 | Grid Placement Direction Select |
 | Sélection de la direction du placement de la grille |
| Item | SPF | XML | Change | Description | IFC2x3 to IFC4 |
|---|---|---|---|---|
| IfcGridPlacementDirectionSelect | ADDED |
IfcGridPlacementDirectionSelect enables the choice of defining a grid placement be either an explicit direction, or by referencing a second grid intersection to provide the direction.
HISTORY New select type in IFC4.
| Type | Description |
|---|---|
| IfcVirtualGridIntersection | |
| IfcDirection |
<xs:group name="IfcGridPlacementDirectionSelect">
<xs:choice>
<xs:element ref="ifc:IfcDirection"/>
<xs:element ref="ifc:IfcVirtualGridIntersection"/>
</xs:choice>
</xs:group>
TYPE IfcGridPlacementDirectionSelect = SELECT (
IfcVirtualGridIntersection,
IfcDirection);
END_TYPE;
References: IfcGridPlacement
EXPRESS-G diagram
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