def test_triangle_areas(self):
"""
Check that triangle areas is working as it should
"""
self.create_domain(InitialOceanStage=1.,
InitialLandStage=0.,
flowAlg='DE0',
verbose=verbose)
p = util.get_output('test_plot_utils.sww')
pc = util.get_centroids(p, velocity_extrapolation=True)
# Check that subsetting works
ta = util.triangle_areas(p)
ta_1 = util.triangle_areas(p, range(10))
assert (all(ta[range(10)] == ta_1))
# Independently compute an example and check it
x0 = p.x[p.vols[0][0]]
y0 = p.y[p.vols[0][0]]
x1 = p.x[p.vols[0][1]]
y1 = p.y[p.vols[0][1]]
x2 = p.x[p.vols[0][2]]
y2 = p.y[p.vols[0][2]]
# Use 0.5 a * b
len_a = ((x1 - x0)**2 + (y1 - y0)**2)**0.5
vec_01 = np.array([x1 - x0, y1 - y0])
vec_01 = vec_01 / ((vec_01**2).sum())**0.5
vec_01_perp = np.array([vec_01[1], -vec_01[0]])
len_b = (x2 - x0) * vec_01_perp[0] + (y2 - y0) * vec_01_perp[1]
assert (np.allclose(abs(0.5 * len_a * len_b), ta[0]))
os.remove('test_plot_utils.sww')
def test_triangle_areas(self):
"""
Check that triangle areas is working as it should
"""
self.create_domain(InitialOceanStage=1., InitialLandStage=0., flowAlg='DE0', verbose=verbose)
p=util.get_output('test_plot_utils.sww')
pc=util.get_centroids(p,velocity_extrapolation=True)
# Check that subsetting works
ta=util.triangle_areas(p)
ta_1=util.triangle_areas(p,range(10))
assert(all(ta[range(10)]==ta_1))
# Independently compute an example and check it
x0=p.x[p.vols[0][0]]
y0=p.y[p.vols[0][0]]
x1=p.x[p.vols[0][1]]
y1=p.y[p.vols[0][1]]
x2=p.x[p.vols[0][2]]
y2=p.y[p.vols[0][2]]
# Use 0.5 a * b
len_a = ((x1-x0)**2 + (y1-y0)**2)**0.5
vec_01 = np.array([ x1-x0, y1-y0])
vec_01 = vec_01/((vec_01**2).sum())**0.5
vec_01_perp=np.array([vec_01[1], -vec_01[0]])
len_b = (x2-x0)*vec_01_perp[0] + (y2-y0)*vec_01_perp[1]
assert(np.allclose(abs(0.5*len_a*len_b),ta[0]))
os.remove('test_plot_utils.sww')
def basic_checks(self):
"""
Check that dimensions are as required, and that
if we extract centroids by passing the file name
we get the same result as if we pass the get_output object
"""
p = util.get_output('test_plot_utils.sww')
# Check that dimesions are ok
l_time = len(p.time)
l_space = len(p.x)
assert (len(p.y) == l_space)
assert (p.stage.shape == (l_time, l_space))
assert (p.vel.shape == (l_time, l_space))
assert (p.xmom.shape == (l_time, l_space))
assert (p.ymom.shape == (l_time, l_space))
assert (p.xvel.shape == (l_time, l_space))
assert (p.yvel.shape == (l_time, l_space))
assert (p.elev.shape == (l_space, ))
assert (p.friction.shape == (l_space, ))
p2 = util.get_centroids(p, velocity_extrapolation=True)
l_space = len(
p.vols) # len(vols in vertex quantities) = len(centroids)
assert (p2.stage.shape == (l_time, l_space))
assert (p2.vel.shape == (l_time, l_space))
assert (p2.xmom.shape == (l_time, l_space))
assert (p2.ymom.shape == (l_time, l_space))
assert (p2.xvel.shape == (l_time, l_space))
assert (p2.yvel.shape == (l_time, l_space))
assert (p2.elev.shape == (l_space, ))
assert (p2.friction.shape == (l_space, ))
# Read centroids as a file, and check that it is the same as above for a couple of time-slices
p3 = util.get_centroids('test_plot_utils.sww',
velocity_extrapolation=True)
self.everything_equal(p3, 2, p2, 2)
self.everything_equal(p3, 4, p2, 4)
def basic_checks(self):
"""
Check that dimensions are as required, and that
if we extract centroids by passing the file name
we get the same result as if we pass the get_output object
"""
p=util.get_output('test_plot_utils.sww')
# Check that dimesions are ok
l_time=len(p.time)
l_space=len(p.x)
assert(len(p.y)==l_space)
assert(p.stage.shape==(l_time,l_space))
assert(p.vel.shape==(l_time,l_space))
assert(p.xmom.shape==(l_time,l_space))
assert(p.ymom.shape==(l_time,l_space))
assert(p.xvel.shape==(l_time,l_space))
assert(p.yvel.shape==(l_time,l_space))
assert(p.elev.shape==(l_space,))
assert(p.friction.shape==(l_space,))
p2=util.get_centroids(p,velocity_extrapolation=True)
l_space=len(p.vols) # len(vols in vertex quantities) = len(centroids)
assert(p2.stage.shape==(l_time,l_space))
assert(p2.vel.shape==(l_time,l_space))
assert(p2.xmom.shape==(l_time,l_space))
assert(p2.ymom.shape==(l_time,l_space))
assert(p2.xvel.shape==(l_time,l_space))
assert(p2.yvel.shape==(l_time,l_space))
assert(p2.elev.shape==(l_space,))
assert(p2.friction.shape==(l_space,))
# Read centroids as a file, and check that it is the same as above for a couple of time-slices
p3=util.get_centroids('test_plot_utils.sww',velocity_extrapolation=True)
self.everything_equal(p3, 2, p2, 2)
self.everything_equal(p3, 4, p2, 4)
def test_quantity_consistency(self):
"""
Check that the expected relations exist between stage, elevation,
height, xmom,xvel,ymom,yvel
"""
for flowAlg in flow_algorithms:
if(verbose):
print flowAlg
self.create_domain(InitialOceanStage=1., InitialLandStage=0., flowAlg=flowAlg, verbose=verbose)
pc=util.get_centroids('test_plot_utils.sww')
l=len(pc.time)-1
self.quantity_consistency_check(pc,l)
os.remove('test_plot_utils.sww')
def test_near_points(self):
"""
Check that the near-points function is working
"""
self.create_domain(InitialOceanStage=1.,
InitialLandStage=0.,
flowAlg='DE0',
verbose=verbose)
p = util.get_output('test_plot_utils.sww')
pc = util.get_centroids(p, velocity_extrapolation=True)
# First check -- get points along y==50
nt = util.near_transect(pc, [20., 50.], [80., 50.], tol=10.)
assert (all(abs(pc.y[nt[0]] - 50.) < 10.))
assert (all(nt[1] >= 0.))
assert (all(nt[1] <= 60.))
assert (np.allclose(pc.x[nt[0]] - 20., nt[1]))
# Next check -- get points along x==50
nt = util.near_transect(pc, [50., 20.], [50., 80.], tol=10.)
assert (all(abs(pc.x[nt[0]] - 50.) < 10.))
assert (all(nt[1] >= 0.))
assert (all(nt[1] <= 60.))
assert (np.allclose(pc.y[nt[0]] - 20., nt[1]))
# Next check -- get points along x==y
nt = util.near_transect(pc, [20., 20.], [80., 80.], tol=10.)
assert (all(nt[1] >= 0.))
# Length of line is 60*sqrt(2)
assert (all(nt[1] <= 60. * 2**0.5))
# Coords must be within 10*sqrt(2) of each other
assert (all(abs(pc.x[nt[0]] - pc.y[nt[0]]) < 10. * 2**0.5))
# The dot product of the points along the line is equal to nt[1]
dt_Prd = ((pc.x[nt[0]] - 20.) / 2.**0.5 +
(pc.y[nt[0]] - 20.) / 2.**0.5)
assert (np.allclose(dt_Prd, nt[1]))
# Next check -- get points along x==2*y + 5
nt = util.near_transect(pc, [25., 10.], [85., 40.], tol=10.)
assert (all(nt[1] >= 0.))
# Length of line is sqrt(60^2+30^3)
assert (all(nt[1] <= (60.**2 + 30.**2)**0.5))
# The dot product of the points along the line is equal to nt[1]
# Unit vector along line is (1,0.5)/ll
ll = (1.**2 + 0.5**2)**0.5
dt_Prd = ((pc.x[nt[0]] - 25.) / ll + (pc.y[nt[0]] - 10.) * 0.5 / ll)
assert (np.allclose(dt_Prd, nt[1]))
os.remove('test_plot_utils.sww')
def test_quantity_consistency(self):
"""
Check that the expected relations exist between stage, elevation,
height, xmom,xvel,ymom,yvel
"""
for flowAlg in flow_algorithms:
if (verbose):
print flowAlg
self.create_domain(InitialOceanStage=1.,
InitialLandStage=0.,
flowAlg=flowAlg,
verbose=verbose)
pc = util.get_centroids('test_plot_utils.sww')
l = len(pc.time) - 1
self.quantity_consistency_check(pc, l)
os.remove('test_plot_utils.sww')
def test_water_volume(self):
""" Check that water volume is right
We assume triangle areas are computed ok, but note they are tested above
"""
self.create_domain(InitialOceanStage=1., InitialLandStage=0., flowAlg='DE0', verbose=verbose)
p=util.get_output('test_plot_utils.sww')
pc=util.get_centroids(p,velocity_extrapolation=True)
# Check that subsetting works
ta=util.triangle_areas(p)
# Independently computed water volume
wVol_2=(ta*pc.height[2,:]).sum()
wv=util.water_volume(p,pc)
assert(np.allclose(wVol_2, wv[2]))
os.remove('test_plot_utils.sww')
def test_near_points(self):
"""
Check that the near-points function is working
"""
self.create_domain(InitialOceanStage=1., InitialLandStage=0., flowAlg='DE0', verbose=verbose)
p=util.get_output('test_plot_utils.sww')
pc=util.get_centroids(p,velocity_extrapolation=True)
# First check -- get points along y==50
nt=util.near_transect(pc, [20., 50.], [80., 50.], tol=10.)
assert(all(abs(pc.y[nt[0]]-50.)<10.))
assert(all(nt[1]>=0.))
assert(all(nt[1]<=60.))
assert(np.allclose(pc.x[nt[0]]-20., nt[1]))
# Next check -- get points along x==50
nt=util.near_transect(pc, [50., 20.], [50., 80.], tol=10.)
assert(all(abs(pc.x[nt[0]]-50.)<10.))
assert(all(nt[1]>=0.))
assert(all(nt[1]<=60.))
assert(np.allclose(pc.y[nt[0]]-20., nt[1]))
# Next check -- get points along x==y
nt=util.near_transect(pc, [20., 20.], [80., 80.], tol=10.)
assert(all(nt[1]>=0.))
