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Author SHA1 Message Date
D Fournier 33ea89702e Minor changes...test runs fine from here 2016-05-12 08:07:00 -07:00
110 changed files with 2268 additions and 7822 deletions
+1 -1
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@@ -35,7 +35,7 @@ before_install:
# Install packages
install:
- conda install --yes pip python=$TRAVIS_PYTHON_VERSION numpy scipy matplotlib cython ipython ipywidgets nose vtk
- conda install --yes pip python=$TRAVIS_PYTHON_VERSION numpy scipy matplotlib cython ipython nose vtk
- pip install nose-cov python-coveralls
- git clone https://github.com/rowanc1/pymatsolver.git
+194 -155
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@@ -1,16 +1,12 @@
from SimPEG import np, Utils
from SimPEG import np
import BaseDC as DC
import BaseDC as IP
import warnings
def getActiveindfromTopo(mesh, topo):
# def genActiveindfromTopo(mesh, topo):
"""
Get active indices from topography
"""
warnings.warn(
"`getActiveindfromTopo` is deprecated and will be removed in future versions. Use `SimPEG.Utils.surface2ind_topo` instead",
FutureWarning)
from scipy.interpolate import NearestNDInterpolator
if mesh.dim==3:
nCxy = mesh.nCx*mesh.nCy
@@ -32,9 +28,6 @@ def gettopoCC(mesh, airind):
"""
Get topography from active indices of mesh.
"""
warnings.warn(
"`gettopoCC` is deprecated and will be removed in future versions. Use `SimPEG.Utils.surface2ind_topo` instead",
FutureWarning)
mesh2D = Mesh.TensorMesh([mesh.hx, mesh.hy], mesh.x0[:2])
zc = mesh.gridCC[:,2]
AIRIND = airind.reshape((mesh.vnC[0]*mesh.vnC[1],mesh.vnC[2]), order='F')
@@ -125,27 +118,34 @@ def readUBC_DC3Dobstopo(filename,mesh,topo,probType="CC"):
def readUBC_DC2DModel(fileName):
"""
Read UBC GIF 2DTensor model and generate 2D Tensor model in simpeg
Read UBC GIF 2DTensor model and generate 2D Tensor model in simpeg
:param string fileName: path to the UBC GIF 2D model file
:rtype: TensorMesh
:return: SimPEG TensorMesh 2D object
Input:
:param fileName, path to the UBC GIF 2D model file
Output:
:param SimPEG TensorMesh 2D object
:return
Created on Thu Nov 12 13:14:10 2015
@author: dominiquef
"""
from SimPEG import np, mkvc
# Open fileand skip header... assume that we know the mesh already
obsfile = np.genfromtxt(fileName, delimiter=' \n', dtype=np.str, comments='!')
obsfile = np.genfromtxt(fileName,delimiter=' \n',dtype=np.str,comments='!')
dim = np.array(obsfile[0].split(), dtype=float)
dim = np.array(obsfile[0].split(),dtype=float)
temp = np.array(obsfile[1].split(), dtype=float)
temp = np.array(obsfile[1].split(),dtype=float)
if len(temp) > 1:
model = np.zeros(dim)
for ii in range(len(obsfile)-1):
mm = np.array(obsfile[ii+1].split(), dtype=float)
mm = np.array(obsfile[ii+1].split(),dtype=float)
model[:,ii] = mm
model = model[:,::-1]
@@ -153,10 +153,10 @@ def readUBC_DC2DModel(fileName):
else:
if len(obsfile[1:])==1:
mm = np.array(obsfile[1:].split(), dtype=float)
mm = np.array(obsfile[1:].split(),dtype=float)
else:
mm = np.array(obsfile[1:], dtype=float)
mm = np.array(obsfile[1:],dtype=float)
# Permute the second dimension to flip the order
model = mm.reshape(dim[1],dim[0])
@@ -169,19 +169,23 @@ def readUBC_DC2DModel(fileName):
return model
def plot_pseudoSection(DCsurvey, axs, surveyType='dipole-dipole', unitType='volt', clim=None, cblabel=True, axlabel = True, colorbar = True, contour = None):
def plot_pseudoSection(DCsurvey, axs, stype='dpdp', dtype="appc", clim=None, cblabel=True, axlabel = True, colorbar = True, contour = None):
"""
Read list of 2D tx-rx location and plot a speudo-section of apparent
resistivity.
Read list of 2D tx-rx location and plot a speudo-section of apparent
resistivity.
Assumes flat topo for now...
Assumes flat topo for now...
:param SurveyDC DCsurvey:
:param string surveyType: Either 'pole-dipole' | 'dipole-dipole'
:param string unitType: Either 'appResistivity' | 'appConductivity' | 'volt'
:rtype: matplotlib.plt
:return: figure scatter plot overlayed on image
Input:
:param d2D, z0
:switch stype -> Either 'pdp' (pole-dipole) | 'dpdp' (dipole-dipole)
:switch dtype=-> Either 'appr' (app. res) | 'appc' (app. con) | 'volt' (potential)
Output:
:figure scatter plot overlayed on image
Edited Feb 17th, 2016
@author: dominiquef
"""
from SimPEG import np
@@ -214,39 +218,39 @@ def plot_pseudoSection(DCsurvey, axs, surveyType='dipole-dipole', unitType='volt
Cmid = (Tx[0][0] + Tx[1][0])/2
Pmid = (Rx[0][:,0] + Rx[1][:,0])/2
# Change output for unitType
if unitType == 'volt':
# Change output for dtype
if dtype == 'volt':
rho = np.hstack([rho,data])
else:
# Compute pant leg of apparent rho
if surveyType == 'pole-dipole':
if stype == 'pdp':
leg = data * 2*np.pi * MA * ( MA + MN ) / MN
elif surveyType == 'dipole-dipole':
elif stype == 'dpdp':
leg = data * 2*np.pi / ( 1/MA - 1/MB - 1/NB + 1/NA )
else:
print """unitType must be 'pole-dipole' | 'dipole-dipole' """
print """dtype must be 'pdp'(pole-dipole) | 'dpdp' (dipole-dipole) """
break
if unitType == 'appConductivity':
if dtype == 'appc':
leg = np.log10(abs(1./leg))
rho = np.hstack([rho,leg])
elif unitType == 'appResistivity':
elif dtype == 'appr':
leg = np.log10(abs(leg))
rho = np.hstack([rho,leg])
else:
print """unitType must be 'appResistivity' | 'appConductivity' | 'volt' """
print """dtype must be 'appr' | 'appc' | 'volt' """
break
midx = np.hstack([midx, ( Cmid + Pmid )/2 ])
@@ -255,7 +259,7 @@ def plot_pseudoSection(DCsurvey, axs, surveyType='dipole-dipole', unitType='volt
# Grid points
grid_x, grid_z = np.mgrid[np.min(midx):np.max(midx), np.min(midz):np.max(midz)]
grid_rho = griddata(np.c_[midx,midz], rho.T, (grid_x, grid_z), method='linear')
# Scale the color scheme
if clim == None:
vmin, vmax = rho.min(), rho.max()
@@ -264,39 +268,38 @@ def plot_pseudoSection(DCsurvey, axs, surveyType='dipole-dipole', unitType='volt
# Plot data
grid_rho = np.ma.masked_where(np.isnan(grid_rho), grid_rho)
ph = plt.pcolormesh(grid_x[:,0],grid_z[0,:],grid_rho.T, vmin = vmin, vmax = vmax)
plt.gca().tick_params(axis='both', which='major', labelsize=8)
if contour is not None:
plt.contour(grid_x,grid_z,grid_rho,levels = contour,colors = 'r', vmin = vmin, vmax = vmax)
# Add scatter points
axs.scatter(midx,midz,s=10,c=rho.T, vmin = vmin, vmax = vmax)
if colorbar:
if unitType == 'volt':
if dtype == 'volt':
cbar = plt.colorbar(ph, ax = axs, format="%4.1f",fraction=0.04,orientation="horizontal")
else:
else:
cbar = plt.colorbar(ph, ax = axs, format="$10^{%.1f}$",fraction=0.04,orientation="horizontal")
cmin,cmax = cbar.get_clim()
ticks = np.linspace(cmin,cmax,3)
cbar.set_ticks(ticks)
cbar.ax.tick_params(labelsize=10)
if unitType == 'appConductivity':
cmin,cmax = cbar.get_clim()
ticks = np.linspace(cmin,cmax,3)
cbar.set_ticks(ticks)
cbar.ax.tick_params(labelsize=10)
if cblabel:
if dtype == 'appc':
cbar.set_label("App.Cond",size=12)
elif unitType == 'appResistivity':
elif dtype == 'appr':
cbar.set_label("App.Res.",size=12)
elif unitType == 'volt':
elif dtype == 'volt':
cbar.set_label("Potential (V)",size=12)
if not axlabel:
axs.set_xticklabels([])
axs.set_yticklabels([])
@@ -307,24 +310,27 @@ def plot_pseudoSection(DCsurvey, axs, surveyType='dipole-dipole', unitType='volt
return ph
def gen_DCIPsurvey(endl, mesh, surveyType, AM_sep, MN_sep, nrx):
def gen_DCIPsurvey(endl, mesh, stype, a, b, n):
"""
Load in endpoints and survey specifications to generate Tx, Rx location
stations.
Load in endpoints and survey specifications to generate Tx, Rx location
stations.
Assumes flat topo for now...
Assumes flat topo for now...
:param numpy.array endl: input endpoints [[x1, y1] , [x2, y2]]
:param Mesh mesh: SimPEG mesh object
:param string surveyType: 'dipole-dipole' | 'pole-dipole' | 'gradient'
:param float AM_sep: transmitter (A) - receiver (M) seperation
:param float b: receiver dipole seperation
:param float nrx: pole seperation, number of rx dipoles per tx
Input:
:param endl -> input endpoints [x1, y1, z1, x2, y2, z2]
:object mesh -> SimPEG mesh object
:switch stype -> "dpdp" (dipole-dipole) | "pdp" (pole-dipole) | 'gradient'
: param a, n -> pole seperation, number of rx dipoles per tx
:rtype: DC.Survey, Src, Rx
:returns: DC survey, Source
Output:
:param Tx, Rx -> List objects for each tx location
Lines: P1x, P1y, P1z, P2x, P2y, P2z
!! Require clean up to deal with DCsurvey
Created on Wed December 9th, 2015
@author: dominiquef
!! Require clean up to deal with DCsurvey
"""
from SimPEG import np
@@ -340,17 +346,17 @@ def gen_DCIPsurvey(endl, mesh, surveyType, AM_sep, MN_sep, nrx):
dl_x = ( endl[1,0] - endl[0,0] ) / dl_len
dl_y = ( endl[1,1] - endl[0,1] ) / dl_len
nstn = np.floor( dl_len / AM_sep )
nstn = np.floor( dl_len / a )
# Compute discrete pole location along line
stn_x = endl[0,0] + np.array(range(int(nstn)))*dl_x*AM_sep
stn_y = endl[0,1] + np.array(range(int(nstn)))*dl_y*AM_sep
stn_x = endl[0,0] + np.array(range(int(nstn)))*dl_x*a
stn_y = endl[0,1] + np.array(range(int(nstn)))*dl_y*a
# Create line of P1 locations
M = np.c_[stn_x, stn_y, np.ones(nstn).T*mesh.vectorNz[-1]]
# Create line of P2 locations
N = np.c_[stn_x+AM_sep*dl_x, stn_y+AM_sep*dl_y, np.ones(nstn).T*mesh.vectorNz[-1]]
N = np.c_[stn_x+a*dl_x, stn_y+a*dl_y, np.ones(nstn).T*mesh.vectorNz[-1]]
## Build list of Tx-Rx locations depending on survey type
# Dipole-dipole: Moving tx with [a] spacing -> [AB a MN1 a MN2 ... a MNn]
@@ -360,14 +366,14 @@ def gen_DCIPsurvey(endl, mesh, surveyType, AM_sep, MN_sep, nrx):
SrcList = []
if surveyType != 'gradient':
if stype != 'gradient':
for ii in range(0, int(nstn)-1):
if surveyType == 'dipole-dipole':
if stype == 'dpdp':
tx = np.c_[M[ii,:],N[ii,:]]
elif surveyType == 'pole-dipole':
elif stype == 'pdp':
tx = np.c_[M[ii,:],M[ii,:]]
# Rx.append(np.c_[M[ii+1:indx,:],N[ii+1:indx,:]])
@@ -376,33 +382,33 @@ def gen_DCIPsurvey(endl, mesh, surveyType, AM_sep, MN_sep, nrx):
AB = xy_2_r(tx[0,1],endl[1,0],tx[1,1],endl[1,1])
# Number of receivers to fit
nstn = np.min([np.floor( (AB - MN_sep) / AM_sep ) , nrx])
nstn = np.min([np.floor( (AB - b) / a ) , n])
# Check if there is enough space, else break the loop
if nstn <= 0:
continue
# Compute discrete pole location along line
stn_x = N[ii,0] + dl_x*MN_sep + np.array(range(int(nstn)))*dl_x*AM_sep
stn_y = N[ii,1] + dl_y*MN_sep + np.array(range(int(nstn)))*dl_y*AM_sep
stn_x = N[ii,0] + dl_x*b + np.array(range(int(nstn)))*dl_x*a
stn_y = N[ii,1] + dl_y*b + np.array(range(int(nstn)))*dl_y*a
# Create receiver poles
# Create line of P1 locations
P1 = np.c_[stn_x, stn_y, np.ones(nstn).T*mesh.vectorNz[-1]]
# Create line of P2 locations
P2 = np.c_[stn_x+AM_sep*dl_x, stn_y+AM_sep*dl_y, np.ones(nstn).T*mesh.vectorNz[-1]]
P2 = np.c_[stn_x+a*dl_x, stn_y+a*dl_y, np.ones(nstn).T*mesh.vectorNz[-1]]
Rx.append(np.c_[P1,P2])
rxClass = DC.RxDipole(P1, P2)
Tx.append(tx)
if surveyType == 'dipole-dipole':
if stype == 'dpdp':
srcClass = DC.SrcDipole([rxClass], M[ii,:],N[ii,:])
elif surveyType == 'pole-dipole':
elif stype == 'pdp':
srcClass = DC.SrcDipole([rxClass], M[ii,:],M[ii,:])
SrcList.append(srcClass)
elif surveyType == 'gradient':
elif stype == 'gradient':
# Gradient survey only requires Tx at end of line and creates a square
# grid of receivers at in the middle at a pre-set minimum distance
@@ -410,23 +416,23 @@ def gen_DCIPsurvey(endl, mesh, surveyType, AM_sep, MN_sep, nrx):
Tx.append(np.c_[M[0,:],N[-1,:]])
# Get the edge limit of survey area
min_x = endl[0,0] + dl_x * MN_sep
min_y = endl[0,1] + dl_y * MN_sep
min_x = endl[0,0] + dl_x * b
min_y = endl[0,1] + dl_y * b
max_x = endl[1,0] - dl_x * MN_sep
max_y = endl[1,1] - dl_y * MN_sep
max_x = endl[1,0] - dl_x * b
max_y = endl[1,1] - dl_y * b
box_l = np.sqrt( (min_x - max_x)**2 + (min_y - max_y)**2 )
box_w = box_l/2.
nstn = np.floor( box_l / AM_sep )
nstn = np.floor( box_l / a )
# Compute discrete pole location along line
stn_x = min_x + np.array(range(int(nstn)))*dl_x*AM_sep
stn_y = min_y + np.array(range(int(nstn)))*dl_y*AM_sep
stn_x = min_x + np.array(range(int(nstn)))*dl_x*a
stn_y = min_y + np.array(range(int(nstn)))*dl_y*a
# Define number of cross lines
nlin = int(np.floor( box_w / AM_sep ))
nlin = int(np.floor( box_w / a ))
lind = range(-nlin,nlin+1)
ngrad = nstn * len(lind)
@@ -435,12 +441,12 @@ def gen_DCIPsurvey(endl, mesh, surveyType, AM_sep, MN_sep, nrx):
for ii in range( len(lind) ):
# Move line in perpendicular direction by dipole spacing
lxx = stn_x - lind[ii]*AM_sep*dl_y
lyy = stn_y + lind[ii]*AM_sep*dl_x
lxx = stn_x - lind[ii]*a*dl_y
lyy = stn_y + lind[ii]*a*dl_x
M = np.c_[ lxx, lyy , np.ones(nstn).T*mesh.vectorNz[-1]]
N = np.c_[ lxx+AM_sep*dl_x, lyy+AM_sep*dl_y, np.ones(nstn).T*mesh.vectorNz[-1]]
N = np.c_[ lxx+a*dl_x, lyy+a*dl_y, np.ones(nstn).T*mesh.vectorNz[-1]]
rx[(ii*nstn):((ii+1)*nstn),:] = np.c_[M,N]
@@ -449,38 +455,44 @@ def gen_DCIPsurvey(endl, mesh, surveyType, AM_sep, MN_sep, nrx):
srcClass = DC.SrcDipole([rxClass], M[0,:], N[-1,:])
SrcList.append(srcClass)
else:
print """surveyType must be either 'pole-dipole', 'dipole-dipole' or 'gradient'. """
print """stype must be either 'pdp', 'dpdp' or 'gradient'. """
survey = DC.SurveyDC(SrcList)
return survey, Tx, Rx
def writeUBC_DCobs(fileName, DCsurvey, dim, surveyType, iptype = 0):
def writeUBC_DCobs(fileName, DCsurvey, dtype='3D', stype='SURFACE', iptype = 0):
"""
Write UBC GIF DCIP 2D or 3D observation file
:param string fileName: including path where the file is written out
:param Survey DCsurvey: DC survey class object
:param string dim: either '2D' | '3D'
:param string surveyType: either 'SURFACE' | 'GENERAL'
:rtype: file
:return: UBC2D-Data file
"""
Input:
:string fileName -> including path where the file is written out
:DCsurvey DC survey class object
:string dtype -> either '2D' | '3D'
:string stype -> either 'SURFACE' | 'GENERAL'
Output:
:param UBC2D-Data file
:return
Last edit: February 16th, 2016
@author: dominiquef
"""
from SimPEG import mkvc
assert (dim=='2D') | (dim=='3D'), "Data must be either '2D' | '3D'"
assert (surveyType=='SURFACE') | (surveyType=='GENERAL') | (surveyType=='SIMPLE'), "Data must be either 'SURFACE' | 'GENERAL' | 'SIMPLE'"
assert (dtype=='2D') | (dtype=='3D'), "Data must be either '2D' | '3D'"
assert (stype=='SURFACE') | (stype=='GENERAL') | (stype=='SIMPLE'), "Data must be either 'SURFACE' | 'GENERAL' | 'SIMPLE'"
fid = open(fileName,'w')
fid.write('! ' + surveyType + ' FORMAT\n')
if iptype!=0:
fid.write('IPTYPE=%i\n'%iptype)
else:
fid.write('! ' + stype + ' FORMAT\n')
count = 0
for ii in range(DCsurvey.nSrc):
@@ -494,33 +506,33 @@ def writeUBC_DCobs(fileName, DCsurvey, dim, surveyType, iptype = 0):
M = rx[0]
N = rx[1]
# Adapt source-receiver location for dim and surveyType
if dim=='2D':
# Adapt source-receiver location for dtype and stype
if dtype=='2D':
if surveyType == 'SIMPLE':
if stype == 'SIMPLE':
#fid.writelines("%e " % ii for ii in mkvc(tx[0,:]))
A = np.repeat(tx[0,0],M.shape[0],axis=0)
B = np.repeat(tx[0,1],M.shape[0],axis=0)
M = M[:,0]
N = N[:,0]
np.savetxt(fid, np.c_[A, B, M, N , DCsurvey.dobs[count:count+nD], DCsurvey.std[count:count+nD] ], fmt='%e',delimiter=' ',newline='\n')
else:
if surveyType == 'SURFACE':
if stype == 'SURFACE':
fid.writelines("%f " % ii for ii in mkvc(tx[0,:]))
M = M[:,0]
N = N[:,0]
if surveyType == 'GENERAL':
if stype == 'GENERAL':
# Flip sign for z-elevation to depth
tx[2::2,:] = -tx[2::2,:]
fid.writelines("%e " % ii for ii in mkvc(tx[::2,:]))
M = M[:,0::2]
N = N[:,0::2]
@@ -528,31 +540,31 @@ def writeUBC_DCobs(fileName, DCsurvey, dim, surveyType, iptype = 0):
# Flip sign for z-elevation to depth
M[:,1::2] = -M[:,1::2]
N[:,1::2] = -N[:,1::2]
fid.write('%i\n'% nD)
np.savetxt(fid, np.c_[ M, N , DCsurvey.dobs[count:count+nD], DCsurvey.std[count:count+nD] ], fmt='%f',delimiter=' ',newline='\n')
if dim=='3D':
if dtype=='3D':
if surveyType == 'SURFACE':
if stype == 'SURFACE':
fid.writelines("%e " % ii for ii in mkvc(tx[0:2,:]))
M = M[:,0:2]
N = N[:,0:2]
if surveyType == 'GENERAL':
if stype == 'GENERAL':
fid.writelines("%e " % ii for ii in mkvc(tx[0:3,:]))
fid.write('%i\n'% nD)
np.savetxt(fid, np.c_[ M, N , DCsurvey.dobs[count:count+nD], DCsurvey.std[count:count+nD] ], fmt='%e',delimiter=' ',newline='\n')
fid.write('\n')
count += nD
fid.close()
def convertObs_DC3D_to_2D(DCsurvey, lineID, flag='local'):
def convertObs_DC3D_to_2D(DCsurvey,lineID, flag = 'local'):
"""
Read DC survey and projects the coordinate system
according to the flag = 'Xloc' | 'Yloc' | 'local' (default)
@@ -561,9 +573,15 @@ def convertObs_DC3D_to_2D(DCsurvey, lineID, flag='local'):
The Z value is preserved, but Y coordinates zeroed.
:param DC.Survey survey3D: 3D simpeg DC survey
:rtype: DC.Survey
:return: survey2D
Input:
:param survey3D
Output:
:figure survey2D
Edited April 6th, 2016
@author: dominiquef
"""
from SimPEG import np
@@ -648,34 +666,39 @@ def convertObs_DC3D_to_2D(DCsurvey, lineID, flag='local'):
DCsurvey2D.std = np.asarray(DCsurvey.std)
return DCsurvey2D
def readUBC_DC3Dobs(fileName, rtype = 'DC'):
def readUBC_DC3Dobs(fileName, dtype = 'DC'):
"""
Read UBC GIF IP 3D observation file and generate survey
:param string fileName:, path to the UBC GIF 3D obs file
:rtype: Survey
:return: DCIPsurvey
Input:
:param fileName, path to the UBC GIF 3D obs file
Output:
:param IPsurvey
:return
@author: dominiquef
"""
zflag = True # Flag for z value provided
# Load file
if rtype == 'IP':
if dtype == 'IP':
obsfile = np.genfromtxt(fileName,delimiter=' \n',dtype=np.str,comments='IPTYPE')
elif rtype == 'DC':
elif dtype == 'DC':
obsfile = np.genfromtxt(fileName,delimiter=' \n',dtype=np.str,comments='!')
else:
print "rtype must be 'DC'(default) | 'IP'"
print "dtype must be 'DC'(default) | 'IP'"
# Pre-allocate
srcLists = []
Rx = []
d = []
wd = []
# Countdown for number of obs/tx
count = 0
@@ -694,7 +717,7 @@ def readUBC_DC3Dobs(fileName, rtype = 'DC'):
# Check if z value is provided, if False -> nan
if len(temp)==5:
tx = np.r_[temp[0:2],np.nan,temp[2:4],np.nan]
zflag = False # Pass on the flag to the receiver loc
else:
@@ -706,12 +729,12 @@ def readUBC_DC3Dobs(fileName, rtype = 'DC'):
temp = np.fromstring(obsfile[ii], dtype=float,sep=' ') # Get the string
# Filter out negative IP
# if temp[-2] < 0:
# if temp[-2] < 0:
# count = count -1
# print "Negative!"
#
#
# else:
# If the Z-location is provided, otherwise put nan
if zflag:
@@ -749,9 +772,17 @@ def readUBC_DC2Dobs(fileName):
------- NEEDS TO BE UPDATED ------
Read UBC GIF 2D observation file and generate arrays for tx-rx location
:param string fileName: path to the UBC GIF 2D model file
:rtype: (DC.Src, DC.Rx, ??, ??)
:return: source_locs, rx_locs, ??, ??
Input:
:param fileName, path to the UBC GIF 2D model file
Output:
:param rx, tx
:return
Created on Thu Nov 12 13:14:10 2015
@author: dominiquef
"""
from SimPEG import np
@@ -791,9 +822,11 @@ def readUBC_DC2Dpre(fileName):
Read UBC GIF DCIP 2D observation file and generate arrays for tx-rx location
Input:
:param string fileName: path to the UBC GIF 3D obs file
:rtype: DC.Survey
:return: DCsurvey
:param fileName, path to the UBC GIF 3D obs file
Output:
DCsurvey
:return
Created on Mon March 9th, 2016 << Doug's 70th Birthday !! >>
@@ -855,9 +888,12 @@ def readUBC_DC2DMesh(fileName):
"""
Read UBC GIF 2DTensor mesh and generate 2D Tensor mesh in simpeg
:param string fileName: path to the UBC GIF mesh file
:rtype: Mesh.TensorMesh
:return: SimPEG TensorMesh 2D object
Input:
:param fileName, path to the UBC GIF mesh file
Output:
:param SimPEG TensorMesh 2D object
:return
Created on Thu Nov 12 13:14:10 2015
@@ -923,9 +959,12 @@ def xy_2_lineID(DCsurvey):
they were collected. May need to generalize for random
point locations, but will be more expensive
:param numpy.array DCdict: Vectors of station location
:rtype: numpy.array
:return: LineID Vector of integers
Input:
:param DCdict Vectors of station location
Output:
:param LineID Vector of integers
:return
Created on Thu Feb 11, 2015
+92 -147
View File
@@ -144,18 +144,12 @@ class BetaSchedule(InversionDirective):
if self.debug: print 'BetaSchedule is cooling Beta. Iteration: %d' % self.opt.iter
self.invProb.beta /= self.coolingFactor
class TargetMisfit(InversionDirective):
chifact = 1.
phi_d_star = None
@property
def target(self):
if getattr(self, '_target', None) is None:
if self.phi_d_star is None:
self.phi_d_star = 0.5 * self.survey.nD
self._target = self.chifact * self.phi_d_star # the factor of 0.5 is because we do phid = 0.5*|| dpred - dobs||^2
self._target = self.survey.nD*0.5
return self._target
@target.setter
def target(self, val):
@@ -213,189 +207,124 @@ class SaveOutputEveryIteration(_SaveEveryIteration):
f.close()
class SaveOutputDictEveryIteration(_SaveEveryIteration):
"""
Saves inversion parameters at every iteraion.
"""
"""SaveOutputDictEveryIteration"""
def initialize(self):
print "SimPEG.SaveOutputDictEveryIteration will save your inversion progress as dictionary: '###-%s.npz'"%self.fileName
def endIter(self):
# Initialize the output dict
outDict = {}
# Save the data.
outDict['iter'] = self.opt.iter
outDict['beta'] = self.invProb.beta
outDict['phi_d'] = self.invProb.phi_d
outDict['phi_ms'] = self.reg._evalSmall(self.invProb.curModel)
outDict['phi_mx'] = self.reg._evalSmoothx(self.invProb.curModel)
outDict['phi_my'] = self.reg._evalSmoothy(self.invProb.curModel) if self.prob.mesh.dim >= 2 else 'NaN'
outDict['phi_mz'] = self.reg._evalSmoothz(self.invProb.curModel) if self.prob.mesh.dim==3 else 'NaN'
outDict['f'] = self.opt.f
outDict['m'] = self.invProb.curModel
outDict['dpred'] = self.invProb.dpred
ms = self.reg.Ws * ( self.reg.mapping * (self.invProb.curModel - self.reg.mref) )
phi_ms = 0.5*ms.dot(ms)
if self.reg.mrefInSmooth == True:
mref = self.reg.mref
else:
mref = 0
mx = self.reg.Wx * ( self.reg.mapping * (self.invProb.curModel - mref) )
phi_mx = 0.5 * mx.dot(mx)
if self.prob.mesh.dim >= 2:
my = self.reg.Wy * ( self.reg.mapping * (self.invProb.curModel - mref) )
phi_my = 0.5 * my.dot(my)
else:
phi_my = 'NaN'
if self.prob.mesh.dim==3:
mz = self.reg.Wz * ( self.reg.mapping * (self.invProb.curModel - mref) )
phi_mz = 0.5 * mz.dot(mz)
else:
phi_mz = 'NaN'
# Save the file as a npz
np.savez('{:03d}-{:s}'.format(self.opt.iter,self.fileName), outDict)
np.savez('{:03d}-{:s}'.format(self.opt.iter,self.fileName), iter=self.opt.iter, beta=self.invProb.beta, phi_d=self.invProb.phi_d, phi_m=self.invProb.phi_m, phi_ms=phi_ms, phi_mx=phi_mx, phi_my=phi_my, phi_mz=phi_mz,f=self.opt.f, m=self.invProb.curModel,dpred=self.invProb.dpred)
# class UpdateReferenceModel(Parameter):
# mref0 = None
# def nextIter(self):
# mref = getattr(self, 'm_prev', None)
# if mref is None:
# if self.debug: print 'UpdateReferenceModel is using mref0'
# mref = self.mref0
# self.m_prev = self.invProb.m_current
# return mref
class Update_IRLS(InversionDirective):
eps_min = None
eps_p = None
eps_q = None
norms = [2.,2.,2.,2.]
factor = None
gamma = None
phi_m_last = None
phi_d_last = None
f_old = None
f_min_change = 1e-2
beta_tol = 5e-2
# Solving parameter for IRLS (mode:2)
IRLSiter = 0
minGNiter = 5
maxIRLSiter = 10
iterStart = 0
# Beta schedule
coolingFactor = 2.
coolingRate = 1
mode = 1
@property
def target(self):
if getattr(self, '_target', None) is None:
self._target = self.survey.nD*0.5
return self._target
@target.setter
def target(self, val):
self._target = val
def initialize(self):
if self.mode == 1:
self.reg.norms = [2., 2., 2., 2.]
# Scale the regularization for changes in norm
if getattr(self, 'phi_m_last', None) is not None:
self.reg.curModel = self.invProb.curModel
self.reg.gamma = 1.
phim_new = self.reg.eval(self.invProb.curModel)
self.gamma = self.phi_m_last / phim_new
self.reg.curModel = self.invProb.curModel
self.reg.gamma = self.gamma
self.reg._W = None
if getattr(self, 'phi_d_last', None) is None:
self.phi_d_last = self.invProb.phi_d
def endIter(self):
# Cool the threshold parameter if required
if getattr(self, 'factor', None) is not None:
eps = self.reg.eps / self.factor
# After reaching target misfit with l2-norm, switch to IRLS (mode:2)
if self.invProb.phi_d < self.target and self.mode == 1:
print "Convergence with smooth l2-norm regularization: Start IRLS steps..."
self.mode = 2
print self.eps_p, self.eps_q, self.norms
self.reg.eps_p = self.eps_p
self.reg.eps_q = self.eps_q
self.reg.norms = self.norms
self.coolingFactor = 1.
self.coolingRate = 1
self.iterStart = self.opt.iter
self.phi_d_last = self.invProb.phi_d
self.phi_m_last = self.invProb.phi_m_last
self.reg.l2model = self.invProb.curModel
self.reg.curModel = self.invProb.curModel
if getattr(self, 'f_old', None) is None:
self.f_old = self.reg.eval(self.invProb.curModel)#self.invProb.evalFunction(self.invProb.curModel, return_g=False, return_H=False)
# Beta Schedule
if self.opt.iter > 0 and self.opt.iter % self.coolingRate == 0:
if self.debug: print 'BetaSchedule is cooling Beta. Iteration: %d' % self.opt.iter
self.invProb.beta /= self.coolingFactor
# Only update after GN iterations
if (self.opt.iter-self.iterStart) % self.minGNiter == 0 and self.mode==2:
self.IRLSiter += 1
phim_new = self.reg.eval(self.invProb.curModel)
self.f_change = np.abs(self.f_old - phim_new) / self.f_old
print "Regularization decrease: %6.3e" % (self.f_change)
# Check for maximum number of IRLS cycles
if self.IRLSiter == self.maxIRLSiter:
print "Reach maximum number of IRLS cycles: %i" % self.maxIRLSiter
self.opt.stopNextIteration = True
return
# Check if the function has changed enough
if self.f_change < self.f_min_change and self.IRLSiter > 1:
print "Minimum decrease in regularization. End of IRLS"
self.opt.stopNextIteration = True
return
if getattr(self, 'eps_min', None) is not None:
self.reg.eps = np.max([self.eps_min,eps])
else:
self.f_old = phim_new
self.reg.eps = eps
# Cool the threshold parameter if required
if getattr(self, 'factor', None) is not None:
eps = self.reg.eps / self.factor
# Get phi_m at the end of current iteration
self.phi_m_last = self.invProb.phi_m_last
self.reg._W = None
# Update the model used for the IRLS weights
self.reg.curModel = self.invProb.curModel
if getattr(self, 'eps_min', None) is not None:
self.reg.eps = np.max([self.eps_min,eps])
else:
self.reg.eps = eps
# Temporarely set gamma to 1. to get raw phi_m
self.reg.gamma = 1.
# Get phi_m at the end of current iteration
self.phi_m_last = self.invProb.phi_m_last
# Reset the regularization matrices so that it is
# recalculated for current model
self.reg._Wsmall = None
self.reg._Wx = None
self.reg._Wy = None
self.reg._Wz = None
# Update the model used for the IRLS weights
self.reg.curModel = self.invProb.curModel
# Temporarely set gamma to 1. to get raw phi_m
self.reg.gamma = 1.
# Compute new model objective function value
phim_new = self.reg.eval(self.invProb.curModel)
# Update gamma to scale the regularization between IRLS iterations
self.reg.gamma = self.phi_m_last / phim_new
# Reset the regularization matrices again for new gamma
self.reg._Wsmall = None
self.reg._Wx = None
self.reg._Wy = None
self.reg._Wz = None
# Check if misfit is within the tolerance, otherwise scale beta
val = self.invProb.phi_d / (self.survey.nD*0.5)
if np.abs(1.-val) > self.beta_tol:
self.invProb.beta = self.invProb.beta * self.survey.nD*0.5 / self.invProb.phi_d
# Compute new model objective function value
phim_new = self.reg.eval(self.invProb.curModel)
# Update gamma to scale the regularization between IRLS iterations
self.reg.gamma = self.phi_m_last / phim_new
# Set the weighting matrix to None so that it is recomputed next time
# it is called in the inversion
self.reg._W = None
class Update_lin_PreCond(InversionDirective):
"""
Create a Jacobi preconditioner for the linear problem
"""
onlyOnStart=False
def initialize(self):
if getattr(self.opt, 'approxHinv', None) is None:
# Update the pre-conditioner
diagA = np.sum(self.prob.G**2.,axis=0) + self.invProb.beta*(self.reg.W.T*self.reg.W).diagonal() #* (self.reg.mapping * np.ones(self.reg.curModel.size))**2.
PC = Utils.sdiag((self.prob.mapping.deriv(None).T *diagA)**-1.)
self.opt.approxHinv = PC
def endIter(self):
# Cool the threshold parameter
if self.onlyOnStart==True:
return
if getattr(self.opt, 'approxHinv', None) is not None:
# Update the pre-conditioner
diagA = np.sum(self.prob.G**2.,axis=0) + self.invProb.beta*(self.reg.W.T*self.reg.W).diagonal() #* (self.reg.mapping * np.ones(self.reg.curModel.size))**2.
@@ -428,3 +357,19 @@ class Update_Wj(InversionDirective):
JtJdiag = JtJdiag / max(JtJdiag)
self.reg.wght = JtJdiag
class Scale_Beta(InversionDirective):
"""
Instead of a linear cooling schedule, beta is allowed to change based
on the ratio between the target misfit and the current data misfit. The
update is done only if the misfit is outside some threshold bounds.
"""
tol = 0.05
def endIter(self):
# Check if misfit is within the tolerance, otherwise adjust beta
val = self.invProb.phi_d / (self.survey.nD*0.5)
if np.abs(1.-val) > self.tol:
self.invProb.beta = self.invProb.beta * self.survey.nD*0.5 / self.invProb.phi_d
-118
View File
@@ -1,118 +0,0 @@
import numpy as np
from scipy.constants import mu_0, pi
from scipy import special
def DCAnalyticHalf(txloc, rxlocs, sigma, earth_type="wholespace"):
"""
Analytic solution for electric potential from a postive pole
:param array txloc: a xyz location of A (+) electrode (np.r_[xa, ya, za])
:param list rxlocs: xyz locations of M (+) and N (-) electrodes [M, N]
e.g.
rxlocs = [M, N]
M: xyz locations of M (+) electrode (np.c_[xmlocs, ymlocs, zmlocs])
N: xyz locations of N (-) electrode (np.c_[xnlocs, ynlocs, znlocs])
:param float or complex sigma: values of conductivity
:param string earth_type: values of conductivity ("wholsespace" or "halfspace")
"""
M = rxlocs[0]
N = rxlocs[1]
rM = np.sqrt( (M[:,0]-txloc[0])**2 + (M[:,1]-txloc[1])**2 + (M[:,2]-txloc[1])**2 )
rN = np.sqrt( (N[:,0]-txloc[0])**2 + (N[:,1]-txloc[1])**2 + (N[:,2]-txloc[1])**2 )
phiM = 1./(4*np.pi*rM*sigma)
phiN = 1./(4*np.pi*rN*sigma)
phi = phiM - phiN
if earth_type == "halfspace":
phi *= 2
return phi
deg2rad = lambda deg: deg/180.*np.pi
rad2deg = lambda rad: rad*180./np.pi
def DCAnalyticSphere(txloc, rxloc, xc, radius, sigma, sigma1, \
field_type = "secondary", order=12, halfspace=False):
# def DCSpherePointCurrent(txloc, rxloc, xc, radius, rho, rho1, \
# field_type = "secondary", order=12):
"""
Parameters:
:param array txloc: A (+) current electrode location (x,y,z)
:param array xc: x center of depressed sphere
:param array rxloc: M(+) electrode locations / (Nx3 array, # of electrodes)
:param float radius: radius (float): radius of the sphere (m)
:param float rho: resistivity of the background (ohm-m)
:param float rho1: resistivity of the sphere
:param string field_type: : "secondary", "total", "primary"
(default="secondary")
"secondary": secondary potential only due to sphere
"primary": primary potential from the point source
"total": "secondary"+"primary"
:param float order: maximum order of Legendre polynomial (default=12)
Written by Seogi Kang (skang@eos.ubc.ca)
Ph.D. Candidate of University of British Columbia, Canada
"""
Pleg = []
# Compute Legendre Polynomial
for i in range(order):
Pleg.append(special.legendre(i, monic=0))
rho = 1./sigma
rho1 = 1./sigma1
# Center of the sphere should be aligned in txloc in y-direction
yc = txloc[1]
xyz = np.c_[rxloc[:,0]-xc, rxloc[:,1]-yc, rxloc[:,2]]
r = np.sqrt( (xyz**2).sum(axis=1) )
x0 = abs(txloc[0]-xc)
costheta = xyz[:,0]/r * (txloc[0]-xc)/x0
phi = np.zeros_like(r)
R = (r**2+x0**2.-2.*r*x0*costheta)**0.5
# primary potential in a whole space
prim = rho*1./(4*np.pi*R)
if field_type =="primary":
return prim
sphind = r < radius
out = np.zeros_like(r)
for n in range(order):
An, Bn = AnBnfun(n, radius, x0, rho, rho1)
dumout = An*r[~sphind]**(-n-1.)*Pleg[n](costheta[~sphind])
out[~sphind] += dumout
dumin = Bn*r[sphind]**(n)*Pleg[n](costheta[sphind])
out[sphind] += dumin
out[~sphind] += prim[~sphind]
if halfspace:
scale = 2
else:
scale = 1
if field_type == "secondary":
return scale*(out-prim)
elif field_type == "total":
return scale*out
def AnBnfun(n, radius, x0, rho, rho1, I=1.):
const = I*rho/(4*np.pi)
bunmo = n*rho + (n+1)*rho1
An = const * radius**(2*n+1) / x0 ** (n+1.) * n * \
(rho1-rho) / bunmo
Bn = const * 1. / x0 ** (n+1.) * (2*n+1) * (rho1) / bunmo
return An, Bn
-1
View File
@@ -1,4 +1,3 @@
from TDEM import hzAnalyticDipoleT
from FDEM import hzAnalyticDipoleF
from FDEMcasing import *
from DC import DCAnalyticHalf, DCAnalyticSphere
+11 -33
View File
@@ -1,7 +1,6 @@
from SimPEG import Survey, Problem, Utils, Models, Maps, PropMaps, np, sp, Solver as SimpegSolver
from scipy.constants import mu_0
class EMPropMap(Maps.PropMap):
"""
Property Map for EM Problems. The electrical conductivity (\\(\\sigma\\)) is the default inversion property, and the default value of the magnetic permeability is that of free space (\\(\\mu = 4\\pi\\times 10^{-7} \\) H/m)
@@ -62,15 +61,6 @@ class BaseEMProblem(Problem.BaseProblem):
self._Me = self.mesh.getEdgeInnerProduct()
return self._Me
@property
def MeI(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MeI', None) is None:
self._MeI = self.mesh.getEdgeInnerProduct(invMat=True)
return self._MeI
@property
def Mf(self):
"""
@@ -80,20 +70,6 @@ class BaseEMProblem(Problem.BaseProblem):
self._Mf = self.mesh.getFaceInnerProduct()
return self._Mf
@property
def MfI(self):
"""
Face inner product matrix
"""
if getattr(self, '_MfI', None) is None:
self._MfI = self.mesh.getFaceInnerProduct(invMat=True)
return self._MfI
@property
def Vol(self):
if getattr(self, '_Vol', None) is None:
self._Vol = Utils.sdiag(self.mesh.vol)
return self._Vol
# ----- Magnetic Permeability ----- #
@property
@@ -151,6 +127,7 @@ class BaseEMProblem(Problem.BaseProblem):
"""
return self.mesh.getEdgeInnerProductDeriv(self.curModel.sigma)(u) * self.curModel.sigmaDeriv
@property
def MeSigmaI(self):
"""
@@ -169,7 +146,10 @@ class BaseEMProblem(Problem.BaseProblem):
dMeSigmaI_dI = -self.MeSigmaI**2
dMe_dsig = self.mesh.getEdgeInnerProductDeriv(self.curModel.sigma)(u)
return dMeSigmaI_dI * ( dMe_dsig * self.curModel.sigmaDeriv )
dsig_dm = self.curModel.sigmaDeriv
return dMeSigmaI_dI * ( dMe_dsig * ( dsig_dm))
# return self.mesh.getEdgeInnerProductDeriv(self.curModel.sigma, invMat=True)(u)
@property
def MfRho(self):
@@ -185,7 +165,8 @@ class BaseEMProblem(Problem.BaseProblem):
"""
Derivative of :code:`MfRho` with respect to the model.
"""
return self.mesh.getFaceInnerProductDeriv(self.curModel.rho)(u) * self.curModel.rhoDeriv
return self.mesh.getFaceInnerProductDeriv(self.curModel.rho)(u) * (-Utils.sdiag(self.curModel.rho**2) * self.curModel.sigmaDeriv)
# self.curModel.rhoDeriv
@property
def MfRhoI(self):
@@ -202,10 +183,7 @@ class BaseEMProblem(Problem.BaseProblem):
"""
Derivative of :code:`MfRhoI` with respect to the model.
"""
dMfRhoI_dI = -self.MfRhoI**2
dMf_drho = self.mesh.getFaceInnerProductDeriv(self.curModel.rho)(u)
return dMfRhoI_dI * ( dMf_drho * self.curModel.rhoDeriv )
return self.mesh.getFaceInnerProductDeriv(self.curModel.rho, invMat=True)(u) * self.curModel.rhoDeriv
class BaseEMSurvey(Survey.BaseSurvey):
@@ -214,7 +192,7 @@ class BaseEMSurvey(Survey.BaseSurvey):
self.srcList = srcList
Survey.BaseSurvey.__init__(self, **kwargs)
def eval(self, f):
def eval(self, u):
"""
Project fields to receiver locations
:param Fields u: fields object
@@ -224,8 +202,8 @@ class BaseEMSurvey(Survey.BaseSurvey):
data = Survey.Data(self)
for src in self.srcList:
for rx in src.rxList:
data[src, rx] = rx.eval(src, self.mesh, f)
data[src, rx] = rx.eval(src, self.mesh, u)
return data
def evalDeriv(self, f):
def evalDeriv(self, u):
raise Exception('Use Receivers to project fields deriv.')
@@ -1,7 +1,7 @@
from SimPEG import Problem, Utils, np, sp, Solver as SimpegSolver
from scipy.constants import mu_0
from SurveyFDEM import Survey as SurveyFDEM
from FieldsFDEM import Fields, Fields3D_e, Fields3D_b, Fields3D_h, Fields3D_j
from FieldsFDEM import Fields, Fields_e, Fields_b, Fields_h, Fields_j
from SimPEG.EM.Base import BaseEMProblem
from SimPEG.EM.Utils import omega
@@ -17,8 +17,8 @@ class BaseFDEMProblem(BaseEMProblem):
\mathbf{C} \mathbf{e} + i \omega \mathbf{b} = \mathbf{s_m} \\\\
{\mathbf{C}^{\\top} \mathbf{M_{\mu^{-1}}^f} \mathbf{b} - \mathbf{M_{\sigma}^e} \mathbf{e} = \mathbf{s_e}}
if using the E-B formulation (:code:`Problem3D_e`
or :code:`Problem3D_b`). Note that in this case, :math:`\mathbf{s_e}` is an integrated quantity.
if using the E-B formulation (:code:`Problem_e`
or :code:`Problem_b`). Note that in this case, :math:`\mathbf{s_e}` is an integrated quantity.
If we write Maxwell's equations in terms of
\\\(\\\mathbf{h}\\\) and current density \\\(\\\mathbf{j}\\\)
@@ -28,7 +28,7 @@ class BaseFDEMProblem(BaseEMProblem):
\mathbf{C}^{\\top} \mathbf{M_{\\rho}^f} \mathbf{j} + i \omega \mathbf{M_{\mu}^e} \mathbf{h} = \mathbf{s_m} \\\\
\mathbf{C} \mathbf{h} - \mathbf{j} = \mathbf{s_e}
if using the H-J formulation (:code:`Problem3D_j` or :code:`Problem3D_h`). Note that here, :math:`\mathbf{s_m}` is an integrated quantity.
if using the H-J formulation (:code:`Problem_j` or :code:`Problem_h`). Note that here, :math:`\mathbf{s_m}` is an integrated quantity.
The problem performs the elimination so that we are solving the system for \\\(\\\mathbf{e},\\\mathbf{b},\\\mathbf{j} \\\) or \\\(\\\mathbf{h}\\\)
"""
@@ -87,7 +87,7 @@ class BaseFDEMProblem(BaseEMProblem):
du_dm_v = Ainv * ( - dA_dm_v + dRHS_dm_v )
for rx in src.rxList:
df_dmFun = getattr(f, '_{0}Deriv'.format(rx.projField), None)
df_dmFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_dm_v = df_dmFun(src, du_dm_v, v, adjoint=False)
Jv[src, rx] = rx.evalDeriv(src, self.mesh, f, df_dm_v)
Ainv.clean()
@@ -125,7 +125,7 @@ class BaseFDEMProblem(BaseEMProblem):
for rx in src.rxList:
PTv = rx.evalDeriv(src, self.mesh, f, v[src, rx], adjoint=True) # wrt f, need possibility wrt m
df_duTFun = getattr(f, '_{0}Deriv'.format(rx.projField), None)
df_duTFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_duT, df_dmT = df_duTFun(src, None, PTv, adjoint=True)
ATinvdf_duT = ATinv * df_duT
@@ -137,9 +137,10 @@ class BaseFDEMProblem(BaseEMProblem):
df_dmT = df_dmT + du_dmT
# TODO: this should be taken care of by the reciever?
if rx.component is 'real':
real_or_imag = rx.projComp
if real_or_imag is 'real':
Jtv += np.array(df_dmT, dtype=complex).real
elif rx.component is 'imag':
elif real_or_imag is 'imag':
Jtv += - np.array(df_dmT, dtype=complex).real
else:
raise Exception('Must be real or imag')
@@ -166,7 +167,6 @@ class BaseFDEMProblem(BaseEMProblem):
for i, src in enumerate(Srcs):
smi, sei = src.eval(self)
#Why are you adding?
s_m[:,i] = s_m[:,i] + smi
s_e[:,i] = s_e[:,i] + sei
@@ -177,7 +177,7 @@ class BaseFDEMProblem(BaseEMProblem):
################################ E-B Formulation #########################################
##########################################################################################
class Problem3D_e(BaseFDEMProblem):
class Problem_e(BaseFDEMProblem):
"""
By eliminating the magnetic flux density using
@@ -199,7 +199,7 @@ class Problem3D_e(BaseFDEMProblem):
_solutionType = 'eSolution'
_formulation = 'EB'
fieldsPair = Fields3D_e
fieldsPair = Fields_e
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
@@ -288,7 +288,7 @@ class Problem3D_e(BaseFDEMProblem):
return C.T * (MfMui * s_mDeriv(v)) -1j * omega(freq) * s_eDeriv(v)
class Problem3D_b(BaseFDEMProblem):
class Problem_b(BaseFDEMProblem):
"""
We eliminate :math:`\mathbf{e}` using
@@ -310,7 +310,7 @@ class Problem3D_b(BaseFDEMProblem):
_solutionType = 'bSolution'
_formulation = 'EB'
fieldsPair = Fields3D_b
fieldsPair = Fields_b
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
@@ -436,7 +436,7 @@ class Problem3D_b(BaseFDEMProblem):
##########################################################################################
class Problem3D_j(BaseFDEMProblem):
class Problem_j(BaseFDEMProblem):
"""
We eliminate \\\(\\\mathbf{h}\\\) using
@@ -458,7 +458,7 @@ class Problem3D_j(BaseFDEMProblem):
_solutionType = 'jSolution'
_formulation = 'HJ'
fieldsPair = Fields3D_j
fieldsPair = Fields_j
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
@@ -577,7 +577,7 @@ class Problem3D_j(BaseFDEMProblem):
class Problem3D_h(BaseFDEMProblem):
class Problem_h(BaseFDEMProblem):
"""
We eliminate \\\(\\\mathbf{j}\\\) using
@@ -596,7 +596,7 @@ class Problem3D_h(BaseFDEMProblem):
_solutionType = 'hSolution'
_formulation = 'HJ'
fieldsPair = Fields3D_h
fieldsPair = Fields_h
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
+9 -9
View File
@@ -160,9 +160,9 @@ class Fields(SimPEG.Problem.Fields):
return self._jDeriv_u(src, v, adjoint), self._jDeriv_m(src, v, adjoint)
return np.array(self._jDeriv_u(src, du_dm_v, adjoint) + self._jDeriv_m(src, v, adjoint), dtype = complex)
class Fields3D_e(Fields):
class Fields_e(Fields):
"""
Fields object for Problem3D_e.
