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1 | // Created on: 1999-06-22 |
2 | // Created by: Roman LYGIN |
3 | // Copyright (c) 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 _ShapeExtend_ComplexCurve_HeaderFile |
18 | #define _ShapeExtend_ComplexCurve_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
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23 | #include <Geom_Curve.hxx> |
24 | #include <Standard_Integer.hxx> |
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25 | #include <GeomAbs_Shape.hxx> |
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26 | class gp_Trsf; |
27 | class gp_Pnt; |
28 | class gp_Vec; |
29 | |
30 | |
31 | class ShapeExtend_ComplexCurve; |
32 | DEFINE_STANDARD_HANDLE(ShapeExtend_ComplexCurve, Geom_Curve) |
33 | |
34 | //! Defines a curve which consists of several segments. |
35 | //! Implements basic interface to it. |
36 | class ShapeExtend_ComplexCurve : public Geom_Curve |
37 | { |
38 | |
39 | public: |
40 | |
41 | |
42 | //! Returns number of curves |
43 | Standard_EXPORT virtual Standard_Integer NbCurves() const = 0; |
44 | |
45 | //! Returns curve given by its index |
46 | Standard_EXPORT virtual const Handle(Geom_Curve)& Curve (const Standard_Integer index) const = 0; |
47 | |
48 | //! Returns number of the curve for the given parameter U |
49 | //! and local paramete r UOut for the found curve |
50 | Standard_EXPORT virtual Standard_Integer LocateParameter (const Standard_Real U, Standard_Real& UOut) const = 0; |
51 | |
52 | //! Returns global parameter for the whole curve according |
53 | //! to the segment and local parameter on it |
54 | Standard_EXPORT virtual Standard_Real LocalToGlobal (const Standard_Integer index, const Standard_Real Ulocal) const = 0; |
55 | |
56 | //! Applies transformation to each curve |
57 | Standard_EXPORT virtual void Transform (const gp_Trsf& T) Standard_OVERRIDE; |
58 | |
59 | //! Returns 1 - U |
60 | virtual Standard_Real ReversedParameter (const Standard_Real U) const Standard_OVERRIDE; |
61 | |
62 | //! Returns 0 |
63 | virtual Standard_Real FirstParameter() const Standard_OVERRIDE; |
64 | |
65 | //! Returns 1 |
66 | virtual Standard_Real LastParameter() const Standard_OVERRIDE; |
67 | |
68 | //! Returns True if the curve is closed |
69 | virtual Standard_Boolean IsClosed() const Standard_OVERRIDE; |
70 | |
71 | //! Returns False |
72 | virtual Standard_Boolean IsPeriodic() const Standard_OVERRIDE; |
73 | |
74 | //! Returns GeomAbs_C0 |
75 | virtual GeomAbs_Shape Continuity() const Standard_OVERRIDE; |
76 | |
77 | //! Returns False if N > 0 |
78 | virtual Standard_Boolean IsCN (const Standard_Integer N) const Standard_OVERRIDE; |
79 | |
80 | //! Returns point at parameter U. |
81 | //! Finds appropriate curve and local parameter on it. |
82 | Standard_EXPORT virtual void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE; |
83 | |
84 | Standard_EXPORT virtual void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1) const Standard_OVERRIDE; |
85 | |
86 | Standard_EXPORT virtual void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE; |
87 | |
88 | Standard_EXPORT virtual void D3 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE; |
89 | |
90 | Standard_EXPORT virtual gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE; |
91 | |
92 | //! Returns scale factor for recomputing of deviatives. |
93 | Standard_EXPORT virtual Standard_Real GetScaleFactor (const Standard_Integer ind) const = 0; |
94 | |
95 | //! Checks geometrical connectivity of the curves, including |
96 | //! closure (sets fields myClosed) |
97 | Standard_EXPORT Standard_Boolean CheckConnectivity (const Standard_Real Preci); |
98 | |
99 | |
100 | |
101 | |
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102 | DEFINE_STANDARD_RTTIEXT(ShapeExtend_ComplexCurve,Geom_Curve) |
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103 | |
104 | protected: |
105 | |
106 | |
107 | Standard_EXPORT ShapeExtend_ComplexCurve(); |
108 | |
109 | //! Transform the derivative according to its order |
110 | Standard_EXPORT void TransformDN (gp_Vec& V, const Standard_Integer ind, const Standard_Integer N) const; |
111 | |
112 | Standard_Boolean myClosed; |
113 | |
114 | |
115 | private: |
116 | |
117 | |
118 | |
119 | |
120 | }; |
121 | |
122 | |
123 | #include <ShapeExtend_ComplexCurve.lxx> |
124 | |
125 | |
126 | |
127 | |
128 | |
129 | #endif // _ShapeExtend_ComplexCurve_HeaderFile |