[vtkusers] how to connect ITK to VTK?

[Serhat Guneyli]

Hi vtk users,

I joined the itk & vtk family about a few weeks ago.
Up to now, i didn't write any meesages, but I tried to
find the answers to my questions by checking the
discussions you had in the past on this email list.. I
think, now i need some help.. It would be very nice,
if anyone can answer my question.

So, i am trying to connect ITK and VTK. I want to
visualize the output of an ITK filter via VTK. I am
using itkImageToVTKImageFilter.h class for it, and my
sample is an .png image. I added almost all of the
libs but still couldn't solve the problem.
Here down is my code and the error messages I get.

Thanks in advance,

Serhat Guneyli


// Define input image
#ifdef WIN32
#include "..\\..\\data\\Data.h"
#else
#include "../../data/Data.h"
#endif

// ITK
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkGradientMagnitudeImageFilter.h"

// ITK to VTK
#include "itkImageToVTKImageFilter.h"

// VTK
#include "vtkImageViewer.h"
#include "vtkRenderWindowInteractor.h"

// Standard libs
#include <iostream>

int main()
{
// Define image
const unsigned int	Dimension = 2;
typedef unsigned short	PixelType;
typedef itk::Image< PixelType, Dimension > ImageType;

// Read Image from file
typedef itk::ImageFileReader< ImageType >
FileReaderType;
FileReaderType::Pointer	pReader =
FileReaderType::New();
pReader->SetFileName( INPUT_IMAGE_FILE );

/*
* Create ITK image (gradient magnitude, page 126)
*/

typedef itk::GradientMagnitudeImageFilter< ImageType,
ImageType > GradMagFilterType;
GradMagFilterType::Pointer pFilter =
GradMagFilterType::New();

pFilter->SetInput( pReader->GetOutput() );
	
/*
	* ITK -> VTK
*/

typedef itk::ImageToVTKImageFilter< ImageType >
ConnectorType;

ConnectorType::Pointer	pConnector;
pConnector->SetInput( pFilter->GetOutput() );

vtkRenderWindowInteractor			*pInteractor =
vtkRenderWindowInteractor::New();
vtkImageViewer	*pViewer     = vtkImageViewer::New();

	pViewer->SetInput( pConnector->GetOutput() );

	pViewer->SetupInteractor( pInteractor );
	pViewer->SetColorWindow( 255 );
	pViewer->SetColorLevel( 128 );
	pViewer->Render();
	pInteractor->Start();
	return 0;
}


and the errors:

Gradients2.obj : error LNK2001: unresolved external
symbol "public: class vtkImageData * __thiscall
itk::ImageToVTKImageFilter<class itk::Image<unsigned
short,2> >::GetOutput(void)const "
(?GetOutput@?$ImageToVTKImageFilter at V?$Image at G$01 at itk@@@itk@@
QBEPAVvtkImageData@@XZ)

Gradients2.obj : error LNK2001: unresolved external
symbol "public: void __thiscall
itk::ImageToVTKImageFilter<class itk::Image<unsigned
short,2> >::SetInput(class itk::Image<unsigned
short,2> const *)"
(?SetInput@?$ImageToVTKImageFilter at V?$Image at G$
01 at itk@@@itk@@QAEXPBV?$Image at G$01 at 2@@Z)

Debug/Gradients2.exe : fatal error LNK1120: 2
unresolved externals






		
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