Fields object for Problem_e.
:param Mesh mesh: mesh
:param Survey survey: survey
@@ -181,7 +181,7 @@ class Fields3D_e(Fields):
}
def __init__(self, mesh, survey, **kwargs):
Fields.__init__(self, mesh, survey, **kwargs)
Fields.__init__(self,mesh,survey,**kwargs)
def startup(self):
self.prob = self.survey.prob
@@ -426,9 +426,9 @@ class Fields3D_e(Fields):
class Fields3D_b(Fields):
class Fields_b(Fields):
"""
Fields object for Problem3D_b.
Fields object for Problem_b.
:param Mesh mesh: mesh
:param Survey survey: survey
@@ -693,9 +693,9 @@ class Fields3D_b(Fields):
return Zero()
class Fields3D_j(Fields):
class Fields_j(Fields):
"""
Fields object for Problem3D_j.
Fields object for Problem_j.
:param Mesh mesh: mesh
:param Survey survey: survey
@@ -988,9 +988,9 @@ class Fields3D_j(Fields):
return 1./(1j * omega(src.freq)) * VI * (self._aveE2CCV * ( s_mDeriv(v) - self._edgeCurl.T * ( self._MfRhoDeriv(jSolution) * v ) ) )
class Fields3D_h(Fields):
class Fields_h(Fields):
"""
Fields object for Problem3D_h.
Fields object for Problem_h.
:param Mesh mesh: mesh
:param Survey survey: survey
-126
View File
@@ -1,126 +0,0 @@
import SimPEG
from SimPEG import sp
class BaseRx(SimPEG.Survey.BaseRx):
"""
Frequency domain receiver base class
:param numpy.ndarray locs: receiver locations (ie. :code:`np.r_[x,y,z]`)
:param string orientation: receiver orientation 'x', 'y' or 'z'
:param string component: real or imaginary component 'real' or 'imag'
"""
def __init__(self, locs, orientation=None, component=None):
assert(orientation in ['x','y','z']), "Orientation %s not known. Orientation must be in 'x', 'y', 'z'. Arbitrary orientations have not yet been implemented."%orientation
assert(component in ['real', 'imag']), "'component' must be 'real' or 'imag', not %s"%component
self.projComp = orientation
self.component = component
SimPEG.Survey.BaseRx.__init__(self, locs, rxType=None) #TODO: remove rxType from baseRx
def projGLoc(self, u):
"""Grid Location projection (e.g. Ex Fy ...)"""
return u._GLoc(self.projField) + self.projComp
def eval(self, src, mesh, f):
"""
Project fields to recievers to get data.
:param Source src: FDEM source
:param Mesh mesh: mesh used
:param Fields f: fields object
:rtype: numpy.ndarray
:return: fields projected to recievers
"""
P = self.getP(mesh, self.projGLoc(f))
f_part_complex = f[src, self.projField]
f_part = getattr(f_part_complex, self.component) # get the real or imag component
return P*f_part
def evalDeriv(self, src, mesh, f, v, adjoint=False):
"""
Derivative of projected fields with respect to the inversion model times a vector.
:param Source src: FDEM source
:param Mesh mesh: mesh used
:param Fields f: fields object
:param numpy.ndarray v: vector to multiply
:rtype: numpy.ndarray
:return: fields projected to recievers
"""
P = self.getP(mesh, self.projGLoc(f))
if not adjoint:
Pv_complex = P * v
Pv = getattr(Pv_complex, self.component)
elif adjoint:
Pv_real = P.T * v
if self.component == 'imag':
Pv = 1j*Pv_real
elif self.component == 'real':
Pv = Pv_real.astype(complex)
else:
raise NotImplementedError('must be real or imag')
return Pv
class Point_e(BaseRx):
"""
Electric field FDEM receiver
:param numpy.ndarray locs: receiver locations (ie. :code:`np.r_[x,y,z]`)
:param string orientation: receiver orientation 'x', 'y' or 'z'
:param string component: real or imaginary component 'real' or 'imag'
"""
def __init__(self, locs, orientation=None, component=None):
self.projField = 'e'
super(Point_e, self).__init__(locs, orientation, component)
class Point_b(BaseRx):
"""
Magnetic flux FDEM receiver
:param numpy.ndarray locs: receiver locations (ie. :code:`np.r_[x,y,z]`)
:param string orientation: receiver orientation 'x', 'y' or 'z'
:param string component: real or imaginary component 'real' or 'imag'
"""
def __init__(self, locs, orientation=None, component=None):
self.projField = 'b'
super(Point_b, self).__init__(locs, orientation, component)
class Point_h(BaseRx):
"""
Magnetic field FDEM receiver
:param numpy.ndarray locs: receiver locations (ie. :code:`np.r_[x,y,z]`)
:param string orientation: receiver orientation 'x', 'y' or 'z'
:param string component: real or imaginary component 'real' or 'imag'
"""
def __init__(self, locs, orientation=None, component=None):
self.projField = 'h'
super(Point_h, self).__init__(locs, orientation, component)
class Point_j(BaseRx):
"""
Current density FDEM receiver
:param numpy.ndarray locs: receiver locations (ie. :code:`np.r_[x,y,z]`)
:param string orientation: receiver orientation 'x', 'y' or 'z'
:param string component: real or imaginary component 'real' or 'imag'
"""
def __init__(self, locs, orientation=None, component=None):
self.projField = 'j'
super(Point_j, self).__init__(locs, orientation, component)
+22 -31
View File
@@ -9,17 +9,12 @@ class BaseSrc(Survey.BaseSrc):
"""
freq = None
integrate = False
_ePrimary = None
_bPrimary = None
_hPrimary = None
_jPrimary = None
def __init__(self, rxList, **kwargs):
Survey.BaseSrc.__init__(self, rxList, **kwargs)
# rxPair = RxFDEM
integrate = True
def eval(self, prob):
"""
Evaluate the source terms.
- :math:`s_m` : magnetic source term
- :math:`s_e` : electric source term
@@ -56,9 +51,7 @@ class BaseSrc(Survey.BaseSrc):
:rtype: numpy.ndarray
:return: primary magnetic flux density
"""
if self._bPrimary is None:
return Zero()
return self._bPrimary
return Zero()
def hPrimary(self, prob):
"""
@@ -68,9 +61,7 @@ class BaseSrc(Survey.BaseSrc):
:rtype: numpy.ndarray
:return: primary magnetic field
"""
if self._hPrimary is None:
return Zero()
return self._hPrimary
return Zero()
def ePrimary(self, prob):
"""
@@ -80,9 +71,7 @@ class BaseSrc(Survey.BaseSrc):
:rtype: numpy.ndarray
:return: primary electric field
"""
if self._ePrimary is None:
return Zero()
return self._ePrimary
return Zero()
def jPrimary(self, prob):
"""
@@ -92,9 +81,7 @@ class BaseSrc(Survey.BaseSrc):
:rtype: numpy.ndarray
:return: primary current density
"""
if self._jPrimary is None:
return Zero()
return self._jPrimary
return Zero()
def s_m(self, prob):
"""
@@ -149,14 +136,15 @@ class RawVec_e(BaseSrc):
:param list rxList: receiver list
:param float freq: frequency
:param numpy.array s_e: electric source term
:param bool integrate: Integrate the source term (multiply by Me) [False]
:param bool integrate: Integrate the source term (multiply by Me) [True]
"""
def __init__(self, rxList, freq, s_e, **kwargs):
def __init__(self, rxList, freq, s_e, integrate=True): #, ePrimary=None, bPrimary=None, hPrimary=None, jPrimary=None):
self._s_e = np.array(s_e, dtype=complex)
self.freq = float(freq)
self.integrate = integrate
BaseSrc.__init__(self, rxList, **kwargs)
BaseSrc.__init__(self, rxList)
def s_e(self, prob):
"""
@@ -178,14 +166,15 @@ class RawVec_m(BaseSrc):
:param float freq: frequency
:param rxList: receiver list
:param numpy.array s_m: magnetic source term
:param bool integrate: Integrate the source term (multiply by Me) [False]
:param bool integrate: Integrate the source term (multiply by Me) [True]
"""
def __init__(self, rxList, freq, s_m, **kwargs): #ePrimary=Zero(), bPrimary=Zero(), hPrimary=Zero(), jPrimary=Zero()):
def __init__(self, rxList, freq, s_m, integrate=True): #ePrimary=Zero(), bPrimary=Zero(), hPrimary=Zero(), jPrimary=Zero()):
self._s_m = np.array(s_m, dtype=complex)
self.freq = float(freq)
self.integrate = integrate
BaseSrc.__init__(self, rxList, **kwargs)
BaseSrc.__init__(self, rxList)
def s_m(self, prob):
"""
@@ -208,13 +197,14 @@ class RawVec(BaseSrc):
:param float freq: frequency
:param numpy.array s_m: magnetic source term
:param numpy.array s_e: electric source term
:param bool integrate: Integrate the source term (multiply by Me) [False]
:param bool integrate: Integrate the source term (multiply by Me) [True]
"""
def __init__(self, rxList, freq, s_m, s_e, **kwargs):
def __init__(self, rxList, freq, s_m, s_e, integrate=True):
self._s_m = np.array(s_m, dtype=complex)
self._s_e = np.array(s_e, dtype=complex)
self.freq = float(freq)
BaseSrc.__init__(self, rxList, **kwargs)
self.integrate = integrate
BaseSrc.__init__(self, rxList)
def s_m(self, prob):
"""
@@ -288,13 +278,14 @@ class MagDipole(BaseSrc):
:param float mu: background magnetic permeability
"""
def __init__(self, rxList, freq, loc, orientation='Z', moment=1., mu=mu_0, **kwargs):
def __init__(self, rxList, freq, loc, orientation='Z', moment=1., mu=mu_0):
self.freq = float(freq)
self.loc = loc
self.orientation = orientation
assert orientation in ['X','Y','Z'], "Orientation (right now) doesn't actually do anything! The methods in SrcUtils should take care of this..."
self.moment = moment
self.mu = mu
self.integrate = False
BaseSrc.__init__(self, rxList)
def bPrimary(self, prob):
@@ -552,7 +543,7 @@ class CircularLoop(BaseSrc):
if not prob.mesh.isSymmetric:
# TODO ?
raise NotImplementedError('Non-symmetric cyl mesh not implemented yet!')
a = MagneticLoopVectorPotential(self.loc, gridY, 'y', moment=self.radius, mu=self.mu)
a = MagneticDipoleVectorPotential(self.loc, gridY, 'y', moment=self.radius, mu=self.mu)
else:
srcfct = MagneticDipoleVectorPotential
+119 -2
View File
@@ -4,9 +4,126 @@ from SimPEG.EM.Base import BaseEMSurvey
from scipy.constants import mu_0
from SimPEG.Utils import Zero, Identity
import SrcFDEM as Src
import RxFDEM as Rx
from SimPEG import sp
####################################################
# Receivers
####################################################
class Rx(SimPEG.Survey.BaseRx):
"""
Frequency domain receivers
:param numpy.ndarray locs: receiver locations (ie. :code:`np.r_[x,y,z]`)
:param string rxType: reciever type from knownRxTypes
"""
knownRxTypes = {
'exr':['e', 'x', 'real'],
'eyr':['e', 'y', 'real'],
'ezr':['e', 'z', 'real'],
'exi':['e', 'x', 'imag'],
'eyi':['e', 'y', 'imag'],
'ezi':['e', 'z', 'imag'],
'bxr':['b', 'x', 'real'],
'byr':['b', 'y', 'real'],
'bzr':['b', 'z', 'real'],
'bxi':['b', 'x', 'imag'],
'byi':['b', 'y', 'imag'],
'bzi':['b', 'z', 'imag'],
'jxr':['j', 'x', 'real'],
'jyr':['j', 'y', 'real'],
'jzr':['j', 'z', 'real'],
'jxi':['j', 'x', 'imag'],
'jyi':['j', 'y', 'imag'],
'jzi':['j', 'z', 'imag'],
'hxr':['h', 'x', 'real'],
'hyr':['h', 'y', 'real'],
'hzr':['h', 'z', 'real'],
'hxi':['h', 'x', 'imag'],
'hyi':['h', 'y', 'imag'],
'hzi':['h', 'z', 'imag'],
}
radius = None
def __init__(self, locs, rxType):
SimPEG.Survey.BaseRx.__init__(self, locs, rxType)
@property
def projField(self):
"""Field Type projection (e.g. e b ...)"""
return self.knownRxTypes[self.rxType][0]
@property
def projComp(self):
"""Component projection (real/imag)"""
return self.knownRxTypes[self.rxType][2]
def projGLoc(self, u):
"""Grid Location projection (e.g. Ex Fy ...)"""
return u._GLoc(self.rxType[0]) + self.knownRxTypes[self.rxType][1]
def eval(self, src, mesh, f):
"""
Project fields to recievers to get data.
:param Source src: FDEM source
:param Mesh mesh: mesh used
:param Fields f: fields object
:rtype: numpy.ndarray
:return: fields projected to recievers
"""
# projGLoc = u._GLoc(self.knownRxTypes[self.rxType][0])
# projGLoc += self.knownRxTypes[self.rxType][1]
P = self.getP(mesh, self.projGLoc(f))
f_part_complex = f[src, self.projField]
# get the real or imag component
real_or_imag = self.projComp
f_part = getattr(f_part_complex, real_or_imag)
return P*f_part
def evalDeriv(self, src, mesh, f, v, adjoint=False):
"""
Derivative of projected fields with respect to the inversion model times a vector.
:param Source src: FDEM source
:param Mesh mesh: mesh used
:param Fields f: fields object
:param numpy.ndarray v: vector to multiply
:rtype: numpy.ndarray
:return: fields projected to recievers
"""
P = self.getP(mesh, self.projGLoc(f))
if not adjoint:
Pv_complex = P * v
real_or_imag = self.projComp
Pv = getattr(Pv_complex, real_or_imag)
elif adjoint:
Pv_real = P.T * v
real_or_imag = self.projComp
if real_or_imag == 'imag':
Pv = 1j*Pv_real
elif real_or_imag == 'real':
Pv = Pv_real.astype(complex)
else:
raise NotImplementedError('must be real or imag')
return Pv
####################################################
# Survey
####################################################
class Survey(BaseEMSurvey):
"""
Frequency domain electromagnetic survey
@@ -15,7 +132,7 @@ class Survey(BaseEMSurvey):
"""
srcPair = Src.BaseSrc
rxPair = Rx.BaseRx
rxPair = Rx
def __init__(self, srcList, **kwargs):
# Sort these by frequency
+3 -5
View File
@@ -1,5 +1,3 @@
from SurveyFDEM import Survey
import SrcFDEM as Src
import RxFDEM as Rx
from ProblemFDEM import Problem3D_e, Problem3D_b, Problem3D_j, Problem3D_h
from FieldsFDEM import Fields3D_e, Fields3D_b, Fields3D_j, Fields3D_h
from SurveyFDEM import Rx, Src, Survey
from FDEM import BaseFDEMProblem, Problem_e, Problem_b, Problem_j, Problem_h
from FieldsFDEM import *
-160
View File
@@ -1,160 +0,0 @@
import numpy as np
def getxBCyBC_CC(mesh, alpha, beta, gamma):
# def getxBCyBC(mesh, alpha, beta, gamma):
"""
This is a subfunction generating mixed-boundary condition:
.. math::
\nabla \cdot \vec{j} = -\nabla \cdot \vec{j}_s = q
\rho \vec{j} = -\nabla \phi \phi
\alpha \phi + \beta \frac{\partial \phi}{\partial r} = \gamma \ at \ r = \partial \Omega
xBC = f_1(\alpha, \beta, \gamma)
yBC = f(\alpha, \beta, \gamma)
Computes xBC and yBC for cell-centered discretizations
"""
if mesh.dim == 1: #1D
if (len(alpha) != 2 or len(beta) != 2 or len(gamma) != 2):
raise Exception("Lenght of list, alpha should be 2")
fCCxm,fCCxp = mesh.cellBoundaryInd
nBC = fCCxm.sum()+fCCxp.sum()
h_xm, h_xp = mesh.gridCC[fCCxm], mesh.gridCC[fCCxp]
alpha_xm, beta_xm, gamma_xm = alpha[0], beta[0], gamma[0]
alpha_xp, beta_xp, gamma_xp = alpha[1], beta[1], gamma[1]
# h_xm, h_xp = mesh.gridCC[fCCxm], mesh.gridCC[fCCxp]
h_xm, h_xp = mesh.hx[0], mesh.hx[-1]
a_xm = gamma_xm/(0.5*alpha_xm-beta_xm/h_xm)
b_xm = (0.5*alpha_xm+beta_xm/h_xm)/(0.5*alpha_xm-beta_xm/h_xm)
a_xp = gamma_xp/(0.5*alpha_xp-beta_xp/h_xp)
b_xp = (0.5*alpha_xp+beta_xp/h_xp)/(0.5*alpha_xp-beta_xp/h_xp)
xBC_xm = 0.5*a_xm
xBC_xp = 0.5*a_xp/b_xp
yBC_xm = 0.5*(1.-b_xm)
yBC_xp = 0.5*(1.-1./b_xp)
xBC = np.r_[xBC_xm, xBC_xp]
yBC = np.r_[yBC_xm, yBC_xp]
elif mesh.dim == 2: #2D
if (len(alpha) != 4 or len(beta) != 4 or len(gamma) != 4):
raise Exception("Lenght of list, alpha should be 4")
fxm,fxp,fym,fyp = mesh.faceBoundaryInd
nBC = fxm.sum()+fxp.sum()+fxm.sum()+fxp.sum()
alpha_xm, beta_xm, gamma_xm = alpha[0], beta[0], gamma[0]
alpha_xp, beta_xp, gamma_xp = alpha[1], beta[1], gamma[1]
alpha_ym, beta_ym, gamma_ym = alpha[2], beta[2], gamma[2]
alpha_yp, beta_yp, gamma_yp = alpha[3], beta[3], gamma[3]
# h_xm, h_xp = mesh.gridCC[fCCxm,0], mesh.gridCC[fCCxp,0]
# h_ym, h_yp = mesh.gridCC[fCCym,1], mesh.gridCC[fCCyp,1]
h_xm, h_xp = mesh.hx[0]*np.ones_like(alpha_xm), mesh.hx[-1]*np.ones_like(alpha_xp)
h_ym, h_yp = mesh.hy[0]*np.ones_like(alpha_ym), mesh.hy[-1]*np.ones_like(alpha_yp)
a_xm = gamma_xm/(0.5*alpha_xm-beta_xm/h_xm)
b_xm = (0.5*alpha_xm+beta_xm/h_xm)/(0.5*alpha_xm-beta_xm/h_xm)
a_xp = gamma_xp/(0.5*alpha_xp-beta_xp/h_xp)
b_xp = (0.5*alpha_xp+beta_xp/h_xp)/(0.5*alpha_xp-beta_xp/h_xp)
a_ym = gamma_ym/(0.5*alpha_ym-beta_ym/h_ym)
b_ym = (0.5*alpha_ym+beta_ym/h_ym)/(0.5*alpha_ym-beta_ym/h_ym)
a_yp = gamma_yp/(0.5*alpha_yp-beta_yp/h_yp)
b_yp = (0.5*alpha_yp+beta_yp/h_yp)/(0.5*alpha_yp-beta_yp/h_yp)
xBC_xm = 0.5*a_xm
xBC_xp = 0.5*a_xp/b_xp
yBC_xm = 0.5*(1.-b_xm)
yBC_xp = 0.5*(1.-1./b_xp)
xBC_ym = 0.5*a_ym
xBC_yp = 0.5*a_yp/b_yp
yBC_ym = 0.5*(1.-b_ym)
yBC_yp = 0.5*(1.-1./b_yp)
sortindsfx = np.argsort(np.r_[np.arange(mesh.nFx)[fxm], np.arange(mesh.nFx)[fxp]])
sortindsfy = np.argsort(np.r_[np.arange(mesh.nFy)[fym], np.arange(mesh.nFy)[fyp]])
xBC_x = np.r_[xBC_xm, xBC_xp][sortindsfx]
xBC_y = np.r_[xBC_ym, xBC_yp][sortindsfy]
yBC_x = np.r_[yBC_xm, yBC_xp][sortindsfx]
yBC_y = np.r_[yBC_ym, yBC_yp][sortindsfy]
xBC = np.r_[xBC_x, xBC_y]
yBC = np.r_[yBC_x, yBC_y]
elif mesh.dim == 3: #3D
if (len(alpha) != 6 or len(beta) != 6 or len(gamma) != 6):
raise Exception("Lenght of list, alpha should be 6")
# fCCxm,fCCxp,fCCym,fCCyp,fCCzm,fCCzp = mesh.cellBoundaryInd
fxm,fxp,fym,fyp,fzm,fzp = mesh.faceBoundaryInd
nBC = fxm.sum()+fxp.sum()+fxm.sum()+fxp.sum()
alpha_xm, beta_xm, gamma_xm = alpha[0], beta[0], gamma[0]
alpha_xp, beta_xp, gamma_xp = alpha[1], beta[1], gamma[1]
alpha_ym, beta_ym, gamma_ym = alpha[2], beta[2], gamma[2]
alpha_yp, beta_yp, gamma_yp = alpha[3], beta[3], gamma[3]
alpha_zm, beta_zm, gamma_zm = alpha[4], beta[4], gamma[4]
alpha_zp, beta_zp, gamma_zp = alpha[5], beta[5], gamma[5]
# h_xm, h_xp = mesh.gridCC[fCCxm,0], mesh.gridCC[fCCxp,0]
# h_ym, h_yp = mesh.gridCC[fCCym,1], mesh.gridCC[fCCyp,1]
# h_zm, h_zp = mesh.gridCC[fCCzm,2], mesh.gridCC[fCCzp,2]
h_xm, h_xp = mesh.hx[0]*np.ones_like(alpha_xm), mesh.hx[-1]*np.ones_like(alpha_xp)
h_ym, h_yp = mesh.hy[0]*np.ones_like(alpha_ym), mesh.hy[-1]*np.ones_like(alpha_yp)
h_zm, h_zp = mesh.hz[0]*np.ones_like(alpha_zm), mesh.hz[-1]*np.ones_like(alpha_zp)
a_xm = gamma_xm/(0.5*alpha_xm-beta_xm/h_xm)
b_xm = (0.5*alpha_xm+beta_xm/h_xm)/(0.5*alpha_xm-beta_xm/h_xm)
a_xp = gamma_xp/(0.5*alpha_xp-beta_xp/h_xp)
b_xp = (0.5*alpha_xp+beta_xp/h_xp)/(0.5*alpha_xp-beta_xp/h_xp)
a_ym = gamma_ym/(0.5*alpha_ym-beta_ym/h_ym)
b_ym = (0.5*alpha_ym+beta_ym/h_ym)/(0.5*alpha_ym-beta_ym/h_ym)
a_yp = gamma_yp/(0.5*alpha_yp-beta_yp/h_yp)
b_yp = (0.5*alpha_yp+beta_yp/h_yp)/(0.5*alpha_yp-beta_yp/h_yp)
a_zm = gamma_zm/(0.5*alpha_zm-beta_zm/h_zm)
b_zm = (0.5*alpha_zm+beta_zm/h_zm)/(0.5*alpha_zm-beta_zm/h_zm)
a_zp = gamma_zp/(0.5*alpha_zp-beta_zp/h_zp)
b_zp = (0.5*alpha_zp+beta_zp/h_zp)/(0.5*alpha_zp-beta_zp/h_zp)
xBC_xm = 0.5*a_xm
xBC_xp = 0.5*a_xp/b_xp
yBC_xm = 0.5*(1.-b_xm)
yBC_xp = 0.5*(1.-1./b_xp)
xBC_ym = 0.5*a_ym
xBC_yp = 0.5*a_yp/b_yp
yBC_ym = 0.5*(1.-b_ym)
yBC_yp = 0.5*(1.-1./b_yp)
xBC_zm = 0.5*a_zm
xBC_zp = 0.5*a_zp/b_zp
yBC_zm = 0.5*(1.-b_zm)
yBC_zp = 0.5*(1.-1./b_zp)
sortindsfx = np.argsort(np.r_[np.arange(mesh.nFx)[fxm], np.arange(mesh.nFx)[fxp]])
sortindsfy = np.argsort(np.r_[np.arange(mesh.nFy)[fym], np.arange(mesh.nFy)[fyp]])
sortindsfz = np.argsort(np.r_[np.arange(mesh.nFz)[fzm], np.arange(mesh.nFz)[fzp]])
xBC_x = np.r_[xBC_xm, xBC_xp][sortindsfx]
xBC_y = np.r_[xBC_ym, xBC_yp][sortindsfy]
xBC_z = np.r_[xBC_zm, xBC_zp][sortindsfz]
yBC_x = np.r_[yBC_xm, yBC_xp][sortindsfx]
yBC_y = np.r_[yBC_ym, yBC_yp][sortindsfy]
yBC_z = np.r_[yBC_zm, yBC_zp][sortindsfz]
xBC = np.r_[xBC_x, xBC_y, xBC_z]
yBC = np.r_[yBC_x, yBC_y, yBC_z]
return xBC, yBC
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import SimPEG
from SimPEG.Utils import Identity, Zero
import numpy as np
from scipy.constants import epsilon_0
class Fields(SimPEG.Problem.Fields):
knownFields = {}
dtype = float
def _phiDeriv(self, src, du_dm_v, v, adjoint=False):
if getattr(self, '_phiDeriv_u', None) is None or getattr(self, '_phiDeriv_m', None) is None:
raise NotImplementedError ('Getting phiDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
return self._phiDeriv_u(src, v, adjoint=adjoint), self._phiDeriv_m(src, v, adjoint=adjoint)
return np.array(self._phiDeriv_u(src, du_dm_v, adjoint) + self._phiDeriv_m(src, v, adjoint), dtype = float)
def _eDeriv(self, src, du_dm_v, v, adjoint=False):
if getattr(self, '_eDeriv_u', None) is None or getattr(self, '_eDeriv_m', None) is None:
raise NotImplementedError ('Getting eDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
return self._eDeriv_u(src, v, adjoint), self._eDeriv_m(src, v, adjoint)
return np.array(self._eDeriv_u(src, du_dm_v, adjoint) + self._eDeriv_m(src, v, adjoint), dtype = float)
def _jDeriv(self, src, du_dm_v, v, adjoint=False):
if getattr(self, '_jDeriv_u', None) is None or getattr(self, '_jDeriv_m', None) is None:
raise NotImplementedError ('Getting jDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
return self._jDeriv_u(src, v, adjoint), self._jDeriv_m(src, v, adjoint)
return np.array(self._jDeriv_u(src, du_dm_v, adjoint) + self._jDeriv_m(src, v, adjoint), dtype = float)
class Fields_CC(Fields):
knownFields = {'phiSolution':'CC'}
aliasFields = {
'phi': ['phiSolution','CC','_phi'],
'j' : ['phiSolution','F','_j'],
'e' : ['phiSolution','F','_e'],
'charge' : ['phiSolution','CC','_charge'],
}
# primary - secondary
# CC variables
def __init__(self, mesh, survey, **kwargs):
Fields.__init__(self, mesh, survey, **kwargs)
mesh.setCellGradBC("neumann")
cellGrad = mesh.cellGrad
def startup(self):
self.prob = self.survey.prob
def _GLoc(self, fieldType):
if fieldType == 'phi':
return 'CC'
elif fieldType == 'e' or fieldType == 'j':
return 'F'
else:
raise Exception('Field type must be phi, e, j')
def _phi(self, phiSolution, srcList):
return phiSolution
def _phiDeriv_u(self, src, v, adjoint = False):
return Identity()*v
def _phiDeriv_m(self, src, v, adjoint = False):
return Zero()
def _j(self, phiSolution, srcList):
"""
.. math::
\mathbf{j} = \mathbf{M}^{f \ -1}_{\rho} \mathbf{G} \phi
"""
return self.prob.MfRhoI*self.prob.Grad*phiSolution
def _e(self, phiSolution, srcList):
"""
In HJ formulation e is not well-defined!!
.. math::
\vec{e} = -\nabla \phi
"""
return -self.mesh.cellGrad*phiSolution
def _charge(self, phiSolution, srcList):
"""
.. math::
\int \nabla \codt \vec{e} = \int \frac{\rho_v }{\epsillon_0}
"""
return epsilon_0*self.prob.Vol*(self.mesh.faceDiv*self._e(phiSolution, srcList))
class Fields_N(Fields):
knownFields = {'phiSolution':'N'}
aliasFields = {
'phi': ['phiSolution','N','_phi'],
'j' : ['phiSolution','E','_j'],
'e' : ['phiSolution','E','_e'],
'charge' : ['phiSolution','N','_charge'],
}
# primary - secondary
# N variables
def __init__(self, mesh, survey, **kwargs):
Fields.__init__(self, mesh, survey, **kwargs)
def startup(self):
self.prob = self.survey.prob
def _GLoc(self, fieldType):
if fieldType == 'phi':
return 'N'
elif fieldType == 'e' or fieldType == 'j':
return 'E'
else:
raise Exception('Field type must be phi, e, j')
def _phi(self, phiSolution, srcList):
return phiSolution
def _phiDeriv_u(self, src, v, adjoint = False):
return Identity()*v
def _phiDeriv_m(self, src, v, adjoint = False):
return Zero()
def _j(self, phiSolution, srcList):
"""
In EB formulation j is not well-defined!!
.. math::
\mathbf{j} = - \mathbf{M}^{e}_{\sigma} \mathbf{G} \phi
"""
return self.prob.MeSigma * self._e(phiSolution, srcList)
def _e(self, phiSolution, srcList):
"""
In HJ formulation e is not well-defined!!
.. math::
\vec{e} = -\nabla \phi
"""
return -self.mesh.nodalGrad * phiSolution
def _charge(self, phiSolution, srcList):
"""
.. math::
\int \nabla \codt \vec{e} = \int \frac{\rho_v }{\epsillon_0}
"""
return - epsilon_0*(self.mesh.nodalGrad.T*self.mesh.getEdgeInnerProduct()*self._e(phiSolution, srcList))
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import SimPEG
from SimPEG.Utils import Identity, Zero
import numpy as np
class Fields_ky(SimPEG.Problem.TimeFields):
"""
Fancy Field Storage for a 2.5D code.
u[:,'phi', kyInd] = phi
print u[src0,'phi']
Only one field type is stored for
each problem, the rest are computed. The fields obejct acts like an array and is indexed by
.. code-block:: python
f = problem.fields(m)
e = f[srcList,'e']
j = f[srcList,'j']
If accessing all sources for a given field, use the :code:`:`
.. code-block:: python
f = problem.fields(m)
phi = f[:,'phi']
e = f[:,'e']
b = f[:,'b']
The array returned will be size (nE or nF, nSrcs :math:`\\times` nFrequencies)
"""
knownFields = {}
dtype = float
def _phiDeriv(self,kyInd, src, du_dm_v, v, adjoint=False):
if getattr(self, '_phiDeriv_u', None) is None or getattr(self, '_phiDeriv_m', None) is None:
raise NotImplementedError ('Getting phiDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
return self._phiDeriv_u(kyInd, src, v, adjoint=adjoint), self._phiDeriv_m(kyInd, src, v, adjoint=adjoint)
return np.array(self._phiDeriv_u(kyInd, src, du_dm_v, adjoint) + self._phiDeriv_m(kyInd, src, v, adjoint), dtype = float)
def _eDeriv(self,kyInd, src, du_dm_v, v, adjoint=False):
if getattr(self, '_eDeriv_u', None) is None or getattr(self, '_eDeriv_m', None) is None:
raise NotImplementedError ('Getting eDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
return self._eDeriv_u(kyInd, src, v, adjoint), self._eDeriv_m(kyInd, src, v, adjoint)
return np.array(self._eDeriv_u(kyInd, src, du_dm_v, adjoint) + self._eDeriv_m(kyInd, src, v, adjoint), dtype = float)
def _jDeriv(self,kyInd, src, du_dm_v, v, adjoint=False):
if getattr(self, '_jDeriv_u', None) is None or getattr(self, '_jDeriv_m', None) is None:
raise NotImplementedError ('Getting jDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
return self._jDeriv_u(kyInd, src, v, adjoint), self._jDeriv_m(kyInd, src, v, adjoint)
return np.array(self._jDeriv_u(kyInd, src, du_dm_v, adjoint) + self._jDeriv_m(kyInd, src, v, adjoint), dtype = float)
# def _eDeriv(self, tInd, src, dun_dm_v, v, adjoint=False):
# if adjoint is True:
# return self._eDeriv_u(tInd, src, v, adjoint), self._eDeriv_m(tInd, src, v, adjoint)
# return self._eDeriv_u(tInd, src, dun_dm_v) + self._eDeriv_m(tInd, src, v)
# def _bDeriv(self, tInd, src, dun_dm_v, v, adjoint=False):
# if adjoint is True:
# return self._bDeriv_u(tInd, src, v, adjoint), self._bDeriv_m(tInd, src, v, adjoint)
# return self._bDeriv_u(tInd, src, dun_dm_v) + self._bDeriv_m(tInd, src, v)
class Fields_ky_CC(Fields_ky):
knownFields = {'phiSolution':'CC'}
aliasFields = {
'phi': ['phiSolution','CC','_phi'],
'j' : ['phiSolution','F','_j'],
'e' : ['phiSolution','F','_e'],
}
# primary - secondary
# CC variables
def __init__(self, mesh, survey, **kwargs):
Fields_ky.__init__(self, mesh, survey, **kwargs)
def startup(self):
self.prob = self.survey.prob
def _GLoc(self, fieldType):
if fieldType == 'phi':
return 'CC'
elif fieldType == 'e' or fieldType == 'j':
return 'F'
else:
raise Exception('Field type must be phi, e, j')
def _phi(self, phiSolution, src, kyInd):
return phiSolution
def _phiDeriv_u(self, kyInd, src, v, adjoint = False):
return Identity()*v
def _phiDeriv_m(self, kyInd, src, v, adjoint = False):
return Zero()
def _j(self, phiSolution, srcList):
raise NotImplementedError
def _e(self, phiSolution, srcList):
raise NotImplementedError
class Fields_ky_N(Fields_ky):
knownFields = {'phiSolution':'N'}
aliasFields = {
'phi': ['phiSolution','N','_phi'],
'j' : ['phiSolution','E','_j'],
'e' : ['phiSolution','E','_e'],
}
# primary - secondary
# CC variables
def __init__(self, mesh, survey, **kwargs):
Fields_ky.__init__(self, mesh, survey, **kwargs)
def startup(self):
self.prob = self.survey.prob
def _GLoc(self, fieldType):
if fieldType == 'phi':
return 'N'
elif fieldType == 'e' or fieldType == 'j':
return 'E'
else:
raise Exception('Field type must be phi, e, j')
def _phi(self, phiSolution, src, kyInd):
return phiSolution
def _phiDeriv_u(self, kyInd, src, v, adjoint = False):
return Identity()*v
def _phiDeriv_m(self, kyInd, src, v, adjoint = False):
return Zero()
def _j(self, phiSolution, srcList):
raise NotImplementedError
def _e(self, phiSolution, srcList):
raise NotImplementedError
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from SimPEG import Problem, Utils
from SimPEG.EM.Base import BaseEMProblem
from SurveyDC import Survey
from FieldsDC import Fields, Fields_CC, Fields_N
from SimPEG.Utils import sdiag
import numpy as np
from SimPEG.Utils import Zero
from BoundaryUtils import getxBCyBC_CC
class BaseDCProblem(BaseEMProblem):
surveyPair = Survey
fieldsPair = Fields
Ainv = None
def fields(self, m):
self.curModel = m
if not self.Ainv == None:
self.Ainv.clean()
f = self.fieldsPair(self.mesh, self.survey)
A = self.getA()
self.Ainv = self.Solver(A, **self.solverOpts)
RHS = self.getRHS()
u = self.Ainv * RHS
Srcs = self.survey.srcList
f[Srcs, self._solutionType] = u
return f
def Jvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
Jv = self.dataPair(self.survey) #same size as the data
A = self.getA()
for src in self.survey.srcList:
u_src = f[src, self._solutionType] # solution vector
dA_dm_v = self.getADeriv(u_src, v)
dRHS_dm_v = self.getRHSDeriv(src, v)
du_dm_v = self.Ainv * ( - dA_dm_v + dRHS_dm_v )
for rx in src.rxList:
df_dmFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_dm_v = df_dmFun(src, du_dm_v, v, adjoint=False)
Jv[src, rx] = rx.evalDeriv(src, self.mesh, f, df_dm_v)
return Utils.mkvc(Jv)
def Jtvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
# Ensure v is a data object.
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
Jtv = np.zeros(m.size)
AT = self.getA()
for src in self.survey.srcList:
u_src = f[src, self._solutionType]
for rx in src.rxList:
PTv = rx.evalDeriv(src, self.mesh, f, v[src, rx], adjoint=True) # wrt f, need possibility wrt m
df_duTFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_duT, df_dmT = df_duTFun(src, None, PTv, adjoint=True)
ATinvdf_duT = self.Ainv * df_duT
dA_dmT = self.getADeriv(u_src, ATinvdf_duT, adjoint=True)
dRHS_dmT = self.getRHSDeriv(src, ATinvdf_duT, adjoint=True)
du_dmT = -dA_dmT + dRHS_dmT
Jtv += (df_dmT + du_dmT).astype(float)
return Utils.mkvc(Jtv)
def getSourceTerm(self):
"""
takes concept of source and turns it into a matrix
"""
"""
Evaluates the sources, and puts them in matrix form
:rtype: (numpy.ndarray, numpy.ndarray)
:return: q (nC or nN, nSrc)
"""
Srcs = self.survey.srcList
if self._formulation is 'EB':
n = self.mesh.nN
# return NotImplementedError
elif self._formulation is 'HJ':
n = self.mesh.nC
q = np.zeros((n, len(Srcs)))
for i, src in enumerate(Srcs):
q[:,i] = src.eval(self)
return q
class Problem3D_CC(BaseDCProblem):
_solutionType = 'phiSolution'
_formulation = 'HJ' # CC potentials means J is on faces
fieldsPair = Fields_CC
def __init__(self, mesh, **kwargs):
BaseDCProblem.__init__(self, mesh, **kwargs)
self.setBC()
def getA(self):
"""
Make the A matrix for the cell centered DC resistivity problem
A = D MfRhoI G
"""
D = self.Div
G = self.Grad
MfRhoI = self.MfRhoI
A = D * MfRhoI * G
# I think we should deprecate this for DC problem.
# if self._makeASymmetric is True:
# return V.T * A
return A
def getADeriv(self, u, v, adjoint= False):
D = self.Div
G = self.Grad
MfRhoIDeriv = self.MfRhoIDeriv
if adjoint:
return(MfRhoIDeriv( G * u ).T) * ( D.T * v)
return D * (MfRhoIDeriv( G * u ) * v)
def getRHS(self):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm()
return RHS
def getRHSDeriv(self, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, adjoint=adjoint)
# return qDeriv
return Zero()
def setBC(self):
if self.mesh.dim==3:
fxm,fxp,fym,fyp,fzm,fzp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
gBFzm = self.mesh.gridFz[fzm,:]
gBFzp = self.mesh.gridFz[fzp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
temp_zm, temp_zp = np.ones_like(gBFzm[:,2]), np.ones_like(gBFzp[:,2])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
alpha_zm, alpha_zp = temp_zm*0., temp_zp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
beta_zm, beta_zp = temp_zm, temp_zp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
gamma_zm, gamma_zp = temp_zm*0., temp_zp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp, alpha_zm, alpha_zp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp, beta_zm, beta_zp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp, gamma_zm, gamma_zp]
elif self.mesh.dim==2:
fxm,fxp,fym,fyp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp]
x_BC, y_BC = getxBCyBC_CC(self.mesh, alpha, beta, gamma)
V = self.Vol
self.Div = V * self.mesh.faceDiv
P_BC, B = self.mesh.getBCProjWF_simple()
M = B*self.mesh.aveCC2F
self.Grad = self.Div.T - P_BC*Utils.sdiag(y_BC)*M
class Problem3D_N(BaseDCProblem):
_solutionType = 'phiSolution'
_formulation = 'EB' # N potentials means B is on faces
fieldsPair = Fields_N
def __init__(self, mesh, **kwargs):
BaseDCProblem.__init__(self, mesh, **kwargs)
def getA(self):
"""
Make the A matrix for the cell centered DC resistivity problem
A = G.T MeSigma G
"""
MeSigma = self.MeSigma
Grad = self.mesh.nodalGrad
A = Grad.T * MeSigma * Grad
# Handling Null space of A
A[0,0] = A[0,0] + 1.
return A
def getADeriv(self, u, v, adjoint=False):
"""
Product of the derivative of our system matrix with respect to the model and a vector
"""
MeSigma = self.MeSigma
Grad = self.mesh.nodalGrad
if not adjoint:
return Grad.T*(self.MeSigmaDeriv(Grad*u)*v)
elif adjoint:
return self.MeSigmaDeriv(Grad*u).T * (Grad*v)
def getRHS(self):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm()
return RHS
def getRHSDeriv(self, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, adjoint=adjoint)
# return qDeriv
return Zero()
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from SimPEG import Problem, Utils
from SimPEG.EM.Base import BaseEMProblem
from SurveyDC import Survey, Survey_ky
from FieldsDC_2D import Fields_ky, Fields_ky_CC, Fields_ky_N
from SimPEG.Utils import sdiag
import numpy as np
from SimPEG.Utils import Zero
from BoundaryUtils import getxBCyBC_CC
class BaseDCProblem_2D(BaseEMProblem):
surveyPair = Survey_ky
fieldsPair = Fields_ky
nky = 15
kys = np.logspace(-4, 1, nky)
Ainv = [None for i in range(nky)]
nT = nky # Only for using TimeFields
def fields(self, m):
self.curModel = m
if not self.Ainv[0] == None:
for i in range(self.nky):
self.Ainv[i].clean()
f = self.fieldsPair(self.mesh, self.survey)
Srcs = self.survey.srcList
for iky in range(self.nky):
ky = self.kys[iky]
A = self.getA(ky)
self.Ainv[iky] = self.Solver(A, **self.solverOpts)
RHS = self.getRHS(ky)
u = self.Ainv[iky] * RHS
f[Srcs, self._solutionType, iky] = u
return f
def Jvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
Jv = self.dataPair(self.survey) #same size as the data
Jv0 = self.dataPair(self.survey)
# Assume y=0.
# This needs some thoughts to implement in general when src is dipole
dky = np.diff(self.kys)
dky = np.r_[dky[0], dky]
y = 0.
#TODO: this loop is pretty slow .. (Parellize)
for iky in range(self.nky):
ky = self.kys[iky]
A = self.getA(ky)
for src in self.survey.srcList:
u_src = f[src, self._solutionType, iky] # solution vector
dA_dm_v = self.getADeriv(ky, u_src, v)
dRHS_dm_v = self.getRHSDeriv(ky, src, v)
du_dm_v = self.Ainv[iky] * ( - dA_dm_v + dRHS_dm_v )
for rx in src.rxList:
df_dmFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_dm_v = df_dmFun(iky, src, du_dm_v, v, adjoint=False)
# Trapezoidal intergration
Jv1_temp = 1./np.pi*rx.evalDeriv(ky, src, self.mesh, f, df_dm_v)
if iky==0:
#First assigment
Jv[src, rx] = Jv1_temp*dky[iky]*np.cos(ky*y)
else:
Jv[src, rx] += Jv1_temp*dky[iky] /2.*np.cos(ky*y)
Jv[src, rx] += Jv0[src, rx]*dky[iky]/2.*np.cos(ky*y)
Jv0[src, rx] = Jv1_temp.copy()
return Utils.mkvc(Jv)
def Jtvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
# Ensure v is a data object.
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
Jtv = np.zeros(m.size, dtype=float)
# Assume y=0.
# This needs some thoughts to implement in general when src is dipole
dky = np.diff(self.kys)
dky = np.r_[dky[0], dky]
y = 0.
for src in self.survey.srcList:
for rx in src.rxList:
Jtv_temp1 = np.zeros(m.size, dtype=float)
Jtv_temp0 = np.zeros(m.size, dtype=float)
#TODO: this loop is pretty slow .. (Parellize)
for iky in range(self.nky):
u_src = f[src, self._solutionType, iky]
ky = self.kys[iky]
AT = self.getA(ky)
PTv = rx.evalDeriv(ky, src, self.mesh, f, v[src, rx], adjoint=True) # wrt f, need possibility wrt m
df_duTFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_duT, df_dmT = df_duTFun(iky, src, None, PTv, adjoint=True)
ATinvdf_duT = self.Ainv[iky] * df_duT
dA_dmT = self.getADeriv(ky, u_src, ATinvdf_duT, adjoint=True)
dRHS_dmT = self.getRHSDeriv(ky, src, ATinvdf_duT, adjoint=True)
du_dmT = -dA_dmT + dRHS_dmT
Jtv_temp1 = 1./np.pi*(df_dmT + du_dmT).astype(float)
# Trapezoidal intergration
if iky==0:
#First assigment
Jtv += Jtv_temp1*dky[iky]*np.cos(ky*y)
else:
Jtv += Jtv_temp1*dky[iky]/2.*np.cos(ky*y)
Jtv += Jtv_temp0*dky[iky]/2.*np.cos(ky*y)
Jtv_temp0 = Jtv_temp1.copy()
return Utils.mkvc(Jtv)
def getSourceTerm(self, ky):
"""
takes concept of source and turns it into a matrix
"""
"""
Evaluates the sources, and puts them in matrix form
:rtype: (numpy.ndarray, numpy.ndarray)
:return: q (nC or nN, nSrc)
"""
Srcs = self.survey.srcList
if self._formulation is 'EB':
n = self.mesh.nN
# return NotImplementedError
elif self._formulation is 'HJ':
n = self.mesh.nC
q = np.zeros((n, len(Srcs)))
for i, src in enumerate(Srcs):
q[:,i] = src.eval(self)
return q
class Problem2D_CC(BaseDCProblem_2D):
_solutionType = 'phiSolution'
_formulation = 'HJ' # CC potentials means J is on faces
fieldsPair = Fields_ky_CC
def __init__(self, mesh, **kwargs):
BaseDCProblem_2D.__init__(self, mesh, **kwargs)
self.setBC()
def getA(self, ky):
"""
Make the A matrix for the cell centered DC resistivity problem
A = D MfRhoI G
"""
D = self.Div
G = self.Grad
vol = self.mesh.vol
MfRhoI = self.MfRhoI
# Get resistivity rho
rho = self.curModel.rho
A = D * MfRhoI * G + Utils.sdiag(ky**2*vol/rho)
return A
def getADeriv(self, ky, u, v, adjoint= False):
D = self.Div
G = self.Grad
vol = self.mesh.vol
MfRhoIDeriv = self.MfRhoIDeriv
rho = self.curModel.rho
if adjoint:
return(MfRhoIDeriv( G * u ).T) * ( D.T * v) + ky**2*Utils.sdiag(u.flatten()*vol*(-1./rho**2))*v
return D * ((MfRhoIDeriv( G * u )) * v) + ky**2*Utils.sdiag(u.flatten()*vol*(-1./rho**2))*v
def getRHS(self, ky):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm(ky)
return RHS
def getRHSDeriv(self, ky, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, ky, adjoint=adjoint)
# return qDeriv
return Zero()
def setBC(self):
if self.mesh.dim==3:
fxm,fxp,fym,fyp,fzm,fzp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
gBFzm = self.mesh.gridFz[fzm,:]
gBFzp = self.mesh.gridFz[fzp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
temp_zm, temp_zp = np.ones_like(gBFzm[:,2]), np.ones_like(gBFzp[:,2])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
alpha_zm, alpha_zp = temp_zm*0., temp_zp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
beta_zm, beta_zp = temp_zm, temp_zp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
gamma_zm, gamma_zp = temp_zm*0., temp_zp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp, alpha_zm, alpha_zp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp, beta_zm, beta_zp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp, gamma_zm, gamma_zp]
elif self.mesh.dim==2:
fxm,fxp,fym,fyp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp]
x_BC, y_BC = getxBCyBC_CC(self.mesh, alpha, beta, gamma)
V = self.Vol
self.Div = V * self.mesh.faceDiv
P_BC, B = self.mesh.getBCProjWF_simple()
M = B*self.mesh.aveCC2F
self.Grad = self.Div.T - P_BC*Utils.sdiag(y_BC)*M
class Problem2D_N(BaseDCProblem_2D):
_solutionType = 'phiSolution'
_formulation = 'EB' # CC potentials means J is on faces
fieldsPair = Fields_ky_N
def __init__(self, mesh, **kwargs):
BaseDCProblem_2D.__init__(self, mesh, **kwargs)
# self.setBC()
@property
def MnSigma(self):
"""
Node inner product matrix for \\(\\sigma\\). Used in the E-B formulation
"""
# TODO: only works isotropic sigma
sigma = self.curModel.sigma
vol = self.mesh.vol
MnSigma = Utils.sdiag(self.mesh.aveN2CC.T*(Utils.sdiag(vol)*sigma))
return MnSigma
def MnSigmaDeriv(self, u):
"""
Derivative of MnSigma with respect to the model
"""
sigma = self.curModel.sigma
sigmaderiv = self.curModel.sigmaDeriv
vol = self.mesh.vol
return Utils.sdiag(u)*self.mesh.aveN2CC.T*Utils.sdiag(vol) * self.curModel.sigmaDeriv
def getA(self, ky):
"""
Make the A matrix for the cell centered DC resistivity problem
A = D MfRhoI G
"""
MeSigma = self.MeSigma
MnSigma = self.MnSigma
Grad = self.mesh.nodalGrad
# Get conductivity sigma
sigma = self.curModel.sigma
A = Grad.T * MeSigma * Grad + ky**2*MnSigma
# Handling Null space of A
A[0,0] = A[0,0] + 1.
return A
def getADeriv(self, ky, u, v, adjoint= False):
MeSigma = self.MeSigma
Grad = self.mesh.nodalGrad
sigma = self.curModel.sigma
vol = self.mesh.vol
if adjoint:
return self.MeSigmaDeriv(Grad*u).T * (Grad*v) + ky**2*self.MnSigmaDeriv(u).T*v
return Grad.T*(self.MeSigmaDeriv(Grad*u)*v) + ky**2*self.MnSigmaDeriv(u)*v
def getRHS(self, ky):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm(ky)
return RHS
def getRHSDeriv(self, ky, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, ky, adjoint=adjoint)
# return qDeriv
return Zero()
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import SimPEG
import numpy as np
from SimPEG.Utils import Zero, closestPoints
class BaseRx(SimPEG.Survey.BaseRx):
locs = None
rxType = None
knownRxTypes = {
'phi':['phi',None],
'ex':['e','x'],
'ey':['e','y'],
'ez':['e','z'],
'jx':['j','x'],
'jy':['j','y'],
'jz':['j','z'],
}
def __init__(self, locs, rxType, **kwargs):
SimPEG.Survey.BaseRx.__init__(self, locs, rxType, **kwargs)
@property
def projField(self):
"""Field Type projection (e.g. e b ...)"""
