def test_get_maximum_inundation_from_sww(self): """test_get_maximum_inundation_from_sww(self) Test of get_maximum_inundation_elevation() and get_maximum_inundation_location(). This is based on test_get_maximum_inundation_3(self) but works with the stored results instead of with the internal data structure. This test uses the underlying get_maximum_inundation_data for tests """ verbose = False from anuga.config import minimum_storable_height initial_runup_height = -0.4 final_runup_height = -0.3 filename = 'runup_test_2' #-------------------------------------------------------------- # Setup computational domain #-------------------------------------------------------------- N = 10 points, vertices, boundary = rectangular_cross(N, N) domain = Domain(points, vertices, boundary) domain.set_name(filename) domain.set_maximum_allowed_speed(1.0) #domain.set_minimum_storable_height(1.0e-5) domain.set_store_vertices_uniquely() # FIXME: This works better with old limiters so far domain.tight_slope_limiters = 0 #-------------------------------------------------------------- # Setup initial conditions #-------------------------------------------------------------- def topography(x, y): return -x/2 # linear bed slope # Use function for elevation domain.set_quantity('elevation', topography) domain.set_quantity('friction', 0.) # Zero friction # Constant negative initial stage domain.set_quantity('stage', initial_runup_height) #-------------------------------------------------------------- # Setup boundary conditions #-------------------------------------------------------------- Br = Reflective_boundary(domain) # Reflective wall Bd = Dirichlet_boundary([final_runup_height, 0, 0]) # Constant inflow # All reflective to begin with (still water) domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) #-------------------------------------------------------------- # Test initial inundation height #-------------------------------------------------------------- indices = domain.get_wet_elements() z = domain.get_quantity('elevation').\ get_values(location='centroids', indices=indices) assert num.alltrue(z < initial_runup_height) q_ref = domain.get_maximum_inundation_elevation(minimum_height=minimum_storable_height) # First order accuracy assert num.allclose(q_ref, initial_runup_height, rtol=1.0/N) #-------------------------------------------------------------- # Let triangles adjust #-------------------------------------------------------------- q_max = None for t in domain.evolve(yieldstep = 0.1, finaltime = 1.0): q = domain.get_maximum_inundation_elevation(minimum_height=minimum_storable_height) if verbose: domain.write_time() print q if q > q_max: q_max = q #-------------------------------------------------------------- # Test inundation height again #-------------------------------------------------------------- #q_ref = domain.get_maximum_inundation_elevation() q = get_maximum_inundation_elevation(filename+'.sww') msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=2.0/N), msg msg = 'We got %f, should have been %f' % (q, initial_runup_height) assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg # Test error condition if time interval is out try: q = get_maximum_inundation_elevation(filename+'.sww', time_interval=[2.0, 3.0]) except ValueError: pass else: msg = 'should have caught wrong time interval' raise Exception, msg # Check correct time interval q, loc = get_maximum_inundation_data(filename+'.sww', time_interval=[0.0, 3.0]) msg = 'We got %f, should have been %f' % (q, initial_runup_height) assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg assert num.allclose(-loc[0]/2, q) # From topography formula #-------------------------------------------------------------- # Update boundary to allow inflow #-------------------------------------------------------------- domain.set_boundary({'right': Bd}) #-------------------------------------------------------------- # Evolve system through time #-------------------------------------------------------------- for t in domain.evolve(yieldstep = 0.1, finaltime = 3.0, skip_initial_step = True): q = domain.get_maximum_inundation_elevation(minimum_height=minimum_storable_height) if verbose: domain.write_time() print q if q > q_max: q_max = q #-------------------------------------------------------------- # Test inundation height again #-------------------------------------------------------------- indices = domain.get_wet_elements() z = domain.get_quantity('elevation').