added writeVTK files
This commit is contained in:
Marcel Paffrath
parent
0a0ab4bfa9
commit
78d61a9822
@ -383,7 +383,7 @@ class SeisArray(object):
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def generateFMTOMOinputFromArray(self, nRP, nThetaP, nPhiP, nRI, nThetaI, nPhiI,
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Rbt, cushionfactor, interpolationMethod = 'linear',
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customgrid = 'mygrid.in'):
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customgrid = 'mygrid.in', writeVTK = True):
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print('\n------------------------------------------------------------')
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print('Automatically generating input for FMTOMO from array size.')
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print('Propgrid: nR = %s, nTheta = %s, nPhi = %s'%(nRP, nThetaP, nPhiP))
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@ -406,8 +406,36 @@ class SeisArray(object):
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depthmax = abs(Rbt[0] - getZmin(surface)) - 1.0 # cushioning for the bottom interface
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self.generateInterfaces(nThetaI, nPhiI, depthmax, cushionfactor = cushionfactor,
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returnInterfaces = False, method = interpolationMethod)
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interf1, interf2 = self.generateInterfaces(nThetaI, nPhiI, depthmax, cushionfactor = cushionfactor,
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returnInterfaces = True, method = interpolationMethod)
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if writeVTK == True:
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from pylot.core.active import fmtomoUtils
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self.surface2VTK(interf1, filename = 'interface1.vtk')
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self.surface2VTK(interf2, filename = 'interface2.vtk')
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self.receivers2VTK()
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self.sources2VTK()
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fmtomoUtils.vgrids2VTK()
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def generateReceiversIn(self, outfilename = 'receivers.in'):
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outfile = open(outfilename, 'w')
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recx, recy, recz = self.getReceiverLists()
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nsrc = len(self.getSourceLocations())
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outfile.writelines('%s\n'%(len(zip(recx, recy, recz)) * nsrc))
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for index in range(nsrc):
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for point in zip(recx, recy, recz):
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rx, ry, rz = point
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rad = - rz
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lat = self._getAngle(ry)
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lon = self._getAngle(rx)
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outfile.writelines('%15s %15s %15s\n'%(rad, lat, lon))
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outfile.writelines('%15s\n'%(1))
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outfile.writelines('%15s\n'%(index + 1))
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outfile.writelines('%15s\n'%(1))
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outfile.close()
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def generateInterfaces(self, nTheta, nPhi, depthmax, cushionfactor = 0.1,
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@ -698,147 +726,6 @@ class SeisArray(object):
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if returnTopo == True:
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return surface
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def addCheckerboard(self, spacing = 20., pertubation = 0.1, inputfile = 'vgrids.in', outputfile = 'vgrids_cb.in'):
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'''
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Add a checkerboard to an existing vgrids.in velocity model.
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:param: spacing, size of the tiles
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type: float
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:param: pertubation, pertubation (default: 0.1 = 10%)
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type: float
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'''
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def readNumberOfPoints(filename):
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fin = open(filename, 'r')
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vglines = fin.readlines()
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nR = int(vglines[1].split()[0])
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nTheta = int(vglines[1].split()[1])
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nPhi = int(vglines[1].split()[2])
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print('readNumberOf Points: Awaiting %d grid points in %s'
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%(nR*nTheta*nPhi, filename))
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fin.close()
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return nR, nTheta, nPhi
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def readDelta(filename):
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fin = open(filename, 'r')
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vglines = fin.readlines()
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dR = float(vglines[2].split()[0])
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dTheta = float(vglines[2].split()[1])
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dPhi = float(vglines[2].split()[2])
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fin.close()
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return dR, dTheta, dPhi
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def readStartpoints(filename):
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fin = open(filename, 'r')
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vglines = fin.readlines()
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sR = float(vglines[3].split()[0])
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sTheta = float(vglines[3].split()[1])
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sPhi = float(vglines[3].split()[2])
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fin.close()
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return sR, sTheta, sPhi
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def readVelocity(filename):
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'''
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Reads in velocity from vgrids file and returns a list containing all values in the same order