return self.knownRxTypes[self.rxType][0]
def projGLoc(self, f):
"""Grid Location projection (e.g. Ex Fy ...)"""
comp = self.knownRxTypes[self.rxType][1]
if comp is not None:
return f._GLoc(self.rxType) + comp
return f._GLoc(self.rxType)
def eval(self, src, mesh, f):
P = self.getP(mesh, self.projGLoc(f))
return P*f[src, self.projField]
def evalDeriv(self, src, mesh, f, v, adjoint=False):
P = self.getP(mesh, self.projGLoc(f))
if not adjoint:
return P*v
elif adjoint:
return P.T*v
# DC.Rx.Dipole(locs)
class Dipole(BaseRx):
def __init__(self, locsM, locsN, rxType = 'phi', **kwargs):
assert locsM.shape == locsN.shape, 'locsM and locsN need to be the same size'
locs = [locsM, locsN]
# We may not need this ...
BaseRx.__init__(self, locs, rxType)
@property
def nD(self):
"""Number of data in the receiver."""
return self.locs[0].shape[0]
# Not sure why ...
# return int(self.locs[0].size / 2)
def getP(self, mesh, Gloc):
if mesh in self._Ps:
return self._Ps[mesh]
P0 = mesh.getInterpolationMat(self.locs[0], Gloc)
P1 = mesh.getInterpolationMat(self.locs[1], Gloc)
P = P0 - P1
if self.storeProjections:
self._Ps[mesh] = P
return P
class Dipole_ky(BaseRx):
def __init__(self, locsM, locsN, rxType = 'phi', **kwargs):
assert locsM.shape == locsN.shape, 'locsM and locsN need to be the same size'
locs = [locsM, locsN]
# We may not need this ...
BaseRx.__init__(self, locs, rxType)
@property
def nD(self):
"""Number of data in the receiver."""
return self.locs[0].shape[0]
# Not sure why ...
# return int(self.locs[0].size / 2)
def getP(self, mesh, Gloc):
if mesh in self._Ps:
return self._Ps[mesh]
P0 = mesh.getInterpolationMat(self.locs[0], Gloc)
P1 = mesh.getInterpolationMat(self.locs[1], Gloc)
P = P0 - P1
if self.storeProjections:
self._Ps[mesh] = P
return P
def eval(self, kys, src, mesh, f):
P = self.getP(mesh, self.projGLoc(f))
Pf = P*f[src, self.projField,:]
return self.IntTrapezoidal(kys, Pf, y=0.)
def evalDeriv(self, ky, src, mesh, f, v, adjoint=False):
P = self.getP(mesh, self.projGLoc(f))
if not adjoint:
return P*v
elif adjoint:
return P.T*v
def IntTrapezoidal(self, kys, Pf, y=0.):
phi = np.zeros(Pf.shape[0])
nky = kys.size
dky = np.diff(kys)
dky = np.r_[dky[0], dky]
phi0 = 1./np.pi*Pf[:,0]
for iky in range(nky):
phi1 = 1./np.pi*Pf[:,iky]
phi += phi1*dky[iky]/2.*np.cos(kys[iky]*y)
phi += phi0*dky[iky]/2.*np.cos(kys[iky]*y)
phi0 = phi1.copy()
return phi
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import SimPEG
# from SimPEG.EM.Base import BaseEMSurvey
from SimPEG.Utils import Zero, closestPoints, mkvc
import numpy as np
class BaseSrc(SimPEG.Survey.BaseSrc):
current = 1.0
loc = None
def __init__(self, rxList, **kwargs):
SimPEG.Survey.BaseSrc.__init__(self, rxList, **kwargs)
def eval(self, prob):
raise NotImplementedError
def evalDeriv(self, prob):
return Zero()
class Dipole(BaseSrc):
def __init__(self, rxList, locA, locB, **kwargs):
assert locA.shape == locB.shape, 'Shape of locA and locB should be the same'
self.loc = [locA, locB]
BaseSrc.__init__(self, rxList, **kwargs)
def eval(self, prob):
if prob._formulation == 'HJ':
inds = closestPoints(prob.mesh, self.loc, gridLoc='CC')
q = np.zeros(prob.mesh.nC)
q[inds] = self.current * np.r_[1., -1.]
elif prob._formulation == 'EB':
qa = prob.mesh.getInterpolationMat(self.loc[0], locType='N').todense()
qb = -prob.mesh.getInterpolationMat(self.loc[1], locType='N').todense()
q = self.current * mkvc(qa+qb)
return q
class Pole(BaseSrc):
def __init__(self, rxList, loc, **kwargs):
BaseSrc.__init__(self, rxList, loc=loc, **kwargs)
def eval(self, prob):
if prob._formulation == 'HJ':
inds = closestPoints(prob.mesh, self.loc)
q = np.zeros(prob.mesh.nC)
q[inds] = self.current * np.r_[1.]
elif prob._formulation == 'EB':
q = prob.mesh.getInterpolationMat(self.loc, locType='N').todense()
q = self.current * mkvc(q)
return q
# class Dipole_ky(BaseSrc):
# def __init__(self, rxList, locA, locB, **kwargs):
# assert locA.shape == locB.shape, 'Shape of locA and locB should be the same'
# self.loc = [locA[[0,2]], locB[[0,2]]]
# BaseSrc.__init__(self, rxList, **kwargs)
# def eval(self, prob):
# if prob._formulation == 'HJ':
# inds = closestPoints(prob.mesh, self.loc, gridLoc='CC')
# q = np.zeros(prob.mesh.nC)
# q[inds] = self.current * np.r_[1., -1.]
# elif prob._formulation == 'EB':
# qa = prob.mesh.getInterpolationMat(self.loc[0], locType='N').todense()
# qb = -prob.mesh.getInterpolationMat(self.loc[1], locType='N').todense()
# q = self.current * mkvc(qa+qb)
# return q
# class Pole_ky(BaseSrc):
# def __init__(self, rxList, loc, **kwargs):
# BaseSrc.__init__(self, rxList, loc=loc, **kwargs)
# def eval(self, prob):
# if prob._formulation == 'HJ':
# inds = closestPoints(prob.mesh, self.loc[[0,2]])
# q = np.zeros(prob.mesh.nC)
# q[inds] = self.current * np.r_[1.]
# elif prob._formulation == 'EB':
# q = prob.mesh.getInterpolationMat(self.loc[[0,2]], locType='N').todense()
# q = self.current * mkvc(q)
# return q
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import SimPEG
from SimPEG.EM.Base import BaseEMSurvey
from SimPEG import sp, Survey
from SimPEG.Utils import Zero, Identity
from RxDC import BaseRx
from SrcDC import BaseSrc
class Survey(BaseEMSurvey):
rxPair = BaseRx
srcPair = BaseSrc
def __init__(self, srcList, **kwargs):
self.srcList = srcList
BaseEMSurvey.__init__(self, srcList, **kwargs)
class Survey_ky(BaseEMSurvey):
rxPair = BaseRx
srcPair = BaseSrc
def __init__(self, srcList, **kwargs):
self.srcList = srcList
BaseEMSurvey.__init__(self, srcList, **kwargs)
def eval(self, f):
"""
Project fields to receiver locations
:param Fields u: fields object
:rtype: numpy.ndarray
:return: data
"""
data = SimPEG.Survey.Data(self)
kys = self.prob.kys
for src in self.srcList:
for rx in src.rxList:
data[src, rx] = rx.eval(kys, src, self.mesh, f)
return data
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import numpy as np
def WennerSrcList(nElecs, aSpacing, in2D=False, plotIt=False):
import SimPEG.EM.Static.DC as DC
elocs = np.arange(0,aSpacing*nElecs,aSpacing)
elocs -= (nElecs*aSpacing - aSpacing)/2
space = 1
WENNER = np.zeros((0,),dtype=int)
for ii in range(nElecs):
for jj in range(nElecs):
test = np.r_[jj,jj+space,jj+space*2,jj+space*3]
if np.any(test >= nElecs):
break
WENNER = np.r_[WENNER, test]
space += 1
WENNER = WENNER.reshape((-1,4))
if plotIt:
for i, s in enumerate('rbkg'):
plt.plot(elocs[WENNER[:,i]],s+'.')
plt.show()
# Create sources and receivers
i = 0
if in2D:
getLoc = lambda ii, abmn: np.r_[elocs[WENNER[ii,abmn]],0]
else:
getLoc = lambda ii, abmn: np.r_[elocs[WENNER[ii,abmn]],0, 0]
srcList = []
for i in range(WENNER.shape[0]):
rx = DC.Rx.Dipole(getLoc(i,1).reshape([1,-1]),getLoc(i,2).reshape([1,-1]))
src = DC.Src.Dipole([rx], getLoc(i,0),getLoc(i,3))
srcList += [src]
return srcList
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from ProblemDC import Problem3D_CC, Problem3D_N
from ProblemDC_2D import Problem2D_CC, Problem2D_N
from SurveyDC import Survey, Survey_ky
import SrcDC as Src #Pole
import RxDC as Rx
from FieldsDC import Fields_CC
from BoundaryUtils import getxBCyBC_CC
import Utils
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from SimPEG import Problem, Utils, Maps, Mesh
from SimPEG.EM.Base import BaseEMProblem
from SimPEG.EM.Static.DC.FieldsDC import Fields, Fields_CC, Fields_N
from SimPEG.Utils import sdiag
import numpy as np
from SimPEG.Utils import Zero
from SimPEG.EM.Static.DC import getxBCyBC_CC
from SurveyIP import Survey
class IPPropMap(Maps.PropMap):
"""
Property Map for IP Problems. The electrical chargeability,
(\\(\\eta\\)) is the default inversion property
"""
eta = Maps.Property("Electrical Chargeability", defaultInvProp = True)
class BaseIPProblem(BaseEMProblem):
surveyPair = Survey
fieldsPair = Fields
PropMap = IPPropMap
Ainv = None
sigma = None
rho = None
f = None
Ainv = None
def fields(self, m):
self.curModel = m
if self.f is None:
self.f = self.fieldsPair(self.mesh, self.survey)
if self.Ainv == None:
A = self.getA()
self.Ainv = self.Solver(A, **self.solverOpts)
RHS = self.getRHS()
u = self.Ainv * RHS
Srcs = self.survey.srcList
self.f[Srcs, self._solutionType] = u
return self.f
def Jvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
Jv = self.dataPair(self.survey) #same size as the data
A = self.getA()
for src in self.survey.srcList:
u_src = f[src, self._solutionType] # solution vector
dA_dm_v = self.getADeriv(u_src, v)
dRHS_dm_v = self.getRHSDeriv(src, v)
du_dm_v = self.Ainv * ( - dA_dm_v + dRHS_dm_v )
for rx in src.rxList:
df_dmFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_dm_v = df_dmFun(src, du_dm_v, v, adjoint=False)
Jv[src, rx] = rx.evalDeriv(src, self.mesh, f, df_dm_v)
# Conductivity (d u / d log sigma)
if self._formulation is 'EB':
return -Utils.mkvc(Jv)
# Conductivity (d u / d log rho)
if self._formulation is 'HJ':
return Utils.mkvc(Jv)
def Jtvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
# Ensure v is a data object.
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
Jtv = np.zeros(m.size)
AT = self.getA()
for src in self.survey.srcList:
u_src = f[src, self._solutionType]
for rx in src.rxList:
PTv = rx.evalDeriv(src, self.mesh, f, v[src, rx], adjoint=True) # wrt f, need possibility wrt m
df_duTFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_duT, df_dmT = df_duTFun(src, None, PTv, adjoint=True)
ATinvdf_duT = self.Ainv * df_duT
dA_dmT = self.getADeriv(u_src, ATinvdf_duT, adjoint=True)
dRHS_dmT = self.getRHSDeriv(src, ATinvdf_duT, adjoint=True)
du_dmT = -dA_dmT + dRHS_dmT
Jtv += (df_dmT + du_dmT).astype(float)
# Conductivity ((d u / d log sigma).T)
if self._formulation is 'EB':
return -Utils.mkvc(Jtv)
# Conductivity ((d u / d log rho).T)
if self._formulation is 'HJ':
return Utils.mkvc(Jtv)
def getSourceTerm(self):
"""
takes concept of source and turns it into a matrix
"""
"""
Evaluates the sources, and puts them in matrix form
:rtype: (numpy.ndarray, numpy.ndarray)
:return: q (nC or nN, nSrc)
"""
Srcs = self.survey.srcList
if self._formulation is 'EB':
n = self.mesh.nN
# return NotImplementedError
elif self._formulation is 'HJ':
n = self.mesh.nC
q = np.zeros((n, len(Srcs)))
for i, src in enumerate(Srcs):
q[:,i] = src.eval(self)
return q
@property
def deleteTheseOnModelUpdate(self):
toDelete = []
return toDelete
# assume log rho or log cond
@property
def MeSigma(self):
"""
Edge inner product matrix for \\(\\sigma\\). Used in the E-B formulation
"""
if getattr(self, '_MeSigma', None) is None:
self._MeSigma = self.mesh.getEdgeInnerProduct(self.sigma)
return self._MeSigma
@property
def MfRhoI(self):
"""
Inverse of :code:`MfRho`
"""
if getattr(self, '_MfRhoI', None) is None:
self._MfRhoI = self.mesh.getFaceInnerProduct(self.rho, invMat=True)
return self._MfRhoI
def MfRhoIDeriv(self,u):
"""
Derivative of :code:`MfRhoI` with respect to the model.
"""
dMfRhoI_dI = -self.MfRhoI**2
dMf_drho = self.mesh.getFaceInnerProductDeriv(self.rho)(u)
drho_dlogrho = Utils.sdiag(self.rho)*self.curModel.etaDeriv
return dMfRhoI_dI * ( dMf_drho * ( drho_dlogrho))
# TODO: This should take a vector
def MeSigmaDeriv(self, u):
"""
Derivative of MeSigma with respect to the model
"""
dsigma_dlogsigma = Utils.sdiag(self.sigma)*self.curModel.etaDeriv
return self.mesh.getEdgeInnerProductDeriv(self.sigma)(u) * dsigma_dlogsigma
class Problem3D_CC(BaseIPProblem):
_solutionType = 'phiSolution'
_formulation = 'HJ' # CC potentials means J is on faces
fieldsPair = Fields_CC
def __init__(self, mesh, **kwargs):
BaseIPProblem.__init__(self, mesh, **kwargs)
self.setBC()
def getA(self):
"""
Make the A matrix for the cell centered DC resistivity problem
A = D MfRhoI G
"""
D = self.Div
G = self.Grad
MfRhoI = self.MfRhoI
A = D * MfRhoI * G
# I think we should deprecate this for DC problem.
# if self._makeASymmetric is True:
# return V.T * A
return A
def getADeriv(self, u, v, adjoint= False):
D = self.Div
G = self.Grad
MfRhoIDeriv = self.MfRhoIDeriv
if adjoint:
# if self._makeASymmetric is True:
# v = V * v
return(MfRhoIDeriv( G * u ).T) * ( D.T * v)
# I think we should deprecate this for DC problem.
# if self._makeASymmetric is True:
# return V.T * ( D * ( MfRhoIDeriv( D.T * ( V * u ) ) * v ) )
return D * (MfRhoIDeriv( G * u ) * v)
def getRHS(self):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm()
# I think we should deprecate this for DC problem.
# if self._makeASymmetric is True:
# return self.Vol.T * RHS
return RHS
def getRHSDeriv(self, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, adjoint=adjoint)
# return qDeriv
return Zero()
def setBC(self):
if self.mesh.dim==3:
fxm,fxp,fym,fyp,fzm,fzp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
gBFzm = self.mesh.gridFz[fzm,:]
gBFzp = self.mesh.gridFz[fzp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
temp_zm, temp_zp = np.ones_like(gBFzm[:,2]), np.ones_like(gBFzp[:,2])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
alpha_zm, alpha_zp = temp_zm*0., temp_zp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
beta_zm, beta_zp = temp_zm, temp_zp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
gamma_zm, gamma_zp = temp_zm*0., temp_zp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp, alpha_zm, alpha_zp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp, beta_zm, beta_zp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp, gamma_zm, gamma_zp]
elif self.mesh.dim==2:
fxm,fxp,fym,fyp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp]
x_BC, y_BC = getxBCyBC_CC(self.mesh, alpha, beta, gamma)
V = self.Vol
self.Div = V * self.mesh.faceDiv
P_BC, B = self.mesh.getBCProjWF_simple()
M = B*self.mesh.aveCC2F
self.Grad = self.Div.T - P_BC*Utils.sdiag(y_BC)*M
class Problem3D_N(BaseIPProblem):
_solutionType = 'phiSolution'
_formulation = 'EB' # N potentials means B is on faces
fieldsPair = Fields_N
def __init__(self, mesh, **kwargs):
BaseIPProblem.__init__(self, mesh, **kwargs)
def getA(self):
"""
Make the A matrix for the cell centered DC resistivity problem
A = G.T MeSigma G
"""
MeSigma = self.MeSigma
Grad = self.mesh.nodalGrad
A = Grad.T * MeSigma * Grad
# Handling Null space of A
A[0,0] = A[0,0] + 1.
return A
def getADeriv(self, u, v, adjoint=False):
"""
Product of the derivative of our system matrix with respect to the model and a vector
"""
MeSigma = self.MeSigma
Grad = self.mesh.nodalGrad
if not adjoint:
return Grad.T*(self.MeSigmaDeriv(Grad*u)*v)
elif adjoint:
return self.MeSigmaDeriv(Grad*u).T * (Grad*v)
def getRHS(self):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm()
return RHS
def getRHSDeriv(self, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, adjoint=adjoint)
# return qDeriv
return Zero()
if __name__ == '__main__':
cs = 12.5
hx = [(cs,7, -1.3),(cs,21),(cs,7, 1.3)]
hy = [(cs,7, -1.3),(cs,21),(cs,7, 1.3)]
hz = [(cs,7, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy, hz],x0="CCN")
sigma = np.ones(mesh.nC)
prob = BaseIPProblem(mesh, sigma=sigma)
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import SimPEG
from SimPEG.EM.Base import BaseEMSurvey
from SimPEG import sp, Survey
from SimPEG.Utils import Zero, Identity
from SimPEG.EM.Static.DC.SrcDC import BaseSrc
from SimPEG.EM.Static.DC.RxDC import BaseRx
class Survey(BaseEMSurvey):
rxPair = BaseRx
srcPair = BaseSrc
def __init__(self, srcList, **kwargs):
self.srcList = srcList
BaseEMSurvey.__init__(self, srcList, **kwargs)
def dpred(self, m, f=None):
"""
Predicted data.
.. math::
d_\\text{pred} = Pf(m)
"""
return self.prob.Jvec(m, m, f=f)
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from ProblemIP import Problem3D_CC, Problem3D_N
from SurveyIP import Survey
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from SimPEG import Problem, Utils, Maps, Mesh
from SimPEG.EM.Base import BaseEMProblem
from SimPEG.EM.Static.DC.FieldsDC import Fields, Fields_CC, Fields_N
from SimPEG.Utils import sdiag
import numpy as np
from SimPEG.Utils import Zero
from SimPEG.EM.Static.DC import getxBCyBC_CC
from SurveySIP import Survey, Data
class ColeColePropMap(Maps.PropMap):
"""
Property Map for EM Problems. The electrical conductivity (\\(\\sigma\\)) is the default inversion property, and the default value of the magnetic permeability is that of free space (\\(\\mu = 4\\pi\\times 10^{-7} \\) H/m)
"""
eta = Maps.Property("Electrical Conductivity", defaultInvProp=True)
tau = Maps.Property("Electrical Conductivity", defaultVal=0.1, propertyLink=('taui', Maps.ReciprocalMap))
taui = Maps.Property("Electrical Conductivity", defaultVal=1., propertyLink=('tau', Maps.ReciprocalMap))
c = Maps.Property("Electrical Conductivity", defaultVal=1.)
class BaseSIPProblem(BaseEMProblem):
surveyPair = Survey
fieldsPair = Fields
dataPair = Data
PropMap = ColeColePropMap
Ainv = None
sigma = None
rho = None
f = None
Ainv = None
def DebyeTime(self, t):
peta = self.curModel.eta*np.exp(-self.curModel.taui*t)
return peta
def EtaDeriv(self, t, v, adjoint=False):
v = np.array(v, dtype=float)
if adjoint:
return self.curModel.etaDeriv.T * (np.exp(-self.curModel.taui*t)*v)
else:
return np.exp(-self.curModel.taui*t) * (self.curModel.etaDeriv*v)
def TauiDeriv(self, t, v, adjoint=False):
v = np.array(v, dtype=float)
if adjoint:
return -self.curModel.tauiDeriv.T * (self.curModel.eta*t*np.exp(-self.curModel.taui*t)*v)
else:
return -self.curModel.eta*t*np.exp(-self.curModel.taui*t) * (self.curModel.tauiDeriv*v)
def fields(self, m):
self.curModel = m
if self.f is None:
self.f = self.fieldsPair(self.mesh, self.survey)
if self.Ainv == None:
A = self.getA()
self.Ainv = self.Solver(A, **self.solverOpts)
RHS = self.getRHS()
u = self.Ainv * RHS
Srcs = self.survey.srcList
self.f[Srcs, self._solutionType] = u
return self.f
def forward(self, m, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
Jv = self.dataPair(self.survey) #same size as the data
# A = self.getA()
JvAll = []
for tind in range(len(self.survey.times)):
#Pseudo-chareability
t = self.survey.times[tind]
v = self.DebyeTime(t)
for src in self.survey.srcList:
u_src = f[src, self._solutionType] # solution vector
dA_dm_v = self.getADeriv(u_src, v)
dRHS_dm_v = self.getRHSDeriv(src, v)
du_dm_v = self.Ainv * ( - dA_dm_v + dRHS_dm_v )
for rx in src.rxList:
timeindex = rx.getTimeP(self.survey.times)
if timeindex[tind]:
df_dmFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_dm_v = df_dmFun(src, du_dm_v, v, adjoint=False)
Jv[src, rx, t] = rx.evalDeriv(src, self.mesh, f, df_dm_v)
# Conductivity (d u / d log sigma)
if self._formulation is 'EB':
return -Utils.mkvc(Jv)
# Resistivity (d u / d log rho)
if self._formulation is 'HJ':
return Utils.mkvc(Jv)
def Jvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
Jv = self.dataPair(self.survey) #same size as the data
# A = self.getA()
JvAll = []
#Assume only eta and tau (eta first then tau)
# v = [2*Mx1]
v = v.reshape((int(v.size/2), 2), order='F')
for tind in range(len(self.survey.times)):
t = self.survey.times[tind]
v0 = self.EtaDeriv(t, v[:,0])
v1 = self.TauiDeriv(t, v[:,1])
for src in self.survey.srcList:
u_src = f[src, self._solutionType] # solution vector
dA_dm_v0 = self.getADeriv(u_src, v0)
dRHS_dm_v0 = self.getRHSDeriv(src, v0)
du_dm_v0 = self.Ainv * ( - dA_dm_v0 + dRHS_dm_v0 )
dA_dm_v1 = self.getADeriv(u_src, v1)
dRHS_dm_v1 = self.getRHSDeriv(src, v1)
du_dm_v1 = self.Ainv * ( - dA_dm_v1 + dRHS_dm_v1 )
for rx in src.rxList:
timeindex = rx.getTimeP(self.survey.times)
if timeindex[tind]:
df_dmFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_dm_v0 = df_dmFun(src, du_dm_v0, v0, adjoint=False)
df_dm_v1 = df_dmFun(src, du_dm_v1, v1, adjoint=False)
Jv[src, rx, t] = rx.evalDeriv(src, self.mesh, f, df_dm_v0)
Jv[src, rx, t] += rx.evalDeriv(src, self.mesh, f, df_dm_v1)
# Conductivity (d u / d log sigma)
if self._formulation is 'EB':
return -Jv.tovec()
# Resistivity (d u / d log rho)
if self._formulation is 'HJ':
return Jv.tovec()
def Jtvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
self.curModel = m
# Ensure v is a data object.
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
Jtv= np.zeros(m.size)
for tind in range(len(self.survey.times)):
t = self.survey.times[tind]
for src in self.survey.srcList:
u_src = f[src, self._solutionType]
for rx in src.rxList:
timeindex = rx.getTimeP(self.survey.times)
if timeindex[tind]:
PTv = rx.evalDeriv(src, self.mesh, f, v[src, rx, t], adjoint=True) # wrt f, need possibility wrt m
df_duTFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_duT, df_dmT = df_duTFun(src, None, PTv, adjoint=True)
ATinvdf_duT = self.Ainv * df_duT
dA_dmT = self.getADeriv(u_src, ATinvdf_duT, adjoint=True)
dRHS_dmT = self.getRHSDeriv(src, ATinvdf_duT, adjoint=True)
du_dmT = -dA_dmT + dRHS_dmT
Jtv += np.r_[self.EtaDeriv(self.survey.times[tind], du_dmT, adjoint=True), self.TauiDeriv(self.survey.times[tind], du_dmT, adjoint=True)]
# Conductivity ((d u / d log sigma).T)
if self._formulation is 'EB':
return -Jtv
# Conductivity ((d u / d log rho).T)
if self._formulation is 'HJ':
return Jtv
def getSourceTerm(self):
"""
takes concept of source and turns it into a matrix
"""
"""
Evaluates the sources, and puts them in matrix form
:rtype: (numpy.ndarray, numpy.ndarray)
:return: q (nC or nN, nSrc)
"""
Srcs = self.survey.srcList
if self._formulation is 'EB':
n = self.mesh.nN
# return NotImplementedError
elif self._formulation is 'HJ':
n = self.mesh.nC
q = np.zeros((n, len(Srcs)))
for i, src in enumerate(Srcs):
q[:,i] = src.eval(self)
return q
@property
def deleteTheseOnModelUpdate(self):
toDelete = []
return toDelete
# assume log rho or log cond
@property
def MeSigma(self):
"""
Edge inner product matrix for \\(\\sigma\\). Used in the E-B formulation
"""
if getattr(self, '_MeSigma', None) is None:
self._MeSigma = self.mesh.getEdgeInnerProduct(self.sigma)
return self._MeSigma
@property
def MfRhoI(self):
"""
Inverse of :code:`MfRho`
"""
if getattr(self, '_MfRhoI', None) is None:
self._MfRhoI = self.mesh.getFaceInnerProduct(self.rho, invMat=True)
return self._MfRhoI
def MfRhoIDeriv(self,u):
"""
Derivative of :code:`MfRhoI` with respect to the model.
"""
dMfRhoI_dI = -self.MfRhoI**2
dMf_drho = self.mesh.getFaceInnerProductDeriv(self.rho)(u)
drho_dlogrho = Utils.sdiag(self.rho)
return dMfRhoI_dI * ( dMf_drho * ( drho_dlogrho))
# TODO: This should take a vector
def MeSigmaDeriv(self, u):
"""
Derivative of MeSigma with respect to the model
"""
dsigma_dlogsigma = Utils.sdiag(self.sigma)
return self.mesh.getEdgeInnerProductDeriv(self.sigma)(u) * dsigma_dlogsigma
class Problem3D_CC(BaseSIPProblem):
_solutionType = 'phiSolution'
_formulation = 'HJ' # CC potentials means J is on faces
fieldsPair = Fields_CC
def __init__(self, mesh, **kwargs):
BaseSIPProblem.__init__(self, mesh, **kwargs)
self.setBC()
def getA(self):
"""
Make the A matrix for the cell centered DC resistivity problem
A = D MfRhoI G
"""
D = self.Div
G = self.Grad
# TODO: this won't work for full anisotropy
MfRhoI = self.MfRhoI
A = D * MfRhoI * G
# I think we should deprecate this for DC problem.
# if self._makeASymmetric is True:
# return V.T * A
return A
def getADeriv(self, u, v, adjoint= False):
D = self.Div
G = self.Grad
MfRhoIDeriv = self.MfRhoIDeriv
if adjoint:
# if self._makeASymmetric is True:
# v = V * v
return(MfRhoIDeriv( G * u ).T) * ( D.T * v)
# I think we should deprecate this for DC problem.
# if self._makeASymmetric is True:
# return V.T * ( D * ( MfRhoIDeriv( D.T * ( V * u ) ) * v ) )
return D * (MfRhoIDeriv( G * u ) * v)
def getRHS(self):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm()
# I think we should deprecate this for DC problem.
# if self._makeASymmetric is True:
# return self.Vol.T * RHS
return RHS
def getRHSDeriv(self, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, adjoint=adjoint)
# return qDeriv
return Zero()
def setBC(self):
if self.mesh.dim==3:
fxm,fxp,fym,fyp,fzm,fzp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
gBFzm = self.mesh.gridFz[fzm,:]
gBFzp = self.mesh.gridFz[fzp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
temp_zm, temp_zp = np.ones_like(gBFzm[:,2]), np.ones_like(gBFzp[:,2])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
alpha_zm, alpha_zp = temp_zm*0., temp_zp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
beta_zm, beta_zp = temp_zm, temp_zp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
gamma_zm, gamma_zp = temp_zm*0., temp_zp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp, alpha_zm, alpha_zp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp, beta_zm, beta_zp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp, gamma_zm, gamma_zp]
elif self.mesh.dim==2:
fxm,fxp,fym,fyp = self.mesh.faceBoundaryInd
gBFxm = self.mesh.gridFx[fxm,:]
gBFxp = self.mesh.gridFx[fxp,:]
gBFym = self.mesh.gridFy[fym,:]
gBFyp = self.mesh.gridFy[fyp,:]
# Setup Mixed B.C (alpha, beta, gamma)
temp_xm, temp_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
temp_ym, temp_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
alpha_xm, alpha_xp = temp_xm*0., temp_xp*0.
alpha_ym, alpha_yp = temp_ym*0., temp_yp*0.
beta_xm, beta_xp = temp_xm, temp_xp
beta_ym, beta_yp = temp_ym, temp_yp
gamma_xm, gamma_xp = temp_xm*0., temp_xp*0.
gamma_ym, gamma_yp = temp_ym*0., temp_yp*0.
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp]
x_BC, y_BC = getxBCyBC_CC(self.mesh, alpha, beta, gamma)
V = self.Vol
self.Div = V * self.mesh.faceDiv
P_BC, B = self.mesh.getBCProjWF_simple()
M = B*self.mesh.aveCC2F
self.Grad = self.Div.T - P_BC*Utils.sdiag(y_BC)*M
class Problem3D_N(BaseSIPProblem):
_solutionType = 'phiSolution'
_formulation = 'EB' # N potentials means B is on faces
fieldsPair = Fields_N
def __init__(self, mesh, **kwargs):
BaseSIPProblem.__init__(self, mesh, **kwargs)
def getA(self):
"""
Make the A matrix for the cell centered DC resistivity problem
A = G.T MeSigma G
"""
# TODO: this won't work for full anisotropy
MeSigma = self.MeSigma
Grad = self.mesh.nodalGrad
A = Grad.T * MeSigma * Grad
# Handling Null space of A
A[0,0] = A[0,0] + 1.
return A
def getADeriv(self, u, v, adjoint=False):
"""
Product of the derivative of our system matrix with respect to the model and a vector
"""
MeSigma = self.MeSigma
Grad = self.mesh.nodalGrad
if not adjoint:
return Grad.T*(self.MeSigmaDeriv(Grad*u)*v)
elif adjoint:
return self.MeSigmaDeriv(Grad*u).T * (Grad*v)
def getRHS(self):
"""
RHS for the DC problem
q
"""
RHS = self.getSourceTerm()
return RHS
def getRHSDeriv(self, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
"""
# TODO: add qDeriv for RHS depending on m
# qDeriv = src.evalDeriv(self, adjoint=adjoint)
# return qDeriv
return Zero()
if __name__ == '__main__':
cs = 12.5
hx = [(cs,7, -1.3),(cs,21),(cs,7, 1.3)]
hy = [(cs,7, -1.3),(cs,21),(cs,7, 1.3)]
hz = [(cs,7, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy, hz],x0="CCN")
sigma = np.ones(mesh.nC)
prob = BaseSIPProblem(mesh, sigma=sigma)
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from SimPEG import Utils, Maps, Mesh, sp, np
from SimPEG.Regularization import BaseRegularization, Simple
class MultiRegularization(Simple):
"""
**MultiRegularization Class**
This is used to regularize the model space
having multiple models [m1, m2, m3, ...] ::
reg = Regularization(mesh)
"""
nModels = None # Number of models
ratios = None # Ratio for different models
crossgrad = False # Use cross gradient or not
betacross = 1.
wx = []
wy = []
wz = []
def __init__(self, mesh, mapping=None, indActive=None, **kwargs):
BaseRegularization.__init__(self, mesh, mapping=mapping, indActive=indActive, **kwargs)
if self.nModels == None:
raise Exception("Put nModels as a initial input!")
if self.ratios == None:
self.ratios = [1. for imodel in range(self.nModels)]
@property
def Wsmall(self):
"""Regularization matrix Wsmall"""
if getattr(self,'_Wsmall', None) is None:
vecs = []
for imodel in range(self.nModels):
vecs.append((self.regmesh.vol*self.alpha_s*self.wght*self.ratios[imodel])**0.5)
self._Wsmall = Utils.sdiag(np.hstack(vecs))
return self._Wsmall
@property
def Wx(self):
"""Regularization matrix Wx"""
if getattr(self, '_Wx', None) is None:
mats = []
for imodel in range(self.nModels):
self.wx.append(Utils.sdiag((self.regmesh.aveCC2Fx * self.regmesh.vol*self.alpha_x*self.ratios[imodel]*(self.regmesh.aveCC2Fx*self.wght))**0.5))
mats.append(self.wx[imodel]*self.regmesh.cellDiffxStencil)
self._Wx = sp.block_diag(mats)
return self._Wx
@property
def Wy(self):
"""Regularization matrix Wy"""
if getattr(self, '_Wy', None) is None:
mats = []
for imodel in range(self.nModels):
self.wy.append(Utils.sdiag((self.regmesh.aveCC2Fy * self.regmesh.vol*self.alpha_y*self.ratios[imodel]*(self.regmesh.aveCC2Fy*self.wght))**0.5))
mats.append(self.wy[imodel]*self.regmesh.cellDiffyStencil)
self._Wy = sp.block_diag(mats)
return self._Wy
@property
def Wz(self):
"""Regularization matrix Wz"""
if getattr(self, '_Wz', None) is None:
mats = []
for imodel in range(self.nModels):
self.wz.append(Utils.sdiag((self.regmesh.aveCC2Fz * self.regmesh.vol*self.alpha_z*self.ratios[imodel]*(self.regmesh.aveCC2Fz*self.wght))**0.5))
mats.append(self.wz[imodel]*self.regmesh.cellDiffzStencil)
self._Wz = sp.block_diag(mats)
return self._Wz
@property
def Wsmooth(self):
"""Full smoothness regularization matrix W"""
if getattr(self, '_Wsmooth', None) is None:
wlist = (self.Wx,)
if self.regmesh.dim > 1:
wlist += (self.Wy,)
if self.regmesh.dim > 2:
wlist += (self.Wz,)
self._Wsmooth = sp.vstack(wlist)
return self._Wsmooth
@property
def W(self):
"""Full regularization matrix W"""
if getattr(self, '_W', None) is None:
wlist = (self.Wsmall, self.Wsmooth)
self._W = sp.vstack(wlist)
return self._W
@Utils.timeIt
def eval(self, m):
return self._evalSmall(m) + self._evalSmooth(m)
@Utils.timeIt
def _evalSmall(self, m):
r = self.Wsmall * ( self.mapping * (m - self.mref) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmooth(self, m):
if self.mrefInSmooth == True:
r = self.Wsmooth * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wsmooth * ( self.mapping * m)
return 0.5 * r.dot(r)
def cross(a,b):
ax, ay, az = a[0], a[1], a[2]
bx, by, bz = b[0], b[1], b[2]
cx = ay*bz - az*by
cy = az*bx - ax*bz
cz = ax*by - ay*bx
return [cx, cy, cz]
# TODO: Implement Cross Gradients..
@Utils.timeIt
def _evalCross(self, m):
if self.crossgrad == False:
return 0.
elif self.crossgrad == True:
M = (self.mapping * m).reshape((self.regmesh.nC, self.nModels), order="F")
ax = self.regmesh.aveFx2CC*self.regmesh.wx[0]*M[:,0]
ay = self.regmesh.aveFy2CC*self.regmesh.wy[0]*M[:,0]
az = self.regmesh.aveFz2CC*self.regmesh.wz[0]*M[:,0]
bx = self.regmesh.aveFx2CC*self.regmesh.wx[1]*M[:,1]
by = self.regmesh.aveFy2CC*self.regmesh.wy[1]*M[:,1]
bz = self.regmesh.aveFz2CC*self.regmesh.wz[1]*M[:,1]
#ab
out_ab = cross([ax, ay, az], [bx, by, bz])
r = np.r_[out_ab[0], out_ab[1], out_ab[2]]*np.sqrt(self.betacross)
if self.nModels == 3:
cx = self.regmesh.aveFx2CC*self.regmesh.wx[1]*M[:,1]
cy = self.regmesh.aveFy2CC*self.regmesh.wy[1]*M[:,1]
cz = self.regmesh.aveFz2CC*self.regmesh.wz[1]*M[:,1]
#ac
out_ac = cross([ax, ay, az], [cx, cy, cz])
#bc
out_bc = cross([bx, by, bz], [cx, cy, cz])
r = np.r_[r, np.hstack(out_ac)*np.sqrt(self.betacross), np.hstack(out_bc)*np.sqrt(self.betacross)]
return 0.5 * r.dot(r)
@Utils.timeIt
def evalDeriv(self, m):
"""
The regularization is:
.. math::
R(m) = \\frac{1}{2}\mathbf{(m-m_\\text{ref})^\\top W^\\top W(m-m_\\text{ref})}
So the derivative is straight forward:
.. math::
R(m) = \mathbf{W^\\top W (m-m_\\text{ref})}
"""
deriv = self._evalSmallDeriv(m) + self._evalSmoothDeriv(m)
if self.crossgrad==True:
deriv += self._evalCrossDeriv(m)
return deriv
@Utils.timeIt
def _evalCrossDeriv(self,m):
r = self.Wsmall * ( self.mapping * (m - self.mref) )
return r.T * ( self.Wsmall * self.mapping.deriv(m - self.mref) )
@Utils.timeIt
def eval2Deriv(self, m, v=None):
"""
Second derivative
:param numpy.array m: geophysical model
:param numpy.array v: vector to multiply
:rtype: scipy.sparse.csr_matrix or numpy.ndarray
:return: WtW or WtW*v
The regularization is:
.. math::
R(m) = \\frac{1}{2}\mathbf{(m-m_\\text{ref})^\\top W^\\top W(m-m_\\text{ref})}
So the second derivative is straight forward:
.. math::
R(m) = \mathbf{W^\\top W}
"""
mD = self.mapping.deriv(m - self.mref)
if v is None:
return mD.T * self.W.T * self.W * mD
return mD.T * ( self.W.T * ( self.W * ( mD * v) ) )
-88
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@@ -1,88 +0,0 @@
import SimPEG
import numpy as np
from SimPEG.Utils import Zero, closestPoints
class BaseRx(SimPEG.Survey.BaseTimeRx):
locs = None
rxType = None
knownRxTypes = {
'phi':['phi',None],
'ex':['e','x'],
'ey':['e','y'],
'ez':['e','z'],
'jx':['j','x'],
'jy':['j','y'],
'jz':['j','z'],
}
def __init__(self, locs, times, rxType, **kwargs):
SimPEG.Survey.BaseTimeRx.__init__(self, locs, times, rxType, **kwargs)
@property
def projField(self):
"""Field Type projection (e.g. e b ...)"""
return self.knownRxTypes[self.rxType][0]
def projGLoc(self, f):
"""Grid Location projection (e.g. Ex Fy ...)"""
comp = self.knownRxTypes[self.rxType][1]
if comp is not None:
return f._GLoc(self.rxType) + comp
return f._GLoc(self.rxType)
def getTimeP(self, timesall):
"""
Returns the time projection matrix.
.. note::
This is not stored in memory, but is created on demand.
"""
time_inds = np.in1d(timesall, self.times)
return time_inds
def evalDeriv(self, src, mesh, f, v, adjoint=False):
P = self.getP(mesh, self.projGLoc(f))
if not adjoint:
return P*v
elif adjoint:
return P.T*v
# DC.Rx.Dipole(locs)
class Dipole(BaseRx):
def __init__(self, locsM, locsN, times, rxType = 'phi', **kwargs):
assert locsM.shape == locsN.shape, 'locsM and locsN need to be the same size'
locs = [locsM, locsN]
# We may not need this ...
BaseRx.__init__(self, locs, times, rxType)
@property
def nD(self):
"""Number of data in the receiver."""
# return self.locs[0].shape[0] * len(self.times)
return self.locs[0].shape[0]
@property
def nRx(self):
"""Number of data in the receiver."""
return self.locs[0].shape[0]
# Not sure why ...
# return int(self.locs[0].size / 2)
def getP(self, mesh, Gloc):
if mesh in self._Ps:
return self._Ps[mesh]
P0 = mesh.getInterpolationMat(self.locs[0], Gloc)
P1 = mesh.getInterpolationMat(self.locs[1], Gloc)
P = P0 - P1
if self.storeProjections:
self._Ps[mesh] = P
return P
-64
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@@ -1,64 +0,0 @@
import SimPEG
# from SimPEG.EM.Base import BaseEMSurvey
from SimPEG.Utils import Zero, closestPoints, mkvc
import numpy as np
class BaseSrc(SimPEG.Survey.BaseSrc):
current = 1.0
loc = None
def __init__(self, rxList, **kwargs):
SimPEG.Survey.BaseSrc.__init__(self, rxList, **kwargs)
def eval(self, prob):
raise NotImplementedError
def evalDeriv(self, prob):
return Zero()
@property
def nD(self):
"""Number of data"""
return self.vnD.sum()
@property
def vnD(self):
"""Vector number of data"""
return np.array([rx.nD*len(rx.times) for rx in self.rxList])
class Dipole(BaseSrc):
def __init__(self, rxList, locA, locB, **kwargs):
assert locA.shape == locB.shape, 'Shape of locA and locB should be the same'
self.loc = [locA, locB]
BaseSrc.__init__(self, rxList, **kwargs)
def eval(self, prob):
if prob._formulation == 'HJ':
inds = closestPoints(prob.mesh, self.loc, gridLoc='CC')
q = np.zeros(prob.mesh.nC)
q[inds] = self.current * np.r_[1., -1.]
elif prob._formulation == 'EB':
qa = prob.mesh.getInterpolationMat(self.loc[0], locType='N').todense()
qb = -prob.mesh.getInterpolationMat(self.loc[1], locType='N').todense()
q = self.current * mkvc(qa+qb)
return q
class Pole(BaseSrc):
def __init__(self, rxList, loc, **kwargs):
BaseSrc.__init__(self, rxList, loc=loc, **kwargs)
def eval(self, prob):
if prob._formulation == 'HJ':
inds = closestPoints(prob.mesh, self.loc)
q = np.zeros(prob.mesh.nC)
q[inds] = self.current * np.r_[1.]
elif prob._formulation == 'EB':
q = prob.mesh.getInterpolationMat(self.loc, locType='N').todense()
q = self.current * mkvc(q)
return q
-102
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@@ -1,102 +0,0 @@
import SimPEG
from SimPEG.EM.Base import BaseEMSurvey
from SimPEG import np, sp, Survey, Utils
from SimPEG.Utils import Zero, Identity
from SimPEG.EM.Static.SIP.SrcSIP import BaseSrc
from SimPEG.EM.Static.SIP.RxSIP import BaseRx
import uuid
class Survey(BaseEMSurvey):
rxPair = BaseRx
srcPair = BaseSrc
times = None
def __init__(self, srcList, **kwargs):
self.srcList = srcList
BaseEMSurvey.__init__(self, srcList, **kwargs)
self.getUniqueTimes()
def getUniqueTimes(self):
time_rx = []
for src in self.srcList:
for rx in src.rxList:
time_rx.append(rx.times)
self.times = np.unique(np.hstack(time_rx))
def dpred(self, m, f=None):
"""
Predicted data.
.. math::
d_\\text{pred} = Pf(m)
"""
return self.prob.forward(m, f=f)
class Data(SimPEG.Survey.Data):
"""Fancy data storage by Src and Rx"""
def __init__(self, survey, v=None):
self.uid = str(uuid.uuid4())
self.survey = survey
self._dataDict = {}
for src in self.survey.srcList:
self._dataDict[src] = {}
for rx in src.rxList:
self._dataDict[src][rx] = {}
if v is not None:
self.fromvec(v)
def _ensureCorrectKey(self, key):
if type(key) is tuple:
if len(key) is not 3:
raise KeyError('Key must be [Src, Rx, tInd]')
if key[0] not in self.survey.srcList:
raise KeyError('Src Key must be a source in the survey.')
if key[1] not in key[0].rxList:
raise KeyError('Rx Key must be a receiver for the source.')
return key
elif isinstance(key, self.survey.srcPair):
if key not in self.survey.srcList:
raise KeyError('Key must be a source in the survey.')
return key, None, None
else:
raise KeyError('Key must be [Src] or [Src,Rx] or [Src, Rx, tInd]')
def __setitem__(self, key, value):
src, rx, t = self._ensureCorrectKey(key)
assert rx is not None, 'set data using [Src, Rx]'
assert isinstance(value, np.ndarray), 'value must by ndarray'
assert value.size == rx.nD, "value must have the same number of data as the source."
self._dataDict[src][rx][t] = Utils.mkvc(value)
def __getitem__(self, key):
src, rx, t = self._ensureCorrectKey(key)
if rx is not None:
if rx not in self._dataDict[src]:
raise Exception('Data for receiver has not yet been set.')
return self._dataDict[src][rx][t]
return np.concatenate([self[src,rx, t] for rx in src.rxList])
def tovec(self):
val = []
for src in self.survey.srcList:
for rx in src.rxList:
for t in rx.times:
val.append(self[src, rx, t])
return np.concatenate(val)
def fromvec(self, v):
v = Utils.mkvc(v)
assert v.size == self.survey.nD, 'v must have the correct number of data.'
indBot, indTop = 0, 0
for src in self.survey.srcList:
for rx in src.rxList:
for t in rx.times:
indTop += rx.nRx
self[src, rx, t] = v[indBot:indTop]
indBot += rx.nRx
-5
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@@ -1,5 +0,0 @@
from ProblemSIP import Problem3D_CC, Problem3D_N
from SurveySIP import Survey, Data
import SrcSIP as Src #Pole
import RxSIP as Rx
from Regularization import MultiRegularization
-317
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@@ -1,317 +0,0 @@
from SimPEG import np
from SimPEG.EM.Static import DC, IP
def plot_pseudoSection(DCsurvey, axs, stype='dpdp', dtype="appc", clim=None):
"""
Read list of 2D tx-rx location and plot a speudo-section of apparent
resistivity.
Assumes flat topo for now...
Input:
:param d2D, z0
:switch stype -> Either 'pdp' (pole-dipole) | 'dpdp' (dipole-dipole)
:switch dtype=-> Either 'appr' (app. res) | 'appc' (app. con) | 'volt' (potential)
Output:
:figure scatter plot overlayed on image
Edited Feb 17th, 2016
@author: dominiquef
"""
from SimPEG import np
from scipy.interpolate import griddata
import pylab as plt
# Set depth to 0 for now
z0 = 0.
# Pre-allocate
midx = []
midz = []
rho = []
LEG = []
count = 0 # Counter for data
for ii in range(DCsurvey.nSrc):
Tx = DCsurvey.srcList[ii].loc
Rx = DCsurvey.srcList[ii].rxList[0].locs
nD = DCsurvey.srcList[ii].rxList[0].nD
data = DCsurvey.dobs[count:count+nD]
count += nD
# Get distances between each poles A-B-M-N
if stype == 'pdp':
MA = np.abs(Tx[0] - Rx[0][:,0])
NA = np.abs(Tx[0] - Rx[1][:,0])
MN = np.abs(Rx[1][:,0] - Rx[0][:,0])
# Create mid-point location
Cmid = Tx[0]
Pmid = (Rx[0][:,0] + Rx[1][:,0])/2
if DCsurvey.mesh.dim == 2:
zsrc = Tx[1]
elif DCsurvey.mesh.dim ==3:
zsrc = Tx[2]
elif stype == 'dpdp':
MA = np.abs(Tx[0][0] - Rx[0][:,0])
MB = np.abs(Tx[1][0] - Rx[0][:,0])
NA = np.abs(Tx[0][0] - Rx[1][:,0])
NB = np.abs(Tx[1][0] - Rx[1][:,0])
# Create mid-point location
Cmid = (Tx[0][0] + Tx[1][0])/2
Pmid = (Rx[0][:,0] + Rx[1][:,0])/2
if DCsurvey.mesh.dim == 2:
zsrc = (Tx[0][1] + Tx[1][1])/2
elif DCsurvey.mesh.dim ==3:
zsrc = (Tx[0][2] + Tx[1][2])/2
# Change output for dtype
if dtype == 'volt':
rho = np.hstack([rho,data])
else:
# Compute pant leg of apparent rho
if stype == 'pdp':
leg = data * 2*np.pi * MA * ( MA + MN ) / MN
elif stype == 'dpdp':
leg = data * 2*np.pi / ( 1/MA - 1/MB + 1/NB - 1/NA )
LEG.append(1./(2*np.pi) *( 1/MA - 1/MB + 1/NB - 1/NA ))
else:
print """dtype must be 'pdp'(pole-dipole) | 'dpdp' (dipole-dipole) """
break
if dtype == 'appc':
leg = np.log10(abs(1./leg))
rho = np.hstack([rho,leg])
elif dtype == 'appr':
leg = np.log10(abs(leg))
rho = np.hstack([rho,leg])
else:
print """dtype must be 'appr' | 'appc' | 'volt' """
break
midx = np.hstack([midx, ( Cmid + Pmid )/2 ])
if DCsurvey.mesh.dim==3:
midz = np.hstack([midz, -np.abs(Cmid-Pmid)/2 + zsrc ])
elif DCsurvey.mesh.dim==2:
midz = np.hstack([midz, -np.abs(Cmid-Pmid)/2 + zsrc ])
ax = axs
# Grid points
grid_x, grid_z = np.mgrid[np.min(midx):np.max(midx), np.min(midz):np.max(midz)]
grid_rho = griddata(np.c_[midx,midz], rho.T, (grid_x, grid_z), method='linear')
if clim == None:
vmin, vmax = rho.min(), rho.max()
else:
vmin, vmax = clim[0], clim[1]
grid_rho = np.ma.masked_where(np.isnan(grid_rho), grid_rho)
ph = plt.pcolormesh(grid_x[:,0],grid_z[0,:],grid_rho.T, clim=(vmin, vmax), vmin=vmin, vmax=vmax)
cbar = plt.colorbar(format="$10^{%.1f}$",fraction=0.04,orientation="horizontal")
cmin,cmax = cbar.get_clim()
ticks = np.linspace(cmin,cmax,3)
cbar.set_ticks(ticks)
cbar.ax.tick_params(labelsize=10)
if dtype == 'appc':
cbar.set_label("App.Cond",size=12)
elif dtype == 'appr':
cbar.set_label("App.Res.",size=12)
elif dtype == 'volt':
cbar.set_label("Potential (V)",size=12)
# Plot apparent resistivity
ax.scatter(midx,midz,s=10,c=rho.T, vmin =vmin, vmax = vmax, clim=(vmin, vmax))
#ax.set_xticklabels([])
#ax.set_yticklabels([])
plt.gca().set_aspect('equal', adjustable='box')
return ph, LEG
def gen_DCIPsurvey(endl, mesh, stype, a, b, n):
"""
Load in endpoints and survey specifications to generate Tx, Rx location
stations.