\ get_values(location='centroids', indices=indices) assert num.alltrue(z < final_runup_height+1.0/N) q = domain.get_maximum_inundation_elevation() # First order accuracy assert num.allclose(q, final_runup_height, rtol=1.0/N) q, loc = get_maximum_inundation_data(filename+'.sww', time_interval=[3.0, 3.0]) msg = 'We got %f, should have been %f' % (q, final_runup_height) assert num.allclose(q, final_runup_height, rtol=1.0/N), msg assert num.allclose(-loc[0]/2, q) # From topography formula q = get_maximum_inundation_elevation(filename+'.sww',verbose = verbose) loc = get_maximum_inundation_location(filename+'.sww') msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=1.0/N), msg assert num.allclose(-loc[0]/2, q) # From topography formula q = get_maximum_inundation_elevation(filename+'.sww', time_interval=[0, 3]) msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=1.0/N), msg # Check polygon mode # Runup region polygon = [[0.3, 0.0], [0.9, 0.0], [0.9, 1.0], [0.3, 1.0]] q = get_maximum_inundation_elevation(filename+'.sww', polygon = polygon, time_interval=[0, 3]) msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=1.0/N), msg # Offshore region polygon = [[0.9, 0.0], [1.0, 0.0], [1.0, 1.0], [0.9, 1.0]] q, loc = get_maximum_inundation_data(filename+'.sww', polygon = polygon, time_interval=[0, 3]) msg = 'We got %f, should have been %f' % (q, -0.475) assert num.allclose(q, -0.475, rtol=1.0/N), msg assert is_inside_polygon(loc, polygon) assert num.allclose(-loc[0]/2, q) # From topography formula # Dry region polygon = [[0.0, 0.0], [0.4, 0.0], [0.4, 1.0], [0.0, 1.0]] q, loc = get_maximum_inundation_data(filename+'.sww', polygon = polygon, time_interval=[0, 3]) msg = 'We got %s, should have been None' % (q) assert q is None, msg msg = 'We got %s, should have been None' % (loc) assert loc is None, msg # Check what happens if no time point is within interval try: q = get_maximum_inundation_elevation(filename+'.sww', time_interval=[2.75, 2.75]) except AssertionError: pass else: msg = 'Time interval should have raised an exception' raise Exception, msg # Cleanup try: pass #os.remove(domain.get_name() + '.sww') except: pass
def test_get_maximum_inundation_from_sww(self): """test_get_maximum_inundation_from_sww(self) Test of get_maximum_inundation_elevation() and get_maximum_inundation_location(). This is based on test_get_maximum_inundation_3(self) but works with the stored results instead of with the internal data structure. This test uses the underlying get_maximum_inundation_data for tests """ verbose = False from anuga.config import minimum_storable_height initial_runup_height = -0.4 final_runup_height = -0.3 filename = 'runup_test_2' #-------------------------------------------------------------- # Setup computational domain #-------------------------------------------------------------- N = 10 points, vertices, boundary = rectangular_cross(N, N) domain = Domain(points, vertices, boundary) domain.set_low_froude(0) domain.set_name(filename) domain.set_maximum_allowed_speed(1.0) #domain.set_minimum_storable_height(1.0e-5) domain.set_store_vertices_uniquely() # FIXME: This works better with old limiters so far domain.tight_slope_limiters = 0 #-------------------------------------------------------------- # Setup initial conditions #-------------------------------------------------------------- def topography(x, y): return old_div(-x, 2) # linear bed slope # Use function for elevation domain.set_quantity('elevation', topography) domain.set_quantity('friction', 0.) # Zero