IfcTextureCoordinateIndicesWithVoids

Semantic definitions at the entity

Entity 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

HISTORY New entity in IFC4.3.0.0

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
3	InnerTexCoordIndices	IfcPositiveInteger	L[1:?] L[3:?]		X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	G
IfcTextureCoordinateIndices
1	TexCoordIndex	IfcPositiveInteger	L[3:?]	List of index pointers into the IfcTextureVertexList referenced by the inherited attribute TexCoords.	X
2	TexCoordsOf	IfcIndexedPolygonalFace		The IndexedPolygonalFace for which the texture coordinates are provided.	X
	ToTexMap	IfcIndexedPolygonalTextureMap @TexCoordIndices			X
IfcTextureCoordinateIndicesWithVoids
3	InnerTexCoordIndices	IfcPositiveInteger	L[1:?] L[3:?]		X

Formal representations

XML Specification

 <xs:element name="IfcTextureCoordinateIndicesWithVoids" type="ifc:IfcTextureCoordinateIndicesWithVoids" substitutionGroup="ifc:IfcTextureCoordinateIndices" nillable="true"/>

 <xs:complexType name="IfcTextureCoordinateIndicesWithVoids">

  <xs:complexContent>

   <xs:extension base="ifc:IfcTextureCoordinateIndices">

    <xs:attribute name="InnerTexCoordIndices" use="optional">

     <xs:simpleType>

      <xs:restriction>

       <xs:simpleType>

        <xs:list itemType="ifc:IfcPositiveInteger"/>

       </xs:simpleType>

       <xs:minLength value="3"/>

      </xs:restriction>

     </xs:simpleType>

    </xs:attribute>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcTextureCoordinateIndicesWithVoids

 SUBTYPE OF (IfcTextureCoordinateIndices);

  InnerTexCoordIndices : LIST [1:?] OF LIST [3:?] OF UNIQUE IfcPositiveInteger;

END_ENTITY;

 EXPRESS-G diagram