8.12.3.43 IfcTextureCoordinateIndicesWithVoids

8.12.3.43.1 Semantic definition

The IfcTextureCoordinateIndicesWithVoids is a subtype of IfcTextureCoordinateIndices to be used to provide texture coordinates to polygonal faces with inner loops. The two dimensional list of TexCoordIndex holds the indices into the IfcTextureVertexList that correspond to the list of CoordIndex at TexCoordsOf where:

• the first dimension corresponds to the list position of the inner loops at IfcIndexedPolygonalFaceWithVoids referenced by TexCoordsOf
• the second dimension corresponds to the list position of the vertices at the n^th inner loop at IfcIndexedPolygonalFaceWithVoids

8.12.3.43.2 Entity inheritance

1. • IfcTextureCoordinateIndices
2. • IfcTextureCoordinateIndicesWithVoids

8.12.3.43.3 Attributes

#	Attribute	Type	Description
IfcTextureCoordinateIndices (3)
1	TexCoordIndex	LIST [3:?] OF IfcPositiveInteger	List of index pointers into the IfcTextureVertexList referenced by the inherited attribute TexCoords.
2	TexCoordsOf	IfcIndexedPolygonalFace	The IndexedPolygonalFace for which the texture coordinates are provided.
	ToTexMap	IfcIndexedPolygonalTextureMap FOR TexCoordIndices	No description available.
Click to show 3 hidden inherited attributes Click to hide 3 inherited attributes
IfcTextureCoordinateIndicesWithVoids (1)
3	InnerTexCoordIndices	LIST [1:?] OF LIST [3:?] OF UNIQUE IfcPositiveInteger	No description available.

8.12.3.43.4 Formal representation

ENTITY IfcTextureCoordinateIndicesWithVoids
 SUBTYPE OF (IfcTextureCoordinateIndices);
	InnerTexCoordIndices : LIST [1:?] OF LIST [3:?] OF UNIQUE IfcPositiveInteger;
END_ENTITY;

8.12.3.43.5 References

• IfcTextureCoordinateIndices