// Created on: 1993-02-22 // Created by: Modelistation // Copyright (c) 1993-1999 Matra Datavision // Copyright (c) 1999-2014 OPEN CASCADE SAS // // This file is part of Open CASCADE Technology software library. // // This library is free software; you can redistribute it and/or modify it under // the terms of the GNU Lesser General Public License version 2.1 as published // by the Free Software Foundation, with special exception defined in the file // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT // distribution for complete text of the license and disclaimer of any warranty. // // Alternatively, this file may be used under the terms of Open CASCADE // commercial license or contractual agreement. #ifndef _Adaptor3d_CurveOnSurface_HeaderFile #define _Adaptor3d_CurveOnSurface_HeaderFile #include "Adaptor2d_Curve2d.hxx" #include "Adaptor3d_Surface.hxx" #include "GeomAbs_CurveType.hxx" #include "GeomAbs_Shape.hxx" #include "NCollection_Array1.hxx" #include "NCollection_Sequence.hxx" #include "NCollection_HSequence.hxx" //! An interface between the services provided by a curve //! lying on a surface from the package Geom and those //! required of the curve by algorithms which use it. The //! curve is defined as a 2D curve from the Geom2d //! package, in the parametric space of the surface. class Adaptor3d_CurveOnSurface : public Adaptor3d_Curve { DEFINE_STANDARD_RTTIEXT(Adaptor3d_CurveOnSurface, Adaptor3d_Curve) public: Standard_EXPORT Adaptor3d_CurveOnSurface(); Standard_EXPORT Adaptor3d_CurveOnSurface(const occ::handle& S); //! Creates a CurveOnSurface from the 2d curve and //! the surface . Standard_EXPORT Adaptor3d_CurveOnSurface(const occ::handle& C, const occ::handle& S); //! Shallow copy of adaptor Standard_EXPORT occ::handle ShallowCopy() const override; //! Changes the surface. Standard_EXPORT void Load(const occ::handle& S); //! Changes the 2d curve. Standard_EXPORT void Load(const occ::handle& C); //! Load both curve and surface. Standard_EXPORT void Load(const occ::handle& C, const occ::handle& S); Standard_EXPORT const occ::handle& GetCurve() const; Standard_EXPORT const occ::handle& GetSurface() const; Standard_EXPORT occ::handle& ChangeCurve(); Standard_EXPORT occ::handle& ChangeSurface(); Standard_EXPORT double FirstParameter() const override; Standard_EXPORT double LastParameter() const override; Standard_EXPORT GeomAbs_Shape Continuity() const override; //! Returns the number of intervals for continuity //! . May be one if Continuity(me) >= Standard_EXPORT int NbIntervals(const GeomAbs_Shape S) const override; //! Stores in the parameters bounding the intervals //! of continuity . //! //! The array must provide enough room to accommodate //! for the parameters. i.e. T.Length() > NbIntervals() Standard_EXPORT void Intervals(NCollection_Array1& T, const GeomAbs_Shape S) const override; //! Returns a curve equivalent of between //! parameters and . is used to //! test for 3d points confusion. //! If >= Standard_EXPORT occ::handle Trim(const double First, const double Last, const double Tol) const override; Standard_EXPORT bool IsClosed() const override; Standard_EXPORT bool IsPeriodic() const override; Standard_EXPORT double Period() const override; //! Point evaluation. Raises an exception on failure. [[nodiscard]] Standard_EXPORT gp_Pnt EvalD0(const double theU) const final; //! D1 evaluation. Raises an exception on failure. [[nodiscard]] Standard_EXPORT Geom_Curve::ResD1 EvalD1(const double theU) const final; //! D2 evaluation. Raises an exception on failure. [[nodiscard]] Standard_EXPORT Geom_Curve::ResD2 EvalD2(const double theU) const final; //! D3 evaluation. Raises an exception on failure. [[nodiscard]] Standard_EXPORT Geom_Curve::ResD3 EvalD3(const double theU) const final; //! DN evaluation. Raises an exception on failure. [[nodiscard]] Standard_EXPORT gp_Vec EvalDN(const double theU, const int theN) const final; //! Returns the parametric resolution corresponding //! to the real space resolution . Standard_EXPORT double Resolution(const double R3d) const override; //! Returns the type of the curve in the current //! interval: Line, Circle, Ellipse, Hyperbola, //! Parabola, BezierCurve, BSplineCurve, OtherCurve. Standard_EXPORT GeomAbs_CurveType GetType() const override; Standard_EXPORT gp_Lin Line() const override; Standard_EXPORT gp_Circ Circle() const override; Standard_EXPORT gp_Elips Ellipse() const override; Standard_EXPORT gp_Hypr Hyperbola() const override; Standard_EXPORT gp_Parab Parabola() const override; Standard_EXPORT int Degree() const override; Standard_EXPORT bool IsRational() const override; Standard_EXPORT int NbPoles() const override; Standard_EXPORT int NbKnots() const override; Standard_EXPORT occ::handle Bezier() const override; Standard_EXPORT occ::handle BSpline() const override; private: Standard_EXPORT void EvalKPart(); //! Evaluates myFirstSurf and myLastSurf //! for trimming the curve on surface. //! Following methods output left-bottom and right-top points //! of located part on surface //! for trimming the curve on surface. Standard_EXPORT void EvalFirstLastSurf(); Standard_EXPORT void LocatePart(const gp_Pnt2d& UV, const gp_Vec2d& DUV, const occ::handle& S, gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const; Standard_EXPORT bool LocatePart_RevExt(const gp_Pnt2d& UV, const gp_Vec2d& DUV, const occ::handle& S, gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const; Standard_EXPORT bool LocatePart_Offset(const gp_Pnt2d& UV, const gp_Vec2d& DUV, const occ::handle& S, gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const; //! Extracts the numbers of knots which equal //! the point and checks derivative components //! by zero equivalence. Standard_EXPORT void FindBounds(const NCollection_Array1& Arr, const double XYComp, const double DUVComp, int& Bnd1, int& Bnd2, bool& DerIsNull) const; private: occ::handle mySurface; occ::handle myCurve; GeomAbs_CurveType myType; gp_Circ myCirc; gp_Lin myLin; occ::handle myFirstSurf; occ::handle myLastSurf; occ::handle> myIntervals; GeomAbs_Shape myIntCont; }; #endif // _Adaptor3d_CurveOnSurface_HeaderFile