#### 8.8.2.1 IfcDirectionSenseEnum

IfcDirectionSenseEnum is an enumeration denoting whether sense of direction is positive or negative along the given axis.

Enumerated Item Definitions:

- POSITIVE: Direction defined to be positive.
- NEGATIVE: Direction defined to be negative.

> HISTORY New Type in IFC2x.

XSD Specification:

<xs:simpleType name="IfcDirectionSenseEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="positive"/>
<xs:enumeration value="negative"/>
</xs:restriction>
</xs:simpleType>

EXPRESS Specification:

TYPE IfcDirectionSenseEnum = ENUMERATION OF (
| POSITIVE, NEGATIVE);
END_TYPE;

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