Assumes flat topo for now...
Input:
:param endl -> input endpoints [x1, y1, z1, x2, y2, z2]
:object mesh -> SimPEG mesh object
:switch stype -> "dpdp" (dipole-dipole) | "pdp" (pole-dipole) | 'gradient'
: param a, n -> pole seperation, number of rx dipoles per tx
Output:
:param Tx, Rx -> List objects for each tx location
Lines: P1x, P1y, P1z, P2x, P2y, P2z
Created on Wed December 9th, 2015
@author: dominiquef
!! Require clean up to deal with DCsurvey
"""
from SimPEG import np
def xy_2_r(x1,x2,y1,y2):
r = np.sqrt( np.sum((x2 - x1)**2 + (y2 - y1)**2) )
return r
## Evenly distribute electrodes and put on surface
# Mesure survey length and direction
dl_len = xy_2_r(endl[0,0],endl[1,0],endl[0,1],endl[1,1])
dl_x = ( endl[1,0] - endl[0,0] ) / dl_len
dl_y = ( endl[1,1] - endl[0,1] ) / dl_len
nstn = np.floor( dl_len / a )
# Compute discrete pole location along line
stn_x = endl[0,0] + np.array(range(int(nstn)))*dl_x*a
stn_y = endl[0,1] + np.array(range(int(nstn)))*dl_y*a
if mesh.dim==2:
ztop = mesh.vectorNy[-1]
# Create line of P1 locations
M = np.c_[stn_x, np.ones(nstn).T*ztop]
# Create line of P2 locations
N = np.c_[stn_x+a*dl_x, np.ones(nstn).T*ztop]
elif mesh.dim==3:
ztop = mesh.vectorNz[-1]
# Create line of P1 locations
M = np.c_[stn_x, stn_y, np.ones(nstn).T*ztop]
# Create line of P2 locations
N = np.c_[stn_x+a*dl_x, stn_y+a*dl_y, np.ones(nstn).T*ztop]
## Build list of Tx-Rx locations depending on survey type
# Dipole-dipole: Moving tx with [a] spacing -> [AB a MN1 a MN2 ... a MNn]
# Pole-dipole: Moving pole on one end -> [A a MN1 a MN2 ... MNn a B]
SrcList = []
if stype != 'gradient':
for ii in range(0, int(nstn)-1):
if stype == 'dpdp':
tx = np.c_[M[ii,:],N[ii,:]]
elif stype == 'pdp':
tx = np.c_[M[ii,:],M[ii,:]]
# Rx.append(np.c_[M[ii+1:indx,:],N[ii+1:indx,:]])
# Current elctrode seperation
AB = xy_2_r(tx[0,1],endl[1,0],tx[1,1],endl[1,1])
# Number of receivers to fit
nstn = np.min([np.floor( (AB - b) / a ) , n])
# Check if there is enough space, else break the loop
if nstn <= 0:
continue
# Compute discrete pole location along line
stn_x = N[ii,0] + dl_x*b + np.array(range(int(nstn)))*dl_x*a
stn_y = N[ii,1] + dl_y*b + np.array(range(int(nstn)))*dl_y*a
# Create receiver poles
if mesh.dim==3:
# Create line of P1 locations
P1 = np.c_[stn_x, stn_y, np.ones(nstn).T*ztop]
# Create line of P2 locations
P2 = np.c_[stn_x+a*dl_x, stn_y+a*dl_y, np.ones(nstn).T*ztop]
rxClass = DC.Rx.Dipole(P1, P2)
elif mesh.dim==2:
# Create line of P1 locations
P1 = np.c_[stn_x, np.ones(nstn).T*ztop]
# Create line of P2 locations
P2 = np.c_[stn_x+a*dl_x, np.ones(nstn).T*ztop]
rxClass = DC.Rx.Dipole_ky(P1, P2)
if stype == 'dpdp':
srcClass = DC.Src.Dipole([rxClass], M[ii,:],N[ii,:])
elif stype == 'pdp':
srcClass = DC.Src.Pole([rxClass], M[ii,:])
SrcList.append(srcClass)
elif stype == 'gradient':
# Gradient survey only requires Tx at end of line and creates a square
# grid of receivers at in the middle at a pre-set minimum distance
# Get the edge limit of survey area
min_x = endl[0,0] + dl_x * b
min_y = endl[0,1] + dl_y * b
max_x = endl[1,0] - dl_x * b
max_y = endl[1,1] - dl_y * b
box_l = np.sqrt( (min_x - max_x)**2 + (min_y - max_y)**2 )
box_w = box_l/2.
nstn = np.floor( box_l / a )
# Compute discrete pole location along line
stn_x = min_x + np.array(range(int(nstn)))*dl_x*a
stn_y = min_y + np.array(range(int(nstn)))*dl_y*a
# Define number of cross lines
nlin = int(np.floor( box_w / a ))
lind = range(-nlin,nlin+1)
ngrad = nstn * len(lind)
rx = np.zeros([ngrad,6])
for ii in range( len(lind) ):
# Move line in perpendicular direction by dipole spacing
lxx = stn_x - lind[ii]*a*dl_y
lyy = stn_y + lind[ii]*a*dl_x
M = np.c_[ lxx, lyy , np.ones(nstn).T*ztop]
N = np.c_[ lxx+a*dl_x, lyy+a*dl_y, np.ones(nstn).T*ztop]
rx[(ii*nstn):((ii+1)*nstn),:] = np.c_[M,N]
if mesh.dim==3:
rxClass = DC.Rx.Dipole(rx[:,:3], rx[:,3:])
elif mesh.dim==2:
M = M[:,[0,2]]
N = N[:,[0,2]]
rxClass = DC.Rx.Dipole_ky(rx[:,[0,2]], rx[:,[3,5]])
srcClass = DC.Src.Dipole([rxClass], M[0,:], N[-1,:])
SrcList.append(srcClass)
else:
print """stype must be either 'pdp', 'dpdp' or 'gradient'. """
return SrcList
-1
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@@ -1 +0,0 @@
from StaticUtils import *
-3
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@@ -1,3 +0,0 @@
import DC
import IP
import SIP
+6 -6
View File
@@ -87,7 +87,7 @@ class SrcTDEM_VMD_MVP(SrcTDEM):
def getInitialFields(self, mesh):
"""Vertical magnetic dipole, magnetic vector potential"""
if self.waveformType == "STEPOFF":
print ">> Step waveform: Non-zero initial condition"
print ">> Step waveform: Non-zero initial condition"
if mesh._meshType is 'CYL':
if mesh.isSymmetric:
MVP = MagneticDipoleVectorPotential(self.loc, mesh, 'Ey')
@@ -96,8 +96,8 @@ class SrcTDEM_VMD_MVP(SrcTDEM):
elif mesh._meshType is 'TENSOR':
MVP = MagneticDipoleVectorPotential(self.loc, mesh, ['Ex','Ey','Ez'])
else:
raise Exception('Unknown mesh for VMD')
return {"b": mesh.edgeCurl*MVP}
raise Exception('Unknown mesh for VMD')
return {"b": mesh.edgeCurl*MVP}
elif self.waveformType == "GENERAL":
print ">> General waveform: Zero initial condition"
return {"b": np.zeros(mesh.nF)}
@@ -113,7 +113,7 @@ class SrcTDEM_VMD_MVP(SrcTDEM):
elif mesh._meshType is 'TENSOR':
MVP = MagneticDipoleVectorPotential(self.loc, mesh, ['Ex','Ey','Ez'])
else:
raise Exception('Unknown mesh for VMD')
raise Exception('Unknown mesh for VMD')
return mesh.edgeCurl.T*MfMui*mesh.edgeCurl*MVP
@@ -122,7 +122,7 @@ class SrcTDEM_CircularLoop_MVP(SrcTDEM):
self.loc = loc
self.radius = radius
self.waveformType = waveformType
SrcTDEM.__init__(self,rxList)
SrcTDEM.__init__(self,rxList)
def getInitialFields(self, mesh):
"""Circular Loop, magnetic vector potential"""
@@ -153,7 +153,7 @@ class SrcTDEM_CircularLoop_MVP(SrcTDEM):
elif mesh._meshType is 'TENSOR':
MVP = MagneticLoopVectorPotential(self.loc, mesh, ['Ex','Ey','Ez'], self.radius)
else:
raise Exception('Unknown mesh for CircularLoop')
raise Exception('Unknown mesh for CircularLoop')
return mesh.edgeCurl.T*MfMui*mesh.edgeCurl*MVP
+12 -17
View File
@@ -20,61 +20,56 @@ def getFDEMProblem(fdemType, comp, SrcList, freq, useMu=False, verbose=False):
mesh = Mesh.TensorMesh([hx,hy,hz],['C','C','C'])
if useMu is True:
mapping = [('sigma', Maps.ExpMap(mesh)), ('mu', Maps.IdentityMap(mesh))]
mapping = [('sigma', Maps.ExpMap(mesh)), ('mu', Maps.IdentityMap(mesh))]
else:
mapping = Maps.ExpMap(mesh)
x = np.array([np.linspace(-5.*cs,-2.*cs,3),np.linspace(5.*cs,2.*cs,3)]) + cs/4. #don't sample right by the source, slightly off alignment from either staggered grid
XYZ = Utils.ndgrid(x,x,np.linspace(-2.*cs,2.*cs,5))
Rx0 = getattr(EM.FDEM.Rx, 'Point_' + comp[0])
if comp[2] == 'r':
real_or_imag = 'real'
elif comp[2] == 'i':
real_or_imag = 'imag'
rx0 = Rx0(XYZ, comp[1], 'imag')
Rx0 = EM.FDEM.Rx(XYZ, comp)
Src = []
for SrcType in SrcList:
if SrcType is 'MagDipole':
Src.append(EM.FDEM.Src.MagDipole([rx0], freq=freq, loc=np.r_[0.,0.,0.]))
Src.append(EM.FDEM.Src.MagDipole([Rx0], freq=freq, loc=np.r_[0.,0.,0.]))
elif SrcType is 'MagDipole_Bfield':
Src.append(EM.FDEM.Src.MagDipole_Bfield([rx0], freq=freq, loc=np.r_[0.,0.,0.]))
Src.append(EM.FDEM.Src.MagDipole_Bfield([Rx0], freq=freq, loc=np.r_[0.,0.,0.]))
elif SrcType is 'CircularLoop':
Src.append(EM.FDEM.Src.CircularLoop([rx0], freq=freq, loc=np.r_[0.,0.,0.]))
Src.append(EM.FDEM.Src.CircularLoop([Rx0], freq=freq, loc=np.r_[0.,0.,0.]))
elif SrcType is 'RawVec':
if fdemType is 'e' or fdemType is 'b':
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])] = 1e-3
S_e[Utils.closestPoints(mesh,[0.,0.,0.],'Ez') + np.sum(mesh.vnE[:1])] = 1e-3
Src.append(EM.FDEM.Src.RawVec([rx0], freq, S_m, mesh.getEdgeInnerProduct()*S_e))
Src.append(EM.FDEM.Src.RawVec([Rx0], freq, S_m, S_e))
elif fdemType is 'h' or fdemType is 'j':
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])] = 1e-3
S_e[Utils.closestPoints(mesh,[0.,0.,0.],'Fz') + np.sum(mesh.vnF[:1])] = 1e-3
Src.append(EM.FDEM.Src.RawVec([rx0], freq, mesh.getEdgeInnerProduct()*S_m, S_e))
Src.append(EM.FDEM.Src.RawVec([Rx0], freq, S_m, S_e))
if verbose:
print ' Fetching %s problem' % (fdemType)
if fdemType == 'e':
survey = EM.FDEM.Survey(Src)
prb = EM.FDEM.Problem3D_e(mesh, mapping=mapping)
prb = EM.FDEM.Problem_e(mesh, mapping=mapping)
elif fdemType == 'b':
survey = EM.FDEM.Survey(Src)
prb = EM.FDEM.Problem3D_b(mesh, mapping=mapping)
prb = EM.FDEM.Problem_b(mesh, mapping=mapping)
elif fdemType == 'j':
survey = EM.FDEM.Survey(Src)
prb = EM.FDEM.Problem3D_j(mesh, mapping=mapping)
prb = EM.FDEM.Problem_j(mesh, mapping=mapping)
elif fdemType == 'h':
survey = EM.FDEM.Survey(Src)
prb = EM.FDEM.Problem3D_h(mesh, mapping=mapping)
prb = EM.FDEM.Problem_h(mesh, mapping=mapping)
else:
raise NotImplementedError()
@@ -95,7 +90,7 @@ def crossCheckTest(SrcList, fdemType1, fdemType2, comp, addrandoms = False, useM
prb1 = getFDEMProblem(fdemType1, comp, SrcList, freq, useMu, verbose)
mesh = prb1.mesh
print 'Cross Checking Forward: %s, %s formulations - %s' % (fdemType1, fdemType2, comp)
logsig = np.log(np.ones(mesh.nC)*CONDUCTIVITY)
mu = np.ones(mesh.nC)*MU
-1
View File
@@ -1,6 +1,5 @@
import TDEM
import FDEM
import Static
import Base
import Analytics
import Utils
+17 -15
View File
@@ -2,7 +2,7 @@ from SimPEG import Mesh, Utils, np, sp
import SimPEG.DCIP as DC
import time
def run(loc=None, sig=None, radi=None, param=None, surveyType='dipole-dipole', unitType='appConductivity', plotIt=True):
def run(loc=None, sig=None, radi=None, param=None, stype='dpdp', dtype='appc', plotIt=True):
"""
DC Forward Simulation
=====================
@@ -15,14 +15,14 @@ def run(loc=None, sig=None, radi=None, param=None, surveyType='dipole-dipole', u
loc = Location of spheres [[x1,y1,z1],[x2,y2,z2]]
radi = Radius of spheres [r1,r2]
param = Conductivity of background and two spheres [m0,m1,m2]
surveyType = survey type 'pole-dipole' or 'dipole-dipole'
unitType = Data type "appResistivity" | "appConductivity" | "volt"
stype = survey type "pdp" (pole dipole) or "dpdp" (dipole dipole)
dtype = Data type "appr" (app res) | "appc" (app cond) | "volt" (potential)
Created by @fourndo
"""
assert surveyType in ['pole-dipole', 'dipole-dipole'], "Source type (surveyType) must be pdp or dpdp (pole dipole or dipole dipole)"
assert unitType in ['appResistivity', 'appConductivity', 'volt'], "Unit type (unitType) must be appResistivity or appConductivity or volt (potential)"
assert stype in ['pdp', 'dpdp'], "Source type (stype) must be pdp or dpdp (pole dipole or dipole dipole)"
assert dtype in ['appr', 'appc', 'volt'], "Data type (dtype) must be appr (app res) or appc (app cond) or volt (potential)"
if loc is None:
loc = np.c_[[-50.,0.,-50.],[50.,0.,-50.]]
@@ -73,8 +73,8 @@ def run(loc=None, sig=None, radi=None, param=None, surveyType='dipole-dipole', u
locs = np.c_[mesh.gridCC[indx,0],mesh.gridCC[indx,1],np.ones(2).T*mesh.vectorNz[-1]]
# We will handle the geometry of the survey for you and create all the combination of tx-rx along line
# [Tx, Rx] = DC.gen_DCIPsurvey(locs, mesh, surveyType, param[0], param[1], param[2])
survey, Tx, Rx = DC.gen_DCIPsurvey(locs, mesh, surveyType, param[0], param[1], param[2])
# [Tx, Rx] = DC.gen_DCIPsurvey(locs, mesh, stype, param[0], param[1], param[2])
survey, Tx, Rx = DC.gen_DCIPsurvey(locs, mesh, stype, param[0], param[1], param[2])
# Define some global geometry
dl_len = np.sqrt( np.sum((locs[0,:] - locs[1,:])**2) )
@@ -118,8 +118,8 @@ def run(loc=None, sig=None, radi=None, param=None, surveyType='dipole-dipole', u
rxloc_N = np.asarray(Rx[ii][:,3:])
# For usual cases 'dipole-dipole' or "gradient"
if surveyType == 'pole-dipole':
# For usual cases "dpdp" or "gradient"
if stype == 'pdp':
# Create an "inifinity" pole
tx = np.squeeze(Tx[ii][:,0:1])
tinf = tx + np.array([dl_x,dl_y,0])*dl_len*2
@@ -157,12 +157,12 @@ def run(loc=None, sig=None, radi=None, param=None, surveyType='dipole-dipole', u
fig = plt.figure(figsize=(7,7))
ax = plt.subplot(2,1,1, aspect='equal')
# Plot the location of the spheres for reference
circle1=plt.Circle((loc[0,0], loc[2,0]), radi[0], color='w', fill=False, lw=3)
circle2=plt.Circle((loc[0,1], loc[2,1]), radi[1], color='k', fill=False, lw=3)
circle1=plt.Circle((loc[0,0],loc[2,0]),radi[0],color='w',fill=False, lw=3)
circle2=plt.Circle((loc[0,1],loc[2,1]),radi[1],color='k',fill=False, lw=3)
ax.add_artist(circle1)
ax.add_artist(circle2)
dat = mesh.plotSlice(np.log10(model), ax = ax, normal = 'Y',
dat = mesh.plotSlice(np.log10(model), ax =ax, normal = 'Y',
ind = indy,grid=True, clim = np.log10([sig.min(),sig.max()]))
ax.set_title('3-D model')
@@ -188,13 +188,15 @@ def run(loc=None, sig=None, radi=None, param=None, surveyType='dipole-dipole', u
ax2 = plt.subplot(2,1,2, aspect='equal')
# Plot the location of the spheres for reference
circle1=plt.Circle((loc[0,0], loc[2,0]), radi[0], color='w', fill=False, lw=3)
circle2=plt.Circle((loc[0,1], loc[2,1]), radi[1], color='k', fill=False, lw=3)
circle1=plt.Circle((loc[0,0],loc[2,0]),radi[0],color='w',fill=False, lw=3)
circle2=plt.Circle((loc[0,1],loc[2,1]),radi[1],color='k',fill=False, lw=3)
ax2.add_artist(circle1)
ax2.add_artist(circle2)
# Add the speudo section
dat = DC.plot_pseudoSection(survey2D, ax2, surveyType=surveyType, unitType=unitType) # plt.scatter(Tx2d[0][:],Tx[0][2,:],s=40,c='g', marker='v')
dat = DC.plot_pseudoSection(survey2D,ax2,stype=stype, dtype = dtype)
# plt.scatter(Tx2d[0][:],Tx[0][2,:],s=40,c='g', marker='v')
# plt.scatter(Rx2d[0][:],Rx[0][:,2::3],s=40,c='y')
# plt.plot(np.r_[Tx2d[0][0],Rx2d[-1][-1,-1]],np.ones(2)*mesh.vectorNz[-1], color='k')
ax2.set_title('Apparent Conductivity data')
+3 -3
View File
@@ -42,8 +42,8 @@ def run(plotIt=True):
ax.grid(color='k', alpha=0.5, linestyle='dashed', linewidth=0.5)
rxOffset=10.
bzi = EM.FDEM.Rx.Point_b(np.array([[rxOffset, 0., 1e-3]]), orientation='z', component='imag')
rxOffset=10.
bzi = EM.FDEM.Rx(np.array([[rxOffset, 0., 1e-3]]), 'bzi')
freqs = np.logspace(1,3,10)
srcLoc = np.array([0., 0., 10.])
@@ -51,7 +51,7 @@ def run(plotIt=True):
srcList = [EM.FDEM.Src.MagDipole([bzi],freq, srcLoc,orientation='Z') for freq in freqs]
survey = EM.FDEM.Survey(srcList)
prb = EM.FDEM.Problem3D_b(mesh, mapping=mapping)
prb = EM.FDEM.Problem_b(mesh, mapping=mapping)
try:
from pymatsolver import MumpsSolver
@@ -215,7 +215,7 @@ def run(plotIt=True):
# ------------ Problem and Survey ---------------
survey = FDEM.Survey(sg_p + dg_p)
mapping = [('sigma', Maps.IdentityMap(mesh))]
problem = FDEM.Problem3D_h(mesh, mapping=mapping)
problem = FDEM.Problem_h(mesh, mapping=mapping)
problem.pair(survey)
# ------------- Solve ---------------------------
@@ -1,25 +1,22 @@
from SimPEG import Mesh, Utils, np, SolverLU
## 2D DC forward modeling example with Tensor and Curvilinear Meshes
def run(plotIt=True):
"""
Mesh: Basic Forward 2D DC Resistivity
=====================================
2D DC forward modeling example with Tensor and Curvilinear Meshes
"""
# Step1: Generate Tensor and Curvilinear Mesh
sz = [40,40]
# Tensor Mesh
tM = Mesh.TensorMesh(sz)
# Curvilinear Mesh
rM = Mesh.CurvilinearMesh(Utils.meshutils.exampleLrmGrid(sz,'rotate'))
# Step2: Direct Current (DC) operator
def DCfun(mesh, pts):
D = mesh.faceDiv
G = D.T
sigma = 1e-2*np.ones(mesh.nC)
MsigI = mesh.getFaceInnerProduct(sigma, invProp=True, invMat=True)
A = -D*MsigI*D.T
Msigi = mesh.getFaceInnerProduct(1./sigma)
MsigI = Utils.sdInv(Msigi)
A = D*MsigI*G
A[-1,-1] /= mesh.vol[-1] # Remove null space
rhs = np.zeros(mesh.nC)
txind = Utils.meshutils.closestPoints(mesh, pts)
@@ -40,17 +37,39 @@ def run(plotIt=True):
if not plotIt: return
import matplotlib.pyplot as plt
import matplotlib
from matplotlib.mlab import griddata
#Step4: Making Figure
fig, axes = plt.subplots(1,2,figsize=(12*1.2,4*1.2))
label = ["(a)", "(b)"]
opts = {}
vmin, vmax = phitM.min(), phitM.max()
dat = tM.plotImage(phitM, ax=axes[0], clim=(vmin, vmax), grid=True)
dat = rM.plotImage(phirM, ax=axes[1], clim=(vmin, vmax), grid=True)
#TODO: At the moment Curvilinear Mesh do not have plotimage
Xi = tM.gridCC[:,0].reshape(sz[0], sz[1], order='F')
Yi = tM.gridCC[:,1].reshape(sz[0], sz[1], order='F')
PHIrM = griddata(rM.gridCC[:,0], rM.gridCC[:,1], phirM, Xi, Yi, interp='linear')
axes[1].contourf(Xi, Yi, PHIrM, 100, vmin=vmin, vmax=vmax)
cb = plt.colorbar(dat[0], ax=axes[0]); cb.set_label("Voltage (V)")
cb = plt.colorbar(dat[0], ax=axes[1]); cb.set_label("Voltage (V)")
tM.plotGrid(ax=axes[0], **opts)
axes[0].set_title('TensorMesh')
rM.plotGrid(ax=axes[1], **opts)
axes[1].set_title('CurvilinearMesh')
for i in range(2):
axes[i].set_xlim(0.025, 0.975)
axes[i].set_ylim(0.025, 0.975)
axes[i].text(0., 1.0, label[i], fontsize=20)
if i==0:
axes[i].set_ylabel("y")
else:
axes[i].set_ylabel(" ")
axes[i].set_xlabel("x")
plt.show()
+44 -36
View File
@@ -1,7 +1,7 @@
from SimPEG import *
def run(N=100, plotIt=True):
def run(N=200, plotIt=True):
"""
Inversion: Linear Problem
=========================
@@ -18,8 +18,6 @@ def run(N=100, plotIt=True):
mesh = Mesh.TensorMesh([N])
m0 = np.ones(mesh.nC) * 1e-4
mref = np.zeros(mesh.nC)
nk = 10
jk = np.linspace(1.,nk,nk)
p = -2.
@@ -52,47 +50,57 @@ def run(N=100, plotIt=True):
wr = np.sum(prob.G**2.,axis=0)**0.5
wr = ( wr/np.max(wr) )
# reg = Regularization.Simple(mesh)
# reg.mref = mref
# reg.cell_weights = wr
#
reg = Regularization.Simple(mesh)
reg.wght = wr
dmis = DataMisfit.l2_DataMisfit(survey)
dmis.Wd = 1./wd
#
# opt = Optimization.ProjectedGNCG(maxIter=20,lower=-2.,upper=2., maxIterCG= 10, tolCG = 1e-4)
# invProb = InvProblem.BaseInvProblem(dmis, reg, opt)
# invProb.curModel = m0
#
# beta = Directives.BetaSchedule(coolingFactor=2, coolingRate=1)
# target = Directives.TargetMisfit()
#
opt = Optimization.ProjectedGNCG(maxIter=30,lower=-2.,upper=2., maxIterCG= 20, tolCG = 1e-4)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt)
invProb.curModel = m0
beta = Directives.BetaSchedule(coolingFactor=2, coolingRate=1)
target = Directives.TargetMisfit()
betaest = Directives.BetaEstimate_ByEig()
# inv = Inversion.BaseInversion(invProb, directiveList=[beta, betaest, target])
#
#
# mrec = inv.run(m0)
# ml2 = mrec
# print "Final misfit:" + str(invProb.dmisfit.eval(mrec))
#
# # Switch regularization to sparse
# phim = invProb.phi_m_last
# phid = invProb.phi_d
inv = Inversion.BaseInversion(invProb, directiveList=[beta, betaest, target])
mrec = inv.run(m0)
ml2 = mrec
print "Final misfit:" + str(invProb.dmisfit.eval(mrec))
# Switch regularization to sparse
phim = invProb.phi_m_last
phid = invProb.phi_d
reg = Regularization.Sparse(mesh)
reg.mref = mref
reg.cell_weights = wr
#==============================================================================
# fig, axes = plt.subplots(1,2,figsize=(12*1.2,4*1.2))
# dmdx = reg.mesh.cellDiffxStencil * mrec
# plt.plot(np.sort(dmdx))
#==============================================================================
#reg.recModel = mrec
reg.wght = np.ones(mesh.nC)
reg.mref = np.zeros(mesh.nC)
eps_p = 5e-2
eps_q = 5e-2
norms = [0., 0., 2., 2.]
reg.eps_p = 5e-2
reg.eps_q = 1e-2
reg.norms = [0., 0., 2., 2.]
reg.wght = wr
opt = Optimization.ProjectedGNCG(maxIter=100 ,lower=-2.,upper=2., maxIterLS = 20, maxIterCG= 10, tolCG = 1e-3)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt)
update_Jacobi = Directives.Update_lin_PreCond()
IRLS = Directives.Update_IRLS( norms=norms, eps_p=eps_p, eps_q=eps_q)
opt = Optimization.ProjectedGNCG(maxIter=10 ,lower=-2.,upper=2., maxIterLS = 20, maxIterCG= 20, tolCG = 1e-3)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta = invProb.beta*2.)
beta = Directives.BetaSchedule(coolingFactor=1, coolingRate=1)
#betaest = Directives.BetaEstimate_ByEig()
target = Directives.TargetMisfit()
IRLS =Directives.Update_IRLS( phi_m_last = phim, phi_d_last = phid )
inv = Inversion.BaseInversion(invProb, directiveList=[IRLS,betaest,update_Jacobi])
inv = Inversion.BaseInversion(invProb, directiveList=[beta,IRLS])
m0 = mrec
# Run inversion
mrec = inv.run(m0)
@@ -109,7 +117,7 @@ def run(N=100, plotIt=True):
axes[0].set_title('Columns of matrix G')
axes[1].plot(mesh.vectorCCx, mtrue, 'b-')
axes[1].plot(mesh.vectorCCx, reg.l2model, 'r-')
axes[1].plot(mesh.vectorCCx, ml2, 'r-')
#axes[1].legend(('True Model', 'Recovered Model'))
axes[1].set_ylim(-1.0,1.25)
+24 -30
View File
@@ -1,11 +1,9 @@
import SimPEG as simpeg
import numpy as np
from SimPEG import NSEM
import SimPEG.MT as MT
from scipy.constants import mu_0
import matplotlib.pyplot as plt
np.random.seed(1983)
def run(plotIt=True):
"""
MT: 1D: Inversion
@@ -19,13 +17,13 @@ def run(plotIt=True):
## Setup the forward modeling
# Setting up 1D mesh and conductivity models to forward model data.
# Frequency
nFreq = 26
freqs = np.logspace(2,-3,nFreq)
nFreq = 31
freqs = np.logspace(3,-3,nFreq)
# Set mesh parameters
ct = 10
air = simpeg.Utils.meshTensor([(ct,25,1.4)])
ct = 20
air = simpeg.Utils.meshTensor([(ct,16,1.4)])
core = np.concatenate( ( np.kron(simpeg.Utils.meshTensor([(ct,10,-1.3)]),np.ones((5,))) , simpeg.Utils.meshTensor([(ct,5)]) ) )
bot = simpeg.Utils.meshTensor([(core[0],25,-1.4)])
bot = simpeg.Utils.meshTensor([(core[0],10,-1.4)])
x0 = -np.array([np.sum(np.concatenate((core,bot)))])
# Make the model
m1d = simpeg.Mesh.TensorMesh([np.concatenate((bot,core,air))], x0=x0)
@@ -35,7 +33,7 @@ def run(plotIt=True):
layer1 = (m1d.vectorCCx<-500.) & (m1d.vectorCCx>=-800.)
layer2 = (m1d.vectorCCx<-3500.) & (m1d.vectorCCx>=-5000.)
# Set the conductivity values
sig_half = 1e-2
sig_half = 2e-3
sig_air = 1e-8
sig_layer1 = .2
sig_layer2 = .2
@@ -52,38 +50,38 @@ def run(plotIt=True):
m_0 = np.log(sigma_0[active])
# Set the mapping
actMap = simpeg.Maps.InjectActiveCells(m1d, active, np.log(1e-8), nC=m1d.nCx)
actMap = simpeg.Maps.ActiveCells(m1d, active, np.log(1e-8), nC=m1d.nCx)
mappingExpAct = simpeg.Maps.ExpMap(m1d) * actMap
## Setup the layout of the survey, set the sources and the connected receivers
# Receivers
rxList = []
for rxType in ['z1dr','z1di']:
rxList.append(NSEM.Rx(simpeg.mkvc(np.array([-0.5]),2).T,rxType))
rxList.append(MT.Rx(simpeg.mkvc(np.array([0.0]),2).T,rxType))
# Source list
srcList =[]
for freq in freqs:
srcList.append(NSEM.SrcNSEM.polxy_1Dprimary(rxList,freq))
srcList.append(MT.SrcMT.polxy_1Dprimary(rxList,freq))
# Make the survey
survey = NSEM.Survey(srcList)
survey = MT.Survey(srcList)
survey.mtrue = m_true
## Set the problem
problem = NSEM.Problem1D_ePrimSec(m1d,sigmaPrimary=sigma_0,mapping=mappingExpAct)
problem = MT.Problem1D.eForm_psField(m1d,sigmaPrimary=sigma_0,mapping=mappingExpAct)
problem.pair(survey)
## Forward model data
# Project the data
survey.dtrue = survey.dpred(m_true)
survey.dobs = survey.dtrue + 0.01*abs(survey.dtrue)*np.random.randn(*survey.dtrue.shape)
survey.dobs = survey.dtrue + 0.025*abs(survey.dtrue)*np.random.randn(*survey.dtrue.shape)
if plotIt:
fig = NSEM.Utils.dataUtils.plotMT1DModelData(problem,[])
fig = MT.Utils.dataUtils.plotMT1DModelData(problem)
fig.suptitle('Target - smooth true')
# Assign uncertainties
std = 0.025 # 5% std
std = 0.05 # 5% std
survey.std = np.abs(survey.dobs*std)
# Assign the data weight
Wd = 1./survey.std
@@ -92,33 +90,30 @@ def run(plotIt=True):
# Define a counter
C = simpeg.Utils.Counter()
# Set the optimization
opt = simpeg.Optimization.ProjectedGNCG(maxIter = 25)
opt = simpeg.Optimization.InexactGaussNewton(maxIter = 30)
opt.counter = C
opt.lower = np.log(1e-4)
opt.upper = np.log(5)
opt.LSshorten = 0.1
opt.LSshorten = 0.5
opt.remember('xc')
# Data misfit
dmis = simpeg.DataMisfit.l2_DataMisfit(survey)
dmis.Wd = Wd
# Regularization - with a regularization mesh
regMesh = simpeg.Mesh.TensorMesh([m1d.hx[active]],m1d.x0)
regMesh = simpeg.Mesh.TensorMesh([m1d.hx[problem.mapping.sigmaMap.maps[-1].indActive]],m1d.x0)
reg = simpeg.Regularization.Tikhonov(regMesh)
reg.mrefInSmooth = True
reg.alpha_s = 1e-1
reg.alpha_s = 1e-7
reg.alpha_x = 1.
# Inversion problem
invProb = simpeg.InvProblem.BaseInvProblem(dmis, reg, opt)
invProb.counter = C
# Beta cooling
beta = simpeg.Directives.BetaSchedule()
beta.coolingRate = 4.
beta.coolingFactor = 4.
betaest = simpeg.Directives.BetaEstimate_ByEig(beta0_ratio=1.)
betaest.beta0 = 1.
beta.coolingRate = 4
betaest = simpeg.Directives.BetaEstimate_ByEig(beta0_ratio=0.75)
targmis = simpeg.Directives.TargetMisfit()
targmis.target = survey.nD
saveModel = simpeg.Directives.SaveModelEveryIteration()
saveModel.fileName = 'Inversion_TargMisEqnD_smoothTrue'
# Create an inversion object
inv = simpeg.Inversion.BaseInversion(invProb, directiveList=[beta,betaest,targmis])
@@ -126,9 +121,8 @@ def run(plotIt=True):
mopt = inv.run(m_0)
if plotIt:
fig = NSEM.Utils.dataUtils.plotMT1DModelData(problem,[mopt])
fig = MT.Utils.dataUtils.plotMT1DModelData(problem,[mopt])
fig.suptitle('Target - smooth true')
fig.axes[0].set_ylim([-10000,500])
plt.show()
if __name__ == '__main__':
@@ -1,428 +0,0 @@
from scipy.constants import epsilon_0, mu_0
import matplotlib.pyplot as plt
import numpy as np
from ipywidgets import *
from SimPEG.EM.Utils import k, omega
"""
MT1D: n layered earth problem
*****************************
Author: Thibaut Astic
Contact: thast@eos.ubc.ca
Date: January 2016
This code compute the analytic response of a n-layered Earth to a plane wave (Magneto-Tellurics).
We start by looking at Maxwell's equations in the electric
field \\\(\\\mathbf{E}\\) and the magnetic flux
\\\(\\\mathbf{H}\\) to write the wave equations
\\(\\ \nabla ^2 \mathbf{E_x} + k^2 \mathbf{E_x} = 0 \\) &
\\(\\ \nabla ^2 \mathbf{H_y} + k^2 \mathbf{H_y} = 0 \\)
Then solving the equations in each layer "j" between z_{j-1} and z_j in the form of
\\(\\ E_{x,j} (z) = U_j e^{i k (z-z_{j-1})} + D_j e^{-i k (z-z_{j-1})} \\)
\\(\\ H_{y,j} (z) = \frac{1}{Z_j} (D_j e^{-i k (z-z_{j-1})} - U_j e^{i k (z-z_{j-1})}) \\)
With U and D the Up and Down components of the E-field.
The iteration from one layer to another is ensure by:
\\(\\ \left(\begin{matrix} E_{x,j} \\ H_{y,j} \end{matrix} \right) =
P_j T_j P^{-1}_J \left(\begin{matrix} E_{x,j+1} \\ H_{y,j+1} \end{matrix} \right) \\)
And the Boundary Condition is set for the E-field in the last layer, with no Up component (=0)
and only a down component (=1 then normalized by the highest amplitude to ensure numeric stability)
The layer 0 is assumed to be the air layer.
"""
#Define a frquency range for a survey
frange = lambda minfreq, maxfreq, step: np.logspace(minfreq,maxfreq,num = step, base = 10.)
#Functions to create random physical Perties for a n-layered earth
thick = lambda minthick, maxthick, nlayer: np.append(np.array([1.2*10.**5]),
np.ndarray.round(minthick + (maxthick-minthick)* np.random.rand(nlayer-1,1)
,decimals =1))
sig = lambda minsig, maxsig, nlayer: np.append(np.array([0.]),
np.ndarray.round(10.**minsig + (10.**maxsig-10.**minsig)* np.random.rand(nlayer,1)
,decimals=3))
mu = lambda minmu, maxmu, nlayer: np.append(np.array([1.]),
np.ndarray.round(minmu + (maxmu-minmu)* np.random.rand(nlayer,1)
,decimals=1))
eps = lambda mineps, maxeps, nlayer: np.append(np.array([1.]),
np.ndarray.round(mineps + (maxeps-mineps)* np.random.rand(nlayer,1)
,decimals=1))
#Evaluate Impedance Z of a layer
ImpZ = lambda f, mu, k: omega(f)*mu*mu_0/k
#Complex Cole-Cole Conductivity - EM utils
PCC= lambda siginf,m,t,c,f: siginf*(1.-(m/(1.+(1j*omega(f)*t)**c)))
#Converted thickness array into top of layer array
top = lambda thick: np.cumsum(thick)
#Propagation Matrix and theirs inverses
#matrix T for transition of Up and Down components accross a layer
T = lambda h,k: np.matrix([[np.exp(1j*k*h),0.],[0.,np.exp(-1j*k*h)]],dtype='complex_')
Tinv = lambda h,k: np.matrix([[np.exp(-1j*k*h),0.],[0.,np.exp(1j*k*h)]],dtype='complex_')
#transition of Up and Down components accross a layer
UD_Z = lambda UD,z,zj,k : T((z-zj),k)*UD
#matrix P relating Up and Down components with E and H fields
P = lambda z: np.matrix([[1.,1,],[-1./z,1./z]],dtype='complex_')
Pinv = lambda z: np.matrix([[1.,-z],[1.,z]],dtype='complex_')/2.
#Time Variation of E and H
E_ZT = lambda U,D,f,t : np.exp(1j*omega(f)*t)*(U+D)
H_ZT = lambda U,D,Z,f,t : (1./Z)*np.exp(1j*omega(f)*t)*(D-U)
#Plot the configuration of the problem
def PlotConfiguration(thick,sig,eps,mu,ax,widthg,z):
topn = top(thick)
widthn = np.arange(-widthg,widthg+widthg/10.,widthg/10.)
ax.set_ylim([z.min(),z.max()])
ax.set_xlim([-widthg,widthg])
ax.set_ylabel("Depth (m)", fontsize=16.)
ax.yaxis.tick_right()
ax.yaxis.set_label_position("right")
#define filling for the different layers
hatches=['/' , '+', 'x', '|' , '\\', '-' , 'o' , 'O' , '.' , '*' ]
#Write the physical properties of air
ax.annotate(("Air, $\sigma$ =%1.0f mS/m")%(sig[0]*10**(3)),
xy=(-widthg/2., -np.abs(z.max())/2.), xycoords='data',
xytext=(-widthg/2., -np.abs(z.max())/2.), textcoords='data',
fontsize=14.)
ax.annotate(("$\epsilon_r$= %1i")%(eps[0]),
xy=(-widthg/2., -np.abs(z.max())/3.), xycoords='data',
xytext=(-widthg/2., -np.abs(z.max())/3.), textcoords='data',
fontsize=14.)
ax.annotate(("$\mu_r$= %1i")%(mu[0]),
xy=(-widthg/2., -np.abs(z.max())/3.), xycoords='data',
xytext=(0, -np.abs(z.max())/3.), textcoords='data',
fontsize=14.)
#Write the physical properties of the differents layers up to the (n-1)-th and fill it with pattern
for i in range(1,len(topn)-1,1):
if topn[i] == topn[i+1]:
pass
else:
ax.annotate(("$\sigma$ =%3.3f mS/m")%(sig[i]*10**(3)),
xy=(0., (2.*topn[i]+topn[i+1])/3), xycoords='data',
xytext=(0., (2.*topn[i]+topn[i+1])/3), textcoords='data',
fontsize=14.)
ax.annotate(("$\epsilon_r$= %1i")%(eps[i]),
xy=(-widthg/1.1, (2.*topn[i]+topn[i+1])/3), xycoords='data',
xytext=(-widthg/1.1, (2.*topn[i]+topn[i+1])/3), textcoords='data',
fontsize=14.)
ax.annotate(("$\mu_r$= %1.2f")%(mu[i]),
xy=(-widthg/2., (2.*topn[i]+topn[i+1])/3), xycoords='data',
xytext=(-widthg/2., (2.*topn[i]+topn[i+1])/3), textcoords='data',
fontsize=14.)
ax.plot(widthn,topn[i]*np.ones_like(widthn),color='black')
ax.fill_between(widthn,topn[i],topn[i+1],alpha=0.3,color="none",edgecolor='black', hatch=hatches[(i-1)%10])
#Write the physical properties of the n-th layer and fill it with pattern
ax.plot(widthn,topn[-1]*np.ones_like(widthn),color='black')
ax.fill_between(widthn,topn[-1],z.max(),alpha=0.3,color="none",edgecolor='black', hatch=hatches[(len(topn)-2)%10])
ax.annotate(("$\sigma$ =%3.3f mS/m")%(sig[-1]*10**(3)),
xy=(0., (2.*topn[-1]+z.max())/3), xycoords='data',
xytext=(0., (2.*topn[-1]+z.max())/3), textcoords='data',
fontsize=14.)
ax.annotate(("$\epsilon_r$= %1i")%(eps[-1]),
xy=(-widthg/1.1, (2.*topn[-1]+z.max())/3), xycoords='data',
xytext=(-widthg/1.1, (2.*topn[-1]+z.max())/3), textcoords='data',
fontsize=14.)
ax.annotate(("$\mu_r$= %1.2f")%(mu[-1]),
xy=(-widthg/2., (2.*topn[-1]+z.max())/3), xycoords='data',
xytext=(-widthg/2., (2.*topn[-1]+z.max())/3), textcoords='data',
fontsize=14.)
#plot Trees!
ax.annotate("",
xy=(widthg/2., -1.*z.max()/5.), xycoords='data',
xytext=(widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.2,head_length=1.2',color='green',linewidth=2.)
)
ax.annotate("",
xy=(widthg/2., -3./4.*z.max()/5.), xycoords='data',
xytext=(widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.4,head_length=1.4',color='green',linewidth=2.)
)
ax.annotate("",
xy=(widthg/2., -1./2.*z.max()/5.), xycoords='data',
xytext=(widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.6,head_length=1.6',color='green',linewidth=2.)
)
ax.annotate("",
xy=(1.2*widthg/2., -1.*z.max()/5.), xycoords='data',
xytext=(1.2*widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.2,head_length=1.2',color='green',linewidth=2.)
)
ax.annotate("",
xy=(1.2*widthg/2., -3./4.*z.max()/5.), xycoords='data',
xytext=(1.2*widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.4,head_length=1.4',color='green',linewidth=2.)
)
ax.annotate("",
xy=(1.2*widthg/2., -1./2.*z.max()/5.), xycoords='data',
xytext=(1.2*widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.6,head_length=1.6',color='green',linewidth=2.)
)
ax.annotate("",
xy=(1.5*widthg/2., -1.*z.max()/5.), xycoords='data',
xytext=(1.5*widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.2,head_length=1.2',color='green',linewidth=2.)
)
ax.annotate("",
xy=(1.5*widthg/2., -3./4.*z.max()/5.), xycoords='data',
xytext=(1.5*widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.4,head_length=1.4',color='green',linewidth=2.)
)
ax.annotate("",
xy=(1.5*widthg/2., -1./2.*z.max()/5.), xycoords='data',
xytext=(1.5*widthg/2., 0.), textcoords='data',
arrowprops=dict(arrowstyle='->, head_width=1.6,head_length=1.6',color='green',linewidth=2.)
)
ax.invert_yaxis()
return ax
#Propagate Up and Down component for a certain frequency & evaluate E and H field
def Propagate(f,H,sig,chg,taux,c,mu,eps,n):
sigcm = np.zeros_like(sig,dtype='complex_')
for j in range(1,len(sig)):
sigcm[j]=PCC(sig[j],chg[j],taux[j],c[j],f)
K = k(f, sigcm, mu, eps)
Z = ImpZ(f,mu,K)
EH = np.matrix(np.zeros((2,n+1),dtype = 'complex_'),dtype = 'complex_')
UD = np.matrix(np.zeros((2,n+1),dtype = 'complex_'),dtype = 'complex_')
UD[1,-1] = 1.
for i in range(-2,-(n+2),-1):
UD[:,i] = Tinv(H[i+1],K[i])*Pinv(Z[i])*P(Z[i+1])*UD[:,i+1]
UD = UD/((np.abs(UD[0,:]+UD[1,:])).max())
for j in range(0,n+1):
EH[:,j] = np.matrix([[1.,1,],[-1./Z[j],1./Z[j]]])*UD[:,j]
return UD, EH, Z ,K
#Evaluate the apparent resistivity and phase for a frequency range
def appres(F,H,sig,chg,taux,c,mu,eps,n):
Res = np.zeros_like(F)
Phase = np.zeros_like(F)
App_ImpZ= np.zeros_like(F,dtype='complex_')
for i in range(0,len(F)):
UD,EH,Z ,K = Propagate(F[i],H,sig,chg,taux,c,mu,eps,n)
App_ImpZ[i] = EH[0,1]/EH[1,1]
Res[i] = np.abs(App_ImpZ[i])**2./(mu_0*omega(F[i]))
Phase[i] = np.angle(App_ImpZ[i], deg = True)
return Res,Phase
#Evaluate Up, Down components, E and H field, for a frequency range,
#a discretized depth range and a time range (use to calculate envelope)
def calculateEHzt(F,H,sig,chg,taux,c,mu,eps,n,zsample,tsample):
topc = top(H)
layer = np.zeros(len(zsample),dtype=np.int)-1
Exzt = np.matrix(np.zeros((len(zsample),len(tsample)),dtype = 'complex_'),dtype = 'complex_')
Hyzt = np.matrix(np.zeros((len(zsample),len(tsample)),dtype = 'complex_'),dtype = 'complex_')
Uz = np.matrix(np.zeros((len(zsample),len(tsample)),dtype = 'complex_'),dtype = 'complex_')
Dz = np.matrix(np.zeros((len(zsample),len(tsample)),dtype = 'complex_'),dtype = 'complex_')
UDaux = np.matrix(np.zeros((2,len(zsample)),dtype = 'complex_'),dtype = 'complex_')
for i in range(0,n+1,1):
layer = layer+(zsample>=topc[i])*1
for j in range(0,len(F)):
UD,EH,Z ,K = Propagate(F[j],H,sig,chg,taux,c,mu,eps,n)
for p in range(0,len(zsample)):
UDaux[:,p] = UD_Z(UD[:,layer[p]],zsample[p],topc[layer[p]],K[layer[p]])
for q in range(0,len(tsample)):
Exzt[p,q] = Exzt[p,q] + E_ZT(UDaux[0,p],UDaux[1,p],F[j],tsample[q])/len(F)
Hyzt[p,q] = Hyzt[p,q] + H_ZT(UDaux[0,p],UDaux[1,p],Z[layer[p]],F[j],tsample[q])/len(F)
Uz[p,q] = Uz[p,q] + UDaux[0,p]*np.exp(1j*omega(F[j])*tsample[q])/len(F)
Dz[p,q] = Dz[p,q] + UDaux[1,p]*np.exp(1j*omega(F[j])*tsample[q])/len(F)
return Exzt,Hyzt,Uz,Dz,UDaux,layer
#Function to Plot Apparent Resistivity and Phase
def PlotAppRes(F,H,sig,chg,taux,c,mu,eps,n,fenvelope,PlotEnvelope):
Res, Phase = appres(F,H,sig,chg,taux,c,mu,eps,n)
fig,ax = plt.subplots(1,2,figsize=(16,10))
ax[0].scatter(Res,F,color='black')
ax[0].set_xscale('Log')
ax[0].set_yscale('Log')
ax[0].set_xlim([10.**(np.log10(Res.min())-1.),10.**(np.log10(Res.max())+1.)])
ax[0].set_ylim([F.min(),F.max()])
ax[0].set_xlabel('Apparent Resistivity (Ohm*m)',fontsize=16.,color="black")
ax[0].set_ylabel('Frequency (Hz)',fontsize=16.)
ax[0].grid(which='major')
ax0 = ax[0].twiny()
ax0.set_xlim([0.,90.])
ax0.set_ylim([F.min(),F.max()])
ax0.scatter(Phase,F,color='purple')
ax0.set_xlabel('Phase (Degrees)',fontsize=16.,color="purple")
zc=np.arange(-(H[1:].max()+10)*n,(H[1:].max()+10)*n,10.)
ax[0].tick_params(labelsize=16)
ax[1].tick_params(labelsize=16)
ax0.tick_params(labelsize=16)
if PlotEnvelope:
widthn=np.logspace(np.log10(Res.min())-1., np.log10(Res.max())+1., num=100, endpoint=True, base=10.0)
fenvelope1n=np.ones(100)*fenvelope
ax[0].plot(widthn,fenvelope1n,linestyle='dashed',color='black')
tc=np.arange(0.,1./fenvelope,0.01/(fenvelope))
Exzt,Hyzt,Uz,Dz,UDaux,layer = calculateEHzt(np.array([fenvelope]),H,sig,chg,taux,c,mu,eps,n,zc,tc)
ax1=ax[1].twiny()
ax[1].tick_params(labelsize=16)
ax1.tick_params(labelsize=16)
ax[1].set_xlabel('Amplitude Electric Field E (V/m)',color='blue',fontsize=16)
ax1.set_xlabel('Amplitude Magnetic Field H (A/m)',color='red',fontsize=16)
ax[1].fill_betweenx(zc,np.squeeze(np.asarray(np.real(Exzt.min(axis=1)))),
np.squeeze(np.asarray(np.real(Exzt.max(axis=1)))),
color='blue', alpha=0.1)
ax1.fill_betweenx(zc,np.squeeze(np.asarray(np.real(Hyzt.min(axis=1)))),
np.squeeze(np.asarray(np.real(Hyzt.max(axis=1)))),
color='red', alpha=0.1)
ax[1] = PlotConfiguration(H,sig,eps,mu,ax[1],(1.5*np.abs(Exzt).max()),zc)
ax1.set_xlim([-1.5*np.abs(Hyzt).max(),1.5*np.abs(Hyzt).max()])
ax1.set_xlim([-1.5*np.abs(Hyzt).max(),1.5*np.abs(Hyzt).max()])
else:
print 'No envelop (if True, might be slow)'
ax[1] = PlotConfiguration(H,sig,eps,mu,ax[1],1.,zc)
ax[1].get_xaxis().set_ticks([])
plt.show()
#Interactive MT for Notebook
def PlotAppRes3LayersInteract(h1,h2,sigl1,sigl2,sigl3,mul1,mul2,mul3,epsl1,epsl2,epsl3,PlotEnvelope,F_Envelope):
frangn=frange(-5,5,100.)
sig3= np.array([0.,0.001,0.1, 0.001])
thick3 = np.array([120000.,50.,50.])
eps3=np.array([1.,1.,1.,1])
mu3=np.array([1.,1.,1.,1])
chg3=np.array([0.,0.1,0.,0.2])
chg3_0=np.array([0.,0.1,0.,0.])
taux3=np.array([0.,0.1,0.,0.1])
c3=np.array([1.,1.,1.,1.])
sig3[1]=sigl1
sig3[1]=10.**sig3[1]
sig3[2]=sigl2
sig3[2]=10.**sig3[2]
sig3[3]=sigl3
sig3[3]=10.**sig3[3]
mu3[1]=mul1
mu3[2]=mul2
mu3[3]=mul3
eps3[1]=epsl1
eps3[2]=epsl2
eps3[3]=epsl3
thick3[1]=h1
thick3[2]=h2
PlotAppRes(frangn,thick3,sig3,chg3_0,taux3,c3,mu3,eps3,3,F_Envelope,PlotEnvelope)
def run(n=3,plotIt=True):
# something to make a plot
F = frange(-5.,5.,20)
H = thick(50.,100.,n)
sign = sig(-5.,0.,n)
mun = mu(1.,2.,n)
epsn = eps(1.,9.,n)
chg = np.zeros_like(sign)
taux = np.zeros_like(sign)
c = np.zeros_like(sign)
Res, Phase = appres(F,H,sign,chg,taux,c,mun,epsn,n)
if plotIt:
PlotAppRes(F, H, sign, chg, taux, c, mun, epsn, n, fenvelope=1000., PlotEnvelope=True)
return Res, Phase
if __name__ == '__main__':
run()
+6 -6
View File
@@ -2,7 +2,7 @@
# Import
import SimPEG as simpeg
from SimPEG import NSEM
from SimPEG import MT
import numpy as np
try:
from pymatsolver import MumpsSolver as Solver
@@ -37,16 +37,16 @@ def run(plotIt=True, nFreq=1):
for loc in rx_loc:
# NOTE: loc has to be a (1,3) np.ndarray otherwise errors accure
for rxType in ['zxxr','zxxi','zxyr','zxyi','zyxr','zyxi','zyyr','zyyi','tzxr','tzxi','tzyr','tzyi']:
rxList.append(NSEM.Rx(simpeg.mkvc(loc,2).T,rxType))
rxList.append(MT.Rx(simpeg.mkvc(loc,2).T,rxType))
# Source list
srcList =[]
for freq in np.logspace(3,-3,nFreq):
srcList.append(NSEM.SrcNSEM.polxy_1Dprimary(rxList,freq))
srcList.append(MT.SrcMT.polxy_1Dprimary(rxList,freq))
# Survey MT
survey = NSEM.Survey(srcList)
survey = MT.Survey(srcList)
## Setup the problem object
problem = NSEM.Problem3D_ePrimSec(M, sigmaPrimary=sigBG)
problem = MT.Problem3D.eForm_ps(M, sigmaPrimary=sigBG)
problem.pair(survey)
problem.Solver = Solver
@@ -55,7 +55,7 @@ def run(plotIt=True, nFreq=1):
dataVec = survey.eval(fields)
# Make the data
mtData = NSEM.Data(survey,dataVec)
mtData = MT.Data(survey,dataVec)
# Add plots
if plotIt:
pass
-41
View File
@@ -1,41 +0,0 @@
from SimPEG import *
from SimPEG.Utils import surface2ind_topo
def run(plotIt=False, nx = 5, ny = 5):
"""
Here we show how to use :code:`Utils.surface2ind_topo` to identify cells below
a topographic surface.
