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216 lines
7.3 KiB
C++
216 lines
7.3 KiB
C++
// Created on: 1998-08-20
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// Created by: Philippe MANGIN
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// Copyright (c) 1998-1999 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 _BRepAdaptor_CompCurve_HeaderFile
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#define _BRepAdaptor_CompCurve_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <TopoDS_Wire.hxx>
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#include <Standard_Real.hxx>
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#include <BRepAdaptor_HArray1OfCurve.hxx>
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#include <TColStd_HArray1OfReal.hxx>
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#include <Standard_Integer.hxx>
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#include <Standard_Boolean.hxx>
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#include <Adaptor3d_Curve.hxx>
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#include <GeomAbs_Shape.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <GeomAbs_CurveType.hxx>
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class Standard_NullObject;
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class Standard_DomainError;
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class Standard_OutOfRange;
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class Standard_NoSuchObject;
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class TopoDS_Wire;
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class TopoDS_Edge;
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class Adaptor3d_HCurve;
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class gp_Pnt;
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class gp_Vec;
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class gp_Lin;
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class gp_Circ;
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class gp_Elips;
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class gp_Hypr;
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class gp_Parab;
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class Geom_BezierCurve;
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class Geom_BSplineCurve;
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//! The Curve from BRepAdaptor allows to use a Wire
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//! of the BRep topology like a 3D curve.
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//! Warning: With this class of curve, C0 and C1 continuities
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//! are not assumed. So be careful with some algorithm!
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//! Please note that BRepAdaptor_CompCurve cannot be
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//! periodic curve at all (even if it contains single
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//! periodic edge).
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//!
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//! BRepAdaptor_CompCurve can only work on valid wires where all edges are
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//! connected to each other to make a chain.
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class BRepAdaptor_CompCurve : public Adaptor3d_Curve
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Creates an undefined Curve with no Wire loaded.
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Standard_EXPORT BRepAdaptor_CompCurve();
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Standard_EXPORT BRepAdaptor_CompCurve(const TopoDS_Wire& W, const Standard_Boolean KnotByCurvilinearAbcissa = Standard_False);
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//! Creates a Curve to acces to the geometry of edge
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//! <W>.
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Standard_EXPORT BRepAdaptor_CompCurve(const TopoDS_Wire& W, const Standard_Boolean KnotByCurvilinearAbcissa, const Standard_Real First, const Standard_Real Last, const Standard_Real Tol);
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//! Sets the wire <W>.
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Standard_EXPORT void Initialize (const TopoDS_Wire& W, const Standard_Boolean KnotByCurvilinearAbcissa);
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//! Sets wire <W> and trimmed parameter.
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Standard_EXPORT void Initialize (const TopoDS_Wire& W, const Standard_Boolean KnotByCurvilinearAbcissa, const Standard_Real First, const Standard_Real Last, const Standard_Real Tol);
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//! Returns the wire.
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Standard_EXPORT const TopoDS_Wire& Wire() const;
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//! returns an edge and one parameter on them
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//! corresponding to the parameter U.
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Standard_EXPORT void Edge (const Standard_Real U, TopoDS_Edge& E, Standard_Real& UonE) const;
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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_HCurve) 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.
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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
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//! with its 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
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Standard_EXPORT Standard_Real Resolution (const Standard_Real R3d) const Standard_OVERRIDE;
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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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protected:
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private:
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Standard_EXPORT void Prepare (Standard_Real& W, Standard_Real& D, Standard_Integer& ind) const;
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Standard_EXPORT void InvPrepare (const Standard_Integer ind, Standard_Real& F, Standard_Real& D) const;
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TopoDS_Wire myWire;
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Standard_Real TFirst;
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Standard_Real TLast;
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Standard_Real PTol;
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Handle(BRepAdaptor_HArray1OfCurve) myCurves;
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Handle(TColStd_HArray1OfReal) myKnots;
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Standard_Integer CurIndex;
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Standard_Boolean Forward;
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Standard_Boolean IsbyAC;
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};
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#endif // _BRepAdaptor_CompCurve_HeaderFile
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