[vtkusers] Delete object from vtkPolyDataConnectivityFilter(C++)

[hao chen]

Hi, kenichiro yoshimi

Thank you for your reply.
But I don't know the specific method.

Do you mean like this:

vtkSmartPointer<vtkDICOMImageReader> DicomImageReader = 
vtkSmartPointer<vtkDICOMImageReader>::New(); 
DicomImageReader->SetDirectoryName("E:\\offline_3Ddata\\2017042402"); 
DicomImageReader->Update(); 

vtkSmartPointer<vtkContourFilter> filter = 
vtkSmartPointer<vtkContourFilter>::New(); 
filter->SetInputConnection(DicomImageReader->GetOutputPort()); 
filter->SetValue(0, 9000);   
filter->Update(); 

vtkSmartPointer<vtkTriangleFilter> triangleFilter = 
vtkSmartPointer<vtkTriangleFilter>::New(); 
triangleFilter->SetInputConnection(filter->GetOutputPort()); 
triangleFilter->Update(); 

*  vtkSmartPointer<vtkIdFilter> idFilter =
vtkSmartPointer<vtkIdFilter>::New();
  idFilter->SetInputConnection(sphereSource->GetOutputPort());
  idFilter->SetIdsArrayName("ids");
  idFilter->Update();*

vtkSmartPointer<vtkPolyDataConnectivityFilter> connectivityFilter = 
vtkSmartPointer<vtkPolyDataConnectivityFilter>::New();   
connectivityFilter->SetInput(*idFilter*->GetOutput());   
connectivityFilter->SetExtractionModeToCellSeededRegions(); 
connectivityFilter->AddSeed(1000); 
connectivityFilter->Update(); 

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By the way, I didn't realize that I don't know how to get the CellID from
vtkPolyDataConnectivityFilter.
I use 'GetCellNeighbors' to get CellId, but if I use in circled object(too
large), it will work very slowly.
So I found vtkPolyDataConnectivityFilter method, want to find out the CellId
directly.
Can you show me the specific method?

Sorry my poor english.
Thank you~

Hao



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