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## Program: VMTK
## Module: $RCSfile: vmtksurfaceloopextraction.py,v $
## Language: Python
## Date: $Date: 2014/10/24 16:35:13 $
## Version: $Revision: 1.10 $
## 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 contributed by
## Elena Faggiano (elena.faggiano@gmail.com)
## Politecnico di Milano
import vtk
import sys
import vmtkrenderer
import pypes
import vmtkscripts
vmtksurfaceloopextraction = 'vmtkSurfaceLoopExtraction'
class vmtkSurfaceLoopExtraction(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Surface = None
self.Opacity = 1.0
self.vmtkRenderer = None
self.OwnRenderer = 0
self.ContourWidget = None
self.Interpolator = None
#Output members
self.Loop = None
self.SetScriptName('vmtksurfaceloopextraction')
self.SetScriptDoc('')
self.SetInputMembers([
['Surface','i','vtkPolyData',1,'','the input surface','vmtksurfacereader'],
['vmtkRenderer','renderer','vmtkRenderer',1,'','external renderer'],
['Opacity','opacity','float',1,'(0.0,1.0)','object opacity in the scene'],
])
self.SetOutputMembers([
['Surface','o','vtkPolyData',1,'','the output surface','vmtksurfacewriter'],
['Loop','oloop','vtkPolyData',1,'','the output loop','vmtksurfacewriter'],
])
def AnswerValidator(self,text):
if not text:
return 0
if not text.split():
return 0
if int(text) != 1 and int(text) != 2 :
return 0
return 1
def AnswerRegionValidator(self,text):
if not text:
return 0
if not text.split():
return 0
if text != "y" and text != "n":
return 0
return 1
def LoopCallback(self, obj):
rep = vtk.vtkOrientedGlyphContourRepresentation.SafeDownCast(self.ContourWidget.GetRepresentation())
polycontour=vtk.vtkPolyData()
polycontour=rep.GetContourRepresentationAsPolyData()
self.Loop = polycontour
self.InputInfo("loop generated. Press q to quit \n")
def DeleteContourCallback(self, obj):
self.ContourWidget.Initialize()
def InteractCallback(self, obj):
if self.ContourWidget.GetEnabled() == 1:
self.ContourWidget.SetEnabled(0)
else:
self.ContourWidget.SetEnabled(1)
def Display(self):
self.vmtkRenderer.Render()
def Execute(self):
if self.Surface == None:
self.PrintError('Error: no Surface.')
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
self.vmtkRenderer.RegisterScript(self)
triangleFilter = vtk.vtkTriangleFilter()
triangleFilter.SetInputData(self.Surface)
triangleFilter.Update()
self.Surface = triangleFilter.GetOutput()
self.tagviewer = vmtkscripts.vmtkSurfaceViewer()
self.tagviewer.Surface = self.Surface
self.tagviewer.vmtkRenderer = self.vmtkRenderer
self.tagviewer.Representation = 'edges'
self.tagviewer.Opacity = self.Opacity
self.tagviewer.Execute()
self.ContourWidget = vtk.vtkContourWidget()
self.ContourWidget.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
rep = vtk.vtkOrientedGlyphContourRepresentation.SafeDownCast(self.ContourWidget.GetRepresentation())
rep.GetLinesProperty().SetColor(1, 0, 0)
rep.GetLinesProperty().SetLineWidth(4.0)
pointPlacer = vtk.vtkPolygonalSurfacePointPlacer()
pointPlacer.AddProp(self.tagviewer.Actor)
pointPlacer.GetPolys().AddItem(self.Surface)
rep.SetPointPlacer(pointPlacer)
self.Interpolator = vtk.vtkPolygonalSurfaceContourLineInterpolator()
self.Interpolator.GetPolys().AddItem(self.Surface)
rep.SetLineInterpolator(self.Interpolator)
self.InputInfo("Building loop ...\n")
self.vmtkRenderer.AddKeyBinding('space','Generate loop',self.LoopCallback)
self.vmtkRenderer.AddKeyBinding('d','Delete contour',self.DeleteContourCallback)
self.vmtkRenderer.AddKeyBinding('i','Start/stop contour drawing',self.InteractCallback)
self.Display()
if self.OwnRenderer:
self.vmtkRenderer.Deallocate()
if __name__ == '__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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