friction # Constant negative initial stage domain.set_quantity('stage', initial_runup_height) #-------------------------------------------------------------- # Setup boundary conditions #-------------------------------------------------------------- Br = Reflective_boundary(domain) # Reflective wall Bd = Dirichlet_boundary([final_runup_height, 0, 0]) # Constant inflow # All reflective to begin with (still water) domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) #-------------------------------------------------------------- # Test initial inundation height #-------------------------------------------------------------- indices = domain.get_wet_elements() z = domain.get_quantity('elevation').\ get_values(location='centroids', indices=indices) assert num.alltrue(z < initial_runup_height) q_ref = domain.get_maximum_inundation_elevation( minimum_height=minimum_storable_height) # First order accuracy assert num.allclose(q_ref, initial_runup_height, rtol=1.0 / N) #-------------------------------------------------------------- # Let triangles adjust #-------------------------------------------------------------- q_max = None for t in domain.evolve(yieldstep=0.1, finaltime=1.0): q = domain.get_maximum_inundation_elevation( minimum_height=minimum_storable_height) if verbose: domain.write_time() print(q) if q is None and q_max is None: pass elif q_max is None or q > q_max: q_max = q else: pass #-------------------------------------------------------------- # Test inundation height again #-------------------------------------------------------------- #q_ref = domain.get_maximum_inundation_elevation() q = get_maximum_inundation_elevation(filename + '.sww') msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=2.0 / N), msg msg = 'We got %f, should have been %f' % (q, initial_runup_height) assert num.allclose(q, initial_runup_height, rtol=1.0 / N), msg # Test error condition if time interval is out try: q = get_maximum_inundation_elevation(filename + '.sww', time_interval=[2.0, 3.0]) except ValueError: pass else: msg = 'should have caught wrong time interval' raise_(Exception, msg) # Check correct time interval q, loc = get_maximum_inundation_data(filename + '.sww', time_interval=[0.0, 3.0]) msg = 'We got %f, should have been %f' % (q, initial_runup_height) assert num.allclose(q, initial_runup_height, rtol=1.0 / N), msg assert num.allclose(old_div(-loc[0], 2), q) # From topography formula #-------------------------------------------------------------- # Update boundary to allow inflow #-------------------------------------------------------------- domain.set_boundary({'right': Bd}) #-------------------------------------------------------------- # Evolve system through time #-------------------------------------------------------------- for t in domain.evolve(yieldstep=0.1, finaltime=3.0, skip_initial_step=True): q = domain.get_maximum_inundation_elevation( minimum_height=minimum_storable_height) if verbose: domain.write_time() print(q) if q > q_max: q_max = q #-------------------------------------------------------------- # Test inundation height again #-------------------------------------------------------------- indices = domain.get_wet_elements() z = domain.get_quantity('elevation').\ get_values(location='centroids', indices=indices) assert num.alltrue(z < final_runup_height + 1.0 / N) q = domain.get_maximum_inundation_elevation() # First order accuracy assert num.allclose(q, final_runup_height, rtol=1.0 / N) q, loc = get_maximum_inundation_data(filename + '.sww', time_interval=[3.0, 3.0]) msg = 'We got %f, should have been %f' % (q, final_runup_height) assert num.allclose(q, final_runup_height, rtol=1.0 / N), msg assert num.allclose(old_div(-loc[0], 2), q) # From topography formula q = get_maximum_inundation_elevation(filename + '.sww', verbose=verbose) loc = get_maximum_inundation_location(filename + '.sww') msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=1.0 / N), msg assert num.allclose(old_div(-loc[0], 2), q) # From