mp.Volume(center=mp.Vector3(0, 1, 0),
size=mp.Vector3(x=2)),
mode=1)
ob_list = [TE0]
def J(alpha):
return npa.sum(npa.abs(alpha)**2)
#----------------------------------------------------------------------
#- Define optimization problem
#----------------------------------------------------------------------
opt = mpa.OptimizationProblem(simulation=sim,
objective_function=J,
objective_arguments=ob_list,
basis=bases,
fcen=fcen,
time=time)
#----------------------------------------------------------------------
#- Get gradient
#----------------------------------------------------------------------
f0, g_adjoint = opt()
#----------------------------------------------------------------------
#- FD run
#----------------------------------------------------------------------
db = 1e-3
n = Nx * Ny
choose = 20
#----------------------------------------------------------------------
TE0 = mpa.EigenmodeCoefficient(sim,mp.Volume(center=mp.Vector3(0,1,0),size=mp.Vector3(x=2)),mode=1)
ob_list = [TE0]
def J(alpha):
return npa.sum(npa.abs(alpha) ** 2)
#----------------------------------------------------------------------
#- Define optimization problem
#----------------------------------------------------------------------
opt = mpa.OptimizationProblem(
simulation = sim,
objective_function = J,
objective_arguments = ob_list,
basis = [basis],
fcen = fcen,
df = fwidth,
nf = nf,
time = time
)
#----------------------------------------------------------------------
#- Get gradient
#----------------------------------------------------------------------
f0, g_adjoint = opt()
#----------------------------------------------------------------------
#- FD run
#----------------------------------------------------------------------
db = 1e-3
# objective function and extra objective quantities -------------------
#----------------------------------------------------------------------
splitter = False
#fobj_router = '|P1_north/P1_west1|^2'
fobj_router = '|P1_east|^2'
fobj_splitter = '( |P1_north| - |P1_east| )^2 + ( |P1_east| - |M1_south| )^2'
objective_function = fobj_router
extra_quantities = ['S_north', 'S_south', 'S_east', 'S_west1', 'S_west2']
#----------------------------------------------------------------------
#----------------------------------------------------------------------
#----------------------------------------------------------------------
opt_prob = mpa.OptimizationProblem(sim,
objective_regions=objective_regions,
objective_function=objective_function,
basis=basis,
beta_vector=beta_vector,
design_function=design_function)
f, _ = opt_prob.get_fdf_funcs()
n = basis.dim
b0 = 9 * np.ones((n, ))
opt_prob.visualize(pmesh=True)
'''plt.savefig('design_region.png')
plt.show()
quit()'''
#----------------------------------------------------------------------
# -- Solve adjoint problem
#----------------------------------------------------------------------
f_adjoint, g_adjoint = opt_prob(b0)
#----------------------------------------------------------------------