[vtkusers] Rotate vtkImageData

[Darshan Pai]

If the imageCenter is not (0,0,0) you need to translate the image , do the
rotation and translate back ..

Regards
Darshan

On Mon, Mar 15, 2010 at 10:15 AM, KS Jothybasu <jothybasu at gmail.com> wrote:

> 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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