# Length of line is 60*sqrt(2)
assert(all(nt[1]<=60.*2**0.5))
# Coords must be within 10*sqrt(2) of each other
assert(all(abs( pc.x[nt[0]]-pc.y[nt[0]]) < 10.*2**0.5))
# The dot product of the points along the line is equal to nt[1]
dt_Prd=( (pc.x[nt[0]]-20.)/2.**0.5 + (pc.y[nt[0]]-20.)/2.**0.5)
assert(np.allclose(dt_Prd , nt[1]))
# Next check -- get points along x==2*y + 5
nt=util.near_transect(pc, [25., 10.], [85., 40.], tol=10.)
assert(all(nt[1]>=0.))
# Length of line is sqrt(60^2+30^3)
assert(all(nt[1]<=(60.**2+30.**2)**0.5))
# The dot product of the points along the line is equal to nt[1]
# Unit vector along line is (1,0.5)/ll
ll=(1.**2+0.5**2)**0.5
dt_Prd=( (pc.x[nt[0]]-25.)/ll + (pc.y[nt[0]]-10.)*0.5/ll)
assert(np.allclose(dt_Prd , nt[1]))
os.remove('test_plot_utils.sww')
def test_triangle_containing_point(self):
import matplotlib.tri as tri
# older versions of matplotlib don't have this procedure
if not hasattr(tri.Triangulation,"get_trifinder"):
return
self.create_domain(InitialOceanStage=1., InitialLandStage=0., flowAlg='DE0', verbose=verbose)
p = util.get_output('test_plot_utils.sww')
pc = util.get_centroids(p, velocity_extrapolation=True)
# Compare lookup using the 2 different function
point_index_1 = util.get_triangle_containing_point(p, [50., 50.])
tri_lookup = util.get_triangle_lookup_function(p)
assert( point_index_1 == tri_lookup(50., 50.) )
def test_water_volume(self):
""" Check that water volume is right
We assume triangle areas are computed ok, but note they are tested above
"""
self.create_domain(InitialOceanStage=1.,
InitialLandStage=0.,
flowAlg='DE0',
verbose=verbose)
p = util.get_output('test_plot_utils.sww')
pc = util.get_centroids(p, velocity_extrapolation=True)
# Check that subsetting works
ta = util.triangle_areas(p)
# Independently computed water volume
wVol_2 = (ta * pc.height[2, :]).sum()
wv = util.water_volume(p, pc)
assert (np.allclose(wVol_2, wv[2]))
os.remove('test_plot_utils.sww')
def test_triangle_containing_point(self):
import matplotlib.tri as tri
# older versions of matplotlib don't have this procedure
if not hasattr(tri.Triangulation, "get_trifinder"):
return
self.create_domain(InitialOceanStage=1.,
InitialLandStage=0.,
flowAlg='DE0',
verbose=verbose)
p = util.get_output('test_plot_utils.sww')
pc = util.get_centroids(p, velocity_extrapolation=True)
# Compare lookup using the 2 different function
point_index_1 = util.get_triangle_containing_point(p, [50., 50.])
tri_lookup = util.get_triangle_lookup_function(p)
assert (point_index_1 == tri_lookup(50., 50.))
def test_dam_break_dry(self):
if verbose:
print
print indent + 'Running simulation script'
s = 'numerical_dam_break_dry.py'
res = anuga.run_anuga_script(s, args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent + 'Testing accuracy'
import anuga.utilities.plot_utils as util
import analytical_dam_break_dry as analytic
p_st = util.get_output('dam_break.sww')
p2_st = util.get_centroids(p_st)
v = p2_st.y[10]
v2 = (p2_st.y == v)
h0 = 1.0
h1 = 10.0
# calculate analytic values at various time slices
h10, u10 = analytic.vec_dam_break(p2_st.x[v2],
p2_st.time[10],
h0=h0,
h1=h1)
h50, u50 = analytic.vec_dam_break(p2_st.x[v2],
p2_st.time[50],
h0=h0,
h1=h1)
h100, u100 = analytic.vec_dam_break(p2_st.x[v2],
p2_st.time[100],
h0=h0,
h1=h1)
#Test stages
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eh10 = numpy.sum(numpy.abs(p2_st.stage[10, v2] - h10)) / numpy.sum(
numpy.abs(h10))
eh50 = numpy.sum(numpy.abs(p2_st.stage[50, v2] - h50)) / numpy.sum(
numpy.abs(h50))
eh100 = numpy.sum(numpy.abs(p2_st.stage[100, v2] - h100)) / numpy.sum(
numpy.abs(h100))
print
print indent + 'Errors in stage: ', eh10, eh50, eh100
#Test xmomenta
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
euh10 = numpy.sum(
numpy.abs(p2_st.xmom[10, v2] - u10 * h10)) / numpy.sum(
numpy.abs(u10 * h10))
euh50 = numpy.sum(
numpy.abs(p2_st.xmom[50, v2] - u50 * h50)) / numpy.sum(
numpy.abs(u50 * h50))
euh100 = numpy.sum(
numpy.abs(p2_st.xmom[100, v2] - u100 * h100)) / numpy.sum(
numpy.abs(u100 * h100))
print indent + 'Errors in xmomentum: ', euh10, euh50, euh100
#Test xvelocity
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eu10 = numpy.sum(numpy.abs(p2_st.xvel[10, v2] - u10)) / numpy.sum(
numpy.abs(u10))
eu50 = numpy.sum(numpy.abs(p2_st.xvel[50, v2] - u50)) / numpy.sum(
numpy.abs(u50))
eu100 = numpy.sum(numpy.abs(p2_st.xvel[100, v2] - u100)) / numpy.sum(
numpy.abs(u100))
print indent + 'Errors in xvelocity: ', eu10, eu50, eu100
assert eh10 < 0.1, 'Relative L^1 error %g greater than 0.1' % eh10
assert eh50 < 0.1, 'Relative L^1 error %g greater than 0.1' % eh50
assert eh100 < 0.15, 'Relative L^1 error %g greater than 0.15' % eh100
assert euh10 < 0.25, 'Relative L^1 error %g greater than 0.25' % euh10
assert euh50 < 0.25, 'Relative L^1 error %g greater than 0.25' % euh50
assert euh100 < 0.25, 'Relative L^1 error %g greater than 0.25' % euh100
assert eu10 < 2.0, 'Relative L^1 error %g greater than 2.0' % eu10
assert eu50 < 2.0, 'Relative L^1 error %g greater than 2.0' % eu50
assert eu100 < 0.3, 'Relative L^1 error %g greater than 0.3' % eu100
def test_avalanche_dry(self):
if verbose:
print
print indent + 'Running simulation script'
# Run basic script (can be parallel if -np used in call
# to this script
s = 'numerical_avalanche_dry.py'
res = anuga.run_anuga_script(s, args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent + 'Testing accuracy'
import anuga.utilities.plot_utils as util
from analytical_avalanche_dry import analytical_sol
p_st = util.get_output('avalanche.sww')
p2_st = util.get_centroids(p_st)
v = p2_st.y[10]
v2 = (p2_st.y == v)
x_n = p2_st.x[v2]
u0, h0, w0, z0, p0 = analytical_sol(x_n, p2_st.time[0])
u10, h10, w10, z10, p10 = analytical_sol(x_n, p2_st.time[10])
u30, h30, w30, z30, p30 = analytical_sol(x_n, p2_st.time[30])
w0_n = p2_st.stage[0, v2]
w10_n = p2_st.stage[10, v2]
w30_n = p2_st.stage[30, v2]
z_n = p2_st.elev[v2]
uh0_n = p2_st.xmom[0, v2]
uh10_n = p2_st.xmom[10, v2]
uh30_n = p2_st.xmom[30, v2]
u0_n = p2_st.xvel[0, v2]
u10_n = p2_st.xvel[10, v2]
u30_n = p2_st.xvel[30, v2]
#Test stages
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eh10 = numpy.sum(numpy.abs(w10_n - w10)) / numpy.sum(numpy.abs(w10))
eh30 = numpy.sum(numpy.abs(w30_n - w30)) / numpy.sum(numpy.abs(w30))
print
print indent + 'Errors in stage: ', eh10, eh30
#Test xmomenta
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
euh10 = numpy.sum(numpy.abs(uh10_n - u10 * h10)) / numpy.sum(
numpy.abs(u10 * h10))
euh30 = numpy.sum(numpy.abs(uh30_n - u30 * h30)) / numpy.sum(
numpy.abs(u30 * h30))
print indent + 'Errors in xmomentum: ', euh10, euh30
#Test xvelocity
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eu10 = numpy.sum(numpy.abs(u10_n - u10)) / numpy.sum(numpy.abs(u10))
eu30 = numpy.sum(numpy.abs(u30_n - u30)) / numpy.sum(numpy.abs(u30))
print indent + 'Errors in xvelocity: ', eu10, eu30
assert eh10 < 0.01, 'L^1 error %g greater than 1 percent' % eh10
assert eh30 < 0.01, 'L^1 error %g greater than 1 percent' % eh30
assert euh10 < 0.025, 'L^1 error %g greater than 2.5 percent' % euh10
assert euh30 < 0.025, 'L^1 error %g greater than 2.5 percent' % euh30
