IFC 4.3.0.0 (IFC4X3) final

4.7.1.2.7 Linear Segment

The following diagram shows the generic classes and relationships used when applying this concept.

G IfcCurveSegment IfcCurveSegment LayerAssignment [0:1] StyledByItem [0:1] Transition [1:1] UsingCurves [1:?] Placement [1:1] SegmentStart [1:1] SegmentLength [1:1] ParentCurve [1:1] IfcPolyline IfcPolyline LayerAssignment [0:1] StyledByItem [0:1] Points [2:?] IfcCurveSegment:ParentCurve1->IfcPolyline:IfcPolyline0 IfcLine IfcLine LayerAssignment [0:1] StyledByItem [0:1] Pnt [1:1] Dir [1:1] IfcCurveSegment:ParentCurve1->IfcLine:IfcLine0 IfcParameterValue_0 IfcParameterValue IfcCurveSegment:SegmentStart1->IfcParameterValue_0:IfcParameterValue0 IfcParameterValue_1 IfcParameterValue IfcCurveSegment:SegmentLength1->IfcParameterValue_1:IfcParameterValue0
Figure 4.7.1.2.7.A