ENTITY IfcBSplineSurfaceWithKnots

(* SCHEMA IFC4; *)

ENTITY IfcBSplineSurfaceWithKnots
 SUPERTYPE OF (ONEOF
    (IfcRationalBSplineSurfaceWithKnots))
 SUBTYPE OF (IfcBSplineSurface);
	UMultiplicities : LIST [2:?] OF IfcInteger;
	VMultiplicities : LIST [2:?] OF IfcInteger;
	UKnots : LIST [2:?] OF IfcParameterValue;
	VKnots : LIST [2:?] OF IfcParameterValue;
	KnotSpec : IfcKnotType;
 DERIVE
	KnotVUpper : IfcInteger := SIZEOF(VKnots);
	KnotUUpper : IfcInteger := SIZEOF(UKnots);
 WHERE
	UDirectionConstraints : IfcConstraintsParamBSpline (
  SELF\IfcBSplineSurface.UDegree, KnotUUpper, 
  SELF\IfcBSplineSurface.UUpper, UMultiplicities, UKnots);
	VDirectionConstraints : IfcConstraintsParamBSpline (
  SELF\IfcBSplineSurface.VDegree, KnotVUpper, 
  SELF\IfcBSplineSurface.VUpper, VMultiplicities, VKnots);
	CorrespondingULists : SIZEOF(UMultiplicities) = KnotUUpper;
	CorrespondingVLists : SIZEOF(VMultiplicities) = KnotVUpper;
END_ENTITY;

Explicit Attributes

Entity IfcBSplineSurfaceWithKnots has the following local and inherited explicit attributes:
AttributeTypeDefined By
 UDegreeIfcInteger (INTEGER)IfcBSplineSurface
 VDegreeIfcInteger (INTEGER)IfcBSplineSurface
 ControlPointsListLIST OF LIST OF IfcCartesianPoint (ENTITY)IfcBSplineSurface
 SurfaceFormIfcBSplineSurfaceForm (ENUM)IfcBSplineSurface
 UClosedIfcLogical (LOGICAL)IfcBSplineSurface
 VClosedIfcLogical (LOGICAL)IfcBSplineSurface
 SelfIntersectIfcLogical (LOGICAL)IfcBSplineSurface
 UMultiplicitiesLIST OF IfcInteger (INTEGER)IfcBSplineSurfaceWithKnots
 VMultiplicitiesLIST OF IfcInteger (INTEGER)IfcBSplineSurfaceWithKnots
 UKnotsLIST OF IfcParameterValue (REAL)IfcBSplineSurfaceWithKnots
 VKnotsLIST OF IfcParameterValue (REAL)IfcBSplineSurfaceWithKnots
 KnotSpecIfcKnotType (ENUM)IfcBSplineSurfaceWithKnots

Derived Attributes

Entity IfcBSplineSurfaceWithKnots has the following local and inherited derived attributes:
AttributeTypeDefined By
 DimIfcDimensionCount (INTEGER)IfcSurface
 UUpperIfcInteger (INTEGER)IfcBSplineSurface
 VUpperIfcInteger (INTEGER)IfcBSplineSurface
 ControlPointsARRAY OF ARRAY OF IfcCartesianPoint (ENTITY)IfcBSplineSurface
 KnotVUpperIfcInteger (INTEGER)IfcBSplineSurfaceWithKnots
 KnotUUpperIfcInteger (INTEGER)IfcBSplineSurfaceWithKnots

Inverse Attributes

Entity IfcBSplineSurfaceWithKnots has the following local and inherited inverse attributes:
AttributeTypeDefined By
 LayerAssignmentSET OF IfcPresentationLayerAssignment (ENTITY)IfcRepresentationItem
 StyledByItemSET OF IfcStyledItem (ENTITY)IfcRepresentationItem

Supertypes

Entity IfcBSplineSurfaceWithKnots inherits from the following supertypes:
  IfcRepresentationItem
    IfcGeometricRepresentationItem
      IfcSurface
        IfcBoundedSurface
          IfcBSplineSurface

Subtypes

Entity IfcBSplineSurfaceWithKnots has the following subtypes:
    IfcRationalBSplineSurfaceWithKnots*
* - Immediate Subtypes