assert eu10 < 0.2, 'L^1 error %g greater than 20 percent' % eu10
assert eu30 < 0.2, 'L^1 error %g greater than 20 percent' % eu30
"""
Quick plot of the dam break outputs
"""
import anuga.utilities.plot_utils as util
import matplotlib
matplotlib.use("Agg")
from matplotlib import pyplot as pyplot
from numpy import ones, zeros
p_st = util.get_output("immersed_bump.sww")
p2_st = util.get_centroids(p_st)
v = p2_st.y[10]
v2 = p2_st.y == v
# p_dev = util.get_output('dam_break.sww', 0.001)
# p2_dev=util.get_centroids(p_dev, velocity_extrapolation=True)
# Plot stages
pyplot.clf()
pyplot.plot(p2_st.x[v2], p2_st.stage[10, v2], "b.", label="numerical stage")
pyplot.plot(p2_st.x[v2], p2_st.elev[v2], "k-", label="discretised bed")
pyplot.plot(p2_st.x[v2], 0.5 * ones(len(p2_st.x[v2])), "r-", label="analytical stage")
pyplot.title("Stage at an instant in time")
pyplot.legend(loc="best")
pyplot.ylim([0.0, 0.6])
pyplot.xlabel("Xposition")
pyplot.ylabel("Stage")
pyplot.savefig("stage_plot.png")
def test_carrier_greenspan_periodic(self):
if verbose:
print
print indent+'Running simulation script'
s = 'numerical_carrier_greenspan.py'
res = anuga.run_anuga_script(s,args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent+'Testing accuracy'
import anuga.utilities.plot_utils as util
from analytical_carrier_greenspan import analytic_cg
p_st = util.get_output('carrier_greenspan.sww')
p2_st=util.get_centroids(p_st)
v = p2_st.y[10]
v2=(p2_st.y==v)
x_n = p2_st.x[v2]
#ids = [288, 296, 304, 312, 320, 328]
ids = [296, 304, 320, 328]
# For the velocity and xmomentum calculations use
# absolute error (as the exact solution is 0)
use_absolute = [False, False, False, False]
n = len(ids)
W, P, Z, H, U = [], [], [], [], []
W_n, U_n, UH_n = [], [], []
for i, id in enumerate(ids):
w0, p0, z0, h0, u0 = analytic_cg(x_n, p2_st.time[id], h0=5e2, L=5e4, a=1.0, Tp=900.0)
W.append(w0)
H.append(h0)
U.append(u0)
W_n.append(p2_st.stage[id,v2])
UH_n.append(p2_st.xmom[id,v2])
U_n.append(p2_st.xvel[id,v2])
#print id, numpy.max(H[i]), numpy.min(H[i])
#print id, numpy.max(U[i]), numpy.min(U[i])
#print id, numpy.max(U_n[i]), numpy.min(U_n[i])
#Test stages
# Calculate L^1 error at times
ew = numpy.zeros(n)
for i, id in enumerate(ids):
ew[i] = numpy.sum(numpy.abs(W_n[i]-W[i]))/numpy.sum(numpy.abs(W[i]))
print
print indent+'L^1 Errors in stage: ', ew
#Test xmomenta
# Calculate L^1 error at times
euh = numpy.zeros(n)
for i, id in enumerate(ids):
if use_absolute[i]:
euh[i] = numpy.sum(numpy.abs(UH_n[i]-U[i]*H[i]))/len(U[i])
else:
euh[i] = numpy.sum(numpy.abs(UH_n[i]-U[i]*H[i]))/numpy.sum(numpy.abs(UH_n[i]))
print indent+'L^1 Errors in xmomentum: ',euh
#Test xvelocity
# Calculate L^1 error at times
eu = numpy.zeros(n)
for i, id in enumerate(ids):
if use_absolute[i]:
eu[i] = numpy.sum(numpy.abs(U_n[i]-U[i]))/len(U[i])
else:
eu[i] = numpy.sum(numpy.abs(U_n[i]-U[i]))/numpy.sum(numpy.abs(U[i]))
print indent+'L^1 Errors in xvelocity: ', eu
for i, id in enumerate(ids):
assert ew[i] < 0.01, 'L^1 error %g greater than 1 percent'% ew[i]
for i, id in enumerate(ids):
assert euh[i] < 0.025, 'L^1 error %g greater than 2.5 percent'% euh[i]
for i, id in enumerate(ids):
assert eu[i] < 0.1, 'L^1 error %g greater than 10 percent'% eu[i]
def test_carrier_greenspan_transient(self):
if verbose:
print
print indent + 'Running simulation script'
s = 'numerical_cg_transient.py'
res = anuga.run_anuga_script(s, args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent + 'Testing accuracy'
import anuga.utilities.plot_utils as util
from analytical_cg_transient import analytical_sol
p_st = util.get_output('carrier_greenspan.sww')
p2_st = util.get_centroids(p_st)
v = p2_st.y[10]
v2 = (p2_st.y == v)
x_n = p2_st.x[v2]
ids = [1, 15, 30]
use_absolute = [False, True, True]
n = len(ids)
W, UH, Z, H, U = [], [], [], [], []
W_n, U_n, UH_n = [], [], []
#Dimensional parameters
L = 5e4 # Length of channel (m)
h0 = 5e2 # Height at origin when the water is still
g = 9.81 # Gravity
for i, id in enumerate(ids):
w, z, u = analytical_sol(x_n / L,
p2_st.time[id] * sqrt(g * h0) / L)
w = w * h0
z = z * h0
u = u * sqrt(g * h0)
h = w - z
uh = u * h
W.append(w)
Z.append(z)
H.append(h)
U.append(u)
UH.append(uh)
W_n.append(p2_st.stage[id, v2])
UH_n.append(p2_st.xmom[id, v2])
U_n.append(p2_st.xvel[id, v2])
#print id, numpy.max(H[i]), numpy.min(H[i])
#print id, numpy.max(U[i]), numpy.min(U[i])
#print id, numpy.max(U_n[i]), numpy.min(U_n[i])
#Test stages
# Calculate L^1 error at times
ew = numpy.zeros(n)
for i, id in enumerate(ids):
ew[i] = numpy.sum(numpy.abs(W_n[i] - W[i])) / numpy.sum(
numpy.abs(W[i]))
print
print indent + 'L^1 Errors in stage: ', ew
#Test xmomenta
# Calculate L^1 error at times
euh = numpy.zeros(n)
for i, id in enumerate(ids):
euh[i] = numpy.sum(numpy.abs(UH_n[i] - U[i] * H[i])) / numpy.sum(
numpy.abs(UH_n[i]))
print indent + 'L^1 Errors in xmomentum: ', euh
#Test xvelocity
# Calculate L^1 error at times
eu = numpy.zeros(n)
for i, id in enumerate(ids):
if use_absolute[i]:
eu[i] = numpy.sum(numpy.abs(U_n[i] - U[i])) / len(U[i])
else:
eu[i] = numpy.sum(numpy.abs(U_n[i] - U[i])) / numpy.sum(
numpy.abs(U[i]))
print indent + 'L^1 Errors in xvelocity: ', eu
for i, id in enumerate(ids):
assert ew[i] < 0.01, 'L^1 error %g greater than 1 percent' % ew[i]
for i, id in enumerate(ids):
assert euh[
i] < 0.025, 'L^1 error %g greater than 2.5 percent' % euh[i]
for i, id in enumerate(ids):
assert eu[
i] < 0.025, 'L^1 error %g greater than 2.5 percent' % eu[i]
def test_carrier_greenspan_transient(self):
if verbose:
print
print indent+'Running simulation script'
s = 'numerical_cg_transient.py'
res = anuga.run_anuga_script(s,args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent+'Testing accuracy'
import anuga.utilities.plot_utils as util
from analytical_cg_transient import analytical_sol
p_st = util.get_output('carrier_greenspan.sww')
p2_st=util.get_centroids(p_st)
v = p2_st.y[10]
v2=(p2_st.y==v)
x_n = p2_st.x[v2]
ids = [1, 15, 30]
use_absolute = [False, True, True]
n = len(ids)
W, UH, Z, H, U = [], [], [], [], []
W_n, U_n, UH_n = [], [], []
#Dimensional parameters
L = 5e4 # Length of channel (m)
h0 = 5e2 # Height at origin when the water is still
g = 9.81 # Gravity
for i, id in enumerate(ids):
w, z, u = analytical_sol(x_n/L, p2_st.time[id]*sqrt(g*h0)/L)
w = w*h0
z = z*h0
u = u*sqrt(g*h0)
h = w-z
uh = u*h
W.append(w)
Z.append(z)
H.append(h)
U.append(u)
UH.append(uh)
W_n.append(p2_st.stage[id,v2])
UH_n.append(p2_st.xmom[id,v2])
U_n.append(p2_st.xvel[id,v2])
#print id, numpy.max(H[i]), numpy.min(H[i])
#print id, numpy.max(U[i]), numpy.min(U[i])
#print id, numpy.max(U_n[i]), numpy.min(U_n[i])
#Test stages
# Calculate L^1 error at times
ew = numpy.zeros(n)
for i, id in enumerate(ids):
ew[i] = numpy.sum(numpy.abs(W_n[i]-W[i]))/numpy.sum(numpy.abs(W[i]))
print
print indent+'L^1 Errors in stage: ', ew
#Test xmomenta
# Calculate L^1 error at times
euh = numpy.zeros(n)
for i, id in enumerate(ids):
euh[i] = numpy.sum(numpy.abs(UH_n[i]-U[i]*H[i]))/numpy.sum(numpy.abs(UH_n[i]))
print indent+'L^1 Errors in xmomentum: ',euh
#Test xvelocity
# Calculate L^1 error at times
eu = numpy.zeros(n)
for i, id in enumerate(ids):
