include/opencascade/Geom2dLProp_NumericCurInf2d.hxx

0001 // Created on: 1994-09-02
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 _Geom2dLProp_NumericCurInf2d_HeaderFile
0018 #define _Geom2dLProp_NumericCurInf2d_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 class Geom2d_Curve;
0025 class LProp_CurAndInf;
0026
0027 //! Computes the locals extremas of curvature and the
0028 //! inflections of a bounded curve in 2d.
0029 class Geom2dLProp_NumericCurInf2d
0030 {
0031 public:
0032   DEFINE_STANDARD_ALLOC
0033
0034   Standard_EXPORT Geom2dLProp_NumericCurInf2d();
0035
0036   //! Computes the locals extremas of curvature.
0037   Standard_EXPORT void PerformCurExt(const Handle(Geom2d_Curve)& C, LProp_CurAndInf& Result);
0038
0039   //! Computes the inflections.
0040   Standard_EXPORT void PerformInf(const Handle(Geom2d_Curve)& C, LProp_CurAndInf& Result);
0041
0042   //! Computes the locals extremas of curvature.
0043   //! in the interval of parameters [UMin,UMax].
0044   Standard_EXPORT void PerformCurExt(const Handle(Geom2d_Curve)& C,
0045                                      const Standard_Real         UMin,
0046                                      const Standard_Real         UMax,
0047                                      LProp_CurAndInf&            Result);
0048
0049   //! Computes the inflections in the interval of
0050   //! parameters [UMin,UMax].
0051   Standard_EXPORT void PerformInf(const Handle(Geom2d_Curve)& C,
0052                                   const Standard_Real         UMin,
0053                                   const Standard_Real         UMax,
0054                                   LProp_CurAndInf&            Result);
0055
0056   //! True if the solutions are found.
0057   Standard_EXPORT Standard_Boolean IsDone() const;
0058
0059 protected:
0060 private:
0061   Standard_Boolean isDone;
0062 };
0063
0064 #endif // _Geom2dLProp_NumericCurInf2d_HeaderFile