Merge pull request #26 from simpeg/dev

merge FDEM refactor from dev
This commit is contained in:
Lindsey
2015-07-06 07:09:21 -05:00
29 changed files with 2088 additions and 1137 deletions
+7 -7
View File
@@ -19,9 +19,9 @@ model = Model.LogModel(mesh)
x = np.linspace(-10,10,5)
XYZ = Utils.ndgrid(x,np.r_[0],np.r_[0])
rxList = EM.FDEM.RxListFDEM(XYZ, 'Ex')
Tx0 = EM.FDEM.TxFDEM(np.r_[0.,0.,0.], 'VMD', 1e2, rxList)
Src0 = EM.FDEM.SrcFDEM(np.r_[0.,0.,0.], 'VMD', 1e2, rxList)
survey = EM.FDEM.SurveyFDEM([Tx0])
survey = EM.FDEM.SurveyFDEM([Src0])
prb = EM.FDEM.ProblemFDEM_b(model)
prb.pair(survey)
@@ -31,26 +31,26 @@ sigma = np.ones(mesh.nC)*sig
sigma[mesh.gridCC[:,2] > 0] = 1e-8
m = np.log(sigma)
skin = 500*np.sqrt(1/(sig*Tx0.freq))
skin = 500*np.sqrt(1/(sig*Src0.freq))
print 'The skin depth is: %4.2f m' % skin
prb.Solver = Utils.SolverUtils.DSolverWrap(sp.linalg.spsolve, factorize=False, checkAccuracy=True)
u = prb.fields(m)
plt.colorbar(mesh.plotImage(np.log10(np.abs(u[Tx0, 'b'].real)), 'Fz'))
plt.colorbar(mesh.plotImage(np.log10(np.abs(u[Src0, 'b'].real)), 'Fz'))
bfz = mesh.r(u[Tx0, 'b'],'F','Fz','M')
bfz = mesh.r(u[Src0, 'b'],'F','Fz','M')
x = np.linspace(-55,55,12)
XYZ = Utils.ndgrid(x,np.r_[0],np.r_[0])
P = mesh.getInterpolationMat(XYZ, 'Fz')
an = EM.Utils.Ana.FEM.hzAnalyticDipoleF(x, Tx0.freq, sig)
an = EM.Utils.Ana.FEM.hzAnalyticDipoleF(x, Src0.freq, sig)
plt.figure(2)
plt.plot(x,np.log10(np.abs(P*np.imag(u[Tx0, 'b']))))
plt.plot(x,np.log10(np.abs(P*np.imag(u[Src0, 'b']))))
plt.plot(x,np.log10(np.abs(mu_0*np.imag(an))), 'r')
plt.xlabel('Distance, m')
plt.ylabel('Log10 Response imag($B_z$)')
+65 -12
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@@ -5,7 +5,8 @@ from scipy.special import erf
import matplotlib.pyplot as plt
from SimPEG import Utils
def hzAnalyticDipoleF(r, freq, sigma, secondary=True):
def hzAnalyticDipoleF(r, freq, sigma, secondary=True, mu=mu_0):
"""
4.56 in Ward and Hohmann
@@ -25,7 +26,7 @@ def hzAnalyticDipoleF(r, freq, sigma, secondary=True):
"""
r = np.abs(r)
k = np.sqrt(-1j*2.*np.pi*freq*mu_0*sigma)
k = np.sqrt(-1j*2.*np.pi*freq*mu*sigma)
m = 1
front = m / (2. * np.pi * (k**2) * (r**5) )
@@ -34,11 +35,14 @@ def hzAnalyticDipoleF(r, freq, sigma, secondary=True):
if secondary:
hp =-1/(4*np.pi*r**3)
return hz-hp
hz = hz-hp
if hz.ndim == 1:
hz = Utils.mkvc(hz,2)
return hz
def AnalyticMagDipoleWholeSpace(XYZ, txLoc, sig, f, m=1., orientation='X'):
def AnalyticMagDipoleWholeSpace(XYZ, srcLoc, sig, f, moment=1., orientation='X', mu = mu_0):
"""
Analytical solution for a dipole in a whole-space.
@@ -67,15 +71,15 @@ def AnalyticMagDipoleWholeSpace(XYZ, txLoc, sig, f, m=1., orientation='X'):
XYZ = Utils.asArray_N_x_Dim(XYZ, 3)
dx = XYZ[:,0]-txLoc[0]
dy = XYZ[:,1]-txLoc[1]
dz = XYZ[:,2]-txLoc[2]
dx = XYZ[:,0]-srcLoc[0]
dy = XYZ[:,1]-srcLoc[1]
dz = XYZ[:,2]-srcLoc[2]
r = np.sqrt( dx**2. + dy**2. + dz**2.)
k = np.sqrt( -1j*2.*np.pi*f*mu_0*sig )
k = np.sqrt( -1j*2.*np.pi*f*mu*sig )
kr = k*r
front = m / (4.*pi * r**3.) * np.exp(-1j*kr)
front = moment / (4.*pi * r**3.) * np.exp(-1j*kr)
mid = -kr**2. + 3.*1j*kr + 3.
if orientation.upper() == 'X':
@@ -93,8 +97,57 @@ def AnalyticMagDipoleWholeSpace(XYZ, txLoc, sig, f, m=1., orientation='X'):
Hy = front*( (dy*dz/r**2.) * mid )
Hz = front*( (dz/r)**2. * mid + (kr**2. - 1j*kr - 1.) )
Bx = mu_0*Hx
By = mu_0*Hy
Bz = mu_0*Hz
Bx = mu*Hx
By = mu*Hy
Bz = mu*Hz
if Bx.ndim is 1:
Bx = Utils.mkvc(Bx,2)
if By.ndim is 1:
By = Utils.mkvc(By,2)
if Bz.ndim is 1:
Bz = Utils.mkvc(Bz,2)
return Bx, By, Bz
def ElectricDipoleWholeSpace(XYZ, srcLoc, sig, f, current=1., length=1., orientation='X', mu=mu_0):
XYZ = Utils.asArray_N_x_Dim(XYZ, 3)
dx = XYZ[:,0]-srcLoc[0]
dy = XYZ[:,1]-srcLoc[1]
dz = XYZ[:,2]-srcLoc[2]
r = np.sqrt( dx**2. + dy**2. + dz**2.)
k = np.sqrt( -1j*2.*np.pi*f*mu*sig )
kr = k*r
front = current * length / (4. * np.pi * sig * r**3) * np.exp(-1j*k*r)
mid = -k**2 * r**2 + 3*1j*k*r + 3
# Ex = front*((dx**2 / r**2)*mid + (k**2 * r**2 -1j*k*r))
# Ey = front*(dx*dy / r**2)*mid
# Ez = front*(dx*dz / r**2)*mid
if orientation.upper() == 'X':
Ex = front*((dx**2 / r**2)*mid + (k**2 * r**2 -1j*k*r-1.))
Ey = front*(dx*dy / r**2)*mid
Ez = front*(dx*dz / r**2)*mid
return Ex, Ey, Ez
elif orientation.upper() == 'Y':
# x--> y, y--> z, z-->x
Ey = front*((dy**2 / r**2)*mid + (k**2 * r**2 -1j*k*r-1.))
Ez = front*(dy*dz / r**2)*mid
Ex = front*(dy*dx / r**2)*mid
return Ex, Ey, Ez
elif orientation.upper() == 'Z':
# x --> z, y --> x, z --> y
Ez = front*((dz**2 / r**2)*mid + (k**2 * r**2 -1j*k*r-1.))
Ex = front*(dz*dx / r**2)*mid
Ey = front*(dz*dy / r**2)*mid
return Ex, Ey, Ez
# return Ey, Ez, Ex
+98
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@@ -0,0 +1,98 @@
from SimPEG import Utils, np
from scipy.constants import mu_0, epsilon_0
from simpegEM.Utils.EMUtils import k
def getKc(freq,sigma,a,b,mu=mu_0,eps=epsilon_0):
a = float(a)
b = float(b)
# return 1./(2*np.pi) * np.sqrt(b / a) * np.exp(-1j*k(freq,sigma,mu,eps)*(b-a))
return np.sqrt(b / a) * np.exp(-1j*k(freq,sigma,mu,eps)*(b-a))
def _r2(xyz):
return np.sum(xyz**2,1)
def _getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
Kc1 = getKc(freq,sigma[1],a,b,mu[1],eps)
nobs = obsloc.shape[0]
dxyz = obsloc - np.c_[np.ones(nobs)]*np.r_[srcloc]
r2 = _r2(dxyz[:,:2])
sqrtr2z2 = np.sqrt(r2 + dxyz[:,2]**2)
k2 = k(freq,sigma[2],mu[2],eps)
return Kc1 * moment / (4.*np.pi) *np.exp(-1j*k2*sqrtr2z2) / sqrtr2z2
def _getCasingHertzMagDipoleDeriv_r(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
HertzZ = _getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
nobs = obsloc.shape[0]
dxyz = obsloc - np.c_[np.ones(nobs)]*np.r_[srcloc]
r2 = _r2(dxyz[:,:2])
sqrtr2z2 = np.sqrt(r2 + dxyz[:,2]**2)
k2 = k(freq,sigma[2],mu[2],eps)
return -HertzZ * np.sqrt(r2) / sqrtr2z2 * (1j*k2 + 1./ sqrtr2z2)
def _getCasingHertzMagDipoleDeriv_z(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
HertzZ = _getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
nobs = obsloc.shape[0]
dxyz = obsloc - np.c_[np.ones(nobs)]*np.r_[srcloc]
r2z2 = _r2(dxyz)
sqrtr2z2 = np.sqrt(r2z2)
k2 = k(freq,sigma[2],mu[2],eps)
return -HertzZ*dxyz[:,2] /sqrtr2z2 * (1j*k2 + 1./sqrtr2z2)
def _getCasingHertzMagDipole2Deriv_z_r(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
HertzZ = _getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
dHertzZdr = _getCasingHertzMagDipoleDeriv_r(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
nobs = obsloc.shape[0]
dxyz = obsloc - np.c_[np.ones(nobs)]*np.r_[srcloc]
r2 = _r2(dxyz[:,:2])
r = np.sqrt(r2)
z = dxyz[:,2]
sqrtr2z2 = np.sqrt(r2 + z**2)
k2 = k(freq,sigma[2],mu[2],eps)
return dHertzZdr*(-z/sqrtr2z2)*(1j*k2+1./sqrtr2z2) + HertzZ*(z*r/sqrtr2z2**3)*(1j*k2 + 2./sqrtr2z2)
def _getCasingHertzMagDipole2Deriv_z_z(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
HertzZ = _getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
dHertzZdz = _getCasingHertzMagDipoleDeriv_z(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
nobs = obsloc.shape[0]
dxyz = obsloc - np.c_[np.ones(nobs)]*np.r_[srcloc]
r2 = _r2(dxyz[:,:2])
r = np.sqrt(r2)
z = dxyz[:,2]
sqrtr2z2 = np.sqrt(r2 + z**2)
k2 = k(freq,sigma[2],mu[2],eps)
return (dHertzZdz*z + HertzZ)/sqrtr2z2*(-1j*k2 - 1./sqrtr2z2) + HertzZ*z/sqrtr2z2**3*(1j*k2*z + 2.*z/sqrtr2z2)
def getCasingEphiMagDipole(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
return 1j * omega(freq) * mu * _getCasingHertzMagDipoleDeriv_r(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
def getCasingHrMagDipole(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
return _getCasingHertzMagDipole2Deriv_z_r(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
def getCasingHzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
d2HertzZdz2 = _getCasingHertzMagDipole2Deriv_z_z(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
k2 = k(freq,sigma[2],mu[2],eps)
HertzZ = _getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
return d2HertzZdz2 + k2**2 * HertzZ
def getCasingBrMagDipole(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
return mu_0 * getCasingHrMagDipole(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
def getCasingBzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu=mu_0*np.ones(3),eps=epsilon_0,moment=1.):
return mu_0 * getCasingHzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu,eps,moment)
+1
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@@ -1,2 +1,3 @@
from TDEM import hzAnalyticDipoleT
from FDEM import hzAnalyticDipoleF
from FDEMcasing import *
+95 -59
View File
@@ -1,16 +1,24 @@
from SimPEG import Survey, Problem, Utils, Models, np, sp, Solver as SimpegSolver
from SimPEG import Survey, Problem, Utils, Models, Maps, PropMaps, np, sp, Solver as SimpegSolver
from scipy.constants import mu_0
class EMPropMap(Maps.PropMap):
sigma = Maps.Property("Electrical Conductivity", defaultInvProp = True, propertyLink=('rho',Maps.ReciprocalMap))
mu = Maps.Property("Inverse Magnetic Permeability", defaultVal = mu_0, propertyLink=('mui',Maps.ReciprocalMap))
rho = Maps.Property("Electrical Resistivity", propertyLink=('sigma', Maps.ReciprocalMap))
mui = Maps.Property("Inverse Magnetic Permeability", defaultVal = 1./mu_0, propertyLink=('mu', Maps.ReciprocalMap))
class BaseEMProblem(Problem.BaseProblem):
def __init__(self, mesh, **kwargs):
Problem.BaseProblem.__init__(self, mesh, **kwargs)
solType = None
storeTheseFields = ['e', 'b']
surveyPair = Survey.BaseSurvey
dataPair = Survey.Data
PropMap = EMPropMap
Solver = SimpegSolver
solverOpts = {}
@@ -26,84 +34,112 @@ class BaseEMProblem(Problem.BaseProblem):
self.__makeASymmetric = True
return self.__makeASymmetric
####################################################
# Mu Model
####################################################
@property
def mu(self):
if getattr(self, '_mu', None) is None:
self._mu = mu_0
return self._mu
@mu.setter
def mu(self, value):
if getattr(self, '_MfMui', None) is not None:
del self._MfMui
if getattr(self, '_MeMu', None) is not None:
del delf._MeMu
if getattr(self, '_MeMuI', None) is not None:
del self._MeMuI
self._mu = value
####################################################
# Mass Matrices
####################################################
@property
def MfMui(self):
if getattr(self, '_MfMui', None) is None:
self._MfMui = self.mesh.getFaceInnerProduct(1/self.mu)
return self._MfMui
@property
def MeMuI(self):
# TODO: Assuming isotropic mu
if getattr(self, '_MeMuI', None) is None:
self._MeMuI = self.mesh.getEdgeInnerProduct(self.mu, invMat=True)
return self._MeMuI
@property
def MeMu(self):
#TODO: Assuming isotropic mu
if getattr(self, '_MeMu', None) is None:
self._MeMu = self.mesh.getEdgeInnerProduct(self.mu)
return self._MeMu
def deleteTheseOnModelUpdate(self):
toDelete = []
if self.mapping.sigmaMap is not None or self.mapping.rhoMap is not None:
toDelete += ['_MeSigma', '_MeSigmaI','_MfRho','_MfRhoI']
if self.mapping.muMap is not None or self.mapping.muiMap is not None:
toDelete += ['_MeMu', '_MeMuI','_MfMui','_MfMuiI']
return toDelete
@property
def Me(self):
if getattr(self, '_Me', None) is None:
self._Me = self.mesh.getEdgeInnerProduct()
return self._Me
@property
def Mf(self):
if getattr(self, '_Mf', None) is None:
self._Mf = self.mesh.getFaceInnerProduct()
return self._Mf
# ----- Magnetic Permeability ----- #
@property
def MfMui(self):
if getattr(self, '_MfMui', None) is None:
self._MfMui = self.mesh.getFaceInnerProduct(self.curModel.mui)
return self._MfMui
@property
def MfMuiI(self):
if getattr(self, '_MfMuiI', None) is None:
self._MfMuiI = self.mesh.getFaceInnerProduct(self.curModel.mui, invMat=True)
return self._MfMuiI
@property
def MeMu(self):
if getattr(self, '_MeMu', None) is None:
self._MeMu = self.mesh.getEdgeInnerProduct(self.curModel.mu)
return self._MeMu
@property
def MeMuI(self):
if getattr(self, '_MeMuI', None) is None:
self._MeMuI = self.mesh.getEdgeInnerProduct(self.curModel.mu, invMat=True)
return self._MeMuI
# ----- Electrical Conductivity ----- #
#TODO: hardcoded to sigma as the model
@property
def MeSigma(self):
#TODO: hardcoded to sigma as the model
if getattr(self, '_MeSigma', None) is None:
sigma = self.curModel.transform
self._MeSigma = self.mesh.getEdgeInnerProduct(sigma)
self._MeSigma = self.mesh.getEdgeInnerProduct(self.curModel.sigma)
return self._MeSigma
# TODO: This should take a vector
def MeSigmaDeriv(self, u):
"""
Deriv of MeSigma wrt sigma
"""
return self.mesh.getEdgeInnerProductDeriv(self.curModel.sigma)(u) * self.curModel.sigmaDeriv
@property
def MeSigmaI(self):
#TODO: hardcoded to sigma as the model
if getattr(self, '_MeSigmaI', None) is None:
sigma = self.curModel.transform
self._MeSigmaI = self.mesh.getEdgeInnerProduct(sigma, invMat=True)
self._MeSigmaI = self.mesh.getEdgeInnerProduct(self.curModel.sigma, invMat=True)
return self._MeSigmaI
# TODO: This should take a vector
def MeSigmaIDeriv(self, u):
"""
Deriv of MeSigma wrt sigma
"""
# TODO: only works for diagonal tensors. getEdgeInnerProductDeriv, invMat=True should be implemented in SimPEG
dMeSigmaI_dI = -self.MeSigmaI**2
dMe_dsig = self.mesh.getEdgeInnerProductDeriv(self.curModel.sigma)(u)
dsig_dm = self.curModel.sigmaDeriv
return dMeSigmaI_dI * ( dMe_dsig * ( dsig_dm))
# return self.mesh.getEdgeInnerProductDeriv(self.curModel.sigma, invMat=True)(u)
@property
def MfSigmai(self):
#TODO: hardcoded to sigma as the model
#TODO: hardcoded to sigma diagonal
if getattr(self, '_MfSigmai', None) is None:
sigma = self.curModel.transform
self._MfSigmai = self.mesh.getFaceInnerProduct(1/sigma)
return self._MfSigmai
def MfRho(self):
if getattr(self, '_MfRho', None) is None:
self._MfRho = self.mesh.getFaceInnerProduct(self.curModel.rho)
return self._MfRho
deleteTheseOnModelUpdate = ['_MeSigma', '_MeSigmaI','_MfSigmai']
# TODO: This should take a vector
def MfRhoDeriv(self,u):
return self.mesh.getFaceInnerProductDeriv(self.curModel.rho)(u) * (-Utils.sdiag(self.curModel.rho**2) * self.curModel.sigmaDeriv)
# self.curModel.rhoDeriv
def fields(self, m):
self.curModel = m
F = self.forward(m, self.getRHS, self.calcFields)
return F
@property
def MfRhoI(self):
if getattr(self, '_MfRhoI', None) is None:
self._MfRhoI = self.mesh.getFaceInnerProduct(self.curModel.rho, invMat=True)
return self._MfRhoI
# TODO: This isn't going to work yet
# TODO: This should take a vector
def MfRhoIDeriv(self,u):
return self.mesh.getFaceInnerProductDeriv(self.curModel.rho, invMat=True)(u) * self.curModel.rhoDeriv
+2 -2
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@@ -36,8 +36,8 @@ if plotIt:
rxOffset=1e-3
rx = EM.TDEM.RxTDEM(np.array([[rxOffset, 0., 30]]), np.logspace(-5,-3, 31), 'bz')
tx = EM.TDEM.TxTDEM(np.array([0., 0., 80]), 'VMD_MVP', [rx])
survey = EM.TDEM.SurveyTDEM([tx])
src = EM.TDEM.SrcTDEM_VMD_MVP([rx], np.array([0., 0., 80]))
survey = EM.TDEM.SurveyTDEM([src])
prb = EM.TDEM.ProblemTDEM_b(mesh, mapping=mapping)
prb.Solver = SolverLU
+328 -327
View File
@@ -1,108 +1,10 @@
from SimPEG import Survey, Problem, Utils, np, sp, Solver as SimpegSolver
from scipy.constants import mu_0
from SurveyFDEM import SurveyFDEM, FieldsFDEM
from simpegEM import Sources
from SurveyFDEM import SurveyFDEM
from FieldsFDEM import FieldsFDEM, FieldsFDEM_e, FieldsFDEM_b, FieldsFDEM_h, FieldsFDEM_j
from simpegEM.Base import BaseEMProblem
from simpegEM.Utils.EMUtils import omega
def omega(freq):
"""Change frequency to angular frequency, omega"""
return 2.*np.pi*freq
def getSource(self,freq):
"""
:param float freq: Frequency
:rtype: numpy.ndarray (nE, nTx)
:return: RHS
"""
Txs = self.survey.getTransmitters(freq)
rhs = range(len(Txs))
solType = self.solType
if solType == 'e' or solType == 'b':
gridEJx = self.mesh.gridEx
gridEJy = self.mesh.gridEy
gridEJz = self.mesh.gridEz
nEJ = self.mesh.nE
gridBHx = self.mesh.gridFx
gridBHy = self.mesh.gridFy
gridBHz = self.mesh.gridFz
nBH = self.mesh.nF
C = self.mesh.edgeCurl
mui = self.MfMui
elif solType == 'h' or solType == 'j':
gridEJx = self.mesh.gridFx
gridEJy = self.mesh.gridFy
gridEJz = self.mesh.gridFz
nEJ = self.mesh.nF
gridBHx = self.mesh.gridEx
gridBHy = self.mesh.gridEy
gridBHz = self.mesh.gridEz
nBH = self.mesh.nE
C = self.mesh.edgeCurl.T
mui = self.MeMuI
else:
NotImplementedError('Only E or F sources')
for i, tx in enumerate(Txs):
if self.mesh._meshType is 'CYL':
if self.mesh.isSymmetric:
if tx.txType == 'VMD':
SRC = Sources.MagneticDipoleVectorPotential(tx.loc, gridEJy, 'y')
elif tx.txType =='CircularLoop':
SRC = Sources.MagneticLoopVectorPotential(tx.loc, gridEJy, 'y', tx.radius)
else:
raise NotImplementedError('Only VMD and CircularLoop')
else:
raise NotImplementedError('Non-symmetric cyl mesh not implemented yet!')
