ENTITY IfcTriangulatedFaceSet

(* SCHEMA IFC4; *)
-- ==============================
-- LEGACY ADD ATTRIBUTE: IfcTriangulatedFaceSet.NormalIndex
-- 
-- IfcTriangulatedFaceSet was introduced in IFC4 but in addendum one,
-- the NormalIndex attribute was replaced with PhIndex, which has a
-- completely different structure and meaning.  Add back NormalIndex
-- so the entity has both.  On read, the IFCBIM library will populate
-- the correct one based on the structure of the data.  On write, only
-- PhIndex will be written.

ENTITY IfcTriangulatedFaceSet
 SUPERTYPE OF (ONEOF
	(IfcTriangulatedIrregularNetwork))
 SUBTYPE OF (IfcTessellatedFaceSet);
	Normals : OPTIONAL LIST [1:?] OF LIST [3:3] OF IfcParameterValue;
	Closed : OPTIONAL IfcBoolean;
	CoordIndex : LIST [1:?] OF LIST [3:3] OF IfcPositiveInteger;

	-- IFCBIM Library Specific
	-- Current definition.  Replaced NormalIndex in IFC4 add1
	PnIndex : OPTIONAL LIST [1:?] OF IfcPositiveInteger;
	
	-- Original IFC4 attribute.  Here as an alternate for reading
	-- old data.  Will be populated if the data contains a list of
	-- list, but only PhIndex will be written.
	NormalIndex : OPTIONAL LIST [1:?] OF LIST [3:3] OF INTEGER;
	
 DERIVE
	 NumberOfTriangles : IfcInteger := SIZEOF(CoordIndex);
END_ENTITY;

Explicit Attributes

Entity IfcTriangulatedFaceSet has the following local and inherited explicit attributes:
AttributeTypeDefined By
 CoordinatesIfcCartesianPointList3D (ENTITY)IfcTessellatedFaceSet
 NormalsLIST OF LIST OF IfcParameterValue (REAL)IfcTriangulatedFaceSet
 ClosedIfcBoolean (BOOLEAN)IfcTriangulatedFaceSet
 CoordIndexLIST OF LIST OF IfcPositiveInteger (INTEGER)IfcTriangulatedFaceSet
 PnIndexLIST OF IfcPositiveInteger (INTEGER)IfcTriangulatedFaceSet
 NormalIndexLIST OF LIST OF INTEGERIfcTriangulatedFaceSet

Derived Attributes

Entity IfcTriangulatedFaceSet has the following local and inherited derived attributes:
AttributeTypeDefined By
 DimIfcDimensionCount (INTEGER)IfcTessellatedFaceSet
 NumberOfTrianglesIfcInteger (INTEGER)IfcTriangulatedFaceSet

Inverse Attributes

Entity IfcTriangulatedFaceSet has the following local and inherited inverse attributes:
AttributeTypeDefined By
 LayerAssignmentSET OF IfcPresentationLayerAssignment (ENTITY)IfcRepresentationItem
 StyledByItemSET OF IfcStyledItem (ENTITY)IfcRepresentationItem
 HasColoursSET OF IfcIndexedColourMap (ENTITY)IfcTessellatedFaceSet
 HasTexturesSET OF IfcIndexedTextureMap (ENTITY)IfcTessellatedFaceSet

Supertypes

Entity IfcTriangulatedFaceSet inherits from the following supertypes:
  IfcRepresentationItem
    IfcGeometricRepresentationItem
      IfcTessellatedItem
        IfcTessellatedFaceSet

Subtypes

Entity IfcTriangulatedFaceSet has the following subtypes:
    IfcTriangulatedIrregularNetwork*
* - Immediate Subtypes

