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1 | // Created on: 1992-09-28 |
2 | // Created by: Remi GILET |
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 _GC_MakeArcOfParabola_HeaderFile |
18 | #define _GC_MakeArcOfParabola_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <GC_Root.hxx> |
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25 | #include <Geom_TrimmedCurve.hxx> |
26 | |
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27 | class StdFail_NotDone; |
28 | class gp_Parab; |
29 | class gp_Pnt; |
30 | |
31 | |
32 | //! Implements construction algorithms for an arc |
33 | //! of parabola in 3D space. The result is a Geom_TrimmedCurve curve. |
34 | //! A MakeArcOfParabola object provides a framework for: |
35 | //! - defining the construction of the arc of parabola, |
36 | //! - implementing the construction algorithm, and |
37 | //! - consulting the results. In particular, the |
38 | //! Value function returns the constructed arc of parabola. |
39 | class GC_MakeArcOfParabola : public GC_Root |
40 | { |
41 | public: |
42 | |
43 | DEFINE_STANDARD_ALLOC |
44 | |
45 | |
46 | //! Creates an arc of Parabola (TrimmedCurve from Geom) from |
47 | //! a Parabola between two parameters Alpha1 and Alpha2 |
48 | //! (given in radians). |
49 | Standard_EXPORT GC_MakeArcOfParabola(const gp_Parab& Parab, const Standard_Real Alpha1, const Standard_Real Alpha2, const Standard_Boolean Sense); |
50 | |
51 | //! Creates an arc of Parabola (TrimmedCurve from Geom) from |
52 | //! a Parabola between point <P> and the parameter |
53 | //! Alpha (given in radians). |
54 | Standard_EXPORT GC_MakeArcOfParabola(const gp_Parab& Parab, const gp_Pnt& P, const Standard_Real Alpha, const Standard_Boolean Sense); |
55 | |
56 | //! Creates an arc of Parabola (TrimmedCurve from Geom) from |
57 | //! a Parabola between two points P1 and P2. |
58 | Standard_EXPORT GC_MakeArcOfParabola(const gp_Parab& Parab, const gp_Pnt& P1, const gp_Pnt& P2, const Standard_Boolean Sense); |
59 | |
60 | //! Returns the constructed arc of parabola. |
61 | Standard_EXPORT const Handle(Geom_TrimmedCurve)& Value() const; |
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62 | |
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63 | operator const Handle(Geom_TrimmedCurve)& () const { return Value(); } |
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64 | |
65 | private: |
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66 | Handle(Geom_TrimmedCurve) TheArc; |
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67 | }; |
68 | |
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69 | #endif // _GC_MakeArcOfParabola_HeaderFile |