[Camino-users] PARAVIEW visualization issue

[Michael]

Hi Alessandro, you only have to fill the translation parameters with values
90, -126 and -72 for x, y and z parameters respectively. Note that you may
have to multiply these values by 2 (as indicated by the scaling factor in
your matrix) and use -90 instead of 90 for your x translation parameter.
On Oct 11, 2013 5:36 PM, "Alessandro Calamuneri" <alecalamuneri at gmail.com>
wrote:

> Hi Michael,
> thanks a lot for replaying soon!
> I am a bit into troubles for applying the trasformation, because in the
> header information I get a 4x4 matrix with the spatial information,
> something like
> -2 0 0 90
> 0 2 0 -126
> 0 0 2 -72
>
> When I get into the transform function within paraview I am asked 3 values
> for translation, 3 for rotation and 3 for scaling.
> How should I correctly fill out those parameters? To me it is not that
> clear
> Best,
> Alessandro
>
>
> 2013/10/10 Michael <mdayan.research at gmail.com>
>
>> Hi Alessandro,
>>
>> I have exactly the same issue but couldn't solve it using vtkstreamlines.
>> As a temporary fix (which worked for me) you could apply a transform to
>> your tracts in Paraview (Filter --> Alphabetical --> Transform) to align
>> them with your FA image, the transform parameters being in your image
>> header. You can read the header of your Analyze image with "analyzeheader
>> -readheader <image>" or your NIFTI image with "niftiheader -readheader
>> <image>"
>>
>>
>> On Thu, Oct 10, 2013 at 12:27 PM, Alessandro Calamuneri <
>> alecalamuneri at gmail.com> wrote:
>>
>>> Hi all,
>>> I'm new to Camino toolbox. I run deterministic tractography on a seed
>>> region, and would like to visualize results using paraview overlaying my FA
>>> map and the track. I use vtkstreamlines command to convert my track file,
>>> and open both FA image and the tracks. I represent Fa image as slice, and
>>> the tracts as wireframe; even if directional informations seem to be ok for
>>> correctly color coding tracts, two objects do not overlay at all. It is
>>> probably due to the loss of header informations after running track
>>> command. How do you link again such infos to the streamline in vtk format?
>>> I'm sure there is a way, as you have displayed in the tutorial.
>>> Thanks
>>> Alessandro
>>>
>>> --
>>> Alessandro Calamuneri
>>>
>>>
>>> _______________________________________________
>>> Camino-users mailing list
>>> Camino-users at www.nitrc.org
>>> http://www.nitrc.org/mailman/listinfo/camino-users
>>>
>>>
>>
>
>
> --
> Alessandro Calamuneri
> M. Sc., PhD-student in Ricerca Clinica e Traslazionale in Neuroscienze ed
> Oncologia
> Dipartimento di Neuroscienze, Scienze Psichiatriche e Anestesiologiche
> Policlinico Universitario "G.Martino"
> Università degli Studi di Messina
> tel: 0039 346 23 77 151
> mail: alecalamuneri at gmail.com
>         alessandro.calamuneri at unime.it
>         alecalamuneri at hotmail.it <alecalamuneri at tiscali.it>
>
>
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