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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtkimagevoipainter.py,v $
## Language: Python
## Date: $Date: 2006/05/26 12:35:13 $
## Version: $Revision: 1.9 $
## 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 math
import vtkvmtk
import vmtkrenderer
import pypes
vmtkimagevoipainter = 'vmtkImageVOIPainter'
class vmtkImageVOIPainter(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.CubeSource = vtk.vtkCubeSource()
self.CubeActor = vtk.vtkActor()
self.BoxActive = 0
self.BoxBounds = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
self.PaintValue = 0.0
self.PaintedImage = vtk.vtkImageData()
self.vmtkRenderer = None
self.OwnRenderer = 0
self.PlaneWidgetX = None
self.PlaneWidgetY = None
self.PlaneWidgetZ = None
self.BoxWidget = None
self.Image = None
self.Interactive = 1
self.SetScriptName('vmtkimagevoipainter')
self.SetScriptDoc('fill a cubical region of an image with a given gray level')
self.SetInputMembers([
['Image','i','vtkImageData',1,'','the input image','vmtkimagereader'],
['Interactive','interactive','bool',1,'','toggle interactivity'],
['BoxBounds','boxbounds','float',6,'','bounds of the cubical region for non-interactive mode'],
['PaintValue','paintvalue','float',1,'','graylevel to fill the region with'],
['vmtkRenderer','renderer','vmtkRenderer',1,'','external renderer']
])
self.SetOutputMembers([
['Image','o','vtkImageData',1,'','the output image','vmtkimagewriter']
])
def InteractCallback(self):
if self.BoxWidget.GetEnabled() == 1:
self.BoxWidget.SetEnabled(0)
else:
self.BoxWidget.SetEnabled(1)
def HideCube(self,object, event):
self.CubeActor.VisibilityOff()
def UpdateCube(self,object, event):
polyData = vtk.vtkPolyData()
object.GetPolyData(polyData)
polyData.ComputeBounds()
self.CubeSource.SetBounds(polyData.GetBounds())
self.CubeSource.Modified()
self.CubeActor.VisibilityOn()
def Display(self):
wholeExtent = self.Image.GetWholeExtent()
picker = vtk.vtkCellPicker()
picker.SetTolerance(0.005)
self.PlaneWidgetX.SetInput(self.Image)
self.PlaneWidgetX.SetPlaneOrientationToXAxes()
self.PlaneWidgetX.SetSliceIndex(wholeExtent[0])
self.PlaneWidgetX.DisplayTextOn()
self.PlaneWidgetX.SetPicker(picker)
self.PlaneWidgetX.KeyPressActivationOff()
self.PlaneWidgetX.On()
self.PlaneWidgetY.SetInput(self.Image)
self.PlaneWidgetY.SetPlaneOrientationToYAxes()
self.PlaneWidgetY.SetSliceIndex(wholeExtent[2])
self.PlaneWidgetY.DisplayTextOn()
self.PlaneWidgetY.SetPicker(picker)
self.PlaneWidgetY.KeyPressActivationOff()
self.PlaneWidgetY.SetLookupTable(self.PlaneWidgetX.GetLookupTable())
self.PlaneWidgetY.On()
self.PlaneWidgetZ.SetInput(self.Image)
self.PlaneWidgetZ.SetPlaneOrientationToZAxes()
self.PlaneWidgetZ.SetSliceIndex(wholeExtent[4])
self.PlaneWidgetZ.DisplayTextOn()
self.PlaneWidgetZ.SetPicker(picker)
self.PlaneWidgetZ.KeyPressActivationOff()
self.PlaneWidgetZ.SetLookupTable(self.PlaneWidgetX.GetLookupTable())
self.PlaneWidgetZ.On()
self.BoxWidget.SetPriority(1.0)
self.BoxWidget.SetHandleSize(5E-3)
self.BoxWidget.SetInput(self.Image)
self.BoxWidget.PlaceWidget()
self.BoxWidget.RotationEnabledOff()
self.BoxWidget.AddObserver("StartInteractionEvent", self.HideCube)
self.BoxWidget.AddObserver("EndInteractionEvent", self.UpdateCube)
