IFC Object Model Reference
Industry Foundation Classes - Release 1.5.1
Model Reference Documentation

  IFC Release 1.5.1 Hierarchy  

  • IfcRoot
  • IfcModelingAid
  • IfcDesignGrid
  • IfcGridLevel
  • IfcGridAxis
  • IfcGridIntersection
  • IfcLocalPlacement
  • IfcConstrainedPlacement
    •
  • IfcPlacementConstraint
  • IfcConstraintRelIntersection
    •
  • IfcReferenceGeometryAid
  • IfcReferencePoint
  • IfcReferenceCurve
  • IfcReferenceSurface
    •
  • IfcRelationship
  • IfcRelContains
  • IfcRelGroups
  • IfcRelSequence
  • IfcRelProcessesProducts
  • IfcRelUsesResource
  • IfcRelNests
  • IfcRelNestsProcesses
  • IfcRelNestsCostElements
    •
  • IfcRelAssemblesElements
  • IfcRelAssemblesSpaces
  • IfcRelFillsElement
  • IfcRelVoidsElement
  • IfcRelSeparatesSpaces
  • IfcRelServicesBuildings
  • IfcRelConnectsElements
  • IfcRelConnectsPathElements
    •
  • IfcRelCostsElements
  • IfcRelAdjacencyReq
  • IfcRelCoversBldgElements
    •
  • IfcObject
  • IfcProject
  • IfcProxy
  • IfcResource
  • IfcControl
  • IfcConnectionGeometry
  • IfcPointConnectionGeometry
  • IfcLineConnectionGeometry
    •
  • IfcWorkSchedule
  • IfcCostElement
  • IfcSpaceProgram
    •
  • IfcDocument
  • IfcCostSchedule
    •
  • IfcGroup
  • IfcSystem
  • IfcZone
  • IfcSpaceProgramGroup
    •
  • IfcProcess
  • IfcWorkTask
    •
  • IfcProduct
  • IfcBuilding
  • IfcBuildingStorey
  • IfcSite
  • IfcSpatialElement
  • IfcSpace
  • IfcSpaceBoundary
    •
  • IfcElement
  • IfcOpeningElement
  • IfcBuildingElement
  • IfcBeam
  • IfcBuiltIn
  • IfcColumn
  • IfcCovering
  • IfcDoor
  • IfcFloor
  • IfcRoofSlab
  • IfcWall
  • IfcWindow
  • IfcDiscreteElement
  • IfcDistributionElement
  • IfcElectricalAppliance
  • IfcEquipment
  • IfcFixture
  • IfcFurniture
    •
  • IfcGeometricRepresentationItem
  • IfcBooleanResult
  • IfcBoundingBox
  • IfcCurve
  • IfcBoundedCurve
  • IfcCompositeCurve
  • Ifc2DCompositeCurve
    •
  • IfcPolyline
  • IfcTrimmedCurve
    •
  • IfcConic
  • IfcCircle
  • IfcEllipse
    •
  • IfcLine
    •
  • IfcCompositeCurveSegment
  • IfcDirection
  • IfcPlacement
  • IfcAxis1Placement
  • IfcAxis2Placement2D
  • IfcAxis2Placement3D
    •
  • IfcPoint
  • IfcCartesianPoint
    •
  • IfcPolyLoop
  • IfcHalfSpaceSolid
  • IfcBoxedHalfSpace
    •
  • IfcSolidModel
  • IfcAttDrivenExtrudedSolid
  • IfcAttDrivenClippedExtrudedSolid
    •
  • IfcAttDrivenRevolvedSolid
  • IfcAttDrivenClippedRevolvedSolid
    •
  • IfcCsgSolid
  • IfcManifoldSolidBrep
  • IfcFacetedBrep
  • IfcFacetedBrepWithVoids
    •
  • IfcSweptAreaSolid
  • IfcExtrudedAreaSolid
  • IfcAttDrivenExtrudedSegment
  • IfcAttDrivenMorphedExtrudedSegment
  • IfcAttDrivenTaperedExtrudedSegment
    •
  • IfcRevolvedAreaSolid
  • IfcAttDrivenRevolvedSegment
  • IfcAttDrivenMorphedRevolvedSegment
  • IfcAttDrivenTaperedRevolvedSegment
    •
  • IfcSurface
  • IfcCurveBoundedPlane
  • IfcElementarySurface
  • IfcPlane
    •
  • IfcVector
    •
  • IfcNamedUnit
  • IfcContextDependentUnit
  • IfcConversionBasedUnit
  • IfcSiUnit
    •
  • IfcProperty
  • IfcCalendarDate
  • IfcClassification
  • IfcClassificationList
  • IfcCost
  • IfcDateAndTime
  • IfcLocalTime
  • IfcMaterial
  • IfcMaterialList
  • IfcMaterialLayerSet
  • IfcMaterialLayer
  • MaterialLayerSetUsage
  • IfcOrganization
  • IfcPerson
  • IfcPersonAndOrganization
  • IfcProductShape
  • IfcShapeAspect
  • IfcPropertySet
  • IfcOccurrencePropertySet
  • IfcSharedPropertySet
    •
  • IfcObjectReference
  • IfcSimpleProperty
  • IfcPropertyWithUnit
    •
  • IfcAttDrivenProfileDef
  • IfcArbitraryProfileDef
  • IfcCircleProfileDef
  • IfcRectangleProfileDef
  • IfcTrapeziumProfileDef
    •
  • IfcTopologicalRepresentationItem
  • IfcConnectedFaceSet
  • IfcClosedShell
    •
  • IfcFace
  • IfcFaceBound
  • IfcFaceOuterBound
    •
  • IfcActorRole
  • IfcAddress
  • IfcAuditTrail
  • IfcClassificationNotation
  • IfcCoordinatedUniversalTimeOffset
  • IfcCostModifier
  • IfcDerivedUnit
  • IfcDerivedUnitElement
  • IfcDimensionalExponents
  • IfcMeasureWithUnit
  • IfcNotationString
  • IfcOwnerHistory
  • IfcProjectAppRegistry
  • IfcProjectTeamRegistry
  • IfcProjectMaterialRegistry
  • IfcPropertyTypeDef
  • IfcRegisteredApplication
  • IfcRepresentationContext
  • IfcShapeRepresentation
  • IfcTable
  • IfcTableRow
  • IfcTransaction
  • IfcUnitAssignment

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