[vtk-developers] Do I need to delete an object when I create a smart pointer of it?

[Mingcheng Chen]

Hello,

I am always prudent when using VTK, i. e. I never mix the smart pointer and
normal pointer of VTK objects.

I have a concern. Suppose we have

vtkPolyData *mesh = some_function_which_returns_vtkPolyData_star(...);
vtkSmartPointer<vtkPolyData> mesh_ptr = vtkSmartPointer<vtkPolyData>(mesh);

we should do mesh_ptr->Delete() after, right?

However, can we do

vtkSmartPointer<vtkPolyData> mesh_ptr =
vtkSmartPointer<vtkPolyData>(some_function_which_returns_vtkPolyData_star(...));

?

If we do that, how can we delete the reference count to the object before
passing it to vtkSmartPointer?

Thanks!

-Mingcheng
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