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
0050   Standard_EXPORT BiTgte_CurveOnVertex();
0051
0052   Standard_EXPORT BiTgte_CurveOnVertex(const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
0053
0054   Standard_EXPORT void Init (const TopoDS_Edge& EonF, const TopoDS_Vertex& V);
0055
0056   Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
0057
0058   Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
0059
0060   Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
0061
0062   //! Returns  the number  of  intervals for  continuity
0063   //! <S>. May be one if Continuity(me) >= <S>
0064   Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
0065
0066   //! Stores in <T> the  parameters bounding the intervals
0067   //! of continuity <S>.
0068   //!
0069   //! The array must provide  enough room to  accommodate
0070   //! for the parameters. i.e. T.Length() > NbIntervals()
0071   Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, 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, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
0078
0079   Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
0080
0081   Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
0082
0083   Standard_EXPORT Standard_Real Period() const Standard_OVERRIDE;
0084
0085   //! Computes the point of parameter U on the curve.
0086   Standard_EXPORT gp_Pnt Value (const Standard_Real U) const Standard_OVERRIDE;
0087
0088   //! Computes the point of parameter U on the curve.
0089   Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
0090
0091   //! Computes the point of parameter U on the curve with its
0092   //! first derivative.
0093   //! Raised if the continuity of the current interval
0094   //! is not C1.
0095   Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V) const Standard_OVERRIDE;
0096
0097
0098   //! Returns the point P of parameter U, the first and second
0099   //! derivatives V1 and V2.
0100   //! Raised if the continuity of the current interval
0101   //! is not C2.
0102   Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
0103
0104
0105   //! Returns the point P of parameter U, the first, the second
0106   //! and the third derivative.
0107   //! Raised if the continuity of the current interval
0108   //! is not C3.
0109   Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
0110
0111
0112   //! The returned vector gives the value of the derivative for the
0113   //! order of derivation N.
0114   //! Raised if the continuity of the current interval
0115   //! is not CN.
0116   //! Raised if N < 1.
0117   Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
0118
0119   //! Returns the parametric  resolution corresponding
0120   //! to the real space resolution <R3d>.
0121   Standard_EXPORT Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
0122
0123   //! Returns  the  type of the   curve  in the  current
0124   //! interval :   Line,   Circle,   Ellipse, Hyperbola,
0125   //! Parabola, BezierCurve, BSplineCurve, OtherCurve.
0126   Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
0127
0128   Standard_EXPORT gp_Lin Line() const Standard_OVERRIDE;
0129
0130   Standard_EXPORT gp_Circ Circle() const Standard_OVERRIDE;
0131
0132   Standard_EXPORT gp_Elips Ellipse() const Standard_OVERRIDE;
0133
0134   Standard_EXPORT gp_Hypr Hyperbola() const Standard_OVERRIDE;
0135
0136   Standard_EXPORT gp_Parab Parabola() const Standard_OVERRIDE;
0137
0138   Standard_EXPORT Standard_Integer Degree() const Standard_OVERRIDE;
0139
0140   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
0141
0142   Standard_EXPORT Standard_Integer NbPoles() const Standard_OVERRIDE;
0143
0144   Standard_EXPORT Standard_Integer NbKnots() const Standard_OVERRIDE;
0145
0146   Standard_EXPORT Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
0147
0148   Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
0149
0150 private:
0151
0152   Standard_Real myFirst;
0153   Standard_Real myLast;
0154   gp_Pnt myPnt;
0155
0156 };
0157
0158 #endif // _BiTgte_CurveOnVertex_HeaderFile