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0001 // Created on: 1997-02-21
0002 // Created by: Laurent BOURESCHE
0003 // Copyright (c) 1997-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016 
0017 #ifndef _BRepBlend_SurfCurvConstRadInv_HeaderFile
0018 #define _BRepBlend_SurfCurvConstRadInv_HeaderFile
0019 
0020 #include <Adaptor3d_Surface.hxx>
0021 #include <Blend_SurfCurvFuncInv.hxx>
0022 #include <math_Vector.hxx>
0023 
0024 class math_Matrix;
0025 
0026 
0027 //! Function of reframing between a restriction surface of the
0028 //! surface and a curve.
0029 //! Class     used   to   compute  a    solution   of  the
0030 //! surfRstConstRad  problem  on a done restriction of the
0031 //! surface.
0032 //! The vector  <X> used in  Value, Values and Derivatives
0033 //! methods  has   to  be the   vector  of  the parametric
0034 //! coordinates  wguide, wcurv, wrst  where  wguide is the
0035 //! parameter on the guide line, wcurv is the parameter on
0036 //! the curve, wrst is the parameter on the restriction on
0037 //! the surface.
0038 class BRepBlend_SurfCurvConstRadInv  : public Blend_SurfCurvFuncInv
0039 {
0040 public:
0041 
0042   DEFINE_STANDARD_ALLOC
0043 
0044   
0045   Standard_EXPORT BRepBlend_SurfCurvConstRadInv(const Handle(Adaptor3d_Surface)& S, const Handle(Adaptor3d_Curve)& C, const Handle(Adaptor3d_Curve)& Cg);
0046   
0047   Standard_EXPORT void Set (const Standard_Real R, const Standard_Integer Choix);
0048   
0049   //! returns 3.
0050   Standard_EXPORT Standard_Integer NbEquations() const;
0051   
0052   //! computes the values <F> of the Functions for the
0053   //! variable <X>.
0054   //! Returns True if the computation was done successfully,
0055   //! False otherwise.
0056   Standard_EXPORT Standard_Boolean Value (const math_Vector& X, math_Vector& F);
0057   
0058   //! returns the values <D> of the derivatives for the
0059   //! variable <X>.
0060   //! Returns True if the computation was done successfully,
0061   //! False otherwise.
0062   Standard_EXPORT Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D);
0063   
0064   //! returns the values <F> of the functions and the derivatives
0065   //! <D> for the variable <X>.
0066   //! Returns True if the computation was done successfully,
0067   //! False otherwise.
0068   Standard_EXPORT Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D);
0069   
0070   //! Set the restriction on which a solution has to be found.
0071   Standard_EXPORT void Set (const Handle(Adaptor2d_Curve2d)& Rst);
0072   
0073   //! Returns in the vector Tolerance the parametric tolerance
0074   //! for each of the 3 variables;
0075   //! Tol is the tolerance used in 3d space.
0076   Standard_EXPORT void GetTolerance (math_Vector& Tolerance, const Standard_Real Tol) const;
0077   
0078   //! Returns in the vector InfBound the lowest values allowed
0079   //! for each of the 3 variables.
0080   //! Returns in the vector SupBound the greatest values allowed
0081   //! for each of the 3 variables.
0082   Standard_EXPORT void GetBounds (math_Vector& InfBound, math_Vector& SupBound) const;
0083   
0084   //! Returns Standard_True if Sol is a zero of the function.
0085   //! Tol is the tolerance used in 3d space.
0086   Standard_EXPORT Standard_Boolean IsSolution (const math_Vector& Sol, const Standard_Real Tol);
0087 
0088 
0089 
0090 
0091 protected:
0092 
0093 
0094 
0095 
0096 
0097 private:
0098 
0099 
0100 
0101   Handle(Adaptor3d_Surface) surf;
0102   Handle(Adaptor3d_Curve) curv;
0103   Handle(Adaptor3d_Curve) guide;
0104   Handle(Adaptor2d_Curve2d) rst;
0105   Standard_Real ray;
0106   Standard_Integer choix;
0107 
0108 
0109 };
0110 
0111 
0112 
0113 
0114 
0115 
0116 
0117 #endif // _BRepBlend_SurfCurvConstRadInv_HeaderFile