IfcConnectedFaceSet

IfcConnectedFaceSet

Definition from ISO/CD 10303-42:1992: A connected_face_set (IfcConnectedFaceSet) is a set of faces (IfcFace) such that the domain of faces together with their bounding edges and vertices is connected.

NOTE Corresponding STEP entity: connected_face_set, only the subtype closed_shell is included as IfcClosedShell. Please refer to ISO/IS 10303-42:1994, p. 144 for the final definition of the formal standard.

HISTORY New class in IFC Release 1.0 ISSUE: See issue log for changes made in IFC Release 1.5.

Informal proposition:

The union of the domains of the faces and their bounding loops shall be arcwise connected.

EXPRESS specification:

ENTITY IfcConnectedFaceSet

SUPERTYPE OF

(ONEOF(IfcClosedShell, IfcOpenShell))

SUBTYPE OF (

IfcTopologicalRepresentationItem);

CfsFaces

:

SET [1:?] OF IfcFace;

END_ENTITY;

Attribute definitions:

CfsFaces

:

The set of faces arcwise connected along common edges or vertices.

References (3):

Name

Type

Referred through

Express-G

Entity

Supertype

Entity

Supertype

IfcTopologicalRepresentationItem

Entity

Subtype

Inheritance graph

ENTITY IfcConnectedFaceSet;

ENTITY IfcRepresentationItem;

ENTITY IfcTopologicalRepresentationItem;

ENTITY IfcConnectedFaceSet;

CfsFaces

:

SET [1:?] OF IfcFace;

END_ENTITY;