@startuml
interface Object
interface DataObject
interface DataSet
interface CompositeDataSet
interface DataObjectTree
interface PartitionedDataSet

Object <|-- DataObject

DataSet -|> DataObject
DataObject <|- CompositeDataSet

DataSet <|-- ImageData
interface PointSet
DataSet <|-- PointSet
DataSet <|-- RectlinearGrid

PointSet <|-- StructuredGrid
interface UnstructuredGridBase
PointSet <|-- UnstructuredGridBase
UnstructuredGridBase <|-- UnstructuredGrid
PointSet <|-- PolyData

CompositeDataSet <|-- DataObjectTree
DataObjectTree <|-- PartitionedDataSet
PartitionedDataSet <|-- MultiPieceDataSet
DataObjectTree <|-- MultiBlockDataSet

hide empty fields
hide empty methods
@enduml