 
|  | Vector Or Direction | 
|  | vecteur ou direction | 
The IfcVectorOrDirection enables a choice between IfcVector and IfcDirection for vector functions.
NOTE Definition according to ISO/CD 10303-42:1992
This type is used to identify the types of entity which can participate in vector computations.
NOTE Type adapted from vector_or_direction defined in ISO 10303-42.
HISTORY New type in IFC1.5.
| Type | Description | 
|---|---|
| IfcDirection | |
| IfcVector | 
 <xs:group name="IfcVectorOrDirection">
  <xs:choice>
   <xs:element ref="ifc:IfcDirection"/>
   <xs:element ref="ifc:IfcVector"/>
  </xs:choice>
 </xs:group>
TYPE IfcVectorOrDirection = SELECT (
 IfcDirection, 
 IfcVector);
END_TYPE;