IfcSweptAreaSolid

Semantic definitions at the entity

Entity definition

Definition from ISO/CD 10303-42:1992: The swept area solid entity collects the entities which are defined procedurally by sweeping action on planar bounded surfaces. The position is space of the swept solid will be dependent upon the position of the swept area. The swept area will be a face of the resulting swept area solid, except for the case of a revolved area solid with angle equal to 2 p (or 360 degrees).

The swept area is defined by a cross section (also referred to as profile), which is given as a closed two-dimensional boundary on an implicit plane. The swept area is defined in the xy plane of the position coordinate system, which is given for the swept area solid.

NOTE Corresponding STEP entity: swept_area_solid, The data type of SweptArea is modified and given by a profile definition (IfcProfileDef). A position coordinate system is defined by the Position attribute has been added. Please refer to ISO/IS 10303-42:1994, p. 183 for the final definition of the formal standard.

HISTORY New entity in IFC Release 1.5, the capabilities have been enhanced in IFC Release 2x.

Attribute definitions

#	Attribute	Type	Cardinality	Description	A
1	SweptArea	IfcProfileDef	[1:1]	The surface defining the area to be swept. It is given as a profile definition within the xy plane of the position coordinate system.	X
2	Position	IfcAxis2Placement3D	[1:1]	Position coordinate system for the swept area.	X

Formal Propositions

Rule	Description
WR22	The profile definition for the swept area solid shall be of type AREA.

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	A
IfcRepresentationItem
IfcGeometricRepresentationItem
IfcSolidModel
	Dim :=3	IfcDimensionCount	[1:1]	The space dimensionality of this class, it is always 3.	X
IfcSweptAreaSolid
1	SweptArea	IfcProfileDef	[1:1]	The surface defining the area to be swept. It is given as a profile definition within the xy plane of the position coordinate system.	X
2	Position	IfcAxis2Placement3D	[1:1]	Position coordinate system for the swept area.	X

Formal representations

XSD Specification

 <xs:element name="IfcSweptAreaSolid" type="ifc:IfcSweptAreaSolid" abstract="true" substitutionGroup="ifc:IfcSolidModel" nillable="true"/>

 <xs:complexType name="IfcSweptAreaSolid" abstract="true">

  <xs:complexContent>

   <xs:extension base="ifc:IfcSolidModel">

    <xs:sequence>

     <xs:element name="SweptArea" type="ifc:IfcProfileDef" nillable="true"/>

     <xs:element name="Position" type="ifc:IfcAxis2Placement3D" nillable="true"/>

    </xs:sequence>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcSweptAreaSolid

 ABSTRACT SUPERTYPE OF(ONEOF(IfcExtrudedAreaSolid, IfcRevolvedAreaSolid))

 SUBTYPE OF (IfcSolidModel);

  SweptArea : IfcProfileDef;

  Position : IfcAxis2Placement3D;

 WHERE

  WR22 : SweptArea.ProfileType = IfcProfileTypeEnum.Area;
END_ENTITY;

 EXPRESS-G diagram