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1 | // Created on: 1997-12-19 |
2 | // Created by: Philippe MANGIN |
3 | // Copyright (c) 1997-1999 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 _GeomFill_Frenet_HeaderFile |
18 | #define _GeomFill_Frenet_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <gp_Pnt.hxx> |
24 | #include <TColStd_HArray1OfReal.hxx> |
25 | #include <Standard_Boolean.hxx> |
26 | #include <GeomFill_TrihedronLaw.hxx> |
27 | #include <Standard_Real.hxx> |
28 | #include <Standard_Integer.hxx> |
29 | #include <GeomAbs_Shape.hxx> |
30 | #include <TColStd_Array1OfReal.hxx> |
31 | class Standard_OutOfRange; |
32 | class Standard_ConstructionError; |
33 | class GeomFill_TrihedronLaw; |
34 | class Adaptor3d_HCurve; |
35 | class gp_Vec; |
36 | |
37 | |
38 | class GeomFill_Frenet; |
39 | DEFINE_STANDARD_HANDLE(GeomFill_Frenet, GeomFill_TrihedronLaw) |
40 | |
41 | //! Defined Frenet Trihedron Law |
42 | class GeomFill_Frenet : public GeomFill_TrihedronLaw |
43 | { |
44 | |
45 | public: |
46 | |
47 | |
48 | Standard_EXPORT GeomFill_Frenet(); |
49 | |
50 | Standard_EXPORT virtual Handle(GeomFill_TrihedronLaw) Copy() const Standard_OVERRIDE; |
51 | |
52 | Standard_EXPORT void Init(); |
53 | |
54 | Standard_EXPORT virtual void SetCurve (const Handle(Adaptor3d_HCurve)& C) Standard_OVERRIDE; |
55 | |
56 | //! compute Triedrhon on curve at parameter <Param> |
57 | Standard_EXPORT virtual Standard_Boolean D0 (const Standard_Real Param, gp_Vec& Tangent, gp_Vec& Normal, gp_Vec& BiNormal) Standard_OVERRIDE; |
58 | |
59 | //! compute Triedrhon and derivative Trihedron on curve |
60 | //! at parameter <Param> |
61 | //! Warning : It used only for C1 or C2 aproximation |
62 | Standard_EXPORT virtual Standard_Boolean D1 (const Standard_Real Param, gp_Vec& Tangent, gp_Vec& DTangent, gp_Vec& Normal, gp_Vec& DNormal, gp_Vec& BiNormal, gp_Vec& DBiNormal) Standard_OVERRIDE; |
63 | |
64 | //! compute Trihedron on curve |
65 | //! first and seconde derivatives. |
66 | //! Warning : It used only for C2 aproximation |
67 | Standard_EXPORT virtual Standard_Boolean D2 (const Standard_Real Param, gp_Vec& Tangent, gp_Vec& DTangent, gp_Vec& D2Tangent, gp_Vec& Normal, gp_Vec& DNormal, gp_Vec& D2Normal, gp_Vec& BiNormal, gp_Vec& DBiNormal, gp_Vec& D2BiNormal) Standard_OVERRIDE; |
68 | |
69 | //! Returns the number of intervals for continuity |
70 | //! <S>. |
71 | //! May be one if Continuity(me) >= <S> |
72 | Standard_EXPORT virtual Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE; |
73 | |
74 | //! Stores in <T> the parameters bounding the intervals |
75 | //! of continuity <S>. |
76 | //! |
77 | //! The array must provide enough room to accomodate |
78 | //! for the parameters. i.e. T.Length() > NbIntervals() |
79 | Standard_EXPORT virtual void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE; |
80 | |
81 | //! Get average value of Tangent(t) and Normal(t) it is usfull to |
82 | //! make fast approximation of rational surfaces. |
83 | Standard_EXPORT virtual void GetAverageLaw (gp_Vec& ATangent, gp_Vec& ANormal, gp_Vec& ABiNormal) Standard_OVERRIDE; |
84 | |
85 | //! Say if the law is Constant. |
86 | Standard_EXPORT virtual Standard_Boolean IsConstant() const Standard_OVERRIDE; |
87 | |
88 | //! Return True. |
89 | Standard_EXPORT virtual Standard_Boolean IsOnlyBy3dCurve() const Standard_OVERRIDE; |
90 | |
91 | |
92 | |
93 | |
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94 | DEFINE_STANDARD_RTTIEXT(GeomFill_Frenet,GeomFill_TrihedronLaw) |
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95 | |
96 | protected: |
97 | |
98 | |
99 | |
100 | |
101 | private: |
102 | |
103 | |
104 | Standard_EXPORT Standard_Boolean IsSingular (const Standard_Real U, Standard_Integer& Index) const; |
105 | |
106 | Standard_EXPORT Standard_Boolean DoSingular (const Standard_Real U, const Standard_Integer Index, gp_Vec& Tangent, gp_Vec& BiNormal, Standard_Integer& n, Standard_Integer& k, Standard_Integer& TFlag, Standard_Integer& BNFlag, Standard_Real& Delta); |
107 | |
108 | //! computes Triedrhon on curve at parameter <Param> |
109 | Standard_EXPORT Standard_Boolean SingularD0 (const Standard_Real Param, const Standard_Integer Index, gp_Vec& Tangent, gp_Vec& Normal, gp_Vec& BiNormal, Standard_Real& Delta); |
110 | |
111 | //! computes Triedrhon and derivative Trihedron on curve |
112 | //! at parameter <Param> |
113 | //! Warning : It used only for C1 or C2 aproximation |
114 | Standard_EXPORT Standard_Boolean SingularD1 (const Standard_Real Param, const Standard_Integer Index, gp_Vec& Tangent, gp_Vec& DTangent, gp_Vec& Normal, gp_Vec& DNormal, gp_Vec& BiNormal, gp_Vec& DBiNormal, Standard_Real& Delta); |
115 | |
116 | //! computes Trihedron on curve |
117 | //! first and seconde derivatives. |
118 | //! Warning : It used only for C2 aproximation |
119 | Standard_EXPORT Standard_Boolean SingularD2 (const Standard_Real Param, const Standard_Integer Index, gp_Vec& Tangent, gp_Vec& DTangent, gp_Vec& D2Tangent, gp_Vec& Normal, gp_Vec& DNormal, gp_Vec& D2Normal, gp_Vec& BiNormal, gp_Vec& DBiNormal, gp_Vec& D2BiNormal, Standard_Real& Delta); |
120 | |
121 | //! revolves the trihedron (which is determined |
122 | //! of given "Tangent", "Normal" and "BiNormal" vectors) |
123 | //! to coincide "Tangent" and "NewTangent" axes. |
124 | Standard_EXPORT Standard_Boolean RotateTrihedron (gp_Vec& Tangent, gp_Vec& Normal, gp_Vec& BiNormal, const gp_Vec& NewTangent) const; |
125 | |
126 | gp_Pnt P; |
127 | Handle(TColStd_HArray1OfReal) mySngl; |
128 | Handle(TColStd_HArray1OfReal) mySnglLen; |
129 | Standard_Boolean isSngl; |
130 | |
131 | |
132 | }; |
133 | |
134 | |
135 | |
136 | |
137 | |
138 | |
139 | |
140 | #endif // _GeomFill_Frenet_HeaderFile |