[vtkusers] PolyData actor is invisible after applying scale(1, 1, -1)

[zlf]

Dear David,

Thank you for your response. But I still cannot see anything. My code is 

vtkCubeSource cubeSource = vtkCubeSource->New();
cubeSource->SetCenter(5,5,5);
cubeSource->SetXLength(10);
cubeSource->SetYLength(10);
cubeSource->SetZLength(10);

vtkPolyDataMapper mapper = vtkPolyDataMapper::New();
mapper->SetInput(cubeSource->GetOutput());

vtkActor cubeActor = vtkActor::New();
cubeActor->SetMapper(mapper);

render->AddActor(cubeActor);

vtkTransform transform = vtkTransform::New();
transform->Scale(1,1,-1);
cubeActor->GetProertry()->BackfaceCullingOff();
cubeAcotr->SetUserTransform(transform);

renderer->ResetCameraClippingRange();
renderer->ResetCamera();
renwin->Render();

Regards,

zlf



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