Diagram level LayerIsVisible <R DIA.IsVisible LayerIsFocusable <R DIA.IsFocusable DIA.Element DIA.HasTransform[0..1] :G2D.Transform DIA.Diagram L0 = layer0.graph G2D = g2d.graph DIA = diagram2.graph ST = structural2.graph DIAGRAM.Layer DIA.IsActive : L0.Boolean DIA.HasLayer DIA.HasVisibleTag DIA.HasFocusableTag {ordered} LayerIsVisible LayerIsFocusable