IfcLayerSetDirectionEnum

BACnet MVD

#### IfcLayerSetDirectionEnum

Natural language names

| Layer Set Direction Enum

##### Semantic definitions at the type

Type definition

IfcLayerSetDirectionEnum provides identification of the axis of element geometry, denoting the layer set thickness direction, or direction of layer offsets.

> HISTORY New Type in IFC2x.

Enumeration definition

Constant | Description
--- | ---
AXIS1 | Usually x-axis.
AXIS2 | Usually y-axis.
AXIS3 | Usually z-axis.

##### Formal representations

XML Specification
`<xs:simpleType name="IfcLayerSetDirectionEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="axis1"/>
<xs:enumeration value="axis2"/>
<xs:enumeration value="axis3"/>
</xs:restriction>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcLayerSetDirectionEnum = ENUMERATION OF (
AXIS1,
AXIS2,
AXIS3);
END_TYPE;

EXPRESS-G diagram

`

References: IfcMaterialLayerSetUsage IfcMaterialLayerWithOffsets

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