1 // Created on: 1997-03-21
2 // Created by: Bruno DUMORTIER
3 // Copyright (c) 1997-1999 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 _BiTgte_CurveOnVertex_HeaderFile
18 #define _BiTgte_CurveOnVertex_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Real.hxx>
26 #include <Adaptor3d_Curve.hxx>
27 #include <GeomAbs_Shape.hxx>
28 #include <Standard_Integer.hxx>
29 #include <TColStd_Array1OfReal.hxx>
30 #include <Standard_Boolean.hxx>
31 #include <GeomAbs_CurveType.hxx>
32 class Standard_OutOfRange;
33 class Standard_NoSuchObject;
34 class Standard_DomainError;
37 class Adaptor3d_HCurve;
45 class Geom_BezierCurve;
46 class Geom_BSplineCurve;
49 //! private class used to create a filler rolling on
51 class BiTgte_CurveOnVertex : public Adaptor3d_Curve
58 Standard_EXPORT BiTgte_CurveOnVertex();
60 Standard_EXPORT BiTgte_CurveOnVertex(const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
62 Standard_EXPORT void Init (const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
64 Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
66 Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
68 Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
70 //! Returns the number of intervals for continuity
71 //! <S>. May be one if Continuity(me) >= <S>
72 Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
74 //! Stores in <T> the parameters bounding the intervals
75 //! of continuity <S>.
77 //! The array must provide enough room to accomodate
78 //! for the parameters. i.e. T.Length() > NbIntervals()
79 Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
81 //! Returns a curve equivalent of <me> between
82 //! parameters <First> and <Last>. <Tol> is used to
83 //! test for 3d points confusion.
84 //! If <First> >= <Last>
85 Standard_EXPORT Handle(Adaptor3d_HCurve) Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
87 Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
89 Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
91 Standard_EXPORT Standard_Real Period() const Standard_OVERRIDE;
93 //! Computes the point of parameter U on the curve.
94 Standard_EXPORT gp_Pnt Value (const Standard_Real U) const Standard_OVERRIDE;
96 //! Computes the point of parameter U on the curve.
97 Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
99 //! Computes the point of parameter U on the curve with its
100 //! first derivative.
101 //! Raised if the continuity of the current interval
103 Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V) const Standard_OVERRIDE;
106 //! Returns the point P of parameter U, the first and second
107 //! derivatives V1 and V2.
108 //! Raised if the continuity of the current interval
110 Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
113 //! Returns the point P of parameter U, the first, the second
114 //! and the third derivative.
115 //! Raised if the continuity of the current interval
117 Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
120 //! The returned vector gives the value of the derivative for the
121 //! order of derivation N.
122 //! Raised if the continuity of the current interval
125 Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
127 //! Returns the parametric resolution corresponding
128 //! to the real space resolution <R3d>.
129 Standard_EXPORT Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
131 //! Returns the type of the curve in the current
132 //! interval : Line, Circle, Ellipse, Hyperbola,
133 //! Parabola, BezierCurve, BSplineCurve, OtherCurve.
134 Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
136 Standard_EXPORT gp_Lin Line() const Standard_OVERRIDE;
138 Standard_EXPORT gp_Circ Circle() const Standard_OVERRIDE;
140 Standard_EXPORT gp_Elips Ellipse() const Standard_OVERRIDE;
142 Standard_EXPORT gp_Hypr Hyperbola() const Standard_OVERRIDE;
144 Standard_EXPORT gp_Parab Parabola() const Standard_OVERRIDE;
146 Standard_EXPORT Standard_Integer Degree() const Standard_OVERRIDE;
148 Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
150 Standard_EXPORT Standard_Integer NbPoles() const Standard_OVERRIDE;
152 Standard_EXPORT Standard_Integer NbKnots() const Standard_OVERRIDE;
154 Standard_EXPORT Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
156 Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
171 Standard_Real myFirst;
172 Standard_Real myLast;
184 #endif // _BiTgte_CurveOnVertex_HeaderFile