Materials are directly associated with products and product types to indicate a uniform material for the entire object.
Figure 27 illustrates an instance diagram.
Figure 27 — Material Single |
<?xml version="1.0"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="5f39a814-44a0-4fb3-8dc6-ddaa0560fc54" name="Material Single" status="sample" applicableSchema="IFC4" applicableEntity="IfcObjectDefinition">
<Rules>
<AttributeRule AttributeName="HasAssociations">
<EntityRules>
<EntityRule EntityName="IfcRelAssociatesMaterial">
<AttributeRules>
<AttributeRule AttributeName="RelatingMaterial">
<EntityRules>
<EntityRule EntityName="IfcMaterial">
<References>
<Template ref="5986b61a-b79f-44e0-a93f-9fddf470a4e1" />
</References>
</EntityRule>
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</Rules>
</ConceptTemplate>