[Insight-users] How to do an affine transform on one 3D point set in ITK?

[Andreas Schuh]

Hi Tao,

in ITK you can use itk::Mesh to represent your data and apply the  
itk::TransformMeshFilter to transform the points using an  
itk::AffineTransform. Be aware that the transformation differs for  
itk::Point and itk::Vector.

--
regards
Andreas

Am 20.03.2009 um 19:42 schrieb Andreas Schuh <andreas.schuh.84 at googlemail.com 
 >:

> Hi Tao,
>
> there might be a way to do this with ITK. However, from the kind of  
> your data, the VTK might be better suited. The data you describe is  
> represented in VTK as vtkUnstructuredGrid, where the cells are 0D  
> (i.e. points). This data can be transformed using the  
> vtkTransformFilter.
>
> Whether you may want to use the VTK instead of ITK is dependent on  
> your further purpose.
>
> --
> regards
> Andreas
>
> Am 20.03.2009 um 18:49 schrieb Tao Dai <uniquedai at gmail.com>:
>
>> Hi, All:
>>
>> I have a 3D point set (not an image) to be affine transformed to  
>> another 3D point set. I tried but failed.  Anybody knows how to  
>> implement this using ITK?
>>
>> Thank you!!
>>
>> Tao
>> _____________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the ITK FAQ at: http://www.itk.org/Wiki/ITK_FAQ
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.itk.org/mailman/listinfo/insight-users