[Insight-users] Integrating with VTK basics

[Luis Ibanez]

Hi Diego,

You are missing to link with the ITKBasicFilters library.


---


In the future,
each time that you find unresolved symbols in your
application, simply search for the directory where
the class is, and add the library that corresponds
to the directory name.

For Example

in your case you are missing symbols from the class:

           itk::VTKImageExportBase

if you search in the ITK source tree, you will find
that this file is in the subdirectory:


           Insight/Code/BasicFilters


All the .cxx files in this directory get packed in
the library : ITKBasicFilters.




   Regards,



       Luis



-------------------------
Diego R. Medaglia wrote:
> Hi!
>     I'm starting to work with integration between ITK and VTK, and I 
> wrote a basic program, as follows:
>  
> #include "itkImageFileReader.h"
> #include "itkRawImageIO.h"
> #include "itkVTKImageExport.h"
> #include "itkImage.h"
>  
> #include "vtkImageImport.h"
> #include "vtkImageViewer.h"
>  
> 
> int main( )
> {
>  
>  
>   typedef unsigned short      PixelType;
>   const   unsigned int        Dimension = 2;
>   typedef itk::Image< PixelType, Dimension >    ImageType;
>   typedef itk::RawImageIO<PixelType, Dimension> IOType;
>  
>   typedef itk::ImageFileReader< ImageType >  ReaderType;
>   typedef itk::VTKImageExport< ImageType >  ExporterType;
>  
>  
>   ReaderType::Pointer reader = ReaderType::New();
>   ExporterType::Pointer exporter = ExporterType::New();
>   IOType::Pointer io = IOType::New();
>  
>   io->SetDimensions(0,64);
>   io->SetDimensions(1,64);
>  
>   reader->SetImageIO( io );
>  
>  
>   reader->SetFileName( "D:\\VTK\\VTKData\\Data\\headsq\\quarter.30" );
>  
>   exporter->SetInput( reader->GetOutput() );
>  
>   vtkImageImport *importer = vtkImageImport::New();
>   vtkImageViewer *viewer = vtkImageViewer::New();
>  
>   importer->SetImportVoidPointer( exporter );
>   viewer->SetInput(importer->GetOutput() );
>  
>  
>  
>   try
>     {
>     viewer->Render();
>     }
>   catch( itk::ExceptionObject & err )
>     {
>     std::cerr << "ExceptionObject caught !" << std::endl;
>     std::cerr << err << std::endl;
>     return EXIT_FAILURE;
>     }
>  
>   return EXIT_SUCCESS;
> }
>  
>  
> which just reads a raw image with ITK and passes it to VTK for 
> visualisation. I get an unresolved external symbol error during 
> compilation (VS .NET 2005) concerning the callback fuctions in 
> VTKImageExportBase:
>  
> ITKtoVTK error LNK2001: unresolved external symbol "protected: virtual 
> int __thiscall itk::VTKImageExportBase::PipelineModifiedCallback(void)" 
> (?PipelineModifiedCallback at VTKImageExportBase@itk@@MAEHXZ 
> <mailto:?PipelineModifiedCallback at VTKImageExportBase@itk@@MAEHXZ>)
> ITKtoVTK error LNK2001: unresolved external symbol "protected: virtual 
> void __thiscall itk::VTKImageExportBase::PrintSelf(class 
> std::basic_ostream<char,struct std::char_traits<char> > &,class 
> itk::Indent)const " 
> (?PrintSelf at VTKImageExportBase@itk@@MBEXAAV?$basic_ostream at DU?$char_traits at D@std@@@std@@VIndent at 2@@Z 
> <mailto:?PrintSelf at VTKImageExportBase@itk@@MBEXAAV?$basic_ostream at DU?$char_traits at D@std@@@std@@VIndent at 2@@Z>)
> ITKtoVTK error LNK2001: unresolved external symbol "protected: virtual 
> void __thiscall itk::VTKImageExportBase::UpdateDataCallback(void)" 
> (?UpdateDataCallback at VTKImageExportBase@itk@@MAEXXZ 
> <mailto:?UpdateDataCallback at VTKImageExportBase@itk@@MAEXXZ>)
> ITKtoVTK error LNK2001: unresolved external symbol "protected: virtual 
> void __thiscall 
> itk::VTKImageExportBase::UpdateInformationCallback(void)" 
> (?UpdateInformationCallback at VTKImageExportBase@itk@@MAEXXZ 
> <mailto:?UpdateInformationCallback at VTKImageExportBase@itk@@MAEXXZ>)
> ITKtoVTK error LNK2019: unresolved external symbol "protected: 
> __thiscall itk::VTKImageExportBase::VTKImageExportBase(void)" 
> (??0VTKImageExportBase at itk@@IAE at XZ 
> <mailto:??0VTKImageExportBase at itk@@IAE at XZ>) referenced in function 
> "protected: __thiscall itk::VTKImageExport<class itk::Image<unsigned 
> short,2> >::VTKImageExport<class itk::Image<unsigned short,2> >(void)" 
> (??0?$VTKImageExport at V?$Image at G$01 at itk@@@itk@@IAE at XZ 
> <mailto:??0?$VTKImageExport at V?$Image at G$01 at itk@@@itk@@IAE at XZ>)
>     Do I have to create those functions? From what I read in the docs, I 
> think that these are passed to VTKImageImport, that sets them as its 
> callbacks. Also, it seemed like an "include" error, but ITK's 
> VTKImageExport header includes the VTKImageExportBase header file.
>  
> CMakeLists.txt looks like this:
>  
> PROJECT(ITKtoVTK)
>  
> FIND_PACKAGE ( ITK)
> IF ( ITK_FOUND)
> INCLUDE( ${USE_ITK_FILE} )
> ENDIF( ITK_FOUND)
>  
> FIND_PACKAGE ( VTK)
> IF ( VTK_FOUND)
> INCLUDE( ${USE_VTK_FILE} )
> ENDIF( VTK_FOUND)
>  
> INCLUDE_DIRECTORIES(${C:\[CORRECT_PATH]\ITKtoVTK})
>  
> ADD_EXECUTABLE( ITKtoVTK ITKtoVTK.cxx)
>  
> TARGET_LINK_LIBRARIES (ITKtoVTK ITKCommon ITKIO vtkRendering vtkGraphics 
> vtkHybrid vtkImaging vtkIO vtkCommon)
>  
> Am I missing some libraries?
>  
>     Thanks a lot for any help, Diego
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Insight-users mailing list
> Insight-users at itk.org
> http://www.itk.org/mailman/listinfo/insight-users