[vtkusers] Segmentation fault when Delete() is called on an output from a filter

[Anthony]

Hi all,

In this part of code I tried to create a new vtkImageData , pass it  through vtkImageFlip , get the output and then tried to free the memory. Don't know why I get Segmentation fault , what could I be missing here?  really appreciate any suggestion .

vtkImageData *id =vtkImageData::New();
        id->SetDimensions(10,25,100);
        id->SetScalarTypeToUnsignedShort();
        id->SetNumberOfScalarComponents(1);
        id->AllocateScalars();
    
    unsigned short *ptr= (unsigned short *) id->GetScalarPointer();
    for(int i=0; i<10*25*100;i++)
    { 
        *ptr++=i;
    }

    vtkImageFlip *flipX=vtkImageFlip::New();
        flipX->SetInput(id);
        flipX->SetFilteredAxis(0);
        flipX->Update();

    vtkImageData *id2=vtkImageData::SafeDownCast(flipX->GetOutput());
    
    id->Delete();
    flipX->Delete();
    id2->Delete(); //probably because of this?

Cheers,

Anthony



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