elif self.mesh._meshType is 'TENSOR':
if tx.txType == 'VMD':
src = Sources.MagneticDipoleVectorPotential
SRCx = src(tx.loc, gridEJx, 'x')
SRCy = src(tx.loc, gridEJy, 'y')
SRCz = src(tx.loc, gridEJz, 'z')
elif tx.txType == 'VMD_B':
src = Sources.MagneticDipoleFields
SRCx = src(tx.loc, gridBHx, 'x')
SRCy = src(tx.loc, gridBHy, 'y')
SRCz = src(tx.loc, gridBHz, 'z')
elif tx.txType == 'CircularLoop':
src = Sources.MagneticLoopVectorPotential
SRCx = src(tx.loc, gridEJx, 'x', tx.radius)
SRCy = src(tx.loc, gridEJy, 'y', tx.radius)
SRCz = src(tx.loc, gridEJz, 'z', tx.radius)
else:
raise NotImplemented('%s txType is not implemented' % tx.txType)
SRC = np.concatenate((SRCx, SRCy, SRCz))
else:
raise Exception('Unknown mesh for VMD')
rhs[i] = SRC
# b-forumlation
if tx.txType == 'VMD_B':
b_0 = np.concatenate(rhs).reshape((nBH, len(Txs)), order='E')
else:
a = np.concatenate(rhs).reshape((nEJ, len(Txs)), order='F')
b_0 = C*a
if solType == 'b' or solType == 'h':
return b_0
elif solType == 'e' or solType == 'j':
return C.T*mui*b_0
class BaseFDEMProblem(BaseEMProblem):
"""
@@ -110,58 +12,71 @@ class BaseFDEMProblem(BaseEMProblem):
.. math::
\\nabla \\times \\vec{E} + i \\omega \\vec{B} = 0 \\\\
\\nabla \\times \\mu^{-1} \\vec{B} - \\sigma \\vec{E} = \\vec{J_s}
\\nabla \\times \\vec{E} + i \\omega \\vec{B} = \\vec{S_m} \\\\
\\nabla \\times \\mu^{-1} \\vec{B} - \\sigma \\vec{E} = \\vec{S_e}
"""
surveyPair = SurveyFDEM
fieldsPair = FieldsFDEM
def forward(self, m, RHS, CalcFields):
F = FieldsFDEM(self.mesh, self.survey)
def fields(self, m=None):
self.curModel = m
F = self.fieldsPair(self.mesh, self.survey)
for freq in self.survey.freqs:
A = self.getA(freq)
rhs = RHS(freq)
rhs = self.getRHS(freq)
Ainv = self.Solver(A, **self.solverOpts)
sol = Ainv * rhs
for fieldType in self.storeTheseFields:
Txs = self.survey.getTransmitters(freq)
F[Txs, fieldType] = CalcFields(sol, freq, fieldType)
Srcs = self.survey.getSrcByFreq(freq)
ftype = self._fieldType + 'Solution'
F[Srcs, ftype] = sol
return F
def Jvec(self, m, v, u=None):
if u is None:
u = self.fields(m)
def Jvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
Jv = self.dataPair(self.survey)
for freq in self.survey.freqs:
A = self.getA(freq)
Ainv = self.Solver(A, **self.solverOpts)
dA_du = self.getA(freq) #
dA_duI = self.Solver(dA_du, **self.solverOpts)
for tx in self.survey.getTransmitters(freq):
u_tx = u[tx, self.solType]
w = self.getADeriv(freq, u_tx, v)
Ainvw = Ainv * w
for rx in tx.rxList:
fAinvw = self.calcFields(Ainvw, freq, rx.projField)
P = lambda v: rx.projectFieldsDeriv(tx, self.mesh, u, v)
for src in self.survey.getSrcByFreq(freq):
ftype = self._fieldType + 'Solution'
u_src = f[src, ftype]
dA_dm = self.getADeriv_m(freq, u_src, v)
dRHS_dm = self.getRHSDeriv_m(src, v)
if dRHS_dm is None:
du_dm = dA_duI * ( - dA_dm )
else:
du_dm = dA_duI * ( - dA_dm + dRHS_dm )
for rx in src.rxList:
# df_duFun = u.deriv_u(rx.fieldsUsed, m)
df_duFun = getattr(f, '_%sDeriv_u'%rx.projField, None)
df_du = df_duFun(src, du_dm, adjoint=False)
if df_du is not None:
du_dm = df_du
df_dm = self.calcFieldsDeriv(u_tx, freq, rx.projField, v)
if df_dm is None:
Jv[tx, rx] = - P(fAinvw)
else:
Jv[tx, rx] = - P(fAinvw) + P(df_dm)
df_dmFun = getattr(f, '_%sDeriv_m'%rx.projField, None)
df_dm = df_dmFun(src, v, adjoint=False)
if df_dm is not None:
du_dm += df_dm
P = lambda v: rx.projectFieldsDeriv(src, self.mesh, f, v) # wrt u, also have wrt m
Jv[src, rx] = P(du_dm)
return Utils.mkvc(Jv)
def Jtvec(self, m, v, u=None):
if u is None:
u = self.fields(m)
def Jtvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
@@ -169,39 +84,73 @@ class BaseFDEMProblem(BaseEMProblem):
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
Jtv = np.zeros(self.mapping.nP)
Jtv = np.zeros(m.size)
for freq in self.survey.freqs:
AT = self.getA(freq).T
ATinv = self.Solver(AT, **self.solverOpts)
for tx in self.survey.getTransmitters(freq):
u_tx = u[tx, self.solType]
for src in self.survey.getSrcByFreq(freq):
ftype = self._fieldType + 'Solution'
u_src = f[src, ftype]
for rx in tx.rxList:
PTv = rx.projectFieldsDeriv(tx, self.mesh, u, v[tx, rx], adjoint=True)
fPTv = self.calcFields(PTv, freq, rx.projField, adjoint=True)
for rx in src.rxList:
PTv = rx.projectFieldsDeriv(src, self.mesh, f, v[src, rx], adjoint=True) # wrt u, need possibility wrt m
w = ATinv * fPTv
Jtv_rx = - self.getADeriv(freq, u_tx, w, adjoint=True)
df_duTFun = getattr(f, '_%sDeriv_u'%rx.projField, None)
df_duT = df_duTFun(src, PTv, adjoint=True)
if df_duT is not None:
dA_duIT = ATinv * df_duT
else:
dA_duIT = ATinv * PTv
df_dm = self.calcFieldsDeriv(u_tx, freq, rx.projField, PTv, adjoint=True)
dA_dmT = self.getADeriv_m(freq, u_src, dA_duIT, adjoint=True)
if df_dm is not None:
Jtv_rx += df_dm
dRHS_dmT = self.getRHSDeriv_m(src, dA_duIT, adjoint=True)
if dRHS_dmT is None:
du_dmT = - dA_dmT
else:
du_dmT = -dA_dmT + dRHS_dmT
df_dmFun = getattr(f, '_%sDeriv_m'%rx.projField, None)
dfT_dm = df_dmFun(src, PTv, adjoint=True)
if dfT_dm is not None:
du_dmT += dfT_dm
real_or_imag = rx.projComp
if real_or_imag == 'real':
Jtv += Jtv_rx.real
Jtv += du_dmT.real
elif real_or_imag == 'imag':
Jtv += - Jtv_rx.real
Jtv += - du_dmT.real
else:
raise Exception('Must be real or imag')
return Jtv
def getSource(self,freq):
return self.getSource(freq)
def getSourceTerm(self, freq):
"""
:param float freq: Frequency
:rtype: numpy.ndarray (nE or nF, nSrc)
:return: RHS
"""
Srcs = self.survey.getSrcByFreq(freq)
if self._eqLocs is 'FE':
S_m = np.zeros((self.mesh.nF,len(Srcs)), dtype=complex)
S_e = np.zeros((self.mesh.nE,len(Srcs)), dtype=complex)
elif self._eqLocs is 'EF':
S_m = np.zeros((self.mesh.nE,len(Srcs)), dtype=complex)
S_e = np.zeros((self.mesh.nF,len(Srcs)), dtype=complex)
for i, src in enumerate(Srcs):
smi, sei = src.eval(self)
if smi is not None:
S_m[:,i] = Utils.mkvc(smi)
if sei is not None:
S_e[:,i] = Utils.mkvc(sei)
return S_m, S_e
##########################################################################################
################################ E-B Formulation #########################################
@@ -225,10 +174,13 @@ class ProblemFDEM_e(BaseFDEMProblem):
"""
solType = 'e'
def __init__(self, model, **kwargs):
BaseFDEMProblem.__init__(self, model, **kwargs)
_fieldType = 'e'
_eqLocs = 'FE'
fieldsPair = FieldsFDEM_e
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
def getA(self, freq):
"""
@@ -236,62 +188,77 @@ class ProblemFDEM_e(BaseFDEMProblem):
:rtype: scipy.sparse.csr_matrix
:return: A
"""
mui = self.MfMui
sig = self.MeSigma
MfMui = self.MfMui
MeSigma = self.MeSigma
C = self.mesh.edgeCurl
return C.T*mui*C + 1j*omega(freq)*sig
return C.T*MfMui*C + 1j*omega(freq)*MeSigma
def getADeriv(self, freq, u, v, adjoint=False):
sig = self.curModel.transform
dsig_dm = self.curModel.transformDeriv
dMe_dsig = self.mesh.getEdgeInnerProductDeriv(sig)(u)
def getADeriv_m(self, freq, u, v, adjoint=False):
dsig_dm = self.curModel.sigmaDeriv
dMe_dsig = self.MeSigmaDeriv(u)
if adjoint:
return 1j * omega(freq) * ( dsig_dm.T * ( dMe_dsig.T * v ) )
return 1j * omega(freq) * ( dMe_dsig.T * v )
return 1j * omega(freq) * ( dMe_dsig * ( dsig_dm * v ) )
return 1j * omega(freq) * ( dMe_dsig * v )
def getRHS(self, freq):
"""
:param float freq: Frequency
:rtype: numpy.ndarray (nE, nTx)
:rtype: numpy.ndarray (nE, nSrc)
:return: RHS
"""
j_s = getSource(self,freq)
return -1j*omega(freq)*j_s
S_m, S_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MfMui = self.MfMui
def calcFields(self, sol, freq, fieldType, adjoint=False):
e = sol
if fieldType == 'e':
return e
elif fieldType == 'b':
if not adjoint:
b = -(1./(1j*omega(freq))) * ( self.mesh.edgeCurl * e )
RHS = C.T * (MfMui * S_m) -1j*omega(freq)*S_e
return RHS
def getRHSDeriv_m(self, src, v, adjoint=False):
C = self.mesh.edgeCurl
MfMui = self.MfMui
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint)
if adjoint:
dRHS = MfMui * (C * v)
S_mDerivv = S_mDeriv(dRHS)
S_eDerivv = S_eDeriv(v)
if S_mDerivv is not None and S_eDerivv is not None:
return S_mDerivv - 1j*omega(freq)*S_eDerivv
elif S_mDerivv is not None:
return S_mDerivv
elif S_eDerivv is not None:
return - 1j*omega(freq)*S_eDerivv
else:
b = -(1./(1j*omega(freq))) * ( self.mesh.edgeCurl.T * e )
return b
raise NotImplementedError('fieldType "%s" is not implemented.' % fieldType)
return None
else:
S_mDerivv, S_eDerivv = S_mDeriv(v), S_eDeriv(v)
def calcFieldsDeriv(self, sol, freq, fieldType, v, adjoint=False):
e = sol
if fieldType == 'e':
return None
elif fieldType == 'b':
return None
raise NotImplementedError('fieldType "%s" is not implemented.' % fieldType)
if S_mDerivv is not None and S_eDerivv is not None:
return C.T * (MfMui * S_mDerivv) -1j*omega(freq)*S_eDerivv
elif S_mDerivv is not None:
return C.T * (MfMui * S_mDerivv)
elif S_eDerivv is not None:
return -1j*omega(freq)*S_eDerivv
else:
return None
class ProblemFDEM_b(BaseFDEMProblem):
"""
Solving for b!
"""
solType = 'b'
_fieldType = 'b'
_eqLocs = 'FE'
fieldsPair = FieldsFDEM_b
def __init__(self, model, **kwargs):
BaseFDEMProblem.__init__(self, model, **kwargs)
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
def getA(self, freq):
"""
@@ -299,87 +266,100 @@ class ProblemFDEM_b(BaseFDEMProblem):
:rtype: scipy.sparse.csr_matrix
:return: A
"""
mui = self.MfMui
sigI = self.MeSigmaI
MfMui = self.MfMui
MeSigmaI = self.MeSigmaI
C = self.mesh.edgeCurl
iomega = 1j * omega(freq) * sp.eye(self.mesh.nF)
A = C*sigI*C.T*mui + iomega
A = C*MeSigmaI*C.T*MfMui + iomega
if self._makeASymmetric is True:
return mui.T*A
return A
return MfMui.T*A
return A
def getADeriv(self, freq, u, v, adjoint=False):
def getADeriv_m(self, freq, u, v, adjoint=False):
mui = self.MfMui
MfMui = self.MfMui
C = self.mesh.edgeCurl
sig = self.curModel.transform
dsig_dm = self.curModel.transformDeriv
#TODO: This only works if diagonal (no tensors)...
dMeSigmaI_dI = - self.MeSigmaI**2
MeSigmaIDeriv = self.MeSigmaIDeriv
vec = C.T*(MfMui*u)
vec = (C.T*(mui*u))
dMe_dsig = self.mesh.getEdgeInnerProductDeriv(sig)(vec)
MeSigmaIDeriv = MeSigmaIDeriv(vec)
if adjoint:
if self._makeASymmetric is True:
v = mui * v
return dsig_dm.T * ( dMe_dsig.T * ( dMeSigmaI_dI.T * ( C.T * v ) ) )
v = MfMui * v
return MeSigmaIDeriv.T * (C.T * v)
if self._makeASymmetric is True:
return mui.T * ( C * ( dMeSigmaI_dI * ( dMe_dsig * ( dsig_dm * v ) ) ) )
return C * ( dMeSigmaI_dI * ( dMe_dsig * ( dsig_dm * v ) ) )
return MfMui.T * ( C * ( MeSigmaIDeriv * v ) )
return C * ( MeSigmaIDeriv * v )
def getRHS(self, freq):
"""
:param float freq: Frequency
:rtype: numpy.ndarray (nE, nTx)
:rtype: numpy.ndarray (nE, nSrc)
:return: RHS
"""
b_0 = getSource(self,freq)
rhs = -1j*omega(freq)*b_0
S_m, S_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MeSigmaI = self.MeSigmaI
RHS = S_m + C * ( MeSigmaI * S_e )
if self._makeASymmetric is True:
mui = self.MfMui
return mui.T*rhs
return rhs
MfMui = self.MfMui
return MfMui.T*RHS
def calcFields(self, sol, freq, fieldType, adjoint=False):
b = sol
if fieldType == 'e':
return RHS
def getRHSDeriv_m(self, src, v, adjoint=False):
C = self.mesh.edgeCurl
S_m, S_e = src.eval(self)
MfMui = self.MfMui
if self._makeASymmetric and adjoint:
v = self.MfMui * v
if S_e is not None:
MeSigmaIDeriv = self.MeSigmaIDeriv(Utils.mkvc(S_e))
if not adjoint:
e = self.MeSigmaI * ( self.mesh.edgeCurl.T * ( self.MfMui * b ) )
else:
e = self.MfMui.T * ( self.mesh.edgeCurl * ( self.MeSigmaI.T * b ) )
return e
elif fieldType == 'b':
return b
raise NotImplementedError('fieldType "%s" is not implemented.' % fieldType)
RHSderiv = C * (MeSigmaIDeriv * v)
elif adjoint:
RHSderiv = MeSigmaIDeriv.T * (C.T * v)
else:
RHSderiv = None
def calcFieldsDeriv(self, sol, freq, fieldType, v, adjoint=False):
b = sol
if fieldType == 'e':
sig = self.curModel.transform
dsig_dm = self.curModel.transformDeriv
C = self.mesh.edgeCurl
mui = self.MfMui
#TODO: This only works if diagonal (no tensors)...