"""
mesh = Mesh.TensorMesh([nx,ny], x0='CC') # 2D mesh
xtopo = np.linspace(mesh.gridN[:,0].min(), mesh.gridN[:,0].max())
topo = 0.4*np.sin(xtopo*5) # define a topographic surface
Topo = np.hstack([Utils.mkvc(xtopo,2),Utils.mkvc(topo,2)]) #make it an array
indcc = surface2ind_topo(mesh, Topo,'CC')
if plotIt:
from matplotlib.pylab import plt
from scipy.interpolate import interp1d
fig, ax = plt.subplots(1,1,figsize=(6,6))
mesh.plotGrid(ax=ax, nodes=True, centers=True)
ax.plot(xtopo,topo,'k',linewidth=1)
# ax.plot(mesh.vectorNx, interp1d(xtopo,topo)(mesh.vectorNx),'--k',linewidth=3)
ax.plot(mesh.vectorCCx, interp1d(xtopo,topo)(mesh.vectorCCx),'--k',linewidth=3)
aveN2CC = Utils.sdiag(mesh.aveN2CC.T.sum(1))*mesh.aveN2CC.T
a = aveN2CC * indcc
a[a > 0] = 1.
a[a < 0.25] = np.nan
a = a.reshape(mesh.vnN, order='F')
masked_array = np.ma.array(a, mask=np.isnan(a))
ax.pcolor(mesh.vectorNx,mesh.vectorNy,masked_array.T, cmap = plt.cm.gray,alpha=0.2)
plt.show()
if __name__ == '__main__':
run(plotIt=True)
+15 -17
View File
@@ -1,29 +1,27 @@
# Run this file to add imports.
##### AUTOIMPORTS #####
import EM_FDEM_1D_Inversion
import Mesh_QuadTree_Creation
import EM_TDEM_1D_Inversion
import Mesh_QuadTree_FaceDiv
import Mesh_Tensor_Creation
import FLOW_Richards_1D_Celia1990
import DC_Analytic_Dipole
import DC_Forward_PseudoSection
import Mesh_Operators_CahnHilliard
import Mesh_Basic_Types
import EM_FDEM_1D_Inversion
import EM_FDEM_Analytic_MagDipoleWholespace
import EM_Schenkel_Morrison_Casing
import EM_TDEM_1D_Inversion
import FLOW_Richards_1D_Celia1990
import Forward_BasicDirectCurrent
import Inversion_IRLS
import Inversion_Linear
import EM_Schenkel_Morrison_Casing
import MT_3D_Foward
import Mesh_Basic_ForwardDC
import MT_1D_ForwardAndInversion
import Utils_surface2ind_topo
import MT_1D_analytic_nlayer_Earth
import EM_FDEM_Analytic_MagDipoleWholespace
import Mesh_Basic_PlotImage
import DC_Analytic_Dipole
import Mesh_Basic_Types
import Mesh_Operators_CahnHilliard
import Mesh_QuadTree_Creation
import Mesh_QuadTree_FaceDiv
import Mesh_QuadTree_HangingNodes
import Mesh_Tensor_Creation
import MT_1D_ForwardAndInversion
import MT_3D_Foward
__examples__ = ["EM_FDEM_1D_Inversion", "Mesh_QuadTree_Creation", "EM_TDEM_1D_Inversion", "Mesh_QuadTree_FaceDiv", "Mesh_Tensor_Creation", "FLOW_Richards_1D_Celia1990", "DC_Forward_PseudoSection", "Mesh_Operators_CahnHilliard", "Mesh_Basic_Types", "Inversion_IRLS", "Inversion_Linear", "EM_Schenkel_Morrison_Casing", "MT_3D_Foward", "Mesh_Basic_ForwardDC", "MT_1D_ForwardAndInversion", "Utils_surface2ind_topo", "MT_1D_analytic_nlayer_Earth", "EM_FDEM_Analytic_MagDipoleWholespace", "Mesh_Basic_PlotImage", "DC_Analytic_Dipole", "Mesh_QuadTree_HangingNodes"]
__examples__ = ["DC_Analytic_Dipole", "DC_Forward_PseudoSection", "EM_FDEM_1D_Inversion", "EM_FDEM_Analytic_MagDipoleWholespace", "EM_Schenkel_Morrison_Casing", "EM_TDEM_1D_Inversion", "FLOW_Richards_1D_Celia1990", "Forward_BasicDirectCurrent", "Inversion_IRLS", "Inversion_Linear", "Mesh_Basic_PlotImage", "Mesh_Basic_Types", "Mesh_Operators_CahnHilliard", "Mesh_QuadTree_Creation", "Mesh_QuadTree_FaceDiv", "Mesh_QuadTree_HangingNodes", "Mesh_Tensor_Creation", "MT_1D_ForwardAndInversion", "MT_3D_Foward"]
##### AUTOIMPORTS #####
+132
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@@ -0,0 +1,132 @@
from SimPEG import SolverLU as SimpegSolver, PropMaps, Utils, mkvc, sp, np
from SimPEG.EM.FDEM.FDEM import BaseFDEMProblem
from SurveyMT import Survey, Data
from FieldsMT import BaseMTFields
class BaseMTProblem(BaseFDEMProblem):
"""
Base class for all Natural source problems.
"""
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
Utils.setKwargs(self, **kwargs)
# Set the default pairs of the problem
surveyPair = Survey
dataPair = Data
fieldsPair = BaseMTFields
# Set the solver
Solver = SimpegSolver
solverOpts = {}
verbose = False
# Notes:
# Use the forward and devs from BaseFDEMProblem
# Might need to add more stuff here.
## NEED to clean up the Jvec and Jtvec to use Zero and Identities for None components.
def Jvec(self, m, v, f=None):
"""
Function to calculate the data sensitivities dD/dm times a vector.
:param numpy.ndarray m (nC, 1) - conductive model
:param numpy.ndarray v (nC, 1) - random vector
:param MTfields object (optional) - MT fields object, if not given it is calculated
:rtype: MTdata object
:return: Data sensitivities wrt m
"""
# Calculate the fields
if f is None:
f= self.fields(m)
# Set current model
self.curModel = m
# Initiate the Jv object
Jv = self.dataPair(self.survey)
# Loop all the frequenies
for freq in self.survey.freqs:
dA_du = self.getA(freq) #
dA_duI = self.Solver(dA_du, **self.solverOpts)
for src in self.survey.getSrcByFreq(freq):
# We need fDeriv_m = df/du*du/dm + df/dm
# Construct du/dm, it requires a solve
# NOTE: need to account for the 2 polarizations in the derivatives.
f_src = f[src,:]
# dA_dm and dRHS_dm should be of size nE,2, so that we can multiply by dA_duI. The 2 columns are each of the polarizations.
dA_dm = self.getADeriv_m(freq, f_src, v) # Size: nE,2 (u_px,u_py) in the columns.
dRHS_dm = self.getRHSDeriv_m(freq, v) # Size: nE,2 (u_px,u_py) in the columns.
if dRHS_dm is None:
du_dm = dA_duI * ( -dA_dm )
else:
du_dm = dA_duI * ( -dA_dm + dRHS_dm )
# Calculate the projection derivatives
for rx in src.rxList:
# Get the projection derivative
# v should be of size 2*nE (for 2 polarizations)
PDeriv_u = lambda t: rx.evalDeriv(src, self.mesh, f, t) # wrt u, we don't have have PDeriv wrt m
Jv[src, rx] = PDeriv_u(mkvc(du_dm))
dA_duI.clean()
# Return the vectorized sensitivities
return mkvc(Jv)
def Jtvec(self, m, v, f=None):
"""
Function to calculate the transpose of the data sensitivities (dD/dm)^T times a vector.
:param numpy.ndarray m (nC, 1) - conductive model
:param numpy.ndarray v (nD, 1) - vector
:param MTfields object u (optional) - MT fields object, if not given it is calculated
:rtype: MTdata object
:return: Data sensitivities wrt m
"""
if f is None:
f = self.fields(m)
self.curModel = m
# Ensure v is a data object.
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
Jtv = np.zeros(m.size)
for freq in self.survey.freqs:
AT = self.getA(freq).T
ATinv = self.Solver(AT, **self.solverOpts)
for src in self.survey.getSrcByFreq(freq):
ftype = self._fieldType + 'Solution'
f_src = f[src, :]
for rx in src.rxList:
# Get the adjoint evalDeriv
# PTv needs to be nE,
PTv = rx.evalDeriv(src, self.mesh, f, mkvc(v[src, rx],2), adjoint=True) # wrt u, need possibility wrt m
# Get the
dA_duIT = ATinv * PTv
dA_dmT = self.getADeriv_m(freq, f_src, mkvc(dA_duIT), adjoint=True)
dRHS_dmT = self.getRHSDeriv_m(freq, mkvc(dA_duIT), adjoint=True)
# Make du_dmT
if dRHS_dmT is None:
du_dmT = -dA_dmT
else:
du_dmT = -dA_dmT + dRHS_dmT
# Select the correct component
# du_dmT needs to be of size nC,
real_or_imag = rx.projComp
if real_or_imag == 'real':
Jtv += du_dmT.real
elif real_or_imag == 'imag':
Jtv += -du_dmT.real
else:
raise Exception('Must be real or imag')
# Clean the factorization, clear memory.
ATinv.clean()
return Jtv
@@ -4,21 +4,18 @@ import sys
from numpy.lib import recfunctions as recFunc
from SimPEG.EM.Utils import omega
##############
### Fields ###
##############
class BaseNSEMFields(Problem.Fields):
"""Field Storage for a NSEM survey."""
class BaseMTFields(Problem.Fields):
"""Field Storage for a MT survey."""
knownFields = {}
dtype = complex
###########
# 1D Fields
###########
class Fields1D_ePrimSec(BaseNSEMFields):
class Fields1D_e(BaseMTFields):
"""
Fields storage for the 1D NSEM solution.
Fields storage for the 1D MT solution.
"""
knownFields = {'e_1dSolution':'F'}
aliasFields = {
@@ -31,119 +28,7 @@ class Fields1D_ePrimSec(BaseNSEMFields):
}
def __init__(self,mesh,survey,**kwargs):
BaseNSEMFields.__init__(self,mesh,survey,**kwargs)
def _ePrimary(self, eSolution, srcList):
ePrimary = np.zeros_like(eSolution)
for i, src in enumerate(srcList):
ep = src.ePrimary(self.survey.prob)
if ep is not None:
ePrimary[:,i] = ep[:,-1]
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, du_dm_v, adjoint = False):
return Utils.Identity()*du_dm_v
def _eDeriv_m(self, src, v, adjoint = False):
# assuming primary does not depend on the model
return Utils.Zero()
def _bPrimary(self, eSolution, srcList):
bPrimary = np.zeros([self.survey.mesh.nE,eSolution.shape[1]], dtype = complex)
for i, src in enumerate(srcList):
bp = src.bPrimary(self.survey.prob)
if bp is not None:
bPrimary[:,i] += bp[:,-1]
return bPrimary
def _bSecondary(self, eSolution, srcList):
C = self.mesh.nodalGrad
b = (C * eSolution)
for i, src in enumerate(srcList):
b[:,i] *= - 1./(1j*omega(src.freq))
# There is no magnetic source in the MT problem
# S_m, _ = src.eval(self.survey.prob)
# if S_m is not None:
# b[:,i] += 1./(1j*omega(src.freq)) * S_m
return b
def _b(self, eSolution, srcList):
return self._bPrimary(eSolution, srcList) + self._bSecondary(eSolution, srcList)
def _bSecondaryDeriv_u(self, src, v, adjoint = False):
C = self.mesh.nodalGrad
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):
# Doesn't depend on m
# _, S_eDeriv = src.evalDeriv(self.survey.prob, adjoint)
# S_eDeriv = S_eDeriv(v)
# if S_eDeriv is not None:
# return 1./(1j * omega(src.freq)) * S_eDeriv
return None
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)
def _fDeriv_u(self, src, v, adjoint=False):
"""
Derivative of the fields object wrt u.
:param NSEMsrc src: NSEM source
:param numpy.ndarray v: random vector of f_sol.size
This function stacks the fields derivatives appropriately
return a vector of size (nreEle+nrbEle)
"""
de_du = v #Utils.spdiag(np.ones((self.nF,)))
db_du = self._bDeriv_u(src, v, adjoint)
# Return the stack
# This doesn't work...
return np.vstack((de_du,db_du))
def _fDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the fields object wrt m.
This function stacks the fields derivatives appropriately
"""
return None
class Fields1D_eTotal(BaseNSEMFields):
"""
Fields storage for the 1D NSEM solution solved with for a total domain formulation.
Used in conjuction with Problem1D_eTotal.
"""
knownFields = {'e_1dSolution':'F'}
aliasFields = {
'e_1d' : ['e_1dSolution','F','_e'],
'e_1dPrimary' : ['e_1dSolution','F','_ePrimary'],
'e_1dSecondary' : ['e_1dSolution','F','_eSecondary'],
'b_1d' : ['e_1dSolution','E','_b'],
'b_1dPrimary' : ['e_1dSolution','E','_bPrimary'],
'b_1dSecondary' : ['e_1dSolution','E','_bSecondary']
}
def __init__(self,mesh,survey,**kwargs):
BaseNSEMFields.__init__(self,mesh,survey,**kwargs)
BaseMTFields.__init__(self,mesh,survey,**kwargs)
def _ePrimary(self, eSolution, srcList):
ePrimary = np.zeros_like(eSolution)
@@ -214,7 +99,7 @@ class Fields1D_eTotal(BaseNSEMFields):
"""
Derivative of the fields object wrt u.
:param NSEMsrc src: NSEM source
:param MTsrc src: MT source
:param numpy.ndarray v: random vector of f_sol.size
This function stacks the fields derivatives appropriately
@@ -235,18 +120,9 @@ class Fields1D_eTotal(BaseNSEMFields):
"""
return None
###########
# 2D Fields
###########
###########
# 3D Fields
###########
class Fields3D_ePrimSec(BaseNSEMFields):
class Fields3D_e(BaseMTFields):
"""
Fields storage for the 3D NSEM solution. Labels polarizations by px and py.
Fields storage for the 3D MT solution. Labels polarizations by px and py.
:param SimPEG object mesh: The solution mesh
:param SimPEG object survey: A survey object
@@ -271,7 +147,7 @@ class Fields3D_ePrimSec(BaseNSEMFields):
}
def __init__(self,mesh,survey,**kwargs):
BaseNSEMFields.__init__(self,mesh,survey,**kwargs)
BaseMTFields.__init__(self,mesh,survey,**kwargs)
def _e_pxPrimary(self, e_pxSolution, srcList):
e_pxPrimary = np.zeros_like(e_pxSolution)
@@ -352,7 +228,7 @@ class Fields3D_ePrimSec(BaseNSEMFields):
b = (C * e_pxSolution)
for i, src in enumerate(srcList):
b[:,i] *= - 1./(1j*omega(src.freq))
# There is no magnetic source in the NSEM problem
# There is no magnetic source in the MT problem
# S_m, _ = src.eval(self.survey.prob)
# if S_m is not None:
# b[:,i] += 1./(1j*omega(src.freq)) * S_m
@@ -363,7 +239,7 @@ class Fields3D_ePrimSec(BaseNSEMFields):
b = (C * e_pySolution)
for i, src in enumerate(srcList):
b[:,i] *= - 1./(1j*omega(src.freq))
# There is no magnetic source in the NSEM problem
# There is no magnetic source in the MT problem
# S_m, _ = src.eval(self.survey.prob)
# if S_m is not None:
# b[:,i] += 1./(1j*omega(src.freq)) * S_m
@@ -426,7 +302,7 @@ class Fields3D_ePrimSec(BaseNSEMFields):
"""
Derivative of the fields object wrt u.
:param NSEMsrc src: NSEM source
:param MTsrc src: MT source
:param numpy.ndarray v: random vector of f_sol.size
This function stacks the fields derivatives appropriately
@@ -443,7 +319,7 @@ class Fields3D_ePrimSec(BaseNSEMFields):
"""
Derivative of the fields object wrt u.
:param NSEMsrc src: NSEM source
:param MTsrc src: MT source
:param numpy.ndarray v: random vector of f_sol.size
This function stacks the fields derivatives appropriately
+291
View File
@@ -0,0 +1,291 @@
from SimPEG.EM.Utils import omega
from SimPEG import mkvc
from scipy.constants import mu_0
from SimPEG.MT.BaseMT import BaseMTProblem
from SimPEG.MT.SurveyMT import Survey, Data
from SimPEG.MT.FieldsMT import Fields1D_e
from SimPEG.MT.Utils.MT1Danalytic import getEHfields
import numpy as np
import multiprocessing, sys, time
class eForm_psField(BaseMTProblem):
"""
A MT problem soving a e formulation and primary/secondary fields decomposion.
By eliminating the magnetic flux density using
.. math ::
\mathbf{b} = \\frac{1}{i \omega}\\left(-\mathbf{C} \mathbf{e} \\right)
we can write Maxwell's equations as a second order system in \\\(\\\mathbf{e}\\\) only:
.. math ::
\\left(\mathbf{C}^T \mathbf{M^e_{\mu^{-1}}} \mathbf{C} + i \omega \mathbf{M^f_\sigma}] \mathbf{e}_{s} =& i \omega \mathbf{M^f_{\delta \sigma}} \mathbf{e}_{p}
which we solve for \\\(\\\mathbf{e_s}\\\). The total field \\\mathbf{e}\\ = \\\mathbf{e_p}\\ + \\\mathbf{e_s}\\.
The primary field is estimated from a background model (commonly half space ).
"""
# From FDEMproblem: Used to project the fields. Currently not used for MTproblem.
_fieldType = 'e_1d'
_eqLocs = 'EF'
_sigmaPrimary = None
def __init__(self, mesh, **kwargs):
BaseMTProblem.__init__(self, mesh, **kwargs)
self.fieldsPair = Fields1D_e
# self._sigmaPrimary = sigmaPrimary
@property
def MeMui(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MeMui', None) is None:
self._MeMui = self.mesh.getEdgeInnerProduct(1.0/mu_0)
return self._MeMui
@property
def MfSigma(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MfSigma', None) is None:
self._MfSigma = self.mesh.getFaceInnerProduct(self.curModel.sigma)
return self._MfSigma
@property
def sigmaPrimary(self):
"""
A background model, use for the calculation of the primary fields.
"""
return self._sigmaPrimary
@sigmaPrimary.setter
def sigmaPrimary(self, val):
# Note: TODO add logic for val, make sure it is the correct size.
self._sigmaPrimary = val
def getA(self, freq):
"""
Function to get the A matrix.
:param float freq: Frequency
:rtype: scipy.sparse.csr_matrix
:return: A
"""
# Note: need to use the code above since in the 1D problem I want
# e to live on Faces(nodes) and h on edges(cells). Might need to rethink this
# Possible that _fieldType and _eqLocs can fix this
MeMui = self.MeMui
MfSigma = self.MfSigma
C = self.mesh.nodalGrad
# Make A
A = C.T*MeMui*C + 1j*omega(freq)*MfSigma
# Either return full or only the inner part of A
return A
def getADeriv_m(self, freq, u, v, adjoint=False):
"""
The derivative of A wrt sigma
"""
dsig_dm = self.curModel.sigmaDeriv
MeMui = self.MeMui
#
u_src = u['e_1dSolution']
dMfSigma_dm = self.mesh.getFaceInnerProductDeriv(self.curModel.sigma)(u_src) * self.curModel.sigmaDeriv
if adjoint:
return 1j * omega(freq) * ( dMfSigma_dm.T * v )
# Note: output has to be nN/nF, not nC/nE.
# v should be nC
return 1j * omega(freq) * ( dMfSigma_dm * v )
def getRHS(self, freq):
"""
Function to return the right hand side for the system.
:param float freq: Frequency
:rtype: numpy.ndarray (nF, 1), numpy.ndarray (nF, 1)
:return: RHS for 1 polarizations, primary fields
"""
# Get sources for the frequncy(polarizations)
Src = self.survey.getSrcByFreq(freq)[0]
S_e = Src.S_e(self)
return -1j * omega(freq) * S_e
def getRHSDeriv_m(self, freq, v, adjoint=False):
"""
The derivative of the RHS wrt sigma
"""
Src = self.survey.getSrcByFreq(freq)[0]
S_eDeriv = Src.S_eDeriv_m(self, v, adjoint)
return -1j * omega(freq) * S_eDeriv
def fields(self, m):
'''
Function to calculate all the fields for the model m.
:param np.ndarray (nC,) m: Conductivity model
'''
# Set the current model
self.curModel = m
F = Fields1D_e(self.mesh, self.survey)
for freq in self.survey.freqs:
if self.verbose:
startTime = time.time()
print 'Starting work for {:.3e}'.format(freq)
sys.stdout.flush()
A = self.getA(freq)
rhs = self.getRHS(freq)
Ainv = self.Solver(A, **self.solverOpts)
e_s = Ainv * rhs
# Store the fields
Src = self.survey.getSrcByFreq(freq)[0]
# NOTE: only store the e_solution(secondary), all other components calculated in the fields object
F[Src, 'e_1dSolution'] = e_s[:,-1] # Only storing the yx polarization as 1d
# Note curl e = -iwb so b = -curl e /iw
# b = -( self.mesh.nodalGrad * e )/( 1j*omega(freq) )
# F[Src, 'b_1d'] = b[:,1]
if self.verbose:
print 'Ran for {:f} seconds'.format(time.time()-startTime)
sys.stdout.flush()
return F
# Note this is not fully functional.
# Missing:
# Fields class corresponding to the fields
# Update Jvec and Jtvec to include all the derivatives components
# Other things ...
class eForm_TotalField(BaseMTProblem):
"""
A MT problem solving a e formulation and a Total bondary domain decompostion.
Solves the equation:
Math:
"""
# From FDEMproblem: Used to project the fields. Currently not used for MTproblem.
_fieldType = 'e'
_eqLocs = 'EF'
def __init__(self, mesh, **kwargs):
BaseMTProblem.__init__(self, mesh, **kwargs)
@property
def MeMui(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MeMui', None) is None:
self._MeMui = self.mesh.getEdgeInnerProduct(1.0/mu_0)
return self._MeMui
@property
def MfSigma(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MfSigma', None) is None:
self._MfSigma = self.mesh.getFaceInnerProduct(self.curModel.sigma)
return self._MfSigma
def getA(self, freq, full=False):
"""
Function to get the A matrix.
:param float freq: Frequency
:param logic full: Return full A or the inner part
:rtype: scipy.sparse.csr_matrix
:return: A
"""
MeMui = self.MeMui
MfSigma = self.MfSigma
# Note: need to use the code above since in the 1D problem I want
# e to live on Faces(nodes) and h on edges(cells). Might need to rethink this
# Possible that _fieldType and _eqLocs can fix this
# MeMui = self.MfMui
# MfSigma = self.MfSigma
C = self.mesh.nodalGrad
# Make A
A = C.T*MeMui*C + 1j*omega(freq)*MfSigma
# Either return full or only the inner part of A
if full:
return A
else:
return A[1:-1,1:-1]
def getADeriv_m(self, freq, u, v, adjoint=False):
raise NotImplementedError('getADeriv is not implemented')
def getRHS(self, freq):
"""
Function to return the right hand side for the system.
:param float freq: Frequency
:rtype: numpy.ndarray (nE, 2), numpy.ndarray (nE, 2)
:return: RHS for both polarizations, primary fields
"""
# Get sources for the frequency
# NOTE: Need to use the source information, doesn't really apply in 1D
src = self.survey.getSrcByFreq(freq)
# Get the full A
A = self.getA(freq,full=True)
# Define the outer part of the solution matrix
Aio = A[1:-1,[0,-1]]
Ed, Eu, Hd, Hu = getEHfields(self.mesh,self.curModel.sigma,freq,self.mesh.vectorNx)
Etot = (Ed + Eu)
sourceAmp = 1.0
Etot = ((Etot/Etot[-1])*sourceAmp) # Scale the fields to be equal to sourceAmp at the top
## Note: The analytic solution is derived with e^iwt
eBC = np.r_[Etot[0],Etot[-1]]
# The right hand side
return -Aio*eBC, eBC
def getRHSderiv_m(self, freq, backSigma, u, v, adjoint=False):
raise NotImplementedError('getRHSDeriv not implemented yet')
return None
def fields(self, m):
'''
Function to calculate all the fields for the model m.
:param np.ndarray (nC,) m: Conductivity model
:param np.ndarray (nC,) m_back: Background conductivity model
'''
self.curModel = m
# RHS, CalcFields = self.getRHS(freq,m_back), self.calcFields
F = Fields1D_e(self.mesh, self.survey)
for freq in self.survey.freqs:
if self.verbose:
startTime = time.time()
print 'Starting work for {:.3e}'.format(freq)
sys.stdout.flush()
A = self.getA(freq)
rhs, e_o = self.getRHS(freq)
Ainv = self.Solver(A, **self.solverOpts)
e_i = Ainv * rhs
e = mkvc(np.r_[e_o[0], e_i, e_o[1]],2)
# Store the fields
Src = self.survey.getSrcByFreq(freq)
# NOTE: only store e fields
F[Src, 'e_1dSolution'] = e[:,0]
if self.verbose:
print 'Ran for {:f} seconds'.format(time.time()-startTime)
sys.stdout.flush()
return F
+1
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@@ -0,0 +1 @@
from Probs import eForm_TotalField, eForm_psField
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+1
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@@ -0,0 +1 @@
pass
+138
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@@ -0,0 +1,138 @@
from SimPEG import Survey, Problem, Utils, Models, np, sp, mkvc, SolverLU as SimpegSolver
from SimPEG.EM.Utils import omega
from scipy.constants import mu_0
from SimPEG.MT.BaseMT import BaseMTProblem
from SimPEG.MT.SurveyMT import Survey, Data
from SimPEG.MT.FieldsMT import Fields3D_e
import multiprocessing, sys, time
class eForm_ps(BaseMTProblem):
"""
A MT problem solving a e formulation and a primary/secondary fields decompostion.
By eliminating the magnetic flux density using
.. math ::
\mathbf{b} = \\frac{1}{i \omega}\\left(-\mathbf{C} \mathbf{e} \\right)
we can write Maxwell's equations as a second order system in \\\(\\\mathbf{e}\\\) only:
.. math ::
\\left(\mathbf{C}^T \mathbf{M^f_{\mu^{-1}}} \mathbf{C} + i \omega \mathbf{M^e_\sigma}] \mathbf{e}_{s} =& i \omega \mathbf{M^e_{\delta \sigma}} \mathbf{e}_{p}
which we solve for \\\(\\\mathbf{e_s}\\\). The total field \\\mathbf{e}\\ = \\\mathbf{e_p}\\ + \\\mathbf{e_s}\\.
The primary field is estimated from a background model (commonly as a 1D model).
"""
# From FDEMproblem: Used to project the fields. Currently not used for MTproblem.
_fieldType = 'e'
_eqLocs = 'FE'
fieldsPair = Fields3D_e
_sigmaPrimary = None
def __init__(self, mesh, **kwargs):
BaseMTProblem.__init__(self, mesh, **kwargs)
@property
def sigmaPrimary(self):
"""
A background model, use for the calculation of the primary fields.
"""
return self._sigmaPrimary
@sigmaPrimary.setter
def sigmaPrimary(self, val):
# Note: TODO add logic for val, make sure it is the correct size.
self._sigmaPrimary = val
def getA(self, freq):
"""
Function to get the A system.
:param float freq: Frequency
:rtype: scipy.sparse.csr_matrix
:return: A
"""
Mmui = self.MfMui
Msig = self.MeSigma
C = self.mesh.edgeCurl
return C.T*Mmui*C + 1j*omega(freq)*Msig
def getADeriv_m(self, freq, u, v, adjoint=False):
"""
Calculate the derivative of A wrt m.
"""
# This considers both polarizations and returns a nE,2 matrix for each polarization
if adjoint:
dMe_dsigV = sp.hstack(( self.MeSigmaDeriv( u['e_pxSolution'] ).T, self.MeSigmaDeriv(u['e_pySolution'] ).T ))*v
else:
# Need a nE,2 matrix to be returned
dMe_dsigV = np.hstack(( mkvc(self.MeSigmaDeriv( u['e_pxSolution'] )*v,2), mkvc( self.MeSigmaDeriv(u['e_pySolution'] )*v,2) ))
return 1j * omega(freq) * dMe_dsigV
def getRHS(self, freq):
"""
Function to return the right hand side for the system.
:param float freq: Frequency
:rtype: numpy.ndarray (nE, 2), numpy.ndarray (nE, 2)
:return: RHS for both polarizations, primary fields
"""
# Get sources for the frequncy(polarizations)
Src = self.survey.getSrcByFreq(freq)[0]
S_e = Src.S_e(self)
return -1j * omega(freq) * S_e
def getRHSDeriv_m(self, freq, v, adjoint=False):
"""
The derivative of the RHS with respect to sigma
"""
Src = self.survey.getSrcByFreq(freq)[0]
S_eDeriv = Src.S_eDeriv_m(self, v, adjoint)
return -1j * omega(freq) * S_eDeriv
def fields(self, m):
'''
Function to calculate all the fields for the model m.
:param np.ndarray (nC,) m: Conductivity model
'''
# Set the current model
self.curModel = m
F = Fields3D_e(self.mesh, self.survey)
for freq in self.survey.freqs:
if self.verbose:
startTime = time.time()
print 'Starting work for {:.3e}'.format(freq)
sys.stdout.flush()
A = self.getA(freq)
rhs = self.getRHS(freq)
# Solve the system
Ainv = self.Solver(A, **self.solverOpts)
e_s = Ainv * rhs
# Store the fields
Src = self.survey.getSrcByFreq(freq)[0]
# Store the fieldss
F[Src, 'e_pxSolution'] = e_s[:,0]
F[Src, 'e_pySolution'] = e_s[:,1]
# Note curl e = -iwb so b = -curl/iw
if self.verbose:
print 'Ran for {:f} seconds'.format(time.time()-startTime)
sys.stdout.flush()
Ainv.clean()
return F
+1
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@@ -0,0 +1 @@
from Probs import eForm_ps
+13 -13
View File
@@ -11,9 +11,9 @@ import sys
### Sources ###
#################
class BaseNSEMSrc(FDEMBaseSrc):
class BaseMTSrc(FDEMBaseSrc):
'''
Sources for the NSEM problem.
Sources for the MT problem.
Use the SimPEG BaseSrc, since the source fields share properties with the transmitters.
:param float freq: The frequency of the source
@@ -29,28 +29,28 @@ class BaseNSEMSrc(FDEMBaseSrc):
FDEMBaseSrc.__init__(self, rxList)
# 1D sources
class polxy_1DhomotD(BaseNSEMSrc):
class polxy_1DhomotD(BaseMTSrc):
"""
NSEM source for both polarizations (x and y) for the total Domain.
MT source for both polarizations (x and y) for the total Domain.
It calculates fields calculated based on conditions on the boundary of the domain.
"""
def __init__(self, rxList, freq):
BaseNSEMSrc.__init__(self, rxList, freq)
BaseMTSrc.__init__(self, rxList, freq)
# TODO: need to add the primary fields calc and source terms into the problem.
# Need to implement such that it works for all dims.
class polxy_1Dprimary(BaseNSEMSrc):
class polxy_1Dprimary(BaseMTSrc):
"""
NSEM source for both polarizations (x and y) given a 1D primary models.
MT source for both polarizations (x and y) given a 1D primary models.
It assigns fields calculated from the 1D model as fields in the full space of the problem.
"""
def __init__(self, rxList, freq):
# assert mkvc(self.mesh.hz.shape,1) == mkvc(sigma1d.shape,1),'The number of values in the 1D background model does not match the number of vertical cells (hz).'
self.sigma1d = None
BaseNSEMSrc.__init__(self, rxList, freq)
BaseMTSrc.__init__(self, rxList, freq)
# Hidden property of the ePrimary
self._ePrimary = None
@@ -86,7 +86,7 @@ class polxy_1Dprimary(BaseNSEMSrc):
Get the electrical field source
"""
e_p = self.ePrimary(problem)
Map_sigma_p = Maps.SurjectVertical1D(problem.mesh)
Map_sigma_p = Maps.Vertical1DMap(problem.mesh)
sigma_p = Map_sigma_p._transform(self.sigma1d)
# Make mass matrix
# Note: M(sig) - M(sig_p) = M(sig - sig_p)
@@ -128,15 +128,15 @@ class polxy_1Dprimary(BaseNSEMSrc):
# v should be nC size
return MsigmaDeriv * v
class polxy_3Dprimary(BaseNSEMSrc):
class polxy_3Dprimary(BaseMTSrc):
"""
NSEM source for both polarizations (x and y) given a 3D primary model. It assigns fields calculated from the 1D model
MT source for both polarizations (x and y) given a 3D primary model. It assigns fields calculated from the 1D model
as fields in the full space of the problem.
"""
def __init__(self, rxList, freq):
# assert mkvc(self.mesh.hz.shape,1) == mkvc(sigma1d.shape,1),'The number of values in the 1D background model does not match the number of vertical cells (hz).'
self.sigmaPrimary = None
BaseNSEMSrc.__init__(self, rxList, freq)
BaseMTSrc.__init__(self, rxList, freq)
# Hidden property of the ePrimary
self._ePrimary = None
@@ -163,7 +163,7 @@ class polxy_3Dprimary(BaseNSEMSrc):
Get the electrical field source
"""
e_p = self.ePrimary(problem)
Map_sigma_p = Maps.SurjectVertical1D(problem.mesh)
Map_sigma_p = Maps.Vertical1DMap(problem.mesh)
sigma_p = Map_sigma_p._transform(self.sigma1d)
# Make mass matrix
# Note: M(sig) - M(sig_p) = M(sig - sig_p)
@@ -4,7 +4,7 @@ from SimPEG.EM.Utils import omega
from scipy.constants import mu_0
from numpy.lib import recfunctions as recFunc
from Utils import rec2ndarr
import SrcNSEM
import SrcMT
import sys
#################
@@ -63,9 +63,9 @@ class Rx(SimPEGsurvey.BaseRx):
'''
Project the fields to natural source data.
:param SrcNSEM src: The source of the fields to project
:param SrcMT src: The source of the fields to project
:param SimPEG.Mesh mesh:
:param FieldsNSEM f: Natural source fields object to project
:param FieldsMT f: Natural source fields object to project
'''
## NOTE: Assumes that e is on t
@@ -143,9 +143,9 @@ class Rx(SimPEGsurvey.BaseRx):
"""
The derivative of the projection wrt u
:param NSEMsrc src: NSEM source
:param MTsrc src: MT source
:param TensorMesh mesh: Mesh defining the topology of the problem
:param NSEMfields f: NSEM fields object of the source
:param MTfields f: MT fields object of the source
:param numpy.ndarray v: Random vector of size
"""
@@ -390,12 +390,12 @@ class Rx(SimPEGsurvey.BaseRx):
#################
class Survey(SimPEGsurvey.BaseSurvey):
"""
Survey class for NSEM. Contains all the sources associated with the survey.
Survey class for MT. Contains all the sources associated with the survey.
:param list srcList: List of sources associated with the survey
"""
srcPair = SrcNSEM.BaseNSEMSrc
srcPair = SrcMT.BaseMTSrc
def __init__(self, srcList, **kwargs):
# Sort these by frequency
@@ -443,7 +443,7 @@ class Survey(SimPEGsurvey.BaseSurvey):
#################
class Data(SimPEGsurvey.Data):
'''
Data class for NSEMdata. Stores the data vector indexed by the survey.
Data class for MTdata. Stores the data vector indexed by the survey.
:param SimPEG survey object survey:
:param v vector of the data in order matching of the survey
@@ -461,7 +461,7 @@ class Data(SimPEGsurvey.Data):
def toRecArray(self,returnType='RealImag'):
'''
Function that returns a numpy.recarray for a SimpegNSEM impedance data object.
Function that returns a numpy.recarray for a SimpegMT impedance data object.
:param str returnType: Switches between returning a rec array where the impedance is split to real and imaginary ('RealImag') or is a complex ('Complex')
@@ -483,7 +483,7 @@ class Data(SimPEGsurvey.Data):
locs = np.hstack((np.array([[0.0]]),locs))
tArrRec = np.concatenate((src.freq*np.ones((locs.shape[0],1)),locs,np.nan*np.ones((locs.shape[0],12))),axis=1).view(dtRI)
# np.array([(src.freq,rx.locs[0,0],rx.locs[0,1],rx.locs[0,2],np.nan ,np.nan ,np.nan ,np.nan ,np.nan ,np.nan ,np.nan ,np.nan ) for rx in src.rxList],dtype=dtRI)
# Get the type and the value for the DataNSEM object as a list
# Get the type and the value for the DataMT object as a list
typeList = [[rx.rxType.replace('z1d','zyx'),self[src,rx]] for rx in src.rxList]
# Insert the values to the temp array
for nr,(key,val) in enumerate(typeList):
@@ -517,17 +517,17 @@ class Data(SimPEGsurvey.Data):
@classmethod
def fromRecArray(cls, recArray, srcType='primary'):
"""
Class method that reads in a numpy record array to NSEMdata object.
Class method that reads in a numpy record array to MTdata object.
Only imports the impedance data.
"""
if srcType=='primary':
src = SrcNSEM.polxy_1Dprimary
src = SrcMT.polxy_1Dprimary
elif srcType=='total':
src = SrcNSEM.polxy_1DhomotD
src = SrcMT.polxy_1DhomotD
else:
raise NotImplementedError('{:s} is not a valid source type for NSEMdata')
raise NotImplementedError('{:s} is not a valid source type for MTdata')
# Find all the frequencies in recArray
uniFreq = np.unique(recArray['freq'])
@@ -3,7 +3,7 @@
import numpy as np, SimPEG as simpeg
from scipy.constants import mu_0, epsilon_0 as eps_0
def getEHfields(m1d,sigma,freq,zd,scaleUD=True,scaleValue=1):
def getEHfields(m1d,sigma,freq,zd,scaleUD=True):
'''Analytic solution for MT 1D layered earth. Returns E and H fields.
:param SimPEG.mesh, object m1d: Mesh object with the 1D spatial information.
@@ -12,7 +12,7 @@ def getEHfields(m1d,sigma,freq,zd,scaleUD=True,scaleValue=1):
:param numpy array, vector zd: location to calculate EH fields at
:param bollean, scaleUD: scales the output to be 1 at the top, increases numeracal stability.
Assumes a halfspace with the same conductive as the deepest cell.
Assumes a halfspace with the same conductive as the last cell below.
'''
# Note add an error check for the mesh and sigma are the same size.
@@ -29,7 +29,7 @@ def getEHfields(m1d,sigma,freq,zd,scaleUD=True,scaleValue=1):
# Initiate the propagation matrix, in the order down up.
UDp = np.zeros((2,m1d.nC+1),dtype=complex)
UDp[1,0] = scaleValue # Set the wave amplitude as 1 into the half-space at the bottom of the mesh
UDp[1,0] = 1. # Set the wave amplitude as 1 into the half-space at the bottom of the mesh
# Loop over all the layers, starting at the bottom layer
for lnr, h in enumerate(m1d.hx): # lnr-number of layer, h-thickness of the layer
# Calculate
@@ -38,9 +38,9 @@ def getEHfields(m1d,sigma,freq,zd,scaleUD=True,scaleValue=1):
# Build the propagation matrix
# Convert fields to down/up going components in layer below current layer
Pj1 = np.array([[1,1],[yp1,-yp1]],dtype=complex)
Pj1 = np.array([[1,1],[yp1,-yp1]])
# Convert fields to down/up going components in current layer
Pjinv = 1./2*np.array([[1,zp],[1,-zp]],dtype=complex)
Pjinv = 1./2*np.array([[1,zp],[1,-zp]])
# Propagate down and up components through the current layer
elamh = np.array([[np.exp(-1j*k[lnr+1]*h),0],[0,np.exp(1j*k[lnr+1]*h)]])
@@ -48,14 +48,7 @@ def getEHfields(m1d,sigma,freq,zd,scaleUD=True,scaleValue=1):
UDp[:,lnr+1] = elamh.dot(Pjinv.dot(Pj1)).dot(UDp[:,lnr])
if scaleUD:
# Scale the values such that 1 at the top
scaleVal = UDp[:,lnr+1::-1]/UDp[1,lnr+1]
if np.any(np.isnan(scaleVal)):
# If there is a nan (thickness very great), rebuild the move up cell
scaleVal = np.zeros_like(UDp[:,lnr+1::-1],dtype=complex)
scaleVal[1,0] = scaleValue
UDp[:,lnr+1::-1] = scaleVal
UDp[:,lnr+1::-1] = UDp[:,lnr+1::-1]/UDp[1,lnr+1]
# Calculate the fields
Ed = np.empty((zd.size,),dtype=complex)
+4
View File
@@ -0,0 +1,4 @@
from MT1Dsolutions import * # Add the names of the functions
from MT1Danalytic import *
from dataUtils import *
from ediFilesUtils import *
@@ -5,25 +5,25 @@ import numpy.lib.recfunctions as recFunc
from scipy.constants import mu_0
from scipy import interpolate as sciint
def getAppRes(NSEMdata):
def getAppRes(MTdata):
# Make impedance
zList = []
for src in NSEMdata.survey.srcList:
for src in MTdata.survey.srcList:
zc = [src.freq]
for rx in src.rxList:
if 'i' in rx.rxType:
m=1j
else:
m = 1
zc.append(m*NSEMdata[src,rx])
zc.append(m*MTdata[src,rx])
zList.append(zc)
return [appResPhs(zList[i][0],np.sum(zList[i][1:3])) for i in np.arange(len(zList))]
def rotateData(NSEMdata,rotAngle):
def rotateData(MTdata,rotAngle):
'''
Function that rotates clockwist by rotAngle (- negative for a counter-clockwise rotation)
'''
recData = NSEMdata.toRecArray('Complex')
recData = MTdata.toRecArray('Complex')
impData = rec2ndarr(recData[['zxx','zxy','zyx','zyy']],complex)
# Make the rotation matrix
# c,s,zxx,zxy,zyx,zyy = sympy.symbols('c,s,zxx,zxy,zyx,zyy')
@@ -40,8 +40,8 @@ def rotateData(NSEMdata,rotAngle):
for nr,comp in enumerate(['zxx','zxy','zyx','zyy']):
outRec[comp] = rotData[:,nr]
from SimPEG import NSEM
return NSEM.Data.fromRecArray(outRec)
from SimPEG import MT
return MT.Data.fromRecArray(outRec)
def appResPhs(freq,z):
@@ -57,10 +57,10 @@ def rec2ndarr(x,dt=float):
return x.view((dt, len(x.dtype.names)))
def makeAnalyticSolution(mesh,model,elev,freqs):
from SimPEG import NSEM
from SimPEG import MT
data1D = []
for freq in freqs:
anaEd, anaEu, anaHd, anaHu = NSEM.Utils.MT1Danalytic.getEHfields(mesh,model,freq,elev)
anaEd, anaEu, anaHd, anaHu = MT.Utils.MT1Danalytic.getEHfields(mesh,model,freq,elev)
anaE = anaEd+anaEu
anaH = anaHd+anaHu
@@ -71,7 +71,7 @@ def makeAnalyticSolution(mesh,model,elev,freqs):
return dataRec
def plotMT1DModelData(problem,models,symList=None):
from SimPEG import NSEM
from SimPEG import MT
# Setup the figure
fontSize = 15
@@ -79,7 +79,7 @@ def plotMT1DModelData(problem,models,symList=None):
axM = fig.add_axes([0.075,.1,.25,.875])
axM.set_xlabel('Resistivity [Ohm*m]',fontsize=fontSize)
axM.set_xlim(1e-1,1e5)
# axM.set_ylim(-10000,5000)
axM.set_ylim(-10000,5000)
axM.set_ylabel('Depth [km]',fontsize=fontSize)
axR = fig.add_axes([0.42,.575,.5,.4])
axR.set_xscale('log')
@@ -132,94 +132,38 @@ def plotMT1DModelData(problem,models,symList=None):
freq = simpeg.mkvc(data1D['freq'],2)
res, phs = appResPhs(freq,allData)
if False:
stdCol = 'gray'
axRtw = axR.twinx()
axRtw.set_ylabel('Std of log10',color=stdCol)
[(t.set_color(stdCol), t.set_rotation(-45)) for t in axRtw.get_yticklabels()]
axPtw = axP.twinx()
axPtw.set_ylabel('Std ',color=stdCol)
[t.set_color(stdCol) for t in axPtw.get_yticklabels()]
axRtw.plot(freq, np.std(np.log10(res),1),'--',color=stdCol)
axPtw.plot(freq, np.std(phs,1),'--',color=stdCol)
stdCol = 'gray'
axRtw = axR.twinx()
axRtw.set_ylabel('Std of log10',color=stdCol)
[(t.set_color(stdCol), t.set_rotation(-45)) for t in axRtw.get_yticklabels()]
axPtw = axP.twinx()
axPtw.set_ylabel('Std ',color=stdCol)
[t.set_color(stdCol) for t in axPtw.get_yticklabels()]
axRtw.plot(freq, np.std(np.log10(res),1),'--',color=stdCol)
axPtw.plot(freq, np.std(phs,1),'--',color=stdCol)
# Fix labels and ticks
# yMtick = [l/1000 for l in axM.get_yticks().tolist()]
# axM.set_yticklabels(yMtick)
yMtick = [l/1000 for l in axM.get_yticks().tolist()]
axM.set_yticklabels(yMtick)
[ l.set_rotation(90) for l in axM.get_yticklabels()]
[ l.set_rotation(90) for l in axR.get_yticklabels()]
# [(t.set_color(stdCol), t.set_rotation(-45)) for t in axRtw.get_yticklabels()]
# [t.set_color(stdCol) for t in axPtw.get_yticklabels()]
[(t.set_color(stdCol), t.set_rotation(-45)) for t in axRtw.get_yticklabels()]
[t.set_color(stdCol) for t in axPtw.get_yticklabels()]
for ax in [axM,axR,axP]:
ax.xaxis.set_tick_params(labelsize=fontSize)
ax.yaxis.set_tick_params(labelsize=fontSize)
return fig
def plotImpAppRes(dataArrays,plotLoc,textStr=[]):
''' Plots amplitude impedance and phase'''
# fig = plt.figure(1,(7, 7))
import plotDataTypes as pDt
# axes = ImageGrid(fig, (0.05,0.05,0.875,0.875),nrows_ncols = (2, 2),axes_pad = 0.25,add_all=True,share_all=True,label_mode = "L")
# Make the figure and axes
fig,axT=plt.subplots(2,2,sharex=True)
axes = axT.ravel()
fig.set_size_inches((13.5,7.0))
fig.suptitle('{:s}\nStation at: {:.1f}x ; {:.1f}y'.format(textStr,plotLoc[0],plotLoc[1]))
# Have to deal with axes
# Set log
for ax in axes.ravel():
ax.set_xscale('log')
axes[0].invert_xaxis()
axes[0].set_yscale('log')
axes[2].set_yscale('log')
# Set labels
axes[2].set_xlabel('Frequency [Hz]')
axes[3].set_xlabel('Frequency [Hz]')
axes[0].set_ylabel('Apperent resistivity [Ohm m]')
axes[1].set_ylabel('Apperent phase [degrees]')
axes[1].set_ylim(-180,180)
axes[2].set_ylabel('Impedance amplitude [V/A]')
axes[3].set_ylim(-180,180)
axes[3].set_ylabel('Impedance angle [degrees]')
# Plot the data
for nr,dataArray in enumerate(dataArrays):
if nr==1:
parSym = '*'
else:
parSym = 's'
# app res
pDt.plotIsoStaImpedance(axes[0],plotLoc,dataArray,'zxy',par='res',pSym=parSym)
pDt.plotIsoStaImpedance(axes[0],plotLoc,dataArray,'zyx',par='res',pSym=parSym)
# app phs
pDt.plotIsoStaImpedance(axes[1],plotLoc,dataArray,'zxy',par='phs',pSym=parSym)
pDt.plotIsoStaImpedance(axes[1],plotLoc,dataArray,'zyx',par='phs',pSym=parSym)
# imp abs
pDt.plotIsoStaImpedance(axes[2],plotLoc,dataArray,'zxx',par='abs',pSym=parSym)
pDt.plotIsoStaImpedance(axes[2],plotLoc,dataArray,'zxy',par='abs',pSym=parSym)
pDt.plotIsoStaImpedance(axes[2],plotLoc,dataArray,'zyx',par='abs',pSym=parSym)
pDt.plotIsoStaImpedance(axes[2],plotLoc,dataArray,'zyy',par='abs',pSym=parSym)
# imp abs
pDt.plotIsoStaImpedance(axes[3],plotLoc,dataArray,'zxx',par='phs',pSym=parSym)
pDt.plotIsoStaImpedance(axes[3],plotLoc,dataArray,'zxy',par='phs',pSym=parSym)
pDt.plotIsoStaImpedance(axes[3],plotLoc,dataArray,'zyx',par='phs',pSym=parSym)
pDt.plotIsoStaImpedance(axes[3],plotLoc,dataArray,'zyy',par='phs',pSym=parSym)
return fig,axes
def printTime():
import time
print time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime())
def convert3Dto1Dobject(NSEMdata,rxType3D='zyx'):
from SimPEG import NSEM
def convert3Dto1Dobject(MTdata,rxType3D='zyx'):
from SimPEG import MT
# Find the unique locations
# Need to find the locations
recDataTemp = NSEMdata.toRecArray()
recDataTemp = MTdata.toRecArray()