topography formula q = get_maximum_inundation_elevation(filename + '.sww', time_interval=[0, 3]) msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=1.0 / N), msg # Check polygon mode # Runup region polygon = [[0.3, 0.0], [0.9, 0.0], [0.9, 1.0], [0.3, 1.0]] q = get_maximum_inundation_elevation(filename + '.sww', polygon=polygon, time_interval=[0, 3]) msg = 'We got %f, should have been %f' % (q, q_max) assert num.allclose(q, q_max, rtol=1.0 / N), msg # Offshore region polygon = [[0.9, 0.0], [1.0, 0.0], [1.0, 1.0], [0.9, 1.0]] q, loc = get_maximum_inundation_data(filename + '.sww', polygon=polygon, time_interval=[0, 3]) msg = 'We got %f, should have been %f' % (q, -0.475) assert num.allclose(q, -0.475, rtol=1.0 / N), msg assert is_inside_polygon(loc, polygon) assert num.allclose(old_div(-loc[0], 2), q) # From topography formula # Dry region polygon = [[0.0, 0.0], [0.4, 0.0], [0.4, 1.0], [0.0, 1.0]] q, loc = get_maximum_inundation_data(filename + '.sww', polygon=polygon, time_interval=[0, 3]) msg = 'We got %s, should have been None' % (q) assert q is None, msg msg = 'We got %s, should have been None' % (loc) assert loc is None, msg # Check what happens if no time point is within interval try: q = get_maximum_inundation_elevation(filename + '.sww', time_interval=[2.75, 2.75]) except AssertionError: pass else: msg = 'Time interval should have raised an exception' raise_(Exception, msg) # Cleanup try: pass #os.remove(domain.get_name() + '.sww') except: pass
def test_get_maximum_inundation_de0(self): """Test that sww information can be converted correctly to maximum runup elevation and location (without and with georeferencing) This test creates a slope and a runup which is maximal (~11m) at around 10s and levels out to the boundary condition (1m) at about 30s. """ import time, os from anuga.file.netcdf import NetCDFFile #Setup #from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular # Create basic mesh (100m x 100m) points, vertices, boundary = rectangular(20, 5, 100, 50) # Create shallow water domain domain = Domain(points, vertices, boundary) domain.set_flow_algorithm('DE0') domain.set_minimum_storable_height(0.01) filename = 'runup_test_3' domain.set_name(filename) swwfile = domain.get_name() + '.sww' domain.set_datadir('.') domain.format = 'sww' domain.smooth = True # FIXME (Ole): Backwards compatibility # Look at sww file and see what happens when # domain.tight_slope_limiters = 1 domain.tight_slope_limiters = 0 domain.use_centroid_velocities = 0 # Backwards compatibility (7/5/8) Br = Reflective_boundary(domain) Bd = Dirichlet_boundary([1.0,0,0]) #---------- First run without geo referencing domain.set_quantity('elevation', lambda x,y: -0.2*x + 14) # Slope domain.set_quantity('stage', -6) domain.set_boundary( {'left': Br, 'right': Bd, 'top': Br, 'bottom': Br}) for t in domain.evolve(yieldstep=1, finaltime = 50): pass # Check maximal runup runup, location, max_time = get_maximum_inundation_data(swwfile, return_time=True) #print 'Runup, location', runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332, 43.333332]) assert num.allclose(max_time, 10.0) # Check runup in restricted time interval runup, location, max_time = get_maximum_inundation_data(swwfile, time_interval=[0,9], return_time=True) #print 'Runup, location:',runup, location, max_time assert num.allclose(runup, 2.66666674614) assert num.allclose(location, [56.666668, 16.666666]) assert num.allclose(max_time, 9.0) # Check final runup runup, location = get_maximum_inundation_data(swwfile, time_interval=[45,50]) #print 'Runup, location:',runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332, 33.333332]) #assert num.allclose(max_time, 45.0) # Check runup restricted to a polygon p = [[50,1], [99,1], [99,40], [50,40]] runup, location = get_maximum_inundation_data(swwfile, polygon=p) #runup = get_maximum_inundation_elevation(swwfile, polygon=p) #location = get_maximum_inundation_location(swwfile, polygon=p) #print runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332, 