Example #1
0
def calcERT(ertScheme, rhoa):
    ert = ERT(verbose=False)

    solutionName = createCacheName('ERT') + "-" + str(ertScheme.size()) + \
        "-" + str(len(rhoa))
    try:
        ertModels = pg.load(solutionName + '.bmat')
        ertMesh = pg.load(solutionName + '.bms')
    except Exception as e:
        print(e)
        print("Building .... ")
        ertModels = ert.invert(ertScheme,
                               values=rhoa,
                               maxiter=10,
                               lambd=50,
                               paraDX=0.5,
                               paraDZ=0.5,
                               nLayers=20,
                               paraDepth=15,
                               verbose=1)
        ertMesh = ert.fop.regionManager().paraDomain()
        ertModels.save(solutionName + '.bmat')
        ertMesh.save(solutionName)

    ertRatioModels = pg.RMatrix(ertModels)
    for i in range(len(ertModels)):
        ertRatioModels[i] /= ertModels[0]

    return ertMesh, ertModels, ertRatioModels
def createAnimation(out, stream=False):
    mesh = pg.load(out + '.bms')
    meshC = pg.load(out + 'C.bms')
    densMatrix = pg.load(out + 'density.bmat')
    vels = np.load(out + 'velo.bmat.npy')

    cMin = 9e99
    cMax = -9e99
    for d in densMatrix:
        cMin = min(cMin, pg.min(d))
        cMax = max(cMax, pg.max(d))

    if stream:
        pg.viewer.mpl.saveAnimation(mesh,
                                    densMatrix,
                                    out + '-stream',
                                    plc=None,
                                    label='',
                                    cMin=cMin,
                                    cMax=cMax,
                                    logScale=False,
                                    cmap=None,
                                    vData=vels,
                                    coarseMesh=meshC,
                                    color='white')
    else:
        pg.viewer.mpl.saveAnimation(mesh,
                                    densMatrix,
                                    out,
                                    plc=None,
                                    label='',
                                    cMin=cMin,
                                    cMax=cMax,
                                    logScale=False,
                                    cmap=None)
Example #3
0
def _invert_(fName, mesh, lam=20, absoluteError=0.0005, relativeError=0.05, opt=False, chi2_lims=(0.9, 1.1), ref=False, ref_fName=None, i_max=10, blocky=False):
    """ args are passed to ERTManager, run optimize inversion, and saves to para_mesh """
    opening_string = '\n\n\nfName: {}\nOpt: {}\nlam: {}\n'.format(fName, opt, lam)
    print(opening_string)
    data = pg.load(fName)
    ertmgr = ert.ERTManager()
    data['err'] = ertmgr.estimateError(data, absoluteError=absoluteError, relativeError=relativeError)
    mesh = pg.load(mesh)
    ertmgr.fop.setMesh(mesh)
    ertmgr.inv.inv.setBlockyModel(blocky)

    if opt:
        chi_min = chi2_lims[0]
        chi_max = chi2_lims[1]
    else:
        chi_min = 0
        chi_max = np.inf

    print('ref is: ', ref)
    if ref:
        ref_model_vtk = pg.load(ref_fName)
        ref_model = ref_model_vtk.exportData('res')
        smr = True
    else:
        model = np.ones(len(mesh.cells()))
        smr = False

    print('preparing for inversion while loop')
    lam_record = []
    chi2_record = []
    model_record = []
    chi2 = -1

    while not chi_min < chi2 < chi_max:
        if len(chi2_record) > i_max:
            raise ValueError("optimization reached maximum number of runs, i_max: ", i_max)
        if chi2_record:
            lam = update_lam(chi2_record, lam_record)

        if ref:
            _ = ertmgr.invert(
                data=data, lam=lam,
                startModel=ref_model, startModelIsReference=smr,
                verbose=True,
            )
        else:
            _ = ertmgr.invert(
                data=data, lam=lam,
                verbose=True,
            )

        chi2 = ertmgr.inv.chi2()
        chi2_record.append(chi2)
        model = ertmgr.inv.model
        model_record.append(model)
        lam_record.append(lam)
        print('chi2 record: ', chi2_record)
        print('lambda record: ', lam_record)
    return(ertmgr, lam_record, chi2_record, model_record)
Example #4
0
    def test_meshIO(self):
        # text bms version v3 which stores geometry flag
        mesh = pg.Mesh(2, isGeometry=True)
        mesh.save('_tmp')
        mesh2 = pg.load('_tmp.bms', verbose=True)

        self.assertEqual(mesh.isGeometry(), mesh2.isGeometry())
Example #5
0
    def setMesh(self, mesh, refine=True):
        """Set the internal mesh for this Manager.

        Inject the mesh in the internal fop und inv.

        Initialize RegionManager.
        For more than two regions the first is assumed to be background.

        Optional the forward mesh can be refined for higher numerical accuracy.

        Parameters
        ----------

        DOCUMENTME!!!

        """
        if isinstance(mesh, str):
            mesh = pg.load(mesh)

        if self.verbose:
            print(mesh)

        self.mesh = pg.Mesh(mesh)
        self.mesh.createNeighbourInfos()

        self.fop.setMesh(self.mesh)
        self.fop.regionManager().setConstraintType(1)
        if self.fop.regionManager().regionCount() > 1:
            self.fop.regionManager().region(1).setBackground(True)
#            self.fop.regionManager().regions().begin().second.setBackground(1)

        self.fop.createRefinedForwardMesh(refine)
        self.paraDomain = self.fop.regionManager().paraDomain()
        self.inv.setForwardOperator(self.fop)  # necessary? CR: check this
Example #6
0
def showModel(outPath):

    # geom = pg.load('synth/' + 'synthGeom.bms')

    # pd = pg.load(outPath + '/paraDomain.bms')
    paraMesh = pg.load(outPath + '/paraMesh.bms')
    model = pg.load(outPath + "/model.vector")

    fopMesh = pg.load(outPath + "fopMesh.bms")
    fopModel = pg.load(outPath + "fopModel.vector")

    allModel = np.zeros(len(model) + 2)
    allModel[2:] = model

    #    allModel[0] = fopModel[fopMesh.findCellByMarker(
    #        pg.MARKER_FIXEDVALUE_REGION - 0)[0].id()]
    allModel[1] = fopModel[fopMesh.findCellByMarker(
        pg.MARKER_FIXEDVALUE_REGION - 1)[0].id()]

    ax = savefig(paraMesh,
                 None,
                 allModel[paraMesh.cellMarkers()],
                 'Hydraulic conductivity $K$ in m$/$s',
                 cMin=1e-5,
                 cMax=1e-2,
                 nLevs=4,
                 cMap='viridis')
    pg.wait()
    pg.show(fopMesh, ax=ax, linewidth=0.2)

    paraMesh.createNeighborInfos()
    bs = []
    for b in paraMesh.boundaries():
        if b.leftCell() and b.rightCell():
            if b.leftCell().marker() > 1 or b.rightCell().marker() > 1:
                bs.append(b)
    pg.viewer.mpl.drawSelectedMeshBoundaries(ax,
                                             bs,
                                             color=(0.0, 0.0, 0.0, 1.0),
                                             linewidth=1.0)

    pg.viewer.mpl.saveFigure(ax.figure, 'hydrInversionModel')

    print('Done!')
    pg.wait()
Example #7
0
    def test_meshBMS(self):
        # text bms version v3 which stores geometry flag
        mesh = pg.Mesh(2, isGeometry=True)

        import tempfile as tmp
        _, fn = tmp.mkstemp()

        mesh.save(fn)
        mesh2 = pg.load(fn + '.bms', verbose=True)

        self.assertEqual(mesh.isGeometry(), mesh2.isGeometry())
Example #8
0
def exportSens(meshfile, sensMatrix, outFilename, dataID, tol=1e-5,
               save=False, saveTo='.'):
    mesh = g.Mesh(meshfile)
    mesh.showInfos()

