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42cf5bc1 1// Created on: 1996-08-30
2// Created by: Xavier BENVENISTE
3// Copyright (c) 1996-1999 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
19
20#include <Standard.hxx>
21#include <Standard_DefineAlloc.hxx>
22#include <Standard_Handle.hxx>
23
24#include <Standard_Boolean.hxx>
25#include <GeomLib_InterpolationErrors.hxx>
26#include <Standard_Integer.hxx>
27#include <TColgp_Array1OfPnt.hxx>
28#include <TColStd_Array1OfReal.hxx>
29class Geom_BSplineCurve;
30class StdFail_NotDone;
31class Standard_OutOfRange;
32
33
34//! this class is used to construct a BSpline curve by
35//! interpolation of points at given parameters The
36//! continuity of the curve is degree - 1 and the
37//! method used when boundary condition are not given
38//! is to use odd degrees and null the derivatives on
39//! both sides from degree -1 down to (degree+1) / 2
40//! When even degree is given the returned curve is of
41//! degree - 1 so that the degree of the curve is odd
42class GeomLib_Interpolate
43{
44public:
45
46 DEFINE_STANDARD_ALLOC
47
48
49 Standard_EXPORT GeomLib_Interpolate(const Standard_Integer Degree, const Standard_Integer NumPoints, const TColgp_Array1OfPnt& Points, const TColStd_Array1OfReal& Parameters);
50
51
52 //! returns if everything went OK
53 Standard_Boolean IsDone() const;
54
55 //! returns the error type if any
56 GeomLib_InterpolationErrors Error() const;
57
58 //! returns the interpolated curve of the requested degree
59 Standard_EXPORT Handle(Geom_BSplineCurve) Curve() const;
60
61
62
63
64protected:
65
66
67
68
69
70private:
71
72
73
74 Handle(Geom_BSplineCurve) myCurve;
75 Standard_Boolean myIsDone;
76 GeomLib_InterpolationErrors myError;
77
78
79};
80
81
82#include <GeomLib_Interpolate.lxx>
83
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87