1 // Created on: 1993-03-11
2 // Created by: Isabelle GRIGNON
3 // Copyright (c) 1993-1999 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 _Adaptor3d_IsoCurve_HeaderFile
18 #define _Adaptor3d_IsoCurve_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <GeomAbs_IsoType.hxx>
25 #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 Adaptor3d_HSurface;
33 class Standard_NoSuchObject;
34 class Standard_OutOfRange;
35 class Standard_DomainError;
36 class Adaptor3d_HCurve;
44 class Geom_BezierCurve;
45 class Geom_BSplineCurve;
48 //! Defines an isoparametric curve on a surface. The
49 //! type of isoparametric curve (U or V) is defined
50 //! with the enumeration IsoType from GeomAbs if
51 //! NoneIso is given an error is raised.
52 class Adaptor3d_IsoCurve : public Adaptor3d_Curve
59 //! The iso is set to NoneIso.
60 Standard_EXPORT Adaptor3d_IsoCurve();
62 //! The surface is loaded. The iso is set to NoneIso.
63 Standard_EXPORT Adaptor3d_IsoCurve(const Handle(Adaptor3d_HSurface)& S);
65 //! Creates an IsoCurve curve. Iso defines the
66 //! type (isoU or isoU) Param defines the value of
67 //! the iso. The bounds of the iso are the bounds
69 Standard_EXPORT Adaptor3d_IsoCurve(const Handle(Adaptor3d_HSurface)& S, const GeomAbs_IsoType Iso, const Standard_Real Param);
71 //! Create an IsoCurve curve. Iso defines the type
72 //! (isoU or isov). Param defines the value of the
73 //! iso. WFirst,WLast define the bounds of the iso.
74 Standard_EXPORT Adaptor3d_IsoCurve(const Handle(Adaptor3d_HSurface)& S, const GeomAbs_IsoType Iso, const Standard_Real Param, const Standard_Real WFirst, const Standard_Real WLast);
76 //! Changes the surface. The iso is reset to
78 Standard_EXPORT void Load (const Handle(Adaptor3d_HSurface)& S);
80 //! Changes the iso on the current surface.
81 Standard_EXPORT void Load (const GeomAbs_IsoType Iso, const Standard_Real Param);
83 //! Changes the iso on the current surface.
84 Standard_EXPORT void Load (const GeomAbs_IsoType Iso, const Standard_Real Param, const Standard_Real WFirst, const Standard_Real WLast);
86 const Handle(Adaptor3d_HSurface)& Surface() const;
88 GeomAbs_IsoType Iso() const;
90 Standard_Real Parameter() const;
92 Standard_Real FirstParameter() const Standard_OVERRIDE;
94 Standard_Real LastParameter() const Standard_OVERRIDE;
96 Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
98 //! Returns the number of intervals for continuity
99 //! <S>. May be one if Continuity(me) >= <S>
100 Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
102 //! Stores in <T> the parameters bounding the intervals
103 //! of continuity <S>.
105 //! The array must provide enough room to accomodate
106 //! for the parameters. i.e. T.Length() > NbIntervals()
107 Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
109 //! Returns a curve equivalent of <me> between
110 //! parameters <First> and <Last>. <Tol> is used to
111 //! test for 3d points confusion.
112 //! If <First> >= <Last>
113 Standard_EXPORT Handle(Adaptor3d_HCurve) Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
115 Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
117 Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
119 Standard_EXPORT Standard_Real Period() const Standard_OVERRIDE;
121 //! Computes the point of parameter U on the curve.
122 Standard_EXPORT gp_Pnt Value (const Standard_Real U) const Standard_OVERRIDE;
124 //! Computes the point of parameter U on the curve.
125 Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
127 //! Computes the point of parameter U on the curve with its
128 //! first derivative.
129 //! Raised if the continuity of the current interval
131 Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V) const Standard_OVERRIDE;
134 //! Returns the point P of parameter U, the first and second
135 //! derivatives V1 and V2.
136 //! Raised if the continuity of the current interval
138 Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
141 //! Returns the point P of parameter U, the first, the second
142 //! and the third derivative.
143 //! Raised if the continuity of the current interval
145 Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
148 //! The returned vector gives the value of the derivative for the
149 //! order of derivation N.
150 //! Raised if the continuity of the current interval
153 Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
155 //! Returns the parametric resolution corresponding
156 //! to the real space resolution <R3d>.
157 Standard_EXPORT Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
159 //! Returns the type of the curve in the current
160 //! interval : Line, Circle, Ellipse, Hyperbola,
161 //! Parabola, BezierCurve, BSplineCurve, OtherCurve.
162 Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
164 Standard_EXPORT gp_Lin Line() const Standard_OVERRIDE;
166 Standard_EXPORT gp_Circ Circle() const Standard_OVERRIDE;
168 Standard_EXPORT gp_Elips Ellipse() const Standard_OVERRIDE;
170 Standard_EXPORT gp_Hypr Hyperbola() const Standard_OVERRIDE;
172 Standard_EXPORT gp_Parab Parabola() const Standard_OVERRIDE;
174 Standard_EXPORT Standard_Integer Degree() const Standard_OVERRIDE;
176 Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
178 Standard_EXPORT Standard_Integer NbPoles() const Standard_OVERRIDE;
180 Standard_EXPORT Standard_Integer NbKnots() const Standard_OVERRIDE;
182 Standard_EXPORT Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
184 Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
199 Handle(Adaptor3d_HSurface) mySurface;
200 GeomAbs_IsoType myIso;
201 Standard_Real myFirst;
202 Standard_Real myLast;
203 Standard_Real myParameter;
209 #include <Adaptor3d_IsoCurve.lxx>
215 #endif // _Adaptor3d_IsoCurve_HeaderFile