    S = g.RMatrix();
    g.load(S, sensMatrix)
    print(S.rows())
    print(S.cols())

    savePath = os.path.abspath(saveTo)
    try:
        os.makedirs(savePath)
    except OSError:
        if os.path.exists(savePath):
            # We are nearly safe
            pass
        else:   
            # There was an error on creation, so make sure we know about it
            raise

    
    if dataID == -1:
        for i in range(0, S.rows()):
            d = b.prepExportSensitivityData(mesh , S[i], tol)
            
            name = os.path.join(savePath, outFilename + "-" + str(i) + ".vec")
    
            if save:
                print(name)
                g.save(d, name)
            mesh.addExportData(name, d)
    else:
        d = b.prepExportSensitivityData(mesh , S[dataID], tol)
        name = os.path.join(savePath, outFilename + "-" + str(dataID) + ".vec")
        if save:
            print(name)
            g.save(d, name)
        mesh.addExportData(name, d)

    mesh.exportVTK(outFilename)
def showModel(outPath):

    # geom = pg.load('synth/' + 'synthGeom.bms')

    # pd = pg.load(outPath + '/paraDomain.bms')
    paraMesh = pg.load(outPath + '/paraMesh.bms')
    model = pg.load(outPath + "/model.vector")

    fopMesh = pg.load(outPath + "fopMesh.bms")
    fopModel = pg.load(outPath + "fopModel.vector")

    allModel = np.zeros(len(model)+2)
    allModel[2:] = model

#    allModel[0] = fopModel[fopMesh.findCellByMarker(
#        pg.MARKER_FIXEDVALUE_REGION - 0)[0].id()]
    allModel[1] = fopModel[fopMesh.findCellByMarker(
        pg.MARKER_FIXEDVALUE_REGION - 1)[0].id()]

    ax = savefig(paraMesh, None, allModel[paraMesh.cellMarkers()],
                 'Hydraulic conductivity $K$ in m$/$s',
                 cMin=1e-5, cMax=1e-2,
                 nLevs=4, cMap='viridis')
    pg.wait()
    pg.show(fopMesh, ax=ax, linewidth=0.2)

    paraMesh.createNeighbourInfos()
    bs = []
    for b in paraMesh.boundaries():
        if b.leftCell() and b.rightCell():
            if b.leftCell().marker() > 1 or b.rightCell().marker() > 1:
                bs.append(b)
    pg.mplviewer.drawSelectedMeshBoundaries(
            ax, bs, color=(0.0, 0.0, 0.0, 1.0), linewidth=1.0)

    pg.mplviewer.saveFigure(ax.figure, 'hydrInversionModel')

    print('Done!')
    pg.wait()
Example #10
0
def generateDataPDF(data, filename="data.pdf"):
    """Generate a multi-page pdf showing all data properties."""
    if isinstance(data, str):
        filename = data.replace('.txt', '-data.pdf')
        data = pg.load(data)

    with PdfPages(filename) as pdf:
        fig, ax = plt.subplots()
        for tok in data.tokenList().split():
            if data.haveData(tok):
                pg.show(data, tok, ax=ax, label=tok)
                fig.savefig(pdf, format='pdf')
                ax.cla()
def createAnimation(out, stream=False):
    mesh = pg.load(out + '.bms')
    meshC = pg.load(out + 'C.bms')
    densMatrix = pg.load(out + 'density.bmat')
    vels = np.load(out+'velo.bmat.npy')
    
    cMin= 9e99
    cMax= -9e99
    for d in densMatrix:
        cMin = min(cMin, pg.min(d))
        cMax = max(cMax, pg.max(d))
        
    if stream:
        pg.mplviewer.saveAnimation(mesh, densMatrix, out + '-stream',
                               plc=None, label='',
                               cMin=cMin, cMax=cMax, logScale=False, cmap=None,
                               vData=vels, coarseMesh=meshC, color='white'
                               )
    else:
        pg.mplviewer.saveAnimation(mesh, densMatrix, out,
                               plc=None, label='',
                               cMin=cMin, cMax=cMax, logScale=False, cmap=None)
Example #12
0
def getExampleFile(path, load=False, verbose=False):
    """Download and return a filename to the example repository.

    TODO:
        checksum or hash test for the content.

    Parameters
    ----------
    path: str
        Path to the remote repo
    load: bool [False]
        Try to load the file and return the relating object.

    Returns
    -------
    filename: str
        Filename to the data content
    data: obj
        content of the path if load is True
    """
    url = exampleDataRepository + path

    fileName = os.path.join(tempfile.gettempdir(), gimliExampleDataPath, path)

    if not os.path.exists(fileName):
        if verbose:
            pg.info("Getting:", fileName)
        os.makedirs(os.path.dirname(fileName), exist_ok=True)
        tmp = urlretrieve(url, fileName)
    else:
        if verbose:
            pg.info("File already exists:", fileName)

    if load:
        print(fileName)
        d = pg.load(fileName)
        return pg.load(fileName)
    return fileName
Example #13
0
def calcERT(ertScheme, rhoa):
    ert = ERT(verbose=False)
    
    solutionName = createCacheName('ERT')+ "-" + str(ertScheme.size())+ "-" + str(len(rhoa))
    try:   
        ertModels = pg.load(solutionName + '.bmat')
        ertMesh = pg.load(solutionName + '.bms')
    except Exception as e:
        print(e)
        print("Building .... ")
        ertModels = ert.invert(ertScheme, values=rhoa, maxiter=10, lambd=50, 
                               paraDX=0.5, paraDZ= 0.5, 
                               nLayers=20, paraDepth=15,
                               verbose=1)
        ertMesh=ert.fop.regionManager().paraDomain()
        ertModels.save(solutionName + '.bmat')
        ertMesh.save(solutionName)
        
    ertRatioModels = pg.RMatrix(ertModels)
    for i in range(len(ertModels)):
        ertRatioModels[i] /= ertModels[0]
    
    return ertMesh, ertModels, ertRatioModels
Example #14
0
    def test_VTK_DataRead(self):
        grid = pg.createGrid(np.arange(4), np.arange(3), np.arange(2))
        cM = np.arange(grid.cellCount())
        grid.setCellMarkers(cM)

