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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtksurfacetransform.py,v $
## Language: Python
## Date: $Date: 2005/09/14 09:49:59 $
## Version: $Revision: 1.4 $
## 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.
## Note: this class was improved by
## Hugo Gratama van Andel
## Academic Medical Centre - University of Amsterdam
## Dept. Biomedical Engineering & Physics
import vtk
import sys
import pypes
vmtksurfacetransform = 'vmtkSurfaceTransform'
class vmtkSurfaceTransform(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Surface = None
self.MatrixCoefficients = []
self.InvertMatrix = 0
self.Matrix4x4 = None
self.Rotation = [0.0,0.0,0.0]
self.Translation = [0.0,0.0,0.0]
self.Scaling = [1.0,1.0,1.0]
#TODO: define covariant vector array names
self.SetScriptName('vmtksurfacetransform')
self.SetScriptDoc('transform a surface with a provided matrix')
self.SetInputMembers([
['Surface','i','vtkPolyData',1,'','the input surface','vmtksurfacereader'],
['Matrix4x4','matrix4x4','vtkMatrix4x4',1,'','the input transform matrix'],
['MatrixCoefficients','matrix','float',16,'','coefficients of transform matrix'],
['InvertMatrix','invert','bool',1,'','invert matrix before applying transformation'],
['Rotation','rotation','float',3,'','rotations around the x-,y- and z-axis'],
['Translation','translation','float',3,'','translation in the x-,y- and z-directions'],
['Scaling','scaling','float',3,'','scaling of the x-,y- and z-directions']
])
self.SetOutputMembers([
['Surface','o','vtkPolyData',1,'','the output surface','vmtksurfacewriter']
])
def Execute(self):
if (self.Surface == None):
self.PrintError('Error: no Surface.')
if not self.Matrix4x4:
self.Matrix4x4 = vtk.vtkMatrix4x4()
if self.MatrixCoefficients != []:
self.PrintLog('Setting up transform matrix using specified coefficients')
self.Matrix4x4.DeepCopy(self.MatrixCoefficients)
elif self.Translation != [0.0,0.0,0.0] or self.Rotation != [0.0,0.0,0.0] or self.Scaling != [1.0,1.0,1.0]:
self.PrintLog('Setting up transform matrix using specified translation, rotation and/or scaling')
transform = vtk.vtkTransform()
transform.RotateX(self.Rotation[0])
transform.RotateY(self.Rotation[1])
transform.RotateZ(self.Rotation[2])
transform.Translate(self.Translation[0], self.Translation[1], self.Translation[2])
transform.Scale(self.Scaling[0], self.Scaling[1], self.Scaling[2])
self.Matrix4x4.DeepCopy(transform.GetMatrix())
if self.InvertMatrix:
self.Matrix4x4.Invert()
transform = vtk.vtkMatrixToLinearTransform()
transform.SetInput(self.Matrix4x4)
transformFilter = vtk.vtkTransformPolyDataFilter()
transformFilter.SetInput(self.Surface)
transformFilter.SetTransform(transform)
transformFilter.Update()
self.Surface = transformFilter.GetOutput()
if self.Surface.GetSource():
self.Surface.GetSource().UnRegisterAllOutputs()
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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