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1 | // Created on: 1992-03-04 |
| 2 | // Created by: Laurent BUCHARD |
| 3 | // Copyright (c) 1992-1999 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 _IntCurve_PConic_HeaderFile |
| 18 | #define _IntCurve_PConic_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <gp_Ax22d.hxx> |
| 25 | #include <Standard_Real.hxx> |
| 26 | #include <Standard_Integer.hxx> |
| 27 | #include <GeomAbs_CurveType.hxx> |
| 28 | class gp_Elips2d; |
| 29 | class gp_Circ2d; |
| 30 | class gp_Parab2d; |
| 31 | class gp_Hypr2d; |
| 32 | class gp_Lin2d; |
| 33 | class gp_Ax22d; |
| 34 | |
| 35 | |
| 36 | //! This class represents a conic from gp as a |
| 37 | //! parametric curve ( in order to be used by the |
| 38 | //! class PConicTool from IntCurve). |
| 39 | class IntCurve_PConic |
| 40 | { |
| 41 | public: |
| 42 | |
| 43 | DEFINE_STANDARD_ALLOC |
| 44 | |
| 45 | |
| 46 | Standard_EXPORT IntCurve_PConic(const IntCurve_PConic& PC); |
| 47 | |
| 48 | Standard_EXPORT IntCurve_PConic(const gp_Elips2d& E); |
| 49 | |
| 50 | Standard_EXPORT IntCurve_PConic(const gp_Circ2d& C); |
| 51 | |
| 52 | Standard_EXPORT IntCurve_PConic(const gp_Parab2d& P); |
| 53 | |
| 54 | Standard_EXPORT IntCurve_PConic(const gp_Hypr2d& H); |
| 55 | |
| 56 | Standard_EXPORT IntCurve_PConic(const gp_Lin2d& L); |
| 57 | |
| 58 | //! EpsX is a internal tolerance used in math |
| 59 | //! algorithms, usually about 1e-10 |
| 60 | //! (See FunctionAllRoots for more details) |
| 61 | Standard_EXPORT void SetEpsX (const Standard_Real EpsDist); |
| 62 | |
| 63 | //! Accuracy is the number of samples used to |
| 64 | //! approximate the parametric curve on its domain. |
| 65 | Standard_EXPORT void SetAccuracy (const Standard_Integer Nb); |
| 66 | |
| 67 | Standard_Integer Accuracy() const; |
| 68 | |
| 69 | Standard_Real EpsX() const; |
| 70 | |
| 71 | //! The Conics are manipulated as objects which only |
| 72 | //! depend on three parameters : Axis and two Real from Standards. |
| 73 | //! Type Curve is used to select the correct Conic. |
| 74 | GeomAbs_CurveType TypeCurve() const; |
| 75 | |
| 76 | const gp_Ax22d& Axis2() const; |
| 77 | |
| 78 | Standard_Real Param1() const; |
| 79 | |
| 80 | Standard_Real Param2() const; |
| 81 | |
| 82 | |
| 83 | |
| 84 | |
| 85 | protected: |
| 86 | |
| 87 | |
| 88 | |
| 89 | |
| 90 | |
| 91 | private: |
| 92 | |
| 93 | |
| 94 | |
| 95 | gp_Ax22d axe; |
| 96 | Standard_Real prm1; |
| 97 | Standard_Real prm2; |
| 98 | Standard_Real TheEpsX; |
| 99 | Standard_Integer TheAccuracy; |
| 100 | GeomAbs_CurveType type; |
| 101 | |
| 102 | |
| 103 | }; |
| 104 | |
| 105 | |
| 106 | #include <IntCurve_PConic.lxx> |
| 107 | |
| 108 | |
| 109 | |
| 110 | |
| 111 | |
| 112 | #endif // _IntCurve_PConic_HeaderFile |
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