def applyFilters(self, state):
surface = state.inputModelNode.GetPolyData()
if state.decimation:
triangle = vtk.vtkTriangleFilter()
triangle.SetInput(surface)
decimation = vtk.vtkDecimatePro()
decimation.SetInput(triangle.GetOutput())
decimation.SetTargetReduction(state.reduction)
decimation.SetBoundaryVertexDeletion(state.boundaryDeletion)
decimation.PreserveTopologyOn()
decimation.Update()
surface = decimation.GetOutput()
if state.smoothing:
if state.smoothingMethod == "Laplace":
smoothing = vtk.vtkSmoothPolyDataFilter()
smoothing.SetInput(surface)
smoothing.SetBoundarySmoothing(state.boundarySmoothing)
smoothing.SetNumberOfIterations(state.laplaceIterations)
smoothing.SetRelaxationFactor(state.laplaceRelaxation)
smoothing.Update()
surface = smoothing.GetOutput()
elif state.smoothingMethod == "Taubin":
smoothing = vtk.vtkWindowedSincPolyDataFilter()
smoothing.SetInput(surface)
smoothing.SetBoundarySmoothing(state.boundarySmoothing)
smoothing.SetNumberOfIterations(state.taubinIterations)
smoothing.SetPassBand(state.taubinPassBand)
smoothing.Update()
surface = smoothing.GetOutput()
if state.normals:
normals = vtk.vtkPolyDataNormals()
normals.SetInput(surface)
normals.AutoOrientNormalsOn()
normals.SetFlipNormals(state.flipNormals)
normals.SetSplitting(state.splitting)
normals.SetFeatureAngle(state.featureAngle)
normals.ConsistencyOn()
normals.Update()
surface = normals.GetOutput()
if state.cleaner:
cleaner = vtk.vtkCleanPolyData()
cleaner.SetInput(surface)
cleaner.Update()
surface = cleaner.GetOutput()
if state.connectivity:
connectivity = vtk.vtkPolyDataConnectivityFilter()
connectivity.SetInput(surface)
connectivity.SetExtractionModeToLargestRegion()
connectivity.Update()
surface = connectivity.GetOutput()
state.outputModelNode.SetAndObservePolyData(surface)
return True
def applyFilters(self, state):
surface = state.inputModelNode.GetPolyData()
if state.decimation:
triangle = vtk.vtkTriangleFilter()
triangle.SetInput(surface)
decimation = vtk.vtkDecimatePro()
decimation.SetInput(triangle.GetOutput())
decimation.SetTargetReduction(state.reduction)
decimation.SetBoundaryVertexDeletion(state.boundaryDeletion)
decimation.PreserveTopologyOn()
decimation.Update()
surface = decimation.GetOutput()
if state.smoothing:
if state.smoothingMethod == "Laplace":
smoothing = vtk.vtkSmoothPolyDataFilter()
smoothing.SetInput(surface)
smoothing.SetBoundarySmoothing(state.boundarySmoothing)
smoothing.SetNumberOfIterations(state.laplaceIterations)
smoothing.SetRelaxationFactor(state.laplaceRelaxation)
smoothing.Update()
surface = smoothing.GetOutput()
elif state.smoothingMethod == "Taubin":
smoothing = vtk.vtkWindowedSincPolyDataFilter()
smoothing.SetInput(surface)
smoothing.SetBoundarySmoothing(state.boundarySmoothing)
smoothing.SetNumberOfIterations(state.taubinIterations)
smoothing.SetPassBand(state.taubinPassBand)
smoothing.Update()
surface = smoothing.GetOutput()
if state.normals:
normals = vtk.vtkPolyDataNormals()
normals.SetInput(surface)
normals.AutoOrientNormalsOn()
normals.SetFlipNormals(state.flipNormals)
normals.SetSplitting(state.splitting)
normals.SetFeatureAngle(state.featureAngle)
normals.ConsistencyOn()
normals.Update()
surface = normals.GetOutput()
if state.cleaner:
cleaner = vtk.vtkCleanPolyData()
cleaner.SetInput(surface)
cleaner.Update()
surface = cleaner.GetOutput()
if state.connectivity:
connectivity = vtk.vtkPolyDataConnectivityFilter()
connectivity.SetInput(surface)
connectivity.SetExtractionModeToLargestRegion()
connectivity.Update()
surface = connectivity.GetOutput()
state.outputModelNode.SetAndObservePolyData(surface)
return True
def prepareModel( self, polyData ):
'''
'''
# import the vmtk libraries
try:
#from libvtkvmtkComputationalGeometryPython import *
#from libvtkvmtkMiscPython import *
import libvtkvmtkComputationalGeometryPython as cg
import libvtkvmtkMiscPython as m
except ImportError:
print "FAILURE: Unable to import the SlicerVmtk libraries!"
capDisplacement = 0.0
surfaceCleaner = vtk.vtkCleanPolyData()
surfaceCleaner.SetInput( polyData )
surfaceCleaner.Update()
surfaceTriangulator = vtk.vtkTriangleFilter()
surfaceTriangulator.SetInput( surfaceCleaner.GetOutput() )
surfaceTriangulator.PassLinesOff()
surfaceTriangulator.PassVertsOff()
surfaceTriangulator.Update()
# new steps for preparation to avoid problems because of slim models (f.e. at stenosis)
subdiv = vtk.vtkLinearSubdivisionFilter()
subdiv.SetInput( surfaceTriangulator.GetOutput() )
subdiv.SetNumberOfSubdivisions( 1 )
subdiv.Update()
smooth = vtk.vtkWindowedSincPolyDataFilter()
smooth.SetInput( subdiv.GetOutput() )
smooth.SetNumberOfIterations( 20 )
smooth.SetPassBand( 0.1 )
smooth.SetBoundarySmoothing( 1 )
smooth.Update()
normals = vtk.vtkPolyDataNormals()
normals.SetInput( smooth.GetOutput() )
normals.SetAutoOrientNormals( 1 )
normals.SetFlipNormals( 0 )
normals.SetConsistency( 1 )
normals.SplittingOff()
normals.Update()
surfaceCapper = m.vtkvmtkCapPolyData()
surfaceCapper.SetInput( normals.GetOutput() )
surfaceCapper.SetDisplacement( capDisplacement )
surfaceCapper.SetInPlaneDisplacement( capDisplacement )
surfaceCapper.Update()
outPolyData = vtk.vtkPolyData()
outPolyData.DeepCopy( surfaceCapper.GetOutput() )
outPolyData.Update()
return outPolyData