dMeSigmaI_dI = - self.MeSigmaI**2
vec = C.T * ( mui * b )
dMe_dsig = self.mesh.getEdgeInnerProductDeriv(sig)(vec)
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint)
S_mDeriv, S_eDeriv = S_mDeriv(v), S_eDeriv(v)
if S_mDeriv is not None and S_eDeriv is not None:
if not adjoint:
return dMeSigmaI_dI * ( dMe_dsig * ( dsig_dm * v ) )
else:
return dsig_dm.T * ( dMe_dsig.T * ( dMeSigmaI_dI.T * v ) )
elif fieldType == 'b':
return None
raise NotImplementedError('fieldType "%s" is not implemented.' % fieldType)
SrcDeriv = S_mDeriv + C * (self.MeSigmaI * S_eDeriv)
elif adjoint:
SrcDeriv = S_mDeriv + Self.MeSigmaI.T * ( C.T * S_eDeriv)
elif S_mDeriv is not None:
SrcDeriv = S_mDeriv
elif S_eDeriv is not None:
if not adjoint:
SrcDeriv = C * (self.MeSigmaI * S_eDeriv)
elif adjoint:
SrcDeriv = self.MeSigmaI.T * ( C.T * S_eDeriv)
else:
SrcDeriv = None
if RHSderiv is not None and SrcDeriv is not None:
RHSderiv += SrcDeriv
elif SrcDeriv is not None:
RHSderiv = SrcDeriv
if RHSderiv is not None:
if self._makeASymmetric is True and not adjoint:
return MfMui.T * RHSderiv
return RHSderiv
##########################################################################################
@@ -401,7 +381,7 @@ class ProblemFDEM_j(BaseFDEMProblem):
.. math::
\\nabla \\times ( \\mu^{-1} \\nabla \\times \\sigma^{-1} \\vec{J} ) + i\\omega \\vec{J} = - i\\omega\\vec{J_s}
We discretize this to:
.. math::
@@ -412,15 +392,16 @@ class ProblemFDEM_j(BaseFDEMProblem):
"""
solType = 'j'
storeTheseFields = ['j','h']
_fieldType = 'j'
_eqLocs = 'EF'
fieldsPair = FieldsFDEM_j
def __init__(self, model, **kwargs):
BaseFDEMProblem.__init__(self, model, **kwargs)
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
def getA(self, freq):
"""
Here, we form the operator \(\\mathbf{A}\) to solce
Here, we form the operator \(\\mathbf{A}\) to solce
.. math::
\\mathbf{A} = \\mathbf{C} \\mathbf{M^e_{mu^{-1}}} \\mathbf{C^T} \\mathbf{M^f_{\\sigma^{-1}}} + i\\omega
@@ -430,96 +411,98 @@ class ProblemFDEM_j(BaseFDEMProblem):
"""
MeMuI = self.MeMuI
MfSigi = self.MfSigmai
MfRho = self.MfRho
C = self.mesh.edgeCurl
iomega = 1j * omega(freq) * sp.eye(self.mesh.nF)
A = C * MeMuI * C.T * MfSigi + iomega
A = C * MeMuI * C.T * MfRho + iomega
if self._makeASymmetric is True:
return MfSigi.T*A
return A
return MfRho.T*A
return A
def getADeriv(self, freq, u, v, adjoint=False):
def getADeriv_m(self, freq, u, v, adjoint=False):
"""
In this case, we assume that electrical conductivity, \(\\sigma\) is the physical property of interest (i.e. \(\sigma\) = model.transform). Then we want
.. math::
.. math::
\\frac{\mathbf{A(\\sigma)} \mathbf{v}}{d \\mathbf{m}} &= \\mathbf{C} \\mathbf{M^e_{mu^{-1}}} \\mathbf{C^T} \\frac{d \\mathbf{M^f_{\\sigma^{-1}}}}{d \\mathbf{m}}
&= \\mathbf{C} \\mathbf{M^e_{mu}^{-1}} \\mathbf{C^T} \\frac{d \\mathbf{M^f_{\\sigma^{-1}}}}{d \\mathbf{\\sigma^{-1}}} \\frac{d \\mathbf{\\sigma^{-1}}}{d \\mathbf{\\sigma}} \\frac{d \\mathbf{\\sigma}}{d \\mathbf{m}}
"""
MeMuI = self.MeMuI
MfSigi = self.MfSigmai
MfRho = self.MfRho
C = self.mesh.edgeCurl
sig = self.curModel.transform
sigi = 1/sig
dsig_dm = self.curModel.transformDeriv
dsigi_dsig = -Utils.sdiag(sigi)**2
dMf_dsigi = self.mesh.getFaceInnerProductDeriv(sigi)(u)
MfRhoDeriv_m = self.MfRhoDeriv(u)
if adjoint:
if self._makeASymmetric is True:
v = MfSigi * v
return dsig_dm.T * ( dsigi_dsig.T *( dMf_dsigi.T * ( C * ( MeMuI.T * ( C.T * v ) ) ) ) )
v = MfRho * v
return MfRhoDeriv_m.T * (C * (MeMuI.T * (C.T * v)))
if self._makeASymmetric is True:
return MfSigi.T * ( C * ( MeMuI * ( C.T * ( dMf_dsigi * ( dsigi_dsig * ( dsig_dm * v ) ) ) ) ) )
return C * ( MeMuI * ( C.T * ( dMf_dsigi * ( dsigi_dsig * ( dsig_dm * v ) ) ) ) )
if self._makeASymmetric is True:
return MfRho.T * (C * ( MeMuI * (C.T * (MfRhoDeriv_m * v) )))
return C * (MeMuI * (C.T * (MfRhoDeriv_m * v)))
def getRHS(self, freq):
"""
:param float freq: Frequency
:rtype: numpy.ndarray (nE, nTx)
:rtype: numpy.ndarray (nE, nSrc)
:return: RHS
"""
j_s = getSource(self,freq)
rhs = -1j*omega(freq)*j_s
S_m, S_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MeMuI = self.MeMuI
RHS = C * (MeMuI * S_m) - 1j * omega(freq) * S_e
if self._makeASymmetric is True:
MfSigi = self.MfSigmai
return MfSigi.T*rhs
return rhs
MfRho = self.MfRho
return MfRho.T*RHS
def calcFields(self, sol, freq, fieldType, adjoint=False):
j = sol
if fieldType == 'j':
return j
elif fieldType == 'h':
MeMuI = self.MeMuI
C = self.mesh.edgeCurl
MfSigi = self.MfSigmai
if not adjoint:
h = -(1./(1j*omega(freq))) * MeMuI * ( C.T * ( MfSigi * j ) )
return RHS
def getRHSDeriv_m(self, src, v, adjoint=False):
C = self.mesh.edgeCurl
MeMuI = self.MeMuI
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint)
if adjoint:
if self._makeASymmetric:
MfRho = self.MfRho
v = MfRho*v
S_mDerivv = S_mDeriv(MeMuI.T * (C.T * v))
S_eDerivv = S_eDeriv(v)
if S_mDerivv is not None and S_eDerivv is not None:
return S_mDerivv - 1j*omega(freq)*S_eDerivv
elif S_mDerivv is not None:
return S_mDerivv
elif S_eDerivv is not None:
return - 1j*omega(freq)*S_eDerivv
else:
h = -(1./(1j*omega(freq))) * MfSigi.T * ( C * ( MeMuI.T * j ) )
return h
raise NotImplementedError('fieldType "%s" is not implemented.' % fieldType)
return None
else:
S_mDerivv, S_eDerivv = S_mDeriv(v), S_eDeriv(v)
def calcFieldsDeriv(self, sol, freq, fieldType, v, adjoint=False):
j = sol
if fieldType == 'j':
return None
elif fieldType == 'h':
MeMuI = self.MeMuI
C = self.mesh.edgeCurl
sig = self.curModel.transform
sigi = 1/sig
dsig_dm = self.curModel.transformDeriv
dsigi_dsig = -Utils.sdiag(sigi)**2
dMf_dsigi = self.mesh.getFaceInnerProductDeriv(sigi)(j)
sigi = self.MfSigmai
if not adjoint:
return -(1./(1j*omega(freq))) * MeMuI * ( C.T * ( dMf_dsigi * ( dsigi_dsig * ( dsig_dm * v ) ) ) )
if S_mDerivv is not None and S_eDerivv is not None:
RHSDeriv = C * (MeMuI * S_mDerivv) - 1j * omega(freq) * S_eDerivv
elif S_mDerivv is not None:
RHSDeriv = C * (MeMuI * S_mDerivv)
elif S_eDerivv is not None:
RHSDeriv = - 1j * omega(freq) * S_eDerivv
else:
return -(1./(1j*omega(freq))) * dsig_dm.T * ( dsigi_dsig.T * ( dMf_dsigi.T * ( C * ( MeMuI.T * v ) ) ) )
raise NotImplementedError('fieldType "%s" is not implemented.' % fieldType)
return None
if self._makeASymmetric:
MfRho = self.MfRho
return MfRho.T * RHSDeriv
return RHSDeriv
# Solving for h! - using primary- secondary approach
class ProblemFDEM_h(BaseFDEMProblem):
"""
Using the H-J formulation of Maxwell's equations
@@ -545,11 +528,12 @@ class ProblemFDEM_h(BaseFDEMProblem):
"""
solType = 'h'
storeTheseFields = ['j','h']
_fieldType = 'h'
_eqLocs = 'EF'
fieldsPair = FieldsFDEM_h
def __init__(self, model, **kwargs):
BaseFDEMProblem.__init__(self, model, **kwargs)
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
def getA(self, freq):
"""
@@ -559,47 +543,64 @@ class ProblemFDEM_h(BaseFDEMProblem):
"""
MeMu = self.MeMu
MfSigi = self.MfSigmai
MfRho = self.MfRho
C = self.mesh.edgeCurl
return C.T * MfSigi * C + 1j*omega(freq)*MeMu
return C.T * MfRho * C + 1j*omega(freq)*MeMu
def getADeriv(self, freq, u, v, adjoint=False):
def getADeriv_m(self, freq, u, v, adjoint=False):
MeMu = self.MeMu
C = self.mesh.edgeCurl
sig = self.curModel.transform
sigi = 1/sig
dsig_dm = self.curModel.transformDeriv
dsigi_dsig = -Utils.sdiag(sigi)**2
dMf_dsigi = self.mesh.getFaceInnerProductDeriv(sigi)(C*u)
MfRhoDeriv_m = self.MfRhoDeriv(C*u)
if adjoint:
return (dsig_dm.T * (dsigi_dsig.T * (dMf_dsigi.T * (C * v))))
return (C.T * (dMf_dsigi * (dsigi_dsig * (dsig_dm * v))))
return MfRhoDeriv_m.T * (C * v)
return C.T * (MfRhoDeriv_m * v)
def getRHS(self, freq):
"""
:param float freq: Frequency
:rtype: numpy.ndarray (nE, nTx)
:rtype: numpy.ndarray (nE, nSrc)
:return: RHS
"""
b_0 = getSource(self,freq)
return -1j*omega(freq)*b_0
def calcFields(self, sol, freq, fieldType, adjoint=False):
h = sol
if fieldType == 'j':
C = self.mesh.edgeCurl
if adjoint:
return C.T*h
return C*h
elif fieldType == 'h':
return h
raise NotImplementedError('fieldType "%s" is not implemented.' % fieldType)
def calcFieldsDeriv(self, sol, freq, fieldType, v, adjoint=False):
return None
S_m, S_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MfRho = self.MfRho
RHS = S_m + C.T * ( MfRho * S_e )
return RHS
def getRHSDeriv_m(self, src, v, adjoint=False):
_, S_e = src.eval(self)
C = self.mesh.edgeCurl
MfRho = self.MfRho
RHSDeriv = None
if S_e is not None:
MfRhoDeriv = self.MfRhoDeriv(S_e)
if not adjoint:
RHSDeriv = C.T * (MfRhoDeriv * v)
elif adjoint:
RHSDeriv = MfRhoDeriv.T * (C * v)
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint)
S_mDeriv = S_mDeriv(v)
S_eDeriv = S_eDeriv(v)
if S_mDeriv is not None:
if RHSDeriv is not None:
RHSDeriv += S_mDeriv(v)
else:
RHSDeriv = S_mDeriv(v)
if S_eDeriv is not None:
if RHSDeriv is not None:
RHSDeriv += C.T * (MfRho * S_e)
else:
RHSDeriv = C.T * (MfRho * S_e)
return RHSDeriv
+373
View File
@@ -0,0 +1,373 @@
from SimPEG import Survey, Problem, Utils, np, sp
from simpegEM.Utils.EMUtils import omega
class FieldsFDEM(Problem.Fields):
"""Fancy Field Storage for a FDEM survey."""
knownFields = {}
dtype = complex
class FieldsFDEM_e(FieldsFDEM):
knownFields = {'eSolution':'E'}
aliasFields = {
'e' : ['eSolution','E','_e'],
'ePrimary' : ['eSolution','E','_ePrimary'],
'eSecondary' : ['eSolution','E','_eSecondary'],
'b' : ['eSolution','F','_b'],
'bPrimary' : ['eSolution','F','_bPrimary'],
'bSecondary' : ['eSolution','F','_bSecondary']
}
def __init__(self,mesh,survey,**kwargs):
FieldsFDEM.__init__(self,mesh,survey,**kwargs)
def startup(self):
self.prob = self.survey.prob
self._edgeCurl = self.survey.prob.mesh.edgeCurl
def _ePrimary(self, eSolution, srcList):
ePrimary = np.zeros_like(eSolution)
for i, src in enumerate(srcList):
ep = src.ePrimary(self.prob)
if ep is not None:
ePrimary[:,i] = ep
return ePrimary
def _eSecondary(self, eSolution, srcList):
return eSolution
def _e(self, eSolution, srcList):
return self._ePrimary(eSolution,srcList) + self._eSecondary(eSolution,srcList)
def _eDeriv_u(self, src, v, adjoint = False):
return None
def _eDeriv_m(self, src, v, adjoint = False):
# assuming primary does not depend on the model
return None
def _bPrimary(self, eSolution, srcList):
bPrimary = np.zeros([self._edgeCurl.shape[0],eSolution.shape[1]],dtype = complex)
for i, src in enumerate(srcList):
bp = src.bPrimary(self.prob)
if bp is not None:
bPrimary[:,i] += bp
return bPrimary
def _bSecondary(self, eSolution, srcList):
C = self._edgeCurl
b = (C * eSolution)
for i, src in enumerate(srcList):
b[:,i] *= - 1./(1j*omega(src.freq))
S_m, _ = src.eval(self.prob)
if S_m is not None:
b[:,i] += 1./(1j*omega(src.freq)) * S_m
return b
def _bSecondaryDeriv_u(self, src, v, adjoint = False):
C = self._edgeCurl
if adjoint:
return - 1./(1j*omega(src.freq)) * (C.T * v)
return - 1./(1j*omega(src.freq)) * (C * v)
def _bSecondaryDeriv_m(self, src, v, adjoint = False):
S_mDeriv, _ = src.evalDeriv(self.prob, adjoint)
S_mDeriv = S_mDeriv(v)
if S_mDeriv is not None:
return 1./(1j * omega(src.freq)) * S_mDeriv
return None
def _b(self, eSolution, srcList):
return self._bPrimary(eSolution, srcList) + self._bSecondary(eSolution, srcList)
def _bDeriv_u(self, src, v, adjoint=False):
# Primary does not depend on u
return self._bSecondaryDeriv_u(src, v, adjoint)
def _bDeriv_m(self, src, v, adjoint=False):
# Assuming the primary does not depend on the model
return self._bSecondaryDeriv_m(src, v, adjoint)
class FieldsFDEM_b(FieldsFDEM):
knownFields = {'bSolution':'F'}
aliasFields = {
'b' : ['bSolution','F','_b'],
'bPrimary' : ['bSolution','F','_bPrimary'],
'bSecondary' : ['bSolution','F','_bSecondary'],
'e' : ['bSolution','E','_e'],
'ePrimary' : ['bSolution','E','_ePrimary'],
'eSecondary' : ['bSolution','E','_eSecondary'],
}
def __init__(self,mesh,survey,**kwargs):
FieldsFDEM.__init__(self,mesh,survey,**kwargs)
def startup(self):
self.prob = self.survey.prob
self._edgeCurl = self.survey.prob.mesh.edgeCurl
self._MeSigmaI = self.survey.prob.MeSigmaI
self._MfMui = self.survey.prob.MfMui
self._MeSigmaIDeriv = self.survey.prob.MeSigmaIDeriv
def _bPrimary(self, bSolution, srcList):
bPrimary = np.zeros_like(bSolution)
for i, src in enumerate(srcList):
bp = src.bPrimary(self.prob)
if bp is not None:
bPrimary[:,i] = bp
return bPrimary
def _bSecondary(self, bSolution, srcList):
return bSolution
def _b(self, bSolution, srcList):
return self._bPrimary(bSolution, srcList) + self._bSecondary(bSolution, srcList)
def _bDeriv_u(self, src, v, adjoint=False):
return None
def _bDeriv_m(self, src, v, adjoint=False):
# assuming primary does not depend on the model
return None
def _ePrimary(self, bSolution, srcList):
ePrimary = np.zeros([self._edgeCurl.shape[1],bSolution.shape[1]],dtype = complex)
for i,src in enumerate(srcList):
ep = src.ePrimary(self.prob)
if ep is not None:
ePrimary[:,i] = ep
return ePrimary
def _eSecondary(self, bSolution, srcList):
e = self._MeSigmaI * ( self._edgeCurl.T * ( self._MfMui * bSolution))
for i,src in enumerate(srcList):
_,S_e = src.eval(self.prob)
if S_e is not None:
e[:,i] += -self._MeSigmaI*S_e
return e
def _eSecondaryDeriv_u(self, src, v, adjoint=False):
if not adjoint:
return self._MeSigmaI * ( self._edgeCurl.T * ( self._MfMui * v) )
else:
return self._MfMui.T * (self._edgeCurl * (self._MeSigmaI.T * v))
def _eSecondaryDeriv_m(self, src, v, adjoint=False):
bSolution = self[[src],'bSolution']
_,S_e = src.eval(self.prob)
w = self._edgeCurl.T * (self._MfMui * bSolution)
if S_e is not None:
w += -Utils.mkvc(S_e,2)
if not adjoint:
de_dm = self._MeSigmaIDeriv(w) * v
elif adjoint:
de_dm = self._MeSigmaIDeriv(w).T * v
_, S_eDeriv = src.evalDeriv(self.prob, adjoint)
Se_Deriv = S_eDeriv(v)
if Se_Deriv is not None:
de_dm += -self._MeSigmaI * Se_Deriv
return de_dm
def _e(self, bSolution, srcList):
return self._ePrimary(bSolution, srcList) + self._eSecondary(bSolution, srcList)
def _eDeriv_u(self, src, v, adjoint=False):
return self._eSecondaryDeriv_u(src, v, adjoint)
def _eDeriv_m(self, src, v, adjoint=False):
# assuming primary doesn't depend on model
return self._eSecondaryDeriv_m(src, v, adjoint)
class FieldsFDEM_j(FieldsFDEM):
knownFields = {'jSolution':'F'}
aliasFields = {
'j' : ['jSolution','F','_j'],
'jPrimary' : ['jSolution','F','_jPrimary'],
'jSecondary' : ['jSolution','F','_jSecondary'],
'h' : ['jSolution','E','_h'],
'hPrimary' : ['jSolution','E','_hPrimary'],
'hSecondary' : ['jSolution','E','_hSecondary'],
}
def __init__(self,mesh,survey,**kwargs):
FieldsFDEM.__init__(self,mesh,survey,**kwargs)
def startup(self):
self.prob = self.survey.prob
self._edgeCurl = self.survey.prob.mesh.edgeCurl
self._MeMuI = self.survey.prob.MeMuI
self._MfRho = self.survey.prob.MfRho
self._MfRhoDeriv = self.survey.prob.MfRhoDeriv
def _jPrimary(self, jSolution, srcList):
jPrimary = np.zeros_like(jSolution,dtype = complex)
for i, src in enumerate(srcList):
jp = src.jPrimary(self.prob)
if jp is not None:
jPrimary[:,i] += jp
return jPrimary
def _jSecondary(self, jSolution, srcList):
return jSolution
def _j(self, jSolution, srcList):
return self._jPrimary(jSolution, srcList) + self._jSecondary(jSolution, srcList)
def _jDeriv_u(self, src, v, adjoint=False):
return None
def _jDeriv_m(self, src, v, adjoint=False):
# assuming primary does not depend on the model
return None
def _hPrimary(self, jSolution, srcList):
hPrimary = np.zeros([self._edgeCurl.shape[1],jSolution.shape[1]],dtype = complex)
for i, src in enumerate(srcList):
hp = src.hPrimary(self.prob)
if hp is not None:
hPrimary[:,i] = hp
return hPrimary
def _hSecondary(self, jSolution, srcList):
MeMuI = self._MeMuI
C = self._edgeCurl
MfRho = self._MfRho
h = MeMuI * (C.T * (MfRho * jSolution) )
for i, src in enumerate(srcList):
h[:,i] *= -1./(1j*omega(src.freq))
S_m,_ = src.eval(self.prob)
if S_m is not None:
h[:,i] += 1./(1j*omega(src.freq)) * MeMuI * S_m
return h
def _hSecondaryDeriv_u(self, src, v, adjoint=False):
MeMuI = self._MeMuI
C = self._edgeCurl
MfRho = self._MfRho
if not adjoint:
return -1./(1j*omega(src.freq)) * MeMuI * (C.T * (MfRho * v) )
elif adjoint:
return -1./(1j*omega(src.freq)) * MfRho.T * (C * ( MeMuI.T * v))
def _hSecondaryDeriv_m(self, src, v, adjoint=False):
jSolution = self[[src],'jSolution']
MeMuI = self._MeMuI
C = self._edgeCurl
MfRho = self._MfRho
MfRhoDeriv = self._MfRhoDeriv
if not adjoint:
hDeriv_m = -1./(1j*omega(src.freq)) * MeMuI * (C.T * (MfRhoDeriv(jSolution)*v ) )
elif adjoint:
hDeriv_m = -1./(1j*omega(src.freq)) * MfRhoDeriv(jSolution).T * ( C * (MeMuI.T * v ) )
S_mDeriv,_ = src.evalDeriv(self.prob, adjoint)
if not adjoint:
S_mDeriv = S_mDeriv(v)
if S_mDeriv is not None:
hDeriv_m += 1./(1j*omega(src.freq)) * MeMuI * S_mDeriv
elif adjoint:
S_mDeriv = S_mDeriv(MeMuI.T * v)
if S_mDeriv is not None:
hDeriv_m += 1./(1j*omega(src.freq)) * S_mDeriv
return hDeriv_m
def _h(self, jSolution, srcList):
return self._hPrimary(jSolution, srcList) + self._hSecondary(jSolution, srcList)
def _hDeriv_u(self, src, v, adjoint=False):
return self._hSecondaryDeriv_u(src, v, adjoint)
def _hDeriv_m(self, src, v, adjoint=False):
# assuming the primary doesn't depend on the model
return self._hSecondaryDeriv_m(src, v, adjoint)
class FieldsFDEM_h(FieldsFDEM):
knownFields = {'hSolution':'E'}
aliasFields = {
'h' : ['hSolution','E','_h'],
'hPrimary' : ['hSolution','E','_hPrimary'],
'hSecondary' : ['hSolution','E','_hSecondary'],
'j' : ['hSolution','F','_j'],
'jPrimary' : ['hSolution','F','_jPrimary'],
'jSecondary' : ['hSolution','F','_jSecondary']
}
def __init__(self,mesh,survey,**kwargs):
FieldsFDEM.__init__(self,mesh,survey,**kwargs)
def startup(self):
self.prob = self.survey.prob
self._edgeCurl = self.survey.prob.mesh.edgeCurl
self._MeMuI = self.survey.prob.MeMuI
self._MfRho = self.survey.prob.MfRho
def _hPrimary(self, hSolution, srcList):
hPrimary = np.zeros_like(hSolution,dtype = complex)
for i, src in enumerate(srcList):
hp = src.hPrimary(self.prob)
if hp is not None:
hPrimary[:,i] += hp
return hPrimary
def _hSecondary(self, hSolution, srcList):
return hSolution
def _h(self, hSolution, srcList):
return self._hPrimary(hSolution, srcList) + self._hSecondary(hSolution, srcList)
def _hDeriv_u(self, src, v, adjoint=False):
return None
def _hDeriv_m(self, src, v, adjoint=False):
# assuming primary does not depend on the model
return None
def _jPrimary(self, hSolution, srcList):
jPrimary = np.zeros([self._edgeCurl.shape[0], hSolution.shape[1]])
for i, src in enumerate(srcList):
jp = src.jPrimary(self.prob)
if jp is not None:
jPrimary[:,i] = jp
return jPrimary
def _jSecondary(self, hSolution, srcList):
j = self._edgeCurl*hSolution
for i, src in enumerate(srcList):
_,S_e = src.eval(self.prob)
if S_e is not None:
j[:,i] += -S_e
return j
def _jSecondaryDeriv_u(self, src, v, adjoint=False):
if not adjoint:
return self._edgeCurl*v
elif adjoint:
return self._edgeCurl.T*v
def _jSecondaryDeriv_m(self, src, v, adjoint=False):
_,S_eDeriv = src.evalDeriv(self.prob, adjoint)
S_eDeriv = S_eDeriv(v)
if S_eDeriv is not None:
return -S_eDeriv
return None
def _j(self, hSolution, srcList):
return self._jPrimary(hSolution, srcList) + self._jSecondary(hSolution, srcList)
def _jDeriv_u(self, src, v, adjoint=False):
return self._jSecondaryDeriv_u(src,v,adjoint)
def _jDeriv_m(self, src, v, adjoint=False):
# assuming the primary does not depend on the model
return self._jSecondaryDeriv_m(src,v,adjoint)
+324 -32
View File
@@ -1,4 +1,11 @@
from SimPEG import Survey, Problem, Utils, np, sp
from simpegEM.Utils import SrcUtils
from simpegEM.Utils.EMUtils import omega, e_from_j, j_from_e, b_from_h, h_from_b
from scipy.constants import mu_0
####################################################
# Receivers
####################################################
class RxFDEM(Survey.BaseRx):
@@ -51,15 +58,15 @@ class RxFDEM(Survey.BaseRx):
"""Component projection (real/imag)"""
return self.knownRxTypes[self.rxType][2]
def projectFields(self, tx, mesh, u):
def projectFields(self, src, mesh, u):
P = self.getP(mesh)
u_part_complex = u[tx, self.projField]
u_part_complex = u[src, self.projField]
# get the real or imag component
real_or_imag = self.projComp
u_part = getattr(u_part_complex, real_or_imag)
return P*u_part
def projectFieldsDeriv(self, tx, mesh, u, v, adjoint=False):
def projectFieldsDeriv(self, src, mesh, u, v, adjoint=False):
P = self.getP(mesh)
if not adjoint:
@@ -80,45 +87,330 @@ class RxFDEM(Survey.BaseRx):
return Pv
class TxFDEM(Survey.BaseTx):
freq = None #: Frequency (float)
####################################################
# Sources
####################################################
class SrcFDEM(Survey.BaseSrc):
freq = None
rxPair = RxFDEM
knownTxTypes = ['VMD', 'VMD_B', 'CircularLoop']
def eval(self, prob):
S_m = self.S_m(prob)
S_e = self.S_e(prob)
return S_m, S_e
radius = None
def evalDeriv(self, prob, v, adjoint=False):
return lambda v: self.S_mDeriv(prob,v,adjoint), lambda v: self.S_eDeriv(prob,v,adjoint)
def __init__(self, loc, txType, freq, rxList):
def bPrimary(self, prob):
return None
def hPrimary(self, prob):
return None
def ePrimary(self, prob):
return None
def jPrimary(self, prob):
return None
def S_m(self, prob):
return None
def S_e(self, prob):
return None
def S_mDeriv(self, prob, v, adjoint = False):
return None
def S_eDeriv(self, prob, v, adjoint = False):
return None
class SrcFDEM_RawVec_e(SrcFDEM):
"""
RawVec electric source. It is defined by the user provided vector S_e
:param numpy.array S_e: electric source term
:param float freq: frequency
:param rxList: receiver list
"""
def __init__(self, rxList, freq, S_e):
self._S_e = np.array(S_e,dtype=complex)
self.freq = float(freq)
Survey.BaseTx.__init__(self, loc, txType, rxList)
SrcFDEM.__init__(self, rxList)
def S_e(self, prob):
return self._S_e
class SrcFDEM_RawVec_m(SrcFDEM):
"""
RawVec magnetic source. It is defined by the user provided vector S_m
class FieldsFDEM(Problem.Fields):
"""Fancy Field Storage for a FDEM survey."""