if use_absolute[i]:
eu[i] = numpy.sum(numpy.abs(U_n[i]-U[i]))/len(U[i])
else:
eu[i] = numpy.sum(numpy.abs(U_n[i]-U[i]))/numpy.sum(numpy.abs(U[i]))
print indent+'L^1 Errors in xvelocity: ', eu
for i, id in enumerate(ids):
assert ew[i] < 0.01, 'L^1 error %g greater than 1 percent'% ew[i]
for i, id in enumerate(ids):
assert euh[i] < 0.025, 'L^1 error %g greater than 2.5 percent'% euh[i]
for i, id in enumerate(ids):
assert eu[i] < 0.025, 'L^1 error %g greater than 2.5 percent'% eu[i]
Quick plot of the dam break outputs
"""
import numpy
from numpy import zeros
import anuga.utilities.plot_utils as util
import matplotlib
matplotlib.use("Agg")
from matplotlib import pyplot as pyplot
from math import sqrt, pi, cos, sin
from analytical_parabolic_basin import analytic_cannal
# Get the sww file
p_st = util.get_output("parabola.sww")
p2_st = util.get_centroids(p_st, velocity_extrapolation=True) # (p_st, velocity_extrapolation=True)
index_origin = 3978
v = p2_st.y[index_origin]
v2 = p2_st.y == v
# Compute the analytical solution
time_level = 200
u, h, w, z = analytic_cannal(p2_st.x[v2], p2_st.time[time_level])
# Plot stages
pyplot.clf()
pyplot.plot(p2_st.x[v2], p2_st.stage[time_level, v2], "b.", label="numerical stage")
pyplot.plot(p2_st.x[v2], p2_st.elev[v2], "k-", label="bed elevation")
pyplot.plot(p2_st.x[v2], w, "r-", label="analytical stage")
##21102,
##21106,
##21110,
##21114,
##21118,
##21122,
##21126,
##21130
## ]
indicesR = [25232, 25236, 25240, 25244, 25248, 25252, 25256, 25260, 25264, 25268, 25272, 25276]
# Get the sww file
p = util.get_output("dam_break.sww")
p2 = util.get_centroids(p)
N = len(p2.time)
Sh = zeros(N)
for i in range(N):
for k in range(len(indicesL)):
Sh[i] += p2.stage[i, indicesL[k]] ** 2
Sh[i] -= p2.stage[i, indicesR[k]] ** 2
fudge_factor = 1.0
length = 0.12
g = 9.8
rho_w = 1024
average_pressure = 0.5 * g * Sh / len(indicesL) * rho_w
def test_avalanche_dry(self):
if verbose:
print
print indent + "Running simulation script"
# Run basic script (can be parallel if -np used in call
# to this script
s = "numerical_avalanche_dry.py"
res = anuga.run_anuga_script(s, args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent + "Testing accuracy"
import anuga.utilities.plot_utils as util
from analytical_avalanche_dry import analytical_sol
p_st = util.get_output("avalanche.sww")
p2_st = util.get_centroids(p_st)
v = p2_st.y[10]
v2 = p2_st.y == v
x_n = p2_st.x[v2]
u0, h0, w0, z0, p0 = analytical_sol(x_n, p2_st.time[0])
u10, h10, w10, z10, p10 = analytical_sol(x_n, p2_st.time[10])
u30, h30, w30, z30, p30 = analytical_sol(x_n, p2_st.time[30])
w0_n = p2_st.stage[0, v2]
w10_n = p2_st.stage[10, v2]
w30_n = p2_st.stage[30, v2]
z_n = p2_st.elev[v2]
uh0_n = p2_st.xmom[0, v2]
uh10_n = p2_st.xmom[10, v2]
uh30_n = p2_st.xmom[30, v2]
u0_n = p2_st.xvel[0, v2]
u10_n = p2_st.xvel[10, v2]
u30_n = p2_st.xvel[30, v2]
# Test stages
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eh10 = numpy.sum(numpy.abs(w10_n - w10)) / numpy.sum(numpy.abs(w10))
eh30 = numpy.sum(numpy.abs(w30_n - w30)) / numpy.sum(numpy.abs(w30))
print
print indent + "Errors in stage: ", eh10, eh30
# Test xmomenta
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
euh10 = numpy.sum(numpy.abs(uh10_n - u10 * h10)) / numpy.sum(numpy.abs(u10 * h10))
euh30 = numpy.sum(numpy.abs(uh30_n - u30 * h30)) / numpy.sum(numpy.abs(u30 * h30))
print indent + "Errors in xmomentum: ", euh10, euh30
# Test xvelocity
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eu10 = numpy.sum(numpy.abs(u10_n - u10)) / numpy.sum(numpy.abs(u10))
eu30 = numpy.sum(numpy.abs(u30_n - u30)) / numpy.sum(numpy.abs(u30))
print indent + "Errors in xvelocity: ", eu10, eu30
assert eh10 < 0.01, "L^1 error %g greater than 1 percent" % eh10
assert eh30 < 0.01, "L^1 error %g greater than 1 percent" % eh30
assert euh10 < 0.025, "L^1 error %g greater than 2.5 percent" % euh10
assert euh30 < 0.025, "L^1 error %g greater than 2.5 percent" % euh30
assert eu10 < 0.2, "L^1 error %g greater than 20 percent" % eu10
assert eu30 < 0.2, "L^1 error %g greater than 20 percent" % eu30
def test_carrier_greenspan_periodic(self):
if verbose:
print
print indent + 'Running simulation script'
s = 'numerical_carrier_greenspan.py'
res = anuga.run_anuga_script(s, args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent + 'Testing accuracy'
import anuga.utilities.plot_utils as util
from analytical_carrier_greenspan import analytic_cg
p_st = util.get_output('carrier_greenspan.sww')
p2_st = util.get_centroids(p_st)
v = p2_st.y[10]
v2 = (p2_st.y == v)
x_n = p2_st.x[v2]
#ids = [288, 296, 304, 312, 320, 328]
ids = [296, 304, 320, 328]
# For the velocity and xmomentum calculations use
# absolute error (as the exact solution is 0)
use_absolute = [False, False, False, False]
n = len(ids)
W, P, Z, H, U = [], [], [], [], []
W_n, U_n, UH_n = [], [], []
for i, id in enumerate(ids):
w0, p0, z0, h0, u0 = analytic_cg(x_n,
p2_st.time[id],
h0=5e2,
L=5e4,
a=1.0,
Tp=900.0)
W.append(w0)
H.append(h0)
U.append(u0)
W_n.append(p2_st.stage[id, v2])
UH_n.append(p2_st.xmom[id, v2])
U_n.append(p2_st.xvel[id, v2])
#print id, numpy.max(H[i]), numpy.min(H[i])
#print id, numpy.max(U[i]), numpy.min(U[i])
#print id, numpy.max(U_n[i]), numpy.min(U_n[i])
#Test stages
# Calculate L^1 error at times
ew = numpy.zeros(n)
for i, id in enumerate(ids):
ew[i] = numpy.sum(numpy.abs(W_n[i] - W[i])) / numpy.sum(
numpy.abs(W[i]))
print
print indent + 'L^1 Errors in stage: ', ew
#Test xmomenta
# Calculate L^1 error at times
euh = numpy.zeros(n)
for i, id in enumerate(ids):
if use_absolute[i]:
euh[i] = numpy.sum(numpy.abs(UH_n[i] - U[i] * H[i])) / len(
U[i])
else:
euh[i] = numpy.sum(
numpy.abs(UH_n[i] - U[i] * H[i])) / numpy.sum(
numpy.abs(UH_n[i]))
print indent + 'L^1 Errors in xmomentum: ', euh
#Test xvelocity
# Calculate L^1 error at times
eu = numpy.zeros(n)
for i, id in enumerate(ids):
if use_absolute[i]:
eu[i] = numpy.sum(numpy.abs(U_n[i] - U[i])) / len(U[i])
else:
eu[i] = numpy.sum(numpy.abs(U_n[i] - U[i])) / numpy.sum(
numpy.abs(U[i]))
print indent + 'L^1 Errors in xvelocity: ', eu
for i, id in enumerate(ids):
assert ew[i] < 0.01, 'L^1 error %g greater than 1 percent' % ew[i]
for i, id in enumerate(ids):
assert euh[
i] < 0.025, 'L^1 error %g greater than 2.5 percent' % euh[i]
for i, id in enumerate(ids):
assert eu[i] < 0.1, 'L^1 error %g greater than 10 percent' % eu[i]
def run_simulation(parallel=False, verbose=False):
#--------------------------------------------------------------------------
# Setup computational domain and quantities
#--------------------------------------------------------------------------
if myid == 0:
anuga.create_mesh_from_regions(boundaryPolygon,
boundary_tags={'left': [0],
'top': [1],
'right': [2],
'bottom': [3]},
maximum_triangle_area = 1.0e+20,
minimum_triangle_angle = 28.0,
filename = 'runup.msh',
interior_regions = [ [higherResPolygon, 1.*1.*0.5],
[midResPolygon, 3.0*3.0*0.5]],
breaklines=riverWall.values(),
use_cache=False,
verbose=verbose,
regionPtArea=regionPtAreas)
sdomain=anuga.create_domain_from_file('runup.msh')
sdomain.set_flow_algorithm(alg)
sdomain.set_name('s_riverwall')
sdomain.set_datadir('.')
