IfcStyleAssignmentSelect

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcStyleAssignmentSelect			ADDED

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.

Enumeration definition

Constant	Description
IfcPresentationStyleAssignment
IfcPresentationStyle

Formal representations

XSD 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