42cf5bc1 |
1 | // Created on: 1995-11-15 |
2 | // Created by: Laurent BOURESCHE |
3 | // Copyright (c) 1995-1999 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 _Law_BSpFunc_HeaderFile |
18 | #define _Law_BSpFunc_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Standard_Real.hxx> |
24 | #include <Law_Function.hxx> |
25 | #include <GeomAbs_Shape.hxx> |
26 | #include <Standard_Integer.hxx> |
27 | #include <TColStd_Array1OfReal.hxx> |
28 | class Law_BSpline; |
29 | class Standard_OutOfRange; |
30 | class Law_Function; |
31 | |
32 | |
33 | class Law_BSpFunc; |
34 | DEFINE_STANDARD_HANDLE(Law_BSpFunc, Law_Function) |
35 | |
36 | //! Law Function based on a BSpline curve 1d. Package |
37 | //! methods and classes are implemented in package Law |
38 | //! to construct the basis curve with several |
39 | //! constraints. |
40 | class Law_BSpFunc : public Law_Function |
41 | { |
42 | |
43 | public: |
44 | |
45 | |
46 | Standard_EXPORT Law_BSpFunc(); |
47 | |
48 | Standard_EXPORT Law_BSpFunc(const Handle(Law_BSpline)& C, const Standard_Real First, const Standard_Real Last); |
49 | |
50 | Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE; |
51 | |
52 | //! Returns the number of intervals for continuity |
53 | //! <S>. May be one if Continuity(me) >= <S> |
54 | Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE; |
55 | |
56 | //! Stores in <T> the parameters bounding the intervals |
57 | //! of continuity <S>. |
58 | //! |
59 | //! The array must provide enough room to accomodate |
60 | //! for the parameters. i.e. T.Length() > NbIntervals() |
61 | Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE; |
62 | |
79104795 |
63 | Standard_EXPORT Standard_Real Value (const Standard_Real X) Standard_OVERRIDE; |
42cf5bc1 |
64 | |
79104795 |
65 | Standard_EXPORT void D1 (const Standard_Real X, Standard_Real& F, Standard_Real& D) Standard_OVERRIDE; |
42cf5bc1 |
66 | |
79104795 |
67 | Standard_EXPORT void D2 (const Standard_Real X, Standard_Real& F, Standard_Real& D, Standard_Real& D2) Standard_OVERRIDE; |
42cf5bc1 |
68 | |
69 | //! Returns a law equivalent of <me> between |
70 | //! parameters <First> and <Last>. <Tol> is used to |
71 | //! test for 3d points confusion. |
72 | //! It is usfule to determines the derivatives |
73 | //! in these values <First> and <Last> if |
74 | //! the Law is not Cn. |
75 | Standard_EXPORT Handle(Law_Function) Trim (const Standard_Real PFirst, const Standard_Real PLast, const Standard_Real Tol) const Standard_OVERRIDE; |
76 | |
79104795 |
77 | Standard_EXPORT void Bounds (Standard_Real& PFirst, Standard_Real& PLast) Standard_OVERRIDE; |
42cf5bc1 |
78 | |
79 | Standard_EXPORT Handle(Law_BSpline) Curve() const; |
80 | |
81 | Standard_EXPORT void SetCurve (const Handle(Law_BSpline)& C); |
82 | |
83 | |
84 | |
85 | |
92efcf78 |
86 | DEFINE_STANDARD_RTTIEXT(Law_BSpFunc,Law_Function) |
42cf5bc1 |
87 | |
88 | protected: |
89 | |
90 | |
91 | |
92 | |
93 | private: |
94 | |
95 | |
96 | Handle(Law_BSpline) curv; |
97 | Standard_Real first; |
98 | Standard_Real last; |
99 | |
100 | |
101 | }; |
102 | |
103 | |
104 | |
105 | |
106 | |
107 | |
108 | |
109 | #endif // _Law_BSpFunc_HeaderFile |