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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtkflowextensions.py,v $
## Language: Python
## Date: $Date: 2006/07/17 09:52:56 $
## Version: $Revision: 1.7 $
## 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 vtkvmtk
import pypes
import vmtkrenderer
vmtkflowextensions = 'vmtkFlowExtensions'
class vmtkFlowExtensions(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Surface = None
self.Centerlines = None
self.AdaptiveExtensionLength = 0
self.AdaptiveExtensionRadius = 1
self.AdaptiveNumberOfBoundaryPoints = 0
self.ExtensionLength = 1.0
self.ExtensionRatio = 10.0
self.ExtensionRadius = 1.0
self.TransitionRatio = 0.25
self.TargetNumberOfBoundaryPoints = 50
self.CenterlineNormalEstimationDistanceRatio = 1.0
self.ExtensionMode = "centerlinedirection"
self.InterpolationMode = "thinplatespline"
self.Interactive = 1
self.Sigma = 1.0
self.vmtkRenderer = None
self.OwnRenderer = 0
self.SetScriptName('vmtkflowextensions')
self.SetInputMembers([
['Surface','i','vtkPolyData',1,'','','vmtksurfacereader'],
['Centerlines','centerlines','vtkPolyData',1,'','','vmtksurfacereader'],
['ExtensionMode','extensionmode','str',1,'["centerlinedirection","boundarynormal"]','method for computing the normal for extension'],
['InterpolationMode','interpolationmode','str',1,'["linear","thinplatespline"]','method for computing interpolation from the model section to a circular section'],
['Sigma','sigma','float',1,'(0.0,)','thin plate spline stiffness'],
['AdaptiveExtensionLength','adaptivelength','bool',1],
['AdaptiveExtensionRadius','adaptiveradius','bool',1],
['AdaptiveNumberOfBoundaryPoints','adaptivepoints','bool',1],
['ExtensionLength','extensionlength','float',1,'(0.0,)'],
['ExtensionRatio','extensionratio','float',1,'(0.0,)'],
['ExtensionRadius','extensionradius','float',1,'(0.0,)'],
['TransitionRatio','transitionratio','float',1,'(0.0,)'],
['TargetNumberOfBoundaryPoints','boundarypoints','int',1,'(0,)'],
['Interactive','interactive','bool',1],
['vmtkRenderer','renderer','vmtkRenderer',1,'','external renderer'],
['CenterlineNormalEstimationDistanceRatio','normalestimationratio','float',1,'(0.0,)']
])
self.SetOutputMembers([
['Surface','o','vtkPolyData',1,'','','vmtksurfacewriter'],
['Centerlines','centerlines','vtkPolyData',1]
])
def LabelValidator(self,text):
import string
if not text:
return 0
if not text.split():
return 0
for char in text:
if char not in string.digits + " ":
return 0
return 1
def Execute(self):
if self.Surface == None:
self.PrintError('Error: No input surface.')
if self.ExtensionMode == "centerlinedirection" and self.Centerlines == None:
self.PrintError('Error: No input centerlines.')
boundaryIds = vtk.vtkIdList()
if self.Interactive:
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
self.vmtkRenderer.RegisterScript(self)
boundaryExtractor = vtkvmtk.vtkvmtkPolyDataBoundaryExtractor()
boundaryExtractor.SetInput(self.Surface)
boundaryExtractor.Update()
boundaries = boundaryExtractor.GetOutput()
numberOfBoundaries = boundaries.GetNumberOfCells()
seedPoints = vtk.vtkPoints()
for i in range(numberOfBoundaries):
barycenter = [0.0, 0.0, 0.0]
vtkvmtk.vtkvmtkBoundaryReferenceSystems.ComputeBoundaryBarycenter(boundaries.GetCell(i).GetPoints(),barycenter)
seedPoints.InsertNextPoint(barycenter)
seedPolyData = vtk.vtkPolyData()
seedPolyData.SetPoints(seedPoints)
seedPolyData.Update()
labelsMapper = vtk.vtkLabeledDataMapper();
labelsMapper.SetInput(seedPolyData)
labelsMapper.SetLabelModeToLabelIds()
labelsActor = vtk.vtkActor2D()
labelsActor.SetMapper(labelsMapper)
self.vmtkRenderer.Renderer.AddActor(labelsActor)
surfaceMapper = vtk.vtkPolyDataMapper()
surfaceMapper.SetInput(self.Surface)
surfaceMapper.ScalarVisibilityOff()
surfaceActor = vtk.vtkActor()
surfaceActor.SetMapper(surfaceMapper)
surfaceActor.GetProperty().SetOpacity(0.25)
self.vmtkRenderer.Renderer.AddActor(surfaceActor)
#self.vmtkRenderer.Render()
#self.vmtkRenderer.Renderer.RemoveActor(labelsActor)
#self.vmtkRenderer.Renderer.RemoveActor(surfaceActor)
ok = False
while not ok:
labelString = self.InputText("Please input boundary ids: ",self.LabelValidator)
labels = [int(label) for label in labelString.split()]
ok = True
for label in labels:
if label not in range(numberOfBoundaries):
ok = False
for label in labels:
boundaryIds.InsertNextId(label)
flowExtensionsFilter = vtkvmtk.vtkvmtkPolyDataFlowExtensionsFilter()
flowExtensionsFilter.SetInput(self.Surface)
flowExtensionsFilter.SetCenterlines(self.Centerlines)
flowExtensionsFilter.SetSigma(self.Sigma)
flowExtensionsFilter.SetAdaptiveExtensionLength(self.AdaptiveExtensionLength)
flowExtensionsFilter.SetAdaptiveExtensionRadius(self.AdaptiveExtensionRadius)
flowExtensionsFilter.SetAdaptiveNumberOfBoundaryPoints(self.AdaptiveNumberOfBoundaryPoints)
flowExtensionsFilter.SetExtensionLength(self.ExtensionLength)
flowExtensionsFilter.SetExtensionRatio(self.ExtensionRatio)
flowExtensionsFilter.SetExtensionRadius(self.ExtensionRadius)
flowExtensionsFilter.SetTransitionRatio(self.TransitionRatio)
flowExtensionsFilter.SetCenterlineNormalEstimationDistanceRatio(self.CenterlineNormalEstimationDistanceRatio)
flowExtensionsFilter.SetNumberOfBoundaryPoints(self.TargetNumberOfBoundaryPoints)
if self.ExtensionMode == "centerlinedirection":
flowExtensionsFilter.SetExtensionModeToUseCenterlineDirection()
elif self.ExtensionMode == "boundarynormal":
flowExtensionsFilter.SetExtensionModeToUseNormalToBoundary()
if self.InterpolationMode == "linear":
flowExtensionsFilter.SetInterpolationModeToLinear()
elif self.InterpolationMode == "thinplatespline":
flowExtensionsFilter.SetInterpolationModeToThinPlateSpline()
if self.Interactive:
flowExtensionsFilter.SetBoundaryIds(boundaryIds)
flowExtensionsFilter.Update()
self.Surface = flowExtensionsFilter.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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