Referenced By

Entity IfcBSplineSurfaceWithKnots and its supertypes are referenced by the following definitions:
DefinitionTypeReferenced Entity
 IfcAxis1Placement ENTITY IfcRepresentationItem
 IfcAxis1Placement ENTITY IfcGeometricRepresentationItem
 IfcBaseAxis FUNCTION IfcGeometricRepresentationItem
 IfcBaseAxis FUNCTION IfcRepresentationItem
 IfcBoundedSurface ENTITY IfcBSplineSurface
 IfcBSplineSurface ENTITY IfcBSplineSurfaceWithKnots
 IfcBSplineSurfaceWithKnots ENTITY IfcBSplineSurface
 IfcBuild2Axes FUNCTION IfcGeometricRepresentationItem
 IfcBuild2Axes FUNCTION IfcRepresentationItem
 IfcBuildAxes FUNCTION IfcGeometricRepresentationItem
 IfcBuildAxes FUNCTION IfcRepresentationItem
 IfcCompositeCurveOnSurface ENTITY IfcSurface
 IfcConvertDirectionInto2D FUNCTION IfcRepresentationItem
 IfcConvertDirectionInto2D FUNCTION IfcGeometricRepresentationItem
 IfcCrossProduct FUNCTION IfcGeometricRepresentationItem
 IfcCrossProduct FUNCTION IfcRepresentationItem
 IfcCurveBoundedSurface ENTITY IfcSurface
 IfcExtrudedAreaSolid ENTITY IfcRepresentationItem
 IfcExtrudedAreaSolid ENTITY IfcGeometricRepresentationItem
 IfcFaceSurface ENTITY IfcSurface
 IfcFirstProjAxis FUNCTION IfcGeometricRepresentationItem
 IfcFirstProjAxis FUNCTION IfcRepresentationItem
 IfcGeometricRepresentationItem ENTITY IfcSurface
 IfcGeometricSetSelect SELECT IfcSurface
 IfcGetBasisSurface FUNCTION IfcSurface
 IfcHalfSpaceSolid ENTITY IfcSurface
 IfcLayeredItem SELECT IfcRepresentationItem
 IfcMirroredProfileDef ENTITY IfcGeometricRepresentationItem
 IfcMirroredProfileDef ENTITY IfcRepresentationItem
 IfcNormalise FUNCTION IfcRepresentationItem
 IfcNormalise FUNCTION IfcGeometricRepresentationItem
 IfcOrthogonalComplement FUNCTION IfcRepresentationItem
 IfcOrthogonalComplement FUNCTION IfcGeometricRepresentationItem
 IfcPcurve ENTITY IfcSurface
 IfcPointOnSurface ENTITY IfcSurface
 IfcRationalBSplineSurfaceWithKnots ENTITY IfcBSplineSurface
 IfcRectangularTrimmedSurface ENTITY IfcSurface
 IfcRepresentation ENTITY IfcRepresentationItem
 IfcRepresentationItem ENTITY IfcGeometricRepresentationItem
 IfcRevolvedAreaSolid ENTITY IfcRepresentationItem
 IfcRevolvedAreaSolid ENTITY IfcGeometricRepresentationItem
 IfcScalarTimesVector FUNCTION IfcRepresentationItem
 IfcScalarTimesVector FUNCTION IfcGeometricRepresentationItem
 IfcSecondProjAxis FUNCTION IfcGeometricRepresentationItem
 IfcSecondProjAxis FUNCTION IfcRepresentationItem
 IfcShapeRepresentationTypes FUNCTION IfcRepresentationItem
 IfcShapeRepresentationTypes FUNCTION IfcSurface
 IfcStyledItem ENTITY IfcRepresentationItem
 IfcSurface ENTITY IfcBoundedSurface
 IfcSurfaceCurveSweptAreaSolid ENTITY IfcSurface
 IfcSurfaceOfLinearExtrusion ENTITY IfcRepresentationItem
 IfcSurfaceOfLinearExtrusion ENTITY IfcGeometricRepresentationItem
 IfcSurfaceOfRevolution ENTITY IfcRepresentationItem
 IfcSurfaceOfRevolution ENTITY IfcGeometricRepresentationItem
 IfcSurfaceOrFaceSurface SELECT IfcSurface
 IfcSurfaceWeightsPositive FUNCTION IfcBSplineSurface
 IfcTopologyRepresentationTypes FUNCTION IfcRepresentationItem
 IfcVectorDifference FUNCTION IfcGeometricRepresentationItem
 IfcVectorDifference FUNCTION IfcRepresentationItem
 IfcVectorSum FUNCTION IfcRepresentationItem
 IfcVectorSum FUNCTION IfcGeometricRepresentationItem


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2016-06-01T11:21:40-04:00