[Insight-users] Problem of ImageToVTKImageFilter, when displaying 2 images

[ask ITK]

Sorry...it doesn't work...
I am trying is that related to the interactor....

2006/1/26, Patrick Cheng <cheng at isis.georgetown.edu>:
>
>
> ask ITK wrote:
> > Thanks a lot for the suggestion...
> > but the problem seems to exist...but in other form.....
> > Now half of the first image is destroyed after loading the second image....
> >
> > Error message now becomes:
> > ERROR: In D:\Research\VTK\src\Imaging\vtkImageImport.cxx, line 303
> > vtkImageImport (020D50E0): Unknown exception.
> >
> > ERROR: In D:\Research\VTK\src\Imaging\vtkImageImport.cxx, line 324
> > vtkImageImport (020D50E0): Unknown exception.
> >
> > I change my code like this....
> > =================================================
> > void ApplicationCore::callViewer(ImagePtr image, int choice)
> > {
> >       m_ImageViewer[choice]->SetupInteractor( m_renderWindowInteractor[choice]);
> >
> >       // new the connector every time
> >       itkvtkConnectorPtr itkvtkconnector = itkvtkConnectorType::New() ;
> >       itkvtkconnector->SetInput( image );
>         itkvtkconnector->Update()  //try add this line, see if it helps.
> >       m_ImageViewer[choice]->SetInput( itkvtkconnector->GetOutput() );
> >
> >       m_ImageViewer[choice]->SetSize(image->GetLargestPossibleRegion().GetSize()[0],image->GetLargestPossibleRegion().GetSize()[1]);
> >       m_ImageViewer[choice]->Render();
> >       m_ImageViewer[choice]->SetColorWindow( 255);
> >       m_ImageViewer[choice]->SetColorLevel( 128);
> > //    m_renderWindowInteractor[choice]->Start();
> > }
> >
> > ==================================================
> >
> >
> >
> >
> > 2006/1/26, Patrick Cheng <cheng at isis.georgetown.edu>:
> >> Hi,
> >>
> >> This is a long existing problem. Trying to figure out why too.
> >>
> >> A quick and dirty fix is to instantiate a new itkImageToVTKImageFilter
> >> every time you read a new image.
> >>
> >> Patrick
> >>
> >>
> >>
> >> ask ITK wrote:
> >>> Problem occurs when I want to use itkImageToVTKImageFilter to display
> >>> 2 different images.
> >>>
> >>> I want to display to different image with the VTK viewer..
> >>> of coz I think it requires 2 different viewers and 2 different interactors.
> >>> So I created 2 for both of them.
> >>>
> >>> Loading the first image is fine, but after I load teh second image,
> >>> the first image also become the second image!
> >>> I don't know how to solve this problem...so please help...
> >>>
> >>> following error is displayed:
> >>>
> >>> ERROR: In D:\Research\VTK\src\Filtering\vtkStreamingDemandDrivenPipeline.cxx,
> >>> line 643
> >>> vtkImageImportExecutive (020D8F78): The update extent specified in the
> >>> information for output port 0 on algorithm vtkImageImport(020D8AD0) is
> >>> 0 142 0 167 0 0, which is outside the whole extent 0 141 0 166 0 0.
> >>>
> >>> I attached my code below, very short, can I can run the program
> >>> smoothly except the stated error. Please help, thanks!
> >>> =======================================================
> >>>
> >>> void ApplicationCore::callViewer(ImagePtr image, int choice)
> >>> {
> >>>       m_itkvtkconnector[choice]->SetInput( image );
> >>>
> >>>       m_ImageViewer[choice]->SetupInteractor( m_renderWindowInteractor[choice]);
> >>>       m_ImageViewer[choice]->SetInput( m_itkvtkconnector[choice]->GetOutput() );
> >>>       m_ImageViewer[choice]->SetSize(image->GetLargestPossibleRegion().GetSize()[0],image->GetLargestPossibleRegion().GetSize()[1]);
> >>>       m_ImageViewer[choice]->Render();
> >>>       m_ImageViewer[choice]->SetColorWindow( 255);
> >>>       m_ImageViewer[choice]->SetColorLevel( 128);
> >>> //    m_renderWindowInteractor[choice]->Start();
> >>> }
> >>> =======================================================
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> >>> http://www.itk.org/mailman/listinfo/insight-users
> >>>
> >>>
> >
> >
>