        import tempfile as tmp
        _, fn = tmp.mkstemp(suffix='.vtk')

        grid.exportVTK(fn)
        mesh = pg.load(fn)
        np.testing.assert_array_equal(mesh.cellMarkers(), cM)
        np.testing.assert_array_equal(mesh['Marker'], cM)

        mesh = pg.meshtools.readMeshIO(fn)
        np.testing.assert_array_equal(mesh['Marker'], cM)

        fn = pg.getExampleFile('meshes/test_tetgen_dataCol.vtk')
        mesh = pg.load(fn)
        np.testing.assert_array_equal(mesh.cellMarkers(), cM)
        np.testing.assert_array_equal(mesh['Marker'], cM)

        mesh = pg.meshtools.readMeshIO(fn)
        np.testing.assert_array_equal(mesh['Marker'], cM)
Example #15
0
def plot_inv(fvtk, fpng, cm, cM):
    mesh = pg.load(fvtk)
    # embed()
    rho = mesh.data('res')
    cov = mesh.data('cov')
    _ = plt.figure(figsize=(10, 5))
    ax = plt.gca()
    ax, cbar = pg.show(mesh=mesh, data=rho, coverage=cov, ax=ax, hold=True,
                       cMap='jet', cMin=cm, cMax=cM, colorBar=True,
                       showelectrodes=True, label='resistivity [ohm m]')
    ax.set_xlabel('m')
    ax.set_ylabel('m')
    plt.tight_layout()
    plt.savefig(fpng, dpi=600)
Example #16
0
def load(fileName, verbose=False, **kwargs):
    """Shortcut to load ERT data.

    Import Data and try to assume the file format.
    Additionally to unified data format we support the wide-spread res2dinv
    format as well as ASCII column files generated by the processing software
    of various instruments (ABEM LS, Syscal Pro, Resecs, ?)

    If this fails, install pybert and use its auto importer pybert.importData.

    Parameters
    ----------
    fileName: str

    Returns
    -------
    data: pg.DataContainer

    """

    data = pg.load(fileName)
    if isinstance(data, pg.DataContainerERT):
        return data

    try:
        pg.info("could not read unified data format for ERT ... try res2dinv")
        data = importRes2dInv(fileName)
        return data
    except:
        pg.info("could not read res2dinv ... try Ascii columns")

    try:
        data = importAsciiColumns(fileName)
        return data
    except Exception as e:
        pg.info("Failed importing Ascii column file. Consider using pybert.")
        pg.info(e)

    if verbose:
        pg.info("Try to import using pybert .. if available")

    pb = pg.optImport('pybert')
    data = pb.loadData(fileName)

    if isinstance(data, pg.DataContainerERT):
        return data

    pg.critical("Can't import ERT data file.", fileName)
Example #17
0
def simulateOld(mesh,
                scheme,
                res,
                sr=True,
                useBert=True,
                verbose=False,
                **kwargs):
    """ERT forward calculation.

    Convenience function to use the ERT modelling operator
    if you like static functions.

    See :py:mod:`pygimli.ert.ERTManager.simulate` for description
    of the arguments.

    Parameters
    ----------
    mesh: :gimliapi:`GIMLI::Mesh` | str
        Modelling domain. Mesh can be a file name here.
    scheme: :gimliapi:`GIMLI::DataContainerERT` | str
        Data configuration. Scheme can be a file name here.
    res: see :py:mod:`pygimli.ert.ERTManager.simulate`
        Resistivity distribution.
    sr: bool [True]
        Use singularity removal technique.
    useBert: bool [True]
        Use Bert forward operator instead of the reference implementation.
    **kwargs:
        Forwarded to :py:mod:`pygimli.ert.ERTManager.simulate`
    """
    from .ertManager import ERTManager
    ert = ERTManager(useBert=useBert, sr=sr, verbose=verbose)

    if isinstance(mesh, str):
        mesh = pg.load(mesh)

    if isinstance(scheme, str):
        scheme = pg.physics.ert.load(scheme)

    return ert.simulate(mesh=mesh,
                        res=res,
                        scheme=scheme,
                        verbose=verbose,
                        **kwargs)
Example #18
0
    def test_io_STL(self):
        try:
            import tempfile as tmp
        except ImportError:
            return

        str = r"""solid name
    facet normal 1.000000e+000 0.000000e+000 0.000000e+000 
        outer loop 
            vertex   6.100000e+002 -1.046773e+002 -2.818708e+003 
            vertex   6.100000e+002 -1.249950e+002 -2.814064e+003 
            vertex   6.100000e+002 -2.507565e+000 -2.930000e+003 
        endloop
    endfacet
endsolid
solid name
    facet normal -2.568735e-007 1.396183e-002 -9.999025e-001
        outer loop
            vertex   1.350000e+002 3.839764e+001 -2.929429e+003
            vertex   6.100000e+002 7.930283e+001 -2.928858e+003
            vertex   6.100000e+002 -2.507565e+000 -2.930000e+003
        endloop
    endfacet
endsolid"""
        _, fileName = tmp.mkstemp(suffix='.stl')
        fi = open(fileName, 'w')
        fi.write(str)
        fi.close()

        mesh = pg.load(fileName, verbose=True)

        np.testing.assert_equal(mesh.cellCount(), 0)
        np.testing.assert_equal(mesh.nodeCount(), 5)
        np.testing.assert_equal(mesh.boundaryCount(), 2)

        np.testing.assert_equal(
            np.array(pg.unique(pg.sort(mesh.boundaryMarkers()))), [0, 1])

        try:
            os.remove(fileName)
        except:
            print("can't remove:", fileName)
Example #19
0
    def test_io_STL(self):
        try:
            import tempfile as tmp
        except ImportError:
            return

        str = r"""solid name
    facet normal 1.000000e+000 0.000000e+000 0.000000e+000 
        outer loop 
            vertex   6.100000e+002 -1.046773e+002 -2.818708e+003 
            vertex   6.100000e+002 -1.249950e+002 -2.814064e+003 
            vertex   6.100000e+002 -2.507565e+000 -2.930000e+003 
        endloop
    endfacet
endsolid
solid name
    facet normal -2.568735e-007 1.396183e-002 -9.999025e-001
        outer loop
            vertex   1.350000e+002 3.839764e+001 -2.929429e+003
            vertex   6.100000e+002 7.930283e+001 -2.928858e+003
            vertex   6.100000e+002 -2.507565e+000 -2.930000e+003
        endloop
    endfacet
endsolid"""
        _, fileName = tmp.mkstemp(suffix='.stl')
        fi = open(fileName, 'w')
        fi.write(str)
        fi.close()

        mesh = pg.load(fileName, verbose=True)

        np.testing.assert_equal(mesh.cellCount(), 0)
        np.testing.assert_equal(mesh.nodeCount(), 5)
        np.testing.assert_equal(mesh.boundaryCount(), 2)

        np.testing.assert_equal(np.array(pg.unique(pg.sort(mesh.boundaryMarkers()))),
                               [0, 1])
        
        try:
            os.remove(fileName)
        except:
            print("can't remove:", fileName)
Example #20
0
def load(fileName, verbose=False, **kwargs):
    """Shortcut to load ERT data.

