Figure 241 — Lighting Geometry
Elements emitting light provide a 'Lighting' representation. Examples of such elements include lamps and light fixtures. Such representation may be used for 3D rendering or lighting design.
The representation identifier and type and the only allowed single representation item of the 'Lighting' representation are:
Figure 241 illustrates an instance diagram.
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Figure 241 — Lighting Geometry |
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<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="a0002f8b-7b38-44ff-9bbb-862d6ccd54b1" name="Lighting Geometry" applicableSchema="IFC4" applicableEntity="IfcElement">
<Rules>
<AttributeRule AttributeName="Representation">
<EntityRules>
<EntityRule EntityName="IfcProductDefinitionShape">
<AttributeRules>
<AttributeRule AttributeName="Representations">
<EntityRules>
<EntityRule EntityName="IfcShapeRepresentation">
<AttributeRules>
<AttributeRule AttributeName="ContextOfItems">
<EntityRules>
<EntityRule EntityName="IfcGeometricRepresentationContext" />
</EntityRules>
</AttributeRule>
<AttributeRule RuleID="Identifier" AttributeName="RepresentationIdentifier">
<EntityRules>
<EntityRule EntityName="IfcLabel">
<Constraints>
<Constraint Expression="Identifier[Value] = 'Lighting'" />
</Constraints>
</EntityRule>
</EntityRules>
</AttributeRule>
<AttributeRule RuleID="Type" AttributeName="RepresentationType">
<EntityRules>
<EntityRule EntityName="IfcLabel">
<Constraints>
<Constraint Expression="Type[Value] = 'LightSource'" />
</Constraints>
</EntityRule>
</EntityRules>
</AttributeRule>
<AttributeRule RuleID="Items" AttributeName="Items">
<EntityRules>
<EntityRule EntityName="IfcLightSource">
<AttributeRules>
<AttributeRule AttributeName="LightColour">
<EntityRules>
<EntityRule EntityName="IfcColourRgb" />
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
<AttributeRule AttributeName="Name" />
<AttributeRule AttributeName="Description" />
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</Rules>
</ConceptTemplate>
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