self.BoxWidget.AddObserver("EnableEvent", self.UpdateCube)
self.BoxWidget.AddObserver("DisableEvent", self.HideCube)
polyData = vtk.vtkPolyData()
self.BoxWidget.GetPolyData(polyData)
polyData.ComputeBounds()
self.CubeSource.SetBounds(polyData.GetBounds())
cubeMapper = vtk.vtkPolyDataMapper()
cubeMapper.SetInput(self.CubeSource.GetOutput())
self.CubeActor.SetMapper(cubeMapper)
self.CubeActor.GetProperty().SetColor(0.6,0.6,0.2)
self.CubeActor.GetProperty().SetOpacity(0.25)
self.CubeActor.VisibilityOff()
self.vmtkRenderer.Renderer.AddActor(self.CubeActor)
self.vmtkRenderer.Render()
self.vmtkRenderer.Renderer.RemoveActor(self.CubeActor)
self.BoxActive = 0
if self.BoxWidget.GetEnabled() == 1:
polyData = vtk.vtkPolyData()
self.BoxWidget.GetPolyData(polyData)
polyData.ComputeBounds()
bounds = polyData.GetBounds()
self.BoxBounds[0] = bounds[0]
self.BoxBounds[1] = bounds[1]
self.BoxBounds[2] = bounds[2]
self.BoxBounds[3] = bounds[3]
self.BoxBounds[4] = bounds[4]
self.BoxBounds[5] = bounds[5]
self.BoxActive = 1
self.BoxWidget.Off()
def PaintVOI(self):
wholeExtent = self.Image.GetWholeExtent()
origin = self.Image.GetOrigin()
spacing = self.Image.GetSpacing()
paintedVOI = [0,0,0,0,0,0]
paintedVOI[0] = max(wholeExtent[0],int(math.ceil((self.BoxBounds[0]-origin[0])/spacing[0])))
paintedVOI[1] = min(wholeExtent[1],int(math.floor((self.BoxBounds[1]-origin[0])/spacing[0])))
paintedVOI[2] = max(wholeExtent[2],int(math.ceil((self.BoxBounds[2]-origin[1])/spacing[1])))
paintedVOI[3] = min(wholeExtent[3],int(math.floor((self.BoxBounds[3]-origin[1])/spacing[1])))
paintedVOI[4] = max(wholeExtent[4],int(math.ceil((self.BoxBounds[4]-origin[2])/spacing[2])))
paintedVOI[5] = min(wholeExtent[5],int(math.floor((self.BoxBounds[5]-origin[2])/spacing[2])))
imageBoxPainter = vtkvmtk.vtkvmtkImageBoxPainter()
imageBoxPainter.SetInput(self.Image)
imageBoxPainter.SetBoxExtent(paintedVOI)
imageBoxPainter.SetBoxDefinitionToUseExtent()
imageBoxPainter.SetPaintValue(self.PaintValue)
imageBoxPainter.Update()
self.PaintedImage.ShallowCopy(imageBoxPainter.GetOutput())
self.PaintedImage.Update()
if self.PaintedImage.GetSource():
self.PaintedImage.GetSource().UnregisterAllOutputs()
def Execute(self):
if self.Image == None:
self.PrintError('Error: no Image.')
if self.Interactive == 1:
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
self.vmtkRenderer.RegisterScript(self)
self.PlaneWidgetX = vtk.vtkImagePlaneWidget()
self.PlaneWidgetX.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
self.PlaneWidgetY = vtk.vtkImagePlaneWidget()
self.PlaneWidgetY.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
self.PlaneWidgetZ = vtk.vtkImagePlaneWidget()
self.PlaneWidgetZ.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
self.BoxWidget = vtk.vtkBoxWidget()
self.BoxWidget.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
self.vmtkRenderer.AddKeyBinding('i','Interact.', self.InteractCallback)
self.Display()
while (self.BoxActive == 1):
self.PaintVOI()
self.Image = self.PaintedImage
self.Display()
else:
self.PaintVOI()
if self.OwnRenderer:
self.vmtkRenderer.Deallocate()
self.Image = self.PaintedImage
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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