    Import Data and try to assume the file format.
    Use pybert importer if installed.

    Parameters
    ----------
    fileName: str

    Returns
    -------
    data: pg.DataContainer

    """  
    
    data = pg.load(fileName)
    
    if isinstance(data, pg.DataContainerERT):   
        return data
Example #21
0
"""
Functions to call PyGimli from geotransdens
authors: AAP, JHG
06-2020 
"""

import numpy as np
import pygimli as pg
import pybert as pb
import time
import csv
from pygimli.utils import gmat2numpy

global meshERT, meshTD
meshERT = pg.load('ERTMESH.bms')
start = time.time()
meshTD = pg.load('HYDROMESH.vtk')
end = time.time()
#print("Time to load the VTK file and create TD mesh: "+str(end - start)+"seconds")


def interpolant():
    ''' Creates interpolant between ERT mesh and TD mesh'''
    start = time.time()
    interpMat = meshERT.interpolationMatrix(meshTD.positions())
    end = time.time()
    print("Time to create interpolant  " + str(end - start) + " seconds")
    return interpMat


def interpolate_jacobian(inVector, interpolant=None):
Example #22
0
def showSynthData(synthPath):
    geom = pg.load(synthPath + 'synthGeom.bms')
    mesh = pg.load(synthPath + 'synth.bms')
    k = np.load(synthPath + 'synthK.npy')
    vel = np.load(synthPath + 'synthVel.npy')
    sat = np.load(synthPath + 'synthSat.npy')

    scheme = pg.DataContainer(synthPath + 'synth.shm', 'a b m n')
    #    rhoaR = np.load(synthPath + 'synthRhoaRatio.npy')
    #    rhoa = np.load(synthPath + 'synthRhoa.npy')

    row = 3
    col = 2

    # START model perm + input
    savefig(mesh,
            geom,
            k,
            'Hydraulic conductivity $K$ in m$/$s',
            out='hydrConductModel',
            cMin=1e-5,
            cMax=1e-2,
            nLevs=4,
            cmap='viridis')

    # START velocity
    axVel, _ = pg.show(mesh,
                       np.sqrt(vel[0]**2 + vel[1]**2),
                       logScale=0,
                       colorBar=1,
                       pad=0.55,
                       label='Velocity $|v|$ in m$/$s',
                       hold=1)

    meshC = pg.meshtools.createMesh(geom, quality=33, area=0.5, smooth=[1, 10])
    pg.show(mesh,
            data=vel,
            ax=axVel,
            coarseMesh=meshC,
            color='black',
            linewidth=0.5,
            dropTol=1e-6)
    pg.show(geom, ax=axVel, fillRegion=False)
    saveAxes(axVel, 'hydrVelocity', adjust=True)

    # START Saturation
    axs = plt.subplots(row,
                       col,
                       sharex=True,
                       sharey=True,
                       figsize=(10. * 0.65, 7.25 * 0.65))[1].flatten()

    satScale = 0.001
    for i, a in enumerate(axs):
        savefig(
            mesh,
            geom,
            sat[i * len(sat) / (len(axs)) + 1] *
            satScale,  # /mesh.cellSizes(),
            label=None,
            out=None,
            cMin=0,
            cMax=2.5,
            ax=a,
            adjust=True)
        pg.viewer.mpl.drawSensors(a,
                                  scheme.sensorPositions(),
                                  diam=0.15,
                                  color='green')

        add_inner_title(a, "t = %d days" % days[i], 3, color="w")

        if i < (row - 1) * col:
            a.set_xlabel('')
        if i % col:
            a.set_ylabel('')
        a.set_ylim([-16, 0])

    pg.viewer.mpl.saveFigure(axs[0].figure, "hydrSaturation")
    pg.viewer.mpl.createColorBarOnly(cMin=0,
                                     cMax=2.5,
                                     logScale=False,
                                     cMap='Spectral_r',
                                     nLevs=5,
                                     label=r'Concentration $c$ in g$/$l',
                                     orientation='horizontal',
                                     savefig='hydrSaturationCbar')

    # END Saturation
    pg.wait()
Example #23
0
This tutorial shows ... 
"""

import pygimli as pg
import numpy as np

###############################################################################
#

data = pg.DataContainer()
print(data)
data.setSensorPosition(0, (0.0, 0.0, 0))
print(data)
#define global datasize
data.resize(4)
data.set('a', [1.0, 2.0, 3.0, 4.0])


data.save("dummy.dat")
data = pg.load("dummy.dat")
print(data)

filename = "dummy.dat"
data = pg.load(filename)
print(data)

print(data('a'))


Example #24
0
import matplotlib.pyplot as plt
import numpy as np
from matplotlib import ticker
from mpl_toolkits.axes_grid1 import ImageGrid

import pygimli as pg
from fpinv import add_inner_title, logFormat, rst_cov, set_style
from pygimli.viewer.mpl import drawModel
from settings import plot_boreholes

fs = 5.5
set_style(fs, style="seaborn-dark")

# Load data
mesh1 = pg.load("paraDomain_1.bms")
mesh2 = pg.load("paraDomain_2.bms")
est = np.load("conventional.npz")
joint = np.load("joint_inversion_1.npz")
joint2 = np.load("joint_inversion_2.npz")
sensors = np.loadtxt("sensors.npy")


def to_sat(fw, fi, fa, fr):
    phi = 1 - fr
    return fw / phi, fi / phi, fa / phi


# Conventional inversion
vel, rho, fa, fi, fw, cov = est["vel"], est["rho"], est["fa"], est["fi"], est[
    "fw"], est["mask"]
Example #25
0
def showVec(lastOnly, cmap):
    plt.close('all')
    meshInv = pg.load('mesh\meshParaDomain.bms')
    vectors = glob.glob("model_*.vector")
    # Get the final model vector(e.g. the highest number)
    v = np.zeros(len(vectors))
    for s in enumerate(vectors):
        v[s[0]] = int(re.split(r'[_.]', s[1])[1])
    i0 = vectors[np.where(v == 0)[0][0]]
    i1 = vectors[np.where(v == 1)[0][0]]
    iMax = vectors[np.where(v == v.max())[0][0]]
    if lastOnly == 1:
        vectors = iMax
    else:
        # Get the Initial model, first iteration, and last iteration only
        vectors = [i0, i1, iMax]

