Layout.TilingSourcetype t = | Cycle of Oxbow_core.Direction.Logical.t| Mfact of {delta : float Oxbow_core.Delta.t;scope : Oxbow_core.Scope.t;}| Nmaster of {delta : int Oxbow_core.Delta.t;scope : Oxbow_core.Scope.t;}| Orientation of {dir : Oxbow_core.Direction.Spatial.t;scope : Oxbow_core.Scope.t;}| Select of {scheme : Oxbow_core.Scheme.t;scope : Oxbow_core.Scope.t;}| Scheme of {scheme : Oxbow_core.Scheme.t;scope : Oxbow_core.Scope.t;}