IFC 4.3.0.1 (IFC4X3) development

4.2.6.1 Material Constituent Set

A material constituent set may have its constituents associated to arbitrary geometry using IfcShapeAspect. This association is done by comparing the name of the material constituent with the name of an IfcShapeAspect assigned to a portion of the product's representation.

The following diagram shows the generic classes and relationships used when applying this concept. In addition, concepts may have particular importance to common or standardised industry practices and scenarios. For these specific usage scenarios, the tables below shows a recommended list of general usage patterns that users may adopt.

G IfcProduct IfcProduct 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] IfcRelAssociatesMaterial IfcRelAssociatesMaterial 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatedObjects [1:?] 6. RelatingMaterial [1:1] IfcProduct:HasAssociations1->IfcRelAssociatesMaterial:RelatedObjects0 IfcProductDefinitionShape IfcProductDefinitionShape 1. Name [0:1] 2. Description [0:1] 3. Representations [1:?]      ShapeOfProduct [1:?]      HasShapeAspects [0:?] IfcProduct:Representation1->IfcProductDefinitionShape:ShapeOfProduct0 IfcMaterialConstituentSet IfcMaterialConstituentSet      AssociatedTo [0:?]      HasExternalReferences [0:?]      HasProperties [0:?] 1. Name [0:1] 2. Description [0:1] 3. MaterialConstituents [1:?] IfcRelAssociatesMaterial:RelatingMaterial1->IfcMaterialConstituentSet:AssociatedTo0 IfcShapeRepresentation IfcShapeRepresentation 1. ContextOfItems [1:1] 2. RepresentationIdentifier [0:1] 3. RepresentationType [0:1] 4. Items [1:?]      RepresentationMap [0:1]      LayerAssignments [0:?]      OfProductRepresentation [0:?]      OfShapeAspect [0:1] IfcProductDefinitionShape:Representations1->IfcShapeRepresentation:OfProductRepresentation0 IfcRepresentationItem IfcRepresentationItem      LayerAssignment [0:1]      StyledByItem [0:1] IfcShapeRepresentation:Items1->IfcRepresentationItem:IfcRepresentationItem0 IfcShapeRepresentation_0 IfcShapeRepresentation 1. ContextOfItems [1:1] 2. RepresentationIdentifier [0:1] 3. RepresentationType [0:1] 4. Items [1:?]      RepresentationMap [0:1]      LayerAssignments [0:?]      OfProductRepresentation [0:?]      OfShapeAspect [0:1] IfcShapeRepresentation_0:Items1->IfcRepresentationItem:IfcRepresentationItem0 IfcShapeAspect IfcShapeAspect 1. ShapeRepresentations [1:?] ShapeAspectName 2. Name [0:1] 3. Description [0:1] 4. ProductDefinitional [1:1] 5. PartOfProductDefinitionShape [0:1]      HasExternalReferences [0:?] IfcShapeAspect:PartOfProductDefinitionShape1->IfcProductDefinitionShape:HasShapeAspects0 IfcShapeAspect:ShapeRepresentations1->IfcShapeRepresentation_0:OfShapeAspect0 IfcLabel IfcLabel IfcShapeAspect:Name1->IfcLabel:IfcLabel0 IfcMaterialConstituent IfcMaterialConstituent      AssociatedTo [0:?]      HasExternalReferences [0:?]      HasProperties [0:?] ConstituentName 1. Name [0:1] 2. Description [0:1] 3. Material [1:1] 4. Fraction [0:1] 5. Category [0:1]      ToMaterialConstituentSet [1:1] IfcMaterialConstituentSet:MaterialConstituents1->IfcMaterialConstituent:ToMaterialConstituentSet0 IfcLabel_0 IfcLabel IfcMaterialConstituent:Name1->IfcLabel_0:IfcLabel0 IfcMaterial IfcMaterial      AssociatedTo [0:?]      HasExternalReferences [0:?]      HasProperties [0:?] 1. Name [1:1] 2. Description [0:1] 3. Category [0:1]      HasRepresentation [0:1]      IsRelatedWith [0:?]      RelatesTo [0:1] IfcMaterialConstituent:Material1->IfcMaterial:IfcMaterial0 IfcLabel_1 IfcLabel IfcMaterialConstituent:Category1->IfcLabel_1:IfcLabel0 IfcNormalisedRatioMeasure IfcNormalisedRatioMeasure IfcMaterialConstituent:Fraction1->IfcNormalisedRatioMeasure:IfcNormalisedRatioMeasure0
Figure 4.2.6.1.A

General Usage

ApplicableEntity
IfcActuator
IfcAirTerminalBox
IfcAirTerminal
IfcAirToAirHeatRecovery
IfcAlarm
IfcAudioVisualAppliance
IfcBoiler
IfcBurner
IfcCableCarrierFitting
IfcChiller
IfcCoil
IfcCommunicationsAppliance
IfcCompressor
IfcCondenser
IfcController
IfcCooledBeam
IfcCoolingTower
IfcDamper
IfcDistributionChamberElement
IfcDoor
IfcDuctSilencer
IfcElectricAppliance
IfcElectricDistributionBoard
IfcElectricFlowStorageDevice
IfcElectricGenerator
IfcElectricMotor
IfcElectricTimeControl
IfcEngine
IfcEvaporativeCooler
IfcEvaporator
IfcFan
IfcFilter
IfcFireSuppressionTerminal
IfcFlowInstrument
IfcFlowMeter
IfcFurniture
IfcHeatExchanger
IfcHumidifier
IfcInterceptor
IfcJunctionBox
IfcLamp
IfcLightFixture
IfcMedicalDevice
IfcMotorConnection
IfcOutlet
IfcProtectiveDevice
IfcPump
IfcRailing
IfcSanitaryTerminal
IfcSensor
IfcSolarDevice
IfcSpaceHeater
IfcStackTerminal
IfcSwitchingDevice
IfcSystemFurnitureElement
IfcTank
IfcTransformer
IfcTubeBundle
IfcUnitaryControlElement
IfcUnitaryEquipment
IfcValve
IfcWasteTerminal
IfcWindow
Table 4.2.6.1.B

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