IfcConnectedFaceSet

IfcConnectedFaceSet

注：定义根据ISO/CD 10303-42:1992

连通的面集是一组面，使得面域及其边界边和顶点是连接的。

注：实体改编自ISO 10303-42中定义的连接面集。

IFC1.0中增加的新实体

非正式提议：

●面域及其边界环的并集应呈弧形连接。

 

 

#	Attribute	Type	Cardinality	Description	C
IfcRepresentationItem
	LayerAssignment	IfcPresentationLayerAssignment @AssignedItems	S[0:1]	Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items.	X
	StyledByItem	IfcStyledItem @Item	S[0:1]	Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve.	X
IfcTopologicalRepresentationItem
IfcConnectedFaceSet
1	CfsFaces	IfcFace	S[1:?]	The set of faces arcwise connected along common edges or vertices.	X

 

EXPRESS Specification

ENTITY IfcConnectedFaceSet
 SUPERTYPE OF(ONEOF(IfcClosedShell, IfcOpenShell))
 SUBTYPE OF (IfcTopologicalRepresentationItem);
  CfsFaces : SET [1:?] OF IfcFace;
END_ENTITY;