IfcAxis2Placement

Natural language names
Axis2 Placement
Semantic definitions at the type
Type definition

The IfcAxis2Placement allows for the choice of various placement entities.

NOTE  Definition according to ISO/CD 10303-42:1992
This select type represents the placing of mutually perpendicular axes in two-dimensional or in threedimensional Cartesian space.
This select type enables entities requiring axis placement information to reference the axes without specifying the space dimensionality.

NOTE  Type adapted from axis2_placement defined in ISO 10303-42.

HISTORY  New type in IFC1.5

Select definition
TypeDescription
IfcAxis2Placement2D
IfcAxis2Placement3D
Formal representations
XML Specification
 <xs:group name="IfcAxis2Placement">
  <xs:choice>
   <xs:element ref="ifc:IfcAxis2Placement2D"/>
   <xs:element ref="ifc:IfcAxis2Placement3D"/>
  </xs:choice>
 </xs:group>
EXPRESS Specification
TYPE IfcAxis2Placement = SELECT (
 IfcAxis2Placement2D,
 IfcAxis2Placement3D);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcLocalPlacement IfcConic IfcRepresentationMap IfcPlanarBox IfcTextLiteral IfcGeometricRepresentationContext IfcGeometricRepresentationSubContext

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