IFC 4.3.x development

8.12.3.4 IfcColourSpecification

8.12.3.4.1 Semantic definitions at the entity

NOTE  Definition according to ISO/CD 10303-46:1992
The colour specification entity contains a direct colour definition. Colour component values refer directly to a specific colour space.

NOTE  Corresponding ISO 10303 name: colour_specification. It has been made into an abstract entity in IFC. Please refer to ISO/IS 10303-46:1994, p. 138 for the final definition of the formal standard.

HISTORY  New entity in IFC2x2.

8.12.3.4.1 Attributes

#Attribute Type Description
IfcPresentationItem
IfcColourSpecification
1Name OPTIONAL IfcLabelOptional name given to a particular colour specification in addition to the colour components (like the RGB values).

> EXAMPLE  Names of a industry colour classification, such as RAL.

> IFC2x3 CHANGE  Attribute added.

8.12.3.4.2 Entity inheritance

dot_inheritance IfcColourRgb IfcColourRgb IfcColourSpecification IfcColourSpecification IfcColourRgb->IfcColourSpecification IfcPresentationItem IfcPresentationItem IfcColourSpecification->IfcPresentationItem IfcPresentationItem_children 16 more... IfcPresentationItem_children->IfcPresentationItem

8.12.3.4.3 Formal representations

ENTITY IfcColourSpecification
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcColourRgb))
 SUBTYPE OF (IfcPresentationItem);
	Name : OPTIONAL IfcLabel;
END_ENTITY;