IFC 4.3.0.1 (IFC4X3) development

6.2.2.4 IfcFlowDirectionEnum

6.2.2.4.1 Semantic definition

This enumeration defines the flow direction at a distribution port.

  • For pipe-based ports, the direction is the physical flow direction.
  • For duct-based ports, the direction is the physical flow direction.

6.2.2.4.2 Type values

Type Description
SINK

A flow sink, where a substance flows into the connection.

SOURCE

A flow source, where a substance flows out of the connection.

SOURCEANDSINK

Both a source and sink, where a substance flows both into and out of the connection simultaneously.

NOTDEFINED

Undefined flow direction.

Table 6.2.2.4.A

6.2.2.4.3 Formal representation

TYPE IfcFlowDirectionEnum = ENUMERATION OF
	(SINK
	,SOURCE
	,SOURCEANDSINK
	,NOTDEFINED);
END_TYPE;

6.2.2.4.4 References

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