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124 lines
3.4 KiB
C++
124 lines
3.4 KiB
C++
// Created on: 1991-02-26
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// Created by: Isabelle GRIGNON
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Extrema_PCFOfEPCOfExtPC_HeaderFile
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#define _Extrema_PCFOfEPCOfExtPC_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <gp_Pnt.hxx>
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#include <TColStd_SequenceOfReal.hxx>
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#include <TColStd_SequenceOfInteger.hxx>
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#include <Extrema_SequenceOfPOnCurv.hxx>
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#include <Standard_Integer.hxx>
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#include <math_FunctionWithDerivative.hxx>
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class Standard_OutOfRange;
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class Standard_TypeMismatch;
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class Adaptor3d_Curve;
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class Extrema_CurveTool;
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class Extrema_POnCurv;
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class gp_Pnt;
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class gp_Vec;
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class Extrema_PCFOfEPCOfExtPC : public math_FunctionWithDerivative
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{
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public:
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DEFINE_STANDARD_ALLOC
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Standard_EXPORT Extrema_PCFOfEPCOfExtPC();
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Standard_EXPORT Extrema_PCFOfEPCOfExtPC(const gp_Pnt& P, const Adaptor3d_Curve& C);
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//! sets the field mycurve of the function.
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Standard_EXPORT void Initialize (const Adaptor3d_Curve& C);
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//! sets the field P of the function.
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Standard_EXPORT void SetPoint (const gp_Pnt& P);
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//! Calculation of F(U).
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Standard_EXPORT Standard_Boolean Value (const Standard_Real U, Standard_Real& F) Standard_OVERRIDE;
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//! Calculation of F'(U).
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Standard_EXPORT Standard_Boolean Derivative (const Standard_Real U, Standard_Real& DF) Standard_OVERRIDE;
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//! Calculation of F(U) and F'(U).
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Standard_EXPORT Standard_Boolean Values (const Standard_Real U, Standard_Real& F, Standard_Real& DF) Standard_OVERRIDE;
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//! Save the found extremum.
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Standard_EXPORT virtual Standard_Integer GetStateNumber() Standard_OVERRIDE;
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//! Return the number of found extrema.
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Standard_EXPORT Standard_Integer NbExt() const;
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//! Returns the Nth distance.
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Standard_EXPORT Standard_Real SquareDistance (const Standard_Integer N) const;
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//! Shows if the Nth distance is a minimum.
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Standard_EXPORT Standard_Boolean IsMin (const Standard_Integer N) const;
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//! Returns the Nth extremum.
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Standard_EXPORT const Extrema_POnCurv& Point (const Standard_Integer N) const;
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//! Determines boundaries of subinterval for find of root.
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Standard_EXPORT void SubIntervalInitialize (const Standard_Real theUfirst, const Standard_Real theUlast);
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//! Computes a Tol value. If 1st derivative of curve
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//! |D1|<Tol, it is considered D1=0.
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Standard_EXPORT Standard_Real SearchOfTolerance();
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protected:
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private:
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gp_Pnt myP;
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Standard_Address myC;
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Standard_Real myU;
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gp_Pnt myPc;
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Standard_Real myD1f;
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TColStd_SequenceOfReal mySqDist;
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TColStd_SequenceOfInteger myIsMin;
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Extrema_SequenceOfPOnCurv myPoint;
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Standard_Boolean myPinit;
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Standard_Boolean myCinit;
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Standard_Boolean myD1Init;
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Standard_Real myTol;
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Standard_Integer myMaxDerivOrder;
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Standard_Real myUinfium;
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Standard_Real myUsupremum;
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};
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#endif // _Extrema_PCFOfEPCOfExtPC_HeaderFile
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