4.8.2.2.2 Axis 3D Geometry

The 'Axis' representation using 'Curve3D' representation type is predominately used to align material profile sets to geometric representations of standard beams, columns, members, pipes, ducts and other longitudinal elements.

The following attribute values for the IfcShapeRepresentation holding this geometric representation shall be used:

• IfcShapeRepresentation.RepresentationIdentifier = 'Axis'
• IfcShapeRepresentation.RepresentationType : 'Curve3D'
• IfcShapeRepresentation.Items = IfcBoundedCurve

Figure 62 illustrates an instance diagram.

Figure 62 — Axis 3D Geometry

Bridge View

Entity
IfcBeam	- -	- -	- -	- -

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