# Check if survey.std has been assigned.
## NEED TO: write this...
# Calculte and add the DET of the tensor to the recArray
@@ -241,24 +185,24 @@ def convert3Dto1Dobject(NSEMdata,rxType3D='zyx'):
# Make the receiver list
rx1DList = []
for rxType in ['z1dr','z1di']:
rx1DList.append(NSEM.Rx(simpeg.mkvc(loc,2).T,rxType))
rx1DList.append(MT.Rx(simpeg.mkvc(loc,2).T,rxType))
# Source list
locrecData = recData[np.sqrt(np.sum( (rec2ndarr(recData[['x','y','z']]).data - loc )**2,axis=1)) < 1e-5]
dat1DList = []
src1DList = []
for freq in locrecData['freq']:
src1DList.append(NSEM.SrcNSEM.src_polxy_1Dprimary(rx1DList,freq))
src1DList.append(MT.SrcMT.src_polxy_1Dprimary(rx1DList,freq))
for comp in ['r','i']:
dat1DList.append( corr * locrecData[rxType3D+comp][locrecData['freq']== freq].data )
# Make the survey
sur1D = NSEM.Survey(src1DList)
sur1D = MT.Survey(src1DList)
# Make the data
dataVec = np.hstack(dat1DList)
dat1D = NSEM.Data(sur1D,dataVec)
dat1D = MT.Data(sur1D,dataVec)
sur1D.dobs = dataVec
# Need to take NSEMdata.survey.std and split it as well.
# Need to take MTdata.survey.std and split it as well.
std=0.05
sur1D.std = np.abs(sur1D.dobs*std) #+ 0.01*np.linalg.norm(sur1D.dobs)
mtData1DList.append(dat1D)
@@ -266,29 +210,29 @@ def convert3Dto1Dobject(NSEMdata,rxType3D='zyx'):
# Return the the list of data.
return mtData1DList
def resampleNSEMdataAtFreq(NSEMdata,freqs):
def resampleMTdataAtFreq(MTdata,freqs):
"""
Function to resample NSEMdata at set of frequencies
Function to resample MTdata at set of frequencies
"""
from SimPEG import NSEM
from SimPEG import MT
# Make a rec array
NSEMrec = NSEMdata.toRecArray().data
MTrec = MTdata.toRecArray().data
# Find unique locations
uniLoc = np.unique(NSEMrec[['x','y','z']])
uniFreq = NSEMdata.survey.freqs
uniLoc = np.unique(MTrec[['x','y','z']])
uniFreq = MTdata.survey.freqs
# Get the comps
dNames = NSEMrec.dtype
dNames = MTrec.dtype
# Loop over all the locations and interpolate
for loc in uniLoc:
# Find the index of the station
ind = np.sqrt(np.sum((rec2ndarr(NSEMrec[['x','y','z']]) - rec2ndarr(loc))**2,axis=1)) < 1. # Find dist of 1 m accuracy
ind = np.sqrt(np.sum((rec2ndarr(MTrec[['x','y','z']]) - rec2ndarr(loc))**2,axis=1)) < 1. # Find dist of 1 m accuracy
# Make a temporary recArray and interpolate all the components
tArrRec = np.concatenate((simpeg.mkvc(freqs,2),np.ones((len(freqs),1))*rec2ndarr(loc),np.nan*np.ones((len(freqs),12))),axis=1).view(dNames)
for comp in ['zxxr','zxxi','zxyr','zxyi','zyxr','zyxi','zyyr','zyyi','tzxr','tzxi','tzyr','tzyi']:
int1d = sciint.interp1d(NSEMrec[ind]['freq'],NSEMrec[ind][comp],bounds_error=False)
int1d = sciint.interp1d(MTrec[ind]['freq'],MTrec[ind][comp],bounds_error=False)
tArrRec[comp] = simpeg.mkvc(int1d(freqs),2)
# Join together
@@ -297,5 +241,5 @@ def resampleNSEMdataAtFreq(NSEMdata,freqs):
except NameError as e:
outRecArr = tArrRec
# Make the NSEMdata and return
return NSEM.Data.fromRecArray(outRecArr)
# Make the MTdata and return
return MT.Data.fromRecArray(outRecArr)
@@ -2,7 +2,7 @@
from SimPEG import mkvc
from scipy.constants import mu_0
from numpy.lib import recfunctions as recFunc
from SimPEG.NSEM.Utils.dataUtils import rec2ndarr
from SimPEG.MT.Utils.dataUtils import rec2ndarr
# Import modules
import numpy as np
@@ -12,7 +12,7 @@ def homo1DModelSource(mesh,freq,sigma_1d):
'''
# import
from SimPEG.NSEM.Utils import get1DEfields
from SimPEG.MT.Utils import get1DEfields
# Get a 1d solution for a halfspace background
if mesh.dim == 1:
mesh1d = mesh
@@ -77,7 +77,7 @@ def analytic1DModelSource(mesh,freq,sigma_1d):
'''
# import
from SimPEG.NSEM.Utils import getEHfields
from SimPEG.MT.Utils import getEHfields
# Get a 1d solution for a halfspace background
if mesh.dim == 1:
mesh1d = mesh
+46
View File
@@ -0,0 +1,46 @@
import SimPEG as simpeg, numpy as np
def homo1DModelSource(mesh,freq,m_back):
'''
Function that calculates and return background fields for a 3D mesh and model.
The calculuations use 1D field solution for a vertical slice throught model (south-western most column),
which is assigned at the fields everywhere for the respective polarizations.2
:param Simpeg mesh object mesh: Holds information on the discretization
:param float freq: The frequency to solve at
:param np.array m_back: Background model of conductivity to base the calculations on.
:rtype: numpy.ndarray (mesh.nE,2)
:return: eBG_bp, E fields for the background model at both polarizations.
'''
# import
from SimPEG.MT.Utils import get1DEfields
# Get a 1d solution for a halfspace background
mesh1d = simpeg.Mesh.TensorMesh([mesh.hz],np.array([mesh.x0[2]]))
# Note: Everything is using e^iwt
e0_1d = get1DEfields(mesh1d,mesh.r(m_back,'CC','CC','M')[0,0,:],freq)
# Setup x (east) polarization (_x)
ex_px = np.zeros(mesh.vnEx,dtype=complex)
ey_px = np.zeros((mesh.nEy,1),dtype=complex)
ez_px = np.zeros((mesh.nEz,1),dtype=complex)
# Assign the source to ex_x
for i in np.arange(mesh.vnEx[0]):
for j in np.arange(mesh.vnEx[1]):
ex_px[i,j,:] = -e0_1d
eBG_px = np.vstack((simpeg.Utils.mkvc(ex_px,2),ey_px,ez_px))
# Setup y (north) polarization (_py)
ex_py = np.zeros((mesh.nEx,1), dtype='complex128')
ey_py = np.zeros(mesh.vnEy, dtype='complex128')
ez_py = np.zeros((mesh.nEz,1), dtype='complex128')
# Assign the source to ey_py
for i in np.arange(mesh.vnEy[0]):
for j in np.arange(mesh.vnEy[1]):
ey_py[i,j,:] = e0_1d
# ey_py[1:-1,1:-1,1:-1] = 0
eBG_py = np.vstack((ex_py,simpeg.Utils.mkvc(ey_py,2),ez_py))
# Return the electric fields
eBG_bp = np.hstack((eBG_px,eBG_py))
return eBG_bp
+5
View File
@@ -0,0 +1,5 @@
import Utils
from SurveyMT import Rx, Survey, Data
from FieldsMT import Fields1D_e, Fields3D_e
import Problem1D, Problem2D, Problem3D
import SrcMT
+77
View File
@@ -533,6 +533,83 @@ class ActiveCells(InjectActiveCells):
FutureWarning)
InjectActiveCells.__init__(self, mesh, indActive, valInactive, nC)
class InjectActiveCellsTopo(IdentityMap):
"""
Active model parameters. Extend for cells on topography to air cell (only works for tensor mesh)
"""
indActive = None #: Active Cells
valInactive = None #: Values of inactive Cells
nC = None #: Number of cells in the full model
def __init__(self, mesh, indActive, nC=None):
self.mesh = mesh
self.nC = nC or mesh.nC
if indActive.dtype is not bool:
z = np.zeros(self.nC,dtype=bool)
z[indActive] = True
indActive = z
self.indActive = indActive
self.indInactive = np.logical_not(indActive)
inds = np.nonzero(self.indActive)[0]
self.P = sp.csr_matrix((np.ones(inds.size),(inds, range(inds.size))), shape=(self.nC, self.nP))
@property
def shape(self):
return (self.nC, self.nP)
@property
def nP(self):
"""Number of parameters in the model."""
return self.indActive.sum()
def _transform(self, m):
val_temp = np.zeros(self.mesh.nC)
val_temp[self.indActive] = m
valInactive = np.zeros(self.mesh.nC)
#1D
if self.mesh.dim == 1:
z_temp = self.mesh.gridCC
val_temp[~self.indActive] = val_temp[np.argmax(z_temp[self.indActive])]
#2D
elif self.mesh.dim == 2:
act_temp = self.indActive.reshape((self.mesh.nCx, self.mesh.nCy), order = 'F')
val_temp = val_temp.reshape((self.mesh.nCx, self.mesh.nCy), order = 'F')
y_temp = self.mesh.gridCC[:,1].reshape((self.mesh.nCx, self.mesh.nCy), order = 'F')
for i in range(self.mesh.nCx):
act_tempx = act_temp[i,:] == 1
val_temp[i,~act_tempx] = val_temp[i,np.argmax(y_temp[i,act_tempx])]
valInactive[~self.indActive] = Utils.mkvc(val_temp)[~self.indActive]
#3D
elif self.mesh.dim == 3:
act_temp = self.indActive.reshape((self.mesh.nCx*self.mesh.nCy, self.mesh.nCz), order = 'F')
val_temp = val_temp.reshape((self.mesh.nCx*self.mesh.nCy, self.mesh.nCz), order = 'F')
z_temp = self.mesh.gridCC[:,2].reshape((self.mesh.nCx*self.mesh.nCy, self.mesh.nCz), order = 'F')
for i in range(self.mesh.nCx*self.mesh.nCy):
act_tempxy = act_temp[i,:] == 1
val_temp[i,~act_tempxy] = val_temp[i,np.argmax(z_temp[i,act_tempxy])]
valInactive[~self.indActive] = Utils.mkvc(val_temp)[~self.indActive]
self.valInactive = valInactive
return self.P*m + self.valInactive
def inverse(self, D):
return self.P.T*D
def deriv(self, m):
return self.P
class ActiveCellsTopo(InjectActiveCellsTopo):
def __init__(self, mesh, indActive, valInactive, nC=None):
warnings.warn(
"`ActiveCellsTopo` is deprecated and will be removed in future versions. Use `InjectActiveCellsTopo` instead",
FutureWarning)
InjectActiveCellsTopo.__init__(self, mesh, indActive, valInactive, nC)
class Weighting(IdentityMap):
"""
+97 -2
View File
@@ -2,7 +2,6 @@ from SimPEG import Utils, np
from BaseMesh import BaseRectangularMesh
from DiffOperators import DiffOperators
from InnerProducts import InnerProducts
from View import CurvView
# Some helper functions.
length2D = lambda x: (x[:, 0]**2 + x[:, 1]**2)**0.5
@@ -11,7 +10,7 @@ normalize2D = lambda x: x/np.kron(np.ones((1, 2)), Utils.mkvc(length2D(x), 2))
normalize3D = lambda x: x/np.kron(np.ones((1, 3)), Utils.mkvc(length3D(x), 2))
class CurvilinearMesh(BaseRectangularMesh, DiffOperators, InnerProducts, CurvView):
class CurvilinearMesh(BaseRectangularMesh, DiffOperators, InnerProducts):
"""
CurvilinearMesh is a mesh class that deals with curvilinear meshes.
@@ -331,6 +330,102 @@ class CurvilinearMesh(BaseRectangularMesh, DiffOperators, InnerProducts, CurvVie
#############################################
# Plotting Functions #
#############################################
def plotGrid(self, ax=None, nodes=False, faces=False, centers=False, edges=False, lines=True, showIt=False):
"""Plot the nodal, cell-centered and staggered grids for 1,2 and 3 dimensions.
.. plot::
:include-source:
from SimPEG import Mesh, Utils
X, Y = Utils.exampleLrmGrid([3,3],'rotate')
M = Mesh.CurvilinearMesh([X, Y])
M.plotGrid(showIt=True)
"""
import matplotlib.pyplot as plt
import matplotlib
from mpl_toolkits.mplot3d import Axes3D
mkvc = Utils.mkvc
axOpts = {'projection':'3d'} if self.dim == 3 else {}
if ax is None: ax = plt.subplot(111, **axOpts)
NN = self.r(self.gridN, 'N', 'N', 'M')
if self.dim == 2:
if lines:
X1 = np.c_[mkvc(NN[0][:-1, :]), mkvc(NN[0][1:, :]), mkvc(NN[0][:-1, :])*np.nan].flatten()
Y1 = np.c_[mkvc(NN[1][:-1, :]), mkvc(NN[1][1:, :]), mkvc(NN[1][:-1, :])*np.nan].flatten()
X2 = np.c_[mkvc(NN[0][:, :-1]), mkvc(NN[0][:, 1:]), mkvc(NN[0][:, :-1])*np.nan].flatten()
Y2 = np.c_[mkvc(NN[1][:, :-1]), mkvc(NN[1][:, 1:]), mkvc(NN[1][:, :-1])*np.nan].flatten()
X = np.r_[X1, X2]
Y = np.r_[Y1, Y2]
ax.plot(X, Y, 'b-')
if centers:
ax.plot(self.gridCC[:,0],self.gridCC[:,1],'ro')
# Nx = self.r(self.normals, 'F', 'Fx', 'V')
# Ny = self.r(self.normals, 'F', 'Fy', 'V')
# Tx = self.r(self.tangents, 'E', 'Ex', 'V')
# Ty = self.r(self.tangents, 'E', 'Ey', 'V')
# ax.plot(self.gridN[:, 0], self.gridN[:, 1], 'bo')
# nX = np.c_[self.gridFx[:, 0], self.gridFx[:, 0] + Nx[0]*length, self.gridFx[:, 0]*np.nan].flatten()
# nY = np.c_[self.gridFx[:, 1], self.gridFx[:, 1] + Nx[1]*length, self.gridFx[:, 1]*np.nan].flatten()
# ax.plot(self.gridFx[:, 0], self.gridFx[:, 1], 'rs')
# ax.plot(nX, nY, 'r-')
# nX = np.c_[self.gridFy[:, 0], self.gridFy[:, 0] + Ny[0]*length, self.gridFy[:, 0]*np.nan].flatten()
# nY = np.c_[self.gridFy[:, 1], self.gridFy[:, 1] + Ny[1]*length, self.gridFy[:, 1]*np.nan].flatten()
# #ax.plot(self.gridFy[:, 0], self.gridFy[:, 1], 'gs')
# ax.plot(nX, nY, 'g-')
# tX = np.c_[self.gridEx[:, 0], self.gridEx[:, 0] + Tx[0]*length, self.gridEx[:, 0]*np.nan].flatten()
# tY = np.c_[self.gridEx[:, 1], self.gridEx[:, 1] + Tx[1]*length, self.gridEx[:, 1]*np.nan].flatten()
# ax.plot(self.gridEx[:, 0], self.gridEx[:, 1], 'r^')
# ax.plot(tX, tY, 'r-')
# nX = np.c_[self.gridEy[:, 0], self.gridEy[:, 0] + Ty[0]*length, self.gridEy[:, 0]*np.nan].flatten()
# nY = np.c_[self.gridEy[:, 1], self.gridEy[:, 1] + Ty[1]*length, self.gridEy[:, 1]*np.nan].flatten()
# #ax.plot(self.gridEy[:, 0], self.gridEy[:, 1], 'g^')
# ax.plot(nX, nY, 'g-')
elif self.dim == 3:
X1 = np.c_[mkvc(NN[0][:-1, :, :]), mkvc(NN[0][1:, :, :]), mkvc(NN[0][:-1, :, :])*np.nan].flatten()
Y1 = np.c_[mkvc(NN[1][:-1, :, :]), mkvc(NN[1][1:, :, :]), mkvc(NN[1][:-1, :, :])*np.nan].flatten()
Z1 = np.c_[mkvc(NN[2][:-1, :, :]), mkvc(NN[2][1:, :, :]), mkvc(NN[2][:-1, :, :])*np.nan].flatten()
X2 = np.c_[mkvc(NN[0][:, :-1, :]), mkvc(NN[0][:, 1:, :]), mkvc(NN[0][:, :-1, :])*np.nan].flatten()
Y2 = np.c_[mkvc(NN[1][:, :-1, :]), mkvc(NN[1][:, 1:, :]), mkvc(NN[1][:, :-1, :])*np.nan].flatten()
Z2 = np.c_[mkvc(NN[2][:, :-1, :]), mkvc(NN[2][:, 1:, :]), mkvc(NN[2][:, :-1, :])*np.nan].flatten()
X3 = np.c_[mkvc(NN[0][:, :, :-1]), mkvc(NN[0][:, :, 1:]), mkvc(NN[0][:, :, :-1])*np.nan].flatten()
Y3 = np.c_[mkvc(NN[1][:, :, :-1]), mkvc(NN[1][:, :, 1:]), mkvc(NN[1][:, :, :-1])*np.nan].flatten()
Z3 = np.c_[mkvc(NN[2][:, :, :-1]), mkvc(NN[2][:, :, 1:]), mkvc(NN[2][:, :, :-1])*np.nan].flatten()
X = np.r_[X1, X2, X3]
Y = np.r_[Y1, Y2, Y3]
Z = np.r_[Z1, Z2, Z3]
ax.plot(X, Y, 'b', zs=Z)
ax.set_zlabel('x3')
ax.grid(True)
ax.set_xlabel('x1')
ax.set_ylabel('x2')
if showIt: plt.show()
if __name__ == '__main__':
nc = 5
h1 = np.cumsum(np.r_[0, np.ones(nc)/(nc)])
+9 -12
View File
@@ -330,7 +330,7 @@ class CylMesh(BaseTensorMesh, BaseRectangularMesh, InnerProducts, CylView):
raise NotImplementedError('wrapping in the averaging is not yet implemented')
return self._aveF2CCV
def getInterpolationMatCartMesh(self, Mrect, locType='CC', locTypeTo=None):
def getInterpolationMatCartMesh(self, Mrect, locType='CC'):
"""
Takes a cartesian mesh and returns a projection to translate onto the cartesian grid.
"""
@@ -338,22 +338,19 @@ class CylMesh(BaseTensorMesh, BaseRectangularMesh, InnerProducts, CylView):
assert self.isSymmetric, "Currently we have not taken into account other projections for more complicated CylMeshes"
if locTypeTo is None:
locTypeTo = locType
if locType == 'F':
# do this three times for each component
X = self.getInterpolationMatCartMesh(Mrect, locType='Fx', locTypeTo=locTypeTo+'x')
Y = self.getInterpolationMatCartMesh(Mrect, locType='Fy', locTypeTo=locTypeTo+'y')
Z = self.getInterpolationMatCartMesh(Mrect, locType='Fz', locTypeTo=locTypeTo+'z')
X = self.getInterpolationMatCartMesh(Mrect, locType='Fx')
Y = self.getInterpolationMatCartMesh(Mrect, locType='Fy')
Z = self.getInterpolationMatCartMesh(Mrect, locType='Fz')
return sp.vstack((X,Y,Z))
if locType == 'E':
X = self.getInterpolationMatCartMesh(Mrect, locType='Ex', locTypeTo=locTypeTo+'x')
Y = self.getInterpolationMatCartMesh(Mrect, locType='Ey', locTypeTo=locTypeTo+'y')
Z = spzeros(getattr(Mrect, 'n' + locTypeTo + 'z'), self.nE)
X = self.getInterpolationMatCartMesh(Mrect, locType='Ex')
Y = self.getInterpolationMatCartMesh(Mrect, locType='Ey')
Z = spzeros(Mrect.nEz, self.nE)
return sp.vstack((X,Y,Z))
grid = getattr(Mrect, 'grid' + locTypeTo)
grid = getattr(Mrect, 'grid' + locType)
# This is unit circle stuff, 0 to 2*pi, starting at x-axis, rotating counter clockwise in an x-y slice
theta = - np.arctan2(grid[:,0] - self.cartesianOrigin[0], grid[:,1] - self.cartesianOrigin[1]) + np.pi/2
theta[theta < 0] += np.pi*2.0
@@ -369,7 +366,7 @@ class CylMesh(BaseTensorMesh, BaseRectangularMesh, InnerProducts, CylView):
'Ex': Mrect.tangents[:Mrect.nEx,:],
'Ey': Mrect.tangents[Mrect.nEx:(Mrect.nEx+Mrect.nEy),:],
'Ez': Mrect.tangents[-Mrect.nEz:,:],
}[locTypeTo]
}[locType]
if 'F' in locType:
normals = np.c_[np.cos(theta), np.sin(theta), np.zeros(theta.size)]
proj = ( normals * dotMe ).sum(axis=1)
-60
View File
@@ -584,67 +584,7 @@ class DiffOperators(object):
return Pbc, Pin, Pout
def getBCProjWF_simple(self, discretization='CC'):
"""
The weak form boundary condition projection matrices
when mixed boundary condition is used
"""
if discretization is not 'CC':
raise NotImplementedError('Boundary conditions only implemented for CC discretization.')
def projBC(n):
ij = ([0,n], [0,1])
vals = [0,0]
vals[0] = 1
vals[1] = 1
return sp.csr_matrix((vals, ij), shape=(n+1,2))
def projDirichlet(n, bc):
bc = checkBC(bc)
ij = ([0,n], [0,1])
vals = [0,0]
if(bc[0] == 'dirichlet'):
vals[0] = -1
if(bc[1] == 'dirichlet'):
vals[1] = 1
return sp.csr_matrix((vals, ij), shape=(n+1,2))
BC = [['dirichlet','dirichlet'],['dirichlet','dirichlet'],['dirichlet','dirichlet']]
n = self.vnC
indF = self.faceBoundaryInd
if(self.dim == 1):
Pbc = projDirichlet(n[0], BC[0])
B = projBC(n[0])
indF = indF[0] | indF[1]
Pbc = Pbc*sdiag(self.area[indF])
elif(self.dim == 2):
Pbc1 = sp.kron(speye(n[1]), projDirichlet(n[0], BC[0]))
Pbc2 = sp.kron(projDirichlet(n[1], BC[1]), speye(n[0]))
Pbc = sp.block_diag((Pbc1, Pbc2), format="csr")
B1 = sp.kron(speye(n[1]), projBC(n[0]))
B2 = sp.kron(projBC(n[1]), speye(n[0]))
B = sp.block_diag((B1, B2), format="csr")
indF = np.r_[(indF[0] | indF[1]), (indF[2] | indF[3])]
Pbc = Pbc*sdiag(self.area[indF])
elif(self.dim == 3):
Pbc1 = kron3(speye(n[2]), speye(n[1]), projDirichlet(n[0], BC[0]))
Pbc2 = kron3(speye(n[2]), projDirichlet(n[1], BC[1]), speye(n[0]))
Pbc3 = kron3(projDirichlet(n[2], BC[2]), speye(n[1]), speye(n[0]))
Pbc = sp.block_diag((Pbc1, Pbc2, Pbc3), format="csr")
B1 = kron3(speye(n[2]), speye(n[1]), projBC(n[0]))
B2 = kron3(speye(n[2]), projBC(n[1]), speye(n[0]))
B3 = kron3(projBC(n[2]), speye(n[1]), speye(n[0]))
B = sp.block_diag((B1, B2, B3), format="csr")
indF = np.r_[(indF[0] | indF[1]), (indF[2] | indF[3]), (indF[4] | indF[5])]
Pbc = Pbc*sdiag(self.area[indF])
return Pbc, B.T
# --------------- Averaging ---------------------
@property
+1 -44
View File
@@ -140,6 +140,7 @@ class TensorMeshIO(object):
vtkObj.GetCellData().AddArray(vtkDoubleArr)
# Set the active scalar
vtkObj.GetCellData().SetActiveScalars(models.keys()[0])
# vtkObj.Update()
# Check the extension of the fileName
ext = os.path.splitext(fileName)[1]
@@ -156,50 +157,6 @@ class TensorMeshIO(object):
vtrWriteFilter.SetFileName(fileName)
vtrWriteFilter.Update()
def _toVTRObj(mesh,models=None):
"""
Makes and saves a VTK rectilinear file (vtr) for a simpeg Tensor mesh and model.
Input:
:param str, path to the output vtk file
:param mesh, SimPEG TensorMesh object - mesh to be transfer to VTK
:param models, dictionary of numpy.array - Name('s) and array('s). Match number of cells
"""
# Import
from vtk import vtkRectilinearGrid as rectGrid, VTK_VERSION
from vtk.util.numpy_support import numpy_to_vtk
# Deal with dimensionalities
if mesh.dim >= 1:
vX = mesh.vectorNx
xD = mesh.nNx
yD,zD = 1,1
vY, vZ = np.array([0,0])
if mesh.dim >= 2:
vY = mesh.vectorNy
yD = mesh.nNy
if mesh.dim == 3:
vZ = mesh.vectorNz
zD = mesh.nNz
# Use rectilinear VTK grid.
# Assign the spatial information.
vtkObj = rectGrid()
vtkObj.SetDimensions(xD,yD,zD)
vtkObj.SetXCoordinates(numpy_to_vtk(vX,deep=1))
vtkObj.SetYCoordinates(numpy_to_vtk(vY,deep=1))
vtkObj.SetZCoordinates(numpy_to_vtk(vZ,deep=1))
# Assign the model('s) to the object
if models is not None:
for item in models.iteritems():
# Convert numpy array
vtkDoubleArr = numpy_to_vtk(item[1],deep=1)
vtkDoubleArr.SetName(item[0])
vtkObj.GetCellData().AddArray(vtkDoubleArr)
# Set the active scalar
vtkObj.GetCellData().SetActiveScalars(models.keys()[0])
return vtkObj
def readModelUBC(mesh, fileName):
"""
+41 -79
View File
@@ -218,7 +218,7 @@ class TensorView(object):
return out
viewOpts = ['real','imag','abs','vec']
normalOpts = ['X', 'Y', 'Z']
vTypeOpts = ['CC', 'CCv','N','F','E','Fx','Fy','Fz','E','Ex','Ey','Ez']
vTypeOpts = ['CC', 'CCv','F','E','Fx','Fy','Fz','E','Ex','Ey','Ez']
# Some user error checking
assert vType in vTypeOpts, "vType must be in ['%s']" % "','".join(vTypeOpts)
@@ -552,8 +552,7 @@ class CurvView(object):
def __init__(self):
pass
def plotGrid(self, ax=None, nodes=False, faces=False, centers=False, edges=False, lines=True, showIt=False):
def plotGrid(self, length=0.05, showIt=False):
"""Plot the nodal, cell-centered and staggered grids for 1,2 and 3 dimensions.
@@ -561,63 +560,60 @@ class CurvView(object):
:include-source:
from SimPEG import Mesh, Utils
X, Y = Utils.exampleLrmGrid([3,3],'rotate')
X, Y = Utils.exampleCurvGird([3,3],'rotate')
M = Mesh.CurvilinearMesh([X, Y])
M.plotGrid(showIt=True)
"""
import matplotlib.pyplot as plt
import matplotlib
from mpl_toolkits.mplot3d import Axes3D
axOpts = {'projection':'3d'} if self.dim == 3 else {}
if ax is None: ax = plt.subplot(111, **axOpts)
NN = self.r(self.gridN, 'N', 'N', 'M')
if self.dim == 2:
fig = plt.figure(2)
fig.clf()
ax = plt.subplot(111)
X1 = np.c_[mkvc(NN[0][:-1, :]), mkvc(NN[0][1:, :]), mkvc(NN[0][:-1, :])*np.nan].flatten()
Y1 = np.c_[mkvc(NN[1][:-1, :]), mkvc(NN[1][1:, :]), mkvc(NN[1][:-1, :])*np.nan].flatten()
if lines:
X1 = np.c_[mkvc(NN[0][:-1, :]), mkvc(NN[0][1:, :]), mkvc(NN[0][:-1, :])*np.nan].flatten()
Y1 = np.c_[mkvc(NN[1][:-1, :]), mkvc(NN[1][1:, :]), mkvc(NN[1][:-1, :])*np.nan].flatten()
X2 = np.c_[mkvc(NN[0][:, :-1]), mkvc(NN[0][:, 1:]), mkvc(NN[0][:, :-1])*np.nan].flatten()
Y2 = np.c_[mkvc(NN[1][:, :-1]), mkvc(NN[1][:, 1:]), mkvc(NN[1][:, :-1])*np.nan].flatten()
X2 = np.c_[mkvc(NN[0][:, :-1]), mkvc(NN[0][:, 1:]), mkvc(NN[0][:, :-1])*np.nan].flatten()
Y2 = np.c_[mkvc(NN[1][:, :-1]), mkvc(NN[1][:, 1:]), mkvc(NN[1][:, :-1])*np.nan].flatten()
X = np.r_[X1, X2]
Y = np.r_[Y1, Y2]
X = np.r_[X1, X2]
Y = np.r_[Y1, Y2]
plt.plot(X, Y)
ax.plot(X, Y, 'b-')
if centers:
ax.plot(self.gridCC[:,0],self.gridCC[:,1],'ro')
plt.hold(True)
Nx = self.r(self.normals, 'F', 'Fx', 'V')
Ny = self.r(self.normals, 'F', 'Fy', 'V')
Tx = self.r(self.tangents, 'E', 'Ex', 'V')
Ty = self.r(self.tangents, 'E', 'Ey', 'V')
# Nx = self.r(self.normals, 'F', 'Fx', 'V')
# Ny = self.r(self.normals, 'F', 'Fy', 'V')
# Tx = self.r(self.tangents, 'E', 'Ex', 'V')
# Ty = self.r(self.tangents, 'E', 'Ey', 'V')
plt.plot(self.gridN[:, 0], self.gridN[:, 1], 'bo')
# ax.plot(self.gridN[:, 0], self.gridN[:, 1], 'bo')
nX = np.c_[self.gridFx[:, 0], self.gridFx[:, 0] + Nx[0]*length, self.gridFx[:, 0]*np.nan].flatten()
nY = np.c_[self.gridFx[:, 1], self.gridFx[:, 1] + Nx[1]*length, self.gridFx[:, 1]*np.nan].flatten()
plt.plot(self.gridFx[:, 0], self.gridFx[:, 1], 'rs')
plt.plot(nX, nY, 'r-')
# nX = np.c_[self.gridFx[:, 0], self.gridFx[:, 0] + Nx[0]*length, self.gridFx[:, 0]*np.nan].flatten()
# nY = np.c_[self.gridFx[:, 1], self.gridFx[:, 1] + Nx[1]*length, self.gridFx[:, 1]*np.nan].flatten()
# ax.plot(self.gridFx[:, 0], self.gridFx[:, 1], 'rs')
# ax.plot(nX, nY, 'r-')
nX = np.c_[self.gridFy[:, 0], self.gridFy[:, 0] + Ny[0]*length, self.gridFy[:, 0]*np.nan].flatten()
nY = np.c_[self.gridFy[:, 1], self.gridFy[:, 1] + Ny[1]*length, self.gridFy[:, 1]*np.nan].flatten()
#plt.plot(self.gridFy[:, 0], self.gridFy[:, 1], 'gs')
plt.plot(nX, nY, 'g-')
# nX = np.c_[self.gridFy[:, 0], self.gridFy[:, 0] + Ny[0]*length, self.gridFy[:, 0]*np.nan].flatten()
# nY = np.c_[self.gridFy[:, 1], self.gridFy[:, 1] + Ny[1]*length, self.gridFy[:, 1]*np.nan].flatten()
# #ax.plot(self.gridFy[:, 0], self.gridFy[:, 1], 'gs')
# ax.plot(nX, nY, 'g-')
tX = np.c_[self.gridEx[:, 0], self.gridEx[:, 0] + Tx[0]*length, self.gridEx[:, 0]*np.nan].flatten()
tY = np.c_[self.gridEx[:, 1], self.gridEx[:, 1] + Tx[1]*length, self.gridEx[:, 1]*np.nan].flatten()
plt.plot(self.gridEx[:, 0], self.gridEx[:, 1], 'r^')
plt.plot(tX, tY, 'r-')
# tX = np.c_[self.gridEx[:, 0], self.gridEx[:, 0] + Tx[0]*length, self.gridEx[:, 0]*np.nan].flatten()
# tY = np.c_[self.gridEx[:, 1], self.gridEx[:, 1] + Tx[1]*length, self.gridEx[:, 1]*np.nan].flatten()
# ax.plot(self.gridEx[:, 0], self.gridEx[:, 1], 'r^')
# ax.plot(tX, tY, 'r-')
# nX = np.c_[self.gridEy[:, 0], self.gridEy[:, 0] + Ty[0]*length, self.gridEy[:, 0]*np.nan].flatten()
# nY = np.c_[self.gridEy[:, 1], self.gridEy[:, 1] + Ty[1]*length, self.gridEy[:, 1]*np.nan].flatten()
# #ax.plot(self.gridEy[:, 0], self.gridEy[:, 1], 'g^')
# ax.plot(nX, nY, 'g-')
nX = np.c_[self.gridEy[:, 0], self.gridEy[:, 0] + Ty[0]*length, self.gridEy[:, 0]*np.nan].flatten()
nY = np.c_[self.gridEy[:, 1], self.gridEy[:, 1] + Ty[1]*length, self.gridEy[:, 1]*np.nan].flatten()
#plt.plot(self.gridEy[:, 0], self.gridEy[:, 1], 'g^')
plt.plot(nX, nY, 'g-')
plt.axis('equal')
elif self.dim == 3:
fig = plt.figure(3)
fig.clf()
ax = fig.add_subplot(111, projection='3d')
X1 = np.c_[mkvc(NN[0][:-1, :, :]), mkvc(NN[0][1:, :, :]), mkvc(NN[0][:-1, :, :])*np.nan].flatten()
Y1 = np.c_[mkvc(NN[1][:-1, :, :]), mkvc(NN[1][1:, :, :]), mkvc(NN[1][:-1, :, :])*np.nan].flatten()
Z1 = np.c_[mkvc(NN[2][:-1, :, :]), mkvc(NN[2][1:, :, :]), mkvc(NN[2][:-1, :, :])*np.nan].flatten()
@@ -634,50 +630,16 @@ class CurvView(object):
Y = np.r_[Y1, Y2, Y3]
Z = np.r_[Z1, Z2, Z3]
ax.plot(X, Y, 'b', zs=Z)
plt.plot(X, Y, 'b', zs=Z)
ax.set_zlabel('x3')
ax.grid(True)
ax.hold(False)
ax.set_xlabel('x1')
ax.set_ylabel('x2')
if showIt: plt.show()
def plotImage(self, I, ax=None, showIt=False, grid=False, clim=None):
if self.dim == 3: raise NotImplementedError('This is not yet done!')
import matplotlib.pyplot as plt
import matplotlib
from mpl_toolkits.mplot3d import Axes3D
import matplotlib.colors as colors
import matplotlib.cm as cmx
if ax is None: ax = plt.subplot(111)
jet = cm = plt.get_cmap('jet')
cNorm = colors.Normalize(
vmin=I.min() if clim is None else clim[0],
vmax=I.max() if clim is None else clim[1])
scalarMap = cmx.ScalarMappable(norm=cNorm, cmap=jet)
# ax.set_xlim((self.x0[0], self.h[0].sum()))
# ax.set_ylim((self.x0[1], self.h[1].sum()))
Nx = self.r(self.gridN[:,0],'N','N','M')
Ny = self.r(self.gridN[:,1],'N','N','M')
cell = self.r(I,'CC','CC','M')
for ii in range(self.nCx):
for jj in range(self.nCy):
I = [ii,ii+1,ii+1,ii]
J = [jj,jj,jj+1,jj+1]
ax.add_patch(plt.Polygon(np.c_[Nx[I,J],Ny[I,J]], facecolor=scalarMap.to_rgba(cell[ii,jj]), edgecolor='k' if grid else 'none'))
scalarMap._A = [] # http://stackoverflow.com/questions/8342549/matplotlib-add-colorbar-to-a-sequence-of-line-plots
ax.set_xlabel('x')
ax.set_ylabel('y')
if showIt: plt.show()
return [scalarMap]
if __name__ == '__main__':
from SimPEG import *
-560
View File
@@ -1,560 +0,0 @@
from SimPEG.EM.Utils.EMUtils import omega, mu_0
from SimPEG import SolverLU as SimpegSolver, PropMaps, Utils, mkvc, sp, np
from SimPEG.EM.FDEM.ProblemFDEM import BaseFDEMProblem
from SurveyNSEM import Survey, Data
from FieldsNSEM import BaseNSEMFields, Fields1D_ePrimSec, Fields3D_ePrimSec
from SimPEG.NSEM.Utils.MT1Danalytic import getEHfields
import time, sys
class BaseNSEMProblem(BaseFDEMProblem):
"""
Base class for all Natural source problems.
"""
def __init__(self, mesh, **kwargs):
BaseFDEMProblem.__init__(self, mesh, **kwargs)
Utils.setKwargs(self, **kwargs)
# Set the default pairs of the problem
surveyPair = Survey
dataPair = Data
fieldsPair = BaseNSEMFields
# Set the solver
Solver = SimpegSolver
solverOpts = {}
verbose = False
# Notes:
# Use the forward and devs from BaseFDEMProblem
# Might need to add more stuff here.
## NEED to clean up the Jvec and Jtvec to use Zero and Identities for None components.
def Jvec(self, m, v, f=None):
"""
Function to calculate the data sensitivities dD/dm times a vector.
:param numpy.ndarray m (nC, 1) - conductive model
:param numpy.ndarray v (nC, 1) - random vector
:param NSEMfields object (optional) - NSEM fields object, if not given it is calculated
:rtype: NSEMdata object
:return: Data sensitivities wrt m
"""
# Calculate the fields
if f is None:
f= self.fields(m)
# Set current model
self.curModel = m
# Initiate the Jv object
Jv = self.dataPair(self.survey)
# Loop all the frequenies
for freq in self.survey.freqs:
dA_du = self.getA(freq) #
dA_duI = self.Solver(dA_du, **self.solverOpts)
for src in self.survey.getSrcByFreq(freq):
# We need fDeriv_m = df/du*du/dm + df/dm
# Construct du/dm, it requires a solve
# NOTE: need to account for the 2 polarizations in the derivatives.
u_src = f[src,:] # u should be a vector by definition. Need to fix this...
# dA_dm and dRHS_dm should be of size nE,2, so that we can multiply by dA_duI. The 2 columns are each of the polarizations.
dA_dm = self.getADeriv_m(freq, u_src, v) # Size: nE,2 (u_px,u_py) in the columns.
dRHS_dm = self.getRHSDeriv_m(freq, v) # Size: nE,2 (u_px,u_py) in the columns.
if dRHS_dm is None:
du_dm = dA_duI * ( -dA_dm )
else:
du_dm = dA_duI * ( -dA_dm + dRHS_dm )
# Calculate the projection derivatives
for rx in src.rxList:
# Get the projection derivative
# v should be of size 2*nE (for 2 polarizations)
PDeriv_u = lambda t: rx.evalDeriv(src, self.mesh, f, t) # wrt u, we don't have have PDeriv wrt m
Jv[src, rx] = PDeriv_u(mkvc(du_dm))
dA_duI.clean()
# Return the vectorized sensitivities
return mkvc(Jv)
def Jtvec(self, m, v, f=None):
"""
Function to calculate the transpose of the data sensitivities (dD/dm)^T times a vector.
:param numpy.ndarray m (nC, 1) - conductive model
:param numpy.ndarray v (nD, 1) - vector
:param NSEMfields object f (optional) - NSEM fields object, if not given it is calculated
:rtype: NSEMdata object
:return: Data sensitivities wrt m
"""
if f is None:
f = self.fields(m)
self.curModel = m
# Ensure v is a data object.
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
Jtv = np.zeros(m.size)
for freq in self.survey.freqs:
AT = self.getA(freq).T
ATinv = self.Solver(AT, **self.solverOpts)
for src in self.survey.getSrcByFreq(freq):
ftype = self._solutionType
f_src = f[src, :] # Need to fix this...
for rx in src.rxList:
# Get the adjoint evalDeriv
# PTv needs to be nE,
PTv = rx.evalDeriv(src, self.mesh, f, mkvc(v[src, rx],2), adjoint=True) # wrt u, need possibility wrt m
# Get the
dA_duIT = ATinv * PTv
dA_dmT = self.getADeriv_m(freq, f_src, mkvc(dA_duIT), adjoint=True)
dRHS_dmT = self.getRHSDeriv_m(freq, mkvc(dA_duIT), adjoint=True)
# Make du_dmT
if dRHS_dmT is None:
du_dmT = -dA_dmT
else:
du_dmT = -dA_dmT + dRHS_dmT
# Select the correct component
# du_dmT needs to be of size nC,
real_or_imag = rx.projComp
if real_or_imag == 'real':
Jtv += du_dmT.real
elif real_or_imag == 'imag':
Jtv += -du_dmT.real
else:
raise Exception('Must be real or imag')
# Clean the factorization, clear memory.
ATinv.clean()
return Jtv
###################################
## 1D problems
###################################
class Problem1D_ePrimSec(BaseNSEMProblem):
"""
A NSEM problem soving a e formulation and primary/secondary fields decomposion.
By eliminating the magnetic flux density using
.. math ::
\mathbf{b} = \\frac{1}{i \omega}\\left(-\mathbf{C} \mathbf{e} \\right)
we can write Maxwell's equations as a second order system in \\\(\\\mathbf{e}\\\) only:
.. math ::
\\left(\mathbf{C}^T \mathbf{M^e_{\mu^{-1}}} \mathbf{C} + i \omega \mathbf{M^f_\sigma}] \mathbf{e}_{s} =& i \omega \mathbf{M^f_{\delta \sigma}} \mathbf{e}_{p}
which we solve for \\\(\\\mathbf{e_s}\\\). The total field \\\mathbf{e}\\ = \\\mathbf{e_p}\\ + \\\mathbf{e_s}\\.
The primary field is estimated from a background model (commonly half space ).
"""
# From FDEMproblem: Used to project the fields. Currently not used for NSEMproblem.
_solutionType = 'e_1dSolution'
_formulation = 'EF'
fieldsPair = Fields1D_ePrimSec
# Initiate properties
_sigmaPrimary = None
def __init__(self, mesh, **kwargs):
BaseNSEMProblem.__init__(self, mesh, **kwargs)
# self._sigmaPrimary = sigmaPrimary
@property
def MeMui(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MeMui', None) is None:
self._MeMui = self.mesh.getEdgeInnerProduct(1.0/mu_0)
return self._MeMui
@property
def MfSigma(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MfSigma', None) is None:
self._MfSigma = self.mesh.getFaceInnerProduct(self.curModel.sigma)
return self._MfSigma
@property
def sigmaPrimary(self):
"""
A background model, use for the calculation of the primary fields.
"""
return self._sigmaPrimary
@sigmaPrimary.setter
def sigmaPrimary(self, val):
# Note: TODO add logic for val, make sure it is the correct size.
self._sigmaPrimary = val
def getA(self, freq):
"""
Function to get the A matrix.
:param float freq: Frequency
:rtype: scipy.sparse.csr_matrix
:return: A
"""
# Note: need to use the code above since in the 1D problem I want
# e to live on Faces(nodes) and h on edges(cells). Might need to rethink this
# Possible that _fieldType and _eqLocs can fix this
MeMui = self.MeMui
MfSigma = self.MfSigma
C = self.mesh.nodalGrad
# Make A
A = C.T*MeMui*C + 1j*omega(freq)*MfSigma
# Either return full or only the inner part of A
return A
def getADeriv_m(self, freq, u, v, adjoint=False):
"""
The derivative of A wrt sigma
"""
dsig_dm = self.curModel.sigmaDeriv
MeMui = self.MeMui
#
u_src = u['e_1dSolution']
dMfSigma_dm = self.mesh.getFaceInnerProductDeriv(self.curModel.sigma)(u_src) * self.curModel.sigmaDeriv
if adjoint:
return 1j * omega(freq) * ( dMfSigma_dm.T * v )
# Note: output has to be nN/nF, not nC/nE.
# v should be nC
return 1j * omega(freq) * ( dMfSigma_dm * v )
def getRHS(self, freq):
"""
Function to return the right hand side for the system.
:param float freq: Frequency
:rtype: numpy.ndarray (nF, 1), numpy.ndarray (nF, 1)
:return: RHS for 1 polarizations, primary fields
"""
# Get sources for the frequncy(polarizations)
Src = self.survey.getSrcByFreq(freq)[0]
S_e = Src.S_e(self)
return -1j * omega(freq) * S_e
def getRHSDeriv_m(self, freq, v, adjoint=False):
"""
The derivative of the RHS wrt sigma
"""
Src = self.survey.getSrcByFreq(freq)[0]
S_eDeriv = Src.S_eDeriv_m(self, v, adjoint)
return -1j * omega(freq) * S_eDeriv
def fields(self, m):
'''
Function to calculate all the fields for the model m.
:param np.ndarray (nC,) m: Conductivity model
'''
# Set the current model
self.curModel = m
# Make the fields object
F = self.fieldsPair(self.mesh, self.survey)
# Loop over the frequencies
for freq in self.survey.freqs:
if self.verbose:
startTime = time.time()
print 'Starting work for {:.3e}'.format(freq)
sys.stdout.flush()
A = self.getA(freq)
rhs = self.getRHS(freq)
Ainv = self.Solver(A, **self.solverOpts)
e_s = Ainv * rhs
# Store the fields
Src = self.survey.getSrcByFreq(freq)[0]
# NOTE: only store the e_solution(secondary), all other components calculated in the fields object
F[Src, 'e_1dSolution'] = e_s[:,-1] # Only storing the yx polarization as 1d
# Note curl e = -iwb so b = -curl e /iw
# b = -( self.mesh.nodalGrad * e )/( 1j*omega(freq) )
# F[Src, 'b_1d'] = b[:,1]
if self.verbose:
print 'Ran for {:f} seconds'.format(time.time()-startTime)
sys.stdout.flush()
return F
# Note this is not fully functional.
# Missing:
# Fields class corresponding to the fields
# Update Jvec and Jtvec to include all the derivatives components
# Other things ...
class Problem1D_eTotal(BaseNSEMProblem):
"""
A NSEM problem solving a e formulation and a Total bondary domain decompostion.
Solves the equation:
Math:
Have to do this...
Not implement correctly.......
"""
# From FDEMproblem: Used to project the fields. Currently not used for NSEMproblem.
_solutionType = 'e_1dSolution'
_formulation = 'EF'
# fieldsPair = Fields1D_eTotal
def __init__(self, mesh, **kwargs):
BaseNSEMProblem.__init__(self, mesh, **kwargs)
@property
def MeMui(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MeMui', None) is None:
self._MeMui = self.mesh.getEdgeInnerProduct(1.0/mu_0)
return self._MeMui
@property
def MfSigma(self):
"""
Edge inner product matrix
"""
if getattr(self, '_MfSigma', None) is None:
self._MfSigma = self.mesh.getFaceInnerProduct(self.curModel.sigma)
return self._MfSigma
def getA(self, freq, full=False):
"""
Function to get the A matrix.
:param float freq: Frequency
:param logic full: Return full A or the inner part
:rtype: scipy.sparse.csr_matrix
:return: A
"""
MeMui = self.MeMui
MfSigma = self.MfSigma
# Note: need to use the code above since in the 1D problem I want
# e to live on Faces(nodes) and h on edges(cells). Might need to rethink this
# Possible that _fieldType and _eqLocs can fix this
# MeMui = self.MfMui
# MfSigma = self.MfSigma
C = self.mesh.nodalGrad
# Make A
A = C.T*MeMui*C + 1j*omega(freq)*MfSigma
# Either return full or only the inner part of A
if full:
return A
else:
return A[1:-1,1:-1]
def getADeriv_m(self, freq, u, v, adjoint=False):
raise NotImplementedError('getADeriv is not implemented')
def getRHS(self, freq):
"""
Function to return the right hand side for the system.