    print(meshInv.cellCount())
    if type(vectors) == str:
        ax = plt.gca()
        datInv = pg.load(vectors)
        print(datInv.size())
        dataplot, _ = pg.show(ax=ax,
                              mesh=meshInv,
                              data=datInv,
                              cmap=cmap,
                              showMesh=0,
                              cMin=1,
                              cMax=1000,
                              colorBar=True)
        # Formatting
        ax.set_xlim(left=-10, right=375)
        ax.set_ylim(top=40, bottom=-50)
        ax.minorticks_on()
        ax.set_title(os.getcwd() + ' -- ' + vectors, loc='left')
        ax.set_ylabel('Elevation (mASL)')
        ax.set_xlabel('Distance (m)')
        dataplot.plot(dataplot.get_xlim(), [-30, -30], color='black')
        dataplot.plot(dataplot.get_xlim(), [0, 0], color='black')
        fig = plt.gcf()
        fig.set_size_inches(19, 5)
        fig.tight_layout()
        plt.show()
    if type(vectors) == list:
        fig, ax = plt.subplots(len(vectors), 1, sharex='all', sharey='all')
        for vecName in enumerate(vectors):
            print(vecName)
            #        ax = plt.gca()
            datInv = pg.load(vecName[1])
            print(datInv.size())
            dataplot, cb = pg.show(ax=ax[vecName[0]],
                                   mesh=meshInv,
                                   data=datInv,
                                   cmap=cmap,
                                   showMesh=0,
                                   cMin=1,
                                   cMax=1000,
                                   colorBar=True)
            ax[vecName[0]].set_xlim(left=-10, right=450)
            ax[vecName[0]].set_ylim(top=40, bottom=-50)
            ax[vecName[0]].minorticks_on()
            ax[vecName[0]].set_title(os.getcwd() + ' -- ' + vecName[1],
                                     loc='left')
            ax[vecName[0]].set_ylabel('Elevation (mASL)')
            ax[vecName[0]].set_xlabel('Distance (m)')
            dataplot.plot(dataplot.get_xlim(), [-30, -30], color='black')
            dataplot.plot(dataplot.get_xlim(), [0, 0], color='black')
        fig = plt.gcf()
        fig.set_size_inches(15, 11)
        fig.tight_layout()
    meshInv.cellCount() == datInv.size()
    filename = os.path.basename(os.path.normpath(os.getcwd()))
    i = 0
    while os.path.exists('{}{:d}.png'.format(filename, i)):
        i += 1
    plt.savefig('{}_({:d}).png'.format(filename, i), dpi=300)
    plt.savefig('{}_({:d}).svg'.format(filename, i))
Example #26
0
import pybert as pb
import pygimli as pg

# compute k, err, rhoa
data = pb.DataContainerERT("ldp2.dat")
data.set("k", pg.geometricFactors(data))
data.set(
    "err",
    pb.Resistivity.estimateError(data,
                                 absoluteUError=0.0001,
                                 relativeError=0.03))
data.set("rhoa", data("u") / data("i") * data("k"))

# mesh
mesh = pg.load("bukov.bms")

# inversion
res = pb.Resistivity(data)
res.setMesh(mesh)
#res.setMesh(mesh, refine=False)
res.invert()
#res.showResult()
res.saveResult("in_python_res")  # ve verzi 2.2.9 spadne, ale vysledky ulozi

#pg.wait()
Example #27
0
    plt.savefig('{}_({:d}).svg'.format(filename, i))


#    plt.savefig('{}{:d}.eps'.format(filename, i),format = 'eps',dpi=500)

#    manager.window.showMaximized()

showVec(lastOnly=1, cmap='jet_r')

#%%
defMap = plt.get_cmap('jet_r')
old_cdict = defMap._segmentdata
new_cditc = {
    'blue': [(0.0, 0.86, 0.86), (0.05, 0, 0), (0.35, 0, 0),
             (0.6599999999999999, 1, 1), (0.89, 1, 1), (1.0, 0.5, 0.5)],
    'green': [(0.0, 0.62, 0.62), (0.05, 0, 0), (0.08999999999999997, 0, 0),
              (0.36, 1, 1), (0.625, 1, 1), (0.875, 0, 0), (1.0, 0, 0)],
    'red': [(0.0, 0.86, 0.86), (0.05, 0.5, 0.5), (0.10999999999999999, 1, 1),
            (0.33999999999999997, 1, 1), (0.65, 0, 0), (1.0, 0, 0)]
}
my_cmap = matplotlib.colors.LinearSegmentedColormap('my_colormap', new_cditc,
                                                    256)
meshInv = pg.load("mesh/meshParaDomain.bms")
datInv = pg.load("model_15.vector")
dataplot, _ = pg.show(mesh=meshInv,
                      data=datInv,
                      cmap=my_cmap,
                      cMin=1,
                      cMax=1000,
                      colorBar=True)
Example #28
0
import sys
import numpy as np
import pygimli as pg
from fpinv import FourPhaseModel

mesh = pg.load("mesh.bms")

if len(sys.argv) > 1:
    pd = pg.load("paraDomain_2.bms")
    resinv = np.loadtxt("res_conventional_2.dat")
    vest = np.loadtxt("vel_conventional_2.dat")
    scenario = "Fig2"
    pg.boxprint(scenario)
    phi = 0.3  # Porosity assumed to calculate fi, fa, fw with 4PM
else:
    pd = pg.load("paraDomain_1.bms")
    resinv = np.loadtxt("res_conventional_1.dat")
    vest = np.loadtxt("vel_conventional_1.dat")
    scenario = "Fig1"
    pg.boxprint(scenario)
    frtrue = np.load("true_model.npz")["fr"]

    phi = []
    for cell in pd.cells():
        idx = mesh.findCell(cell.center()).id()
        phi.append(1 - frtrue[idx])
    phi = np.array(phi)

# Save some stuff
fpm = FourPhaseModel(phi=phi)
fae, fie, fwe, maske = fpm.all(resinv, vest)
import numpy as np

import pybert as pb
import pygimli as pg
import pygimli.meshtools as mt

from pybert.manager import ERTManager
from pygimli.physics import Refraction
from pygimli.physics.traveltime import createRAData

mesh = pg.load("mesh.bms")
sensors = np.load("sensors.npy", allow_pickle=True)
rhotrue = np.loadtxt("rhotrue.dat")
veltrue = np.loadtxt("veltrue.dat")

pg.boxprint("Simulate apparent resistivities")

# Create more realistic data set
ertScheme = pb.createData(sensors, "dd", spacings=[1, 2, 4])
k = pb.geometricFactors(ertScheme)
ertScheme.markInvalid(pg.abs(k) > 5000)
ertScheme.removeInvalid()

ert = ERTManager()

