SUPERTYPE OF(IfcRationalBSplineCurveWithKnots) SUBTYPE OF (IfcBSplineCurve); KnotMultiplicities : LIST [2:?] OF IfcInteger; Knots : LIST [2:?] OF IfcParameterValue; KnotSpec : IfcKnotType; DERIVE UpperIndexOnKnots : IfcInteger := SIZEOF(Knots); WHERE ConsistentBSpline : IfcConstraintsParam...
SameNumOfWeightsAndPoints : SIZEOF(WeightsData) = SIZEOF(SELF\IfcBSplineCurve.ControlPointsList); WeightsGreaterZero : IfcCurveWeightsPositive(SELF); END_ENTITY;
SUBTYPE OF (IfcBSplineCurveWithKnots); WeightsData : LIST [2:?] OF IfcReal; DERIVE Weights : ARRAY [0:UpperIndexOnControlPoints] OF IfcReal := IfcListToArray(WeightsData,0,SELF\IfcBSplineCurve.UpperIndexOnControlPoints); WHERE SameNumOfWeightsAndPoints : SIZEOF(WeightsData) = SIZEOF(SELF...
Choose "view basis functions" to show the B-spline basis functions of a given knot vector instead of the B-spline curve. External Links Permanent Citation Cite this as Yu-Sung Chang(2007), "B-Spline Curve with Knots" Wolfram Demonstrations Project. demonstrations.wolfram.com/BSplineCurveWithKn...
B-spline curve B yangtiQO qUxlanB样条曲线(BsPline curve)用B样条函数构造的曲线。B样条函数在19世纪初首先由N.肠bachevsky提出。1946年,1.J.段hoenbe唱用B样条函数光滑统计数据,并提出B样条近似理论。1972年,deB刀r,M.Cox,L.Mal侣field等人发现了B样条函数的递归关系,1974年,C心rdon和Ri~-feld用B样条...
com.aspose.cad.fileformats.ifc.ifc4.entities.IfcBSplineCurveWithKnots All Implemented Interfaces: IIfcEntity, com.aspose.cad_internal.fileformats.ifc.IIfcBezierCurve, com.aspose.cad_internal.fileformats.ifc.IIfcBoundedCurve, com.aspose.cad_internal.fileformats.ifc.IIfcBSplineCurve, com.as...