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>
40 class Geom_BezierCurve;
41 class Geom_BSplineCurve;
43 DEFINE_STANDARD_HANDLE(BiTgte_CurveOnVertex, Adaptor3d_Curve)
45 //! private class used to create a filler rolling on
47 class BiTgte_CurveOnVertex : public Adaptor3d_Curve
49 DEFINE_STANDARD_RTTIEXT(BiTgte_CurveOnVertex, Adaptor3d_Curve)
52 Standard_EXPORT BiTgte_CurveOnVertex();
54 Standard_EXPORT BiTgte_CurveOnVertex(const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
56 Standard_EXPORT void Init (const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
58 Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
60 Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
62 Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
64 //! Returns the number of intervals for continuity
65 //! <S>. May be one if Continuity(me) >= <S>
66 Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
68 //! Stores in <T> the parameters bounding the intervals
69 //! of continuity <S>.
71 //! The array must provide enough room to accommodate
72 //! for the parameters. i.e. T.Length() > NbIntervals()
73 Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
75 //! Returns a curve equivalent of <me> between
76 //! parameters <First> and <Last>. <Tol> is used to
77 //! test for 3d points confusion.
78 //! If <First> >= <Last>
79 Standard_EXPORT Handle(Adaptor3d_Curve) Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
81 Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
83 Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
85 Standard_EXPORT Standard_Real Period() const Standard_OVERRIDE;
87 //! Computes the point of parameter U on the curve.
88 Standard_EXPORT gp_Pnt Value (const Standard_Real U) const Standard_OVERRIDE;
90 //! Computes the point of parameter U on the curve.
91 Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
93 //! Computes the point of parameter U on the curve with its
95 //! Raised if the continuity of the current interval
97 Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V) const Standard_OVERRIDE;
100 //! Returns the point P of parameter U, the first and second
101 //! derivatives V1 and V2.
102 //! Raised if the continuity of the current interval
104 Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
107 //! Returns the point P of parameter U, the first, the second
108 //! and the third derivative.
109 //! Raised if the continuity of the current interval
111 Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
114 //! The returned vector gives the value of the derivative for the
115 //! order of derivation N.
116 //! Raised if the continuity of the current interval
119 Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
121 //! Returns the parametric resolution corresponding
122 //! to the real space resolution <R3d>.
123 Standard_EXPORT Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
125 //! Returns the type of the curve in the current
126 //! interval : Line, Circle, Ellipse, Hyperbola,
127 //! Parabola, BezierCurve, BSplineCurve, OtherCurve.
128 Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
130 Standard_EXPORT gp_Lin Line() const Standard_OVERRIDE;
132 Standard_EXPORT gp_Circ Circle() const Standard_OVERRIDE;
134 Standard_EXPORT gp_Elips Ellipse() const Standard_OVERRIDE;
136 Standard_EXPORT gp_Hypr Hyperbola() const Standard_OVERRIDE;
138 Standard_EXPORT gp_Parab Parabola() const Standard_OVERRIDE;
140 Standard_EXPORT Standard_Integer Degree() const Standard_OVERRIDE;
142 Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
144 Standard_EXPORT Standard_Integer NbPoles() const Standard_OVERRIDE;
146 Standard_EXPORT Standard_Integer NbKnots() const Standard_OVERRIDE;
148 Standard_EXPORT Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
150 Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
154 Standard_Real myFirst;
155 Standard_Real myLast;
160 #endif // _BiTgte_CurveOnVertex_HeaderFile