IfcAxis2Placement

BACnet MVD

#### IfcAxis2Placement

Natural language names

| Axis2 Placement

##### Semantic definitions at the type

Type definition

The IfcAxis2Placement allows for the choice of various placement entities.

> NOTE Definition according to ISO/CD 10303-42:1992
> This select type represents the placing of mutually perpendicular axes in two-dimensional or in threedimensional Cartesian space.
> This select type enables entities requiring axis placement information to reference the axes without specifying the space dimensionality.

> NOTE Type adapted from axis2_placement defined in ISO 10303-42.

> HISTORY New type in IFC1.5

Select definition

Type | Description
--- | ---
IfcAxis2Placement2D |
IfcAxis2Placement3D |

##### Formal representations

XML Specification
`<xs:group name="IfcAxis2Placement">
<xs:choice>
<xs:element ref="ifc:IfcAxis2Placement2D"/>
<xs:element ref="ifc:IfcAxis2Placement3D"/>
</xs:choice>
</xs:group>
`
EXPRESS Specification
`TYPE IfcAxis2Placement = SELECT (
IfcAxis2Placement2D,
IfcAxis2Placement3D);
END_TYPE;

EXPRESS-G diagram

`

References: IfcLocalPlacement IfcConic IfcRepresentationMap IfcPlanarBox IfcTextLiteral IfcGeometricRepresentationContext IfcGeometricRepresentationSubContext

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