ARPlaneAnchor.Classification.seat The plane anchor represents a real-world chair, stool, bench or similar flat surface. Declarationcase seat See AlsoPlane ClassificationsARPlaneAnchor.Classification.wallARPlaneAnchor.Classification.floorARPlaneAnchor.Classification.ceilingARPlaneAnchor.Classification.tableARPlaneAnchor.Classification.doorARPlaneAnchor.Classification.window