sdomain.set_store_vertices_uniquely()
#------------------
# Define topography
#------------------
def topography(x,y):
return -x/150.*scale_me
def stagefun(x,y):
stg=-0.5*scale_me
return stg
sdomain.set_quantity('elevation',topography) # Use function for elevation
sdomain.set_quantity('friction',0.03) # Constant friction
sdomain.set_quantity('stage', stagefun) # Constant negative initial stage
else:
sdomain = None
#--------------------------------------------------------------------------
# Create the parallel domains
#--------------------------------------------------------------------------
if parallel:
if myid == 0 and verbose : print 'DISTRIBUTING TO PARALLEL DOMAIN'
pdomain = distribute(sdomain, verbose=verbose)
pdomain.set_name('p_riverwall')
pdomain.set_store_vertices_uniquely()
if myid == 0 and verbose:
print 60*'='
print 'EVOLVING pdomain'
print 60*'='
setup_and_evolve(pdomain, verbose=verbose)
barrier()
if myid == 0:
if verbose:
print 60*'='
print 'EVOLVING sdomain'
print 60*'='
setup_and_evolve(sdomain, verbose=verbose)
barrier()
#---------------------------------
# Now compare the merged sww files
#---------------------------------
if myid == 0:
if verbose: print 'COMPARING SWW FILES'
sdomain_v = util.get_output('s_riverwall.sww')
sdomain_c = util.get_centroids(sdomain_v)
pdomain_v = util.get_output('p_riverwall.sww')
pdomain_c = util.get_centroids(pdomain_v)
# Test some values against the original ordering
if verbose:
order = 0
print 'PDOMAIN CENTROID VALUES'
print num.linalg.norm(sdomain_c.x-pdomain_c.x,ord=order)
print num.linalg.norm(sdomain_c.y-pdomain_c.y,ord=order)
print num.linalg.norm(sdomain_c.stage[-1]-pdomain_c.stage[-1],ord=order)
print num.linalg.norm(sdomain_c.xmom[-1]-pdomain_c.xmom[-1],ord=order)
print num.linalg.norm(sdomain_c.ymom[-1]-pdomain_c.ymom[-1],ord=order)
print num.linalg.norm(sdomain_c.xvel[-1]-pdomain_c.xvel[-1],ord=order)
print num.linalg.norm(sdomain_c.yvel[-1]-pdomain_c.yvel[-1],ord=order)
assert num.allclose(sdomain_c.stage,pdomain_c.stage)
assert num.allclose(sdomain_c.xmom,pdomain_c.xmom)
assert num.allclose(sdomain_c.ymom,pdomain_c.ymom)
assert num.allclose(sdomain_c.xvel,pdomain_c.xvel)
assert num.allclose(sdomain_c.yvel,pdomain_c.yvel)
assert num.allclose(sdomain_v.x,pdomain_v.x)
assert num.allclose(sdomain_v.y,pdomain_v.y)
import os
os.remove('s_riverwall.sww')
os.remove('p_riverwall.sww')
os.remove('runup.msh')
def velExtrap_timeSlices_check(self, ve):
"""
Check that time-slices are behaving as expected. Assumes sww has been made
Is called by a test function for various flow algorithms
"""
p=util.get_output('test_plot_utils.sww')
p2=util.get_centroids(p,velocity_extrapolation=ve)
# Check that dimesions are ok
l_time=len(p.time)
l_space=len(p.x)
assert(p.timeSlices==range(l_time))
assert(p2.timeSlices==range(l_time))
# Try getting some time-slices, and checking all is as intended
p_12=util.get_output('test_plot_utils.sww', timeSlices=[0, 3])
pc_12=util.get_centroids(p_12,velocity_extrapolation=ve)
assert(p_12.timeSlices==[0,3])
assert(pc_12.timeSlices==[0,3])
self.everything_equal(p_12, 0, p, 0)
self.everything_equal(p_12, 1, p, 3)
self.everything_equal(pc_12, 0, p2, 0)
self.everything_equal(pc_12, 1, p2, 3)
# Try getting some time-slices, and checking all is as intended
p_12a=util.get_output('test_plot_utils.sww', timeSlices=3)
pc_12a=util.get_centroids(p_12a,velocity_extrapolation=ve)
#print p_12a.timeSlices
#print pc_12a.timeSlices
assert(p_12a.timeSlices==[3])
assert(pc_12a.timeSlices==[3])
self.everything_equal(p_12a, 0, p, 3)
self.everything_equal(pc_12a, 0, p2, 3)
# Try getting some time-slices, and checking all is as intended
p_12b=util.get_output('test_plot_utils.sww')
pc_12b=util.get_centroids(p_12b,velocity_extrapolation=ve, timeSlices=3)
#print p_12b.timeSlices
#print pc_12b.timeSlices
assert(p_12b.timeSlices==[0, 1, 2, 3, 4, 5])
assert(pc_12b.timeSlices==[3])
self.everything_equal(p_12b, 0, p, 0)
self.everything_equal(p_12b, 5, p, 5)
self.everything_equal(pc_12b, 0, p2, 3)
# Check we can get the 'last' time, and it is correct
p_l=util.get_output('test_plot_utils.sww', timeSlices='last')
pc_l=util.get_centroids(p_l,velocity_extrapolation=ve)
l_time=len(p.time)
self.everything_equal(p_l, 0, p, l_time-1)
self.everything_equal(pc_l, 0, p2, l_time-1)
assert(p_l.timeSlices==[l_time-1])
assert(pc_l.timeSlices==[l_time-1])
# Check that we can get the 'max' time
p_m=util.get_output('test_plot_utils.sww', timeSlices='max')
pc_m=util.get_centroids(p_m,velocity_extrapolation=ve)
assert(p_m.time==p.time.max())
assert(pc_m.time==p2.time.max())
assert(p_m.timeSlices=='max')
assert(pc_m.timeSlices=='max')
assert(all(p_m.stage[0,:]==p.stage.max(axis=0)))
assert(all(pc_m.stage[0,:]==p2.stage.max(axis=0)))
assert(all(p_m.vel[0,:]==p.vel.max(axis=0)))
assert(all(pc_m.vel[0,:]==p2.vel.max(axis=0)))
assert(all(p_m.height[0,:]==p.height.max(axis=0)))
assert(all(pc_m.height[0,:]==p2.height.max(axis=0)))
# Somewhat lazy test of variables where the sign is important
assert(all(np.abs(p_m.xmom)[0,:]==np.abs(p.xmom).max(axis=0)))
assert(all(np.abs(pc_m.xmom)[0,:]==np.abs(p2.xmom).max(axis=0)))
assert(all(np.abs(p_m.ymom)[0,:]==np.abs(p.ymom).max(axis=0)))
assert(all(np.abs(pc_m.ymom)[0,:]==np.abs(p2.ymom).max(axis=0)))
assert(all(np.abs(p_m.xvel)[0,:]==np.abs(p.xvel).max(axis=0)))
assert(all(np.abs(pc_m.xvel)[0,:]==np.abs(p2.xvel).max(axis=0)))
assert(all(np.abs(p_m.yvel)[0,:]==np.abs(p.yvel).max(axis=0)))
assert(all(np.abs(pc_m.yvel)[0,:]==np.abs(p2.yvel).max(axis=0)))
return
def run_simulation(parallel=False, verbose=False):
#--------------------------------------------------------------------------
# Setup computational domain and quantities
#--------------------------------------------------------------------------
if myid == 0:
anuga.create_mesh_from_regions(
boundaryPolygon,
boundary_tags={
'left': [0],
'top': [1],
'right': [2],
'bottom': [3]
},
maximum_triangle_area=1.0e+20,
minimum_triangle_angle=28.0,
filename='runup.msh',
interior_regions=[[higherResPolygon, 1. * 1. * 0.5],
[midResPolygon, 3.0 * 3.0 * 0.5]],
breaklines=list(riverWall.values()),
use_cache=False,
verbose=verbose,
regionPtArea=regionPtAreas)
sdomain = anuga.create_domain_from_file('runup.msh')
sdomain.set_flow_algorithm(alg)
sdomain.set_name('s_riverwall')
sdomain.set_datadir('.')
sdomain.set_store_vertices_uniquely()
#------------------
# Define topography
#------------------
def topography(x, y):
return -x / 150. * scale_me
def stagefun(x, y):
stg = -0.5 * scale_me
return stg
sdomain.set_quantity('elevation',
topography) # Use function for elevation
sdomain.set_quantity('friction', 0.03) # Constant friction
sdomain.set_quantity('stage',
stagefun) # Constant negative initial stage
else:
sdomain = None
#--------------------------------------------------------------------------
# Create the parallel domains
#--------------------------------------------------------------------------
if parallel:
if myid == 0 and verbose: print('DISTRIBUTING TO PARALLEL DOMAIN')
pdomain = distribute(sdomain, verbose=verbose)
pdomain.set_name('p_riverwall')
pdomain.set_store_vertices_uniquely()
if myid == 0 and verbose:
print(60 * '=')
print('EVOLVING pdomain')
print(60 * '=')
setup_and_evolve(pdomain, verbose=verbose)
barrier()
if myid == 0:
if verbose:
print(60 * '=')
print('EVOLVING sdomain')
print(60 * '=')
setup_and_evolve(sdomain, verbose=verbose)
barrier()
#---------------------------------
# Now compare the merged sww files
#---------------------------------
if myid == 0:
if verbose: print('COMPARING SWW FILES')
sdomain_v = util.get_output('s_riverwall.sww')
sdomain_c = util.get_centroids(sdomain_v)
pdomain_v = util.get_output('p_riverwall.sww')
pdomain_c = util.get_centroids(pdomain_v)
# Test some values against the original ordering
if verbose:
order = 0
print('PDOMAIN CENTROID VALUES')
print(num.linalg.norm(sdomain_c.x - pdomain_c.x, ord=order))
print(num.linalg.norm(sdomain_c.y - pdomain_c.y, ord=order))
print(
num.linalg.norm(sdomain_c.stage[-1] - pdomain_c.stage[-1],
ord=order))
print(
num.linalg.norm(sdomain_c.xmom[-1] - pdomain_c.xmom[-1],
ord=order))
print(
num.linalg.norm(sdomain_c.ymom[-1] - pdomain_c.ymom[-1],
ord=order))
print(
num.linalg.norm(sdomain_c.xvel[-1] - pdomain_c.xvel[-1],
ord=order))
print(
num.linalg.norm(sdomain_c.yvel[-1] - pdomain_c.yvel[-1],
ord=order))
assert num.allclose(sdomain_c.stage, pdomain_c.stage)
assert num.allclose(sdomain_c.xmom, pdomain_c.xmom)
assert num.allclose(sdomain_c.ymom, pdomain_c.ymom)
assert num.allclose(sdomain_c.xvel, pdomain_c.xvel)
assert num.allclose(sdomain_c.yvel, pdomain_c.yvel)
assert num.allclose(sdomain_v.x, pdomain_v.x)
assert num.allclose(sdomain_v.y, pdomain_v.y)
import os
os.remove('s_riverwall.sww')
os.remove('p_riverwall.sww')
os.remove('runup.msh')
def quickPlots(swwFile=None, ocean_land_threshold=None, fig_dir=None, figScale=None):
"""
Routine to make a set of 'quick and dirty' plots of initial conditions + maxima.
