Surface Side |
IfcSurfaceSide is a denotion of whether negative, positive or both sides of a surface are being referenced.
NOTE Type adapted from surface_side defined in ISO10303-46.
HISTORY New enumeration type in IFC2.0
Constant | Description |
---|---|
POSITIVE | The side of a surface which is in the same direction as the surface normal derived from the mathematical definition. |
NEGATIVE | The side of a surface which is in the opposite direction than the surface normal derived from the mathematical definition. |
BOTH | Both, positive and negative side. |
<xs:simpleType name="IfcSurfaceSide">
<xs:restriction base="xs:string">
<xs:enumeration value="positive"/>
<xs:enumeration value="negative"/>
<xs:enumeration value="both"/>
</xs:restriction>
</xs:simpleType>
TYPE IfcSurfaceSide = ENUMERATION OF (
POSITIVE,
NEGATIVE,
BOTH);
END_TYPE;