Ejemplo n.º 1
0
    def setUp(self):

        npad = 10
        cs = 12.5
        hx = [(cs, npad, -1.4), (cs, 61), (cs, npad, 1.4)]
        hy = [(cs, npad, -1.4), (cs, 20)]
        mesh = TensorMesh([hx, hy], x0="CN")
        sighalf = 1e-2
        sigma = np.ones(mesh.nC) * sighalf
        x = mesh.cell_centers_x[
            np.logical_and(mesh.cell_centers_x > -150, mesh.cell_centers_x < 250)
        ]
        M = utils.ndgrid(x, np.r_[0.0])
        N = utils.ndgrid(x + 12.5 * 4, np.r_[0.0])
        A0loc = np.r_[-200, 0.0]
        A1loc = np.r_[-250, 0.0]
        rx = dc.receivers.Dipole(M, N, data_type="apparent_resistivity")
        src0 = dc.sources.Dipole([rx], A0loc, A1loc)
        survey = dc.Survey([src0])

        self.survey = survey
        self.mesh = mesh
        self.sigma = sigma
        self.sigma_half = sighalf
        self.plotIt = False

        try:
            from pymatsolver import Pardiso

            self.solver = Pardiso
        except ImportError:
            self.solver = SolverLU
Ejemplo n.º 2
0
    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 = TensorMesh([hx, hy], x0="CN")
        sighalf = 1e-2
        sigma = np.ones(mesh.nC) * sighalf
        x = np.linspace(-135, 250.0, 20)
        M = utils.ndgrid(x - 12.5, np.r_[0.0])
        N = utils.ndgrid(x + 12.5, np.r_[0.0])
        A0loc = np.r_[-150, 0.0]
        # A1loc = np.r_[-130, 0.]
        rxloc = [np.c_[M, np.zeros(20)], np.c_[N, np.zeros(20)]]
        data_ana = analytics.DCAnalytic_Pole_Dipole(np.r_[A0loc, 0.0],
                                                    rxloc,
                                                    sighalf,
                                                    earth_type="halfspace")

        rx = dc.receivers.Dipole(M, N)
        src0 = dc.sources.Pole([rx], A0loc)
        survey = dc.Survey([src0])

        self.survey = survey
        self.mesh = mesh
        self.sigma = sigma
        self.data_ana = data_ana
        self.plotIt = False

        try:
            from pymatsolver import Pardiso

            self.Solver = Pardiso
        except ImportError:
            self.Solver = SolverLU
Ejemplo n.º 3
0
    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 = TensorMesh([hx, hy], x0="CN")
        sighalf = 1e-2
        sigma = np.ones(mesh.nC) * sighalf
        x = np.linspace(-135, 250.0, 20)
        M = utils.ndgrid(x - 12.5, np.r_[0.0])
        N = utils.ndgrid(x + 12.5, np.r_[0.0])
        A0loc = np.r_[-150, 0.0]
        A1loc = np.r_[-130, 0.0]

        rx = dc.receivers.Dipole(M, N, data_type="apparent_resistivity")
        src0 = dc.sources.Dipole([rx], A0loc, A1loc)
        survey = dc.Survey([src0])

        self.survey = survey
        self.mesh = mesh
        self.sigma = sigma
        self.sigma_half = sighalf
        self.plotIt = False

        try:
            from pymatsolver import Pardiso

            self.Solver = Pardiso
        except ImportError:
            self.Solver = SolverLU
Ejemplo n.º 4
0
    def setUp(self):
        mesh = discretize.TensorMesh([30, 30], x0=[-0.5, -1.0])
        sigma = np.random.rand(mesh.nC)
        model = np.log(sigma)

        # prob = DC.Simulation3DCellCentered(mesh, rhoMap=maps.ExpMap(mesh))
        # prob1 = DC.Simulation3DCellCentered(mesh, rhoMap=maps.ExpMap(mesh))

        rx = DC.Rx.Pole(utils.ndgrid([mesh.vectorCCx, np.r_[mesh.vectorCCy.max()]]))
        rx1 = DC.Rx.Pole(utils.ndgrid([mesh.vectorCCx, np.r_[mesh.vectorCCy.min()]]))
        src = DC.Src.Dipole(
            [rx], np.r_[-0.25, mesh.vectorCCy.max()], np.r_[0.25, mesh.vectorCCy.max()]
        )
        src1 = DC.Src.Dipole(
            [rx1], np.r_[-0.25, mesh.vectorCCy.max()], np.r_[0.25, mesh.vectorCCy.max()]
        )
        survey = DC.Survey([src])
        simulation0 = DC.simulation.Simulation3DCellCentered(
            mesh=mesh, survey=survey, rhoMap=maps.ExpMap(mesh)
        )

