Materialdefinition | |
Material Definition | |
Définition de matériau |
Item | SPF | XML | Change | Description | IFC2x3 to IFC4 |
---|---|---|---|---|
IfcMaterialDefinition | ADDED |
IfcMaterialDefinition is a general supertype for all material related information items in IFC that have common material related properties that may include association of material with some shape parameters or assignments to identified parts of a component.
There are three ways of assigning materials to a single component or multiple components; they are characterized as:
Each instantiable subtype of IfcMaterialDefinition may have material properties assigned, or have an external classification of its definition. It can be assigned to either a subtype of IfcElement, or a subtype of IfcElementType by using the objectified relationship IfcRelAssociatesMaterial.
HISTORY New entity in IFC4
# | Attribute | Type | Cardinality | Description | C |
---|---|---|---|---|---|
AssociatedTo | IfcRelAssociatesMaterial @RelatingMaterial | S[0:?] | Use of the IfcMaterialDefinition subtypes within the material association of an element occurrence or element type. The association is established by the IfcRelAssociatesMaterial relationship. | X | |
HasExternalReferences | IfcExternalReferenceRelationship @RelatedResourceObjects | S[0:?] | Reference to external references, e.g. library, classification, or document information, that are associated to the material. | X | |
HasProperties | IfcMaterialProperties @Material | S[0:?] | Material properties assigned to instances of subtypes of IfcMaterialDefinition. | X |
# | Attribute | Type | Cardinality | Description | C |
---|---|---|---|---|---|
IfcMaterialDefinition | |||||
AssociatedTo | IfcRelAssociatesMaterial @RelatingMaterial | S[0:?] | Use of the IfcMaterialDefinition subtypes within the material association of an element occurrence or element type. The association is established by the IfcRelAssociatesMaterial relationship. | X | |
HasExternalReferences | IfcExternalReferenceRelationship @RelatedResourceObjects | S[0:?] | Reference to external references, e.g. library, classification, or document information, that are associated to the material. | X | |
HasProperties | IfcMaterialProperties @Material | S[0:?] | Material properties assigned to instances of subtypes of IfcMaterialDefinition. | X |
<xs:element name="IfcMaterialDefinition" type="ifc:IfcMaterialDefinition" abstract="true" substitutionGroup="ifc:Entity" nillable="true"/>
<xs:complexType name="IfcMaterialDefinition" abstract="true">
<xs:complexContent>
<xs:extension base="ifc:Entity">
<xs:sequence>
<xs:element name="HasProperties" nillable="true" minOccurs="0">
<xs:complexType>
<xs:sequence>
<xs:element ref="ifc:IfcMaterialProperties" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute ref="ifc:itemType" fixed="ifc:IfcMaterialProperties"/>
<xs:attribute ref="ifc:cType" fixed="set"/>
<xs:attribute ref="ifc:arraySize" use="optional"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
ENTITY IfcMaterialDefinition
ABSTRACT SUPERTYPE OF(ONEOF(IfcMaterial, IfcMaterialConstituent, IfcMaterialConstituentSet, IfcMaterialLayer, IfcMaterialLayerSet, IfcMaterialProfile, IfcMaterialProfileSet));
INVERSE
AssociatedTo : SET [0:?] OF IfcRelAssociatesMaterial FOR RelatingMaterial;
HasExternalReferences : SET OF IfcExternalReferenceRelationship FOR RelatedResourceObjects;
HasProperties : SET OF IfcMaterialProperties FOR Material;
END_ENTITY;