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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtkimagereslice.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 vtkvmtk
import vtk
import sys
import pypes
vmtkrbfinterpolation = 'vmtkRBFInterpolation'
class vmtkRBFInterpolation(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Seeds = None
self.RBFType = 'biharmonic'
self.Image = None
self.Dimensions = [0, 0, 0]
self.Bounds = [0.0, 1.0, 0.0, 1.0, 0.0, 1.0]
self.SetScriptName('vmtkrbfinterpolation')
self.SetScriptDoc('perform RBF interpolation from a set of seeds')
self.SetInputMembers([
['Seeds','i','vtkPolyData',1,'','the input seeds','vmtksurfacereader'],
['Image','r','vtkImageData',1,'','the reference image','vmtkimagereader'],
['Dimensions','dimensions','int',3,''],
['Bounds','bounds','float',6,''],
['RBFType','rbftype','str',1,'["thinplatespline","biharmonic","triharmonic"]','the type of RBF interpolation']
])
self.SetOutputMembers([
['Image','o','vtkImageData',1,'','the output image','vmtkimagewriter']
])
def Execute(self):
if self.Seeds == None:
self.PrintError('Error: No input seeds.')
rbf = vtkvmtk.vtkvmtkRBFInterpolation()
rbf.SetSource(self.Seeds)
if self.RBFType == "thinplatespline":
rbf.SetRBFTypeToThinPlateSpline()
elif self.RBFType == "biharmonic":
rbf.SetRBFTypeToBiharmonic()
elif self.RBFType == "triharmonic":
rbf.SetRBFTypeToTriharmonic()
rbf.ComputeCoefficients()
if self.Image:
origin = self.Image.GetOrigin()
spacing = self.Image.GetSpacing()
extent = self.Image.GetExtent()
dimensions = self.Image.GetDimensions()
modelBounds = [0.0,0.0,0.0,0.0,0.0,0.0]
modelBounds[0] = origin[0] + spacing[0]*extent[0]
modelBounds[1] = origin[0] + spacing[0]*extent[1]
modelBounds[2] = origin[1] + spacing[1]*extent[2]
modelBounds[3] = origin[1] + spacing[1]*extent[3]
modelBounds[4] = origin[2] + spacing[2]*extent[4]
modelBounds[5] = origin[2] + spacing[2]*extent[5]
else:
dimensions = self.Dimensions
modelBounds = self.Bounds
sampleFunction = vtk.vtkSampleFunction()
sampleFunction.SetImplicitFunction(rbf)
sampleFunction.SetOutputScalarTypeToDouble()
sampleFunction.SetSampleDimensions(dimensions)
sampleFunction.SetModelBounds(modelBounds)
sampleFunction.CappingOff()
sampleFunction.ComputeNormalsOff()
sampleFunction.Update()
self.Image = sampleFunction.GetOutput()
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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