Useful for preliminary check on ANUGA outputs
"""
if(swwFile is None):
parser.print_help()
print ' '
raise Exception, 'Must give an sww file'
# Make directory for figures
try:
os.mkdir(fig_dir)
except:
'Cannot make directory'
pass
# Read in sww file
p=util.get_output(swwFile)
p2=util.get_centroids(p,velocity_extrapolation=True)
xRange=p2.x.max()-p2.x.min()
yRange=p2.y.max()-p2.y.min()
figSize=(figScale, figScale*yRange/xRange)
# Use spatial coordinates
x=p2.x+p.xllcorner
y=p2.y+p.yllcorner
# Plot friction
try:
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=p2.friction,edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Friction')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Friction.png')
pyplot.close()
except:
print 'Cannot plot friction'
# Plot elevation
try:
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=p2.elev,edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Elevation')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Elevation.png')
pyplot.close()
except:
print 'Cannot plot elevation'
# Plot Initial Stage (where elevation<ocean_land_threshold)
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=p2.stage[0,:]*(p2.elev<ocean_land_threshold),edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Initial Stage (zero where elevation > '+ str(ocean_land_threshold) +' )')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Initial_stage.png')
pyplot.close()
# Plot Initial Depth
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=p2.height[0,:],edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Initial Depth')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Initial_depth.png')
pyplot.close()
# Initial Speed
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=p2.vel[0,:],edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Initial speed ')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Initial_speed.png')
pyplot.close()
# Triangle areas
triA=util.triangle_areas(p)
tri_len_scale=(triA*2)**0.5
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=tri_len_scale,edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Mesh triangle side length scale (2*area)^0.5')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Triangle_side_length.png')
pyplot.close()
# Max stage in wet areas
maxStage=p2.stage.max(axis=0)
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=maxStage*(maxStage>p2.elev), edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Max stage (zeroed in dry areas)')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Max_stage.png')
pyplot.close()
# Max depth
maxDepth=p2.height.max(axis=0)
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=maxDepth, edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Max depth')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Max_depth.png')
pyplot.close()
# Max speed in wet areas
maxSpeed=p2.vel.max(axis=0)
pyplot.figure(figsize=figSize)
pyplot.scatter(x,y,c=maxSpeed, edgecolors='none')
pyplot.gca().set_aspect('equal')
pyplot.title('Max speed')
pyplot.colorbar()
pyplot.savefig(fig_dir+'/Max_speed.png')
pyplot.close()
import numpy
from anuga.utilities import plot_utils as util
import matplotlib
matplotlib.use('Agg')
from matplotlib import pyplot as pyplot
######################################################
# Get ANUGA
p = util.get_output('channel_floodplain1.sww', 0.001)
pc=util.get_centroids(p, velocity_extrapolation=True)
# Indices in the central channel areas
v = (pc.x>10.0)*(pc.x<30.0)
######################################################
# Get hecras info
rasFile='hecras_tides_case/gauges.csv'
rasGauges=numpy.genfromtxt(rasFile,skip_header=3,delimiter=",")
# Output at 1 minute intervals
rasTime=numpy.linspace(0., 60.*(rasGauges.shape[0]-1), rasGauges.shape[0])
# Get station information for hecras
rasFileO=open(rasFile)
rasStations=rasFileO.readline().split(',')
rasStations[-1]=rasStations[-1].replace('\r\n','')
rasFileO.close()
######################################################
def get_corresponding_series(reach, station):
def test_avalanche_wet(self):
if verbose:
print
print indent + "Running simulation script"
s = "numerical_avalanche_wet.py"
res = anuga.run_anuga_script(s, args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent + "Testing accuracy"
import anuga.utilities.plot_utils as util
from analytical_avalanche_wet import analytical_sol
p_st = util.get_output("avalanche.sww")
p2_st = util.get_centroids(p_st)
v = p2_st.y[20]
v2 = p2_st.y == v
x_n = p2_st.x[v2]
u0, h0, w0, z0, p0 = analytical_sol(x_n, p2_st.time[0])
u20, h20, w20, z20, p20 = analytical_sol(x_n, p2_st.time[20])
u40, h40, w40, z40, p40 = analytical_sol(x_n, p2_st.time[40])
w0_n = p2_st.stage[0, v2]
w20_n = p2_st.stage[20, v2]
w40_n = p2_st.stage[40, v2]
z_n = p2_st.elev[v2]
uh0_n = p2_st.xmom[0, v2]
uh20_n = p2_st.xmom[20, v2]
uh40_n = p2_st.xmom[40, v2]
u0_n = p2_st.xvel[0, v2]
u20_n = p2_st.xvel[20, v2]
u40_n = p2_st.xvel[40, v2]
# Test stages
# Calculate L^1 error at times corrsponding to slices 20, 40
eh20 = numpy.sum(numpy.abs(w20_n - w20)) / numpy.sum(numpy.abs(w20))
eh40 = numpy.sum(numpy.abs(w40_n - w40)) / numpy.sum(numpy.abs(w40))
print
print indent + "Errors in stage: ", eh20, eh40
# Test xmomenta
# Calculate L^1 error at times corrsponding to slices 20, 40
euh20 = numpy.sum(numpy.abs(uh20_n - u20 * h20)) / numpy.sum(numpy.abs(u20 * h20))
euh40 = numpy.sum(numpy.abs(uh40_n - u40 * h40)) / numpy.sum(numpy.abs(u40 * h40))
print indent + "Errors in xmomentum: ", euh20, euh40
# Test xvelocity
# Calculate L^1 error at times corrsponding to slices 20, 40
eu20 = numpy.sum(numpy.abs(u20_n - u20)) / numpy.sum(numpy.abs(u20))
eu40 = numpy.sum(numpy.abs(u40_n - u40)) / numpy.sum(numpy.abs(u40))
print indent + "Errors in xvelocity: ", eu20, eu40
assert eh20 < 0.01, "L^1 error %g greater than 1 percent" % eh20
assert eh40 < 0.01, "L^1 error %g greater than 1 percent" % eh40
assert euh20 < 0.025, "L^1 error %g greater than 2.5 percent" % euh20
assert euh40 < 0.025, "L^1 error %g greater than 2.5 percent" % euh40
assert eu20 < 0.02, "L^1 error %g greater than 2 percent" % eu20
assert eu40 < 0.01, "L^1 error %g greater than 2 percent" % eu40
def velExtrap_timeSlices_check(self, ve):
"""
Check that time-slices are behaving as expected. Assumes sww has been made
Is called by a test function for various flow algorithms
"""
p = util.get_output('test_plot_utils.sww')
p2 = util.get_centroids(p, velocity_extrapolation=ve)
# Check that dimesions are ok
l_time = len(p.time)
l_space = len(p.x)
assert (p.timeSlices == range(l_time))
assert (p2.timeSlices == range(l_time))
# Try getting some time-slices, and checking all is as intended
p_12 = util.get_output('test_plot_utils.sww', timeSlices=[0, 3])
pc_12 = util.get_centroids(p_12, velocity_extrapolation=ve)
assert (p_12.timeSlices == [0, 3])
assert (pc_12.timeSlices == [0, 3])
self.everything_equal(p_12, 0, p, 0)
self.everything_equal(p_12, 1, p, 3)
self.everything_equal(pc_12, 0, p2, 0)
self.everything_equal(pc_12, 1, p2, 3)
# Try getting some time-slices, and checking all is as intended
p_12a = util.get_output('test_plot_utils.sww', timeSlices=3)
pc_12a = util.get_centroids(p_12a, velocity_extrapolation=ve)
#print p_12a.timeSlices
#print pc_12a.timeSlices
assert (p_12a.timeSlices == [3])
assert (pc_12a.timeSlices == [3])
self.everything_equal(p_12a, 0, p, 3)
self.everything_equal(pc_12a, 0, p2, 3)
# Try getting some time-slices, and checking all is as intended
p_12b = util.get_output('test_plot_utils.sww')
pc_12b = util.get_centroids(p_12b,
velocity_extrapolation=ve,
timeSlices=3)
#print p_12b.timeSlices
#print pc_12b.timeSlices
assert (p_12b.timeSlices == [0, 1, 2, 3, 4, 5])
assert (pc_12b.timeSlices == [3])
self.everything_equal(p_12b, 0, p, 0)
self.everything_equal(p_12b, 5, p, 5)
self.everything_equal(pc_12b, 0, p2, 3)
# Check we can get the 'last' time, and it is correct
p_l = util.get_output('test_plot_utils.sww', timeSlices='last')
pc_l = util.get_centroids(p_l, velocity_extrapolation=ve)
l_time = len(p.time)
self.everything_equal(p_l, 0, p, l_time - 1)
self.everything_equal(pc_l, 0, p2, l_time - 1)
assert (p_l.timeSlices == [l_time - 1])
assert (pc_l.timeSlices == [l_time - 1])
# Check that we can get the 'max' time
p_m = util.get_output('test_plot_utils.sww', timeSlices='max')
pc_m = util.get_centroids(p_m, velocity_extrapolation=ve)
assert (p_m.time == p.time.max())
assert (pc_m.time == p2.time.max())
assert (p_m.timeSlices == 'max')
