include/opencascade/BiTgte_CurveOnEdge.hxx

0001 // Created on: 1997-01-10
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_CurveOnEdge_HeaderFile
0018 #define _BiTgte_CurveOnEdge_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <TopoDS_Edge.hxx>
0025 #include <Adaptor3d_Curve.hxx>
0026 #include <Standard_Real.hxx>
0027 #include <GeomAbs_Shape.hxx>
0028 #include <Standard_Integer.hxx>
0029 #include <TColStd_Array1OfReal.hxx>
0030 #include <Standard_Boolean.hxx>
0031 class Geom_Curve;
0032 class gp_Pnt;
0033 class gp_Vec;
0034 class gp_Lin;
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_CurveOnEdge, Adaptor3d_Curve)
0042
0043 //! private class used  to create a filler rolling  on
0044 //! an edge.
0045 class BiTgte_CurveOnEdge  : public Adaptor3d_Curve
0046 {
0047   DEFINE_STANDARD_RTTIEXT(BiTgte_CurveOnEdge, Adaptor3d_Curve)
0048 public:
0049
0050   Standard_EXPORT BiTgte_CurveOnEdge();
0051
0052   Standard_EXPORT BiTgte_CurveOnEdge(const TopoDS_Edge& EonF, const TopoDS_Edge& Edge);
0053
0054   //! Shallow copy of adaptor
0055   Standard_EXPORT virtual Handle(Adaptor3d_Curve) ShallowCopy() const Standard_OVERRIDE;
0056
0057   Standard_EXPORT void Init (const TopoDS_Edge& EonF, const TopoDS_Edge& Edge);
0058
0059   Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
0060
0061   Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
0062
0063   Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
0064
0065   //! Returns  the number  of  intervals for  continuity
0066   //! <S>. May be one if Continuity(me) >= <S>
0067   Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
0068
0069   //! Stores in <T> the  parameters bounding the intervals
0070   //! of continuity <S>.
0071   //!
0072   //! The array must provide  enough room to  accommodate
0073   //! for the parameters. i.e. T.Length() > NbIntervals()
0074   Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
0075
0076   //! Returns    a  curve equivalent   of  <me>  between
0077   //! parameters <First>  and <Last>. <Tol>  is used  to
0078   //! test for 3d points confusion.
0079   //! If <First> >= <Last>
0080   Standard_EXPORT Handle(Adaptor3d_Curve) Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
0081
0082   Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
0083
0084   Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
0085
0086   Standard_EXPORT Standard_Real Period() const Standard_OVERRIDE;
0087
0088   //! Computes the point of parameter U on the curve.
0089   Standard_EXPORT gp_Pnt Value (const Standard_Real U) const Standard_OVERRIDE;
0090
0091   //! Computes the point of parameter U on the curve.
0092   Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
0093
0094   //! Computes the point of parameter U on the curve with its
0095   //! first derivative.
0096   //! Raised if the continuity of the current interval
0097   //! is not C1.
0098   Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V) const Standard_OVERRIDE;
0099
0100
0101   //! Returns the point P of parameter U, the first and second
0102   //! derivatives V1 and V2.
0103   //! Raised if the continuity of the current interval
0104   //! is not C2.
0105   Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
0106
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, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
0113
0114
0115   //! The returned vector gives the value of the derivative for the
0116   //! order of derivation N.
0117   //! Raised if the continuity of the current interval
0118   //! is not CN.
0119   //! Raised if N < 1.
0120   Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
0121
0122   //! Returns the parametric  resolution corresponding
0123   //! to the real space resolution <R3d>.
0124   Standard_EXPORT Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
0125
0126   //! Returns  the  type of the   curve  in the  current
0127   //! interval :   Line,   Circle,   Ellipse, Hyperbola,
0128   //! Parabola, BezierCurve, BSplineCurve, OtherCurve.
0129   Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
0130
0131   Standard_EXPORT gp_Lin Line() const Standard_OVERRIDE;
0132
0133   Standard_EXPORT gp_Circ Circle() const Standard_OVERRIDE;
0134
0135   Standard_EXPORT gp_Elips Ellipse() const Standard_OVERRIDE;
0136
0137   Standard_EXPORT gp_Hypr Hyperbola() const Standard_OVERRIDE;
0138
0139   Standard_EXPORT gp_Parab Parabola() const Standard_OVERRIDE;
0140
0141   Standard_EXPORT Standard_Integer Degree() const Standard_OVERRIDE;
0142
0143   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
0144
0145   Standard_EXPORT Standard_Integer NbPoles() const Standard_OVERRIDE;
0146
0147   Standard_EXPORT Standard_Integer NbKnots() const Standard_OVERRIDE;
0148
0149   Standard_EXPORT Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
0150
0151   Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
0152
0153 private:
0154
0155   TopoDS_Edge myEdge;
0156   TopoDS_Edge myEonF;
0157   Handle(Geom_Curve) myCurv;
0158   Handle(Geom_Curve) myConF;
0159   GeomAbs_CurveType myType;
0160   gp_Circ myCirc;
0161
0162 };
0163
0164 #endif // _BiTgte_CurveOnEdge_HeaderFile