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Open CASCADE Technology
6.7.1
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Root class for 3D curves on which geometric
algorithms work.
An adapted curve is an interface between the
services provided by a curve and those required of
the curve by algorithms which use it.
Two derived concrete classes are provided:
More...
#include <Adaptor3d_Curve.hxx>

Public Member Functions | |
| virtual void | Delete () |
| virtual | ~Adaptor3d_Curve () |
| virtual Standard_Real | FirstParameter () const |
| virtual Standard_Real | LastParameter () const |
| virtual GeomAbs_Shape | Continuity () const |
| virtual Standard_Integer | NbIntervals (const GeomAbs_Shape S) |
| Returns the number of intervals for continuity <S>. May be one if Continuity(me) >= <S> More... | |
| virtual void | Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) |
Stores in <T> the parameters bounding the intervals <br>
of continuity <S>. <br>
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| virtual Handle_Adaptor3d_HCurve | Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const |
| Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. //! If <First> >= <Last> More... | |
| virtual Standard_Boolean | IsClosed () const |
| virtual Standard_Boolean | IsPeriodic () const |
| virtual Standard_Real | Period () const |
| virtual gp_Pnt | Value (const Standard_Real U) const |
| Computes the point of parameter U on the curve. More... | |
| virtual void | D0 (const Standard_Real U, gp_Pnt &P) const |
| Computes the point of parameter U on the curve. More... | |
| virtual void | D1 (const Standard_Real U, gp_Pnt &P, gp_Vec &V) const |
Computes the point of parameter U on the curve with its <br> first derivative. | |
| virtual void | D2 (const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2) const |
| Returns the point P of parameter U, the first and second derivatives V1 and V2. //! Raised if the continuity of the current interval is not C2. More... | |
| virtual void | D3 (const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2, gp_Vec &V3) const |
| Returns the point P of parameter U, the first, the second and the third derivative. //! Raised if the continuity of the current interval is not C3. More... | |
| virtual gp_Vec | DN (const Standard_Real U, const Standard_Integer N) const |
| The returned vector gives the value of the derivative for the order of derivation N. //! Raised if the continuity of the current interval is not CN. //! Raised if N < 1. More... | |
| virtual Standard_Real | Resolution (const Standard_Real R3d) const |
| Returns the parametric resolution corresponding to the real space resolution <R3d>. More... | |
| virtual GeomAbs_CurveType | GetType () const |
| Returns the type of the curve in the current interval : Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve. More... | |
| virtual gp_Lin | Line () const |
| virtual gp_Circ | Circle () const |
| virtual gp_Elips | Ellipse () const |
| virtual gp_Hypr | Hyperbola () const |
| virtual gp_Parab | Parabola () const |
| virtual Standard_Integer | Degree () const |
| virtual Standard_Boolean | IsRational () const |
| virtual Standard_Integer | NbPoles () const |
| virtual Standard_Integer | NbKnots () const |
| virtual Handle_Geom_BezierCurve | Bezier () const |
| virtual Handle_Geom_BSplineCurve | BSpline () const |
Root class for 3D curves on which geometric
algorithms work.
An adapted curve is an interface between the
services provided by a curve and those required of
the curve by algorithms which use it.
Two derived concrete classes are provided:
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Computes the point of parameter U on the curve.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, and GeomFill_SnglrFunc.
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Computes the point of parameter U on the curve with its <br>
first derivative.
//! Raised if the continuity of the current interval
is not C1.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, BiTgte_CurveOnEdge, ChFiDS_ElSpine, BiTgte_CurveOnVertex, and GeomFill_SnglrFunc.
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Returns the point P of parameter U, the first and second
derivatives V1 and V2.
//! Raised if the continuity of the current interval
is not C2.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, BiTgte_CurveOnEdge, ChFiDS_ElSpine, BiTgte_CurveOnVertex, and GeomFill_SnglrFunc.
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Returns the point P of parameter U, the first, the second
and the third derivative.
//! Raised if the continuity of the current interval
is not C3.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, ChFiDS_ElSpine, and GeomFill_SnglrFunc.
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The returned vector gives the value of the derivative for the
order of derivation N.
//! Raised if the continuity of the current interval
is not CN.
//! Raised if N < 1.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, GeomAdaptor_Curve, Adaptor3d_IsoCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, and GeomFill_SnglrFunc.
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Returns the type of the curve in the current
interval : Line, Circle, Ellipse, Hyperbola,
Parabola, BezierCurve, BSplineCurve, OtherCurve.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, BRepAdaptor_CompCurve, GeomAdaptor_Curve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, ChFiDS_ElSpine, and GeomFill_SnglrFunc.
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Stores in <T> the parameters bounding the intervals <br>
of continuity <S>. <br>
The array must provide enough room to accomodate
for the parameters. i.e. T.Length() > NbIntervals()
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ChFiDS_ElSpine, and GeomFill_SnglrFunc.
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Returns the number of intervals for continuity
<S>. May be one if Continuity(me) >= <S>
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ChFiDS_ElSpine, and GeomFill_SnglrFunc.
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Returns the parametric resolution corresponding
to the real space resolution <R3d>.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, ChFiDS_ElSpine, and GeomFill_SnglrFunc.
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Returns a curve equivalent of <me> between
parameters <First> and <Last>. <Tol> is used to
test for 3d points confusion.
//! If <First> >= <Last>
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, BiTgte_CurveOnEdge, ChFiDS_ElSpine, and BiTgte_CurveOnVertex.
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Computes the point of parameter U on the curve.
Reimplemented in BRepAdaptor_Curve, ProjLib_ProjectOnPlane, Adaptor3d_CurveOnSurface, BRepAdaptor_CompCurve, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, and GeomFill_SnglrFunc.
1.8.5