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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtksurfacesmoothing.py,v $
## Language: Python
## Date: $Date: 2006/07/17 09:53:14 $
## Version: $Revision: 1.8 $
## Copyright (c) Luca Antiga, David Steinman. All rights reserved.
## See LICENCE file for details.
## This software is distributed WITHOUT ANY WARRANTY; without even
## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
## PURPOSE. See the above copyright notices for more information.
import vtk
import sys
import pypes
import vmtkscripts
vmtksurfacesmoothing = 'vmtkSurfaceSmoothing'
class vmtkSurfaceSmoothing(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Surface = None
self.NumberOfIterations = 1
self.PassBand = 1.0
self.RelaxationFactor = 0.01
self.BoundarySmoothing = 1
self.NormalizeCoordinates = 1
self.Method = 'taubin'
self.SetScriptName('vmtksurfacesmoothing')
self.SetScriptDoc('smooth a surface using Taubin\'s algorithm')
self.SetInputMembers([
['Surface','i','vtkPolyData',1,'','the input surface','vmtksurfacereader'],
['NumberOfIterations','iterations','int',1,'(0,)','number of iterations (e.g. 25)'],
['Method','method','str',1,'["taubin","laplace"]','smoothing method'],
['PassBand','passband','float',1,'','pass band (e.g. 0.1) - taubin only'],
['RelaxationFactor','relaxation','float',1,'(0.0,)','relaxation factor (e.g. 0.01) - laplace only'],
['BoundarySmoothing','boundarysmoothing','bool',1,'','toggle allow change of position of boundary points'],
['NormalizeCoordinates','normalize','bool',1,'','toggle normalization of coordinates prior to filtering to minimize spurious translation effects - taubin only']
])
self.SetOutputMembers([
['Surface','o','vtkPolyData',1,'','the output surface','vmtksurfacewriter']
])
def Execute(self):
if self.Surface == None:
self.PrintError('Error: No input surface.')
smoothingFilter = None
if self.Method is 'taubin':
smoothingFilter = vtk.vtkWindowedSincPolyDataFilter()
smoothingFilter.SetInput(self.Surface)
smoothingFilter.SetNumberOfIterations(self.NumberOfIterations)
smoothingFilter.SetPassBand(self.PassBand)
smoothingFilter.SetBoundarySmoothing(self.BoundarySmoothing)
smoothingFilter.SetNormalizeCoordinates(self.NormalizeCoordinates)
smoothingFilter.Update()
elif self.Method is 'laplace':
smoothingFilter = vtk.vtkSmoothPolyDataFilter()
smoothingFilter.SetInput(self.Surface)
smoothingFilter.SetNumberOfIterations(self.NumberOfIterations)
smoothingFilter.SetRelaxationFactor(self.RelaxationFactor)
smoothingFilter.Update()
else:
self.PrintError('Error: smoothing method not supported.')
self.Surface = smoothingFilter.GetOutput()
normals = vmtkscripts.vmtkSurfaceNormals()
normals.Surface = self.Surface
normals.Execute()
self.Surface = normals.Surface
if self.Surface.GetSource():
self.Surface.GetSource().UnRegisterAllOutputs()
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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