[Insight-users] vtk polydata import / export

[Mathieu Malaterre]

imho,
	
	You can have a look here:

http://www . creatis . insa-lyon . fr/~malaterre/itk/polydata2itk . cxx

This is based on

	InsightApplications/Auxilary/vtk/vtk2itk.cxx

But instead of transforming a vtkUnstructuredGrid it take into account a 
vtkPolyData

Beware that it has not been heavily tested. It currently only works on 
triangle polydata (so you need to go through a vtkTriangleFiler first).

HTH
mathieu


imho wrote:
> Hi Luis,
> 
> I use vtkPolyData to represent 2 3D liver's models builded from slices.
> I already do registration on it with VTK (point-based + ICP), and now 
> I'd like to use the demon registration in ITK.
> So I'll try the conversion you purpose.
> 
> Thanks for your help
> 
> Imho.
> 
> 
> Luis Ibanez wrote:
> 
>>
>> Hi Imho,
>>
>> The import/export connections currently available
>> between ITK and VTK only manage image-to-image
>> conversions.
>>
>> You may want to convert your vtkPolyData to a vtkImageData
>> and then use the itkVTKImageToImageFilter available in
>>
>>    InsightApplications/Auxiliary/vtk
>>
>> In any case, a vtkPolyData may not be the best support
>> for representing an image...
>>
>>
>> Please let us know if you have futher questions,
>>
>>
>> Thanks
>>
>>
>>    Luis
>>
>>
>>
>> ------------------
>> imho wrote:
>>
>>> Hi all,
>>> is it possible to import and export a vtkPolyData or can I use images 
>>> only?
>>> How can I do?
>>> I have two vtkPolyData volumes, and I'd like to use itk filters like 
>>> this :
>>>
>>> vtk reader -> vtk filters -> itk filters -> vtk viewer
>>> I've tried this :
>>>
>>> VTK                            ->              ITK                    
>>> ->              VTK
>>>
>>> ITKImageExporter4            VTKImageImporter4            
>>> ITKImageImporter4        == first POLY
>>>
>>> ITKImageExporter5            VTKImageImporter5 
>>>                                                  == second POLY (no 
>>> output)
>>>
>>> but I don't know how to convert my vtkPolyData or how to typedef the 
>>> VTKimporter to make it work :
>>>     typedef unsigned short PixelType;
>>>     typedef itk::Image<PixelType, Dimension> ImageType;
>>>     typedef itk::VTKImageImport<ImageType> ImageImportType;
>>> is ok but not with a polyData, and
>>>
>>>     typedef itk::VTKImageImport<vtkPolyData*> ImageImportType;
>>>  isn't ok
>>>
>>> Thanks a lot
>>>
>>> imho
>>
>>
>>
>>
>>
>>
>>
> 
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-- 
Mathieu Malaterre
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