[vtkusers] Rotate vtkImageData

[KS Jothybasu]

Hi,

I wanted to rotate the vtkImageData and I am using vtkTransform to do that.
But how to rotate around the Image centre. I get the Image centre from
vtkImagedata.GetCenter() method. But when I view the image it seems to be
shifted.Here is the code

xform=vtk.vtkTransform()
xform.PostMultiply()
#xform.RotateWXYZ(10,218.0732421875, 218.0732421875, 158.75)
x,y,z=Image.GetCenter
xform.RotateWXYZ(50,x,y,z)# rotate 50 degs
res=vtk.vtkImageReslice()
res.SetInput(Image.GetOutput())
res.SetInformationInput(Image.GetOutput())
res.SetResliceTransform(xform)
res.SetInterpolationModeToLinear()
res.Update()

Whats wrong??

Thanks

Jothy
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