Object manager

Serialization

You can register objects with a vtkObjectManager instance and call UpdateStatesFromObjects, GetState(identifier) to obtain a serialized state of the registered objects and all their dependency objects that are serializable.

Deserialization

You can register a json state (stringified) with a vtkObjectManager instance and call UpdateObjectsFromStates, GetObjectAtId(identifier) to deserialize and retrieve the objects.

Blobs

All vtkDataArray are hashed and stored as unique blobs to prevent multiple copies of the same data within the state. The contents of a data array within a state are represented with a hash string. You can fetch and register blobs using GetBlob and RegisterBlob.

Dependencies

You can retrieve all dependent object identifiers using vtkObjectManager::GetAllDependencies(identifier)