| Definition | Type | Referenced Entity |
|---|
| IfcAxis1Placement | ENTITY | IfcRepresentationItem |
| IfcAxis1Placement | ENTITY | IfcDirection |
| IfcAxis1Placement | ENTITY | IfcGeometricRepresentationItem |
| IfcAxis2Placement2D | ENTITY | IfcDirection |
| IfcAxis2Placement3D | ENTITY | IfcDirection |
| IfcAxis2PlacementLinear | ENTITY | IfcDirection |
| IfcBaseAxis | FUNCTION | IfcRepresentationItem |
| IfcBaseAxis | FUNCTION | IfcGeometricRepresentationItem |
| IfcBaseAxis | FUNCTION | IfcDirection |
| IfcBuild2Axes | FUNCTION | IfcRepresentationItem |
| IfcBuild2Axes | FUNCTION | IfcGeometricRepresentationItem |
| IfcBuild2Axes | FUNCTION | IfcDirection |
| IfcBuildAxes | FUNCTION | IfcDirection |
| IfcBuildAxes | FUNCTION | IfcGeometricRepresentationItem |
| IfcBuildAxes | FUNCTION | IfcRepresentationItem |
| IfcCartesianTransformationOperator | ENTITY | IfcDirection |
| IfcCartesianTransformationOperator2D | ENTITY | IfcDirection |
| IfcCartesianTransformationOperator3D | ENTITY | IfcDirection |
| IfcConvertDirectionInto2D | FUNCTION | IfcRepresentationItem |
| IfcConvertDirectionInto2D | FUNCTION | IfcGeometricRepresentationItem |
| IfcConvertDirectionInto2D | FUNCTION | IfcDirection |
| IfcCrossProduct | FUNCTION | IfcRepresentationItem |
| IfcCrossProduct | FUNCTION | IfcGeometricRepresentationItem |
| IfcCrossProduct | FUNCTION | IfcDirection |
| IfcDotProduct | FUNCTION | IfcDirection |
| IfcExtrudedAreaSolid | ENTITY | IfcRepresentationItem |
| IfcExtrudedAreaSolid | ENTITY | IfcGeometricRepresentationItem |
| IfcExtrudedAreaSolid | ENTITY | IfcDirection |
| IfcFirstProjAxis | FUNCTION | IfcGeometricRepresentationItem |
| IfcFirstProjAxis | FUNCTION | IfcDirection |
| IfcFirstProjAxis | FUNCTION | IfcRepresentationItem |
| IfcFixedReferenceSweptAreaSolid | ENTITY | IfcDirection |
| IfcGeometricRepresentationContext | ENTITY | IfcDirection |
| IfcGeometricRepresentationItem | ENTITY | IfcDirection |
| IfcGeometricRepresentationSubContext | ENTITY | IfcDirection |
| IfcGridPlacementDirectionSelect | SELECT | IfcDirection |
| IfcLayeredItem | SELECT | IfcRepresentationItem |
| IfcLightSourceDirectional | ENTITY | IfcDirection |
| IfcLightSourceSpot | ENTITY | IfcDirection |
| IfcMirroredProfileDef | ENTITY | IfcDirection |
| IfcMirroredProfileDef | ENTITY | IfcGeometricRepresentationItem |
| IfcMirroredProfileDef | ENTITY | IfcRepresentationItem |
| IfcNormalise | FUNCTION | IfcGeometricRepresentationItem |
| IfcNormalise | FUNCTION | IfcRepresentationItem |
| IfcNormalise | FUNCTION | IfcDirection |
| IfcOffsetCurve3D | ENTITY | IfcDirection |
| IfcOrthogonalComplement | FUNCTION | IfcGeometricRepresentationItem |
| IfcOrthogonalComplement | FUNCTION | IfcRepresentationItem |
| IfcOrthogonalComplement | FUNCTION | IfcDirection |
| IfcRepresentation | ENTITY | IfcRepresentationItem |
| IfcRepresentationItem | ENTITY | IfcGeometricRepresentationItem |
| IfcRevolvedAreaSolid | ENTITY | IfcRepresentationItem |
| IfcRevolvedAreaSolid | ENTITY | IfcGeometricRepresentationItem |
| IfcSameDirection | FUNCTION | IfcDirection |
| IfcScalarTimesVector | FUNCTION | IfcDirection |
| IfcScalarTimesVector | FUNCTION | IfcRepresentationItem |
| IfcScalarTimesVector | FUNCTION | IfcGeometricRepresentationItem |
| IfcSecondProjAxis | FUNCTION | IfcDirection |
| IfcSecondProjAxis | FUNCTION | IfcGeometricRepresentationItem |
| IfcSecondProjAxis | FUNCTION | IfcRepresentationItem |
| IfcShapeRepresentationTypes | FUNCTION | IfcRepresentationItem |
| IfcStructuralCurveConnection | ENTITY | IfcDirection |
| IfcStructuralCurveMember | ENTITY | IfcDirection |
| IfcStyledItem | ENTITY | IfcRepresentationItem |
| IfcSurfaceOfLinearExtrusion | ENTITY | IfcDirection |
| IfcSurfaceOfLinearExtrusion | ENTITY | IfcGeometricRepresentationItem |
| IfcSurfaceOfLinearExtrusion | ENTITY | IfcRepresentationItem |
| IfcSurfaceOfRevolution | ENTITY | IfcRepresentationItem |
| IfcSurfaceOfRevolution | ENTITY | IfcGeometricRepresentationItem |
| IfcTopologyRepresentationTypes | FUNCTION | IfcRepresentationItem |
| IfcVector | ENTITY | IfcDirection |
| IfcVectorDifference | FUNCTION | IfcRepresentationItem |
| IfcVectorDifference | FUNCTION | IfcGeometricRepresentationItem |
| IfcVectorDifference | FUNCTION | IfcDirection |
| IfcVectorOrDirection | SELECT | IfcDirection |
| IfcVectorSum | FUNCTION | IfcRepresentationItem |
| IfcVectorSum | FUNCTION | IfcDirection |
| IfcVectorSum | FUNCTION | IfcGeometricRepresentationItem |