The IfcIndexedTextureMap provides the mapping of the 2-dimensional texture coordinates to the surface onto which it is mapped. It is used for mapping the texture to faces of tessellated face sets.
The IfcIndexedTextureMap defines an index into an indexed list of texture coordinates. The TexCoords are a two-dimensional list of texture coordinates provided by two parameter values. Subtypes of IfcIndexedTextureMap establish the index attribute corresponding to subtypes of IfcTessellatedFaceSet defining the corresponding index lists of vertices.
HISTORY New entity in IFC4.
|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.|
|2||MappedTo||IfcTessellatedFaceSet||Reference to the IfcTessellatedFaceSet to which it applies the texture map.|
|3||TexCoords||IfcTextureVertexList||Indexable list of texture vertices.|
ENTITY IfcIndexedTextureMap ABSTRACT SUPERTYPE OF (ONEOF (IfcIndexedTriangleTextureMap)) SUBTYPE OF (IfcTextureCoordinate); MappedTo : IfcTessellatedFaceSet; TexCoords : IfcTextureVertexList; END_ENTITY;