[vtkusers] alignment between nifti and vtk files

[Hila Hiler]

Thanks!
how I should do that?
set the origin of the vtkImageData to (0,0,0)
while I have a polyData that was written by vtkPolyDataWriter and of course
the vtk file.

On Fri, Mar 2, 2012 at 2:30 PM, Martijn Steenwijk <
martijnsteenwijk at gmail.com> wrote:

> Okay, what you should do is left-right flip the vtkImageData (use
> vtkImageFlip) and set the origin of the vtkImageData to (0,0,0). Probably
> this will fix the problem.
>
>
> On Fri, Mar 2, 2012 at 1:29 PM, Hila Hiler <hilahiler at gmail.com> wrote:
>
>> The poly data is a segmentation from the nifti file and was written by
>> vtkPolyDataWriter.
>> I read the nifti file by itk.
>> To visualize them I use Mitk.
>>
>> please ask more if I missed any detail ...
>>
>> On Fri, Mar 2, 2012 at 2:18 PM, Martijn Steenwijk <
>> martijnsteenwijk at gmail.com> wrote:
>>
>>> Hi Hila,
>>>
>>> How was the polydata obtained and how do you read the nifti file in VTK?
>>>
>>> Best,
>>> Martijn
>>>
>>> On Fri, Mar 2, 2012 at 12:29 PM, Hila Hiler <hilahiler at gmail.com> wrote:
>>>
>>>> Hi all,
>>>>
>>>> I have one vtk file consists of polyData and another nifti file
>>>> consists gray values.
>>>> I'd like to align them.
>>>>
>>>> *data of vtk file:
>>>> ===============*
>>>>        GetGeometry3D(0):       Geometry3D (0314A390)
>>>>          IndexToWorldTransform:
>>>>         Matrix:
>>>>           1 0 0
>>>>           0 1 0
>>>>           0 0 1
>>>>         Offset: [0, 0, 0]
>>>>         Center: [0, 0, 0]
>>>>         Translation: [0, 0, 0]
>>>>         Inverse:
>>>>           1 0 0
>>>>           0 1 0
>>>>           0 0 1
>>>>         Scale : 1 1 1
>>>>          BoundingBox:         ( -16.886,63.6804 -102.803,88.6225
>>>> -19.869,79.0607  )
>>>>          Origin: [0, 0, 0]
>>>>          ImageGeometry: 0
>>>>          Spacing: [1, 1, 1]
>>>>          TimeBounds: [-3.40282e+038, 3.40282e+038]
>>>>
>>>> *
>>>> data of nifti file:
>>>> ===============*
>>>> GetGeometry2D(0):         PlaneGeometry (0BE3CAE8)
>>>>            IndexToWorldTransform:
>>>>           Matrix:
>>>>             0.488281 0 0
>>>>             0 -0.488281 0
>>>>             0 0 -1
>>>>           Offset: [-122.375, 115.432, -122.515]
>>>>           Center: [0, 0, 0]
>>>>           Translation: [-122.375, 115.432, -122.515]
>>>>           Inverse:
>>>>             2.048 0 0
>>>>             0 -2.048 0
>>>>             0 0 -1
>>>>           Scale : 1 1 1
>>>>            BoundingBox:           ( 0,512 0,512 0,1  )
>>>>            Origin: [-122.375, 115.432, -122.515]
>>>>            ImageGeometry: 1
>>>>            Spacing: [0.488281, 0.488281, 1]
>>>>            TimeBounds: [-3.40282e+038, 3.40282e+038]
>>>>
>>>>
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>>
>
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