Butterfly subdivision algorithm non-extendable (access modifier issue)
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
vtkButterflySubdivisionFilter's header redeclares protected member functions from its base class as private. This effectively makes it impossible to extend with a derived class that needs to call those methods and provide additional processing. The access modifier needs to be changed from "private" to "protected".