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Clean examples and remove duplicate.
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@@ -1,21 +1,31 @@
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from SimPEG import *
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from SimPEG import Mesh, Utils, np, sp
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import SimPEG.DCIP as DC
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import scipy.interpolate as interpolation
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import matplotlib.pyplot as plt
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import time
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import re
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def run(loc=np.c_[[-50.,0.,-50.],[50.,0.,-50.]], sig=np.r_[1e-2,1e-1,1e-3], radi=np.r_[25.,25.], param = np.r_[30.,30.,5], stype = 'dpdp', plotIt=True):
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def run(loc=None, sig=None, radi=None, param=None, stype='dpdp', plotIt=True):
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"""
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DC Forward Simulation
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DC Forward Simulation
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=====================
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Forward model conductive spheres in a half-space and plot a pseudo-section
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Forward model conductive spheres in a half-space and plot a pseudo-section
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Created on Mon Feb 01 19:28:06 2016
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Created by @fourndo on Mon Feb 01 19:28:06 2016
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@fourndo
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"""
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assert stype in ['pdp', 'dpdp'], "Source type (stype) must be pdp or dpdp (pole dipole or dipole dipole)"
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if loc is None:
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loc = np.c_[[-50.,0.,-50.],[50.,0.,-50.]]
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if sig is None:
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sig = np.r_[1e-2,1e-1,1e-3]
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if radi is None:
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radi = np.r_[25.,25.]
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if param is None:
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param = np.r_[30.,30.,5]
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# First we need to create a mesh and a model.
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# This is our mesh
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@@ -104,24 +114,21 @@ def run(loc=np.c_[[-50.,0.,-50.],[50.,0.,-50.]], sig=np.r_[1e-2,1e-1,1e-3], radi
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# For usual cases "dpdp" or "gradient"
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if not re.match(stype,'pdp'):
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inds = Utils.closestPoints(mesh, np.asarray(Tx[ii]).T )
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RHS = mesh.getInterpolationMat(np.asarray(Tx[ii]).T, 'CC').T*( [-1,1] / mesh.vol[inds] )
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else:
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if stype == 'pdp':
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# Create an "inifinity" pole
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tx = np.squeeze(Tx[ii][:,0:1])
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tinf = tx + np.array([dl_x,dl_y,0])*dl_len*2
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inds = Utils.closestPoints(mesh, np.c_[tx,tinf].T)
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RHS = mesh.getInterpolationMat(np.asarray(Tx[ii]).T, 'CC').T*( [-1] / mesh.vol[inds] )
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else:
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inds = Utils.closestPoints(mesh, np.asarray(Tx[ii]).T )
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RHS = mesh.getInterpolationMat(np.asarray(Tx[ii]).T, 'CC').T*( [-1,1] / mesh.vol[inds] )
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# Iterative Solve
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Ainvb = sp.linalg.bicgstab(P*A,P*RHS, tol=1e-5)
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# We now have the potential everywhere
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phi = mkvc(Ainvb[0])
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phi = Utils.mkvc(Ainvb[0])
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# Solve for phi on pole locations
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P1 = mesh.getInterpolationMat(rxloc_M, 'CC')
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@@ -143,6 +150,7 @@ def run(loc=np.c_[[-50.,0.,-50.],[50.,0.,-50.]], sig=np.r_[1e-2,1e-1,1e-3], radi
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# Here is an example for the first tx-rx array
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if plotIt:
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import matplotlib.pyplot as plt
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fig = plt.figure()
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ax = plt.subplot(2,1,1, aspect='equal')
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mesh.plotSlice(np.log10(model), ax =ax, normal = 'Y', ind = indy,grid=True)
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