Figure 21 — Alignment Attributes
Alignments may be used to provide a layout reference for infrastructure elements.
Figure 21 illustrates an instance diagram.
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Figure 21 — Alignment Attributes |
<?xml version="1.0"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="48afbff3-893b-4791-94dd-fface6eac658" name="Alignment Attributes" status="sample" applicableSchema="IFC4" applicableEntity="IfcAlignment">
<Rules>
<AttributeRule AttributeName="Axis">
<EntityRules>
<EntityRule EntityName="IfcAlignmentCurve">
<AttributeRules>
<AttributeRule AttributeName="Horizontal">
<EntityRules>
<EntityRule EntityName="IfcAlignment2DHorizontal">
<AttributeRules>
<AttributeRule AttributeName="Segments">
<EntityRules>
<EntityRule EntityName="IfcAlignment2DHorizontalSegment">
<AttributeRules>
<AttributeRule AttributeName="CurveGeometry">
<EntityRules>
<EntityRule EntityName="IfcCircularArcSegment2D" />
<EntityRule EntityName="IfcClothoidalArcSegment2D" />
<EntityRule EntityName="IfcLineSegment2D" />
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
<AttributeRule AttributeName="Vertical">
<EntityRules>
<EntityRule EntityName="IfcAlignment2DVertical">
<AttributeRules>
<AttributeRule AttributeName="Segments">
<EntityRules>
<EntityRule EntityName="IfcAlignment2DVerSegCircularArc" />
<EntityRule EntityName="IfcAlignment2DVerSegLine" />
<EntityRule EntityName="IfcAlignment2DVerSegParabolicArc" />
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</Rules>
</ConceptTemplate>
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