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
AXIS1Usually x-axis.
AXIS2Usually y-axis.
AXIS3Usually 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"/>
EXPRESS Specification
TYPE IfcLayerSetDirectionEnum = ENUMERATION OF (

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcMaterialLayerSetUsage IfcMaterialLayerWithOffsets

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