Figure 253 — Survey Points Geometry
Elements may provide a 'SurveyPoints' representation for defining a contour such as for IfcSite. It contains the survey points as a set of Cartesian points and optionally breaklines.
The representation identifier and type and the only allowed single representation item of the 'SurveyPoints' representation are:
Figure 253 illustrates an instance diagram.
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Figure 253 — Survey Points Geometry |
<?xml version="1.0" encoding="utf-8"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="2a90f52f-7961-4dbd-8560-546e2d0b73bb" name="Survey Points Geometry" applicableSchema="IFC4" applicableEntity="IfcSite">
<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] = 'SurveyPoints'" />
</Constraints>
</EntityRule>
</EntityRules>
</AttributeRule>
<AttributeRule RuleID="Type" AttributeName="RepresentationType">
<EntityRules>
<EntityRule EntityName="IfcLabel">
<Constraints>
<Constraint Expression="Type[Value] = 'GeometricCurveSet'" />
</Constraints>
</EntityRule>
</EntityRules>
</AttributeRule>
<AttributeRule RuleID="Items" AttributeName="Items">
<EntityRules>
<EntityRule EntityName="IfcGeometricCurveSet">
<AttributeRules>
<AttributeRule AttributeName="Elements">
<EntityRules>
<EntityRule EntityName="IfcCartesianPoint" />
<EntityRule EntityName="IfcPolyline" />
</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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