definition.GetGeomType())
boundary_tag_index = 0
bdy_tags = {}
bdy = {}
ogr_layer_feature = ogr_layer.GetNextFeature()
while ogr_layer_feature:
boundary_tag_key = ogr_layer_feature.GetField('bdy_tag_k')
boundary_tag_value = ogr_layer_feature.GetField('bdy_tag_v')
bdy_tags[boundary_tag_key] = [
boundary_tag_index * 2, boundary_tag_index * 2 + 1
]
bdy[boundary_tag_key] = boundary_tag_value
geom = ogr_layer_feature.GetGeometryRef().GetPoints()
ogr_layer_feature = None
ogr_layer_feature = ogr_layer.GetNextFeature()
boundary_tag_index = boundary_tag_index + 1
logger.info('bdy_tags: %s' % bdy_tags)
logger.info('bdy: %s' % bdy)
boundary_data = su.read_polygon(boundary_data_filename)
create_mesh_from_regions(boundary_data,
boundary_tags=bdy_tags,
maximum_triangle_area=max_triangle_area,
interior_regions=None,
interior_holes=structures,
filename=meshname,
use_cache=False,
verbose=True)
domain = Domain(meshname, use_cache=False, verbose=True)
domain.set_name(outname)
domain.set_datadir(base_dir + '/outputs')
logger.info(domain.statistics())
poly_fun_pairs = [['Extent', elevation_data_filename.encode("utf-8")]]
topography_function = qs.composite_quantity_setting_function(
poly_fun_pairs,
domain,
nan_treatment='exception',
)
friction_function = qs.composite_quantity_setting_function(
frictions, domain)
domain.set_quantity('friction', friction_function, verbose=True)
domain.set_quantity('stage', 0.0)
domain.set_quantity('elevation',
topography_function,
verbose=True,
alpha=0.99)
domain.set_minimum_storable_height(0.005)
logger.info('Applying rainfall...')
if rain_data_filename:
ogr_shapefile = ogr.Open(rain_data_filename)
ogr_layer = ogr_shapefile.GetLayer(0)
rainfall = 0
ogr_layer_feature = ogr_layer.GetNextFeature()
while ogr_layer_feature:
rainfall = float(ogr_layer_feature.GetField('rate_mm_hr'))
polygon = su.read_polygon(rain_data_filename)
logger.info("applying Polygonal_rate_operator with rate, polygon:")
logger.info(rainfall)
logger.info(polygon)
Polygonal_rate_operator(domain,
rate=rainfall,
factor=1.0e-6,
polygon=polygon,
default_rate=0.0)
ogr_layer_feature = None
ogr_layer_feature = ogr_layer.GetNextFeature()
logger.info('Applying surface inflows...')
if inflow_data_filename:
ogr_shapefile = ogr.Open(inflow_data_filename)
ogr_layer = ogr_shapefile.GetLayer(0)
ogr_layer_definition = ogr_layer.GetLayerDefn()
ogr_layer_feature = ogr_layer.GetNextFeature()
while ogr_layer_feature:
in_fixed = float(ogr_layer_feature.GetField('in_fixed'))
line = ogr_layer_feature.GetGeometryRef().GetPoints()
logger.info("applying Inlet_operator with line, in_fixed:")
logger.info(line)
logger.info(in_fixed)
Inlet_operator(domain, line, in_fixed, verbose=False)
ogr_layer_feature = None
ogr_layer_feature = ogr_layer.GetNextFeature()
logger.info('Applying Boundary Conditions...')
logger.info('Available boundary tags: %s' % domain.get_boundary_tags())
Br = anuga.Reflective_boundary(domain)
Bd = anuga.Dirichlet_boundary([0.0, 0.0, 0.0])
Bt = anuga.Transmissive_boundary(domain)
for key, value in bdy.iteritems():
if value == 'Br':
bdy[key] = Br
elif value == 'Bd':
bdy[key] = Bd
elif value == 'Bt':
bdy[key] = Bt
else:
logger.info(
'No matching boundary condition exists - please check your shapefile attributes in: %s'
% boundary_data_filename)
# set a default value for exterior & interior boundary if it is not already set
try:
bdy['exterior']
except KeyError:
bdy['exterior'] = Br
try:
bdy['interior']
except KeyError:
bdy['interior'] = Br
logger.info('bdy: %s' % bdy)
domain.set_boundary(bdy)
domain = distribute(domain)
logger.info('Beginning evolve phase...')
for t in domain.evolve(yieldstep, finaltime):
domain.write_time()
print domain.timestepping_statistics()
logger.info(domain.timestepping_statistics(track_speeds=True))
percentage_complete = round(domain.time / domain.finaltime, 3) * 100
logger.info('%s percent complete' % percentage_complete)
if run_id != 'local_run':
write_percentage_complete(run_id, Runs, scenario_name, Scenario,
session, percentage_complete)
domain.sww_merge(delete_old=True)
barrier()
finalize()
sww_file = base_dir + '/outputs/' + run_id + '.sww'
sww_file = sww_file.encode(
'utf-8',
'ignore') # sometimes run_id gets turned to a unicode object by celery
util.Make_Geotif(swwFile=sww_file,
output_quantities=['depth', 'velocity'],
myTimeStep='max',
CellSize=max_triangle_area,
lower_left=None,
upper_right=None,
EPSG_CODE=project_spatial_ref_epsg_code,
proj4string=None,
velocity_extrapolation=True,
min_allowed_height=1.0e-05,
output_dir=(base_dir + '/outputs/'),
bounding_polygon=boundary_data,
internal_holes=structures,
verbose=False,
k_nearest_neighbours=3,
creation_options=[])
logger.info("Done. Nice work.")