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'''
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vel = []; count = 0
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fin = open(filename, 'r')
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vglines = fin.readlines()
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for line in vglines:
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count += 1
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if count > 4:
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vel.append(float(line.split()[0]))
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print("Read %d points out of file: %s" %(count - 4, filename))
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return vel
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def correctSpacing(spacing, delta, disttype = None):
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if spacing > delta:
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spacing_corr = round(spacing / delta) * delta
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elif spacing < delta:
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spacing_corr = delta
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print('The spacing of the checkerboard of %s (%s) was corrected to '
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'a value of %s to fit the grid spacing of %s.' %(spacing, disttype, spacing_corr, delta))
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return spacing_corr
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R = 6371. # earth radius
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decm = 0.3 # diagonal elements of the covariance matrix (grid3dg's default value is 0.3)
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outfile = open(outputfile, 'w')
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# Theta, Phi in radians, R in km
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nR, nTheta, nPhi = readNumberOfPoints(inputfile)
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dR, dThetaRad, dPhiRad = readDelta(inputfile)
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sR, sThetaRad, sPhiRad = readStartpoints(inputfile)
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vel = readVelocity(inputfile)
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dTheta, dPhi = np.rad2deg((dThetaRad, dPhiRad))
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sTheta, sPhi = np.rad2deg((dThetaRad, dPhiRad))
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eR = sR + (nR - 1) * dR
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ePhi = sPhi + (nPhi - 1) * dPhi
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eTheta = sTheta + (nTheta - 1) * dTheta
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nPoints = nR * nTheta * nPhi
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thetaGrid = np.linspace(sTheta, eTheta, num = nTheta)
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phiGrid = np.linspace(sPhi, ePhi, num = nPhi)
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rGrid = np.linspace(sR, eR, num = nR)
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# write header for velocity grid file (in RADIANS)
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outfile.writelines('%10s %10s \n' %(1, 1))
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outfile.writelines('%10s %10s %10s\n' %(nR, nTheta, nPhi))
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outfile.writelines('%10s %10s %10s\n' %(dR, dThetaRad, dPhiRad))
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outfile.writelines('%10s %10s %10s\n' %(sR, sThetaRad, sPhiRad))
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spacR = correctSpacing(spacing, dR, '[meter], R')
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spacTheta = correctSpacing(self._getAngle(spacing), dTheta, '[degree], Theta')
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spacPhi = correctSpacing(self._getAngle(spacing), dPhi, '[degree], Phi')
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count = 0
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evenOdd = 1
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even = 0; odd = 0
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# In the following loop it is checked whether the positive distance from the border of the model
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# for a point on the grid divided by the spacing is even or odd and then pertubated.
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# The position is also shifted by half of the delta so that the position is directly on the point and
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# not on the border between two points.
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for radius in rGrid:
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if np.floor((radius - sR - dR/2) / spacR) % 2:
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evenOddR = 1
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else:
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evenOddR = -1
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for theta in thetaGrid:
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if np.floor((theta - sTheta - dTheta/2) / spacTheta) % 2:
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evenOddT = 1
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else:
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evenOddT = -1
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for phi in phiGrid:
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if np.floor((phi - sPhi - dPhi/2) / spacPhi) % 2:
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evenOddP = 1
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else:
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evenOddP = -1
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velocity = vel[count]
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evenOdd = evenOddR * evenOddT * evenOddP
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velocity += evenOdd * pertubation * velocity
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outfile.writelines('%10s %10s\n'%(velocity, decm))
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count += 1
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progress = float(count) / float(nPoints) * 100
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self._update_progress(progress)
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print('Added checkerboard to the grid in file %s with a spacing of %s and a pertubation of %s [km/s]. '
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'Outputfile: %s.'%(inputfile, spacing, pertubation, outputfile))
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outfile.close()
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def exportAll(self, filename = 'interpolated_receivers.out'):
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recfile_out = open(filename, 'w')
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count = 0
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