8.12.3.40 IfcTextureCoordinate

ABSTRACT This definition may not be instantiated

8.12.3.40.1 Semantic definition

The IfcTextureCoordinate is an abstract supertype of the different kinds to apply texture coordinates to geometries. For vertex based geometries an explicit assignment of 2D texture vertices to the 3D geometry points is supported by the subtype IfcTextureMap, in addition there can be a procedural description of how texture coordinates shall be applied to geometric items. If no IfcTextureCoordinate is provided for the IfcSurfaceTexture, the default mapping shall be used.

8.12.3.40.2 Entity inheritance

8.12.3.40.3 Attributes

#	Attribute	Type	Description
IfcTextureCoordinate (1)
1	Maps	LIST [1:?] OF IfcSurfaceTexture	Reference to the one (or many in case of multi textures with identity transformation to geometric surfaces) subtype(s) of IfcSurfaceTexture that are mapped to a geometric surface by the texture coordinate transformation.

Table 8.12.3.40.A

8.12.3.40.4 Formal representation

ENTITY IfcTextureCoordinate
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcIndexedTextureMap
	,IfcTextureCoordinateGenerator
	,IfcTextureMap))
 SUBTYPE OF (IfcPresentationItem);
	Maps : LIST [1:?] OF IfcSurfaceTexture;
END_ENTITY;