IFC 4.3.0.1 (IFC4X3) development

5.4.2.15 IfcInternalOrExternalEnum

5.4.2.15.1 Semantic definition

This enumeration defines the different types of space boundaries in terms of either being inside the building or outside the building.

5.4.2.15.2 Type values

Type Description
EXTERNAL

The space boundary faces a physical or virtual element where there is an external space on the other side.

EXTERNAL_EARTH

The space boundary faces a physical or virtual element where there is earth (or terrain) on the other side.

EXTERNAL_FIRE

The space boundary faces a physical or virtual element where there is another building on the other side.

EXTERNAL_WATER

The space boundary faces a physical or virtual element where there is water (water component of terrain) on the other side.

INTERNAL

The space boundary faces a physical or virtual element where there is an internal space on the other side.

NOTDEFINED

No information available.

Table 5.4.2.15.A

5.4.2.15.3 Formal representation

TYPE IfcInternalOrExternalEnum = ENUMERATION OF
	(EXTERNAL
	,EXTERNAL_EARTH
	,EXTERNAL_FIRE
	,EXTERNAL_WATER
	,INTERNAL
	,NOTDEFINED);
END_TYPE;

5.4.2.15.4 References

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5.4.2.15.5 Changelog

  • item, EXTERNAL_EARTH
  • item, EXTERNAL_FIRE
  • item, EXTERNAL_WATER