[Insight-users] How to convert the result of a Surface extraction Filter(meshSource) to vtkUnstructuredGrid to visualize it?

[charfeddine amir]

Hi all,
 i use a surface extraction filter like the one in the ItkSoftwareGuide.pdf page 259,
 and i want to visualize it with vtk,
 so i tried to do so :
 
 void
 AppBase
 ::visualizevolume()
 {
 meshSource = MeshSourceType::New();
 const OutputPixelType objectValue = static_cast<OutputPixelType>( 255 );
 meshSource->SetObjectValue( objectValue );
 meshSource->SetInput( m_OutputVolume );
 
 connector = ConnectorType::New();
 
 connector->SetInput( meshSource->GetOutput() );
 vtkImageViewer * viewer = vtkImageViewer::New();
 vtkRenderWindowInteractor * renderWindowInteractor = vtkRenderWindowInteractor::New();
 viewer->SetupInteractor( renderWindowInteractor );
 viewer->SetInput( connector->GetOutput() );
 viewer->Render();
 viewer->SetColorWindow( 255 );
 viewer->SetColorLevel( 128 );
 renderWindowInteractor->Start();
 }
 
 but at the red line, i should convert the meshSource to a vtkUnstructuredGrid (i think)
 
 how can i do that?
 
 I take a look in the file vtk2itk.cxx but it's too diffucult, how can i use it?
 
 thx,
 Regards 
		
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