:param float freq: Frequency
:rtype: numpy.ndarray (nE, 2), numpy.ndarray (nE, 2)
:return: RHS for both polarizations, primary fields
"""
# Get sources for the frequency
# NOTE: Need to use the source information, doesn't really apply in 1D
src = self.survey.getSrcByFreq(freq)
# Get the full A
A = self.getA(freq,full=True)
# Define the outer part of the solution matrix
Aio = A[1:-1,[0,-1]]
Ed, Eu, Hd, Hu = getEHfields(self.mesh,self.curModel.sigma,freq,self.mesh.vectorNx)
Etot = (Ed + Eu)
sourceAmp = 1.0
Etot = ((Etot/Etot[-1])*sourceAmp) # Scale the fields to be equal to sourceAmp at the top
## Note: The analytic solution is derived with e^iwt
eBC = np.r_[Etot[0],Etot[-1]]
# The right hand side
return -Aio*eBC, eBC
def getRHSderiv_m(self, freq, backSigma, u, v, adjoint=False):
raise NotImplementedError('getRHSDeriv not implemented yet')
return None
def fields(self, m):
'''
Function to calculate all the fields for the model m.
:param np.ndarray (nC,) m: Conductivity model
:param np.ndarray (nC,) m_back: Background conductivity model
'''
self.curModel = m
# RHS, CalcFields = self.getRHS(freq,m_back), self.calcFields
F = Fields1D_eTotal(self.mesh, self.survey)
for freq in self.survey.freqs:
if self.verbose:
startTime = time.time()
print 'Starting work for {:.3e}'.format(freq)
sys.stdout.flush()
A = self.getA(freq)
rhs, e_o = self.getRHS(freq)
Ainv = self.Solver(A, **self.solverOpts)
e_i = Ainv * rhs
e = mkvc(np.r_[e_o[0], e_i, e_o[1]],2)
# Store the fields
Src = self.survey.getSrcByFreq(freq)
# NOTE: only store e fields
F[Src, 'e_1dSolution'] = e[:,0]
if self.verbose:
print 'Ran for {:f} seconds'.format(time.time()-startTime)
sys.stdout.flush()
return F
###################################
## 3D problems
###################################
class Problem3D_ePrimSec(BaseNSEMProblem):
"""
A NSEM problem solving a e formulation and a primary/secondary fields decompostion.
By eliminating the magnetic flux density using
.. math ::
\mathbf{b} = \\frac{1}{i \omega}\\left(-\mathbf{C} \mathbf{e} \\right)
we can write Maxwell's equations as a second order system in \\\(\\\mathbf{e}\\\) only:
.. math ::
\\left(\mathbf{C}^T \mathbf{M^f_{\mu^{-1}}} \mathbf{C} + i \omega \mathbf{M^e_\sigma}] \mathbf{e}_{s} =& i \omega \mathbf{M^e_{\delta \sigma}} \mathbf{e}_{p}
which we solve for \\\(\\\mathbf{e_s}\\\). The total field \\\mathbf{e}\\ = \\\mathbf{e_p}\\ + \\\mathbf{e_s}\\.
The primary field is estimated from a background model (commonly as a 1D model).
"""
# From FDEMproblem: Used to project the fields. Currently not used for NSEMproblem.
_solutionType = [ 'e_pxSolution', 'e_pySolution'] # Forces order on the object
_formulation = 'EB'
fieldsPair = Fields3D_ePrimSec
# Initiate properties
_sigmaPrimary = None
def __init__(self, mesh, **kwargs):
BaseNSEMProblem.__init__(self, mesh, **kwargs)
@property
def sigmaPrimary(self):
"""
A background model, use for the calculation of the primary fields.
"""
return self._sigmaPrimary
@sigmaPrimary.setter
def sigmaPrimary(self, val):
# Note: TODO add logic for val, make sure it is the correct size.
self._sigmaPrimary = val
def getA(self, freq):
"""
Function to get the A system.
:param float freq: Frequency
:rtype: scipy.sparse.csr_matrix
:return: A
"""
Mmui = self.MfMui
Msig = self.MeSigma
C = self.mesh.edgeCurl
return C.T*Mmui*C + 1j*omega(freq)*Msig
def getADeriv_m(self, freq, u, v, adjoint=False):
"""
Calculate the derivative of A wrt m.
"""
# Fix u to be a matrix nE,2
# This considers both polarizations and returns a nE,2 matrix for each polarization
if adjoint:
dMe_dsigV = sp.hstack(( self.MeSigmaDeriv( u['e_pxSolution'] ).T, self.MeSigmaDeriv(u['e_pySolution'] ).T ))*v
else:
# Need a nE,2 matrix to be returned
dMe_dsigV = np.hstack(( mkvc(self.MeSigmaDeriv( u['e_pxSolution'] )*v,2), mkvc( self.MeSigmaDeriv(u['e_pySolution'] )*v,2) ))
return 1j * omega(freq) * dMe_dsigV
def getRHS(self, freq):
"""
Function to return the right hand side for the system.
:param float freq: Frequency
:rtype: numpy.ndarray (nE, 2), numpy.ndarray (nE, 2)
:return: RHS for both polarizations, primary fields
"""
# Get sources for the frequncy(polarizations)
Src = self.survey.getSrcByFreq(freq)[0]
S_e = Src.S_e(self)
return -1j * omega(freq) * S_e
def getRHSDeriv_m(self, freq, v, adjoint=False):
"""
The derivative of the RHS with respect to sigma
"""
Src = self.survey.getSrcByFreq(freq)[0]
S_eDeriv = Src.S_eDeriv_m(self, v, adjoint)
return -1j * omega(freq) * S_eDeriv
def fields(self, m):
'''
Function to calculate all the fields for the model m.
:param np.ndarray (nC,) m: Conductivity model
'''
# Set the current model
self.curModel = m
F = self.fieldsPair(self.mesh, self.survey)
for freq in self.survey.freqs:
if self.verbose:
startTime = time.time()
print 'Starting work for {:.3e}'.format(freq)
sys.stdout.flush()
A = self.getA(freq)
rhs = self.getRHS(freq)
# Solve the system
Ainv = self.Solver(A, **self.solverOpts)
e_s = Ainv * rhs
# Store the fields
Src = self.survey.getSrcByFreq(freq)[0]
# Store the fields
# Use self._solutionType
F[Src, 'e_pxSolution'] = e_s[:,0]
F[Src, 'e_pySolution'] = e_s[:,1]
# Note curl e = -iwb so b = -curl/iw
if self.verbose:
print 'Ran for {:f} seconds'.format(time.time()-startTime)
sys.stdout.flush()
Ainv.clean()
return F
-5
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@@ -1,5 +0,0 @@
from MT1Dsolutions import get1DEfields # Add the names of the functions
from MT1Danalytic import getEHfields, getImpedance
from dataUtils import *
from ediFilesUtils import *
from testUtils import *
-198
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@@ -1,198 +0,0 @@
import unittest
import sys
from scipy.constants import mu_0
import SimPEG as simpeg
from SimPEG.Utils import meshTensor
import numpy as np
np.random.seed(1100)
# Define the tolerances
TOLr = 5e-2
TOLp = 5e-2
def getAppResPhs(NSEMdata):
# Make impedance
from SimPEG.NSEM.Utils import appResPhs
zList = []
for src in NSEMdata.survey.srcList:
zc = [src.freq]
for rx in src.rxList:
if 'i' in rx.rxType:
m=1j
else:
m = 1
zc.append(m*NSEMdata[src,rx])
zList.append(zc)
return [appResPhs(zList[i][0],np.sum(zList[i][1:3])) for i in np.arange(len(zList))]
def setup1DSurvey(sigmaHalf,tD=True,structure=False):
from SimPEG import NSEM
# Frequency
nFreq = 33
freqs = np.logspace(3,-3,nFreq)
# Make the mesh
ct = 5
air = meshTensor([(ct,25,1.3)])
# coreT0 = meshTensor([(ct,15,1.2)])
# coreT1 = np.kron(meshTensor([(coreT0[-1],15,1.3)]),np.ones((7,)))
core = np.concatenate( ( np.kron(meshTensor([(ct,15,-1.2)]),np.ones((10,))) , meshTensor([(ct,20)]) ) )
bot = meshTensor([(core[0],20,-1.3)])
x0 = -np.array([np.sum(np.concatenate((core,bot)))])
m1d = simpeg.Mesh.TensorMesh([np.concatenate((bot,core,air))], x0=x0)
# Make the model
sigma = np.zeros(m1d.nC) + sigmaHalf
sigma[m1d.gridCC > 0 ] = 1e-8
sigmaBack = sigma.copy()
# Add structure
if structure:
shallow = (m1d.gridCC < -200) * (m1d.gridCC > -600)
deep = (m1d.gridCC < -3000) * (m1d.gridCC > -5000)
sigma[shallow] = 1
sigma[deep] = 0.1
rxList = []
for rxType in ['z1dr','z1di']:
rxList.append(NSEM.Rx(simpeg.mkvc(np.array([0.0]),2).T,rxType))
# Source list
srcList =[]
if tD:
for freq in freqs:
srcList.append(NSEM.SrcNSEM.polxy_1DhomotD(rxList,freq))
else:
for freq in freqs:
srcList.append(NSEM.SrcNSEM.polxy_1Dprimary(rxList,freq))
survey = NSEM.Survey(srcList)
return survey, sigma, m1d
def setupSimpegNSEM_ePrimSec(inputSetup,comp='Imp',singleFreq=False,expMap=True):
from SimPEG import NSEM
M,freqs,sig,sigBG,rx_loc = inputSetup
# Make a receiver list
rxList = []
if comp == 'All':
for rxType in ['zxxr','zxxi','zxyr','zxyi','zyxr','zyxi','zyyr','zyyi','tzxr','tzxi','tzyr','tzyi']:
rxList.append(NSEM.Rx(rx_loc,rxType))
elif comp == 'Imp':
for rxType in ['zxxr','zxxi','zxyr','zxyi','zyxr','zyxi','zyyr','zyyi']:
rxList.append(NSEM.Rx(rx_loc,rxType))
elif comp == 'Tip':
for rxType in ['tzxr','tzxi','tzyr','tzyi']:
rxList.append(NSEM.Rx(rx_loc,rxType))
else:
rxList.append(NSEM.Rx(rx_loc,comp))
# Source list
srcList =[]
if singleFreq:
srcList.append(NSEM.SrcNSEM.polxy_1Dprimary(rxList,singleFreq))
else:
for freq in freqs:
srcList.append(NSEM.SrcNSEM.polxy_1Dprimary(rxList,freq))
# Survey NSEM
survey = NSEM.Survey(srcList)
## Setup the problem object
sigma1d = M.r(sigBG,'CC','CC','M')[0,0,:]
if expMap:
problem = NSEM.Problem3D_ePrimSec(M,sigmaPrimary= np.log(sigma1d) )
problem.mapping = simpeg.Maps.ExpMap(problem.mesh)
problem.curModel = np.log(sig)
else:
problem = NSEM.Problem3D_ePrimSec(M,sigmaPrimary= sigma1d)
problem.curModel = sig
problem.pair(survey)
problem.verbose = False
try:
from pymatsolver import MumpsSolver
problem.Solver = MumpsSolver
except:
pass
return (survey, problem)
def getInputs():
"""
Function that returns Mesh, freqs, rx_loc, elev.
"""
# Make a mesh
# M = simpeg.Mesh.TensorMesh([[(100,5,-1.5),(100.,10),(100,5,1.5)],[(100,5,-1.5),(100.,10),(100,5,1.5)],[(100,5,1.6),(100.,10),(100,3,2)]], x0=['C','C',-3529.5360])
# M = simpeg.Mesh.TensorMesh([[(1000,6,-1.5),(1000.,6),(1000,6,1.5)],[(1000,6,-1.5),(1000.,2),(1000,6,1.5)],[(1000,6,-1.3),(1000.,6),(1000,6,1.3)]], x0=['C','C','C'])# Setup the model
M = simpeg.Mesh.TensorMesh([[(200,6,-1.5),(200.,4),(200,6,1.5)],[(200,6,-1.5),(200.,4),(200,6,1.5)],[(200,8,-1.5),(200.,8),(200,8,1.5)]], x0=['C','C','C'])# Setup the model
# Set the frequencies
freqs = np.logspace(1,-3,5)
elev = 0
## Setup the the survey object
# Receiver locations
rx_x, rx_y = np.meshgrid(np.arange(-350,350,200),np.arange(-350,350,200))
rx_loc = np.hstack((simpeg.Utils.mkvc(rx_x,2),simpeg.Utils.mkvc(rx_y,2),elev+np.zeros((np.prod(rx_x.shape),1))))
return M, freqs, rx_loc, elev
def random(conds):
''' Returns a halfspace model based on the inputs'''
M, freqs, rx_loc, elev = getInputs()
# Backround
sigBG = np.ones(M.nC)*conds
# Add randomness to the model (10% of the value).
sig = np.exp( np.log(sigBG) + np.random.randn(M.nC)*(conds)*1e-1 )
return (M, freqs, sig, sigBG, rx_loc)
def halfSpace(conds):
''' Returns a halfspace model based on the inputs'''
M, freqs, rx_loc, elev = getInputs()
# Model
ccM = M.gridCC
# conds = [1e-2]
groundInd = ccM[:,2] < elev
sig = np.zeros(M.nC) + 1e-8
sig[groundInd] = conds
# Set the background, not the same as the model
sigBG = np.zeros(M.nC) + 1e-8
sigBG[groundInd] = conds
return (M, freqs, sig, sigBG, rx_loc)
def blockInhalfSpace(conds):
''' Returns a halfspace model based on the inputs'''
M, freqs, rx_loc, elev = getInputs()
# Model
ccM = M.gridCC
# conds = [1e-2]
groundInd = ccM[:,2] < elev
sig = simpeg.Utils.ModelBuilder.defineBlock(M.gridCC,np.array([-1000,-1000,-1500]),np.array([1000,1000,-1000]),conds)
sig[~groundInd] = 1e-8
# Set the background, not the same as the model
sigBG = np.zeros(M.nC) + 1e-8
sigBG[groundInd] = conds[1]
return (M, freqs, sig, sigBG, rx_loc)
def twoLayer(conds):
''' Returns a 2 layer model based on the conductivity values given'''
M, freqs, rx_loc, elev = getInputs()
# Model
ccM = M.gridCC
groundInd = ccM[:,2] < elev
botInd = ccM[:,2] < -3000
sig = np.zeros(M.nC) + 1e-8
sig[groundInd] = conds[1]
sig[botInd] = conds[0]
# Set the background, not the same as the model
sigBG = np.zeros(M.nC) + 1e-8
sigBG[groundInd] = conds[1]
return (M, freqs, sig, sigBG, rx_loc)
-5
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@@ -1,5 +0,0 @@
import Utils
from SurveyNSEM import Rx, Survey, Data
from FieldsNSEM import Fields1D_ePrimSec, Fields3D_ePrimSec
from ProblemNSEM import Problem1D_ePrimSec, Problem3D_ePrimSec
import SrcNSEM
+1 -1
View File
@@ -1008,4 +1008,4 @@ class ProjectedGNCG(BFGS, Minimize, Remember):
indx = ((self.xc<=self.lower) & (delx < 0)) | ((self.xc>=self.upper) & (delx > 0))
delx[indx] = 0.
return delx
return delx
+2 -2
View File
@@ -74,7 +74,7 @@ class Property(object):
if linkedMap is None:
return None
linkMap = linkMapClass(None) * linkedMap
m = getattr(self, '%sModel'%linkName)
m = getattr(self, '%s'%linkName)
return linkMap.deriv( m )
m = getattr(self, '%sModel'%prop.name)
@@ -239,7 +239,7 @@ class PropMap(object):
setattr(self, '%sMap'%name, mapping)
setattr(self, '%sIndex'%name, slices.get(name, slice(nP, nP + mapping.nP)))
nP += mapping.nP
self.nP = nP
self.nP = nP
@property
def defaultInvProp(self):
+181 -442
View File
@@ -1,6 +1,4 @@
import Utils, Maps, Mesh
import numpy as np
import scipy.sparse as sp
import Utils, Maps, Mesh, numpy as np, scipy.sparse as sp
class RegularizationMesh(object):
"""
@@ -313,9 +311,6 @@ class BaseRegularization(object):
tmp = indActive
indActive = np.zeros(mesh.nC, dtype=bool)
indActive[tmp] = True
if indActive is not None and mapping is None:
mapping = Maps.IdentityMap(nP=indActive.nonzero()[0].size)
self.regmesh = RegularizationMesh(mesh,indActive)
self.mapping = mapping or self.mapPair(mesh)
self.mapping._assertMatchesPair(self.mapPair)
@@ -405,238 +400,7 @@ class BaseRegularization(object):
return mD.T * ( self.W.T * ( self.W * ( mD * v) ) )
class Simple(BaseRegularization):
"""
Simple regularization that does not include length scales in the derivatives.
"""
mrefInSmooth = False #: include mref in the smoothness?
alpha_s = Utils.dependentProperty('_alpha_s', 1.0, ['_W', '_Wsmall'], "Smallness weight")
alpha_x = Utils.dependentProperty('_alpha_x', 1.0, ['_W', '_Wx'], "Weight for the first derivative in the x direction")
alpha_y = Utils.dependentProperty('_alpha_y', 1.0, ['_W', '_Wy'], "Weight for the first derivative in the y direction")
alpha_z = Utils.dependentProperty('_alpha_z', 1.0, ['_W', '_Wz'], "Weight for the first derivative in the z direction")
cell_weights = 1.
def __init__(self, mesh, mapping=None, indActive=None, **kwargs):
BaseRegularization.__init__(self, mesh, mapping=mapping, indActive=indActive, **kwargs)
if isinstance(self.cell_weights,float):
self.cell_weights = np.ones(self.regmesh.nC) * self.cell_weights
@property
def Wsmall(self):
"""Regularization matrix Wsmall"""
if getattr(self,'_Wsmall', None) is None:
self._Wsmall = Utils.sdiag((self.alpha_s*self.cell_weights)**0.5)
return self._Wsmall
@property
def Wx(self):
"""Regularization matrix Wx"""
if getattr(self, '_Wx', None) is None:
self._Wx = Utils.sdiag((self.alpha_x * (self.regmesh.aveCC2Fx*self.cell_weights))**0.5)*self.regmesh.cellDiffxStencil
return self._Wx
@property
def Wy(self):
"""Regularization matrix Wy"""
if getattr(self, '_Wy', None) is None:
self._Wy = Utils.sdiag((self.alpha_y * (self.regmesh.aveCC2Fy*self.cell_weights))**0.5)*self.regmesh.cellDiffyStencil
return self._Wy
@property
def Wz(self):
"""Regularization matrix Wz"""
if getattr(self, '_Wz', None) is None:
self._Wz = Utils.sdiag((self.alpha_z * (self.regmesh.aveCC2Fz*self.cell_weights))**0.5)*self.regmesh.cellDiffzStencil
return self._Wz
# @property
# def Wsmooth(self):
# """Full smoothness regularization matrix W"""
# print 'wtf why are we using Wsmooth'
# raise NotImplementedError
# if getattr(self, '_Wsmooth', None) is None:
# wlist = (self.Wx,)
# if self.regmesh.dim > 1:
# wlist += (self.Wy,)
# if self.regmesh.dim > 2:
# wlist += (self.Wz,)
# self._Wsmooth = sp.vstack(wlist)
# return self._Wsmooth
#
# @property
# def W(self):
# """Full regularization matrix W"""
# print 'wtf why are we using W'
# if getattr(self, '_W', None) is None:
# wlist = (self.Wsmall, self.Wx)
# if self.regmesh.dim > 1:
# wlist += (self.Wy,)
# if self.regmesh.dim > 2:
# wlist += (self.Wz,)
# self._W = sp.vstack(wlist)
# return self._W
@Utils.timeIt
def _evalSmall(self, m):
r = self.Wsmall * ( self.mapping * (m - self.mref) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmallDeriv(self, m):
r = self.Wsmall * ( self.mapping * (m - self.mref) )
return r.T * ( self.Wsmall * self.mapping.deriv(m - self.mref) )
@Utils.timeIt
def _evalSmall2Deriv(self, m, v = None):
rDeriv = self.Wsmall * ( self.mapping.deriv(m - self.mref) )
if v is not None:
return rDeriv.T * (rDeriv * v)
return rDeriv.T * rDeriv
@Utils.timeIt
def _evalSmoothx(self, m):
if self.mrefInSmooth == True:
r = self.Wx * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wx * ( self.mapping * (m) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmoothy(self, m):
if self.mrefInSmooth == True:
r = self.Wy * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wy * ( self.mapping * (m) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmoothz(self, m):
if self.mrefInSmooth == True:
r = self.Wz * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wz * ( self.mapping * (m) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmooth(self, m):
phiSmooth = self._evalSmoothx(m)
if self.regmesh.dim > 1:
phiSmooth += self._evalSmoothy(m)
if self.regmesh.dim > 2:
phiSmooth += self._evalSmoothz(m)
return phiSmooth
@Utils.timeIt
def _evalSmoothxDeriv(self, m):
if self.mrefInSmooth == True:
r = self.Wx * ( self.mapping * ( m - self.mref ) )
return r.T * ( self.Wx * self.mapping.deriv(m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wx * ( self.mapping * m )
return r.T * ( self.Wx * self.mapping.deriv(m) )
@Utils.timeIt
def _evalSmoothx2Deriv(self, m, v=None):
if self.mrefInSmooth == True:
rDeriv = self.Wx * ( self.mapping.deriv( m - self.mref ) )
elif self.mrefInSmooth == False:
rDeriv = self.Wx * ( self.mapping.deriv(m) )
if v is not None:
return rDeriv.T * ( rDeriv * v )
return rDeriv.T * rDeriv
@Utils.timeIt
def _evalSmoothyDeriv(self, m):
if self.mrefInSmooth == True:
r = self.Wy * ( self.mapping * ( m - self.mref ) )
return r.T * ( self.Wy * self.mapping.deriv(m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wy * ( self.mapping * m )
return r.T * ( self.Wy * self.mapping.deriv(m) )
@Utils.timeIt
def _evalSmoothy2Deriv(self, m, v=None):
if self.mrefInSmooth == True:
rDeriv = self.Wy * ( self.mapping.deriv( m - self.mref ) )
elif self.mrefInSmooth == False:
rDeriv = self.Wy * ( self.mapping.deriv(m) )
if v is not None:
return rDeriv.T * ( rDeriv * v )
return rDeriv.T * rDeriv
@Utils.timeIt
def _evalSmoothzDeriv(self, m):
if self.mrefInSmooth == True:
r = self.Wz * ( self.mapping * ( m - self.mref ) )
return r.T * ( self.Wz * self.mapping.deriv(m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wz * ( self.mapping * m )
return r.T * ( self.Wz * self.mapping.deriv(m) )
@Utils.timeIt
def _evalSmoothz2Deriv(self, m, v=None):
if self.mrefInSmooth == True:
rDeriv = self.Wz * ( self.mapping.deriv( m - self.mref ) )
elif self.mrefInSmooth == False:
rDeriv = self.Wz * ( self.mapping.deriv(m) )
if v is not None:
return rDeriv.T * ( rDeriv * v )
return rDeriv.T * rDeriv
@Utils.timeIt
def _evalSmoothDeriv(self, m):
deriv = self._evalSmoothxDeriv(m)
if self.regmesh.dim > 1:
deriv += self._evalSmoothyDeriv(m)
if self.regmesh.dim > 2:
deriv += self._evalSmoothzDeriv(m)
return deriv
@Utils.timeIt
def _evalSmooth2Deriv(self, m, v=None):
deriv = self._evalSmoothx2Deriv(m, v)
if self.regmesh.dim > 1:
deriv += self._evalSmoothy2Deriv(m, v)
if self.regmesh.dim > 2:
deriv += self._evalSmoothz2Deriv(m, v)
return deriv
@Utils.timeIt
def eval(self, m):
return self._evalSmall(m) + self._evalSmooth(m)
@Utils.timeIt
def evalDeriv(self, m):
"""
The regularization is:
.. math::
R(m) = \\frac{1}{2}\mathbf{(m-m_\\text{ref})^\\top W^\\top W(m-m_\\text{ref})}
So the derivative is straight forward:
.. math::
R(m) = \mathbf{W^\\top W (m-m_\\text{ref})}
"""
return self._evalSmallDeriv(m) + self._evalSmoothDeriv(m)
@Utils.timeIt
def eval2Deriv(self, m, v=None):
return self._evalSmall2Deriv(m, v) + self._evalSmooth2Deriv(m, v)
class Tikhonov(Simple):
class Tikhonov(BaseRegularization):
"""
L2 Tikhonov regularization with both smallness and smoothness (first order
derivative) contributions.
@@ -726,131 +490,56 @@ class Tikhonov(Simple):
self._Wzz = Utils.sdiag((self.regmesh.vol*self.alpha_zz)**0.5)*self.regmesh.faceDiffz*self.regmesh.cellDiffz
return self._Wzz
@property
def Wsmooth2(self):
def Wsmooth(self):
"""Full smoothness regularization matrix W"""
if getattr(self, '_Wsmooth', None) is None:
wlist = (self.Wxx)
wlist = (self.Wx, self.Wxx)
if self.regmesh.dim > 1:
wlist += (self.Wyy)
wlist += (self.Wy, self.Wyy)
if self.regmesh.dim > 2:
wlist += (self.Wzz)
wlist += (self.Wz, self.Wzz)
self._Wsmooth = sp.vstack(wlist)
return self._Wsmooth
@property
def W(self):
"""Full regularization matrix W"""
if getattr(self, '_W', None) is None:
wlist = (self.Wsmall, self.Wsmooth)
self._W = sp.vstack(wlist)
return self._W
@Utils.timeIt
def _evalSmoothxx(self, m):
if self.mrefInSmooth == True:
r = self.Wxx * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wxx * ( self.mapping * (m) )
def _evalSmall(self, m):
r = self.Wsmall * ( self.mapping * (m - self.mref) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmoothyy(self, m):
def _evalSmooth(self, m):
if self.mrefInSmooth == True:
r = self.Wyy * ( self.mapping * (m - self.mref) )
r = self.Wsmooth * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wyy * ( self.mapping * (m) )
r = self.Wsmooth * ( self.mapping * (m) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmoothzz(self, m):
if self.mrefInSmooth == True:
r = self.Wzz * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wzz * ( self.mapping * (m) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmooth2(self, m):
phiSmooth2 = self._evalSmoothxx(m)
if self.regmesh.dim > 1:
phiSmooth2 += self._evalSmoothyy(m)
if self.regmesh.dim > 2:
phiSmooth2 += self._evalSmoothzz(m)
return phiSmooth2
@Utils.timeIt
def _evalSmoothxxDeriv(self, m):
if self.mrefInSmooth == True:
r = self.Wxx * ( self.mapping * ( m - self.mref ) )
return r.T * ( self.Wxx * self.mapping.deriv(m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wxx * ( self.mapping * m )
return r.T * ( self.Wxx * self.mapping.deriv(m) )
@Utils.timeIt
def _evalSmoothyyDeriv(self, m):
if self.mrefInSmooth == True:
r = self.Wyy * ( self.mapping * ( m - self.mref ) )
return r.T * ( self.Wyy * self.mapping.deriv(m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wyy * ( self.mapping * m )
return r.T * ( self.Wyy * self.mapping.deriv(m) )
@Utils.timeIt
def _evalSmoothzzDeriv(self, m):
if self.mrefInSmooth == True:
r = self.Wzz * ( self.mapping * ( m - self.mref ) )
return r.T * ( self.Wzz * self.mapping.deriv(m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wzz * ( self.mapping * m )
return r.T * ( self.Wzz * self.mapping.deriv(m) )
@Utils.timeIt
def _evalSmoothxx2Deriv(self, m, v=None):
if self.mrefInSmooth == True:
rDeriv = self.Wxx * ( self.mapping.deriv( m - self.mref ) )
elif self.mrefInSmooth == False:
rDeriv = self.Wxx * self.mapping.deriv(m)
if v is not None:
return rDeriv.T * (rDeriv * v)
return rDeriv.T * rDeriv
@Utils.timeIt
def _evalSmoothyy2Deriv(self, m, v=None):
if self.mrefInSmooth == True:
rDeriv = self.Wyy * ( self.mapping.deriv( m - self.mref ) )
elif self.mrefInSmooth == False:
rDeriv = self.Wyy * self.mapping.deriv(m)
if v is not None:
return rDeriv.T * (rDeriv * v)
return rDeriv.T * rDeriv
@Utils.timeIt
def _evalSmoothzz2Deriv(self, m, v=None):
if self.mrefInSmooth == True:
rDeriv = self.Wzz * ( self.mapping.deriv( m - self.mref ) )
elif self.mrefInSmooth == False:
rDeriv = self.Wzz * self.mapping.deriv(m)
if v is not None:
return rDeriv.T * (rDeriv * v)
return rDeriv.T * rDeriv
@Utils.timeIt
def _evalSmoothDeriv2(self, m):
deriv = self._evalSmoothxxDeriv(m)
if self.regmesh.dim > 1:
deriv += self._evalSmoothyyDeriv(m)
if self.regmesh.dim > 2:
deriv += self._evalSmoothzzDeriv(m)
return deriv
@Utils.timeIt
def _evalSmooth2Deriv2(self, m, v=None):
deriv = self._evalSmoothxx2Deriv(m, v)
if self.regmesh.dim > 1:
deriv += self._evalSmoothyy2Deriv(m, v)
if self.regmesh.dim > 2:
deriv += self._evalSmoothzz2Deriv(m, v)
return deriv
@Utils.timeIt
def eval(self, m):
return self._evalSmall(m) + self._evalSmooth(m) + self._evalSmooth2(m)
return self._evalSmall(m) + self._evalSmooth(m)
@Utils.timeIt
def _evalSmallDeriv(self,m):
r = self.Wsmall * ( self.mapping * (m - self.mref) )
return r.T * ( self.Wsmall * self.mapping.deriv(m - self.mref) )
@Utils.timeIt
def _evalSmoothDeriv(self,m):
if self.mrefInSmooth == True:
r = self.Wsmooth * ( self.mapping * ( m - self.mref ) )
return r.T * ( self.Wsmooth * self.mapping.deriv(m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wsmooth * ( self.mapping * m )
return r.T * ( self.Wsmooth * self.mapping.deriv(m) )
@Utils.timeIt
def evalDeriv(self, m):
@@ -868,134 +557,184 @@ class Tikhonov(Simple):
R(m) = \mathbf{W^\\top W (m-m_\\text{ref})}
"""
return self._evalSmallDeriv(m) + self._evalSmoothDeriv(m) + self._evalSmoothDeriv2(m)
def eval2Deriv(self, m, v=None):
"""
The regularization is:
.. math::
R(m) = \\frac{1}{2}\mathbf{(m-m_\\text{ref})^\\top W^\\top W(m-m_\\text{ref})}
So the derivative is straight forward:
.. math::
R(m) = \mathbf{W^\\top W (m-m_\\text{ref})}
"""
return self._evalSmall2Deriv(m, v) + self._evalSmooth2Deriv(m, v) + self._evalSmooth2Deriv2(m, v)
return self._evalSmallDeriv(m) + self._evalSmoothDeriv(m)
class Sparse(Simple):
class Simple(Tikhonov):
"""
The regularization is:
.. math::
R(m) = \\frac{1}{2}\mathbf{(m-m_\\text{ref})^\\top W^\\top R^\\top R W(m-m_\\text{ref})}
where the IRLS weight
.. math::
R = \eta TO FINISH LATER!!!
So the derivative is straight forward:
.. math::
R(m) = \mathbf{W^\\top R^\\top R W (m-m_\\text{ref})}
The IRLS weights are recomputed after each beta solves.
It is strongly recommended to do a few Gauss-Newton iterations
before updating.
Simple regularization that does not include length scales in the derivatives.
"""
# set default values
eps_p = 1e-1 # Threshold value for the model norm
eps_q = 1e-1 # Threshold value for the model gradient norm
curModel = None # Requires model to compute the weights
l2model = None
gamma = 1. # Model norm scaling to smooth out convergence
norms = [0., 2., 2., 2.] # Values for norm on (m, dmdx, dmdy, dmdz)
cell_weights = 1. # Consider overwriting with sensitivity weights
mrefInSmooth = False #: SMOOTH and SMOOTH_MOD_DIF options
alpha_s = Utils.dependentProperty('_alpha_s', 1.0, ['_W', '_Wsmall'], "Smallness weight")
alpha_x = Utils.dependentProperty('_alpha_x', 1.0, ['_W', '_Wx'], "Weight for the first derivative in the x direction")
alpha_y = Utils.dependentProperty('_alpha_y', 1.0, ['_W', '_Wy'], "Weight for the first derivative in the y direction")
alpha_z = Utils.dependentProperty('_alpha_z', 1.0, ['_W', '_Wz'], "Weight for the first derivative in the z direction")
wght = 1.
def __init__(self, mesh, mapping=None, indActive=None, **kwargs):
Simple.__init__(self, mesh, mapping=mapping, indActive=indActive, **kwargs)
BaseRegularization.__init__(self, mesh, mapping=mapping, indActive=indActive, **kwargs)
if isinstance(self.cell_weights,float):
self.cell_weights = np.ones(self.regmesh.nC) * self.cell_weights
if isinstance(self.wght,float):
self.wght = np.ones(self.regmesh.nC) * self.wght
@property
def Wsmall(self):
"""Regularization matrix Wsmall"""
if getattr(self,'_Wsmall', None) is None:
if getattr(self, 'curModel', None) is None:
self.Rs = Utils.speye(self.regmesh.nC)
else:
f_m = self.mapping * (self.curModel - self.reg.mref)
self.rs = self.R(f_m , self.eps_p, self.norms[0])
self.Rs = Utils.sdiag( self.rs )
self._Wsmall = Utils.sdiag((self.alpha_s*self.gamma*self.cell_weights)**0.5)*self.Rs
self._Wsmall = Utils.sdiag((self.regmesh.vol*self.alpha_s*self.wght)**0.5)
return self._Wsmall
@property
def Wx(self):
"""Regularization matrix Wx"""
if getattr(self,'_Wx', None) is None:
if getattr(self, 'curModel', None) is None:
self.Rx = Utils.speye(self.regmesh.cellDiffxStencil.shape[0])
else:
f_m = self.regmesh.cellDiffxStencil * (self.mapping * self.curModel)
self.rx = self.R( f_m , self.eps_q, self.norms[1])
self.Rx = Utils.sdiag( self.rx )
self._Wx = Utils.sdiag(( self.alpha_x*self.gamma*(self.regmesh.aveCC2Fx*self.cell_weights))**0.5)*self.Rx*self.regmesh.cellDiffxStencil
if getattr(self, '_Wx', None) is None:
self._Wx = Utils.sdiag((self.regmesh.aveCC2Fx * self.regmesh.vol*self.alpha_x*(self.regmesh.aveCC2Fx*self.wght))**0.5)*self.regmesh.cellDiffxStencil
return self._Wx
@property
def Wy(self):
"""Regularization matrix Wy"""
if getattr(self,'_Wy', None) is None:
if getattr(self, 'curModel', None) is None:
self.Ry = Utils.speye(self.regmesh.cellDiffyStencil.shape[0])
else:
f_m = self.regmesh.cellDiffyStencil * (self.mapping * self.curModel)
self.ry = self.R( f_m , self.eps_q, self.norms[2])
self.Ry = Utils.sdiag( self.ry )
self._Wy = Utils.sdiag((self.alpha_y*self.gamma*(self.regmesh.aveCC2Fy*self.cell_weights))**0.5)*self.Ry*self.regmesh.cellDiffyStencil
if getattr(self, '_Wy', None) is None:
self._Wy = Utils.sdiag((self.regmesh.aveCC2Fy * self.regmesh.vol * self.alpha_y*(self.regmesh.aveCC2Fy*self.wght))**0.5)*self.regmesh.cellDiffyStencil
return self._Wy
@property
def Wz(self):
"""Regularization matrix Wz"""
if getattr(self,'_Wz', None) is None:
if getattr(self, 'curModel', None) is None:
self.Rz = Utils.speye(self.regmesh.cellDiffzStencil.shape[0])
else:
f_m = self.regmesh.cellDiffzStencil * (self.mapping * self.curModel)
self.rz = self.R( f_m , self.eps_q, self.norms[3])
self.Rz = Utils.sdiag( self.rz )
self._Wz = Utils.sdiag((self.alpha_z*self.gamma*(self.regmesh.aveCC2Fz*self.cell_weights))**0.5)*self.Rz*self.regmesh.cellDiffzStencil
if getattr(self, '_Wz', None) is None:
self._Wz = Utils.sdiag((self.regmesh.aveCC2Fz * self.regmesh.vol*self.alpha_z*(self.regmesh.aveCC2Fz*self.wght))**0.5)*self.regmesh.cellDiffzStencil
return self._Wz
@property
def Wsmooth(self):
"""Full smoothness regularization matrix W"""
if getattr(self, '_Wsmooth', None) is None:
wlist = (self.Wx,)
if self.regmesh.dim > 1:
wlist += (self.Wy,)
if self.regmesh.dim > 2:
wlist += (self.Wz,)
self._Wsmooth = sp.vstack(wlist)
return self._Wsmooth
@property
def W(self):
"""Full regularization matrix W"""
if getattr(self, '_W', None) is None:
wlist = (self.Wsmall, self.Wsmooth)
self._W = sp.vstack(wlist)
return self._W
@Utils.timeIt
def _evalSmall(self, m):
r = self.Wsmall * ( self.mapping * (m - self.mref) )
return 0.5 * r.dot(r)
@Utils.timeIt
def _evalSmooth(self, m):
if self.mrefInSmooth == True:
r = self.Wsmooth * ( self.mapping * (m - self.mref) )
elif self.mrefInSmooth == False:
r = self.Wsmooth * ( self.mapping * m)
return 0.5 * r.dot(r)
class Sparse(Simple):
# set default values
eps_p = 1e-1
eps_q = 1e-1
curModel = None # use a model to compute the weights
gamma = 1.
norms = [0., 2., 2., 2.]
wght = 1.
def __init__(self, mesh, mapping=None, indActive=None, **kwargs):
Simple.__init__(self, mesh, mapping=mapping, indActive=indActive, **kwargs)
if isinstance(self.wght,float):
self.wght = np.ones(self.regmesh.nC) * self.wght
@property
def Wsmall(self):
"""Regularization matrix Wsmall"""
if getattr(self, 'curModel', None) is None:
self.Rs = Utils.speye(self.regmesh.nC)
else:
f_m = self.mapping * (self.curModel - self.reg.mref)
self.rs = self.R(f_m , self.eps_p, self.norms[0])
self.Rs = Utils.sdiag( self.rs )
return Utils.sdiag((self.regmesh.vol*self.alpha_s*self.gamma*self.wght)**0.5)*self.Rs
@property
def Wx(self):
"""Regularization matrix Wx"""
if getattr(self, 'curModel', None) is None:
self.Rx = Utils.speye(self.regmesh.cellDiffxStencil.shape[0])
else:
f_m = self.regmesh.cellDiffxStencil * (self.mapping * self.curModel)
self.rx = self.R( f_m , self.eps_q, self.norms[1])
self.Rx = Utils.sdiag( self.rx )
return Utils.sdiag(( (self.regmesh.aveCC2Fx * self.regmesh.vol) *self.alpha_x*self.gamma*(self.regmesh.aveCC2Fx*self.wght))**0.5)*self.Rx*self.regmesh.cellDiffxStencil
@property
def Wy(self):
"""Regularization matrix Wy"""
if getattr(self, 'curModel', None) is None:
self.Ry = Utils.speye(self.regmesh.cellDiffyStencil.shape[0])
else:
f_m = self.regmesh.cellDiffyStencil * (self.mapping * self.curModel)
self.ry = self.R( f_m , self.eps_q, self.norms[2])
self.Ry = Utils.sdiag( self.ry )
return Utils.sdiag(((self.regmesh.aveCC2Fy * self.regmesh.vol)*self.alpha_y*self.gamma*(self.regmesh.aveCC2Fy*self.wght))**0.5)*self.Ry*self.regmesh.cellDiffyStencil
@property
def Wz(self):
"""Regularization matrix Wz"""
if getattr(self, 'curModel', None) is None:
self.Rz = Utils.speye(self.regmesh.cellDiffzStencil.shape[0])
else:
f_m = self.regmesh.cellDiffzStencil * (self.mapping * self.curModel)
self.rz = self.R( f_m , self.eps_q, self.norms[3])
self.Rz = Utils.sdiag( self.rz )
return Utils.sdiag(((self.regmesh.aveCC2Fz * self.regmesh.vol)*self.alpha_z*self.gamma*(self.regmesh.aveCC2Fz*self.wght))**0.5)*self.Rz*self.regmesh.cellDiffzStencil
@property
def Wsmooth(self):
"""Full smoothness regularization matrix W"""
#if getattr(self, '_Wsmooth', None) is None:
wlist = (self.Wx,)
if self.regmesh.dim > 1:
wlist += (self.Wy,)
if self.regmesh.dim > 2:
wlist += (self.Wz,)
#self._Wsmooth = sp.vstack(wlist)
return sp.vstack(wlist)
@property
def W(self):
"""Full regularization matrix W"""
if getattr(self, '_W', None) is None:
wlist = (self.Wsmall, self.Wsmooth)
self._W = sp.vstack(wlist)
return self._W
def R(self, f_m , eps, exponent):
# Eta scaling is important for mix-norms...do not mess with it
eta = (eps**(1.-exponent/2.))**0.5
r = eta / (f_m**2.+ eps**2.)**((1.-exponent/2.)/2.)
-1
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@@ -7,4 +7,3 @@ from CounterUtils import *
import ModelBuilder
import SolverUtils
from coordutils import *
from modelutils import *
-63
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@@ -1,63 +0,0 @@
from matutils import mkvc, ndgrid
import numpy as np
def surface2ind_topo(mesh, topo, gridLoc='CC'):
# def genActiveindfromTopo(mesh, topo):
"""
Get active indices from topography
"""
if mesh.dim == 3:
from scipy.interpolate import NearestNDInterpolator
Ftopo = NearestNDInterpolator(topo[:,:2], topo[:,2])
if gridLoc == 'CC':
XY = ndgrid(mesh.vectorCCx, mesh.vectorCCy)
Zcc = mesh.gridCC[:,2].reshape((np.prod(mesh.vnC[:2]), mesh.nCz), order='F')
gridTopo = Ftopo(XY)
actind = [gridTopo[ixy] <= Zcc[ixy,:] for ixy in range(np.prod(mesh.vnC[0]))]
actind = np.hstack(actind)
elif gridLoc == 'N':
XY = ndgrid(mesh.vectorNx, mesh.vectorNy)
gridTopo = Ftopo(XY).reshape(mesh.vnN[:2], order='F')
if mesh._meshType not in ['TENSOR', 'CYL', 'BASETENSOR']:
raise NotImplementedError('Nodal surface2ind_topo not implemented for %s mesh'%mesh._meshType)
Nz = mesh.vectorNz[1:] # TODO: this will only work for tensor meshes
actind = np.array([False]*mesh.nC).reshape(mesh.vnC, order='F')
for ii in range(mesh.nCx):
for jj in range(mesh.nCy):
actind[ii,jj,:] = [np.all(gridTopo[ii:ii+2, jj:jj+2] >= Nz[kk]) for kk in range(len(Nz)) ]
elif mesh.dim == 2:
from scipy.interpolate import interp1d
Ftopo = interp1d(topo[:,0], topo[:,1])
if gridLoc == 'CC':
gridTopo = Ftopo(mesh.gridCC[:,0])
actind = mesh.gridCC[:,1] <= gridTopo
elif gridLoc == 'N':
gridTopo = Ftopo(mesh.vectorNx)
if mesh._meshType not in ['TENSOR', 'CYL', 'BASETENSOR']:
raise NotImplementedError('Nodal surface2ind_topo not implemented for %s mesh'%mesh._meshType)
Ny = mesh.vectorNy[1:] # TODO: this will only work for tensor meshes
actind = np.array([False]*mesh.nC).reshape(mesh.vnC, order='F')
for ii in range(mesh.nCx):
actind[ii,:] = [np.all(gridTopo[ii:ii+2] > Ny[kk]) for kk in range(len(Ny)) ]
else:
raise NotImplementedError('surface2ind_topo not implemented for 1D mesh')
return mkvc(actind)
+3 -3
View File
@@ -20,9 +20,9 @@ INPUT:
loc = Location of spheres [[x1,y1,z1],[x2,y2,z2]]
radi = Radius of spheres [r1,r2]
param = Conductivity of background and two spheres [m0,m1,m2]
surveyType = survey type 'pole-dipole' or 'dipole-dipole'
unitType = Data type "appResistivity" | "appConductivity" | "volt"
Created by @fourndo
stype = survey type "pdp" (pole dipole) or "dpdp" (dipole dipole)
dtype = Data type "appr" (app res) | "appc" (app cond) | "volt" (potential)
Created by @fourndo on Mon Feb 01 19:28:06 2016
@@ -1,4 +1,4 @@
.. _examples_MT_1D_analytic_nlayer_Earth:
.. _examples_Forward_BasicDirectCurrent:
.. --------------------------------- ..
.. ..
@@ -8,14 +8,14 @@
.. ..
.. --------------------------------- ..
MT 1D analytic nlayer Earth
===========================
Forward BasicDirectCurrent
==========================
.. plot::
from SimPEG import Examples
Examples.MT_1D_analytic_nlayer_Earth.run()
Examples.Forward_BasicDirectCurrent.run()
.. literalinclude:: ../../SimPEG/Examples/MT_1D_analytic_nlayer_Earth.py
.. literalinclude:: ../../SimPEG/Examples/Forward_BasicDirectCurrent.py
:language: python
:linenos:
-25
View File
@@ -1,25 +0,0 @@
.. _examples_Mesh_Basic_ForwardDC:
.. --------------------------------- ..
.. ..
.. THIS FILE IS AUTO GENEREATED ..
.. ..
.. SimPEG/Examples/__init__.py ..
.. ..
.. --------------------------------- ..
Mesh: Basic Forward 2D DC Resistivity
=====================================
2D DC forward modeling example with Tensor and Curvilinear Meshes
.. plot::
from SimPEG import Examples
Examples.Mesh_Basic_ForwardDC.run()
.. literalinclude:: ../../SimPEG/Examples/Mesh_Basic_ForwardDC.py
:language: python
:linenos:
-24
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@@ -1,24 +0,0 @@
.. _examples_Utils_surface2ind_topo:
.. --------------------------------- ..
.. ..
.. THIS FILE IS AUTO GENEREATED ..
.. ..
.. SimPEG/Examples/__init__.py ..
.. ..
.. --------------------------------- ..
Here we show how to use :code:`Utils.surface2ind_topo` to identify cells below
a topographic surface.
.. plot::
from SimPEG import Examples
Examples.Utils_surface2ind_topo.run()
.. literalinclude:: ../../SimPEG/Examples/Utils_surface2ind_topo.py
:language: python
:linenos:
+6 -12
View File
@@ -5,17 +5,16 @@ SimPEG is a python package for simulation and gradient based
parameter estimation in the context of geophysical applications.
"""
import numpy as np
import os
import sys
import subprocess
from distutils.core import setup
from distutils.command.build_ext import build_ext
from setuptools import find_packages
from distutils.extension import Extension
CLASSIFIERS = [
'Development Status :: 4 - Beta',
'Intended Audience :: Developers',
@@ -52,16 +51,11 @@ if args.count("build_ext") > 0 and args.count("--inplace") == 0:
try:
from Cython.Build import cythonize
from Cython.Distutils import build_ext
cythonKwargs = dict(cmdclass={'build_ext': build_ext})
USE_CYTHON = True
except Exception, e:
USE_CYTHON = False
class NumpyBuild(build_ext):
def finalize_options(self):
build_ext.finalize_options(self)
__builtins__.__NUMPY_SETUP__ = False
import numpy
self.include_dirs.append(numpy.get_include())
cythonKwargs = dict()
ext = '.pyx' if USE_CYTHON else '.c'
@@ -100,8 +94,8 @@ setup(
classifiers=CLASSIFIERS,
platforms = ["Windows", "Linux", "Solaris", "Mac OS-X", "Unix"],
use_2to3 = False,
cmdclass={'build_ext':NumpyBuild},
setup_requires=['numpy'],
include_dirs=[np.get_include()],
ext_modules = extensions,
scripts=scripts,
**cythonKwargs
)
-29
View File
@@ -1,7 +1,6 @@
import unittest
from SimPEG import *
from scipy.constants import mu_0
from SimPEG import Tests
class MyPropMap(Maps.PropMap):
@@ -188,34 +187,6 @@ class TestPropMaps(unittest.TestCase):
MyReciprocalPropMap([('sigma', iMap), ('mu', iMap)]) # This should be fine
def test_linked_derivs_sigma(self):
mesh = Mesh.TensorMesh([4,5], x0='CC')
mapping = Maps.ExpMap(mesh)
propmap = MyReciprocalPropMap([('rho', mapping)])
x0 = np.random.rand(mesh.nC)
m = propmap(x0)
# test Sigma
testme = lambda v: [1./(m.rhoMap*v), m.sigmaDeriv]
print 'Testing Rho from Sigma'
Tests.checkDerivative(testme, x0, dx=0.01*x0, num=5, plotIt=False)
def test_linked_derivs_rho(self):
mesh = Mesh.TensorMesh([4,5], x0='CC')
mapping = Maps.ExpMap(mesh)
propmap = MyReciprocalPropMap([('sigma', mapping)])
x0 = np.random.rand(mesh.nC)
m = propmap(x0)
# test Sigma
testme = lambda v: [1./(m.sigmaMap*v), m.rhoDeriv]
print 'Testing Rho from Sigma'
Tests.checkDerivative(testme, x0, dx=0.01*x0, num=5, plotIt=False)
if __name__ == '__main__':
unittest.main()
+3 -1
View File
@@ -65,8 +65,10 @@ class RegularizationTests(unittest.TestCase):
elif mesh.dim == 3:
indActive = Utils.mkvc(mesh.gridCC[:,-1] <= 2*np.sin(2*np.pi*mesh.gridCC[:,0])+0.5 * 2*np.sin(2*np.pi*mesh.gridCC[:,1])+0.5)
mapping = Maps.IdentityMap(nP=indActive.nonzero()[0].size)
for indAct in [indActive, indActive.nonzero()[0]]: # test both bool and integers
reg = r(mesh, indActive=indAct)
reg = r(mesh, mapping=mapping, indActive=indAct)
m = np.random.rand(mesh.nC)[indAct]
reg.mref = np.ones_like(m)*np.mean(m)
+4 -4
View File
@@ -28,12 +28,12 @@ class FDEM_analyticTests(unittest.TestCase):
x = np.linspace(-10,10,5)
XYZ = Utils.ndgrid(x,np.r_[0],np.r_[0])
rxList = EM.FDEM.Rx.Point_e(XYZ, orientation='x', component='imag')
rxList = EM.FDEM.Rx(XYZ, 'exi')
Src0 = EM.FDEM.Src.MagDipole([rxList],loc=np.r_[0.,0.,0.], freq=freq)
survey = EM.FDEM.Survey([Src0])
prb = EM.FDEM.Problem3D_b(mesh, mapping=mapping)
prb = EM.FDEM.Problem_b(mesh, mapping=mapping)
prb.pair(survey)
try:
@@ -125,8 +125,8 @@ class FDEM_analyticTests(unittest.TestCase):
mapping = [('sigma', Maps.IdentityMap(mesh)),('mu', Maps.IdentityMap(mesh))]
prbe = EM.FDEM.Problem3D_h(mesh, mapping=mapping)
prbm = EM.FDEM.Problem3D_e(mesh, mapping=mapping)
prbe = EM.FDEM.Problem_h(mesh, mapping=mapping)
prbm = EM.FDEM.Problem_e(mesh, mapping=mapping)
prbe.pair(surveye) # pair problem and survey
prbm.pair(surveym)
+2 -2
View File
@@ -12,7 +12,7 @@ testBH = True
verbose = False
TOLEJHB = 1 # averaging and more sensitive to boundary condition violations (ie. the impact of violating the boundary conditions in each case is different.)
