L0 = <http://www.simantics.org/Layer0-1.1>
DIA = <http://www.simantics.org/Diagram-2.2>


DIA.HasLayer <R L0.HasProperty
    L0.HasRange DIA.Layer

DIA.HasVisibleTag <R L0.HasProperty
    L0.HasRange L0.Tag
DIA.HasFocusableTag <R L0.HasProperty
    L0.HasRange L0.Tag
DIA.IsActive <R L0.HasProperty
    L0.HasRange L0.Boolean

DIA.IsVisible
    @L0.defTag 
    @L0.tag L0.Abstract
    L0.HasDescription "A relation meant to be inherited to create specific tags describing the visibility of any diagram element on a particular layer."
DIA.IsFocusable
    @L0.defTag
    @L0.tag L0.Abstract
    L0.HasDescription "A relation meant to be inherited to create specific tags describing the focusability of any diagram element on a particular layer."

DIA.IsVisibleDummy <R DIA.IsVisible
DIA.IsFocusableDummy <R DIA.IsFocusable

DIA.Layer <T L0.Entity
    @L0.singleProperty DIA.IsActive
    @L0.singleProperty DIA.HasVisibleTag
    @L0.singleProperty DIA.HasFocusableTag