Referenced By

Entity IfcTriangulatedFaceSet and its supertypes are referenced by the following definitions:
DefinitionTypeReferenced Entity
 IfcAxis1Placement ENTITY IfcGeometricRepresentationItem
 IfcAxis1Placement ENTITY IfcRepresentationItem
 IfcBaseAxis FUNCTION IfcGeometricRepresentationItem
 IfcBaseAxis FUNCTION IfcRepresentationItem
 IfcBooleanOperand SELECT IfcTessellatedFaceSet
 IfcBuild2Axes FUNCTION IfcGeometricRepresentationItem
 IfcBuild2Axes FUNCTION IfcRepresentationItem
 IfcBuildAxes FUNCTION IfcRepresentationItem
 IfcBuildAxes FUNCTION IfcGeometricRepresentationItem
 IfcConvertDirectionInto2D FUNCTION IfcGeometricRepresentationItem
 IfcConvertDirectionInto2D FUNCTION IfcRepresentationItem
 IfcCrossProduct FUNCTION IfcRepresentationItem
 IfcCrossProduct FUNCTION IfcGeometricRepresentationItem
 IfcExtrudedAreaSolid ENTITY IfcGeometricRepresentationItem
 IfcExtrudedAreaSolid ENTITY IfcRepresentationItem
 IfcFirstProjAxis FUNCTION IfcGeometricRepresentationItem
 IfcFirstProjAxis FUNCTION IfcRepresentationItem
 IfcGeometricRepresentationItem ENTITY IfcTessellatedItem
 IfcIndexedColourMap ENTITY IfcTessellatedFaceSet
 IfcIndexedTextureMap ENTITY IfcTessellatedFaceSet
 IfcLayeredItem SELECT IfcRepresentationItem
 IfcMirroredProfileDef ENTITY IfcRepresentationItem
 IfcMirroredProfileDef ENTITY IfcGeometricRepresentationItem
 IfcNormalise FUNCTION IfcRepresentationItem
 IfcNormalise FUNCTION IfcGeometricRepresentationItem
 IfcOrthogonalComplement FUNCTION IfcRepresentationItem
 IfcOrthogonalComplement FUNCTION IfcGeometricRepresentationItem
 IfcRepresentation ENTITY IfcRepresentationItem
 IfcRepresentationItem ENTITY IfcGeometricRepresentationItem
 IfcRevolvedAreaSolid ENTITY IfcRepresentationItem
 IfcRevolvedAreaSolid ENTITY IfcGeometricRepresentationItem
 IfcScalarTimesVector FUNCTION IfcRepresentationItem
 IfcScalarTimesVector FUNCTION IfcGeometricRepresentationItem
 IfcSecondProjAxis FUNCTION IfcRepresentationItem
 IfcSecondProjAxis FUNCTION IfcGeometricRepresentationItem
 IfcShapeRepresentationTypes FUNCTION IfcRepresentationItem
 IfcStyledItem ENTITY IfcRepresentationItem
 IfcSurfaceOfLinearExtrusion ENTITY IfcGeometricRepresentationItem
 IfcSurfaceOfLinearExtrusion ENTITY IfcRepresentationItem
 IfcSurfaceOfRevolution ENTITY IfcGeometricRepresentationItem
 IfcSurfaceOfRevolution ENTITY IfcRepresentationItem
 IfcTessellatedFaceSet ENTITY IfcTriangulatedFaceSet
 IfcTessellatedItem ENTITY IfcTessellatedFaceSet
 IfcTopologyRepresentationTypes FUNCTION IfcRepresentationItem
 IfcTriangulatedIrregularNetwork ENTITY IfcTriangulatedFaceSet
 IfcVectorDifference FUNCTION IfcRepresentationItem
 IfcVectorDifference FUNCTION IfcGeometricRepresentationItem
 IfcVectorSum FUNCTION IfcRepresentationItem
 IfcVectorSum FUNCTION IfcGeometricRepresentationItem


[Top Level Definitions] [Exit]

Generated by STEP Tools® EXPRESS to HTML Converter
2024-07-11T21:39:05-04:00