#TODO: choose better testing parameters to lower this
#TODO: choose better testing parameters to lower this
SrcList = ['RawVec', 'MagDipole_Bfield', 'MagDipole', 'CircularLoop']
@@ -125,4 +125,4 @@ class FDEM_CrossCheck(unittest.TestCase):
self.assertTrue(crossCheckTest(SrcList, 'b', 'h', 'hzi', verbose=verbose, TOL=TOLEJHB))
if __name__ == '__main__':
unittest.main()
unittest.main()
-69
View File
@@ -1,69 +0,0 @@
import unittest
from SimPEG import Mesh, Utils, EM, Maps, np
import SimPEG.EM.Static.DC as DC
class DCProblemAnalyticTests(unittest.TestCase):
def setUp(self):
cs = 12.5
hx = [(cs,7, -1.3),(cs,61),(cs,7, 1.3)]
hy = [(cs,7, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy],x0="CN")
sighalf = 1e-2
sigma = np.ones(mesh.nC)*sighalf
x = np.linspace(-135, 250., 20)
M = Utils.ndgrid(x-12.5, np.r_[0.])
N = Utils.ndgrid(x+12.5, np.r_[0.])
A0loc = np.r_[-150, 0.]
A1loc = np.r_[-130, 0.]
rxloc = [np.c_[M, np.zeros(20)], np.c_[N, np.zeros(20)]]
data_anal = EM.Analytics.DCAnalyticHalf(np.r_[A0loc, 0.], rxloc, sighalf, earth_type="halfspace")
rx = DC.Rx.Dipole_ky(M, N)
src0 = DC.Src.Pole([rx], A0loc)
survey = DC.Survey_ky([src0])
self.survey = survey
self.mesh = mesh
self.sigma = sigma
self.data_anal = data_anal
try:
from pymatsolver import MumpsSolver
self.Solver = MumpsSolver
except ImportError, e:
self.Solver = SolverLU
def test_Problem3D_N(self):
problem = DC.Problem2D_N(self.mesh)
problem.Solver = self.Solver
problem.pair(self.survey)
data = self.survey.dpred(self.sigma)
err= np.linalg.norm((data-self.data_anal)/self.data_anal)**2 / self.data_anal.size
if err < 0.05:
passed = True
print ">> DC analytic test for Problem3D_N is passed"
else:
passed = False
print ">> DC analytic test for Problem3D_N is failed"
self.assertTrue(passed)
def test_Problem3D_CC(self):
problem = DC.Problem2D_CC(self.mesh)
problem.Solver = self.Solver
problem.pair(self.survey)
data = self.survey.dpred(self.sigma)
err= np.linalg.norm((data-self.data_anal)/self.data_anal)**2 / self.data_anal.size
if err < 0.05:
passed = True
print ">> DC analytic test for Problem3D_CC is passed"
else:
passed = False
print ">> DC analytic test for Problem3D_CC is failed"
self.assertTrue(passed)
if __name__ == '__main__':
unittest.main()
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import unittest
from SimPEG import *
import SimPEG.EM.Static.DC as DC
class DCProblem_2DTestsCC(unittest.TestCase):
def setUp(self):
cs = 12.5
hx = [(cs,7, -1.3),(cs,61),(cs,7, 1.3)]
hy = [(cs,7, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy],x0="CN")
x = np.linspace(-135, 250., 20)
M = Utils.ndgrid(x-12.5, np.r_[0.])
N = Utils.ndgrid(x+12.5, np.r_[0.])
A0loc = np.r_[-150, 0.]
A1loc = np.r_[-130, 0.]
rxloc = [np.c_[M, np.zeros(20)], np.c_[N, np.zeros(20)]]
rx = DC.Rx.Dipole_ky(M, N)
src0 = DC.Src.Pole([rx], A0loc)
src1 = DC.Src.Pole([rx], A1loc)
survey = DC.Survey_ky([src0, src1])
problem = DC.Problem2D_CC(mesh, mapping=[('rho', Maps.IdentityMap(mesh))])
problem.pair(survey)
mSynth = np.ones(mesh.nC)*1.
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e0)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-10
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
class DCProblemTestsN(unittest.TestCase):
def setUp(self):
cs = 12.5
hx = [(cs,7, -1.3),(cs,61),(cs,7, 1.3)]
hy = [(cs,7, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy],x0="CN")
x = np.linspace(-135, 250., 20)
M = Utils.ndgrid(x-12.5, np.r_[0.])
N = Utils.ndgrid(x+12.5, np.r_[0.])
A0loc = np.r_[-150, 0.]
A1loc = np.r_[-130, 0.]
rxloc = [np.c_[M, np.zeros(20)], np.c_[N, np.zeros(20)]]
rx = DC.Rx.Dipole_ky(M, N)
src0 = DC.Src.Pole([rx], A0loc)
src1 = DC.Src.Pole([rx], A1loc)
survey = DC.Survey_ky([src0, src1])
problem = DC.Problem2D_N(mesh, mapping=[('rho', Maps.IdentityMap(mesh))])
problem.pair(survey)
mSynth = np.ones(mesh.nC)*1.
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e0)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-8
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
if __name__ == '__main__':
unittest.main()
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import unittest
from SimPEG import Mesh, Utils, EM, Maps, np
import SimPEG.EM.Static.DC as DC
class DCProblemAnalyticTests(unittest.TestCase):
def setUp(self):
cs = 25.
hx = [(cs,7, -1.3),(cs,21),(cs,7, 1.3)]
hy = [(cs,7, -1.3),(cs,21),(cs,7, 1.3)]
hz = [(cs,7, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy, hz],x0="CCN")
sigma = np.ones(mesh.nC)*1e-2
x = mesh.vectorCCx[(mesh.vectorCCx>-155.)&(mesh.vectorCCx<155.)]
y = mesh.vectorCCx[(mesh.vectorCCy>-155.)&(mesh.vectorCCy<155.)]
Aloc = np.r_[-200., 0., 0.]
Bloc = np.r_[200., 0., 0.]
M = Utils.ndgrid(x-25.,y, np.r_[0.])
N = Utils.ndgrid(x+25.,y, np.r_[0.])
phiA = EM.Analytics.DCAnalyticHalf(Aloc, [M,N], 1e-2, earth_type="halfspace")
phiB = EM.Analytics.DCAnalyticHalf(Bloc, [M,N], 1e-2, earth_type="halfspace")
data_anal = phiA-phiB
rx = DC.Rx.Dipole(M, N)
src = DC.Src.Dipole([rx], Aloc, Bloc)
survey = DC.Survey([src])
self.survey = survey
self.mesh = mesh
self.sigma = sigma
self.data_anal = data_anal
try:
from pymatsolver import MumpsSolver
self.Solver = MumpsSolver
except ImportError, e:
self.Solver = SolverLU
def test_Problem3D_N(self):
problem = DC.Problem3D_N(self.mesh)
problem.Solver = self.Solver
problem.pair(self.survey)
data = self.survey.dpred(self.sigma)
err= np.linalg.norm(data-self.data_anal)/np.linalg.norm(self.data_anal)
if err < 0.2:
passed = True
print ">> DC analytic test for Problem3D_N is passed"
else:
passed = False
print ">> DC analytic test for Problem3D_N is failed"
self.assertTrue(passed)
def test_Problem3D_CC(self):
problem = DC.Problem3D_CC(self.mesh)
problem.Solver = self.Solver
problem.pair(self.survey)
data = self.survey.dpred(self.sigma)
err= np.linalg.norm(data-self.data_anal)/np.linalg.norm(self.data_anal)
if err < 0.2:
passed = True
print ">> DC analytic test for Problem3D_CC is passed"
else:
passed = False
print ">> DC analytic test for Problem3D_CC is failed"
self.assertTrue(passed)
if __name__ == '__main__':
unittest.main()
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import unittest
from SimPEG import *
import SimPEG.EM.Static.DC as DC
class DCProblemTestsCC(unittest.TestCase):
def setUp(self):
aSpacing=2.5
nElecs=5
surveySize = nElecs*aSpacing - aSpacing
cs = surveySize/nElecs/4
mesh = Mesh.TensorMesh([
[(cs,10, -1.3),(cs,surveySize/cs),(cs,10, 1.3)],
[(cs,3, -1.3),(cs,3,1.3)],
# [(cs,5, -1.3),(cs,10)]
],'CN')
srcList = DC.Utils.WennerSrcList(nElecs, aSpacing, in2D=True)
survey = DC.Survey(srcList)
problem = DC.Problem3D_CC(mesh, mapping=[('rho', Maps.IdentityMap(mesh))])
problem.pair(survey)
mSynth = np.ones(mesh.nC)
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e4)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-10
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
class DCProblemTestsN(unittest.TestCase):
def setUp(self):
aSpacing=2.5
nElecs=10
surveySize = nElecs*aSpacing - aSpacing
cs = surveySize/nElecs/4
mesh = Mesh.TensorMesh([
[(cs,10, -1.3),(cs,surveySize/cs),(cs,10, 1.3)],
[(cs,3, -1.3),(cs,3,1.3)],
# [(cs,5, -1.3),(cs,10)]
],'CN')
srcList = DC.Utils.WennerSrcList(nElecs, aSpacing, in2D=True)
survey = DC.Survey(srcList)
problem = DC.Problem3D_N(mesh, mapping=[('rho', Maps.IdentityMap(mesh))])
problem.pair(survey)
mSynth = np.ones(mesh.nC)
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e4)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-8
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False)
self.assertTrue(passed)
if __name__ == '__main__':
unittest.main()
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import unittest
from SimPEG import Mesh, Utils, EM, Maps, np
import SimPEG.EM.Static.DC as DC
import SimPEG.EM.Static.IP as IP
class IPProblemAnalyticTests(unittest.TestCase):
def setUp(self):
cs = 12.5
npad=2
hx = [(cs,npad, -1.3),(cs,21),(cs,npad, 1.3)]
hy = [(cs,npad, -1.3),(cs,21),(cs,npad, 1.3)]
hz = [(cs,npad, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy, hz],x0="CCN")
x = mesh.vectorCCx[(mesh.vectorCCx>-80.)&(mesh.vectorCCx<80.)]
y = mesh.vectorCCx[(mesh.vectorCCy>-80.)&(mesh.vectorCCy<80.)]
Aloc = np.r_[-100., 0., 0.]
Bloc = np.r_[100., 0., 0.]
M = Utils.ndgrid(x-12.5,y, np.r_[0.])
N = Utils.ndgrid(x+12.5,y, np.r_[0.])
radius = 50.
xc = np.r_[0., 0., -100]
blkind = Utils.ModelBuilder.getIndicesSphere(xc, radius, mesh.gridCC)
sigmaInf = np.ones(mesh.nC)*1e-2
eta = np.zeros(mesh.nC)
eta[blkind] = 0.1
sigma0 = sigmaInf*(1.-eta)
rx = DC.Rx.Dipole(M, N)
src = DC.Src.Dipole([rx], Aloc, Bloc)
surveyDC = DC.Survey([src])
self.surveyDC = surveyDC
self.mesh = mesh
self.sigmaInf = sigmaInf
self.sigma0 = sigma0
self.src = src
self.eta = eta
try:
from pymatsolver import MumpsSolver
self.Solver = MumpsSolver
except ImportError, e:
self.Solver = SolverLU
def test_Problem3D_N(self):
problemDC = DC.Problem3D_N(self.mesh)
problemDC.Solver = self.Solver
problemDC.pair(self.surveyDC)
data0 = self.surveyDC.dpred(self.sigma0)
finf = problemDC.fields(self.sigmaInf)
datainf = self.surveyDC.dpred(self.sigmaInf, f=finf)
problemIP = IP.Problem3D_N(self.mesh, sigma=self.sigmaInf, Ainv=problemDC.Ainv, f=finf)
problemIP.Solver = self.Solver
surveyIP = IP.Survey([self.src])
problemIP.pair(surveyIP)
data_full = data0 - datainf
data = surveyIP.dpred(self.eta)
err= np.linalg.norm((data-data_full)/data_full)**2 / data_full.size
if err < 0.05:
passed = True
print ">> IP forward test for Problem3D_N is passed"
else:
passed = False
print ">> IP forward test for Problem3D_N is failed"
self.assertTrue(passed)
def test_Problem3D_CC(self):
problemDC = DC.Problem3D_CC(self.mesh)
problemDC.Solver = self.Solver
problemDC.pair(self.surveyDC)
data0 = self.surveyDC.dpred(self.sigma0)
finf = problemDC.fields(self.sigmaInf)
datainf = self.surveyDC.dpred(self.sigmaInf, f=finf)
problemIP = IP.Problem3D_CC(self.mesh, rho=1./self.sigmaInf, Ainv=problemDC.Ainv, f=finf)
problemIP.Solver = self.Solver
surveyIP = IP.Survey([self.src])
problemIP.pair(surveyIP)
data_full = data0 - datainf
data = surveyIP.dpred(self.eta)
err= np.linalg.norm((data-data_full)/data_full)**2 / data_full.size
if err < 0.05:
passed = True
print ">> IP forward test for Problem3D_CC is passed"
else:
passed = False
print ">> IP forward test for Problem3D_CC is failed"
self.assertTrue(passed)
if __name__ == '__main__':
unittest.main()
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import unittest
from SimPEG import *
import SimPEG.EM.Static.DC as DC
import SimPEG.EM.Static.IP as IP
class IPProblemTestsCC(unittest.TestCase):
def setUp(self):
aSpacing=2.5
nElecs=5
surveySize = nElecs*aSpacing - aSpacing
cs = surveySize/nElecs/4
mesh = Mesh.TensorMesh([
[(cs,10, -1.3),(cs,surveySize/cs),(cs,10, 1.3)],
[(cs,3, -1.3),(cs,3,1.3)],
# [(cs,5, -1.3),(cs,10)]
],'CN')
srcList = DC.Utils.WennerSrcList(nElecs, aSpacing, in2D=True)
survey = IP.Survey(srcList)
sigma = np.ones(mesh.nC)
problem = IP.Problem3D_CC(mesh, rho=1./sigma)
problem.pair(survey)
mSynth = np.ones(mesh.nC)*0.1
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e4)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-10
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
class IPProblemTestsN(unittest.TestCase):
def setUp(self):
aSpacing=2.5
nElecs=5
surveySize = nElecs*aSpacing - aSpacing
cs = surveySize/nElecs/4
mesh = Mesh.TensorMesh([
[(cs,10, -1.3),(cs,surveySize/cs),(cs,10, 1.3)],
[(cs,3, -1.3),(cs,3,1.3)],
# [(cs,5, -1.3),(cs,10)]
],'CN')
srcList = DC.Utils.WennerSrcList(nElecs, aSpacing, in2D=True)
survey = IP.Survey(srcList)
sigma = np.ones(mesh.nC)
problem = IP.Problem3D_N(mesh, sigma=sigma)
problem.pair(survey)
mSynth = np.ones(mesh.nC)*0.1
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e4)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-8
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
if __name__ == '__main__':
unittest.main()
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import unittest
from SimPEG import *
import SimPEG
from SimPEG import Mesh, Utils, EM, Maps, np, Survey
from SimPEG.EM.Static import SIP, DC, IP
from pymatsolver import MumpsSolver
class IPProblemTestsCC(unittest.TestCase):
def setUp(self):
cs = 25.
hx = [(cs,0, -1.3),(cs,21),(cs,0, 1.3)]
hy = [(cs,0, -1.3),(cs,21),(cs,0, 1.3)]
hz = [(cs,0, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy, hz],x0="CCN")
blkind0 = Utils.ModelBuilder.getIndicesSphere(np.r_[-100., -100., -200.], 75., mesh.gridCC)
blkind1 = Utils.ModelBuilder.getIndicesSphere(np.r_[100., 100., -200.], 75., mesh.gridCC)
sigma = np.ones(mesh.nC)*1e-2
eta = np.zeros(mesh.nC)
tau = np.ones_like(sigma)*1.
eta[blkind0] = 0.1
eta[blkind1] = 0.1
tau[blkind0] = 0.1
tau[blkind1] = 0.01
x = mesh.vectorCCx[(mesh.vectorCCx>-155.)&(mesh.vectorCCx<155.)]
y = mesh.vectorCCx[(mesh.vectorCCy>-155.)&(mesh.vectorCCy<155.)]
Aloc = np.r_[-200., 0., 0.]
Bloc = np.r_[200., 0., 0.]
M = Utils.ndgrid(x-25.,y, np.r_[0.])
N = Utils.ndgrid(x+25.,y, np.r_[0.])
times = np.arange(10)*1e-3 + 1e-3
rx = SIP.Rx.Dipole(M, N, times)
src = SIP.Src.Dipole([rx], Aloc, Bloc)
survey = SIP.Survey([src])
colemap = [("eta", Maps.IdentityMap(mesh)), ("taui", Maps.IdentityMap(mesh))]
problem = SIP.Problem3D_CC(mesh, rho=1./sigma, mapping=colemap)
problem.Solver = MumpsSolver
problem.pair(survey)
mSynth = np.r_[eta, 1./tau]
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e4)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC*2)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-10
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
class IPProblemTestsN(unittest.TestCase):
def setUp(self):
cs = 25.
hx = [(cs,0, -1.3),(cs,21),(cs,0, 1.3)]
hy = [(cs,0, -1.3),(cs,21),(cs,0, 1.3)]
hz = [(cs,0, -1.3),(cs,20)]
mesh = Mesh.TensorMesh([hx, hy, hz],x0="CCN")
blkind0 = Utils.ModelBuilder.getIndicesSphere(np.r_[-100., -100., -200.], 75., mesh.gridCC)
blkind1 = Utils.ModelBuilder.getIndicesSphere(np.r_[100., 100., -200.], 75., mesh.gridCC)
sigma = np.ones(mesh.nC)*1e-2
eta = np.zeros(mesh.nC)
tau = np.ones_like(sigma)*1.
eta[blkind0] = 0.1
eta[blkind1] = 0.1
tau[blkind0] = 0.1
tau[blkind1] = 0.01
x = mesh.vectorCCx[(mesh.vectorCCx>-155.)&(mesh.vectorCCx<155.)]
y = mesh.vectorCCx[(mesh.vectorCCy>-155.)&(mesh.vectorCCy<155.)]
Aloc = np.r_[-200., 0., 0.]
Bloc = np.r_[200., 0., 0.]
M = Utils.ndgrid(x-25.,y, np.r_[0.])
N = Utils.ndgrid(x+25.,y, np.r_[0.])
times = np.arange(10)*1e-3 + 1e-3
rx = SIP.Rx.Dipole(M, N, times)
src = SIP.Src.Dipole([rx], Aloc, Bloc)
survey = SIP.Survey([src])
colemap = [("eta", Maps.IdentityMap(mesh)), ("taui", Maps.IdentityMap(mesh))]
problem = SIP.Problem3D_N(mesh, sigma=sigma, mapping=colemap)
problem.Solver = MumpsSolver
problem.pair(survey)
mSynth = np.r_[eta, 1./tau]
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
reg = Regularization.Tikhonov(mesh)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e4)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC*2)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-8
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
class IPProblemTestsN_air(unittest.TestCase):
def setUp(self):
cs = 25.
hx = [(cs,0, -1.3),(cs,21),(cs,0, 1.3)]
hy = [(cs,0, -1.3),(cs,21),(cs,0, 1.3)]
hz = [(cs,0, -1.3),(cs,20),(cs,0, 1.3)]
mesh = Mesh.TensorMesh([hx, hy, hz],x0="CCC")
blkind0 = Utils.ModelBuilder.getIndicesSphere(np.r_[-100., -100., -200.], 75., mesh.gridCC)
blkind1 = Utils.ModelBuilder.getIndicesSphere(np.r_[100., 100., -200.], 75., mesh.gridCC)
sigma = np.ones(mesh.nC)*1e-2
airind = mesh.gridCC[:,2]>0.
sigma[airind] = 1e-8
eta = np.zeros(mesh.nC)
tau = np.ones_like(sigma)*1.
eta[blkind0] = 0.1
eta[blkind1] = 0.1
tau[blkind0] = 0.1
tau[blkind1] = 0.01
actmapeta = Maps.InjectActiveCells(mesh, ~airind, 0.)
actmaptau = Maps.InjectActiveCells(mesh, ~airind, 1.)
x = mesh.vectorCCx[(mesh.vectorCCx>-155.)&(mesh.vectorCCx<155.)]
y = mesh.vectorCCx[(mesh.vectorCCy>-155.)&(mesh.vectorCCy<155.)]
Aloc = np.r_[-200., 0., 0.]
Bloc = np.r_[200., 0., 0.]
M = Utils.ndgrid(x-25.,y, np.r_[0.])
N = Utils.ndgrid(x+25.,y, np.r_[0.])
times = np.arange(10)*1e-3 + 1e-3
rx = SIP.Rx.Dipole(M, N, times)
src = SIP.Src.Dipole([rx], Aloc, Bloc)
survey = SIP.Survey([src])
colemap = [("eta", Maps.IdentityMap(mesh)*actmapeta), ("taui", Maps.IdentityMap(mesh)*actmaptau)]
problem = SIP.Problem3D_N(mesh, sigma=sigma, mapping=colemap)
problem.Solver = MumpsSolver
problem.pair(survey)
mSynth = np.r_[eta[~airind], 1./tau[~airind]]
survey.makeSyntheticData(mSynth)
# Now set up the problem to do some minimization
dmis = DataMisfit.l2_DataMisfit(survey)
regmap = Maps.IdentityMap(nP=int(mSynth[~airind].size*2))
reg = SIP.MultiRegularization(mesh, mapping=regmap, nModels=2, indActive=~airind)
opt = Optimization.InexactGaussNewton(maxIterLS=20, maxIter=10, tolF=1e-6, tolX=1e-6, tolG=1e-6, maxIterCG=6)
invProb = InvProblem.BaseInvProblem(dmis, reg, opt, beta=1e4)
inv = Inversion.BaseInversion(invProb)
self.inv = inv
self.reg = reg
self.p = problem
self.mesh = mesh
self.m0 = mSynth
self.survey = survey
self.dmis = dmis
def test_misfit(self):
derChk = lambda m: [self.survey.dpred(m), lambda mx: self.p.Jvec(self.m0, mx)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
def test_adjoint(self):
# Adjoint Test
u = np.random.rand(self.mesh.nC*self.survey.nSrc)
v = np.random.rand(self.mesh.nC)
w = np.random.rand(self.survey.dobs.shape[0])
wtJv = w.dot(self.p.Jvec(self.m0, v))
vtJtw = v.dot(self.p.Jtvec(self.m0, w))
passed = np.abs(wtJv - vtJtw) < 1e-8
print 'Adjoint Test', np.abs(wtJv - vtJtw), passed
self.assertTrue(passed)
def test_dataObj(self):
derChk = lambda m: [self.dmis.eval(m), self.dmis.evalDeriv(m)]
passed = Tests.checkDerivative(derChk, self.m0, plotIt=False, num=3)
self.assertTrue(passed)
if __name__ == '__main__':
unittest.main()
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import numpy as np
import scipy.sparse as sp
import unittest
import matplotlib.pyplot as plt
from SimPEG import *
MESHTYPES = ['uniformTensorMesh']
def getxBCyBC_CC(mesh, alpha, beta, gamma):
# def getxBCyBC(mesh, alpha, beta, gamma):
"""
This is a subfunction generating mixed-boundary condition:
.. math::
\nabla \cdot \vec{j} = -\nabla \cdot \vec{j}_s = q
\rho \vec{j} = -\nabla \phi \phi
\alpha \phi + \beta \frac{\partial \phi}{\partial r} = \gamma \ at \ r = \partial \Omega
xBC = f_1(\alpha, \beta, \gamma)
yBC = f(\alpha, \beta, \gamma)
Computes xBC and yBC for cell-centered discretizations
"""
if mesh.dim == 1: #1D
if (len(alpha) != 2 or len(beta) != 2 or len(gamma) != 2):
raise Exception("Lenght of list, alpha should be 2")
fCCxm,fCCxp = mesh.cellBoundaryInd
nBC = fCCxm.sum()+fCCxp.sum()
h_xm, h_xp = mesh.gridCC[fCCxm], mesh.gridCC[fCCxp]
alpha_xm, beta_xm, gamma_xm = alpha[0], beta[0], gamma[0]
alpha_xp, beta_xp, gamma_xp = alpha[1], beta[1], gamma[1]
# h_xm, h_xp = mesh.gridCC[fCCxm], mesh.gridCC[fCCxp]
h_xm, h_xp = mesh.hx[0], mesh.hx[-1]
a_xm = gamma_xm/(0.5*alpha_xm-beta_xm/h_xm)
b_xm = (0.5*alpha_xm+beta_xm/h_xm)/(0.5*alpha_xm-beta_xm/h_xm)
a_xp = gamma_xp/(0.5*alpha_xp-beta_xp/h_xp)
b_xp = (0.5*alpha_xp+beta_xp/h_xp)/(0.5*alpha_xp-beta_xp/h_xp)
xBC_xm = 0.5*a_xm
xBC_xp = 0.5*a_xp/b_xp
yBC_xm = 0.5*(1.-b_xm)
yBC_xp = 0.5*(1.-1./b_xp)
xBC = np.r_[xBC_xm, xBC_xp]
yBC = np.r_[yBC_xm, yBC_xp]
elif mesh.dim == 2: #2D
if (len(alpha) != 4 or len(beta) != 4 or len(gamma) != 4):
raise Exception("Lenght of list, alpha should be 4")
fxm,fxp,fym,fyp = mesh.faceBoundaryInd
nBC = fxm.sum()+fxp.sum()+fxm.sum()+fxp.sum()
alpha_xm, beta_xm, gamma_xm = alpha[0], beta[0], gamma[0]
alpha_xp, beta_xp, gamma_xp = alpha[1], beta[1], gamma[1]
alpha_ym, beta_ym, gamma_ym = alpha[2], beta[2], gamma[2]
alpha_yp, beta_yp, gamma_yp = alpha[3], beta[3], gamma[3]
# h_xm, h_xp = mesh.gridCC[fCCxm,0], mesh.gridCC[fCCxp,0]
# h_ym, h_yp = mesh.gridCC[fCCym,1], mesh.gridCC[fCCyp,1]
h_xm, h_xp = mesh.hx[0]*np.ones_like(alpha_xm), mesh.hx[-1]*np.ones_like(alpha_xp)
h_ym, h_yp = mesh.hy[0]*np.ones_like(alpha_ym), mesh.hy[-1]*np.ones_like(alpha_yp)
a_xm = gamma_xm/(0.5*alpha_xm-beta_xm/h_xm)
b_xm = (0.5*alpha_xm+beta_xm/h_xm)/(0.5*alpha_xm-beta_xm/h_xm)
a_xp = gamma_xp/(0.5*alpha_xp-beta_xp/h_xp)
b_xp = (0.5*alpha_xp+beta_xp/h_xp)/(0.5*alpha_xp-beta_xp/h_xp)
a_ym = gamma_ym/(0.5*alpha_ym-beta_ym/h_ym)
b_ym = (0.5*alpha_ym+beta_ym/h_ym)/(0.5*alpha_ym-beta_ym/h_ym)
a_yp = gamma_yp/(0.5*alpha_yp-beta_yp/h_yp)
b_yp = (0.5*alpha_yp+beta_yp/h_yp)/(0.5*alpha_yp-beta_yp/h_yp)
xBC_xm = 0.5*a_xm
xBC_xp = 0.5*a_xp/b_xp
yBC_xm = 0.5*(1.-b_xm)
yBC_xp = 0.5*(1.-1./b_xp)
xBC_ym = 0.5*a_ym
xBC_yp = 0.5*a_yp/b_yp
yBC_ym = 0.5*(1.-b_ym)
yBC_yp = 0.5*(1.-1./b_yp)
sortindsfx = np.argsort(np.r_[np.arange(mesh.nFx)[fxm], np.arange(mesh.nFx)[fxp]])
sortindsfy = np.argsort(np.r_[np.arange(mesh.nFy)[fym], np.arange(mesh.nFy)[fyp]])
xBC_x = np.r_[xBC_xm, xBC_xp][sortindsfx]
xBC_y = np.r_[xBC_ym, xBC_yp][sortindsfy]
yBC_x = np.r_[yBC_xm, yBC_xp][sortindsfx]
yBC_y = np.r_[yBC_ym, yBC_yp][sortindsfy]
xBC = np.r_[xBC_x, xBC_y]
yBC = np.r_[yBC_x, yBC_y]
elif mesh.dim == 3: #3D
if (len(alpha) != 6 or len(beta) != 6 or len(gamma) != 6):
raise Exception("Lenght of list, alpha should be 6")
# fCCxm,fCCxp,fCCym,fCCyp,fCCzm,fCCzp = mesh.cellBoundaryInd
fxm,fxp,fym,fyp,fzm,fzp = mesh.faceBoundaryInd
nBC = fxm.sum()+fxp.sum()+fxm.sum()+fxp.sum()
alpha_xm, beta_xm, gamma_xm = alpha[0], beta[0], gamma[0]
alpha_xp, beta_xp, gamma_xp = alpha[1], beta[1], gamma[1]
alpha_ym, beta_ym, gamma_ym = alpha[2], beta[2], gamma[2]
alpha_yp, beta_yp, gamma_yp = alpha[3], beta[3], gamma[3]
alpha_zm, beta_zm, gamma_zm = alpha[4], beta[4], gamma[4]
alpha_zp, beta_zp, gamma_zp = alpha[5], beta[5], gamma[5]
# h_xm, h_xp = mesh.gridCC[fCCxm,0], mesh.gridCC[fCCxp,0]
# h_ym, h_yp = mesh.gridCC[fCCym,1], mesh.gridCC[fCCyp,1]
# h_zm, h_zp = mesh.gridCC[fCCzm,2], mesh.gridCC[fCCzp,2]
h_xm, h_xp = mesh.hx[0]*np.ones_like(alpha_xm), mesh.hx[-1]*np.ones_like(alpha_xp)
h_ym, h_yp = mesh.hy[0]*np.ones_like(alpha_ym), mesh.hy[-1]*np.ones_like(alpha_yp)
h_zm, h_zp = mesh.hz[0]*np.ones_like(alpha_zm), mesh.hz[-1]*np.ones_like(alpha_zp)
a_xm = gamma_xm/(0.5*alpha_xm-beta_xm/h_xm)
b_xm = (0.5*alpha_xm+beta_xm/h_xm)/(0.5*alpha_xm-beta_xm/h_xm)
a_xp = gamma_xp/(0.5*alpha_xp-beta_xp/h_xp)
b_xp = (0.5*alpha_xp+beta_xp/h_xp)/(0.5*alpha_xp-beta_xp/h_xp)
a_ym = gamma_ym/(0.5*alpha_ym-beta_ym/h_ym)
b_ym = (0.5*alpha_ym+beta_ym/h_ym)/(0.5*alpha_ym-beta_ym/h_ym)
a_yp = gamma_yp/(0.5*alpha_yp-beta_yp/h_yp)
b_yp = (0.5*alpha_yp+beta_yp/h_yp)/(0.5*alpha_yp-beta_yp/h_yp)
a_zm = gamma_zm/(0.5*alpha_zm-beta_zm/h_zm)
b_zm = (0.5*alpha_zm+beta_zm/h_zm)/(0.5*alpha_zm-beta_zm/h_zm)
a_zp = gamma_zp/(0.5*alpha_zp-beta_zp/h_zp)
b_zp = (0.5*alpha_zp+beta_zp/h_zp)/(0.5*alpha_zp-beta_zp/h_zp)
xBC_xm = 0.5*a_xm
xBC_xp = 0.5*a_xp/b_xp
yBC_xm = 0.5*(1.-b_xm)
yBC_xp = 0.5*(1.-1./b_xp)
xBC_ym = 0.5*a_ym
xBC_yp = 0.5*a_yp/b_yp
yBC_ym = 0.5*(1.-b_ym)
yBC_yp = 0.5*(1.-1./b_yp)
xBC_zm = 0.5*a_zm
xBC_zp = 0.5*a_zp/b_zp
yBC_zm = 0.5*(1.-b_zm)
yBC_zp = 0.5*(1.-1./b_zp)
sortindsfx = np.argsort(np.r_[np.arange(mesh.nFx)[fxm], np.arange(mesh.nFx)[fxp]])
sortindsfy = np.argsort(np.r_[np.arange(mesh.nFy)[fym], np.arange(mesh.nFy)[fyp]])
sortindsfz = np.argsort(np.r_[np.arange(mesh.nFz)[fzm], np.arange(mesh.nFz)[fzp]])
xBC_x = np.r_[xBC_xm, xBC_xp][sortindsfx]
xBC_y = np.r_[xBC_ym, xBC_yp][sortindsfy]
xBC_z = np.r_[xBC_zm, xBC_zp][sortindsfz]
yBC_x = np.r_[yBC_xm, yBC_xp][sortindsfx]
yBC_y = np.r_[yBC_ym, yBC_yp][sortindsfy]
yBC_z = np.r_[yBC_zm, yBC_zp][sortindsfz]
xBC = np.r_[xBC_x, xBC_y, xBC_z]
yBC = np.r_[yBC_x, yBC_y, yBC_z]
return xBC, yBC
class Test1D_InhomogeneousMixed(Tests.OrderTest):
name = "1D - Mixed"
meshTypes = MESHTYPES
meshDimension = 1
expectedOrders = 2
meshSizes = [4, 8, 16, 32]
def getError(self):
#Test function
phi_fun = lambda x: np.cos(np.pi*x)
j_fun = lambda x: np.pi*np.sin(np.pi*x)
phi_deriv = lambda x: -j_fun(x)
q_fun = lambda x: (np.pi**2)*np.cos(np.pi*x)
xc_ana = phi_fun(self.M.gridCC)
q_ana = q_fun(self.M.gridCC)
j_ana = j_fun(self.M.gridFx)
# Get boundary locations
vecN = self.M.vectorNx
vecC = self.M.vectorCCx
# Setup Mixed B.C (alpha, beta, gamma)
alpha_xm, alpha_xp = 1., 1.
beta_xm, beta_xp = 1., 1.
alpha = np.r_[alpha_xm, alpha_xp]
beta = np.r_[beta_xm, beta_xp]
vecN = self.M.vectorNx
vecC = self.M.vectorCCx
phi_bc = phi_fun(vecN[[0,-1]])
phi_deriv_bc = phi_deriv(vecN[[0,-1]])
gamma = alpha*phi_bc + beta*phi_deriv_bc
x_BC, y_BC = getxBCyBC_CC(self.M, alpha, beta, gamma)
sigma = np.ones(self.M.nC)
Mfrho = self.M.getFaceInnerProduct(1./sigma)
MfrhoI = self.M.getFaceInnerProduct(1./sigma, invMat=True)
V = Utils.sdiag(self.M.vol)
Div = V*self.M.faceDiv
P_BC, B = self.M.getBCProjWF_simple()
q = q_fun(self.M.gridCC)
M = B*self.M.aveCC2F
G = Div.T - P_BC*Utils.sdiag(y_BC)*M
# Mrhoj = D.T V phi + P_BC*Utils.sdiag(y_BC)*M phi - P_BC*x_BC
rhs = V*q + Div*MfrhoI*P_BC*x_BC
A = Div*MfrhoI*G
if self.myTest == 'xc':
#TODO: fix the null space
Ainv = Solver(A)
xc = Ainv*rhs
err = np.linalg.norm((xc-xc_ana), np.inf)
else:
NotImplementedError
return err
def test_order(self):
print "==== Testing Mixed boudary conduction for CC-problem ===="
self.name = "1D"
self.myTest = 'xc'
self.orderTest()
class Test2D_InhomogeneousMixed(Tests.OrderTest):
name = "2D - Mixed"
meshTypes = MESHTYPES
meshDimension = 2
expectedOrders = 2
meshSizes = [4, 8, 16, 32]
def getError(self):
#Test function
phi_fun = lambda x: np.cos(np.pi*x[:,0])*np.cos(np.pi*x[:,1])
j_funX = lambda x: +np.pi*np.sin(np.pi*x[:,0])*np.cos(np.pi*x[:,1])
j_funY = lambda x: +np.pi*np.cos(np.pi*x[:,0])*np.sin(np.pi*x[:,1])
phideriv_funX = lambda x: -j_funX(x)
phideriv_funY = lambda x: -j_funY(x)
q_fun = lambda x: +2*(np.pi**2)*phi_fun(x)
xc_ana = phi_fun(self.M.gridCC)
q_ana = q_fun(self.M.gridCC)
jX_ana = j_funX(self.M.gridFx)
jY_ana = j_funY(self.M.gridFy)
j_ana = np.r_[jX_ana,jY_ana]
# Get boundary locations
fxm,fxp,fym,fyp = self.M.faceBoundaryInd
gBFxm = self.M.gridFx[fxm,:]
gBFxp = self.M.gridFx[fxp,:]
gBFym = self.M.gridFy[fym,:]
gBFyp = self.M.gridFy[fyp,:]
# Setup Mixed B.C (alpha, beta, gamma)
alpha_xm, alpha_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
beta_xm, beta_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
alpha_ym, alpha_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
beta_ym, beta_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
phi_bc_xm, phi_bc_xp = phi_fun(gBFxm), phi_fun(gBFxp)
phi_bc_ym, phi_bc_yp = phi_fun(gBFym), phi_fun(gBFyp)
phiderivX_bc_xm, phiderivX_bc_xp = phideriv_funX(gBFxm), phideriv_funX(gBFxp)
phiderivY_bc_ym, phiderivY_bc_yp = phideriv_funY(gBFym), phideriv_funY(gBFyp)
gamma_fun = lambda alpha, beta, phi, phi_deriv: alpha*phi + beta*phi_deriv
gamma_xm = gamma_fun(alpha_xm, beta_xm, phi_bc_xm, phiderivX_bc_xm)
gamma_xp = gamma_fun(alpha_xp, beta_xp, phi_bc_xp, phiderivX_bc_xp)
gamma_ym = gamma_fun(alpha_ym, beta_ym, phi_bc_ym, phiderivY_bc_ym)
gamma_yp = gamma_fun(alpha_yp, beta_yp, phi_bc_yp, phiderivY_bc_yp)
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp]
x_BC, y_BC = getxBCyBC_CC(self.M, alpha, beta, gamma)
sigma = np.ones(self.M.nC)
Mfrho = self.M.getFaceInnerProduct(1./sigma)
MfrhoI = self.M.getFaceInnerProduct(1./sigma, invMat=True)
V = Utils.sdiag(self.M.vol)
Div = V*self.M.faceDiv
P_BC, B = self.M.getBCProjWF_simple()
q = q_fun(self.M.gridCC)
M = B*self.M.aveCC2F
G = Div.T - P_BC*Utils.sdiag(y_BC)*M
rhs = V*q + Div*MfrhoI*P_BC*x_BC
A = Div*MfrhoI*G
if self.myTest == 'xc':
Ainv = Solver(A)
xc = Ainv*rhs
err = np.linalg.norm((xc-xc_ana), np.inf)
else:
NotImplementedError
return err
def test_order(self):
print "==== Testing Mixed boudary conduction for CC-problem ===="
self.name = "2D"
self.myTest = 'xc'
self.orderTest()
class Test3D_InhomogeneousMixed(Tests.OrderTest):
name = "3D - Mixed"
meshTypes = MESHTYPES
meshDimension = 3
expectedOrders = 2
meshSizes = [4, 8, 16]
def getError(self):
#Test function
phi_fun = lambda x: np.cos(np.pi*x[:,0])*np.cos(np.pi*x[:,1])*np.cos(np.pi*x[:,2])
j_funX = lambda x: +np.pi*np.sin(np.pi*x[:,0])*np.cos(np.pi*x[:,1])*np.cos(np.pi*x[:,2])
j_funY = lambda x: +np.pi*np.cos(np.pi*x[:,0])*np.sin(np.pi*x[:,1])*np.cos(np.pi*x[:,2])
j_funZ = lambda x: +np.pi*np.cos(np.pi*x[:,0])*np.cos(np.pi*x[:,1])*np.sin(np.pi*x[:,2])
phideriv_funX = lambda x: -j_funX(x)
phideriv_funY = lambda x: -j_funY(x)
phideriv_funZ = lambda x: -j_funZ(x)
q_fun = lambda x: 3*(np.pi**2)*phi_fun(x)
xc_ana = phi_fun(self.M.gridCC)
q_ana = q_fun(self.M.gridCC)
jX_ana = j_funX(self.M.gridFx)
jY_ana = j_funY(self.M.gridFy)
j_ana = np.r_[jX_ana,jY_ana,jY_ana]
# Get boundary locations
fxm,fxp,fym,fyp,fzm,fzp = self.M.faceBoundaryInd
gBFxm = self.M.gridFx[fxm,:]
gBFxp = self.M.gridFx[fxp,:]
gBFym = self.M.gridFy[fym,:]
gBFyp = self.M.gridFy[fyp,:]
gBFzm = self.M.gridFz[fzm,:]
gBFzp = self.M.gridFz[fzp,:]
# Setup Mixed B.C (alpha, beta, gamma)
alpha_xm, alpha_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
beta_xm, beta_xp = np.ones_like(gBFxm[:,0]), np.ones_like(gBFxp[:,0])
alpha_ym, alpha_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
beta_ym, beta_yp = np.ones_like(gBFym[:,1]), np.ones_like(gBFyp[:,1])
alpha_zm, alpha_zp = np.ones_like(gBFzm[:,2]), np.ones_like(gBFzp[:,2])
beta_zm, beta_zp = np.ones_like(gBFzm[:,2]), np.ones_like(gBFzp[:,2])
phi_bc_xm, phi_bc_xp = phi_fun(gBFxm), phi_fun(gBFxp)
phi_bc_ym, phi_bc_yp = phi_fun(gBFym), phi_fun(gBFyp)
phi_bc_zm, phi_bc_zp = phi_fun(gBFzm), phi_fun(gBFzp)
phiderivX_bc_xm, phiderivX_bc_xp = phideriv_funX(gBFxm), phideriv_funX(gBFxp)
phiderivY_bc_ym, phiderivY_bc_yp = phideriv_funY(gBFym), phideriv_funY(gBFyp)
phiderivY_bc_zm, phiderivY_bc_zp = phideriv_funZ(gBFzm), phideriv_funZ(gBFzp)
gamma_fun = lambda alpha, beta, phi, phi_deriv: alpha*phi + beta*phi_deriv
gamma_xm = gamma_fun(alpha_xm, beta_xm, phi_bc_xm, phiderivX_bc_xm)
gamma_xp = gamma_fun(alpha_xp, beta_xp, phi_bc_xp, phiderivX_bc_xp)
gamma_ym = gamma_fun(alpha_ym, beta_ym, phi_bc_ym, phiderivY_bc_ym)
gamma_yp = gamma_fun(alpha_yp, beta_yp, phi_bc_yp, phiderivY_bc_yp)
gamma_zm = gamma_fun(alpha_zm, beta_zm, phi_bc_zm, phiderivY_bc_zm)
gamma_zp = gamma_fun(alpha_zp, beta_zp, phi_bc_zp, phiderivY_bc_zp)
alpha = [alpha_xm, alpha_xp, alpha_ym, alpha_yp, alpha_zm, alpha_zp]
beta = [beta_xm, beta_xp, beta_ym, beta_yp, beta_zm, beta_zp]
gamma = [gamma_xm, gamma_xp, gamma_ym, gamma_yp, gamma_zm, gamma_zp]
x_BC, y_BC = getxBCyBC_CC(self.M, alpha, beta, gamma)
sigma = np.ones(self.M.nC)
Mfrho = self.M.getFaceInnerProduct(1./sigma)
MfrhoI = self.M.getFaceInnerProduct(1./sigma, invMat=True)
V = Utils.sdiag(self.M.vol)
Div = V*self.M.faceDiv
P_BC, B = self.M.getBCProjWF_simple()
q = q_fun(self.M.gridCC)
M = B*self.M.aveCC2F
G = Div.T - P_BC*Utils.sdiag(y_BC)*M
rhs = V*q + Div*MfrhoI*P_BC*x_BC
A = Div*MfrhoI*G
if self.myTest == 'xc':
#TODO: fix the null space
Ainv = Solver(A)
xc = Ainv*rhs
err = np.linalg.norm((xc-xc_ana), np.inf)
else:
NotImplementedError
return err
def test_order(self):
print "==== Testing Mixed boudary conduction for CC-problem ===="
self.name = "3D"
self.myTest = 'xc'
self.orderTest()
if __name__ == '__main__':
unittest.main()
+4 -80
View File
@@ -146,20 +146,6 @@ class TestCyl2DMesh(unittest.TestCase):
assert np.abs(Pr*(Pc2r*mc) - Pc*mc).max() < 1e-3
def test_getInterpMatCartMesh_Cells2Nodes(self):
Mr = Mesh.TensorMesh([100,100,2], x0='CC0')
Mc = Mesh.CylMesh([np.ones(10)/5,1,10],x0='0C0',cartesianOrigin=[-0.2,-0.2,0])
mc = np.arange(Mc.nC)
xr = np.linspace(0,0.4,50)
xc = np.linspace(0,0.4,50) + 0.2
Pr = Mr.getInterpolationMat(np.c_[xr,np.ones(50)*-0.2,np.ones(50)*0.5],'N')
Pc = Mc.getInterpolationMat(np.c_[xc,np.zeros(50),np.ones(50)*0.5],'CC')
Pc2r = Mc.getInterpolationMatCartMesh(Mr, 'CC', locTypeTo='N')
assert np.abs(Pr*(Pc2r*mc) - Pc*mc).max() < 1e-3
def test_getInterpMatCartMesh_Faces(self):
Mr = Mesh.TensorMesh([100,100,2], x0='CC0')
@@ -191,37 +177,6 @@ class TestCyl2DMesh(unittest.TestCase):
assert np.abs(mag[dist > 0.1].min() - 1) < TOL
def test_getInterpMatCartMesh_Faces2Edges(self):
Mr = Mesh.TensorMesh([100,100,2], x0='CC0')
Mc = Mesh.CylMesh([np.ones(10)/5,1,10],x0='0C0',cartesianOrigin=[-0.2,-0.2,0])
Pf2e = Mc.getInterpolationMatCartMesh(Mr, 'F', locTypeTo='E')
mf = np.ones(Mc.nF)
ecart = Pf2e * mf
excc = Mr.aveEx2CC*Mr.r(ecart, 'E', 'Ex')
eycc = Mr.aveEy2CC*Mr.r(ecart, 'E', 'Ey')
ezcc = Mr.r(ecart, 'E', 'Ez')
indX = Utils.closestPoints(Mr, [0.45, -0.2, 0.5])
indY = Utils.closestPoints(Mr, [-0.2, 0.45, 0.5])
TOL = 1e-2
assert np.abs(float(excc[indX]) - 1) < TOL
assert np.abs(float(excc[indY]) - 0) < TOL
assert np.abs(float(eycc[indX]) - 0) < TOL
assert np.abs(float(eycc[indY]) - 1) < TOL
assert np.abs((ezcc - 1).sum()) < TOL
mag = (excc**2 + eycc**2)**0.5
dist = ((Mr.gridCC[:,0] + 0.2)**2 + (Mr.gridCC[:,1] + 0.2)**2)**0.5
assert np.abs(mag[dist > 0.1].max() - 1) < TOL
assert np.abs(mag[dist > 0.1].min() - 1) < TOL
def test_getInterpMatCartMesh_Edges(self):
Mr = Mesh.TensorMesh([100,100,2], x0='CC0')
@@ -230,42 +185,11 @@ class TestCyl2DMesh(unittest.TestCase):
Pe = Mc.getInterpolationMatCartMesh(Mr, 'E')
me = np.ones(Mc.nE)
ecart = Pe * me
erect = Pe * me
excc = Mr.aveEx2CC*Mr.r(ecart, 'E', 'Ex')
eycc = Mr.aveEy2CC*Mr.r(ecart, 'E', 'Ey')
ezcc = Mr.aveEz2CC*Mr.r(ecart, 'E', 'Ez')
indX = Utils.closestPoints(Mr, [0.45, -0.2, 0.5])
indY = Utils.closestPoints(Mr, [-0.2, 0.45, 0.5])
TOL = 1e-2
assert np.abs(float(excc[indX]) - 0) < TOL
assert np.abs(float(excc[indY]) + 1) < TOL
assert np.abs(float(eycc[indX]) - 1) < TOL
assert np.abs(float(eycc[indY]) - 0) < TOL
assert np.abs(ezcc.sum()) < TOL
mag = (excc**2 + eycc**2)**0.5
dist = ((Mr.gridCC[:,0] + 0.2)**2 + (Mr.gridCC[:,1] + 0.2)**2)**0.5
assert np.abs(mag[dist > 0.1].max() - 1) < TOL
assert np.abs(mag[dist > 0.1].min() - 1) < TOL
def test_getInterpMatCartMesh_Edges2Faces(self):
Mr = Mesh.TensorMesh([100,100,2], x0='CC0')
Mc = Mesh.CylMesh([np.ones(10)/5,1,10],x0='0C0',cartesianOrigin=[-0.2,-0.2,0])
Pe2f = Mc.getInterpolationMatCartMesh(Mr, 'E', locTypeTo='F')
me = np.ones(Mc.nE)
frect = Pe2f * me
excc = Mr.aveFx2CC*Mr.r(frect, 'F', 'Fx')
eycc = Mr.aveFy2CC*Mr.r(frect, 'F', 'Fy')
ezcc = Mr.r(frect, 'F', 'Fz')
excc = Mr.aveEx2CC*Mr.r(erect, 'E', 'Ex')
eycc = Mr.aveEy2CC*Mr.r(erect, 'E', 'Ey')
ezcc = Mr.r(erect, 'E', 'Ez')
indX = Utils.closestPoints(Mr, [0.45, -0.2, 0.5])
indY = Utils.closestPoints(Mr, [-0.2, 0.45, 0.5])

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