assert (pc_m.timeSlices == 'max')
assert (all(p_m.stage[0, :] == p.stage.max(axis=0)))
assert (all(pc_m.stage[0, :] == p2.stage.max(axis=0)))
assert (all(p_m.vel[0, :] == p.vel.max(axis=0)))
assert (all(pc_m.vel[0, :] == p2.vel.max(axis=0)))
assert (all(p_m.height[0, :] == p.height.max(axis=0)))
assert (all(pc_m.height[0, :] == p2.height.max(axis=0)))
# Somewhat lazy test of variables where the sign is important
assert (all(np.abs(p_m.xmom)[0, :] == np.abs(p.xmom).max(axis=0)))
assert (all(np.abs(pc_m.xmom)[0, :] == np.abs(p2.xmom).max(axis=0)))
assert (all(np.abs(p_m.ymom)[0, :] == np.abs(p.ymom).max(axis=0)))
assert (all(np.abs(pc_m.ymom)[0, :] == np.abs(p2.ymom).max(axis=0)))
assert (all(np.abs(p_m.xvel)[0, :] == np.abs(p.xvel).max(axis=0)))
assert (all(np.abs(pc_m.xvel)[0, :] == np.abs(p2.xvel).max(axis=0)))
assert (all(np.abs(p_m.yvel)[0, :] == np.abs(p.yvel).max(axis=0)))
assert (all(np.abs(pc_m.yvel)[0, :] == np.abs(p2.yvel).max(axis=0)))
return
from anuga.utilities import plot_utils as util
from matplotlib import pyplot as pyplot
import numpy
verbose = True
swwfile = 'merewether_1m.sww'
p = util.get_output(swwfile)
p2 = util.get_centroids(p)
# Time index at last time
tindex = len(p2.time) - 1
if verbose: print('calculating experimental transect')
x_data = [0.0, 3.0, 6.0, 9.0, 12.0, 15.0, 18.0, 21.0, 24.0, 27.0, 30.0, 33.0]
#vel = [ 0.0, 0.0, 1.1, 3.2, 3.4, 2.4, 3.2, 3.2, 3.7, 3.1, 0.4, 0.0]
vel_data = [0.0, 0.4, 3.1, 3.7, 3.2, 3.2, 2.4, 3.4, 3.2, 1.1, 0.0, 0.0]
#depth = [ 0.0, 0.0, 0.1, 0.5, 0.45, 0.4, 0.55, 0.1, 0.1, 0.05, 0.04, 0.0]
depth_data = [0.0, 0.04, 0.05, 0.1, 0.1, 0.55, 0.4, 0.45, 0.5, 0.1, 0.0, 0.0]
from scipy import interpolate
fvel = interpolate.interp1d(x_data, vel_data)
fdepth = interpolate.interp1d(x_data, depth_data)
if verbose: print('calculating model heights at observation points')
# Get nearest wet points to 'point observations'
point_observations = numpy.genfromtxt('Observations/ObservationPoints.csv',
delimiter=",",
skip_header=1)
def test_avalanche_wet(self):
if verbose:
print
print indent + 'Running simulation script'
s = 'numerical_avalanche_wet.py'
res = anuga.run_anuga_script(s, args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent + 'Testing accuracy'
import anuga.utilities.plot_utils as util
from analytical_avalanche_wet import analytical_sol
p_st = util.get_output('avalanche.sww')
p2_st = util.get_centroids(p_st)
v = p2_st.y[20]
v2 = (p2_st.y == v)
x_n = p2_st.x[v2]
u0, h0, w0, z0, p0 = analytical_sol(x_n, p2_st.time[0])
u20, h20, w20, z20, p20 = analytical_sol(x_n, p2_st.time[20])
u40, h40, w40, z40, p40 = analytical_sol(x_n, p2_st.time[40])
w0_n = p2_st.stage[0, v2]
w20_n = p2_st.stage[20, v2]
w40_n = p2_st.stage[40, v2]
z_n = p2_st.elev[v2]
uh0_n = p2_st.xmom[0, v2]
uh20_n = p2_st.xmom[20, v2]
uh40_n = p2_st.xmom[40, v2]
u0_n = p2_st.xvel[0, v2]
u20_n = p2_st.xvel[20, v2]
u40_n = p2_st.xvel[40, v2]
#Test stages
# Calculate L^1 error at times corrsponding to slices 20, 40
eh20 = numpy.sum(numpy.abs(w20_n - w20)) / numpy.sum(numpy.abs(w20))
eh40 = numpy.sum(numpy.abs(w40_n - w40)) / numpy.sum(numpy.abs(w40))
print
print indent + 'Errors in stage: ', eh20, eh40
#Test xmomenta
# Calculate L^1 error at times corrsponding to slices 20, 40
euh20 = numpy.sum(numpy.abs(uh20_n - u20 * h20)) / numpy.sum(
numpy.abs(u20 * h20))
euh40 = numpy.sum(numpy.abs(uh40_n - u40 * h40)) / numpy.sum(
numpy.abs(u40 * h40))
print indent + 'Errors in xmomentum: ', euh20, euh40
#Test xvelocity
# Calculate L^1 error at times corrsponding to slices 20, 40
eu20 = numpy.sum(numpy.abs(u20_n - u20)) / numpy.sum(numpy.abs(u20))
eu40 = numpy.sum(numpy.abs(u40_n - u40)) / numpy.sum(numpy.abs(u40))
print indent + 'Errors in xvelocity: ', eu20, eu40
assert eh20 < 0.01, 'L^1 error %g greater than 1 percent' % eh20
assert eh40 < 0.01, 'L^1 error %g greater than 1 percent' % eh40
assert euh20 < 0.025, 'L^1 error %g greater than 2.5 percent' % euh20
assert euh40 < 0.025, 'L^1 error %g greater than 2.5 percent' % euh40
assert eu20 < 0.02, 'L^1 error %g greater than 2 percent' % eu20
assert eu40 < 0.01, 'L^1 error %g greater than 2 percent' % eu40
def run_simulation(parallel=False, verbose=False):
#--------------------------------------------------------------------------
# Setup computational domain and quantities
#--------------------------------------------------------------------------
if myid == 0:
domain = rectangular_cross_domain(M, N)
domain.set_name('odomain') # Set sww filename
domain.set_datadir('.')
domain.set_quantity('elevation', topography) # Use function for elevation
domain.set_quantity('friction', 0.0) # Constant friction
domain.set_quantity('stage', expression='elevation') # Dry initial stage
else:
domain = None
#--------------------------------------------------------------------------
# Create pickled partition
#--------------------------------------------------------------------------
if myid == 0:
if verbose: print 'DUMPING PARTITION DATA'
sequential_distribute_dump(domain, numprocs, verbose=verbose, parameters=new_parameters)
#--------------------------------------------------------------------------
# Create the parallel domains
#--------------------------------------------------------------------------
if parallel:
if myid == 0 and verbose : print 'DISTRIBUTING TO PARALLEL DOMAIN'
pdomain = distribute(domain, verbose=verbose, parameters=new_parameters)
pdomain.set_name('pdomain')
if myid == 0 and verbose : print 'LOADING IN PARALLEL DOMAIN'
sdomain = sequential_distribute_load(filename='odomain', verbose = verbose)
sdomain.set_name('sdomain')
if myid == 0 and verbose: print 'EVOLVING pdomain'
setup_and_evolve(pdomain, verbose=verbose)
if myid == 0 and verbose: print 'EVOLVING sdomain'
setup_and_evolve(sdomain, verbose=verbose)
if myid == 0:
if verbose: print 'EVOLVING odomain'
setup_and_evolve(domain, verbose=verbose)
if myid == 0 and verbose:
parameter_file=open('odomain.txt', 'w')
from pprint import pprint
pprint(domain.get_algorithm_parameters(),parameter_file,indent=4)
parameter_file.close()
parameter_file=open('sdomain.txt', 'w')
from pprint import pprint
pprint(sdomain.get_algorithm_parameters(),parameter_file,indent=4)
parameter_file.close()
parameter_file=open('pdomain.txt', 'w')
from pprint import pprint
pprint(pdomain.get_algorithm_parameters(),parameter_file,indent=4)
parameter_file.close()
assert num.allclose(pdomain.quantities['stage'].centroid_values, sdomain.quantities['stage'].centroid_values)
assert num.allclose(pdomain.quantities['stage'].vertex_values, sdomain.quantities['stage'].vertex_values)
assert num.allclose(pdomain.vertex_coordinates, sdomain.vertex_coordinates)
assert num.allclose(pdomain.centroid_coordinates, sdomain.centroid_coordinates)
#---------------------------------
# Now compare the merged sww files
#---------------------------------
if myid == 0:
if verbose: print 'COMPARING SWW FILES'
odomain_v = util.get_output('odomain.sww')
odomain_c = util.get_centroids(odomain_v)
pdomain_v = util.get_output('pdomain.sww')
pdomain_c = util.get_centroids(pdomain_v)
sdomain_v = util.get_output('sdomain.sww')
sdomain_c = util.get_centroids(sdomain_v)
# Test some values against the original ordering
if verbose:
order = 2
print 'PDOMAIN CENTROID VALUES'
print num.linalg.norm(odomain_c.x-pdomain_c.x,ord=order)
print num.linalg.norm(odomain_c.y-pdomain_c.y,ord=order)
print num.linalg.norm(odomain_c.stage[-1]-pdomain_c.stage[-1],ord=order)
print num.linalg.norm(odomain_c.xmom[-1]-pdomain_c.xmom[-1],ord=order)
print num.linalg.norm(odomain_c.ymom[-1]-pdomain_c.ymom[-1],ord=order)
print num.linalg.norm(odomain_c.xvel[-1]-pdomain_c.xvel[-1],ord=order)
print num.linalg.norm(odomain_c.yvel[-1]-pdomain_c.yvel[-1],ord=order)
print 'SDOMAIN CENTROID VALUES'
print num.linalg.norm(odomain_c.x-sdomain_c.x,ord=order)
print num.linalg.norm(odomain_c.y-sdomain_c.y,ord=order)
print num.linalg.norm(odomain_c.stage[-1]-sdomain_c.stage[-1],ord=order)
print num.linalg.norm(odomain_c.xmom[-1]-sdomain_c.xmom[-1],ord=order)
print num.linalg.norm(odomain_c.ymom[-1]-sdomain_c.ymom[-1],ord=order)
print num.linalg.norm(odomain_c.xvel[-1]-sdomain_c.xvel[-1],ord=order)
print num.linalg.norm(odomain_c.yvel[-1]-sdomain_c.yvel[-1],ord=order)
print 'PDOMAIN VERTEX VALUES'
print num.linalg.norm(odomain_v.stage[-1]-pdomain_v.stage[-1],ord=order)
print num.linalg.norm(odomain_v.xmom[-1]-pdomain_v.xmom[-1],ord=order)
print num.linalg.norm(odomain_v.ymom[-1]-pdomain_v.ymom[-1],ord=order)