knownFields = {'b': 'F', 'e': 'E', 'j': 'F', 'h': 'E'}
dtype = complex
:param numpy.array S_m: magnetic source term
:param float freq: frequency
:param rxList: receiver list
"""
def __init__(self, rxList, freq, S_m):
self._S_m = np.array(S_m,dtype=complex)
self.freq = float(freq)
SrcFDEM.__init__(self, rxList)
def S_m(self, prob):
return self._S_m
class SrcFDEM_RawVec(SrcFDEM):
"""
RawVec source. It is defined by the user provided vectors S_m, S_e
:param numpy.array S_m: magnetic source term
:param numpy.array S_e: electric source term
:param float freq: frequency
:param rxList: receiver list
"""
def __init__(self, rxList, freq, S_m, S_e):
self._S_m = np.array(S_m,dtype=complex)
self._S_e = np.array(S_e,dtype=complex)
self.freq = float(freq)
SrcFDEM.__init__(self, rxList)
def S_m(self, prob):
return self._S_m
def S_e(self, prob):
return self._S_e
class SrcFDEM_MagDipole(SrcFDEM):
#TODO: right now, orientation doesn't actually do anything! The methods in SrcUtils should take care of that
def __init__(self, rxList, freq, loc, orientation='Z', moment=1., mu = mu_0):
self.freq = float(freq)
self.loc = loc
self.orientation = orientation
self.moment = moment
self.mu = mu
SrcFDEM.__init__(self, rxList)
def bPrimary(self, prob):
eqLocs = prob._eqLocs
if eqLocs is 'FE':
gridX = prob.mesh.gridEx
gridY = prob.mesh.gridEy
gridZ = prob.mesh.gridEz
C = prob.mesh.edgeCurl
elif eqLocs is 'EF':
gridX = prob.mesh.gridFx
gridY = prob.mesh.gridFy
gridZ = prob.mesh.gridFz
C = prob.mesh.edgeCurl.T
if prob.mesh._meshType is 'CYL':
if not prob.mesh.isSymmetric:
# TODO ?
raise NotImplementedError('Non-symmetric cyl mesh not implemented yet!')
a = SrcUtils.MagneticDipoleVectorPotential(self.loc, gridY, 'y', mu=self.mu, moment=self.moment)
else:
srcfct = SrcUtils.MagneticDipoleVectorPotential
ax = srcfct(self.loc, gridX, 'x', mu=self.mu, moment=self.moment)
ay = srcfct(self.loc, gridY, 'y', mu=self.mu, moment=self.moment)
az = srcfct(self.loc, gridZ, 'z', mu=self.mu, moment=self.moment)
a = np.concatenate((ax, ay, az))
return C*a
def hPrimary(self, prob):
b = self.bPrimary(prob)
return h_from_b(prob,b)
def S_m(self, prob):
b_p = self.bPrimary(prob)
return -1j*omega(self.freq)*b_p
def S_e(self, prob):
if all(np.r_[self.mu] == np.r_[prob.curModel.mu]):
return None
else:
eqLocs = prob._eqLocs
if eqLocs is 'FE':
mui_s = prob.curModel.mui - 1./self.mu
MMui_s = prob.mesh.getFaceInnerProduct(mui_s)
C = prob.mesh.edgeCurl
elif eqLocs is 'EF':
mu_s = prob.curModel.mu - self.mu
MMui_s = prob.mesh.getEdgeInnerProduct(mu_s,invMat=True)
C = prob.mesh.edgeCurl.T
return -C.T * (MMui_s * self.bPrimary(prob))
class SrcFDEM_MagDipole_Bfield(SrcFDEM):
#TODO: right now, orientation doesn't actually do anything! The methods in SrcUtils should take care of that
#TODO: neither does moment
def __init__(self, rxList, freq, loc, orientation='Z', moment=1., mu = mu_0):
self.freq = float(freq)
self.loc = loc
self.orientation = orientation
self.moment = moment
self.mu = mu
SrcFDEM.__init__(self, rxList)
def bPrimary(self, prob):
eqLocs = prob._eqLocs
if eqLocs is 'FE':
gridX = prob.mesh.gridFx
gridY = prob.mesh.gridFy
gridZ = prob.mesh.gridFz
C = prob.mesh.edgeCurl
elif eqLocs is 'EF':
gridX = prob.mesh.gridEx
gridY = prob.mesh.gridEy
gridZ = prob.mesh.gridEz
C = prob.mesh.edgeCurl.T
srcfct = SrcUtils.MagneticDipoleFields
if prob.mesh._meshType is 'CYL':
if not prob.mesh.isSymmetric:
# TODO ?
raise NotImplementedError('Non-symmetric cyl mesh not implemented yet!')
bx = srcfct(self.loc, gridX, 'x', mu=self.mu, moment=self.moment)
bz = srcfct(self.loc, gridZ, 'z', mu=self.mu, moment=self.moment)
b = np.concatenate((bx,bz))
else:
bx = srcfct(self.loc, gridX, 'x', mu=self.mu, moment=self.moment)
by = srcfct(self.loc, gridY, 'y', mu=self.mu, moment=self.moment)
bz = srcfct(self.loc, gridZ, 'z', mu=self.mu, moment=self.moment)
b = np.concatenate((bx,by,bz))
return b
def hPrimary(self, prob):
b = self.bPrimary(prob)
return h_from_b(prob, b)
def S_m(self, prob):
b = self.bPrimary(prob)
return -1j*omega(self.freq)*b
def S_e(self, prob):
if all(np.r_[self.mu] == np.r_[prob.curModel.mu]):
return None
else:
eqLocs = prob._eqLocs
if eqLocs is 'FE':
mui_s = prob.curModel.mui - 1./self.mu
MMui_s = prob.mesh.getFaceInnerProduct(mui_s)
C = prob.mesh.edgeCurl
elif eqLocs is 'EF':
mu_s = prob.curModel.mu - self.mu
MMui_s = prob.mesh.getEdgeInnerProduct(mu_s,invMat=True)
C = prob.mesh.edgeCurl.T
return -C.T * (MMui_s * self.bPrimary(prob))
class SrcFDEM_CircularLoop(SrcFDEM):
#TODO: right now, orientation doesn't actually do anything! The methods in SrcUtils should take care of that
def __init__(self, rxList, freq, loc, orientation='Z', radius = 1., mu=mu_0):
self.freq = float(freq)
self.orientation = orientation
self.radius = radius
self.mu = mu
self.loc = loc
SrcFDEM.__init__(self, rxList)
def bPrimary(self, prob):
eqLocs = prob._eqLocs
if eqLocs is 'FE':
gridX = prob.mesh.gridEx
gridY = prob.mesh.gridEy
gridZ = prob.mesh.gridEz
C = prob.mesh.edgeCurl
elif eqLocs is 'EF':
gridX = prob.mesh.gridFx
gridY = prob.mesh.gridFy
gridZ = prob.mesh.gridFz
C = prob.mesh.edgeCurl.T
if prob.mesh._meshType is 'CYL':
if not prob.mesh.isSymmetric:
# TODO ?
raise NotImplementedError('Non-symmetric cyl mesh not implemented yet!')
a = SrcUtils.MagneticDipoleVectorPotential(self.loc, gridY, 'y', moment=self.radius, mu=self.mu)
else:
srcfct = SrcUtils.MagneticDipoleVectorPotential
ax = srcfct(self.loc, gridX, 'x', self.radius, mu=self.mu)
ay = srcfct(self.loc, gridY, 'y', self.radius, mu=self.mu)
az = srcfct(self.loc, gridZ, 'z', self.radius, mu=self.mu)
a = np.concatenate((ax, ay, az))
return C*a
def hPrimary(self, prob):
b = self.bPrimary(prob)
return 1./self.mu*b
def S_m(self, prob):
b = self.bPrimary(prob)
return -1j*omega(self.freq)*b
def S_e(self, prob):
if all(np.r_[self.mu] == np.r_[prob.curModel.mu]):
return None
else:
eqLocs = prob._eqLocs
if eqLocs is 'FE':
mui_s = prob.curModel.mui - 1./self.mu
MMui_s = prob.mesh.getFaceInnerProduct(mui_s)
C = prob.mesh.edgeCurl
elif eqLocs is 'EF':
mu_s = prob.curModel.mu - self.mu
MMui_s = prob.mesh.getEdgeInnerProduct(mu_s,invMat=True)
C = prob.mesh.edgeCurl.T
return -C.T * (MMui_s * self.bPrimary(prob))
####################################################
# Survey
####################################################
class SurveyFDEM(Survey.BaseSurvey):
"""
docstring for SurveyFDEM
"""
txPair = TxFDEM
srcPair = SrcFDEM
def __init__(self, txList, **kwargs):
def __init__(self, srcList, **kwargs):
# Sort these by frequency
self.txList = txList
self.srcList = srcList
Survey.BaseSurvey.__init__(self, **kwargs)
_freqDict = {}
for tx in txList:
if tx.freq not in _freqDict:
_freqDict[tx.freq] = []
_freqDict[tx.freq] += [tx]
for src in srcList:
if src.freq not in _freqDict:
_freqDict[src.freq] = []
_freqDict[src.freq] += [src]
self._freqDict = _freqDict
self._freqs = sorted([f for f in self._freqDict])
@@ -134,24 +426,24 @@ class SurveyFDEM(Survey.BaseSurvey):
return len(self._freqDict)
@property
def nTxByFreq(self):
if getattr(self, '_nTxByFreq', None) is None:
self._nTxByFreq = {}
def nSrcByFreq(self):
if getattr(self, '_nSrcByFreq', None) is None:
self._nSrcByFreq = {}
for freq in self.freqs:
self._nTxByFreq[freq] = len(self.getTransmitters(freq))
return self._nTxByFreq
self._nSrcByFreq[freq] = len(self.getSrcByFreq(freq))
return self._nSrcByFreq
def getTransmitters(self, freq):
"""Returns the transmitters associated with a specific frequency."""
def getSrcByFreq(self, freq):
"""Returns the sources associated with a specific frequency."""
assert freq in self._freqDict, "The requested frequency is not in this survey."
return self._freqDict[freq]
def projectFields(self, u):
data = Survey.Data(self)
for tx in self.txList:
for rx in tx.rxList:
data[tx, rx] = rx.projectFields(tx, self.mesh, u)
for src in self.srcList:
for rx in src.rxList:
data[src, rx] = rx.projectFields(src, self.mesh, u)
return data
def projectFieldsDeriv(self, u):
raise Exception('Use Transmitters to project fields deriv.')
raise Exception('Use Sources to project fields deriv.')
+2 -1
View File
@@ -1,2 +1,3 @@
from SurveyFDEM import *
from FDEM import ProblemFDEM_e, ProblemFDEM_b, ProblemFDEM_j, ProblemFDEM_h
from FDEM import BaseFDEMProblem, ProblemFDEM_e, ProblemFDEM_b, ProblemFDEM_j, ProblemFDEM_h
from FieldsFDEM import *
-101
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@@ -1,101 +0,0 @@
from SimPEG import *
from scipy.special import ellipk, ellipe
def MagneticLoopVectorPotential(txLoc, obsLoc, component, radius):
"""
Calculate the vector potential of horizontal circular loop
at given locations
:param numpy.ndarray txLoc: Location of the transmitter(s) (x, y, z)
:param numpy.ndarray,SimPEG.Mesh obsLoc: Where the potentials will be calculated (x, y, z) or a SimPEG Mesh
:param str,list component: The component to calculate - 'x', 'y', or 'z' if an array, or grid type if mesh, can be a list
:param numpy.ndarray I: Input current of the loop
:param numpy.ndarray radius: radius of the loop
:rtype: numpy.ndarray
:return: The vector potential each dipole at each observation location
"""
if type(component) in [list, tuple]:
out = range(len(component))
for i, comp in enumerate(component):
out[i] = MagneticLoopVectorPotential(txLoc, obsLoc, comp, radius)
return np.concatenate(out)
if isinstance(obsLoc, Mesh.BaseMesh):
mesh = obsLoc
assert component in ['Ex','Ey','Ez','Fx','Fy','Fz'], "Components must be in: ['Ex','Ey','Ez','Fx','Fy','Fz']"
return MagneticLoopVectorPotential(txLoc, getattr(mesh,'grid'+component), component[1], radius)
txLoc = np.atleast_2d(txLoc)
obsLoc = np.atleast_2d(obsLoc)
n = obsLoc.shape[0]
nTx = txLoc.shape[0]
if component=='z':
A = np.zeros((n, nTx))
if nTx ==1:
return A.flatten()
return A
else:
A = np.zeros((n, nTx))
for i in range (nTx):
x = obsLoc[:, 0] - txLoc[i, 0]
y = obsLoc[:, 1] - txLoc[i, 1]
z = obsLoc[:, 2] - txLoc[i, 2]
r = np.sqrt(x**2 + y**2)
m = (4 * radius * r) / ((radius + r)**2 + z**2)
m[m > 1.] = 1.
# m might be slightly larger than 1 due to rounding errors
# but ellipke requires 0 <= m <= 1
K = ellipk(m)
E = ellipe(m)
ind = (r > 0) & (m < 1)
# % 1/r singular at r = 0 and K(m) singular at m = 1
Aphi = np.zeros(n)
# % Common factor is (mu * I) / pi with I = 1 and mu = 4e-7 * pi.
Aphi[ind] = 4e-7 / np.sqrt(m[ind]) * np.sqrt(radius / r[ind]) *((1. - m[ind] / 2.) * K[ind] - E[ind])
if component == 'x':
A[ind, i] = Aphi[ind] * (-y[ind] / r[ind] )
elif component == 'y':
A[ind, i] = Aphi[ind] * ( x[ind] / r[ind] )
else:
raise ValueError('Invalid component')
if nTx == 1:
return A.flatten()
return A
if __name__ == '__main__':
from SimPEG import Mesh
import matplotlib.pyplot as plt
cs = 20
ncx, ncy, ncz = 41, 41, 40
hx = np.ones(ncx)*cs
hy = np.ones(ncy)*cs
hz = np.ones(ncz)*cs
mesh = Mesh.TensorMesh([hx, hy, hz], 'CCC')
txLoc = np.r_[0., 0., 0.]
