109 lines
4.0 KiB
C++
109 lines
4.0 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_ECC2d_HeaderFile
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#define _Extrema_ECC2d_HeaderFile
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#include "Standard.hxx"
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#include "Standard_DefineAlloc.hxx"
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#include "math_Vector.hxx"
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#include "TColStd_SequenceOfReal.hxx"
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class Adaptor2d_Curve2d;
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class Extrema_Curve2dTool;
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class Extrema_POnCurv2d;
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class gp_Pnt2d;
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class gp_Vec2d;
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class Extrema_ECC2d
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Calculates all the distances as above
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//! between Uinf and Usup for C1 and between Vinf and Vsup
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//! for C2.
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Standard_EXPORT Extrema_ECC2d();
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//! It calculates all the distances.
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//! The function F(u,v)=distance(C1(u),C2(v)) has an
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//! extremum when gradient(f)=0. The algorithm uses
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//! Evtushenko's global optimization solver.
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Standard_EXPORT Extrema_ECC2d(const Adaptor2d_Curve2d& C1, const Adaptor2d_Curve2d& C2);
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//! Calculates all the distances as above
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//! between Uinf and Usup for C1 and between Vinf and Vsup
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//! for C2.
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Standard_EXPORT Extrema_ECC2d(const Adaptor2d_Curve2d& C1,
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const Adaptor2d_Curve2d& C2,
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const Standard_Real Uinf,
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const Standard_Real Usup,
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const Standard_Real Vinf,
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const Standard_Real Vsup);
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//! Set params in case of empty constructor is usage.
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Standard_EXPORT void SetParams(const Adaptor2d_Curve2d& C1,
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const Adaptor2d_Curve2d& C2,
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const Standard_Real Uinf,
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const Standard_Real Usup,
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const Standard_Real Vinf,
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const Standard_Real Vsup);
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Standard_EXPORT void SetTolerance(const Standard_Real Tol);
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//! Set flag for single extrema computation. Works on parametric solver only.
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Standard_EXPORT void SetSingleSolutionFlag(const Standard_Boolean theSingleSolutionFlag);
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//! Get flag for single extrema computation. Works on parametric solver only.
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Standard_EXPORT Standard_Boolean GetSingleSolutionFlag() const;
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//! Performs calculations.
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Standard_EXPORT void Perform();
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//! Returns True if the distances are found.
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Standard_EXPORT Standard_Boolean IsDone() const;
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//! Returns state of myParallel flag.
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Standard_EXPORT Standard_Boolean IsParallel() const;
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//! Returns the number of extremum distances.
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Standard_EXPORT Standard_Integer NbExt() const;
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//! Returns the value of the Nth square extremum distance.
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Standard_EXPORT Standard_Real SquareDistance(const Standard_Integer N = 1) const;
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//! Returns the points of the Nth extremum distance.
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//! P1 is on the first curve, P2 on the second one.
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Standard_EXPORT void Points(const Standard_Integer N,
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Extrema_POnCurv2d& P1,
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Extrema_POnCurv2d& P2) const;
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protected:
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private:
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Standard_Boolean myIsFindSingleSolution; // Default value is false.
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Standard_Boolean myParallel;
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Standard_Real myCurveMinTol;
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math_Vector myLowBorder;
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math_Vector myUppBorder;
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TColStd_SequenceOfReal myPoints1;
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TColStd_SequenceOfReal myPoints2;
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Standard_Address myC[2];
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Standard_Boolean myDone;
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};
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#endif // _Extrema_ECC2d_HeaderFile
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