[vtkusers] Storing SmartPointers in a vector

[Karthik Krishnan]

Disconnect the image from the pipeline, or it will be subject to updates
when you call Update() or update any of the downstream filters like the
VTK-ITK connector... This is done with a shallow copy.

ie Instead of :

                    USImageStitch = sonixGrabber->GetOutput();
                    USImageStitch->Update();

write

  sonixGrabber->Update();
  USImageStich->ShallowCopy(sonixGrabber->GetOutput());




On Tue, Feb 15, 2011 at 4:18 AM, Alexis Cheng <acheng_1221 at hotmail.com>wrote:

>
>                     vtkSmartPointer<vtkImageData> USImageStitch =
> vtkSmartPointer<vtkImageData>::New();
>                     USImageStitch->SetScalarTypeToUnsignedChar();
>                     USImageStitch->SetDimensions(640,480,1);
>                     USImageStitch->SetSpacing(1,1,1);
>                     USImageStitch = sonixGrabber->GetOutput();
>                     USImageStitch->Update();
>
>                     ImagePanorama.push_back(USImageStitch);
>                     Sleep(100);
>                 }
>
>                 for (vector<vtkSmartPointer<vtkImageData>>::iterator
> PanoramaIterator = ImagePanorama.begin();PanoramaIterator <
> ImagePanorama.end()-1;PanoramaIterator++)
>                 {
>                     VTKImageToITKImageType::Pointer VTKToITKConnector1 =
> VTKImageToITKImageType::New();
>                     VTKToITKConnector1->SetInput(*PanoramaIterator);
>                     VTKToITKConnector1->Update();
>
>                     VTKImageToITKImageType::Pointer VTKToITKConnector2 =
> VTKImageToITKImageType::New();
>                     VTKToITKConnector2->SetInput(*(PanoramaIterator+1));
>                     VTKToITKConnector2->Update();
>                 }
> //////////////////////////////////////////
>
> The iterators are returning the real time image as opposed to the stored
> image. I'm not quite sure what the problem may be. Has anybody worked with
> smartpointers and vectors? Thank you all in advance.
>
> Regards,
> Alexis Cheng
> Electrical Engineering
> University of British Columbia
>
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