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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_CircLin2dBisec_HeaderFile |
| 18 | #define _GccAna_CircLin2dBisec_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <Standard_Boolean.hxx> |
| 25 | #include <Standard_Integer.hxx> |
| 26 | #include <gp_Circ2d.hxx> |
| 27 | #include <gp_Lin2d.hxx> |
| 28 | class Standard_OutOfRange; |
| 29 | class StdFail_NotDone; |
| 30 | class gp_Circ2d; |
| 31 | class gp_Lin2d; |
| 32 | class GccInt_Bisec; |
| 33 | |
| 34 | |
| 35 | //! Describes functions for building bisecting curves between a 2D line and a 2D circle. |
| 36 | //! A bisecting curve between a circle and a line is a curve |
| 37 | //! such that each of its points is at the same distance from |
| 38 | //! the circle and the line. It can be a parabola or a line, |
| 39 | //! depending of the relative position of the line and the |
| 40 | //! circle. The algorithm computes all the elementary curves which are solutions. |
| 41 | //! A CircLin2dBisec object provides a framework for: |
| 42 | //! - defining the construction of the bisecting curves, |
| 43 | //! - implementing the construction algorithm, and |
| 44 | //! - consulting the result. |
| 45 | class GccAna_CircLin2dBisec |
| 46 | { |
| 47 | public: |
| 48 | |
| 49 | DEFINE_STANDARD_ALLOC |
| 50 | |
| 51 | |
| 52 | //! Constructs bisecting curves between the circle Circle and the line Line. |
| 53 | Standard_EXPORT GccAna_CircLin2dBisec(const gp_Circ2d& Circle, const gp_Lin2d& Line); |
| 54 | |
| 55 | //! Returns true (this construction algorithm never fails). |
| 56 | Standard_EXPORT Standard_Boolean IsDone() const; |
| 57 | |
| 58 | |
| 59 | //! Returns the number of curves, representing solutions computed by this algorithm. |
| 60 | Standard_EXPORT Standard_Integer NbSolutions() const; |
| 61 | |
| 62 | //! Returns the solution number Index and raises OutOfRange |
| 63 | //! exception if Index is greater than the number of solutions |
| 64 | //! Exceptions |
| 65 | //! Standard_OutOfRange if Index is less than zero or |
| 66 | //! greater than the number of solutions computed by this algorithm. |
| 67 | Standard_EXPORT Handle(GccInt_Bisec) ThisSolution (const Standard_Integer Index) const; |
| 68 | |
| 69 | |
| 70 | |
| 71 | |
| 72 | protected: |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 | |
| 78 | private: |
| 79 | |
| 80 | |
| 81 | |
| 82 | Standard_Boolean WellDone; |
| 83 | Standard_Integer NbrSol; |
| 84 | gp_Circ2d circle; |
| 85 | gp_Lin2d line; |
| 86 | |
| 87 | |
| 88 | }; |
| 89 | |
| 90 | |
| 91 | |
| 92 | |
| 93 | |
| 94 | |
| 95 | |
| 96 | #endif // _GccAna_CircLin2dBisec_HeaderFile |
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