include/opencascade/Bisector_FunctionH.hxx

0001 // Created on: 1994-04-05
0002 // Created by: Yves FRICAUD
0003 // Copyright (c) 1994-1999 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 _Bisector_FunctionH_HeaderFile
0018 #define _Bisector_FunctionH_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <gp_Pnt2d.hxx>
0025 #include <gp_Vec2d.hxx>
0026 #include <math_FunctionWithDerivative.hxx>
0027 #include <Standard_Boolean.hxx>
0028 #include <Standard_Real.hxx>
0029 class Geom2d_Curve;
0030
0031
0032 //! H(v) = (T1  .P2(v) - P1) * ||T(v)||  -
0033 //! 2         2
0034 //! (T(v).P2(v) - P1) * ||T1||
0035 class Bisector_FunctionH  : public math_FunctionWithDerivative
0036 {
0037 public:
0038
0039   DEFINE_STANDARD_ALLOC
0040
0041
0042   Standard_EXPORT Bisector_FunctionH(const Handle(Geom2d_Curve)& C2, const gp_Pnt2d& P1, const gp_Vec2d& T1);
0043
0044   //! Computes the values of the Functions for the variable <X>.
0045   Standard_EXPORT Standard_Boolean Value (const Standard_Real X, Standard_Real& F);
0046
0047   Standard_EXPORT Standard_Boolean Derivative (const Standard_Real X, Standard_Real& D);
0048
0049   //! Returns the values of the functions and the derivatives
0050   //! for the variable <X>.
0051   Standard_EXPORT Standard_Boolean Values (const Standard_Real X, Standard_Real& F, Standard_Real& D);
0052
0053
0054
0055
0056 protected:
0057
0058
0059
0060
0061
0062 private:
0063
0064
0065
0066   Handle(Geom2d_Curve) curve2;
0067   gp_Pnt2d p1;
0068   gp_Vec2d t1;
0069
0070
0071 };
0072
0073
0074
0075
0076
0077
0078
0079 #endif // _Bisector_FunctionH_HeaderFile