33.333332]) #assert num.allclose(max_time, 11.0) # Check that mimimum_storable_height works fid = NetCDFFile(swwfile, netcdf_mode_r) # Open existing file stage = fid.variables['stage_c'][:] z = fid.variables['elevation_c'][:] xmomentum = fid.variables['xmomentum_c'][:] ymomentum = fid.variables['ymomentum_c'][:] for i in range(stage.shape[0]): h = stage[i]-z # depth vector at time step i # Check every node location for j in range(stage.shape[1]): # Depth being either exactly zero implies # momentum being zero. # Or else depth must be greater than or equal to # the minimal storable height if h[j] == 0.0: assert xmomentum[i,j] == 0.0 assert ymomentum[i,j] == 0.0 else: assert h[j] >= 0.0 fid.close() # Cleanup os.remove(swwfile) #------------- Now the same with georeferencing domain.time=0.0 E = 308500 N = 6189000 #E = N = 0 domain.geo_reference = Geo_reference(56, E, N) domain.set_quantity('elevation', lambda x,y: -0.2*x + 14) # Slope domain.set_quantity('stage', -6) domain.set_boundary( {'left': Br, 'right': Bd, 'top': Br, 'bottom': Br}) for t in domain.evolve(yieldstep=1, finaltime = 50): pass # Check maximal runup runup, location = get_maximum_inundation_data(swwfile) #print 'Runup, location', runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332+E, 43.333332+N]) #assert num.allclose(max_time, 10.0) # Check runup in restricted time interval runup, location = get_maximum_inundation_data(swwfile, time_interval=[0,9]) #print 'Runup, location:',runup, location, max_time assert num.allclose(runup, 2.66666674614) assert num.allclose(location, [56.666668+E, 16.666666+N]) #assert num.allclose(max_time, 9.0) # Check final runup runup, location = get_maximum_inundation_data(swwfile, time_interval=[45,50]) #print 'Runup, location:',runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332+E, 33.333332+N]) #assert num.allclose(max_time, 45.0) # Check runup restricted to a polygon p = num.array([[50,1], [99,1], [99,40], [50,40]], num.int) + num.array([E, N], num.int) runup, location = get_maximum_inundation_data(swwfile, polygon=p) #print runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332+E, 33.333332+N]) #assert num.allclose(max_time, 11.0) # Cleanup os.remove(swwfile)
def test_get_maximum_inundation_de0(self): """Test that sww information can be converted correctly to maximum runup elevation and location (without and with georeferencing) This test creates a slope and a runup which is maximal (~11m) at around 10s and levels out to the boundary condition (1m) at about 30s. """ import time, os from anuga.file.netcdf import NetCDFFile verbose = False #Setup #from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular # Create basic mesh (100m x 100m) points, vertices, boundary = rectangular(20, 5, 100, 50) # Create shallow water domain domain = Domain(points, vertices, boundary) domain.set_flow_algorithm('DE0') domain.set_low_froude(0) domain.set_minimum_storable_height(0.01) filename = 'runup_test_3' domain.set_name(filename) swwfile = domain.get_name() + '.sww' domain.set_datadir('.') domain.format = 'sww' domain.smooth = True # FIXME (Ole): Backwards compatibility # Look at sww file and see what happens when # domain.tight_slope_limiters = 1 domain.tight_slope_limiters = 0 domain.use_centroid_velocities = 0 # Backwards compatibility (7/5/8) Br = Reflective_boundary(domain) Bd = Dirichlet_boundary([1.0, 0, 0]) #---------- First run without geo referencing domain.set_quantity('elevation', lambda x, y: -0.2 * x + 14) # Slope domain.set_quantity('stage', -6) domain.set_boundary({'left': Br, 'right': Bd, 'top': Br, 'bottom': Br}) for t in domain.evolve(yieldstep=1, finaltime=50): pass # Check maximal runup runup, location, max_time = get_maximum_inundation_data( swwfile, return_time=True) if verbose: print('Runup, location', runup, location, max_time) assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332, 43.333332]) assert num.allclose(max_time, 10.0) # Check runup in restricted time interval runup, location, max_time = get_maximum_inundation_data( swwfile, time_interval=[0, 9], return_time=True) if verbose: print('Runup, location:', runup, location, max_time) assert num.allclose(runup, 2.66666674614) assert num.allclose(location, [56.666668, 16.666666]) assert num.allclose(max_time, 9.0) # Check final runup runup, location = get_maximum_inundation_data(swwfile, time_interval=[45, 50]) if verbose: print('Runup, location:', runup, location, max_time) assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332, 33.333332]) #assert num.allclose(max_time, 45.0) # Check runup restricted to a polygon p = [[50, 1], [99, 1], [99, 40], [50, 40]] runup, location = get_maximum_inundation_data(swwfile, polygon=p) #runup = get_maximum_inundation_elevation(swwfile, polygon=p) #location = get_maximum_inundation_location(swwfile, polygon=p) #print runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332, 33.333332]) #assert num.allclose(max_time, 11.0) # Check that mimimum_storable_height works fid = NetCDFFile(swwfile, netcdf_mode_r) # Open existing file stage = fid.variables['stage_c'][:] z = fid.variables['elevation_c'][:] xmomentum = fid.variables['xmomentum_c'][:] ymomentum = fid.variables['ymomentum_c'][:] for i in range(stage.shape[0]): h = stage[i] - z # depth vector at time step i # Check every node location for j in range(stage.shape[1]): # Depth being either exactly zero implies # momentum being zero. # Or else depth must be greater than or equal to # the minimal storable height if h[j] == 0.0: assert xmomentum[i, j] == 0.0 assert ymomentum[i, j] == 0.0 else: assert h[j] >= 0.0 fid.close() # Cleanup os.remove(swwfile) #------------- Now the same with georeferencing domain.time = 0.0 E = 308500 N = 6189000 #E = N = 0 domain.geo_reference = Geo_reference(56, E, N) domain.set_quantity('elevation', lambda x, y: -0.2 * x + 14) # Slope domain.set_quantity('stage', -6) domain.set_boundary({'left': Br, 'right': Bd, 'top': Br, 'bottom': Br}) for t in domain.evolve(yieldstep=1, finaltime=50): pass # Check maximal runup runup, location = get_maximum_inundation_data(swwfile) #print 'Runup, location', runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332 + E, 43.333332 + N]) #assert num.allclose(max_time, 10.0) # Check runup in restricted time interval runup, location = get_maximum_inundation_data(swwfile, time_interval=[0, 9]) #print 'Runup, location:',runup, location, max_time assert num.allclose(runup, 2.66666674614) assert num.allclose(location, [56.666668 + E, 16.666666 + N]) #assert num.allclose(max_time, 9.0) # Check final runup runup, location = get_maximum_inundation_data(swwfile, time_interval=[45, 50]) #print 'Runup, location:',runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332 + E, 33.333332 + N]) #assert num.allclose(max_time, 45.0) # Check runup restricted to a polygon p = num.array([[50, 1], [99, 1], [99, 40], [50, 40]], num.int) + num.array([E, N], num.int) runup, location = get_maximum_inundation_data(swwfile, polygon=p) #print runup, location, max_time assert num.allclose(runup, 3.33333325386) assert num.allclose(location, [53.333332 + E, 33.333332 + N]) #assert num.allclose(max_time, 11.0) # Cleanup os.remove(swwfile)
plot(reference_time, validation_data[name], 'r-', reference_time, model, 'k-') title('Gauge %s' %name) xlabel('time(s)') ylabel('stage (m)') legend(('Observed', 'Modelled'), shadow=True, loc='upper left') #savefig(name, dpi = 300) savefig(name) # Check max runup q, loc, time = get_maximum_inundation_data(sww_filename, return_time=True) if verbose: print 'Observed results' print 'Max runup elevation (m): 0.0875, 0.09, 0.08, 0.09, 0.1, 0.09, Average 0.09' print 'Max runup elevation (scaled by 400) (m): Average 36' print 'Max runup location: [5.1575, 1.88]' print 'Max runup time (s): 16.5' print 'Model Results' print 'Max runup elevation (m): ', q print 'Max runup elevation (scaled by 400) (m): ', q*400 print 'Max runup location: ', loc print 'Max runup time (s): ',time #assert is_inside_polygon(loc, gulleys)