Definition of a curve segment with a trimming mechanism built in with a StartPlacement (first point) and SegmentLength (second point).
|LayerAssignment||SET [0:1] OF IfcPresentationLayerAssignment FOR AssignedItems||Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items.|
> IFC2x3 CHANGE The inverse attribute LayerAssignments has been added.
> IFC4 CHANGE The inverse attribute LayerAssignment has been restricted to max 1. Upward compatibility for file based exchange is guaranteed.
|StyledByItem||SET [0:1] OF IfcStyledItem FOR Item||Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve.|
> IFC2x3 CHANGE The inverse attribute StyledByItem has been added.
|1||Transition||IfcTransitionCode||Connectivity between the continuous segments is not enforced per se to be tangential. Setting "TangentialContinuity" to True means that the current segment shall continue with tangential continuity to the previous one.|
|UsingCurves||SET [1:?] OF IfcCompositeCurve FOR Segments||The set of composite curves which use this composite curve segment as a segment. This set shall not be empty.|
ENTITY IfcSegment ABSTRACT SUPERTYPE OF (ONEOF (IfcCompositeCurveSegment ,IfcCurveSegment)) SUBTYPE OF (IfcGeometricRepresentationItem); Transition : IfcTransitionCode; INVERSE UsingCurves : SET [1:?] OF IfcCompositeCurve FOR Segments; END_ENTITY;