[vtkusers] How to use vtkImageReSlicer?

[WackoWanderer]

For some reason my code wasn't pasted in the previous message.

#my input is any vtkactor that contains a closed curve of type vtkPolyData
ShapePolyData = actor.GetMapper().GetInput()
boundingBox = ShapePolyData.GetBounds()
for i in range(0,6,2):
     delta = boundingBox[i+1]-boundingBox[i]
     newBoundingBox.append(boundingBox[i]-0.5*delta)
     newBoundingBox.append(boundingBox[i+1]+0.5*delta)

voxelizer = vtk.vtkVoxelModeller()
voxelizer.SetInputData(ShapePolyData)
voxelizer.SetModelBounds(newBoundingBox)
voxelizer.SetScalarTypeToBit()
voxelizer.SetForegroundValue(1)
voxelizer.SetBackgroundValue(0)
voxelizer.Update()

VoxelModel =voxelizer.GetOutput()

ImageOrigin = VoxelModel.GetOrigin()
slicer = vtk.vtkImageReslice()
#Am I setting the cutting axis here
slicer.SetResliceAxesDirectionCosines(1,0,0,0,1,0,0,0,1)
#if I increase the z axis of the origin, will the cutting plane move as
well?
slicer.SetResliceAxesOrigin(ImageOrigin[0],ImageOrigin[1],ImageOrigin[2])
slicer.SetInputData(VoxelModel)
slicer.SetInterpolationModeToLinear()
slicer.SetOutputDimensionality(2)
slicer.Update() #this makes the code crash

voxelSurface = vtk.vtkContourFilter()
voxelSurface.SetInputConnection(slicer.GetOutputPort())
voxelSurface.SetValue(0, .999)

voxelMapper = vtk.vtkPolyDataMapper()
voxelMapper.SetInputConnection(voxelSurface.GetOutputPort())
voxelActor = vtk.vtkActor()
voxelActor.SetMapper(voxelMapper)
Renderer.AddActor(voxelActor)



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