def writeVTK(mesh, fileName, 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, vtkXMLRectilinearGridWriter as rectWriter, 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])
# vtkObj.Update()
# Check the extension of the fileName
ext = os.path.splitext(fileName)[1]
if ext is '':
fileName = fileName + '.vtr'
elif ext not in '.vtr':
raise IOError('{:s} is an incorrect extension, has to be .vtr')
# Write the file.
vtrWriteFilter = rectWriter()
if float(VTK_VERSION.split('.')[0]) >=6:
vtrWriteFilter.SetInputData(vtkObj)
else:
vtuWriteFilter.SetInput(vtuObj)
vtrWriteFilter.SetFileName(fileName)
vtrWriteFilter.Update()
def writeVTK(mesh, fileName, 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, vtkXMLRectilinearGridWriter as rectWriter, 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])
# vtkObj.Update()
# Check the extension of the fileName
ext = os.path.splitext(fileName)[1]
if ext is '':
fileName = fileName + '.vtr'
elif ext not in '.vtr':
raise IOError('{:s} is an incorrect extension, has to be .vtr')
# Write the file.
vtrWriteFilter = rectWriter()
if float(VTK_VERSION.split('.')[0]) >= 6:
vtrWriteFilter.SetInputData(vtkObj)
else:
vtuWriteFilter.SetInput(vtuObj)
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 _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
