8.12.3.3 IfcColourRgbList
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
-
- IfcColourRgbList
- IfcColourSpecification
- IfcCurveStyleFont
- IfcCurveStyleFontAndScaling
- IfcCurveStyleFontPattern
- IfcIndexedColourMap
- IfcPreDefinedItem
- IfcSurfaceStyleLighting
- IfcSurfaceStyleRefraction
- IfcSurfaceStyleShading
- IfcSurfaceStyleWithTextures
- IfcSurfaceTexture
- IfcTextStyleForDefinedFont
- IfcTextStyleTextModel
- IfcTextureCoordinate
- IfcTextureVertex
- IfcTextureVertexList
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. |
8.12.3.3.4 Examples
8.12.3.3.5 Formal representation
ENTITY IfcColourRgbList
SUBTYPE OF (IfcPresentationItem);
ColourList : LIST [1:?] OF LIST [3:3] OF IfcNormalisedRatioMeasure;
END_ENTITY;