        survey1 = DC.Survey([src1])
        simulation1 = DC.simulation.Simulation3DCellCentered(
            mesh=mesh, survey=survey1, rhoMap=maps.ExpMap(mesh)
        )

        dobs0 = simulation0.make_synthetic_data(model)
        dobs1 = simulation1.make_synthetic_data(model)

        self.mesh = mesh
        self.model = model

        self.survey0 = survey
        self.sim0 = simulation0

        self.survey1 = survey1
        self.sim1 = simulation1

        # self.dmis0 = data_misfit.L2DataMisfit(self.survey0)
        self.dmis0 = data_misfit.L2DataMisfit(data=dobs0, simulation=simulation0)
        self.dmis1 = data_misfit.L2DataMisfit(data=dobs1, simulation=simulation1)

        self.dmiscombo = self.dmis0 + self.dmis1
Ejemplo n.º 5
0
    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 = discretize.TensorMesh([hx, hy], x0="CN")

        x = np.linspace(-200, 200.0, 20)
        M = utils.ndgrid(x - 12.5, np.r_[0.0])
        N = utils.ndgrid(x + 12.5, np.r_[0.0])
        A0loc = np.r_[-150, 0.0]
        A1loc = np.r_[-130, 0.0]
        B0loc = np.r_[-130, 0.0]
        B1loc = np.r_[-110, 0.0]

        rx = dc.Rx.Dipole(M, N)
        src0 = dc.Src.Dipole([rx], A0loc, B0loc)
        src1 = dc.Src.Dipole([rx], A1loc, B1loc)

        src0_ip = dc.Src.Dipole([rx], A0loc, B0loc)
        src1_ip = dc.Src.Dipole([rx], A1loc, B1loc)

        source_lists = [src0, src1]
        source_lists_ip = [src0_ip, src1_ip]
        surveyDC = dc.Survey([src0, src1])

        sigmaInf = np.ones(mesh.nC) * 1.0
        blkind = utils.model_builder.getIndicesSphere(np.r_[0, -150], 40,
                                                      mesh.gridCC)

        eta = np.zeros(mesh.nC)
        eta[blkind] = 0.1
        sigma0 = sigmaInf * (1.0 - eta)

        self.surveyDC = surveyDC
        self.mesh = mesh
        self.sigmaInf = sigmaInf
        self.sigma0 = sigma0
        self.source_lists = source_lists
        self.source_lists_ip = source_lists_ip
        self.eta = eta
Ejemplo n.º 6
0
    def setUp(self):

        npad = 10
        cs = 12.5
        hx = [(cs, npad, -1.4), (cs, 61), (cs, npad, 1.4)]
        hy = [(cs, npad, -1.4), (cs, 20)]
        mesh = TensorMesh([hx, hy], x0="CN")
        sighalf = 1e-2
        sigma = np.ones(mesh.nC) * sighalf
        x = mesh.cell_centers_x[
            np.logical_and(mesh.cell_centers_x > -150, mesh.cell_centers_x < 250)
        ]
        M = utils.ndgrid(x, np.r_[0.0])
        N = utils.ndgrid(x + 12.5 * 4, np.r_[0.0])
        A0loc = np.r_[-200, 0.0]
        A1loc = np.r_[-250, 0.0]
        rxloc = [np.c_[M, np.zeros(x.size)], np.c_[N, np.zeros(x.size)]]
        data_ana_A = analytics.DCAnalytic_Pole_Dipole(
            np.r_[A0loc, 0.0], rxloc, sighalf, earth_type="halfspace"
        )
        data_ana_b = analytics.DCAnalytic_Pole_Dipole(
            np.r_[A1loc, 0.0], rxloc, sighalf, earth_type="halfspace"
        )
        data_ana = data_ana_A - data_ana_b

        rx = dc.receivers.Dipole(M, N)
        src0 = dc.sources.Dipole([rx], A0loc, A1loc)
        survey = dc.Survey([src0])

        self.survey = survey
        self.mesh = mesh
        self.sigma = sigma
        self.data_ana = data_ana
        self.plotIt = False

        try:
            from pymatsolver import Pardiso

            self.solver = Pardiso
        except ImportError:
            self.solver = SolverLU