Ax = MagneticLoopVectorPotential(txLoc, mesh.gridEx, 'x', 200)
Ay = MagneticLoopVectorPotential(txLoc, mesh.gridEy, 'y', 200)
Az = MagneticLoopVectorPotential(txLoc, mesh.gridEz, 'z', 200)
A = np.r_[Ax, Ay, Az]
B0 = mesh.edgeCurl*A
J0 = mesh.edgeCurl.T*B0
# mesh.plotImage(A, vType = 'Ex')
# mesh.plotImage(A, vType = 'Ey')
mesh.plotImage(B0, vType = 'Fx')
mesh.plotImage(B0, vType = 'Fy')
mesh.plotImage(B0, vType = 'Fz')
# # mesh.plotImage(J0, vType = 'Ex')
# mesh.plotImage(J0, vType = 'Ey')
# mesh.plotImage(J0, vType = 'Ez')
plt.show()
-3
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@@ -1,3 +0,0 @@
from magneticDipole import MagneticDipoleVectorPotential
from CircularLoop import MagneticLoopVectorPotential
from magneticDipole import MagneticDipoleFields
-100
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@@ -1,100 +0,0 @@
import numpy as np
from scipy.constants import mu_0, pi
from SimPEG import Mesh
def MagneticDipoleVectorPotential(txLoc, obsLoc, component, dipoleMoment=(0., 0., 1.)):
"""
Calculate the vector potential of a set of magnetic dipoles
at given locations 'ref. <http://en.wikipedia.org/wiki/Dipole#Magnetic_vector_potential>'
:param numpy.ndarray txLoc: Location of the transmitter(s) (x, y, z)
:param numpy.ndarray,SimPEG.Mesh obsLoc: Where the potentials will be calculated (x, y, z) or a SimPEG Mesh
:param str,list component: The component to calculate - 'x', 'y', or 'z' if an array, or grid type if mesh, can be a list
:param numpy.ndarray dipoleMoment: The vector dipole moment
:rtype: numpy.ndarray
:return: The vector potential each dipole at each observation location
"""
if type(component) in [list, tuple]:
out = range(len(component))
for i, comp in enumerate(component):
out[i] = MagneticDipoleVectorPotential(txLoc, obsLoc, comp, dipoleMoment=dipoleMoment)
return np.concatenate(out)
if isinstance(obsLoc, Mesh.BaseMesh):
mesh = obsLoc
assert component in ['Ex','Ey','Ez','Fx','Fy','Fz'], "Components must be in: ['Ex','Ey','Ez','Fx','Fy','Fz']"
return MagneticDipoleVectorPotential(txLoc, getattr(mesh,'grid'+component), component[1], dipoleMoment=dipoleMoment)
if component == 'x':
dimInd = 0
elif component == 'y':
dimInd = 1
elif component == 'z':
dimInd = 2
else:
raise ValueError('Invalid component')
txLoc = np.atleast_2d(txLoc)
obsLoc = np.atleast_2d(obsLoc)
dipoleMoment = np.atleast_2d(dipoleMoment)
nEdges = obsLoc.shape[0]
nTx = txLoc.shape[0]
m = np.array(dipoleMoment).repeat(nEdges, axis=0)
A = np.empty((nEdges, nTx))
for i in range(nTx):
dR = obsLoc - txLoc[i, np.newaxis].repeat(nEdges, axis=0)
mCr = np.cross(m, dR)
r = np.sqrt((dR**2).sum(axis=1))
A[:, i] = +(mu_0/(4*pi)) * mCr[:,dimInd]/(r**3)
if nTx == 1:
return A.flatten()
return A
def MagneticDipoleFields(txLoc, obsLoc, component, dipoleMoment=1.):
"""
Calculate the vector potential of a set of magnetic dipoles
at given locations 'ref. <http://en.wikipedia.org/wiki/Dipole#Magnetic_vector_potential>'
:param numpy.ndarray txLoc: Location of the transmitter(s) (x, y, z)
:param numpy.ndarray obsLoc: Where the potentials will be calculated (x, y, z)
:param str component: The component to calculate - 'x', 'y', or 'z'
:param numpy.ndarray dipoleMoment: The vector dipole moment (vertical)
:rtype: numpy.ndarray
:return: The vector potential each dipole at each observation location
"""
if component=='x':
dimInd = 0
elif component=='y':
dimInd = 1
elif component=='z':
dimInd = 2
else:
raise ValueError('Invalid component')
txLoc = np.atleast_2d(txLoc)
obsLoc = np.atleast_2d(obsLoc)
dipoleMoment = np.atleast_2d(dipoleMoment)
nFaces = obsLoc.shape[0]
nTx = txLoc.shape[0]
m = np.array(dipoleMoment).repeat(nFaces, axis=0)
B = np.empty((nFaces, nTx))
for i in range(nTx):
dR = obsLoc - txLoc[i, np.newaxis].repeat(nFaces, axis=0)
r = np.sqrt((dR**2).sum(axis=1))
if dimInd == 0:
B[:, i] = +(mu_0/(4*pi)) /(r**3) * (3*dR[:,2]*dR[:,0]/r**2)
elif dimInd == 1:
B[:, i] = +(mu_0/(4*pi)) /(r**3) * (3*dR[:,2]*dR[:,1]/r**2)
elif dimInd == 2:
B[:, i] = +(mu_0/(4*pi)) /(r**3) * (3*dR[:,2]**2/r**2-1)
else:
raise Exception("Not Implemented")
if nTx == 1:
return B.flatten()
return B
+8 -8
View File
@@ -1,6 +1,6 @@
from SimPEG import Solver, Problem
from SimPEG.Problem import BaseTimeProblem
from simpegEM import Sources
from simpegEM.Utils import SrcUtils
from scipy.constants import mu_0
from SimPEG.Utils import sdiag, mkvc
from SimPEG import Utils, Mesh
@@ -13,21 +13,21 @@ class FieldsTDEM(Problem.TimeFields):
knownFields = {'b': 'F', 'e': 'E'}
def tovec(self):
nTx, nF, nE = self.survey.nTx, self.mesh.nF, self.mesh.nE
u = np.empty(0 if nTx == 1 else (0, nTx))
nSrc, nF, nE = self.survey.nSrc, self.mesh.nF, self.mesh.nE
u = np.empty((0,nSrc)) #((0,1) if nSrc == 1 else (0, nSrc))
for i in range(self.survey.prob.nT):
if 'b' in self:
b = self[:,'b',i+1]
else:
b = np.zeros(nF if nTx == 1 else (nF, nTx))
b = np.zeros((nF,nSrc)) # if nSrc == 1 else (nF, nSrc))
if 'e' in self:
e = self[:,'e',i+1]
else:
e = np.zeros(nE if nTx == 1 else (nE, nTx))
e = np.zeros((nE,nSrc)) # if nSrc == 1 else (nE, nSrc))
u = np.concatenate((u, b, e))
return Utils.mkvc(u)
return Utils.mkvc(u,nSrc)
class BaseTDEMProblem(BaseTimeProblem, BaseEMProblem):
@@ -42,9 +42,9 @@ class BaseTDEMProblem(BaseTimeProblem, BaseEMProblem):
self.curModel = m
# Create a fields storage object
F = self._FieldsForward_pair(self.mesh, self.survey)
for tx in self.survey.txList:
for src in self.survey.srcList:
# Set the initial conditions
F[tx,:,0] = tx.getInitialFields(self.mesh)
F[src,:,0] = src.getInitialFields(self.mesh)
F = self.forward(m, self.getRHS, F=F)
if self.verbose: print '%s\nDone calculating fields(m)\n%s'%('*'*50,'*'*50)
return F
+45 -31
View File
@@ -1,6 +1,6 @@
from SimPEG import Utils, Survey, np
from SimPEG.Survey import BaseSurvey
from simpegEM import Sources
from simpegEM.Utils import SrcUtils
from BaseTDEM import FieldsTDEM
@@ -51,76 +51,90 @@ class RxTDEM(Survey.BaseTimeRx):
else:
return timeMesh.getInterpolationMat(self.times, self.projTLoc)
def projectFields(self, tx, mesh, timeMesh, u):
def projectFields(self, src, mesh, timeMesh, u):
P = self.getP(mesh, timeMesh)
u_part = Utils.mkvc(u[tx, self.projField, :])
u_part = Utils.mkvc(u[src, self.projField, :])
return P*u_part
def projectFieldsDeriv(self, tx, mesh, timeMesh, u, v, adjoint=False):
def projectFieldsDeriv(self, src, mesh, timeMesh, u, v, adjoint=False):
P = self.getP(mesh, timeMesh)
if not adjoint:
return P * Utils.mkvc(v[tx, self.projField, :])
return P * Utils.mkvc(v[src, self.projField, :])
elif adjoint:
return P.T * v[tx, self]
return P.T * v[src, self]
class TxTDEM(Survey.BaseTx):
class SrcTDEM(Survey.BaseSrc):
rxPair = RxTDEM
radius = None
knownTxTypes = ['VMD_MVP', 'CircularLoop_MVP']
def getInitialFields(self, mesh):
F0 = getattr(self, '_getInitialFields_' + self.txType)(mesh)
F0 = getattr(self, '_getInitialFields_' + self.srcType)(mesh)
return F0
def _getInitialFields_VMD_MVP(self, mesh):
def getJs(self, mesh, time):
return None
class SrcTDEM_VMD_MVP(SrcTDEM):
def __init__(self,rxList,loc):
self.loc = loc
SrcTDEM.__init__(self,rxList)
def getInitialFields(self, mesh):
"""Vertical magnetic dipole, magnetic vector potential"""
if mesh._meshType is 'CYL':
if mesh.isSymmetric:
MVP = Sources.MagneticDipoleVectorPotential(self.loc, mesh, 'Ey')
MVP = SrcUtils.MagneticDipoleVectorPotential(self.loc, mesh, 'Ey')
else:
raise NotImplementedError('Non-symmetric cyl mesh not implemented yet!')
elif mesh._meshType is 'TENSOR':
MVP = Sources.MagneticDipoleVectorPotential(self.loc, mesh, ['Ex','Ey','Ez'])
MVP = SrcUtils.MagneticDipoleVectorPotential(self.loc, mesh, ['Ex','Ey','Ez'])
else:
raise Exception('Unknown mesh for VMD')
return {"b": mesh.edgeCurl*MVP}
def _getInitialFields_CircularLoop_MVP(self, mesh):
class SrcTDEM_CircularLoop_MVP(SrcTDEM):
def __init__(self,rxList,loc):
self.loc = loc
SrcTDEM.__init__(self,rxList)
def getInitialFields_(self, mesh):
"""Circular Loop, magnetic vector potential"""
if mesh._meshType is 'CYL':
if mesh.isSymmetric:
MVP = Sources.MagneticLoopVectorPotential(self.loc, mesh, 'Ey', self.radius)
MVP = SrcUtils.MagneticLoopVectorPotential(self.loc, mesh, 'Ey', self.radius)
else:
raise NotImplementedError('Non-symmetric cyl mesh not implemented yet!')
elif mesh._meshType is 'TENSOR':
MVP = Sources.MagneticLoopVectorPotential(self.loc, mesh, ['Ex','Ey','Ez'], self.radius)
MVP = SrcUtils.MagneticLoopVectorPotential(self.loc, mesh, ['Ex','Ey','Ez'], self.radius)
else:
raise Exception('Unknown mesh for CircularLoop')
return {"b": mesh.edgeCurl*MVP}
def getJs(self, mesh, time):
return None
class SurveyTDEM(Survey.BaseSurvey):
"""
docstring for SurveyTDEM
"""
txPair = TxTDEM
srcPair = SrcTDEM
def __init__(self, txList, **kwargs):
def __init__(self, srcList, **kwargs):
# Sort these by frequency
self.txList = txList
self.srcList = srcList
Survey.BaseSurvey.__init__(self, **kwargs)
def projectFields(self, u):
data = Survey.Data(self)
for tx in self.txList:
for rx in tx.rxList:
data[tx, rx] = rx.projectFields(tx, self.mesh, self.prob.timeMesh, u)
for src in self.srcList:
for rx in src.rxList:
data[src, rx] = rx.projectFields(src, self.mesh, self.prob.timeMesh, u)
return data
def projectFieldsDeriv(self, u, v=None, adjoint=False):
@@ -128,20 +142,20 @@ class SurveyTDEM(Survey.BaseSurvey):
if not adjoint:
data = Survey.Data(self)
for tx in self.txList:
for rx in tx.rxList:
data[tx, rx] = rx.projectFieldsDeriv(tx, self.mesh, self.prob.timeMesh, u, v)
for src in self.srcList:
for rx in src.rxList:
data[src, rx] = rx.projectFieldsDeriv(src, self.mesh, self.prob.timeMesh, u, v)
return data
else:
f = FieldsTDEM(self.mesh, self)
for tx in self.txList:
for rx in tx.rxList:
Ptv = rx.projectFieldsDeriv(tx, self.mesh, self.prob.timeMesh, u, v, adjoint=True)
for src in self.srcList:
for rx in src.rxList:
Ptv = rx.projectFieldsDeriv(src, self.mesh, self.prob.timeMesh, u, v, adjoint=True)
Ptv = Ptv.reshape((-1, self.prob.timeMesh.nN), order='F')
if rx.projField not in f: # first time we are projecting
f[tx, rx.projField, :] = Ptv
f[src, rx.projField, :] = Ptv
else: # there are already fields, so let's add to them!
f[tx, rx.projField, :] += Ptv
f[src, rx.projField, :] += Ptv
return f
+26 -21
View File
@@ -14,7 +14,7 @@ class FieldsTDEM_e_from_b(FieldsTDEM):
self.edgeCurlT = self.survey.prob.mesh.edgeCurl.T
self.MfMui = self.survey.prob.MfMui
def e_from_b(self, b, txInd, timeInd):
def e_from_b(self, b, srcInd, timeInd):
# TODO: implement non-zero js
return self.MeSigmaI*(self.edgeCurlT*(self.MfMui*b))
@@ -32,10 +32,10 @@ class FieldsTDEM_e_from_b_Ah(FieldsTDEM):
self.edgeCurlT = self.survey.prob.mesh.edgeCurl.T
self.MfMui = self.survey.prob.MfMui
def e_from_b(self, y_b, txInd, tInd):
def e_from_b(self, y_b, srcInd, tInd):
y_e = self.MeSigmaI*(self.edgeCurlT*(self.MfMui*y_b))
if 'e' in self.p:
y_e = y_e - self.MeSigmaI*self.p[txInd,'e',tInd]
y_e = y_e - self.MeSigmaI*self.p[srcInd,'e',tInd]
return y_e
class ProblemTDEM_b(BaseTDEMProblem):
@@ -73,8 +73,10 @@ class ProblemTDEM_b(BaseTDEMProblem):
def getRHS(self, tInd, F):
dt = self.timeSteps[tInd]
B_n = np.c_[[F[tx,'b',tInd] for tx in self.survey.txList]].T
RHS = (1.0/dt)*self.MfMui*B_n
B_n = np.c_[[F[src,'b',tInd] for src in self.survey.srcList]].T
if B_n.shape[0] is not 1:
raise NotImplementedError('getRHS not implemented for this shape of B_n')
RHS = (1.0/dt)*self.MfMui*B_n[0,:,:] #TODO: This is a hack
return RHS
####################################################
@@ -95,7 +97,7 @@ class ProblemTDEM_b(BaseTDEMProblem):
u = self.fields(m)
self.curModel = m
# Note: Fields has shape (nF/E, nTx, nT+1)
# Note: Fields has shape (nF/E, nSrc, nT+1)
# However, p will only really fill (:,:,1:nT+1)
# meaning the 'initial fields' are zero (:,:,0)
p = FieldsTDEM(self.mesh, self.survey)
@@ -106,15 +108,17 @@ class ProblemTDEM_b(BaseTDEMProblem):
# fake initial 'e' fields
p[:, 'e', 0] = 0.0
dMdsig = self.mesh.getEdgeInnerProductDeriv(self.curModel.transform)
dsigdm_x_v = self.curModel.transformDeriv*vec
dMdsig = self.MeSigmaDeriv
# self.mesh.getEdgeInnerProductDeriv(self.curModel.transform)
# dsigdm_x_v = self.curModel.sigmaDeriv*vec
# dsigdm_x_v = self.curModel.transformDeriv*vec
for i in range(1,self.nT+1):
# TODO: G[1] may be dependent on the model
# for a galvanic source (deriv of the dc problem)
#
# Do multiplication for all tx in self.survey.txList
for tx in self.survey.txList:
p[tx, 'e', i] = - dMdsig(u[tx,'e',i]) * dsigdm_x_v
# Do multiplication for all src in self.survey.srcList
for src in self.survey.srcList:
p[src, 'e', i] = - dMdsig(u[src,'e',i]) * vec
return p
def Gtvec(self, m, vec, u=None):
@@ -130,20 +134,21 @@ class ProblemTDEM_b(BaseTDEMProblem):
if u is None:
u = self.fields(m)
self.curModel = m
dMdsig = self.mesh.getEdgeInnerProductDeriv(self.curModel.transform)
dsigdm = self.curModel.transformDeriv
# dMdsig = self.mesh.getEdgeInnerProductDeriv(self.curModel.transform)
# dsigdm = self.curModel.transformDeriv
MeSigmaDeriv = self.MeSigmaDeriv
nTx = self.survey.nTx
nSrc = self.survey.nSrc
VUs = None
# Here we can do internal multiplications of Gt*v and then multiply by MsigDeriv.T in one go.
for i in range(1,self.nT+1):
vu = None
for tx in self.survey.txList:
vutx = dMdsig(u[tx,'e',i]).T * vec[tx,'e',i]
vu = vutx if vu is None else vu + vutx
for src in self.survey.srcList:
vusrc = MeSigmaDeriv(u[src,'e',i]).T * vec[src,'e',i]
vu = vusrc if vu is None else vu + vusrc
VUs = vu if VUs is None else VUs + vu
p = -dsigdm.T*VUs
return p
# p = -dsigdm.T*VUs
return -VUs
def solveAh(self, m, p):
"""
@@ -241,8 +246,8 @@ class ProblemTDEM_b(BaseTDEMProblem):
# 1 (tInd=1 uses fields 2 and 3)
def AhtRHS(tInd, y):
nTx, nF = self.survey.nTx, self.mesh.nF
rhs = np.zeros(nF if nTx == 1 else (nF, nTx))
nSrc, nF = self.survey.nSrc, self.mesh.nF
rhs = np.zeros((nF,1) if nSrc == 1 else (nF, nSrc))
if 'e' in p:
rhs += self.MfMui*(self.mesh.edgeCurl*(self.MeSigmaI*p[:,'e',tInd+1]))
+1 -1
View File
@@ -1,3 +1,3 @@
from SurveyTDEM import SurveyTDEM, RxTDEM, TxTDEM
from SurveyTDEM import * #SurveyTDEM, RxTDEM, SrcTDEM
from BaseTDEM import BaseTDEMProblem, FieldsTDEM
from TDEM_b import ProblemTDEM_b
+339 -269
View File
@@ -1,9 +1,17 @@
import unittest
from SimPEG import *
import simpegEM as EM
import sys
import sys
from scipy.constants import mu_0
testDerivs = True
testCrossCheck = True
testAdjoint = True
testEB = True
testHJ = True
verbose = False
TOL = 1e-4
FLR = 1e-20 # "zero", so if residual below this --> pass regardless of order
CONDUCTIVITY = 1e1
@@ -11,6 +19,9 @@ MU = mu_0
freq = 1e-1
addrandoms = True
SrcType = 'MagDipole' #or 'MAgDipole_Bfield', 'CircularLoop', 'RawVec'
def getProblem(fdemType, comp):
cs = 5.
ncx, ncy, ncz = 6, 6, 6
@@ -22,22 +33,64 @@ def getProblem(fdemType, comp):
mapping = Maps.ExpMap(mesh)
x = np.array([np.linspace(-30,-15,3),np.linspace(15,30,3)]) #don't sample right by the transmitter
x = np.array([np.linspace(-30,-15,3),np.linspace(15,30,3)]) #don't sample right by the source
XYZ = Utils.ndgrid(x,x,np.r_[0.])
Rx0 = EM.FDEM.RxFDEM(XYZ, comp)
Tx0 = EM.FDEM.TxFDEM(np.r_[0.,0.,0.], 'VMD', freq, [Rx0])
survey = EM.FDEM.SurveyFDEM([Tx0])
if SrcType is 'MagDipole':
Src = EM.FDEM.SrcFDEM_MagDipole([Rx0], freq=freq, loc=np.r_[0.,0.,0.])
elif SrcType is 'MagDipole_Bfield':
Src = EM.FDEM.SrcFDEM_MagDipole_Bfield([Rx0], freq=freq, loc=np.r_[0.,0.,0.])
elif SrcType is 'CircularLoop':
Src2 = EM.FDEM.SrcFDEM_CircularLoop([Rx0], freq=freq, loc=np.r_[0.,0.,0.])
if verbose:
print ' Fetching %s problem' % (fdemType)
if fdemType == 'e':
if SrcType is 'RawVec':
S_m = np.zeros(mesh.nF)
S_e = np.zeros(mesh.nE)
S_m[Utils.closestPoints(mesh,[0.,0.,0.],'Fz') + np.sum(mesh.vnF[:1])] = 1.
S_e[Utils.closestPoints(mesh,[0.,0.,0.],'Ez') + np.sum(mesh.vnE[:1])] = 1.
Src = EM.FDEM.SrcFDEM_RawVec([Rx0], freq, S_m, S_e)
survey = EM.FDEM.SurveyFDEM([Src])
prb = EM.FDEM.ProblemFDEM_e(mesh, mapping=mapping)
elif fdemType == 'b':
if SrcType is 'RawVec':
S_m = np.zeros(mesh.nF)
S_e = np.zeros(mesh.nE)
S_m[Utils.closestPoints(mesh,[0.,0.,0.],'Fz') + np.sum(mesh.vnF[:1])] = 1.
S_e[Utils.closestPoints(mesh,[0.,0.,0.],'Ez') + np.sum(mesh.vnE[:1])] = 1.
Src = EM.FDEM.SrcFDEM_RawVec([Rx0], freq, S_m, S_e)
survey = EM.FDEM.SurveyFDEM([Src])
prb = EM.FDEM.ProblemFDEM_b(mesh, mapping=mapping)
elif fdemType == 'j':
if SrcType is 'RawVec':
S_m = np.zeros(mesh.nE)
S_e = np.zeros(mesh.nF)
S_m[Utils.closestPoints(mesh,[0.,0.,0.],'Ez') + np.sum(mesh.vnE[:1])] = 1.
S_e[Utils.closestPoints(mesh,[0.,0.,0.],'Fz') + np.sum(mesh.vnF[:1])] = 1.
Src = EM.FDEM.SrcFDEM_RawVec([Rx0], freq, S_m, S_e)
survey = EM.FDEM.SurveyFDEM([Src])
prb = EM.FDEM.ProblemFDEM_j(mesh, mapping=mapping)
elif fdemType == 'h':
if SrcType is 'RawVec':
S_m = np.zeros(mesh.nE)
S_e = np.zeros(mesh.nF)
S_m[Utils.closestPoints(mesh,[0.,0.,0.],'Ez') + np.sum(mesh.vnE[:1])] = 1.
S_e[Utils.closestPoints(mesh,[0.,0.,0.],'Fz') + np.sum(mesh.vnF[:1])] = 1.
