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198 lines
7.8 KiB
C++
198 lines
7.8 KiB
C++
// Created on: 1993-02-22
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// Created by: Modelistation
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// Copyright (c) 1993-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Adaptor3d_CurveOnSurface_HeaderFile
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#define _Adaptor3d_CurveOnSurface_HeaderFile
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#include <Adaptor2d_Curve2d.hxx>
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#include <Adaptor3d_Surface.hxx>
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#include <GeomAbs_CurveType.hxx>
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#include <GeomAbs_Shape.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <TColStd_HSequenceOfReal.hxx>
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DEFINE_STANDARD_HANDLE(Adaptor3d_CurveOnSurface, Adaptor3d_Curve)
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//! An interface between the services provided by a curve
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//! lying on a surface from the package Geom and those
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//! required of the curve by algorithms which use it. The
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//! curve is defined as a 2D curve from the Geom2d
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//! package, in the parametric space of the surface.
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class Adaptor3d_CurveOnSurface : public Adaptor3d_Curve
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{
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DEFINE_STANDARD_RTTIEXT(Adaptor3d_CurveOnSurface, Adaptor3d_Curve)
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public:
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Standard_EXPORT Adaptor3d_CurveOnSurface();
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Standard_EXPORT Adaptor3d_CurveOnSurface(const Handle(Adaptor3d_Surface)& S);
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//! Creates a CurveOnSurface from the 2d curve <C> and
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//! the surface <S>.
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Standard_EXPORT Adaptor3d_CurveOnSurface(const Handle(Adaptor2d_Curve2d)& C, const Handle(Adaptor3d_Surface)& S);
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//! Shallow copy of adaptor
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Standard_EXPORT virtual Handle(Adaptor3d_Curve) ShallowCopy() const Standard_OVERRIDE;
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//! Changes the surface.
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Standard_EXPORT void Load (const Handle(Adaptor3d_Surface)& S);
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//! Changes the 2d curve.
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Standard_EXPORT void Load (const Handle(Adaptor2d_Curve2d)& C);
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//! Load both curve and surface.
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Standard_EXPORT void Load (const Handle(Adaptor2d_Curve2d)& C, const Handle(Adaptor3d_Surface)& S);
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Standard_EXPORT const Handle(Adaptor2d_Curve2d)& GetCurve() const;
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Standard_EXPORT const Handle(Adaptor3d_Surface)& GetSurface() const;
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Standard_EXPORT Handle(Adaptor2d_Curve2d)& ChangeCurve();
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Standard_EXPORT Handle(Adaptor3d_Surface)& ChangeSurface();
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Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
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Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
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Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
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//! Returns the number of intervals for continuity
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//! <S>. May be one if Continuity(me) >= <S>
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Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
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//! Stores in <T> the parameters bounding the intervals
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//! of continuity <S>.
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//!
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//! The array must provide enough room to accommodate
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//! for the parameters. i.e. T.Length() > NbIntervals()
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Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
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//! Returns a curve equivalent of <me> between
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//! parameters <First> and <Last>. <Tol> is used to
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//! test for 3d points confusion.
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//! If <First> >= <Last>
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Standard_EXPORT Handle(Adaptor3d_Curve) Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
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Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
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Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
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Standard_EXPORT Standard_Real Period() const Standard_OVERRIDE;
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//! Computes the point of parameter U on the curve.
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Standard_EXPORT gp_Pnt Value (const Standard_Real U) const Standard_OVERRIDE;
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//! Computes the point of parameter U on the curve.
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Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
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//! Computes the point of parameter U on the curve with its
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//! first derivative.
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//! Raised if the continuity of the current interval
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//! is not C1.
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Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V) const Standard_OVERRIDE;
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//! Returns the point P of parameter U, the first and second
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//! derivatives V1 and V2.
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//! Raised if the continuity of the current interval
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//! is not C2.
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Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
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//! Returns the point P of parameter U, the first, the second
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//! and the third derivative.
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//! Raised if the continuity of the current interval
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//! is not C3.
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Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
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//! The returned vector gives the value of the derivative for the
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//! order of derivation N.
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//! Raised if the continuity of the current interval
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//! is not CN.
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//! Raised if N < 1.
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Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
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//! Returns the parametric resolution corresponding
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//! to the real space resolution <R3d>.
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Standard_EXPORT Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
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//! Returns the type of the curve in the current
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//! interval : Line, Circle, Ellipse, Hyperbola,
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//! Parabola, BezierCurve, BSplineCurve, OtherCurve.
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Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
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Standard_EXPORT gp_Lin Line() const Standard_OVERRIDE;
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Standard_EXPORT gp_Circ Circle() const Standard_OVERRIDE;
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Standard_EXPORT gp_Elips Ellipse() const Standard_OVERRIDE;
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Standard_EXPORT gp_Hypr Hyperbola() const Standard_OVERRIDE;
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Standard_EXPORT gp_Parab Parabola() const Standard_OVERRIDE;
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Standard_EXPORT Standard_Integer Degree() const Standard_OVERRIDE;
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Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
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Standard_EXPORT Standard_Integer NbPoles() const Standard_OVERRIDE;
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Standard_EXPORT Standard_Integer NbKnots() const Standard_OVERRIDE;
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Standard_EXPORT Handle(Geom_BezierCurve) Bezier() const Standard_OVERRIDE;
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Standard_EXPORT Handle(Geom_BSplineCurve) BSpline() const Standard_OVERRIDE;
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private:
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Standard_EXPORT void EvalKPart();
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//! Evaluates myFirstSurf and myLastSurf
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//! for trimming the curve on surface.
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//! Following methods output left-bottom and right-top points
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//! of located part on surface
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//! for trimming the curve on surface.
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Standard_EXPORT void EvalFirstLastSurf();
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Standard_EXPORT void LocatePart (const gp_Pnt2d& UV, const gp_Vec2d& DUV, const Handle(Adaptor3d_Surface)& S, gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const;
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Standard_EXPORT Standard_Boolean LocatePart_RevExt (const gp_Pnt2d& UV, const gp_Vec2d& DUV, const Handle(Adaptor3d_Surface)& S, gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const;
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Standard_EXPORT Standard_Boolean LocatePart_Offset (const gp_Pnt2d& UV, const gp_Vec2d& DUV, const Handle(Adaptor3d_Surface)& S, gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const;
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//! Extracts the numbers of knots which equal
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//! the point and checks derivative components
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//! by zero equivalence.
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Standard_EXPORT void FindBounds (const TColStd_Array1OfReal& Arr, const Standard_Real XYComp, const Standard_Real DUVComp, Standard_Integer& Bnd1, Standard_Integer& Bnd2, Standard_Boolean& DerIsNull) const;
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private:
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Handle(Adaptor3d_Surface) mySurface;
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Handle(Adaptor2d_Curve2d) myCurve;
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GeomAbs_CurveType myType;
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gp_Circ myCirc;
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gp_Lin myLin;
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Handle(Adaptor3d_Surface) myFirstSurf;
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Handle(Adaptor3d_Surface) myLastSurf;
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Handle(TColStd_HSequenceOfReal) myIntervals;
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GeomAbs_Shape myIntCont;
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};
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#endif // _Adaptor3d_CurveOnSurface_HeaderFile
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