4.9.1.3 Type Lighting Geometry

For elements that emit light such as lamps or light fixtures, this represents the light emission of the item having IfcShapeRepresentation.RepresentationType of 'LightSource' and containing one or more IfcLightSource subtypes.

Figure 102 illustrates an instance diagram.

Type Lighting GeometryIfcDistributionElementTypeIfcRepresentationMapIfcAxis2Placement3DIfcAxis2Placement2DIfcShapeRepresentationIfcGeometricRepresentationContextIfcLabelIfcLabelIfcLightSource

Figure 102 — Type Lighting Geometry

mvdXML Specification
<?xml version="1.0"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="6b6bcc41-3928-4db0-addb-58b771a27d19" name="Type Lighting Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcDistributionElementType">
  <Rules>
    <AttributeRule AttributeName="RepresentationMaps">
      <EntityRules>
        <EntityRule EntityName="IfcRepresentationMap">
          <AttributeRules>
            <AttributeRule AttributeName="MappedRepresentation">
              <EntityRules>
                <EntityRule EntityName="IfcShapeRepresentation">
                  <AttributeRules>
                    <AttributeRule AttributeName="ContextOfItems">
                      <EntityRules>
                        <EntityRule EntityName="IfcGeometricRepresentationContext" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="RepresentationIdentifier">
                      <EntityRules>
                        <EntityRule EntityName="IfcLabel">
                          <AttributeRules>
                            <AttributeRule Description="Value=Lighting" AttributeName="Value=Lighting" />
                          </AttributeRules>
                        </EntityRule>
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule RuleID="Type" AttributeName="RepresentationType">
                      <EntityRules>
                        <EntityRule EntityName="IfcLabel" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule RuleID="Geometry" AttributeName="Items">
                      <EntityRules>
                        <EntityRule EntityName="IfcLightSource" />
                      </EntityRules>
                    </AttributeRule>
                  </AttributeRules>
                </EntityRule>
              </EntityRules>
            </AttributeRule>
            <AttributeRule AttributeName="MappingOrigin">
              <EntityRules>
                <EntityRule EntityName="IfcAxis2Placement3D" />
                <EntityRule EntityName="IfcAxis2Placement2D" />
              </EntityRules>
            </AttributeRule>
          </AttributeRules>
        </EntityRule>
      </EntityRules>
    </AttributeRule>
  </Rules>
</ConceptTemplate>

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