include/opencascade/Adaptor3d_InterFunc.hxx

0001 // Created on: 1998-02-18
0002 // Created by: Jeanine PANCIATICI
0003 // Copyright (c) 1998-1999 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 _Adaptor3d_InterFunc_HeaderFile
0018 #define _Adaptor3d_InterFunc_HeaderFile
0019
0020 #include <math_FunctionWithDerivative.hxx>
0021
0022 class Adaptor2d_Curve2d;
0023
0024 //! Used to find the points U(t) = U0 or V(t) = V0 in
0025 //! order to determine the  Cn discontinuities of  an
0026 //! Adpator_CurveOnSurface  relatively  to    the
0027 //! discontinuities of the surface. Used to
0028 //! find the roots of the functions
0029 class Adaptor3d_InterFunc  : public math_FunctionWithDerivative
0030 {
0031 public:
0032
0033   DEFINE_STANDARD_ALLOC
0034
0035
0036   //! build the function  U(t)=FixVal   if Fix =1 or
0037   //! V(t)=FixVal if Fix=2
0038   Standard_EXPORT Adaptor3d_InterFunc(const Handle(Adaptor2d_Curve2d)& C, const Standard_Real FixVal, const Standard_Integer Fix);
0039
0040   //! computes the value <F>of the function for the variable <X>.
0041   //! Returns True if the calculation were successfully done,
0042   //! False otherwise.
0043   Standard_EXPORT Standard_Boolean Value (const Standard_Real X, Standard_Real& F);
0044
0045   //! computes the derivative <D> of the function
0046   //! for the variable <X>.
0047   //! Returns True if the calculation were successfully done,
0048   //! False otherwise.
0049   Standard_EXPORT Standard_Boolean Derivative (const Standard_Real X, Standard_Real& D);
0050
0051   //! computes the value <F> and the derivative <D> of the
0052   //! function for the variable <X>.
0053   //! Returns True if the calculation were successfully done,
0054   //! False otherwise.
0055   Standard_EXPORT Standard_Boolean Values (const Standard_Real X, Standard_Real& F, Standard_Real& D);
0056
0057 private:
0058
0059   Handle(Adaptor2d_Curve2d) myCurve2d;
0060   Standard_Real myFixVal;
0061   Standard_Integer myFix;
0062
0063 };
0064
0065 #endif // _Adaptor3d_InterFunc_HeaderFile