L0 = <http://www.simantics.org/Layer0-1.1>
STR = <http://www.simantics.org/Structural-1.2>
G2D = <http://www.simantics.org/G2D-1.1>
DIA = <http://www.simantics.org/Diagram-2.2>

// These additions are required to implement new route graph based connection storage in the graph

// NOTE: we inherit the old connection to break as little old code as possible
DIA.RouteGraphConnection <T DIA.Connection
    @L0.property DIA.HasInteriorRouteNode

DIA.HasInteriorRouteNode <R L0.IsComposedOf
    L0.HasDomain DIA.Connection
    L0.HasRange DIA.InteriorRouteNode
DIA.HasLocation <R L0.HasProperty : L0.FunctionalRelation
    L0.HasRange G2D.Point2D
DIA.HasRelativeLocation <R L0.HasProperty : L0.FunctionalRelation
    L0.HasRange G2D.Point2D

DIA.HasPosition <R L0.HasProperty : L0.FunctionalRelation
    L0.HasRange L0.Double
DIA.IsHorizontal <R L0.HasProperty : L0.FunctionalRelation
    L0.HasRange L0.Boolean

DIA.RouteNode <T L0.Entity
    @L0.property DIA.AreConnected
DIA.InteriorRouteNode <T DIA.RouteNode
DIA.RoutePoint <T DIA.InteriorRouteNode
    @L0.singleProperty DIA.HasLocation
    @L0.assert DIA.HasLocation [0.0,0.0]
DIA.RouteLine <T DIA.InteriorRouteNode
    @L0.singleProperty DIA.HasPosition
    @L0.singleProperty DIA.IsHorizontal
    @L0.assert DIA.HasPosition 0.0
    @L0.assert DIA.IsHorizontal true

DIA.Connector <T DIA.RouteNode
    // Added DIA.RouteNode inheritance
    @L0.property DIA.HasRelativeLocation
    @L0.assert
        DIA.HasRelativeLocation
        [0.0,0.0] : G2D.Point2D
    >-- DIA.Connector.straight --> L0.Boolean <R L0.HasProperty : L0.FunctionalRelation
    @L0.assert DIA.Connector.straight false