# Create suitable mesh for ert forward calculation
# NOTE: In the published results paraMaxCellSize=1.0 was used, which is
# increased here to allow testing on Continuous Integration services.
meshERTFWD = mt.createParaMesh(ertScheme,
                               quality=33.5,
                               paraMaxCellSize=2.0,
Example #30
0
dt = h * 0.5/max(velocities)
times = np.arange(0.0, tmax, dt)
print(mesh, "h:", h, "dt:", dt, "n_t", len(times))

uSource = ricker(f0, times, t0=1./f0)

solutionName = 'uGridBig-'+ str(dt) + '-' + str(h)

nx = len(x)
ny = len(y)
dt = times[1] - times[0]

try:
    print("load:", solutionName)
    u = pg.load(solutionName + '.bmat')
except Exception as e:
    print(e)
    u = solvePressureWave(mesh, velocities, times, sourcePos=(0.0, 0.0),
                          uSource=uSource, verbose=10)
    u.save(solutionName + '.bmat')

print(u)

fig = plt.figure()
ax = fig.add_subplot(1,1,1)
Ustep = len(u)/2
field = drawWaveField(ax, u[Ustep, :])

plt.show()
        pg.boxprint("%d / %d" % (i + 1, npar))
        print(Fx.flat[i], end=" ")
        Fx1 = np.copy(Fx)
        Fx1.flat[i] += df
        dataERT1, dataSRT1 = forward4PM(meshERT, meshRST, schemeERT, schemeSRT,
                                        Fx1)
        jacERT[:, i] = (np.log(dataERT1('rhoa')) -
                        np.log(dataERT('rhoa'))) / df / errorERT
        jacSRT[:, i] = (dataSRT1('t') - dataSRT('t')) / df / errorSRT

    print("ready.")
    return jacERT, jacSRT


# load synthetic mesh
mesh = pg.load("mesh.bms")
meshRST = pg.load("paraDomain_2.bms")
meshRST.createSecondaryNodes(3)
meshERT = pg.load("meshERT_2.bms")

for cell in meshRST.cells():
    NN = mesh.findCell(cell.center())
    cell.setMarker(mesh.cellMarkers()[NN.id()])

for cell in meshERT.cells():
    NN = mesh.findCell(cell.center())
    if NN:
        cell.setMarker(mesh.cellMarkers()[NN.id()])
    else:
        cell.setMarker(len(np.unique(mesh.cellMarkers())))  # triangle boundary
Example #32
0
dt = h * 0.5 / max(velocities)
times = np.arange(0.0, tmax, dt)
print(mesh, "h:", h, "dt:", dt, "n_t", len(times))

uSource = ricker(f0, times, t0=1. / f0)

solutionName = 'uGridBig-' + str(dt) + '-' + str(h)

nx = len(x)
ny = len(y)
dt = times[1] - times[0]

try:
    print("load:", solutionName)
    u = pg.load(solutionName + '.bmat')
except Exception as e:
    print(e)
    u = solvePressureWave(mesh,
                          velocities,
                          times,
                          sourcePos=(0.0, 0.0),
                          uSource=uSource,
                          verbose=10)
    u.save(solutionName + '.bmat')

print(u)

fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
Ustep = len(u) / 2
Example #33
0
def calcSeismics(meshIn, vP):
    """Do seismic computations."""
    meshSeis = meshIn.createH2()
    meshSeis = mt.appendTriangleBoundary(
            meshSeis, xbound=25, ybound=22.0, marker=1, quality=32.0, area=0.3,
            smooth=True, markerBoundary=1, isSubSurface=False, verbose=False)
    print(meshSeis)
    meshSeis = meshSeis.createH2()
    meshSeis = meshSeis.createH2()
    # meshSeis = meshSeis.createP2()

    meshSeis.smooth(1, 1, 1, 4)
    vP = pg.interpolate(meshIn, vP, meshSeis.cellCenters())

    mesh = meshSeis
    vP = pg.solver.fillEmptyToCellArray(mesh, vP)

    print(mesh)
    # ax, cbar = pg.show(mesh, data=vP)
    # pg.show(mesh, axes=ax)

    geophPointsX = np.arange(-19, 19.1, 1)
    geophPoints = np.vstack((geophPointsX, np.zeros(len(geophPointsX)))).T
    sourcePos = geophPoints[4]

    c = mesh.findCell(sourcePos)
    h1 = pg.findBoundary(c.boundaryNodes(0)).size()
    h2 = pg.findBoundary(c.boundaryNodes(1)).size()
    h3 = pg.findBoundary(c.boundaryNodes(2)).size()
    print([h1, h2, h3])
    h = pg.median([h1, h2, h3])

    # h = pg.median(mesh.boundarySizes())
    f0scale = 0.25
    cfl = 0.5
    dt = cfl * h / max(vP)
    print("Courant-Friedrich-Lewy number:", cfl)

    tmax = 40./min(vP)
    times = np.arange(0.0, tmax, dt)

    solutionName = createCacheName('seis', mesh, times) + "cfl-" + str(cfl)
    try:
        # u = pg.load(solutionName + '.bmat')
        uI = pg.load(solutionName + 'I.bmat')
    except Exception as e:
        print(e)
        f0 = f0scale * 1./dt
        print("h:", round(h, 2),
              "dt:", round(dt, 5),
              "1/dt:", round(1/dt, 1),
              "f0", round(f0, 2),
              "Wavelength: ", round(max(vP)/f0, 2), " m")

        uSource = ricker(times, f0, t0=1./f0)

        plt.figure()
        plt.plot(times, uSource, '-*')
        plt.show(block=0)
        plt.pause(0.01)
        u = solvePressureWave(mesh, vP, times, sourcePos=sourcePos,
                              uSource=uSource, verbose=10)

        u.save(solutionName)
        uI = pg.RMatrix()
        print("interpolate node to cell data ... ")
        pg.interpolate(mesh, u, mesh.cellCenters(), uI)
        print("... done")
        uI.save(solutionName+'I')

#    nodes = [mesh.findNearestNode(p) for p in geophPoints]
#    fig = plt.figure()
#    axs = fig.add_subplot(1,1,1)
#    drawSeismogramm(axs, mesh, u, nodes, dt, i=None)
#    plt.show()

    dpi = 92
    scale = 1
    fig = plt.figure(facecolor='white',
                     figsize=(scale*800/dpi, scale*490/dpi), dpi=dpi)
    ax = fig.add_subplot(1, 1, 1)
    gci = pg.mplviewer.drawModel(ax, mesh, data=uI[0],
                                 cMin=-1, cMax=1, cmap='bwr')
    pg.mplviewer.drawMeshBoundaries(ax, meshIn, hideMesh=1)
    ax.set_xlim((-20, 20))
    ax.set_ylim((-15, 0))
    ax.set_ylabel('Depth [m]')
    ax.set_xlabel('$x$ [m]')

    ticks = ax.yaxis.get_majorticklocs()
    tickLabels = []
    for t in ticks:
        tickLabels.append(str(int(abs(t))))

    ax.set_yticklabels(tickLabels)

    plt.tight_layout()
#    ax, cbar = pg.show(mesh, data=vP)
#    pg.showNow()
#    ax = fig.add_subplot(1,1,1)

    def animate(i):
        i = i*5
        if i > len(uI)-1:
            return
        print("Frame:", i, "/", len(uI))
        ui = uI[i]
        ui = ui / max(pg.abs(ui))
        ui = pg.logDropTol(ui, 1e-2)
        cMax = max(pg.abs(ui))

        pg.mplviewer.setMappableData(gci, ui,
                                     cMin=-cMax, cMax=cMax,
                                     logScale=False)
        # plt.pause(0.001)