print num.linalg.norm(odomain_v.xvel[-1]-pdomain_v.xvel[-1],ord=order)
print num.linalg.norm(odomain_v.yvel[-1]-pdomain_v.yvel[-1],ord=order)
print 'SDOMAIN VERTEX VALUES'
print num.linalg.norm(odomain_v.stage[-1]-sdomain_v.stage[-1],ord=order)
print num.linalg.norm(odomain_v.xmom[-1]-sdomain_v.xmom[-1],ord=order)
print num.linalg.norm(odomain_v.ymom[-1]-sdomain_v.ymom[-1],ord=order)
print num.linalg.norm(odomain_v.xvel[-1]-sdomain_v.xvel[-1],ord=order)
print num.linalg.norm(odomain_v.yvel[-1]-sdomain_v.yvel[-1],ord=order)
assert num.allclose(odomain_c.stage,pdomain_c.stage)
assert num.allclose(odomain_c.xmom,pdomain_c.xmom)
assert num.allclose(odomain_c.ymom,pdomain_c.ymom)
assert num.allclose(odomain_c.xvel,pdomain_c.xvel)
assert num.allclose(odomain_c.yvel,pdomain_c.yvel)
assert num.allclose(odomain_v.x,pdomain_v.x)
assert num.allclose(odomain_v.y,pdomain_v.y)
assert num.linalg.norm(odomain_v.x-pdomain_v.x,ord=0) == 0
assert num.linalg.norm(odomain_v.y-pdomain_v.y,ord=0) == 0
assert num.linalg.norm(odomain_v.stage[-1]-pdomain_v.stage[-1],ord=0) < 100
assert num.linalg.norm(odomain_v.xmom[-1]-pdomain_v.xmom[-1],ord=0) < 100
assert num.linalg.norm(odomain_v.ymom[-1]-pdomain_v.ymom[-1],ord=0) < 100
assert num.linalg.norm(odomain_v.xvel[-1]-pdomain_v.xvel[-1],ord=0) < 100
assert num.linalg.norm(odomain_v.yvel[-1]-pdomain_v.yvel[-1],ord=0) < 100
assert num.allclose(odomain_c.x,sdomain_c.x)
assert num.allclose(odomain_c.y,sdomain_c.y)
assert num.allclose(odomain_c.stage,sdomain_c.stage)
assert num.allclose(odomain_c.xmom,sdomain_c.xmom)
assert num.allclose(odomain_c.ymom,sdomain_c.ymom)
assert num.allclose(odomain_c.xvel,sdomain_c.xvel)
assert num.allclose(odomain_c.yvel,sdomain_c.yvel)
assert num.allclose(odomain_v.x,sdomain_v.x)
assert num.allclose(odomain_v.y,sdomain_v.y)
order = 0
assert num.linalg.norm(odomain_v.x-sdomain_v.x,ord=order) == 0
assert num.linalg.norm(odomain_v.y-sdomain_v.y,ord=order) == 0
assert num.linalg.norm(odomain_v.stage[-1]-sdomain_v.stage[-1],ord=order) < 100
assert num.linalg.norm(odomain_v.xmom[-1]-sdomain_v.xmom[-1],ord=order) < 100
assert num.linalg.norm(odomain_v.ymom[-1]-sdomain_v.ymom[-1],ord=order) < 100
assert num.linalg.norm(odomain_v.xvel[-1]-sdomain_v.xvel[-1],ord=order) < 100
assert num.linalg.norm(odomain_v.yvel[-1]-sdomain_v.yvel[-1],ord=order) < 100
# COMPARE CENTROID PDOMAIN SDOMAIN
assert num.allclose(pdomain_c.x,sdomain_c.x)
assert num.allclose(pdomain_c.y,sdomain_c.y)
assert num.allclose(pdomain_c.stage[-1],sdomain_c.stage[-1])
assert num.allclose(pdomain_c.xmom[-1],sdomain_c.xmom[-1])
assert num.allclose(pdomain_c.ymom[-1],sdomain_c.ymom[-1])
assert num.allclose(pdomain_c.xvel[-1],sdomain_c.xvel[-1])
assert num.allclose(pdomain_c.yvel[-1],sdomain_c.yvel[-1])
# COMPARE VERTEX PDOMAIN SDOMAIN
assert num.allclose(pdomain_v.x,sdomain_v.x)
assert num.allclose(pdomain_v.y,sdomain_v.y)
assert num.allclose(pdomain_v.stage[-1],sdomain_v.stage[-1])
assert num.allclose(pdomain_v.xmom[-1],sdomain_v.xmom[-1])
assert num.allclose(pdomain_v.ymom[-1],sdomain_v.ymom[-1])
assert num.allclose(pdomain_v.xvel[-1],sdomain_v.xvel[-1])
assert num.allclose(pdomain_v.yvel[-1],sdomain_v.yvel[-1])
import os
os.remove('odomain.sww')
os.remove('pdomain.sww')
os.remove('sdomain.sww')
os.remove('odomain_P4_0.pickle')
os.remove('odomain_P4_1.pickle')
os.remove('odomain_P4_2.pickle')
os.remove('odomain_P4_3.pickle')
import numpy
from anuga.utilities import plot_utils as util
import matplotlib
matplotlib.use('Agg')
from matplotlib import pyplot as pyplot
######################################################
# Get ANUGA
p = util.get_output('channel_floodplain1.sww', 0.001)
pc = util.get_centroids(p, velocity_extrapolation=True)
# Indices in the central channel areas
v = (pc.x > 10.0) * (pc.x < 30.0)
######################################################
# Get hecras info
rasFile = 'hecras_tides_case/gauges.csv'
rasGauges = numpy.genfromtxt(rasFile, skip_header=3, delimiter=",")
# Output at 1 minute intervals
rasTime = numpy.linspace(0., 60. * (rasGauges.shape[0] - 1),
rasGauges.shape[0])
# Get station information for hecras
rasFileO = open(rasFile)
rasStations = rasFileO.readline().split(',')
rasStations[-1] = rasStations[-1].replace('\r\n', '')
rasFileO.close()
######################################################
def test_dam_break_dry(self):
if verbose:
print
print indent+'Running simulation script'
s = 'numerical_dam_break_dry.py'
res = anuga.run_anuga_script(s,args=args)
# Test that script runs ok
assert res == 0
if verbose:
print indent+'Testing accuracy'
import anuga.utilities.plot_utils as util
import analytical_dam_break_dry as analytic
p_st = util.get_output('dam_break.sww')
p2_st=util.get_centroids(p_st)
v = p2_st.y[10]
v2=(p2_st.y==v)
h0 = 1.0
h1 = 10.0
# calculate analytic values at various time slices
h10,u10 = analytic.vec_dam_break(p2_st.x[v2], p2_st.time[10], h0=h0, h1=h1)
h50,u50 = analytic.vec_dam_break(p2_st.x[v2], p2_st.time[50], h0=h0, h1=h1)
h100,u100 = analytic.vec_dam_break(p2_st.x[v2], p2_st.time[100], h0=h0, h1=h1)
#Test stages
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eh10 = numpy.sum(numpy.abs(p2_st.stage[10,v2]-h10))/numpy.sum(numpy.abs(h10))
eh50 = numpy.sum(numpy.abs(p2_st.stage[50,v2]-h50))/numpy.sum(numpy.abs(h50))
eh100 = numpy.sum(numpy.abs(p2_st.stage[100,v2]-h100))/numpy.sum(numpy.abs(h100))
print
print indent+'Errors in stage: ',eh10, eh50, eh100
#Test xmomenta
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
euh10 = numpy.sum(numpy.abs(p2_st.xmom[10,v2]-u10*h10))/numpy.sum(numpy.abs(u10*h10))
euh50 = numpy.sum(numpy.abs(p2_st.xmom[50,v2]-u50*h50))/numpy.sum(numpy.abs(u50*h50))
euh100 = numpy.sum(numpy.abs(p2_st.xmom[100,v2]-u100*h100))/numpy.sum(numpy.abs(u100*h100))
print indent+'Errors in xmomentum: ',euh10, euh50, euh100
#Test xvelocity
# Calculate L^1 error at times corrsponding to slices 10, 50 and 100
eu10 = numpy.sum(numpy.abs(p2_st.xvel[10,v2]-u10))/numpy.sum(numpy.abs(u10))
eu50 = numpy.sum(numpy.abs(p2_st.xvel[50,v2]-u50))/numpy.sum(numpy.abs(u50))
eu100 = numpy.sum(numpy.abs(p2_st.xvel[100,v2]-u100))/numpy.sum(numpy.abs(u100))
print indent+'Errors in xvelocity: ', eu10, eu50, eu100
assert eh10 < 0.1, 'Relative L^1 error %g greater than 0.1'% eh10
assert eh50 < 0.1, 'Relative L^1 error %g greater than 0.1'% eh50
assert eh100 < 0.15, 'Relative L^1 error %g greater than 0.15'% eh100
assert euh10 < 0.25, 'Relative L^1 error %g greater than 0.25'% euh10
assert euh50 < 0.25, 'Relative L^1 error %g greater than 0.25'% euh50
assert euh100 < 0.25, 'Relative L^1 error %g greater than 0.25'% euh100
assert eu10 < 2.0, 'Relative L^1 error %g greater than 2.0'% eu10
assert eu50 < 2.0, 'Relative L^1 error %g greater than 2.0'% eu50
assert eu100 < 0.3, 'Relative L^1 error %g greater than 0.3'% eu100
"""
Quick plot of the dam break outputs
"""
import anuga.utilities.plot_utils as util
import matplotlib
matplotlib.use('Agg')
from matplotlib import pyplot as pyplot
import analytical_dam_break_wet as analytic
import numpy
p_st = util.get_output('dam_break.sww')
p2_st = util.get_centroids(p_st)
v = p2_st.y[10]
v2 = numpy.argwhere(p2_st.y == v).flatten()
iv2 = numpy.argsort(p2_st.x[v2])
v2 = v2[iv2]
h0 = 1.0
h1 = 10.0
h10, u10 = analytic.vec_dam_break(p2_st.x[v2], p2_st.time[10], h0=h0, h1=h1)
h50, u50 = analytic.vec_dam_break(p2_st.x[v2], p2_st.time[50], h0=h0, h1=h1)
h100, u100 = analytic.vec_dam_break(p2_st.x[v2], p2_st.time[100], h0=h0, h1=h1)
#Plot stages
pyplot.clf()
pyplot.plot(p2_st.x[v2], p2_st.stage[10, v2], 'b.', label='numerical t=10')
pyplot.plot(p2_st.x[v2], p2_st.stage[50, v2], 'g.', label='numerical t=50')
pyplot.plot(p2_st.x[v2], p2_st.stage[100, v2], 'r.', label='numerical t=100')
"""
Quick plot of the dam break outputs
"""
import numpy
from numpy import zeros
import anuga.utilities.plot_utils as util
import matplotlib
matplotlib.use('Agg')
from matplotlib import pyplot as pyplot
from math import sqrt, pi, cos, sin
from analytical_parabolic_basin import analytic_cannal
# Get the sww file
p_st = util.get_output('parabola.sww')
p2_st = util.get_centroids(
p_st, velocity_extrapolation=True) #(p_st, velocity_extrapolation=True)
index_origin = 3978
v = p2_st.y[index_origin]
v2 = (p2_st.y == v)
# Compute the analytical solution
time_level = 200
u, h, w, z = analytic_cannal(p2_st.x[v2], p2_st.time[time_level])
#Plot stages
pyplot.clf()
pyplot.plot(p2_st.x[v2],
p2_st.stage[time_level, v2],
'b.',
label='numerical stage')
