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-- File: PLib_Base.cdl
-- Created: Wed Oct 22 10:33:35 1997
-- Author: Philippe MANGIN / Sergey SOKOLOV
-- <ssv@velox.nnov.matra-dtv.fr>
---Copyright: Matra Datavision 1997
deferred class Base from PLib inherits TShared from MMgt
---Purpose: To work with different polynomial's Bases
uses
Array1OfReal from TColStd
is
ToCoefficients (me ; Dimension, Degree : Integer;
CoeffinBase : Array1OfReal from TColStd ;
Coefficients : out Array1OfReal from TColStd)
---Purpose:
-- Convert the polynomial P(t) in the canonical base.
is deferred;
D0 (me : mutable; U : Real;
BasisValue : out Array1OfReal from TColStd)
---Purpose: Compute the values of the basis functions in u
--
is deferred;
D1 (me : mutable; U : Real;
BasisValue : out Array1OfReal from TColStd;
BasisD1 : out Array1OfReal from TColStd)
---Purpose: Compute the values and the derivatives values of
-- the basis functions in u
is deferred;
D2 (me : mutable; U : Real;
BasisValue : out Array1OfReal from TColStd;
BasisD1 : out Array1OfReal from TColStd;
BasisD2 : out Array1OfReal from TColStd)
---Purpose: Compute the values and the derivatives values of
-- the basis functions in u
is deferred;
D3 (me : mutable; U : Real;
BasisValue : out Array1OfReal from TColStd;
BasisD1 : out Array1OfReal from TColStd;
BasisD2 : out Array1OfReal from TColStd;
BasisD3 : out Array1OfReal from TColStd)
---Purpose: Compute the values and the derivatives values of
-- the basis functions in u
is deferred;
WorkDegree (me) returns Integer
--- Purpose: returns WorkDegree
is deferred;
ReduceDegree ( me ; Dimension , MaxDegree : Integer ; Tol : Real ;
BaseCoeff : in out Real;
NewDegree : out Integer ;
MaxError : out Real)
---Purpose:
-- Compute NewDegree <= MaxDegree so that MaxError is lower
-- than Tol.
-- MaxError can be greater than Tol if it is not possible
-- to find a NewDegree <= MaxDegree.
-- In this case NewDegree = MaxDegree
--
is deferred;
end Base;
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