1 // Created on: 1998-05-05
2 // Created by: Stepan MISHIN
3 // Copyright (c) 1998-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Geom_OsculatingSurface_HeaderFile
18 #define _Geom_OsculatingSurface_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Real.hxx>
25 #include <Geom_HSequenceOfBSplineSurface.hxx>
26 #include <TColStd_HSequenceOfInteger.hxx>
27 #include <TColStd_Array1OfBoolean.hxx>
28 #include <Standard_Boolean.hxx>
29 #include <Standard_Integer.hxx>
30 #include <GeomAbs_IsoType.hxx>
31 #include <Geom_SequenceOfBSplineSurface.hxx>
33 class Geom_BSplineSurface;
36 class Geom_OsculatingSurface;
37 DEFINE_STANDARD_HANDLE(Geom_OsculatingSurface, Standard_Transient)
39 class Geom_OsculatingSurface : public Standard_Transient
46 Standard_EXPORT Geom_OsculatingSurface();
48 //! detects if the surface has punctual U or V
49 //! isoparametric curve along on the bounds of the surface
50 //! relatively to the tolerance Tol and Builds the corresponding
51 //! osculating surfaces.
52 Standard_EXPORT Geom_OsculatingSurface(const Handle(Geom_Surface)& BS, const Standard_Real Tol);
54 Standard_EXPORT void Init (const Handle(Geom_Surface)& BS, const Standard_Real Tol);
56 Standard_EXPORT Handle(Geom_Surface) BasisSurface() const;
58 Standard_EXPORT Standard_Real Tolerance() const;
60 //! if Standard_True, L is the local osculating surface
61 //! along U at the point U,V.
62 Standard_EXPORT Standard_Boolean UOscSurf (const Standard_Real U, const Standard_Real V, Standard_Boolean& t, Handle(Geom_BSplineSurface)& L) const;
64 //! if Standard_True, L is the local osculating surface
65 //! along V at the point U,V.
66 Standard_EXPORT Standard_Boolean VOscSurf (const Standard_Real U, const Standard_Real V, Standard_Boolean& t, Handle(Geom_BSplineSurface)& L) const;
68 //! Dumps the content of me into the stream
69 Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const;
72 DEFINE_STANDARD_RTTIEXT(Geom_OsculatingSurface,Standard_Transient)
83 //! returns False if the osculating surface can't be built
84 Standard_EXPORT Standard_Boolean BuildOsculatingSurface (const Standard_Real Param, const Standard_Integer UKnot, const Standard_Integer VKnot, const Handle(Geom_BSplineSurface)& BS, Handle(Geom_BSplineSurface)& L) const;
86 //! returns True if the isoparametric is
88 Standard_EXPORT Standard_Boolean IsQPunctual (const Handle(Geom_Surface)& S, const Standard_Real Param, const GeomAbs_IsoType IT, const Standard_Real TolMin, const Standard_Real TolMax) const;
90 Standard_EXPORT Standard_Boolean HasOscSurf() const;
92 Standard_EXPORT Standard_Boolean IsAlongU() const;
94 Standard_EXPORT Standard_Boolean IsAlongV() const;
96 Standard_EXPORT void ClearOsculFlags();
98 Standard_EXPORT const Geom_SequenceOfBSplineSurface& GetSeqOfL1() const;
100 Standard_EXPORT const Geom_SequenceOfBSplineSurface& GetSeqOfL2() const;
103 Handle(Geom_Surface) myBasisSurf;
105 Handle(Geom_HSequenceOfBSplineSurface) myOsculSurf1;
106 Handle(Geom_HSequenceOfBSplineSurface) myOsculSurf2;
107 Handle(TColStd_HSequenceOfInteger) myKdeg;
108 TColStd_Array1OfBoolean myAlong;
119 #endif // _Geom_OsculatingSurface_HeaderFile