    anim = animation.FuncAnimation(fig, animate,
                                   frames=int(len(uI)/5),
                                   interval=0.001, repeat=0)  # , blit=True)
    out = 'seis' + str(f0scale) + "cfl-" + str(cfl)
    anim.save(out + ".mp4", writer=None, fps=20, dpi=dpi, codec=None,
              bitrate=24*1024, extra_args=None, metadata=None,
              extra_anim=None, savefig_kwargs=None)
    try:
        print("create frames ... ")
        os.system('mkdir -p anim-' + out)
        os.system('ffmpeg -i ' + out + '.mp4 anim-' + out + '/movie%d.jpg')
    except:
        pass
Example #34
0
def calcSeismics(meshIn, vP):
    """Do seismic computations."""
    meshSeis = meshIn.createH2()
    meshSeis = mt.appendTriangleBoundary(meshSeis,
                                         xbound=25,
                                         ybound=22.0,
                                         marker=1,
                                         quality=32.0,
                                         area=0.3,
                                         smooth=True,
                                         markerBoundary=1,
                                         isSubSurface=False,
                                         verbose=False)
    print(meshSeis)
    meshSeis = meshSeis.createH2()
    meshSeis = meshSeis.createH2()
    # meshSeis = meshSeis.createP2()

    meshSeis.smooth(1, 1, 1, 4)
    vP = pg.interpolate(meshIn, vP, meshSeis.cellCenters())

    mesh = meshSeis
    vP = pg.solver.fillEmptyToCellArray(mesh, vP)

    print(mesh)
    # ax, cbar = pg.show(mesh, data=vP)
    # pg.show(mesh, axes=ax)

    geophPointsX = np.arange(-19, 19.1, 1)
    geophPoints = np.vstack((geophPointsX, np.zeros(len(geophPointsX)))).T
    sourcePos = geophPoints[4]

    c = mesh.findCell(sourcePos)
    h1 = pg.findBoundary(c.boundaryNodes(0)).size()
    h2 = pg.findBoundary(c.boundaryNodes(1)).size()
    h3 = pg.findBoundary(c.boundaryNodes(2)).size()
    print([h1, h2, h3])
    h = pg.math.median([h1, h2, h3])

    # h = pg.math.median(mesh.boundarySizes())
    f0scale = 0.25
    cfl = 0.5
    dt = cfl * h / max(vP)
    print("Courant-Friedrich-Lewy number:", cfl)

    tmax = 40. / min(vP)
    times = np.arange(0.0, tmax, dt)

    solutionName = createCacheName('seis', mesh, times) + "cfl-" + str(cfl)
    try:
        # u = pg.load(solutionName + '.bmat')
        uI = pg.load(solutionName + 'I.bmat')
    except Exception as e:
        print(e)
        f0 = f0scale * 1. / dt
        print("h:", round(h, 2), "dt:", round(dt, 5), "1/dt:",
              round(1 / dt, 1), "f0", round(f0, 2), "Wavelength: ",
              round(max(vP) / f0, 2), " m")

        uSource = ricker(times, f0, t0=1. / f0)

        plt.figure()
        plt.plot(times, uSource, '-*')
        plt.show(block=0)
        plt.pause(0.01)
        u = solvePressureWave(mesh,
                              vP,
                              times,
                              sourcePos=sourcePos,
                              uSource=uSource,
                              verbose=10)

        u.save(solutionName)
        uI = pg.Matrix()
        print("interpolate node to cell data ... ")
        pg.interpolate(mesh, u, mesh.cellCenters(), uI)
        print("... done")
        uI.save(solutionName + 'I')

#    nodes = [mesh.findNearestNode(p) for p in geophPoints]
#    fig = plt.figure()
#    axs = fig.add_subplot(1,1,1)
#    drawSeismogramm(axs, mesh, u, nodes, dt, i=None)
#    plt.show()

    dpi = 92
    scale = 1
    fig = plt.figure(facecolor='white',
                     figsize=(scale * 800 / dpi, scale * 490 / dpi),
                     dpi=dpi)
    ax = fig.add_subplot(1, 1, 1)
    gci = pg.viewer.mpl.drawModel(ax,
                                  mesh,
                                  data=uI[0],
                                  cMin=-1,
                                  cMax=1,
                                  cmap='bwr')
    pg.viewer.mpl.drawMeshBoundaries(ax, meshIn, hideMesh=1)
    ax.set_xlim((-20, 20))
    ax.set_ylim((-15, 0))
    ax.set_ylabel('Depth [m]')
    ax.set_xlabel('$x$ [m]')

    ticks = ax.yaxis.get_majorticklocs()
    tickLabels = []
    for t in ticks:
        tickLabels.append(str(int(abs(t))))

    ax.set_yticklabels(tickLabels)

    plt.tight_layout()

    #    ax, cbar = pg.show(mesh, data=vP)
    #    pg.showNow()
    #    ax = fig.add_subplot(1,1,1)

    def animate(i):
        i = i * 5
        if i > len(uI) - 1:
            return
        print("Frame:", i, "/", len(uI))
        ui = uI[i]
        ui = ui / max(pg.abs(ui))
        ui = pg.logDropTol(ui, 1e-2)
        cMax = max(pg.abs(ui))

        pg.viewer.mpl.setMappableData(gci,
                                      ui,
                                      cMin=-cMax,
                                      cMax=cMax,
                                      logScale=False)
        # plt.pause(0.001)

    anim = animation.FuncAnimation(fig,
                                   animate,
                                   frames=int(len(uI) / 5),
                                   interval=0.001,
                                   repeat=0)  # , blit=True)
    out = 'seis' + str(f0scale) + "cfl-" + str(cfl)
    anim.save(out + ".mp4",
              writer=None,
              fps=20,
              dpi=dpi,
              codec=None,
              bitrate=24 * 1024,
              extra_args=None,
              metadata=None,
              extra_anim=None,
              savefig_kwargs=None)
    try:
        print("create frames ... ")
        os.system('mkdir -p anim-' + out)
        os.system('ffmpeg -i ' + out + '.mp4 anim-' + out + '/movie%d.jpg')
    except:
        pass
Example #35
0
import pygimli as pg
import numpy as np
from settings import fpm

pd = pg.load("paraDomain_1.bms")
resinv = np.loadtxt("res_conventional.dat")
vest = np.loadtxt("vel_conventional.dat")

fae, fie, fwe, maske = fpm.all(resinv, vest)
print(np.min(fwe), np.max(fwe))
np.savez("conventional.npz", vel=np.array(vest), rho=np.array(resinv), fa=fae,
         fi=fie, fw=fwe, mask=maske)
Example #36
0
def main():
    # read config file
    conf_file = "inv.conf"
    with open(conf_file, "r") as fd:
        conf = json.load(fd)

    # res = pb.Resistivity("input.dat")
    # res.invert()
    # np.savetxt('resistivity.vector', res.resistivity)
    # return

    # load data file
    data = pg.DataContainerERT("input.dat")

    # remove invalid data
    oldsize = data.size()
    data.removeInvalid()
    newsize = data.size()
    if newsize < oldsize:
        print('Removed ' + str(oldsize - newsize) + ' values.')
    if not data.allNonZero('rhoa'):
        print("No or partial rhoa values.")
        return

    # check, compute error
    if data.allNonZero('err'):
        error = data('err')
    else:
        print("estimate data error")
        error = conf["relativeError"] + conf["absoluteError"] / data('rhoa')