Src = EM.FDEM.SrcFDEM_RawVec([Rx0], freq, S_m, S_e)
survey = EM.FDEM.SurveyFDEM([Src])
prb = EM.FDEM.ProblemFDEM_h(mesh, mapping=mapping)
else:
raise NotImplementedError()
prb.pair(survey)
@@ -54,38 +107,42 @@ def adjointTest(fdemType, comp):
prb = getProblem(fdemType, comp)
print 'Adjoint %s formulation - %s' % (fdemType, comp)
m = np.log(np.ones(prb.mesh.nC)*CONDUCTIVITY)
mu = np.log(np.ones(prb.mesh.nC)*MU)
m = np.log(np.ones(prb.mapping.nP)*CONDUCTIVITY)
mu = np.ones(prb.mesh.nC)*MU
if addrandoms is True:
m = m + np.random.randn(prb.mesh.nC)*CONDUCTIVITY*1e-1
m = m + np.random.randn(prb.mapping.nP)*np.log(CONDUCTIVITY)*1e-1
mu = mu + np.random.randn(prb.mesh.nC)*MU*1e-1
prb.mu = mu
survey = prb.survey
# prb.PropMap.PropModel.mu = mu
# prb.PropMap.PropModel.mui = 1./mu
u = prb.fields(m)
v = np.random.rand(survey.nD)
w = np.random.rand(prb.mapping.nP)
w = np.random.rand(prb.mesh.nC)
vJw = v.dot(prb.Jvec(m, w, u=u))
wJtv = w.dot(prb.Jtvec(m, v, u=u))
vJw = v.dot(prb.Jvec(m, w, u))
wJtv = w.dot(prb.Jtvec(m, v, u))
tol = np.max([TOL*(10**int(np.log10(np.abs(vJw)))),FLR])
print vJw, wJtv, vJw - wJtv, tol, np.abs(vJw - wJtv) < tol
return np.abs(vJw - wJtv) < tol
def derivTest(fdemType, comp):
prb = getProblem(fdemType, comp)
print '%s formulation - %s' % (fdemType, comp)
x0 = np.log(np.ones(prb.mesh.nC)*CONDUCTIVITY)
x0 = np.log(np.ones(prb.mapping.nP)*CONDUCTIVITY)
mu = np.log(np.ones(prb.mesh.nC)*MU)
if addrandoms is True:
x0 = x0 + np.random.randn(prb.mesh.nC)*CONDUCTIVITY*1e-1
mu = mu + np.random.randn(prb.mesh.nC)*MU*1e-1
x0 = x0 + np.random.randn(prb.mapping.nP)*np.log(CONDUCTIVITY)*1e-1
mu = mu + np.random.randn(prb.mapping.nP)*MU*1e-1
# prb.PropMap.PropModel.mu = mu
# prb.PropMap.PropModel.mui = 1./mu
prb.mu = mu
survey = prb.survey
def fun(x):
return survey.dpred(x), lambda x: prb.Jvec(x0, x)
@@ -103,16 +160,16 @@ def crossCheckTest(fdemType, comp):
mu = np.log(np.ones(mesh.nC)*MU)
if addrandoms is True:
m = m + np.random.randn(mesh.nC)*CONDUCTIVITY*1e-1
m = m + np.random.randn(mesh.nC)*np.log(CONDUCTIVITY)*1e-1
mu = mu + np.random.randn(mesh.nC)*MU*1e-1
prb1.mu = mu
# prb1.PropMap.PropModel.mu = mu
# prb1.PropMap.PropModel.mui = 1./mu
survey1 = prb1.survey
d1 = survey1.dpred(m)
u1 = prb1.fields(m)
d1 = Utils.mkvc(survey1.projectFields(u1))
prb1.unpair
if verbose:
print ' Problem 1 solved'
if fdemType == 'e':
prb2 = getProblem('b', comp)
@@ -125,11 +182,12 @@ def crossCheckTest(fdemType, comp):
else:
raise NotImplementedError()
prb2.mu = mu
# prb2.mu = mu
survey2 = prb2.survey
d2 = survey2.dpred(m)
u2 = prb2.fields(m)
d2 = Utils.mkvc(survey2.projectFields(u2))
if verbose:
print ' Problem 2 solved'
r = d2-d1
l2r = l2norm(r)
@@ -144,265 +202,277 @@ def crossCheckTest(fdemType, comp):
class FDEM_DerivTests(unittest.TestCase):
def test_Jvec_exr_Eform(self):
self.assertTrue(derivTest('e', 'exr'))
def test_Jvec_exr_Bform(self):
self.assertTrue(derivTest('b', 'exr'))
def test_Jvec_eyr_Eform(self):
self.assertTrue(derivTest('e', 'eyr'))
def test_Jvec_eyr_Bform(self):
self.assertTrue(derivTest('b', 'eyr'))
def test_Jvec_ezr_Eform(self):
self.assertTrue(derivTest('e', 'ezr'))
def test_Jvec_ezr_Bform(self):
self.assertTrue(derivTest('b', 'ezr'))
def test_Jvec_exi_Eform(self):
self.assertTrue(derivTest('e', 'exi'))
def test_Jvec_exi_Bform(self):
self.assertTrue(derivTest('b', 'exi'))
def test_Jvec_eyi_Eform(self):
self.assertTrue(derivTest('e', 'eyi'))
def test_Jvec_eyi_Bform(self):
self.assertTrue(derivTest('b', 'eyi'))
def test_Jvec_ezi_Eform(self):
self.assertTrue(derivTest('e', 'ezi'))
def test_Jvec_ezi_Bform(self):
self.assertTrue(derivTest('b', 'ezi'))
if testDerivs:
if testEB:
def test_Jvec_exr_Eform(self):
self.assertTrue(derivTest('e', 'exr'))
def test_Jvec_eyr_Eform(self):
self.assertTrue(derivTest('e', 'eyr'))
def test_Jvec_ezr_Eform(self):
self.assertTrue(derivTest('e', 'ezr'))
def test_Jvec_exi_Eform(self):
self.assertTrue(derivTest('e', 'exi'))
def test_Jvec_eyi_Eform(self):
self.assertTrue(derivTest('e', 'eyi'))
def test_Jvec_ezi_Eform(self):
self.assertTrue(derivTest('e', 'ezi'))
def test_Jvec_bxr_Eform(self):
self.assertTrue(derivTest('e', 'bxr'))
def test_Jvec_bxr_Bform(self):
self.assertTrue(derivTest('b', 'bxr'))
def test_Jvec_byr_Eform(self):
self.assertTrue(derivTest('e', 'byr'))
def test_Jvec_byr_Bform(self):
self.assertTrue(derivTest('b', 'byr'))
def test_Jvec_bzr_Eform(self):
self.assertTrue(derivTest('e', 'bzr'))
def test_Jvec_bzr_Bform(self):
self.assertTrue(derivTest('b', 'bzr'))
def test_Jvec_bxi_Eform(self):
self.assertTrue(derivTest('e', 'bxi'))
def test_Jvec_bxi_Bform(self):
self.assertTrue(derivTest('b', 'bxi'))
def test_Jvec_byi_Eform(self):
self.assertTrue(derivTest('e', 'byi'))
def test_Jvec_byi_Bform(self):
self.assertTrue(derivTest('b', 'byi'))
def test_Jvec_bzi_Eform(self):
self.assertTrue(derivTest('e', 'bzi'))
def test_Jvec_bzi_Bform(self):
self.assertTrue(derivTest('b', 'bzi'))
def test_Jvec_bxr_Eform(self):
self.assertTrue(derivTest('e', 'bxr'))
def test_Jvec_byr_Eform(self):
self.assertTrue(derivTest('e', 'byr'))
def test_Jvec_bzr_Eform(self):
self.assertTrue(derivTest('e', 'bzr'))
def test_Jvec_bxi_Eform(self):
self.assertTrue(derivTest('e', 'bxi'))
def test_Jvec_byi_Eform(self):
self.assertTrue(derivTest('e', 'byi'))
def test_Jvec_bzi_Eform(self):
self.assertTrue(derivTest('e', 'bzi'))
def test_Jvec_exr_Bform(self):
self.assertTrue(derivTest('b', 'exr'))
def test_Jvec_eyr_Bform(self):
self.assertTrue(derivTest('b', 'eyr'))
def test_Jvec_ezr_Bform(self):
self.assertTrue(derivTest('b', 'ezr'))
def test_Jvec_exi_Bform(self):
self.assertTrue(derivTest('b', 'exi'))
def test_Jvec_eyi_Bform(self):
self.assertTrue(derivTest('b', 'eyi'))
def test_Jvec_ezi_Bform(self):
self.assertTrue(derivTest('b', 'ezi'))
def test_Jvec_bxr_Bform(self):
self.assertTrue(derivTest('b', 'bxr'))
def test_Jvec_byr_Bform(self):
self.assertTrue(derivTest('b', 'byr'))
def test_Jvec_bzr_Bform(self):
self.assertTrue(derivTest('b', 'bzr'))
def test_Jvec_bxi_Bform(self):
self.assertTrue(derivTest('b', 'bxi'))
def test_Jvec_byi_Bform(self):
self.assertTrue(derivTest('b', 'byi'))
def test_Jvec_bzi_Bform(self):
self.assertTrue(derivTest('b', 'bzi'))
if testHJ:
def test_Jvec_jxr_Jform(self):
self.assertTrue(derivTest('j', 'jxr'))
def test_Jvec_jyr_Jform(self):
self.assertTrue(derivTest('j', 'jyr'))
def test_Jvec_jzr_Jform(self):
self.assertTrue(derivTest('j', 'jzr'))
def test_Jvec_jxi_Jform(self):
self.assertTrue(derivTest('j', 'jxi'))
def test_Jvec_jyi_Jform(self):
self.assertTrue(derivTest('j', 'jyi'))
def test_Jvec_jzi_Jform(self):
self.assertTrue(derivTest('j', 'jzi'))
def test_Jvec_hxr_Jform(self):
self.assertTrue(derivTest('j', 'hxr'))
def test_Jvec_hyr_Jform(self):
self.assertTrue(derivTest('j', 'hyr'))
def test_Jvec_hzr_Jform(self):
self.assertTrue(derivTest('j', 'hzr'))
def test_Jvec_hxi_Jform(self):
self.assertTrue(derivTest('j', 'hxi'))
def test_Jvec_hyi_Jform(self):
self.assertTrue(derivTest('j', 'hyi'))
def test_Jvec_hzi_Jform(self):
self.assertTrue(derivTest('j', 'hzi'))
def test_Jvec_hxr_Hform(self):
self.assertTrue(derivTest('h', 'hxr'))
def test_Jvec_hyr_Hform(self):
self.assertTrue(derivTest('h', 'hyr'))
def test_Jvec_hzr_Hform(self):
self.assertTrue(derivTest('h', 'hzr'))
def test_Jvec_hxi_Hform(self):
self.assertTrue(derivTest('h', 'hxi'))
def test_Jvec_hyi_Hform(self):
self.assertTrue(derivTest('h', 'hyi'))
def test_Jvec_hzi_Hform(self):
self.assertTrue(derivTest('h', 'hzi'))
def test_Jvec_hxr_Hform(self):
self.assertTrue(derivTest('h', 'jxr'))
def test_Jvec_hyr_Hform(self):
self.assertTrue(derivTest('h', 'jyr'))
def test_Jvec_hzr_Hform(self):
self.assertTrue(derivTest('h', 'jzr'))
def test_Jvec_hxi_Hform(self):
self.assertTrue(derivTest('h', 'jxi'))
def test_Jvec_hyi_Hform(self):
self.assertTrue(derivTest('h', 'jyi'))
def test_Jvec_hzi_Hform(self):
self.assertTrue(derivTest('h', 'jzi'))
if testAdjoint:
if testEB:
def test_Jtvec_adjointTest_exr_Eform(self):
self.assertTrue(adjointTest('e', 'exr'))
def test_Jtvec_adjointTest_eyr_Eform(self):
self.assertTrue(adjointTest('e', 'eyr'))
def test_Jtvec_adjointTest_ezr_Eform(self):
self.assertTrue(adjointTest('e', 'ezr'))
def test_Jtvec_adjointTest_exi_Eform(self):
self.assertTrue(adjointTest('e', 'exi'))
def test_Jtvec_adjointTest_eyi_Eform(self):
self.assertTrue(adjointTest('e', 'eyi'))
def test_Jtvec_adjointTest_ezi_Eform(self):
self.assertTrue(adjointTest('e', 'ezi'))
def test_Jtvec_adjointTest_exr_Eform(self):
self.assertTrue(adjointTest('e', 'exr'))
def test_Jtvec_adjointTest_exr_Bform(self):
self.assertTrue(adjointTest('b', 'exr'))
def test_Jtvec_adjointTest_eyr_Eform(self):
self.assertTrue(adjointTest('e', 'eyr'))
def test_Jtvec_adjointTest_eyr_Bform(self):
self.assertTrue(adjointTest('b', 'eyr'))
def test_Jtvec_adjointTest_ezr_Eform(self):
self.assertTrue(adjointTest('e', 'ezr'))
def test_Jtvec_adjointTest_ezr_Bform(self):
self.assertTrue(adjointTest('b', 'ezr'))
def test_Jtvec_adjointTest_exi_Eform(self):
self.assertTrue(adjointTest('e', 'exi'))
def test_Jtvec_adjointTest_exi_Bform(self):
self.assertTrue(adjointTest('b', 'exi'))
def test_Jtvec_adjointTest_eyi_Eform(self):
self.assertTrue(adjointTest('e', 'eyi'))
def test_Jtvec_adjointTest_eyi_Bform(self):
self.assertTrue(adjointTest('b', 'eyi'))
def test_Jtvec_adjointTest_ezi_Eform(self):
self.assertTrue(adjointTest('e', 'ezi'))
def test_Jtvec_adjointTest_ezi_Bform(self):
self.assertTrue(adjointTest('b', 'ezi'))
def test_Jtvec_adjointTest_bxr_Eform(self):
self.assertTrue(adjointTest('e', 'bxr'))
def test_Jtvec_adjointTest_byr_Eform(self):
self.assertTrue(adjointTest('e', 'byr'))
def test_Jtvec_adjointTest_bzr_Eform(self):
self.assertTrue(adjointTest('e', 'bzr'))
def test_Jtvec_adjointTest_bxi_Eform(self):
self.assertTrue(adjointTest('e', 'bxi'))
def test_Jtvec_adjointTest_byi_Eform(self):
self.assertTrue(adjointTest('e', 'byi'))
def test_Jtvec_adjointTest_bzi_Eform(self):
self.assertTrue(adjointTest('e', 'bzi'))
def test_Jtvec_adjointTest_bxr_Eform(self):
self.assertTrue(adjointTest('e', 'bxr'))
def test_Jtvec_adjointTest_bxr_Bform(self):
self.assertTrue(adjointTest('b', 'bxr'))
def test_Jtvec_adjointTest_byr_Eform(self):
self.assertTrue(adjointTest('e', 'byr'))
def test_Jtvec_adjointTest_byr_Bform(self):
self.assertTrue(adjointTest('b', 'byr'))
def test_Jtvec_adjointTest_bzr_Eform(self):
self.assertTrue(adjointTest('e', 'bzr'))
def test_Jtvec_adjointTest_bzr_Bform(self):
self.assertTrue(adjointTest('b', 'bzr'))
def test_Jtvec_adjointTest_bxi_Eform(self):
self.assertTrue(adjointTest('e', 'bxi'))
def test_Jtvec_adjointTest_bxi_Bform(self):
self.assertTrue(adjointTest('b', 'bxi'))
def test_Jtvec_adjointTest_byi_Eform(self):
self.assertTrue(adjointTest('e', 'byi'))
def test_Jtvec_adjointTest_byi_Bform(self):
self.assertTrue(adjointTest('b', 'byi'))
def test_Jtvec_adjointTest_bzi_Eform(self):
self.assertTrue(adjointTest('e', 'bzi'))
def test_Jtvec_adjointTest_bzi_Bform(self):
self.assertTrue(adjointTest('b', 'bzi'))
def test_Jtvec_adjointTest_exr_Bform(self):
self.assertTrue(adjointTest('b', 'exr'))
def test_Jtvec_adjointTest_eyr_Bform(self):
self.assertTrue(adjointTest('b', 'eyr'))
def test_Jtvec_adjointTest_ezr_Bform(self):
self.assertTrue(adjointTest('b', 'ezr'))
def test_Jtvec_adjointTest_exi_Bform(self):
self.assertTrue(adjointTest('b', 'exi'))
def test_Jtvec_adjointTest_eyi_Bform(self):
self.assertTrue(adjointTest('b', 'eyi'))
def test_Jtvec_adjointTest_ezi_Bform(self):
self.assertTrue(adjointTest('b', 'ezi'))
def test_Jtvec_adjointTest_bxr_Bform(self):
self.assertTrue(adjointTest('b', 'bxr'))
def test_Jtvec_adjointTest_byr_Bform(self):
self.assertTrue(adjointTest('b', 'byr'))
def test_Jtvec_adjointTest_bzr_Bform(self):
self.assertTrue(adjointTest('b', 'bzr'))
def test_Jtvec_adjointTest_bxi_Bform(self):
self.assertTrue(adjointTest('b', 'bxi'))
def test_Jtvec_adjointTest_byi_Bform(self):
self.assertTrue(adjointTest('b', 'byi'))
def test_Jtvec_adjointTest_bzi_Bform(self):
self.assertTrue(adjointTest('b', 'bzi'))
def test_Jvec_jxr_Jform(self):
self.assertTrue(derivTest('j', 'jxr'))
def test_Jvec_jyr_Jform(self):
self.assertTrue(derivTest('j', 'jyr'))
def test_Jvec_jzr_Jform(self):
self.assertTrue(derivTest('j', 'jzr'))
def test_Jvec_jxi_Jform(self):
self.assertTrue(derivTest('j', 'jxi'))
def test_Jvec_jyi_Jform(self):
self.assertTrue(derivTest('j', 'jyi'))
def test_Jvec_jzi_Jform(self):
self.assertTrue(derivTest('j', 'jzi'))
if testHJ:
def test_Jtvec_adjointTest_jxr_Jform(self):
self.assertTrue(adjointTest('j', 'jxr'))
def test_Jtvec_adjointTest_jyr_Jform(self):
self.assertTrue(adjointTest('j', 'jyr'))
def test_Jtvec_adjointTest_jzr_Jform(self):
self.assertTrue(adjointTest('j', 'jzr'))
def test_Jtvec_adjointTest_jxi_Jform(self):
self.assertTrue(adjointTest('j', 'jxi'))
def test_Jtvec_adjointTest_jyi_Jform(self):
self.assertTrue(adjointTest('j', 'jyi'))
def test_Jtvec_adjointTest_jzi_Jform(self):
self.assertTrue(adjointTest('j', 'jzi'))
def test_Jvec_hxr_Jform(self):
self.assertTrue(derivTest('j', 'hxr'))
def test_Jvec_hyr_Jform(self):
self.assertTrue(derivTest('j', 'hyr'))
def test_Jvec_hzr_Jform(self):
self.assertTrue(derivTest('j', 'hzr'))
def test_Jvec_hxi_Jform(self):
self.assertTrue(derivTest('j', 'hxi'))
def test_Jvec_hyi_Jform(self):
self.assertTrue(derivTest('j', 'hyi'))
def test_Jvec_hzi_Jform(self):
self.assertTrue(derivTest('j', 'hzi'))
def test_Jtvec_adjointTest_hxr_Jform(self):
self.assertTrue(adjointTest('j', 'hxr'))
def test_Jtvec_adjointTest_hyr_Jform(self):
self.assertTrue(adjointTest('j', 'hyr'))
def test_Jtvec_adjointTest_hzr_Jform(self):
self.assertTrue(adjointTest('j', 'hzr'))
def test_Jtvec_adjointTest_hxi_Jform(self):
self.assertTrue(adjointTest('j', 'hxi'))
def test_Jtvec_adjointTest_hyi_Jform(self):
self.assertTrue(adjointTest('j', 'hyi'))
def test_Jtvec_adjointTest_hzi_Jform(self):
self.assertTrue(adjointTest('j', 'hzi'))
def test_Jvec_hxr_Hform(self):
self.assertTrue(derivTest('h', 'hxr'))
def test_Jvec_hyr_Hform(self):
self.assertTrue(derivTest('h', 'hyr'))
def test_Jvec_hzr_Hform(self):
self.assertTrue(derivTest('h', 'hzr'))
def test_Jvec_hxi_Hform(self):
self.assertTrue(derivTest('h', 'hxi'))
def test_Jvec_hyi_Hform(self):
self.assertTrue(derivTest('h', 'hyi'))
def test_Jvec_hzi_Hform(self):
self.assertTrue(derivTest('h', 'hzi'))
def test_Jtvec_adjointTest_hxr_Hform(self):
self.assertTrue(adjointTest('h', 'hxr'))
def test_Jtvec_adjointTest_hyr_Hform(self):
self.assertTrue(adjointTest('h', 'hyr'))
def test_Jtvec_adjointTest_hzr_Hform(self):
self.assertTrue(adjointTest('h', 'hzr'))
def test_Jtvec_adjointTest_hxi_Hform(self):
self.assertTrue(adjointTest('h', 'hxi'))
def test_Jtvec_adjointTest_hyi_Hform(self):
self.assertTrue(adjointTest('h', 'hyi'))
def test_Jtvec_adjointTest_hzi_Hform(self):
self.assertTrue(adjointTest('h', 'hzi'))
def test_Jvec_hxr_Hform(self):
self.assertTrue(derivTest('h', 'jxr'))
def test_Jvec_hyr_Hform(self):
self.assertTrue(derivTest('h', 'jyr'))
def test_Jvec_hzr_Hform(self):
self.assertTrue(derivTest('h', 'jzr'))
def test_Jvec_hxi_Hform(self):
self.assertTrue(derivTest('h', 'jxi'))
def test_Jvec_hyi_Hform(self):
self.assertTrue(derivTest('h', 'jyi'))
def test_Jvec_hzi_Hform(self):
self.assertTrue(derivTest('h', 'jzi'))
def test_Jtvec_adjointTest_jxr_Jform(self):
self.assertTrue(adjointTest('j', 'jxr'))
def test_Jtvec_adjointTest_jyr_Jform(self):
self.assertTrue(adjointTest('j', 'jyr'))
def test_Jtvec_adjointTest_jzr_Jform(self):
self.assertTrue(adjointTest('j', 'jzr'))
def test_Jtvec_adjointTest_jxi_Jform(self):
self.assertTrue(adjointTest('j', 'jxi'))
def test_Jtvec_adjointTest_jyi_Jform(self):
self.assertTrue(adjointTest('j', 'jyi'))
def test_Jtvec_adjointTest_jzi_Jform(self):
self.assertTrue(adjointTest('j', 'jzi'))
def test_Jtvec_adjointTest_hxr_Jform(self):
self.assertTrue(adjointTest('j', 'hxr'))
def test_Jtvec_adjointTest_hyr_Jform(self):
self.assertTrue(adjointTest('j', 'hyr'))
def test_Jtvec_adjointTest_hzr_Jform(self):
self.assertTrue(adjointTest('j', 'hzr'))
def test_Jtvec_adjointTest_hxi_Jform(self):
self.assertTrue(adjointTest('j', 'hxi'))
def test_Jtvec_adjointTest_hyi_Jform(self):
self.assertTrue(adjointTest('j', 'hyi'))
def test_Jtvec_adjointTest_hzi_Jform(self):
self.assertTrue(adjointTest('j', 'hzi'))
