[vtkusers] Applay transformatio to 3D-Imagedata

[David Gobbi]

Hi Peter,

In order to match the output of vtkImageReslice to a specific
vtkImageData (called 'data' for example), you have to use

 data UpdateInformation

 reslice SetOutputSpacing [data GetSpacing]
 reslice SetOutputOrigin [data GetOrigin]
 reslice SetOutputExtent [data GetWholeExtent]

also, when you apply a tranformation with vtkImageReslice you must
invert the transformation first:

 reslice SetResliceTransformation [transform GetInverse]

 - David

--
  David Gobbi, MSc                    dgobbi at irus.rri.on.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Thu, 19 Apr 2001, Peter Böttcher wrote:

> Dear vtk-users!
>
> I am currently working on a matching toll for 3D medical data. I read in
> my data with vtkImageReader and
> would like to apply a repeatable transformation to the vtkImageData. I
> worked around with vtkImageReslice, but the reslicing changes the
> matching volume. Is there a simple way to get the points of the image
> data, transform them (12DOF) so I can apply my matching program to the
> transformed points?
> I can't find any filter which gets a transformation and vtkImageData as
> input!!
>
> Thanks,
>
> Peter.
>
>
> --
> Dr. Peter Böttcher
> |
> |-Chirurgische Tierklinik
> | Lehrstuhl für Allgemeine und Spezielle Chirurgie, einschließlich
> Augenkrankheiten
> |
> |-Institut für TieranatomieI
> |
> Ludwig-Maximilians-Universität München
> Veterinärstr. 13
> D-80539 München
> Germany
>
>
>
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