| Definition | Type | Referenced Entity | 
|---|
| IfcAxis1Placement | ENTITY | IfcRepresentationItem | 
| IfcAxis1Placement | ENTITY | IfcPlacement | 
| IfcAxis1Placement | ENTITY | IfcGeometricRepresentationItem | 
| IfcAxis2Placement2D | ENTITY | IfcPlacement | 
| IfcAxis2Placement3D | ENTITY | IfcPlacement | 
| IfcAxis2PlacementLinear | ENTITY | IfcPlacement | 
| IfcBaseAxis | FUNCTION | IfcGeometricRepresentationItem | 
| IfcBaseAxis | FUNCTION | IfcRepresentationItem | 
| IfcBuild2Axes | FUNCTION | IfcRepresentationItem | 
| IfcBuild2Axes | FUNCTION | IfcGeometricRepresentationItem | 
| IfcBuildAxes | FUNCTION | IfcRepresentationItem | 
| IfcBuildAxes | FUNCTION | IfcGeometricRepresentationItem | 
| IfcConvertDirectionInto2D | FUNCTION | IfcRepresentationItem | 
| IfcConvertDirectionInto2D | FUNCTION | IfcGeometricRepresentationItem | 
| IfcCrossProduct | FUNCTION | IfcGeometricRepresentationItem | 
| IfcCrossProduct | FUNCTION | IfcRepresentationItem | 
| IfcCurveSegment | ENTITY | IfcPlacement | 
| IfcExtrudedAreaSolid | ENTITY | IfcRepresentationItem | 
| IfcExtrudedAreaSolid | ENTITY | IfcGeometricRepresentationItem | 
| IfcFirstProjAxis | FUNCTION | IfcGeometricRepresentationItem | 
| IfcFirstProjAxis | FUNCTION | IfcRepresentationItem | 
| IfcGeometricRepresentationItem | ENTITY | IfcPlacement | 
| IfcGradientCurve | ENTITY | IfcPlacement | 
| IfcLayeredItem | SELECT | IfcRepresentationItem | 
| IfcLinearPlacement | ENTITY | IfcAxis2PlacementLinear | 
| IfcMirroredProfileDef | ENTITY | IfcRepresentationItem | 
| IfcMirroredProfileDef | ENTITY | IfcGeometricRepresentationItem | 
| IfcNormalise | FUNCTION | IfcGeometricRepresentationItem | 
| IfcNormalise | FUNCTION | IfcRepresentationItem | 
| IfcOrthogonalComplement | FUNCTION | IfcRepresentationItem | 
| IfcOrthogonalComplement | FUNCTION | IfcGeometricRepresentationItem | 
| IfcPlacement | ENTITY | IfcAxis2PlacementLinear | 
| IfcPolynomialCurve | ENTITY | IfcPlacement | 
| IfcRepresentation | ENTITY | IfcRepresentationItem | 
| IfcRepresentationItem | ENTITY | IfcGeometricRepresentationItem | 
| IfcRevolvedAreaSolid | ENTITY | IfcRepresentationItem | 
| IfcRevolvedAreaSolid | ENTITY | IfcGeometricRepresentationItem | 
| IfcScalarTimesVector | FUNCTION | IfcRepresentationItem | 
| IfcScalarTimesVector | FUNCTION | IfcGeometricRepresentationItem | 
| IfcSecondProjAxis | FUNCTION | IfcRepresentationItem | 
| IfcSecondProjAxis | FUNCTION | IfcGeometricRepresentationItem | 
| IfcSectionedSolidHorizontal | ENTITY | IfcAxis2PlacementLinear | 
| IfcSectionedSurface | ENTITY | IfcAxis2PlacementLinear | 
| IfcSegmentedReferenceCurve | ENTITY | IfcPlacement | 
| IfcShapeRepresentationTypes | FUNCTION | IfcRepresentationItem | 
| IfcStyledItem | ENTITY | IfcRepresentationItem | 
| IfcSurfaceOfLinearExtrusion | ENTITY | IfcRepresentationItem | 
| IfcSurfaceOfLinearExtrusion | ENTITY | IfcGeometricRepresentationItem | 
| IfcSurfaceOfRevolution | ENTITY | IfcRepresentationItem | 
| IfcSurfaceOfRevolution | ENTITY | IfcGeometricRepresentationItem | 
| IfcTopologyRepresentationTypes | FUNCTION | IfcRepresentationItem | 
| IfcVectorDifference | FUNCTION | IfcGeometricRepresentationItem | 
| IfcVectorDifference | FUNCTION | IfcRepresentationItem | 
| IfcVectorSum | FUNCTION | IfcGeometricRepresentationItem | 
| IfcVectorSum | FUNCTION | IfcRepresentationItem |