1 // Created on: 1995-05-04
2 // Created by: Laurent BOURESCHE
3 // Copyright (c) 1995-1999 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 _ChFiDS_ElSpine_HeaderFile
18 #define _ChFiDS_ElSpine_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <GeomAdaptor_Curve.hxx>
27 #include <TColgp_SequenceOfAx1.hxx>
28 #include <Standard_Real.hxx>
29 #include <Standard_Boolean.hxx>
30 #include <Adaptor3d_Curve.hxx>
31 #include <GeomAbs_Shape.hxx>
32 #include <Standard_Integer.hxx>
33 #include <TColStd_Array1OfReal.hxx>
34 #include <GeomAbs_CurveType.hxx>
35 class ChFiDS_SurfData;
36 class Standard_OutOfRange;
37 class Standard_NoSuchObject;
38 class Standard_DomainError;
39 class Adaptor3d_HCurve;
49 class Geom_BezierCurve;
50 class Geom_BSplineCurve;
53 //! Elementary Spine for cheminements and approximations.
54 class ChFiDS_ElSpine : public Adaptor3d_Curve
61 Standard_EXPORT ChFiDS_ElSpine();
63 Standard_EXPORT virtual Standard_Real FirstParameter() const Standard_OVERRIDE;
65 Standard_EXPORT virtual Standard_Real LastParameter() const Standard_OVERRIDE;
67 Standard_EXPORT Standard_Real GetSavedFirstParameter() const;
69 Standard_EXPORT Standard_Real GetSavedLastParameter() const;
71 Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
73 Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
75 Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
77 //! Returns a curve equivalent of <me> between
78 //! parameters <First> and <Last>. <Tol> is used to
79 //! test for 3d points confusion.
80 Standard_EXPORT virtual Handle(Adaptor3d_HCurve) Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
82 Standard_EXPORT virtual Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
84 Standard_EXPORT virtual GeomAbs_CurveType GetType() const Standard_OVERRIDE;
86 Standard_EXPORT virtual Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
88 Standard_EXPORT void SetPeriodic (const Standard_Boolean I);
90 Standard_EXPORT virtual Standard_Real Period() const Standard_OVERRIDE;
92 Standard_EXPORT virtual gp_Pnt Value (const Standard_Real AbsC) const Standard_OVERRIDE;
94 Standard_EXPORT virtual void D0 (const Standard_Real AbsC, gp_Pnt& P) const Standard_OVERRIDE;
96 Standard_EXPORT virtual void D1 (const Standard_Real AbsC, gp_Pnt& P, gp_Vec& V1) const Standard_OVERRIDE;
98 Standard_EXPORT virtual void D2 (const Standard_Real AbsC, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
100 Standard_EXPORT virtual void D3 (const Standard_Real AbsC, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
102 Standard_EXPORT void FirstParameter (const Standard_Real P);
104 Standard_EXPORT void LastParameter (const Standard_Real P);
106 Standard_EXPORT void SaveFirstParameter();
108 Standard_EXPORT void SaveLastParameter();
110 Standard_EXPORT void SetOrigin (const Standard_Real O);
112 Standard_EXPORT void FirstPointAndTgt (gp_Pnt& P, gp_Vec& T) const;
114 Standard_EXPORT void LastPointAndTgt (gp_Pnt& P, gp_Vec& T) const;
116 Standard_EXPORT Standard_Integer NbVertices() const;
118 Standard_EXPORT const gp_Ax1& VertexWithTangent (const Standard_Integer Index) const;
120 Standard_EXPORT void SetFirstPointAndTgt (const gp_Pnt& P, const gp_Vec& T);
122 Standard_EXPORT void SetLastPointAndTgt (const gp_Pnt& P, const gp_Vec& T);
124 Standard_EXPORT void AddVertexWithTangent (const gp_Ax1& anAx1);
126 Standard_EXPORT void SetCurve (const Handle(Geom_Curve)& C);
128 Standard_EXPORT const Handle(ChFiDS_SurfData)& Previous() const;
130 Standard_EXPORT Handle(ChFiDS_SurfData)& ChangePrevious();
132 Standard_EXPORT const Handle(ChFiDS_SurfData)& Next() const;
134 Standard_EXPORT Handle(ChFiDS_SurfData)& ChangeNext();
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 Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
148 Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
163 GeomAdaptor_Curve curve;
168 TColgp_SequenceOfAx1 VerticesWithTangents;
169 Handle(ChFiDS_SurfData) previous;
170 Handle(ChFiDS_SurfData) next;
171 Standard_Real pfirst;
173 Standard_Real period;
174 Standard_Boolean periodic;
175 Standard_Real pfirstsav;
176 Standard_Real plastsav;
187 #endif // _ChFiDS_ElSpine_HeaderFile