8.12.3.3 IfcColourRgbList

RV ⓘ

AbV ⓘ

8.12.3.3.1 Semantic definition

The IfcColourRgbList defines an ordered collection of RGB colour values. Each colour value is a fixed list of three colour components (red, green, blue). The attribute ColourList is a two-dimensional list, where:

first dimension is an unbounded list representing each colour value;
second dimension is a fixed list of three list members, where [1] is the red component, [2] the green component, and [3] the blue component.

8.12.3.3.2 Entity inheritance

- IfcPresentationItem

8.12.3.3.3 Attributes

#	Attribute	Type	Description
IfcColourRgbList (1)
1	ColourList	LIST [1:?] OF LIST [3:3] OF IfcNormalisedRatioMeasure	List of colours defined by the red, green, blue components. All values are provided as a ratio of 0.0 ≤ value ≤ 1.0. When using 8bit for each colour channel, a value of 0.0 equals 0, a value of 1.0 equals 255, and values in between are interpolated.

Table A

8.12.3.3.4 Formal representation

ENTITY IfcColourRgbList
SUBTYPE OF (IfcPresentationItem);
ColourList : LIST [1:?] OF LIST [3:3] OF IfcNormalisedRatioMeasure;
END_ENTITY;