include/opencascade/BiTgte_CurveOnVertex.hxx

0001 // Created on: 1997-03-21
0002 // Created by: Bruno DUMORTIER
0003 // Copyright (c) 1997-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _BiTgte_CurveOnVertex_HeaderFile
0018 #define _BiTgte_CurveOnVertex_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022
0023 #include <Standard_Real.hxx>
0024 #include <Adaptor3d_Curve.hxx>
0025 #include <GeomAbs_Shape.hxx>
0026 #include <Standard_Integer.hxx>
0027 #include <TColStd_Array1OfReal.hxx>
0028 #include <Standard_Boolean.hxx>
0029 #include <GeomAbs_CurveType.hxx>
0030 class TopoDS_Edge;
0031 class TopoDS_Vertex;
0032 class gp_Vec;
0033 class gp_Lin;
0034 class gp_Circ;
0035 class gp_Elips;
0036 class gp_Hypr;
0037 class gp_Parab;
0038 class Geom_BezierCurve;
0039 class Geom_BSplineCurve;
0040
0041 DEFINE_STANDARD_HANDLE(BiTgte_CurveOnVertex, Adaptor3d_Curve)
0042
0043 //! private class used  to create a filler rolling  on
0044 //! an edge.
0045 class BiTgte_CurveOnVertex : public Adaptor3d_Curve
0046 {
0047   DEFINE_STANDARD_RTTIEXT(BiTgte_CurveOnVertex, Adaptor3d_Curve)
0048 public:
0049   Standard_EXPORT BiTgte_CurveOnVertex();
0050
0051   Standard_EXPORT BiTgte_CurveOnVertex(const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
0052
0053   Standard_EXPORT void Init(const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
0054
0055   Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
0056
0057   Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
0058
0059   Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
0060
0061   //! Returns  the number  of  intervals for  continuity
0062   //! <S>. May be one if Continuity(me) >= <S>
0063   Standard_EXPORT Standard_Integer NbIntervals(const GeomAbs_Shape S) const Standard_OVERRIDE;
0064
0065   //! Stores in <T> the  parameters bounding the intervals
0066   //! of continuity <S>.
0067   //!
0068   //! The array must provide  enough room to  accommodate
0069   //! for the parameters. i.e. T.Length() > NbIntervals()
0070   Standard_EXPORT void Intervals(TColStd_Array1OfReal& T,
0071                                  const GeomAbs_Shape   S) const Standard_OVERRIDE;
0072
0073   //! Returns    a  curve equivalent   of  <me>  between
0074   //! parameters <First>  and <Last>. <Tol>  is used  to
0075   //! test for 3d points confusion.
0076   //! If <First> >= <Last>
0077   Standard_EXPORT Handle(Adaptor3d_Curve) Trim(const Standard_Real First,
0078                                                const Standard_Real Last,
0079                                                const Standard_Real Tol) const Standard_OVERRIDE;
0080
0081   Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
0082
0083   Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
0084
0085   Standard_EXPORT Standard_Real Period() const Standard_OVERRIDE;
0086
0087   //! Computes the point of parameter U on the curve.
0088   Standard_EXPORT gp_Pnt Value(const Standard_Real U) const Standard_OVERRIDE;
0089
0090   //! Computes the point of parameter U on the curve.
0091   Standard_EXPORT void D0(const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
0092
0093   //! Computes the point of parameter U on the curve with its
0094   //! first derivative.
0095   //! Raised if the continuity of the current interval
0096   //! is not C1.
0097   Standard_EXPORT void D1(const Standard_Real U, gp_Pnt& P, gp_Vec& V) const Standard_OVERRIDE;
0098
0099   //! Returns the point P of parameter U, the first and second
0100   //! derivatives V1 and V2.
0101   //! Raised if the continuity of the current interval
0102   //! is not C2.
0103   Standard_EXPORT void D2(const Standard_Real U,
0104                           gp_Pnt&             P,
0105                           gp_Vec&             V1,
0106                           gp_Vec&             V2) const Standard_OVERRIDE;
0107
0108   //! Returns the point P of parameter U, the first, the second
0109   //! and the third derivative.
0110   //! Raised if the continuity of the current interval
0111   //! is not C3.
0112   Standard_EXPORT void D3(const Standard_Real U,
0113                           gp_Pnt&             P,
0114                           gp_Vec&             V1,
0115                           gp_Vec&             V2,
0116                           gp_Vec&             V3) const Standard_OVERRIDE;
0117
0118   //! The returned vector gives the value of the derivative for the
0119   //! order of derivation N.
0120   //! Raised if the continuity of the current interval
0121   //! is not CN.
0122   //! Raised if N < 1.
0123   Standard_EXPORT gp_Vec DN(const Standard_Real    U,
0124                             const Standard_Integer N) const Standard_OVERRIDE;
0125
0126   //! Returns the parametric  resolution corresponding
0127   //! to the real space resolution <R3d>.
0128   Standard_EXPORT Standard_Real Resolution(const Standard_Real R3d) const Standard_OVERRIDE;
0129
0130   //! Returns  the  type of the   curve  in the  current
0131   //! interval :   Line,   Circle,   Ellipse, Hyperbola,
0132   //! Parabola, BezierCurve, BSplineCurve, OtherCurve.
0133   Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
0134
0135   Standard_EXPORT gp_Lin Line() const Standard_OVERRIDE;
0136
0137   Standard_EXPORT gp_Circ Circle() const Standard_OVERRIDE;
0138
0139   Standard_EXPORT gp_Elips Ellipse() const Standard_OVERRIDE;
0140
0141   Standard_EXPORT gp_Hypr Hyperbola() const Standard_OVERRIDE;
0142
0143   Standard_EXPORT gp_Parab Parabola() const Standard_OVERRIDE;
0144
0145   Standard_EXPORT Standard_Integer Degree() const Standard_OVERRIDE;
0146
0147   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
0148
0149   Standard_EXPORT Standard_Integer NbPoles() const Standard_OVERRIDE;
0150
0151   Standard_EXPORT Standard_Integer NbKnots() const Standard_OVERRIDE;
0152
0153   Standard_EXPORT Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
0154
0155   Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
0156
0157 private:
0158   Standard_Real myFirst;
0159   Standard_Real myLast;
0160   gp_Pnt        myPnt;
0161 };
0162
0163 #endif // _BiTgte_CurveOnVertex_HeaderFile