IfcStructuralSurfaceActivityTypeEnum

Natural language names
enStructural Surface Activity Type Enum
Change log
ItemSPFXMLChangeDescription
IFC2x3 to IFC4
    IfcStructuralSurfaceActivityTypeEnumADDED
Semantic definitions at the type
Type definition

This enumeration defines the distribution of load values in a surface action or reaction.

HISTORY  New enumeration in IFC4
Enumeration definition
ConstantDescription
CONSTThe load has a constant value over its entire extent.
BILINEARThe load value is bilinearly distributed over the load's extent.
DISCRETEThe load is specified as a series of discrete load points.
ISOCONTOURThe load is specified by a series of iso-curves (level sets), i.e. curves at which the load value is constant. These curves run perpendicularly to the load gradient.
USERDEFINEDThe load distribution is user-defined.
NOTDEFINEDThe load distribution is undefined.
Formal representations
XSD Specification
 <xs:simpleType name="IfcStructuralSurfaceActivityTypeEnum">
  <xs:restriction base="xs:string">
   <xs:enumeration value="const"/>
   <xs:enumeration value="bilinear"/>
   <xs:enumeration value="discrete"/>
   <xs:enumeration value="isocontour"/>
   <xs:enumeration value="userdefined"/>
   <xs:enumeration value="notdefined"/>
  </xs:restriction>
 </xs:simpleType>
EXPRESS Specification
TYPE IfcStructuralSurfaceActivityTypeEnum = ENUMERATION OF (
 CONST,
 BILINEAR,
 DISCRETE,
 ISOCONTOUR,
 USERDEFINED,
 NOTDEFINED);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

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