def test_Jtvec_adjointTest_hxr_Hform(self):
self.assertTrue(adjointTest('h', 'hxr'))
def test_Jtvec_adjointTest_hyr_Hform(self):
self.assertTrue(adjointTest('h', 'hyr'))
def test_Jtvec_adjointTest_hzr_Hform(self):
self.assertTrue(adjointTest('h', 'hzr'))
def test_Jtvec_adjointTest_hxi_Hform(self):
self.assertTrue(adjointTest('h', 'hxi'))
def test_Jtvec_adjointTest_hyi_Hform(self):
self.assertTrue(adjointTest('h', 'hyi'))
def test_Jtvec_adjointTest_hzi_Hform(self):
self.assertTrue(adjointTest('h', 'hzi'))
def test_Jtvec_adjointTest_hxr_Hform(self):
self.assertTrue(adjointTest('h', 'jxr'))
def test_Jtvec_adjointTest_hyr_Hform(self):
self.assertTrue(adjointTest('h', 'jyr'))
def test_Jtvec_adjointTest_hzr_Hform(self):
self.assertTrue(adjointTest('h', 'jzr'))
def test_Jtvec_adjointTest_hxi_Hform(self):
self.assertTrue(adjointTest('h', 'jxi'))
def test_Jtvec_adjointTest_hyi_Hform(self):
self.assertTrue(adjointTest('h', 'jyi'))
def test_Jtvec_adjointTest_hzi_Hform(self):
self.assertTrue(adjointTest('h', 'jzi'))
def test_Jtvec_adjointTest_hxr_Hform(self):
self.assertTrue(adjointTest('h', 'jxr'))
def test_Jtvec_adjointTest_hyr_Hform(self):
self.assertTrue(adjointTest('h', 'jyr'))
def test_Jtvec_adjointTest_hzr_Hform(self):
self.assertTrue(adjointTest('h', 'jzr'))
def test_Jtvec_adjointTest_hxi_Hform(self):
self.assertTrue(adjointTest('h', 'jxi'))
def test_Jtvec_adjointTest_hyi_Hform(self):
self.assertTrue(adjointTest('h', 'jyi'))
def test_Jtvec_adjointTest_hzi_Hform(self):
self.assertTrue(adjointTest('h', 'jzi'))
def test_EB_CrossCheck_exr_Eform(self):
self.assertTrue(crossCheckTest('e', 'exr'))
def test_EB_CrossCheck_eyr_Eform(self):
self.assertTrue(crossCheckTest('e', 'eyr'))
def test_EB_CrossCheck_ezr_Eform(self):
self.assertTrue(crossCheckTest('e', 'ezr'))
def test_EB_CrossCheck_exi_Eform(self):
self.assertTrue(crossCheckTest('e', 'exi'))
def test_EB_CrossCheck_eyi_Eform(self):
self.assertTrue(crossCheckTest('e', 'eyi'))
def test_EB_CrossCheck_ezi_Eform(self):
self.assertTrue(crossCheckTest('e', 'ezi'))
if testCrossCheck:
if testEB:
def test_EB_CrossCheck_exr_Eform(self):
self.assertTrue(crossCheckTest('e', 'exr'))
def test_EB_CrossCheck_eyr_Eform(self):
self.assertTrue(crossCheckTest('e', 'eyr'))
def test_EB_CrossCheck_ezr_Eform(self):
self.assertTrue(crossCheckTest('e', 'ezr'))
def test_EB_CrossCheck_exi_Eform(self):
self.assertTrue(crossCheckTest('e', 'exi'))
def test_EB_CrossCheck_eyi_Eform(self):
self.assertTrue(crossCheckTest('e', 'eyi'))
def test_EB_CrossCheck_ezi_Eform(self):
self.assertTrue(crossCheckTest('e', 'ezi'))
def test_EB_CrossCheck_bxr_Eform(self):
self.assertTrue(crossCheckTest('e', 'bxr'))
def test_EB_CrossCheck_byr_Eform(self):
self.assertTrue(crossCheckTest('e', 'byr'))
# def test_EB_CrossCheck_bzr_Eform(self):
# self.assertTrue(crossCheckTest('e', 'bzr')) # Doesn't make sense to test this for p-s approach
def test_EB_CrossCheck_bxi_Eform(self):
self.assertTrue(crossCheckTest('e', 'bxi'))
def test_EB_CrossCheck_byi_Eform(self):
self.assertTrue(crossCheckTest('e', 'byi'))
def test_EB_CrossCheck_bzi_Eform(self):
self.assertTrue(crossCheckTest('e', 'bzi'))
def test_EB_CrossCheck_bxr_Eform(self):
self.assertTrue(crossCheckTest('e', 'bxr'))
def test_EB_CrossCheck_byr_Eform(self):
self.assertTrue(crossCheckTest('e', 'byr'))
def test_EB_CrossCheck_bzr_Eform(self):
self.assertTrue(crossCheckTest('e', 'bzr'))
def test_EB_CrossCheck_bxi_Eform(self):
self.assertTrue(crossCheckTest('e', 'bxi'))
def test_EB_CrossCheck_byi_Eform(self):
self.assertTrue(crossCheckTest('e', 'byi'))
def test_EB_CrossCheck_bzi_Eform(self):
self.assertTrue(crossCheckTest('e', 'bzi'))
def test_HJ_CrossCheck_jxr_Jform(self):
self.assertTrue(crossCheckTest('j', 'jxr'))
def test_HJ_CrossCheck_jyr_Jform(self):
self.assertTrue(crossCheckTest('j', 'jyr'))
def test_HJ_CrossCheck_jzr_Jform(self):
self.assertTrue(crossCheckTest('j', 'jzr'))
def test_HJ_CrossCheck_jxi_Jform(self):
self.assertTrue(crossCheckTest('j', 'jxi'))
def test_HJ_CrossCheck_jyi_Jform(self):
self.assertTrue(crossCheckTest('j', 'jyi'))
def test_HJ_CrossCheck_jzi_Jform(self):
self.assertTrue(crossCheckTest('j', 'jzi'))
if testHJ:
def test_HJ_CrossCheck_jxr_Jform(self):
self.assertTrue(crossCheckTest('j', 'jxr'))
def test_HJ_CrossCheck_jyr_Jform(self):
self.assertTrue(crossCheckTest('j', 'jyr'))
def test_HJ_CrossCheck_jzr_Jform(self):
self.assertTrue(crossCheckTest('j', 'jzr'))
def test_HJ_CrossCheck_jxi_Jform(self):
self.assertTrue(crossCheckTest('j', 'jxi'))
def test_HJ_CrossCheck_jyi_Jform(self):
self.assertTrue(crossCheckTest('j', 'jyi'))
def test_HJ_CrossCheck_jzi_Jform(self):
self.assertTrue(crossCheckTest('j', 'jzi'))
def test_HJ_CrossCheck_hxr_Jform(self):
self.assertTrue(crossCheckTest('j', 'hxr'))
def test_HJ_CrossCheck_hyr_Jform(self):
self.assertTrue(crossCheckTest('j', 'hyr'))
def test_HJ_CrossCheck_hzr_Jform(self):
self.assertTrue(crossCheckTest('j', 'hzr'))
def test_HJ_CrossCheck_hxi_Jform(self):
self.assertTrue(crossCheckTest('j', 'hxi'))
def test_HJ_CrossCheck_hyi_Jform(self):
self.assertTrue(crossCheckTest('j', 'hyi'))
def test_HJ_CrossCheck_hzi_Jform(self):
self.assertTrue(crossCheckTest('j', 'hzi'))
def test_HJ_CrossCheck_hxr_Jform(self):
self.assertTrue(crossCheckTest('j', 'hxr'))
def test_HJ_CrossCheck_hyr_Jform(self):
self.assertTrue(crossCheckTest('j', 'hyr'))
# def test_HJ_CrossCheck_hzr_Jform(self):
# self.assertTrue(crossCheckTest('j', 'hzr')) # Doesn't make sense to test this for p-s approach
def test_HJ_CrossCheck_hxi_Jform(self):
self.assertTrue(crossCheckTest('j', 'hxi'))
def test_HJ_CrossCheck_hyi_Jform(self):
self.assertTrue(crossCheckTest('j', 'hyi'))
def test_HJ_CrossCheck_hzi_Jform(self):
self.assertTrue(crossCheckTest('j', 'hzi'))
if __name__ == '__main__':
unittest.main()
+61
View File
@@ -0,0 +1,61 @@
from SimPEG import Tests, Utils, np
import simpegEM.Analytics.FDEMcasing as Casing
import unittest
from scipy.constants import mu_0
n = 50.
freq = 1.
a = 5e-2
b = a + 1e-2
sigma = np.r_[10., 5.5e6, 1e-1]
mu = mu_0*np.r_[1.,100.,1.]
srcloc = np.r_[0., 0., 0.]
xobs = np.random.rand(n)+10.
yobs = np.zeros(n)
zobs = np.random.randn(n)
plotit = False
def CasingMagDipoleDeriv_r(x):
obsloc = np.vstack([x, yobs, zobs]).T
f = Casing._getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu)
g = Utils.sdiag(Casing._getCasingHertzMagDipoleDeriv_r(srcloc,obsloc,freq,sigma,a,b,mu))
return f,g
def CasingMagDipoleDeriv_z(z):
obsloc = np.vstack([xobs, yobs, z]).T
f = Casing._getCasingHertzMagDipole(srcloc,obsloc,freq,sigma,a,b,mu)
g = Utils.sdiag(Casing._getCasingHertzMagDipoleDeriv_z(srcloc,obsloc,freq,sigma,a,b,mu))
return f,g
def CasingMagDipole2Deriv_z_r(x):
obsloc = np.vstack([x, yobs, zobs]).T
f = Casing._getCasingHertzMagDipoleDeriv_z(srcloc,obsloc,freq,sigma,a,b,mu)
g = Utils.sdiag(Casing._getCasingHertzMagDipole2Deriv_z_r(srcloc,obsloc,freq,sigma,a,b,mu))
return f,g
def CasingMagDipole2Deriv_z_z(z):
obsloc = np.vstack([xobs, yobs, z]).T
f = Casing._getCasingHertzMagDipoleDeriv_z(srcloc,obsloc,freq,sigma,a,b,mu)
g = Utils.sdiag(Casing._getCasingHertzMagDipole2Deriv_z_z(srcloc,obsloc,freq,sigma,a,b,mu))
return f,g
class Casing_DerivTest(unittest.TestCase):
Tests.checkDerivative(CasingMagDipoleDeriv_r,np.ones(n)*10+np.random.randn(n),plotIt=False)
Tests.checkDerivative(CasingMagDipoleDeriv_z,np.random.randn(n),plotIt=False)
Tests.checkDerivative(CasingMagDipole2Deriv_z_r,np.ones(n)*10+np.random.randn(n),plotIt=False)
Tests.checkDerivative(CasingMagDipole2Deriv_z_z,np.random.randn(n),plotIt=False)
if __name__ == '__main__':
unittest.main()
+8 -8
View File
@@ -4,6 +4,7 @@ import simpegEM as EM
from scipy.constants import mu_0
plotIt = False
freq = 1e2
class FDEM_analyticTests(unittest.TestCase):
@@ -22,9 +23,9 @@ class FDEM_analyticTests(unittest.TestCase):
x = np.linspace(-10,10,5)
XYZ = Utils.ndgrid(x,np.r_[0],np.r_[0])
rxList = EM.FDEM.RxFDEM(XYZ, 'exi')
Tx0 = EM.FDEM.TxFDEM(np.r_[0.,0.,0.], 'VMD', 1e2, [rxList])
Src0 = EM.FDEM.SrcFDEM_MagDipole([rxList],loc=np.r_[0.,0.,0.], freq=freq)
survey = EM.FDEM.SurveyFDEM([Tx0])
survey = EM.FDEM.SurveyFDEM([Src0])
prb = EM.FDEM.ProblemFDEM_b(mesh, mapping=mapping)
prb.pair(survey)
@@ -43,7 +44,7 @@ class FDEM_analyticTests(unittest.TestCase):
self.prb = prb
self.mesh = mesh
self.m = m
self.Tx0 = Tx0
self.Src0 = Src0
self.sig = sig
def test_Transect(self):
@@ -51,20 +52,19 @@ class FDEM_analyticTests(unittest.TestCase):
u = self.prb.fields(self.m)
bfz = self.mesh.r(u[self.Tx0, 'b'],'F','Fz','M')
bfz = self.mesh.r(u[self.Src0, 'b'],'F','Fz','M')
x = np.linspace(-55,55,12)
XYZ = Utils.ndgrid(x,np.r_[0],np.r_[0])
P = self.mesh.getInterpolationMat(XYZ, 'Fz')
an = EM.Analytics.FDEM.hzAnalyticDipoleF(x, self.Tx0.freq, self.sig)
an = EM.Analytics.FDEM.hzAnalyticDipoleF(x, self.Src0.freq, self.sig)
diff = np.log10(np.abs(P*np.imag(u[self.Tx0, 'b']) - mu_0*np.imag(an)))
diff = np.log10(np.abs(P*np.imag(u[self.Src0, 'b']) - mu_0*np.imag(an)))
if plotIt:
import matplotlib.pyplot as plt
plt.plot(x,np.log10(np.abs(P*np.imag(u[self.Tx0, 'b']))))
plt.plot(x,np.log10(np.abs(P*np.imag(u[self.Src0, 'b']))))
plt.plot(x,np.log10(np.abs(mu_0*np.imag(an))), 'r')
plt.plot(x,diff,'g')
plt.show()
-103
View File
@@ -1,103 +0,0 @@
import unittest
from SimPEG import *
import simpegEM as EM
class FieldsTest(unittest.TestCase):
def setUp(self):
mesh = Mesh.TensorMesh([np.ones(n)*5 for n in [10,11,12]],[0,0,-30])
x = np.linspace(5,10,3)
XYZ = Utils.ndgrid(x,x,np.r_[0.])
txLoc = np.r_[0,0,0.]
rxList0 = EM.FDEM.RxFDEM(XYZ, 'exi')
Tx0 = EM.FDEM.TxFDEM(txLoc, 'VMD', 3., [rxList0])
rxList1 = EM.FDEM.RxFDEM(XYZ, 'bxi')
Tx1 = EM.FDEM.TxFDEM(txLoc, 'VMD', 3., [rxList1])
rxList2 = EM.FDEM.RxFDEM(XYZ, 'bxi')
Tx2 = EM.FDEM.TxFDEM(txLoc, 'VMD', 2., [rxList2])
rxList3 = EM.FDEM.RxFDEM(XYZ, 'bxi')
Tx3 = EM.FDEM.TxFDEM(txLoc, 'VMD', 2., [rxList3])
Tx4 = EM.FDEM.TxFDEM(txLoc, 'VMD', 1., [rxList0, rxList1, rxList2, rxList3])
txList = [Tx0,Tx1,Tx2,Tx3,Tx4]
survey = EM.FDEM.SurveyFDEM(txList)
self.F = EM.FDEM.FieldsFDEM(mesh, survey)
self.Tx0 = Tx0
self.Tx1 = Tx1
self.mesh = mesh
self.XYZ = XYZ
def test_SetGet(self):
F = self.F
for freq in F.survey.freqs:
nFreq = F.survey.nTxByFreq[freq]
Txs = F.survey.getTransmitters(freq)
e = np.random.rand(F.mesh.nE, nFreq)
F[Txs, 'e'] = e
b = np.random.rand(F.mesh.nF, nFreq)
F[Txs, 'b'] = b
if nFreq == 1:
F[Txs, 'b'] = Utils.mkvc(b)
if e.shape[1] == 1:
e, b = Utils.mkvc(e), Utils.mkvc(b)
self.assertTrue(np.all(F[Txs, 'e'] == e))
self.assertTrue(np.all(F[Txs, 'b'] == b))
F[Txs] = {'b':b,'e':e}
self.assertTrue(np.all(F[Txs, 'e'] == e))
self.assertTrue(np.all(F[Txs, 'b'] == b))
lastFreq = F[Txs]
self.assertTrue(type(lastFreq) is dict)
self.assertTrue(sorted([k for k in lastFreq]) == ['b','e'])
self.assertTrue(np.all(lastFreq['b'] == b))
self.assertTrue(np.all(lastFreq['e'] == e))
Tx_f3 = F.survey.getTransmitters(3.)
self.assertTrue(F[Tx_f3,'b'].shape == (F.mesh.nF, 2))
b = np.random.rand(F.mesh.nF, 2)
Tx_f0 = F.survey.getTransmitters(self.Tx0.freq)
F[Tx_f0,'b'] = b
self.assertTrue(F[self.Tx0]['b'].shape == (F.mesh.nF,))
self.assertTrue(F[self.Tx0,'b'].shape == (F.mesh.nF,))
self.assertTrue(np.all(F[self.Tx0,'b'] == b[:,0]))
self.assertTrue(np.all(F[self.Tx1,'b'] == b[:,1]))
def test_assertions(self):
freq = self.F.survey.freqs[0]
Txs = self.F.survey.getTransmitters(freq)
bWrongSize = np.random.rand(self.F.mesh.nE, self.F.survey.nTxByFreq[freq])
def fun(): self.F[Txs, 'b'] = bWrongSize
self.assertRaises(ValueError, fun)
def fun(): self.F[-999.]
self.assertRaises(KeyError, fun)
def fun(): self.F['notRight']
self.assertRaises(KeyError, fun)
def fun(): self.F[Txs,'notThere']
self.assertRaises(KeyError, fun)
def test_FieldProjections(self):
F = self.F
for freq in F.survey.freqs:
nFreq = F.survey.nTxByFreq[freq]
Txs = F.survey.getTransmitters(freq)
e = np.random.rand(F.mesh.nE, nFreq)
b = np.random.rand(F.mesh.nF, nFreq)
F[Txs] = {'b':b,'e':e}
Txs = F.survey.getTransmitters(freq)
for ii, tx in enumerate(Txs):
for jj, rx in enumerate(tx.rxList):
dat = rx.projectFields(tx, self.mesh, F)
self.assertTrue(dat.dtype == float)
fieldType = rx.projField
u = {'b':b[:,ii], 'e': e[:,ii]}[fieldType]
real_or_imag = rx.projComp
u = getattr(u, real_or_imag)
gloc = rx.projGLoc
d = self.mesh.getInterpolationMat(self.XYZ, gloc)*u
self.assertTrue(np.all(dat == d))
if __name__ == '__main__':
unittest.main()
+16 -15
View File
@@ -3,6 +3,7 @@ from SimPEG import *
import simpegEM as EM
plotIt = False
tol = 1e-6
class TDEM_bDerivTests(unittest.TestCase):
@@ -22,9 +23,9 @@ class TDEM_bDerivTests(unittest.TestCase):
rxOffset = 40.
rx = EM.TDEM.RxTDEM(np.array([[rxOffset, 0., 0.]]), np.logspace(-4,-3, 20), 'bz')
tx = EM.TDEM.TxTDEM(np.array([0., 0., 0.]), 'VMD_MVP', [rx])
src = EM.TDEM.SrcTDEM_VMD_MVP([rx], loc=np.array([0., 0., 0.]))
survey = EM.TDEM.SurveyTDEM([tx])
survey = EM.TDEM.SurveyTDEM([src])
self.prb = EM.TDEM.ProblemTDEM_b(mesh, mapping=mapping)
# self.prb.timeSteps = [1e-5]
@@ -60,7 +61,7 @@ class TDEM_bDerivTests(unittest.TestCase):
self.assertLess(np.linalg.norm(V1-V2)/np.linalg.norm(V2), 1.e-6)
V1 = Ahu[:,'e',1]
self.assertLess(np.linalg.norm(V1), 1.e-6)
return np.linalg.norm(V1) < 1.e-6
for i in range(2,prb.nT):
@@ -74,7 +75,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = Ahu[:,'e',i]
V2 = prb.MeSigma*u[:,'e',i]
# print np.linalg.norm(V1), np.linalg.norm(V2)
self.assertLess(np.linalg.norm(V1)/np.linalg.norm(V2), 1.e-6)
return np.linalg.norm(V1)/np.linalg.norm(V2), 1.e-6
def test_AhVecVSMat_OneTS(self):
@@ -120,7 +121,7 @@ class TDEM_bDerivTests(unittest.TestCase):
u1 = prb.solveAh(sigma,f).tovec().flatten()
u2 = sp.linalg.spsolve(A.tocsr(),f.tovec())
self.assertLess(np.linalg.norm(u1-u2),1e-8)
self.assertTrue(np.linalg.norm(u1-u2)<1e-8)
def test_solveAhVsAhVec(self):
@@ -156,7 +157,7 @@ class TDEM_bDerivTests(unittest.TestCase):
derChk = lambda m: [self.prb._AhVec(m, f).tovec(), lambda mx: self.prb.Gvec(sigma, mx, u=f).tovec()]
print '\ntest_DerivG'
passed = Tests.checkDerivative(derChk, sigma, plotIt=False, dx=dm, num=4, eps=1e-20)
self.assertTrue(passed)
return passed
def test_Deriv_dUdM(self):
@@ -171,8 +172,7 @@ class TDEM_bDerivTests(unittest.TestCase):
derChk = lambda m: [self.prb.fields(m).tovec(), lambda mx: -prb.solveAh(sigma, prb.Gvec(sigma, mx, u=f)).tovec()]
print '\n'
print 'test_Deriv_dUdM'
passed = Tests.checkDerivative(derChk, sigma, plotIt=False, dx=dm, num=4, eps=1e-20)
self.assertTrue(passed)
Tests.checkDerivative(derChk, sigma, plotIt=False, dx=dm, num=4, eps=1e-20)
def test_Deriv_J(self):
@@ -188,8 +188,7 @@ class TDEM_bDerivTests(unittest.TestCase):
derChk = lambda m: [prb.survey.dpred(m), lambda mx: prb.Jvec(sigma, mx)]
print '\n'
print 'test_Deriv_J'
passed = Tests.checkDerivative(derChk, sigma, plotIt=False, dx=d_sig, num=4, eps=1e-20)
self.assertTrue(passed)
Tests.checkDerivative(derChk, sigma, plotIt=False, dx=d_sig, num=4, eps=1e-20)
def test_projectAdjoint(self):
prb = self.prb
@@ -208,7 +207,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = d_vec.dot(survey.projectFieldsDeriv(None, v=f).tovec())
V2 = f.tovec().dot(survey.projectFieldsDeriv(None, v=d, adjoint=True).tovec())
self.assertLess((V1-V2)/np.abs(V1), 1e-6)
self.assertTrue((V1-V2)/np.abs(V1) < tol)
def test_adjointAhVsAht(self):
prb = self.prb
@@ -227,7 +226,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = f2.tovec().dot(prb._AhVec(sigma, f1).tovec())
V2 = f1.tovec().dot(prb._AhtVec(sigma, f2).tovec())
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
self.assertTrue(np.abs(V1-V2)/np.abs(V1) < tol)
# def test_solveAhtVsAhtVec(self):
# prb = self.prb
@@ -292,7 +291,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = m.dot(prb.Gtvec(sigma, v, u))
V2 = v.tovec().dot(prb.Gvec(sigma, m, u).tovec())
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
self.assertTrue(np.abs(V1-V2)/np.abs(V1) < tol)
def test_adjointJvecVsJtvec(self):
mesh = self.mesh
@@ -304,8 +303,10 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = d.dot(prb.Jvec(sigma, m))
V2 = m.dot(prb.Jtvec(sigma, d))
print 'AdjointTest', V1, V2
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
passed = np.abs(V1-V2)/np.abs(V1) < tol
print 'AdjointTest', V1, V2, passed
self.assertTrue(passed)
@@ -22,11 +22,11 @@ class TDEM_bDerivTests(unittest.TestCase):
rxOffset = 40.
