Definition from ISO/CD 10303-42:1992: This select type collects together both versions of the placement as used in two dimensional or in three dimensional Cartesian space. This enables entities requiring this information to reference them without specifying the space dimensionality.
NOTE: Corresponding STEP type: axis2_placement, please refer to ISO/IS 10303-42:1994, p. 19 for the final definition of the formal standard.
HISTORY: New type in IFC Release 1.5
| Constant | Description |
|---|---|
| IfcAxis2Placement2D | |
| IfcAxis2Placement3D |
<xs:group name="IfcAxis2Placement">
<xs:choice>
<xs:element ref="ifc:IfcAxis2Placement2D"/>
<xs:element ref="ifc:IfcAxis2Placement3D"/>
</xs:choice>
</xs:group>
TYPE IfcAxis2Placement = SELECT (
IfcAxis2Placement2D,
IfcAxis2Placement3D);
END_TYPE;
EXPRESS-G diagram
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