IfcMaterialProperties

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcMaterialProperties			MODIFIED	Schema changed from IFCMATERIALPROPERTYRESOURCE to IFCMATERIALRESOURCE. Instantiation changed from ABSTRACT.
Name	X	X	MODIFIED	Name changed from Material to Name. Type changed from IfcMaterial to IfcIdentifier. Instantiation changed to OPTIONAL.
Description			ADDED
Properties			ADDED
Material			ADDED

Semantic definitions at the entity

Entity definition

The IfcMaterialProperties assigns a set of material properties to associated material definitions. The set may be identified by a Name and a Description. The IfcProperty (instantiable subtypes) is used to express the individual material properties by name, description, value and unit.

NOTE The set of material properties can be assigned to an individual IfcMaterial, a set or composite of materials (IfcMaterialConstituent, IfcMaterialConstituentSet), or set or individual material layer (IfcMaterialLayer, IfcMaterialLayerSet), or a set or individual material profile (IfcMaterialProfile, IfcMaterialProfileSet)

HISTORY New entity in IFC2x.

IFC4 CHANGE Entity made non-abstract. The subtypes IfcMechanicalMaterialProperties, IfcThermalMaterialProperties, IfcHygroscopicMaterialProperties, IfcGeneralMaterialProperties, IfcOpticalMaterialProperties, IfcWaterProperties, IfcFuelProperties, IfcProductsOfCombustionProperties, IfcExtendedMaterialProperties have been deleted, use IfcMaterialProperties instead.

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
4	Material	IfcMaterialDefinition		Reference to the material definition to which the set of properties is assigned. IFC4 CHANGE The datatype has been changed to supertype IfcMaterialDefinition.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	G
IfcPropertyAbstraction
	HasExternalReferences	IfcExternalReferenceRelationship @RelatedResourceObjects	S[0:?]	Reference to an external reference, e.g. library, classification, or document information, that is associated to the property definition. IFC4 CHANGE New inverse attribute.	X
IfcExtendedProperties
1	Name	IfcIdentifier	?	The name given to the set of properties.	X
2	Description	IfcText	?	Description for the set of properties.	X
3	Properties	IfcProperty	S[1:?]	The set of properties provided for this extended property collection.	X
IfcMaterialProperties
4	Material	IfcMaterialDefinition		Reference to the material definition to which the set of properties is assigned. IFC4 CHANGE The datatype has been changed to supertype IfcMaterialDefinition.	X

Formal representations

XML Specification

 <xs:element name="IfcMaterialProperties" type="ifc:IfcMaterialProperties" substitutionGroup="ifc:IfcExtendedProperties" nillable="true"/>

 <xs:complexType name="IfcMaterialProperties">

  <xs:complexContent>

   <xs:extension base="ifc:IfcExtendedProperties"/>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcMaterialProperties

 SUBTYPE OF (IfcExtendedProperties);

  Material : IfcMaterialDefinition;

END_ENTITY;

 EXPRESS-G diagram

	Material - Merkmale
	Material Properties
	Propriétés de matériau