[Insight-users] how to write a transfrom into a file

[Xabier Artaechevarria Artieda]

Hi Yixun,

you can make use of the TransformFileWriter class in this way:

   //Write the transform to a file
   typedef itk::TransformFileWriter TransformWriterType;
   TransformWriterType::Pointer transformWriter = TransformWriterType::New();
   transformWriter->SetFileName( "Transform.txt" );
   transformWriter->SetInput( finalTransform );
   transformWriter->Update();

To read it:

   typedef itk::TransformFileReader TransformReaderType;
   TransformReaderType::Pointer transformReader  = TransformReaderType::New();

   transformReader->SetFileName( "Transform.txt" );

   typedef itk::TransformFileReader::TransformListType * TransformListType;
   TransformListType transforms = transformReader->GetTransformList();

   try
     {
     transformReader->Update();

     }
   catch( itk::ExceptionObject & excp )
     {
     std::cerr << "Error reading transform: ";
     std::cerr << excp << std::endl;
     return EXIT_FAILURE;
     }

     std::cout << "Transform parameters: " <<   
*transforms->begin())->GetParameters() << std::endl;

Good luck!
Xabi

-- 
Xabier Artaechevarria
Cancer Imaging Laboratory
Centre for Applied Medical Research
www.cima.es



Yixun Liu <yxliu at fudan.edu.cn> ha escrito:

> Hi,
>
> I want to write a transform e.g. ThinPlateSplineKernelTransform into  
>  a file and then read it into a transform. How to do it?
>
> Best,
>
> Yixun Liu
>



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