IfcSpaceBoundarySelect

BACnet MVD

#### IfcSpaceBoundarySelect

Natural language names

| Space Boundary Select
| Sélection de type de limite d'espace

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcSpaceBoundarySelect |  |  | ADDED |

##### Semantic definitions at the type

Type definition

The IfcSpaceBoundarySelect selects either an internal space for internal or external space boundaries, or an external spatial element for external space boundaries at the outer envelop of the building.

> HISTORY New select type in IFC4.

SELECT

- IfcSpace,
- IfcExternalSpatialElement

Select definition

Type | Description
--- | ---
IfcSpace |
IfcExternalSpatialElement |

##### Formal representations

XML Specification
`<xs:group name="IfcSpaceBoundarySelect">
<xs:choice>
<xs:element ref="ifc:IfcExternalSpatialElement"/>
<xs:element ref="ifc:IfcSpace"/>
</xs:choice>
</xs:group>
`
EXPRESS Specification
`TYPE IfcSpaceBoundarySelect = SELECT (
IfcSpace,
IfcExternalSpatialElement);
END_TYPE;

EXPRESS-G diagram

`

References: IfcRelSpaceBoundary

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