1 // Created on: 1991-04-03 2 // Created by: Remi GILET 3 // Copyright (c) 1991-1999 Matra Datavision 4 // Copyright (c) 1999-2014 OPEN CASCADE SAS 5 // 6 // This file is part of Open CASCADE Technology software library. 7 // 8 // This library is free software; you can redistribute it and/or modify it under 9 // the terms of the GNU Lesser General Public License version 2.1 as published 10 // by the Free Software Foundation, with special exception defined in the file 11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 12 // distribution for complete text of the license and disclaimer of any warranty. 13 // 14 // Alternatively, this file may be used under the terms of Open CASCADE 15 // commercial license or contractual agreement. 16 17 #ifndef _GccAna_LinPnt2dBisec_HeaderFile 18 #define _GccAna_LinPnt2dBisec_HeaderFile 19 20 #include <Standard.hxx> 21 #include <Standard_DefineAlloc.hxx> 22 #include <Standard_Handle.hxx> 23 24 #include <Standard_Boolean.hxx> 25 class GccInt_Bisec; 26 class Standard_ConstructionError; 27 class StdFail_NotDone; 28 class gp_Lin2d; 29 class gp_Pnt2d; 30 31 32 //! Describes functions for building bisecting curves between a 2D line and a point. 33 //! A bisecting curve between a line and a point is such a 34 //! curve that each of its points is at the same distance from 35 //! the circle and the point. It can be a parabola or a line, 36 //! depending on the relative position of the line and the 37 //! circle. There is always one unique solution. 38 //! A LinPnt2dBisec object provides a framework for: 39 //! - defining the construction of the bisecting curve, 40 //! - implementing the construction algorithm, and 41 //! - consulting the result. 42 class GccAna_LinPnt2dBisec 43 { 44 public: 45 46 DEFINE_STANDARD_ALLOC 47 48 49 //! Constructs a bisecting curve between the line Line1 and the point Point2. 50 Standard_EXPORT GccAna_LinPnt2dBisec(const gp_Lin2d& Line1, const gp_Pnt2d& Point2); 51 52 //! Returns True if the algorithm succeeded. 53 Standard_EXPORT Standard_Boolean IsDone() const; 54 55 //! Returns the number of solutions. 56 //! It raises NotDone if the construction algorithm didn't succeed. 57 Standard_EXPORT Handle(GccInt_Bisec) ThisSolution() const; 58 59 60 61 62 protected: 63 64 65 66 67 68 private: 69 70 71 72 Standard_Boolean WellDone; 73 Handle(GccInt_Bisec) bissol; 74 75 76 }; 77 78 79 80 81 82 83 84 #endif // _GccAna_LinPnt2dBisec_HeaderFile 85