    # create FOP
    fop = pg.DCSRMultiElectrodeModelling(verbose=conf["verbose"])
    fop.setThreadCount(psutil.cpu_count(logical=False))
    fop.setData(data)

    # create Inv
    inv = pg.RInversion(verbose=conf["verbose"], dosave=False)
    # variables tD, tM are needed to prevent destruct objects
    tD = pg.RTransLog()
    tM = pg.RTransLogLU()
    inv.setTransData(tD)
    inv.setTransModel(tM)
    inv.setForwardOperator(fop)

    # mesh
    if conf["meshFile"] == "":
        depth = conf["depth"]
        if depth is None:
            depth = pg.DCParaDepth(data)

        poly = pg.meshtools.createParaMeshPLC(
            data.sensorPositions(),
            paraDepth=depth,
            paraDX=conf["paraDX"],
            paraMaxCellSize=conf["maxCellArea"],
            paraBoundary=2,
            boundary=2)

        if conf["verbose"]:
            print("creating mesh...")
        mesh = pg.meshtools.createMesh(poly,
                                       quality=conf["quality"],
                                       smooth=(1, 10))
    else:
        mesh = pg.Mesh(pg.load(conf["meshFile"]))

    mesh.createNeighbourInfos()

    if conf["verbose"]:
        print(mesh)

    sys.stdout.flush()  # flush before multithreading
    fop.setMesh(mesh)
    fop.regionManager().setConstraintType(1)

    if not conf["omitBackground"]:
        if fop.regionManager().regionCount() > 1:
            fop.regionManager().region(1).setBackground(True)

    if conf["meshFile"] == "":
        fop.createRefinedForwardMesh(True, False)
    else:
        fop.createRefinedForwardMesh(conf["refineMesh"], conf["refineP2"])

    paraDomain = fop.regionManager().paraDomain()
    inv.setForwardOperator(fop)  # necessary?

    # inversion parameters
    inv.setData(data('rhoa'))
    inv.setRelativeError(error)
    fop.regionManager().setZWeight(conf['zWeight'])
    inv.setLambda(conf['lam'])
    inv.setMaxIter(conf['maxIter'])
    inv.setRobustData(conf['robustData'])
    inv.setBlockyModel(conf['blockyModel'])
    inv.setRecalcJacobian(conf['recalcJacobian'])

    pc = fop.regionManager().parameterCount()
    startModel = pg.RVector(pc, pg.median(data('rhoa')))

    inv.setModel(startModel)

    # Run the inversion
    sys.stdout.flush()  # flush before multithreading
    model = inv.run()
    resistivity = model(paraDomain.cellMarkers())
    np.savetxt('resistivity.vector', resistivity)
    print("Done.")
Example #37
0
import numpy as np

import pygimli as pg
import pygimli.meshtools as mt

from fpinv import FourPhaseModel, NN_interpolate
from pygimli.physics import Refraction, ERTManager
from settings import *

#need ertData, rstData, a mesh and phi to be given
ertData = pg.DataContainerERT("ert_filtered.data")
print(ertData)
mesh = pg.load("mesh_1.bms")
paraDomain = pg.load("paraDomain_1.bms")
depth = mesh.ymax() - mesh.ymin()

ert = ERTManager()
resinv = ert.invert(ertData,
                    mesh=mesh,
                    lam=60,
                    zWeight=zWeight,
                    maxIter=maxIter)
print("ERT chi:", ert.inv.chi2())
print("ERT rms:", ert.inv.relrms())

np.savetxt("res_conventional.dat", resinv)
#############
ttData = pg.DataContainer("rst_filtered.data", "s g")
rst = Refraction(ttData)

# INVERSION
Example #38
0
import pybert as pb
import pygimli as pg


# compute k, err, rhoa
data = pb.DataContainerERT("lhp2.dat")
data.set("k", pg.geometricFactors(data))
data.set("err", pb.Resistivity.estimateError(data, absoluteUError=0.0001, relativeError=0.03))
data.set("rhoa", data("u") / data("i") * data("k"))

# mesh
mesh = pg.load("oblast.bms")
#mesh = pg.meshtools.createParaMesh2DGrid(data.sensorPositions(), paraDX=0.25, paraDZ=0.25, nLayers=20)

# inversion
res = pb.Resistivity(data)
res.setMesh(mesh)
#res.setMesh(mesh, refine=False)
res.invert()
res.showResult()
#res.saveResult("in_python_res")

pg.wait()
def showSynthData(synthPath):
    geom = pg.load(synthPath + 'synthGeom.bms')
    mesh = pg.load(synthPath + 'synth.bms')
    k = np.load(synthPath + 'synthK.npy')
    vel = np.load(synthPath + 'synthVel.npy')
    sat = np.load(synthPath + 'synthSat.npy')

    scheme = pg.DataContainer(synthPath + 'synth.shm', 'a b m n')
#    rhoaR = np.load(synthPath + 'synthRhoaRatio.npy')
#    rhoa = np.load(synthPath + 'synthRhoa.npy')

    row = 3
    col = 2

    # START model perm + input
    savefig(mesh, geom, k, 'Hydraulic conductivity $K$ in m$/$s',
            out='hydrConductModel',
            cMin=1e-5, cMax=1e-2, nLevs=4, cmap='viridis')

    # START velocity
    axVel, _ = pg.show(mesh, np.sqrt(vel[0]**2 + vel[1]**2),
                       logScale=0, colorBar=1, pad=0.55,
                       label='Velocity $|v|$ in m$/$s', hold=1)

    meshC = pg.meshtools.createMesh(geom, quality=33, area=0.5, smooth=[1, 10])
    pg.show(mesh, data=vel, ax=axVel, coarseMesh=meshC, color='black',
            linewidth=0.5, dropTol=1e-6)
    pg.show(geom, ax=axVel, fillRegion=False)
    saveAxes(axVel, 'hydrVelocity', adjust=True)

    # START Saturation
    axs = plt.subplots(row, col, sharex=True, sharey=True,
                       figsize=(10.*0.65, 7.25*0.65))[1].flatten()

    satScale = 0.001
    for i, a in enumerate(axs):
        savefig(mesh, geom,
                sat[i*len(sat)/(len(axs))+1] * satScale,  # /mesh.cellSizes(),
                label=None,
                out=None,
                cMin=0, cMax=2.5,
                ax=a,
                adjust=True)
        pg.mplviewer.drawSensors(a, scheme.sensorPositions(),
                                 diam=0.15, color='green')

        add_inner_title(a, "t = %d days" % days[i], 3, color="w")

        if i < (row-1)*col:
            a.set_xlabel('')
        if i % col:
            a.set_ylabel('')
        a.set_ylim([-16, 0])

    pg.mplviewer.saveFigure(axs[0].figure, "hydrSaturation")
    pg.mplviewer.createColorBarOnly(cMin=0, cMax=2.5, logScale=False,
                                    cMap='Spectral_r',
                                    nLevs=5,
                                    label=r'Concentration $c$ in g$/$l',
                                    orientation='horizontal',
                                    savefig='hydrSaturationCbar')

    # END Saturation
    pg.wait()