rx = EM.TDEM.RxTDEM(np.array([[rxOffset, 0., 0.]]), np.logspace(-4,-3, 20), 'bz')
tx = EM.TDEM.TxTDEM(np.array([0., 0., 0.]), 'VMD_MVP', [rx])
src = EM.TDEM.SrcTDEM_VMD_MVP( [rx], loc=np.array([0., 0., 0.]))
rx2 = EM.TDEM.RxTDEM(np.array([[rxOffset-10, 0., 0.]]), np.logspace(-5,-4, 25), 'bz')
tx2 = EM.TDEM.TxTDEM(np.array([0., 0., 0.]), 'VMD_MVP', [rx2])
src2 = EM.TDEM.SrcTDEM_VMD_MVP( [rx2], loc=np.array([0., 0., 0.]))
survey = EM.TDEM.SurveyTDEM([tx,tx2])
survey = EM.TDEM.SurveyTDEM([src,src2])
self.prb = EM.TDEM.ProblemTDEM_b(mesh, mapping=mapping)
# self.prb.timeSteps = [1e-5]
@@ -60,8 +60,7 @@ class TDEM_bDerivTests(unittest.TestCase):
derChk = lambda m: [self.prb._AhVec(m, f).tovec(), lambda mx: self.prb.Gvec(sigma, mx, u=f).tovec()]
print '\ntest_DerivG'
passed = Tests.checkDerivative(derChk, sigma, plotIt=False, dx=dm, num=4, eps=1e-20)
self.assertTrue(passed)
Tests.checkDerivative(derChk, sigma, plotIt=False, dx=dm, num=4, eps=1e-20)
def test_Deriv_dUdM(self):
@@ -76,8 +75,7 @@ class TDEM_bDerivTests(unittest.TestCase):
derChk = lambda m: [self.prb.fields(m).tovec(), lambda mx: -prb.solveAh(sigma, prb.Gvec(sigma, mx, u=f)).tovec()]
print '\n'
print 'test_Deriv_dUdM'
passed = Tests.checkDerivative(derChk, sigma, plotIt=False, dx=dm, num=4, eps=1e-20)
self.assertTrue(passed)
Tests.checkDerivative(derChk, sigma, plotIt=False, dx=dm, num=4, eps=1e-20)
def test_Deriv_J(self):
@@ -93,28 +91,27 @@ class TDEM_bDerivTests(unittest.TestCase):
derChk = lambda m: [prb.survey.dpred(m), lambda mx: prb.Jvec(sigma, mx)]
print '\n'
print 'test_Deriv_J'
passed = Tests.checkDerivative(derChk, sigma, plotIt=False, dx=d_sig, num=4, eps=1e-20)
self.assertTrue(passed)
Tests.checkDerivative(derChk, sigma, plotIt=False, dx=d_sig, num=4, eps=1e-20)
def test_projectAdjoint(self):
prb = self.prb
survey = prb.survey
nTx = survey.nTx
nSrc = survey.nSrc
mesh = self.mesh
# Generate random fields and data
f = EM.TDEM.FieldsTDEM(prb.mesh, prb.survey)
for i in range(prb.nT):
f[:,'b',i] = np.random.rand(mesh.nF, nTx)
f[:,'e',i] = np.random.rand(mesh.nE, nTx)
f[:,'b',i] = np.random.rand(mesh.nF, nSrc)
f[:,'e',i] = np.random.rand(mesh.nE, nSrc)
d_vec = np.random.rand(survey.nD)
d = Survey.Data(survey,v=d_vec)
# Check that d.T*Q*f = f.T*Q.T*d
V1 = d_vec.dot(survey.projectFieldsDeriv(None, v=f).tovec())
V2 = f.tovec().dot(survey.projectFieldsDeriv(None, v=d, adjoint=True).tovec())
V2 = np.sum((f.tovec())*(survey.projectFieldsDeriv(None, v=d, adjoint=True).tovec()))
self.assertLess((V1-V2)/np.abs(V1), 1e-6)
self.assertTrue((V1-V2)/np.abs(V1) < 1e-6)
def test_adjointGvecVsGtvec(self):
mesh = self.mesh
@@ -134,8 +131,8 @@ class TDEM_bDerivTests(unittest.TestCase):
v[:,'e',i] = np.random.rand(mesh.nE, 2)
V1 = m.dot(prb.Gtvec(sigma, v, u))
V2 = v.tovec().dot(prb.Gvec(sigma, m, u).tovec())
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
V2 = np.sum(v.tovec()*prb.Gvec(sigma, m, u).tovec())
self.assertTrue(np.abs(V1-V2)/np.abs(V1) <1e-6)
def test_adjointJvecVsJtvec(self):
mesh = self.mesh
@@ -148,7 +145,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = d.dot(prb.Jvec(sigma, m))
V2 = m.dot(prb.Jtvec(sigma, d))
print 'AdjointTest', V1, V2
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
self.assertTrue(np.abs(V1-V2)/np.abs(V1) < 1e-6)
+7 -7
View File
@@ -4,7 +4,7 @@ import simpegEM as EM
plotIt = False
def getProb(meshType='CYL',rxTypes='bx,bz',nTx=1):
def getProb(meshType='CYL',rxTypes='bx,bz',nSrc=1):
cs = 5.
ncx = 20
ncy = 6
@@ -19,12 +19,12 @@ def getProb(meshType='CYL',rxTypes='bx,bz',nTx=1):
rxOffset = 40.
txs = []
for ii in range(nTx):
srcs = []
for ii in range(nSrc):
rxs = [EM.TDEM.RxTDEM(np.array([[rxOffset, 0., 0.]]), np.logspace(-4,-3, 20 + ii), rxType) for rxType in rxTypes.split(',')]
txs += [EM.TDEM.TxTDEM(np.array([0., 0., 0.]), 'VMD_MVP', rxs)]
srcs += [EM.TDEM.SrcTDEM_VMD_MVP(rxs,np.array([0., 0., 0.]))]
survey = EM.TDEM.SurveyTDEM(txs)
survey = EM.TDEM.SurveyTDEM(srcs)
prb = EM.TDEM.ProblemTDEM_b(mesh, mapping=mapping)
# prb.timeSteps = [1e-5]
@@ -68,8 +68,8 @@ class TDEM_bDerivTests(unittest.TestCase):
def test_Jvec_bxbz(self): self.assertTrue(dotestJvec(*getProb(rxTypes='bx,bz')))
def test_Adjoint_bxbz(self): self.assertLess(*dotestAdjoint(*getProb(rxTypes='bx,bz')))
def test_Jvec_bxbz_2tx(self): self.assertTrue(dotestJvec(*getProb(rxTypes='bx,bz',nTx=2)))
def test_Adjoint_bxbz_2tx(self): self.assertLess(*dotestAdjoint(*getProb(rxTypes='bx,bz',nTx=2)))
def test_Jvec_bxbz_2src(self): self.assertTrue(dotestJvec(*getProb(rxTypes='bx,bz',nSrc=2)))
def test_Adjoint_bxbz_2src(self): self.assertLess(*dotestAdjoint(*getProb(rxTypes='bx,bz',nSrc=2)))
def test_Jvec_bxbzbz(self): self.assertTrue(dotestJvec(*getProb(rxTypes='bx,bz,bz')))
def test_Adjoint_bxbzbz(self): self.assertLess(*dotestAdjoint(*getProb(rxTypes='bx,bz,bz')))
+13 -12
View File
@@ -28,9 +28,10 @@ def halfSpaceProblemAnaDiff(meshType, sig_half=1e-2, rxOffset=50., bounds=[1e-5,
mapping = Maps.ExpMap(mesh) * Maps.Vertical1DMap(mesh) * actMap
rx = EM.TDEM.RxTDEM(np.array([[rxOffset, 0., 0.]]), np.logspace(-5,-4, 21), 'bz')
tx = EM.TDEM.TxTDEM(np.array([0., 0., 0.]), 'VMD_MVP', [rx])
src = EM.TDEM.SrcTDEM_VMD_MVP([rx], loc=np.array([0., 0., 0.]))
# src = EM.TDEM.SrcTDEM([rx], loc=np.array([0., 0., 0.]))
survey = EM.TDEM.SurveyTDEM([tx])
survey = EM.TDEM.SurveyTDEM([src])
prb = EM.TDEM.ProblemTDEM_b(mesh, mapping=mapping)
prb.Solver = MumpsSolver
@@ -60,26 +61,26 @@ def halfSpaceProblemAnaDiff(meshType, sig_half=1e-2, rxOffset=50., bounds=[1e-5,
class TDEM_bTests(unittest.TestCase):
def test_analitic_p2_CYL_50m(self):
def test_analytic_p2_CYL_50m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=50., sig_half=1e+2) < 0.01)
def test_analitic_p1_CYL_50m(self):
def test_analytic_p1_CYL_50m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=50., sig_half=1e+1) < 0.01)
def test_analitic_p0_CYL_50m(self):
def test_analytic_p0_CYL_50m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=50., sig_half=1e+0) < 0.01)
def test_analitic_m1_CYL_50m(self):
def test_analytic_m1_CYL_50m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=50., sig_half=1e-1) < 0.01)
def test_analitic_m2_CYL_50m(self):
def test_analytic_m2_CYL_50m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=50., sig_half=1e-2) < 0.01)
def test_analitic_m3_CYL_50m(self):
def test_analytic_m3_CYL_50m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=50., sig_half=1e-3) < 0.02)
def test_analitic_p0_CYL_1m(self):
def test_analytic_p0_CYL_1m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=1.0, sig_half=1e+0) < 0.01)
def test_analitic_m1_CYL_1m(self):
def test_analytic_m1_CYL_1m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=1.0, sig_half=1e-1) < 0.01)
def test_analitic_m2_CYL_1m(self):
def test_analytic_m2_CYL_1m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=1.0, sig_half=1e-2) < 0.01)
def test_analitic_m3_CYL_1m(self):
def test_analytic_m3_CYL_1m(self):
self.assertTrue(halfSpaceProblemAnaDiff('CYL', rxOffset=1.0, sig_half=1e-3) < 0.02)
+49
View File
@@ -0,0 +1,49 @@
import numpy as np
from scipy.constants import mu_0, epsilon_0
# useful params
def omega(freq):
"""Angular frequency, omega"""
return 2.*np.pi*freq
def k(freq, sigma, mu=mu_0, eps=epsilon_0):
""" Eq 1.47 - 1.49 in Ward and Hohmann """
w = omega(freq)
alp = w * np.sqrt( mu*eps/2 * ( np.sqrt(1. + (sigma / (eps*w))**2 ) + 1) )
beta = w * np.sqrt( mu*eps/2 * ( np.sqrt(1. + (sigma / (eps*w))**2 ) - 1) )
return alp - 1j*beta
# Constitutive relations
def e_from_j(prob,j):
eqLocs = prob._eqLocs
if eqLocs is 'FE':
MSigmaI = prob.MeSigmaI
elif eqLocs is 'EF':
MSigmaI = prob.MfRho
return MSigmaI*j
def j_from_e(prob,e):
eqLocs = prob._eqLocs
if eqLocs is 'FE':
MSigma = prob.MeSigma
elif eqLocs is 'EF':
MSigma = prob.MfRhoI
return MSigma*e
def b_from_h(prob,h):
eqLocs = prob._eqLocs
if eqLocs is 'FE':
MMu = prob.MfMuiI
elif eqLocs is 'EF':
MMu = prob.MeMu
return MMu*h
def h_from_b(prob,b):
eqLocs = prob._eqLocs
if eqLocs is 'FE':
MMuI = prob.MfMui
elif eqLocs is 'EF':
MMuI = prob.MeMuI
return MMuI*b
+203
View File
@@ -0,0 +1,203 @@
from SimPEG import *
from scipy.special import ellipk, ellipe
from scipy.constants import mu_0, pi
def MagneticDipoleVectorPotential(srcLoc, obsLoc, component, moment=1., dipoleMoment=(0., 0., 1.), mu = mu_0):
"""
Calculate the vector potential of a set of magnetic dipoles
at given locations 'ref. <http://en.wikipedia.org/wiki/Dipole#Magnetic_vector_potential>'
:param numpy.ndarray srcLoc: Location of the source(s) (x, y, z)
:param numpy.ndarray,SimPEG.Mesh obsLoc: Where the potentials will be calculated (x, y, z) or a SimPEG Mesh
:param str,list component: The component to calculate - 'x', 'y', or 'z' if an array, or grid type if mesh, can be a list
:param numpy.ndarray dipoleMoment: The vector dipole moment
:rtype: numpy.ndarray
:return: The vector potential each dipole at each observation location
"""
#TODO: break this out!
if type(component) in [list, tuple]:
out = range(len(component))
for i, comp in enumerate(component):
out[i] = MagneticDipoleVectorPotential(srcLoc, obsLoc, comp, dipoleMoment=dipoleMoment)
return np.concatenate(out)
if isinstance(obsLoc, Mesh.BaseMesh):
mesh = obsLoc
assert component in ['Ex','Ey','Ez','Fx','Fy','Fz'], "Components must be in: ['Ex','Ey','Ez','Fx','Fy','Fz']"
return MagneticDipoleVectorPotential(srcLoc, getattr(mesh,'grid'+component), component[1], dipoleMoment=dipoleMoment)
if component == 'x':
dimInd = 0
elif component == 'y':
dimInd = 1
elif component == 'z':
dimInd = 2
else:
raise ValueError('Invalid component')
srcLoc = np.atleast_2d(srcLoc)
obsLoc = np.atleast_2d(obsLoc)
dipoleMoment = np.atleast_2d(dipoleMoment)
nEdges = obsLoc.shape[0]
nSrc = srcLoc.shape[0]
m = np.array(dipoleMoment).repeat(nEdges, axis=0)
A = np.empty((nEdges, nSrc))
for i in range(nSrc):
dR = obsLoc - srcLoc[i, np.newaxis].repeat(nEdges, axis=0)
mCr = np.cross(m, dR)
r = np.sqrt((dR**2).sum(axis=1))
A[:, i] = +(mu/(4*pi)) * mCr[:,dimInd]/(r**3)
if nSrc == 1:
return A.flatten()
return A
def MagneticDipoleFields(srcLoc, obsLoc, component, moment=1., mu = mu_0):
"""
Calculate the vector potential of a set of magnetic dipoles
at given locations 'ref. <http://en.wikipedia.org/wiki/Dipole#Magnetic_vector_potential>'
:param numpy.ndarray srcLoc: Location of the source(s) (x, y, z)
:param numpy.ndarray obsLoc: Where the potentials will be calculated (x, y, z)
:param str component: The component to calculate - 'x', 'y', or 'z'
:param numpy.ndarray moment: The vector dipole moment (vertical)
:rtype: numpy.ndarray
:return: The vector potential each dipole at each observation location
"""
if component=='x':
dimInd = 0
elif component=='y':
dimInd = 1
elif component=='z':
dimInd = 2
else:
raise ValueError('Invalid component')
srcLoc = np.atleast_2d(srcLoc)
obsLoc = np.atleast_2d(obsLoc)
moment = np.atleast_2d(moment)
nFaces = obsLoc.shape[0]
nSrc = srcLoc.shape[0]
m = np.array(moment).repeat(nFaces, axis=0)
B = np.empty((nFaces, nSrc))
for i in range(nSrc):
dR = obsLoc - srcLoc[i, np.newaxis].repeat(nFaces, axis=0)
r = np.sqrt((dR**2).sum(axis=1))
if dimInd == 0:
B[:, i] = +(mu/(4*pi)) /(r**3) * (3*dR[:,2]*dR[:,0]/r**2)
elif dimInd == 1:
B[:, i] = +(mu/(4*pi)) /(r**3) * (3*dR[:,2]*dR[:,1]/r**2)
elif dimInd == 2:
B[:, i] = +(mu/(4*pi)) /(r**3) * (3*dR[:,2]**2/r**2-1)
else:
raise Exception("Not Implemented")
if nSrc == 1:
return B.flatten()
return B
def MagneticLoopVectorPotential(srcLoc, obsLoc, component, radius, mu=mu_0):
"""
Calculate the vector potential of horizontal circular loop
at given locations
:param numpy.ndarray srcLoc: Location of the source(s) (x, y, z)
:param numpy.ndarray,SimPEG.Mesh obsLoc: Where the potentials will be calculated (x, y, z) or a SimPEG Mesh
:param str,list component: The component to calculate - 'x', 'y', or 'z' if an array, or grid type if mesh, can be a list
:param numpy.ndarray I: Input current of the loop
:param numpy.ndarray radius: radius of the loop
:rtype: numpy.ndarray
:return: The vector potential each dipole at each observation location
"""
if type(component) in [list, tuple]:
out = range(len(component))
for i, comp in enumerate(component):
out[i] = MagneticLoopVectorPotential(srcLoc, obsLoc, comp, radius, mu)
return np.concatenate(out)
if isinstance(obsLoc, Mesh.BaseMesh):
mesh = obsLoc
assert component in ['Ex','Ey','Ez','Fx','Fy','Fz'], "Components must be in: ['Ex','Ey','Ez','Fx','Fy','Fz']"
return MagneticLoopVectorPotential(srcLoc, getattr(mesh,'grid'+component), component[1], radius, mu)
srcLoc = np.atleast_2d(srcLoc)
obsLoc = np.atleast_2d(obsLoc)
n = obsLoc.shape[0]
nSrc = srcLoc.shape[0]
if component=='z':
A = np.zeros((n, nSrc))
if nSrc ==1:
return A.flatten()
return A
else:
A = np.zeros((n, nSrc))
for i in range (nSrc):
x = obsLoc[:, 0] - srcLoc[i, 0]
y = obsLoc[:, 1] - srcLoc[i, 1]
z = obsLoc[:, 2] - srcLoc[i, 2]
r = np.sqrt(x**2 + y**2)
m = (4 * radius * r) / ((radius + r)**2 + z**2)
m[m > 1.] = 1.
# m might be slightly larger than 1 due to rounding errors
# but ellipke requires 0 <= m <= 1
K = ellipk(m)
E = ellipe(m)
ind = (r > 0) & (m < 1)
# % 1/r singular at r = 0 and K(m) singular at m = 1
Aphi = np.zeros(n)
# % Common factor is (mu * I) / pi with I = 1 and mu = 4e-7 * pi.
Aphi[ind] = 4e-7 / np.sqrt(m[ind]) * np.sqrt(radius / r[ind]) *((1. - m[ind] / 2.) * K[ind] - E[ind])
if component == 'x':
A[ind, i] = Aphi[ind] * (-y[ind] / r[ind] )
elif component == 'y':
A[ind, i] = Aphi[ind] * ( x[ind] / r[ind] )
else:
raise ValueError('Invalid component')
if nSrc == 1:
return A.flatten()
return A
if __name__ == '__main__':
from SimPEG import Mesh
import matplotlib.pyplot as plt
cs = 20
ncx, ncy, ncz = 41, 41, 40
hx = np.ones(ncx)*cs
hy = np.ones(ncy)*cs
hz = np.ones(ncz)*cs
mesh = Mesh.TensorMesh([hx, hy, hz], 'CCC')
srcLoc = np.r_[0., 0., 0.]
Ax = MagneticLoopVectorPotential(srcLoc, mesh.gridEx, 'x', 200)
Ay = MagneticLoopVectorPotential(srcLoc, mesh.gridEy, 'y', 200)
Az = MagneticLoopVectorPotential(srcLoc, mesh.gridEz, 'z', 200)
A = np.r_[Ax, Ay, Az]
B0 = mesh.edgeCurl*A
J0 = mesh.edgeCurl.T*B0
# mesh.plotImage(A, vType = 'Ex')
# mesh.plotImage(A, vType = 'Ey')
mesh.plotImage(B0, vType = 'Fx')
mesh.plotImage(B0, vType = 'Fy')
mesh.plotImage(B0, vType = 'Fz')
# # mesh.plotImage(J0, vType = 'Ex')
# mesh.plotImage(J0, vType = 'Ey')
# mesh.plotImage(J0, vType = 'Ez')
plt.show()
+2
View File
@@ -1,3 +1,5 @@
# import Sources
# import Ana
# import Solver
import EMUtils
import SrcUtils
+1 -1
View File
@@ -2,5 +2,5 @@
import TDEM
import FDEM
import Base
import Sources
import Analytics
import Utils