[Insight-users] Show 3d image data by vtk, cont'

[jiang]

Hi Luis,
Thank you for your hint. I modify my code according the example
itkImageToVTKImage, and try to render it by VTK:

	vtkRenderer *renderer = vtkRenderer::New();
	vtkRenderWindow *renWin = vtkRenderWindow::New();
      renWin->AddRenderer(renderer);

//	renWin->SetParentId(mainFm); It doesn't work! :(

	vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
      iren->SetRenderWindow(renWin); // It also doesn't work

	typedef itk::VTKImageExport<ImageNDType> ExportType;
	ExportType::Pointer connector;
	connector= ExportType::New();
	connector->SetInput( reader->GetOutput() );//reader gets a series of DICOM
files.
/*Create a pipeline ITK-->VTK*/
	vtkImageImport* importer = vtkImageImport::New();

importer->SetUpdateInformationCallback(connector->GetUpdateInformationCallba
ck());

importer->SetPipelineModifiedCallback(connector->GetPipelineModifiedCallback
());
	importer->SetWholeExtentCallback(connector->GetWholeExtentCallback());
	importer->SetSpacingCallback(connector->GetSpacingCallback());
	importer->SetOriginCallback(connector->GetOriginCallback());
	importer->SetScalarTypeCallback(connector->GetScalarTypeCallback());

importer->SetNumberOfComponentsCallback(connector->GetNumberOfComponentsCall
back());

importer->SetPropagateUpdateExtentCallback(connector->GetPropagateUpdateExte
ntCallback());
	importer->SetUpdateDataCallback(connector->GetUpdateDataCallback());
	importer->SetDataExtentCallback(connector->GetDataExtentCallback());
	importer->SetBufferPointerCallback(connector->GetBufferPointerCallback());
	importer->SetCallbackUserData(connector->GetCallbackUserData());
/*Create a pipeline ITK-->VTK*/

	vtkStructuredPoints* structPts= vtkStructuredPoints::New();
	vtkImageToStructuredPoints* its=vtkImageToStructuredPoints::New();
	its->SetInput(importer->GetOutput());
	structPts=its->GetOutput();

	vtkDataSetMapper* mapper=vtkDataSetMapper::New();
	mapper->SetInput(structPts);

	vtkActor* actor=vtkActor::New();
	actor->SetMapper(mapper);

	renderer->AddActor(actor);
    renderer->SetBackground(1,1,1);
	renWin->Render();

	iren->Start();



However, in the vtk window, there is only one blue square is shown, no
image. I want to show this vtk window in the QtFrame. But
renWin->SetParentId(mainFm); doesn't work. And iren also doesn't work.
I'm sure the reader works correct. I displayed one image from it. It is
fine.

Could you tell me what is wrong in my code?

Thank you very much!


Chunyan