IfcStyleAssignmentSelect

Item	Change	Description
IFC2x3 to IFC4 4.0.0.0
IfcStyleAssignmentSelect	ADDED
IFC4 Addendum 2 Technical Corrigendum 1 4.0.2.1
IfcStyleAssignmentSelect	MODIFIED	Status changed to Deprecated.
IFC4x1 Final 4.1.0.0
IfcStyleAssignmentSelect	MODIFIED	Status changed from Deprecated.
IFC2x3 to IFC4 4.0.0.0
IfcStyleAssignmentSelect	ADDED
IFC4 Addendum 2 Technical Corrigendum 1 4.0.2.1
IfcStyleAssignmentSelect	MODIFIED	Status changed to Deprecated.
IFC4x1 Final 4.1.0.0
IfcStyleAssignmentSelect	MODIFIED	Status changed from Deprecated.

Semantic definitions at the type

Type definition

The style assignment select is a selection of two wasy of assigning presentation styles to an IfcStyledItem.

by directly assigning presentation styles as subtypes of IfcPresentationStyle
by assigning presentation stypes via an intermediate collection entity IfcPresentationStyleAssignment

HISTORY New select type in IFC4.

IFC4 CHANGE The select type has been introduced to provide an upward compatible improvement for assigning styles to a styled items.

DEPRECATION Using IfcPresentationStyleAssignment is deprecated, use the direct assignment of a subtype of IfcPresentationStyle instead.

Select definition

Type	Description
IfcPresentationStyleAssignment
IfcPresentationStyle

Formal representations

XML Specification

 <xs:group name="IfcStyleAssignmentSelect">

  <xs:choice>

   <xs:element ref="ifc:IfcPresentationStyle"/>

   <xs:element ref="ifc:IfcPresentationStyleAssignment"/>

  </xs:choice>

 </xs:group>

EXPRESS Specification


TYPE IfcStyleAssignmentSelect = SELECT (

 IfcPresentationStyleAssignment, 
 IfcPresentationStyle);
END_TYPE;


 EXPRESS-G diagram