// Created on: 1997-11-21 // Created by: Philippe MANGIN // Copyright (c) 1997-1999 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 _BRepFill_Sweep_HeaderFile #define _BRepFill_Sweep_HeaderFile #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include class BRepFill_LocationLaw; class BRepFill_SectionLaw; class TopoDS_Edge; //! Topological Sweep Algorithm //! Computes an Sweep shell using a generating //! wire, an SectionLaw and an LocationLaw. class BRepFill_Sweep { public: DEFINE_STANDARD_ALLOC Standard_EXPORT BRepFill_Sweep(const Handle(BRepFill_SectionLaw)& Section, const Handle(BRepFill_LocationLaw)& Location, const Standard_Boolean WithKPart); Standard_EXPORT void SetBounds (const TopoDS_Wire& FirstShape, const TopoDS_Wire& LastShape); //! Set Approximation Tolerance //! Tol3d : Tolerance to surface approximation //! Tol2d : Tolerance used to perform curve approximation //! Normally the 2d curve are approximated with a //! tolerance given by the resolution on support surfaces, //! but if this tolerance is too large Tol2d is used. //! TolAngular : Tolerance (in radian) to control the angle //! between tangents on the section law and //! tangent of iso-v on approximated surface Standard_EXPORT void SetTolerance (const Standard_Real Tol3d, const Standard_Real BoundTol = 1.0, const Standard_Real Tol2d = 1.0e-5, const Standard_Real TolAngular = 1.0e-2); //! Tolerance To controle Corner management. //! //! If the discontinuity is lesser than in radian The //! Transition Performed will be alway "Modified" Standard_EXPORT void SetAngularControl (const Standard_Real AngleMin = 0.01, const Standard_Real AngleMax = 6.0); //! Set the flag that indicates attempt to approximate //! a C1-continuous surface if a swept surface proved //! to be C0. Standard_EXPORT void SetForceApproxC1 (const Standard_Boolean ForceApproxC1); //! Build the Sweep Surface //! Transition define Transition strategy //! Approx define Approximation Strategy //! - GeomFill_Section : The composed Function Location X Section //! is directly approximated. //! - GeomFill_Location : The location law is approximated, and the //! SweepSurface is bulid algebric composition //! of approximated location law and section law //! This option is Ok, if Section.Surface() methode //! is effective. //! Continuity : The continuity in v waiting on the surface //! Degmax : The maximum degree in v required on the surface //! Segmax : The maximum number of span in v required on //! the surface. Standard_EXPORT void Build (TopTools_MapOfShape& ReversedEdges, BRepFill_DataMapOfShapeHArray2OfShape& Tapes, BRepFill_DataMapOfShapeHArray2OfShape& Rails, const BRepFill_TransitionStyle Transition = BRepFill_Modified, const GeomAbs_Shape Continuity = GeomAbs_C2, const GeomFill_ApproxStyle Approx = GeomFill_Location, const Standard_Integer Degmax = 11, const Standard_Integer Segmax = 30); //! Say if the Shape is Build. Standard_EXPORT Standard_Boolean IsDone() const; //! returns the Sweeping Shape Standard_EXPORT TopoDS_Shape Shape() const; //! Get the Approximation error. Standard_EXPORT Standard_Real ErrorOnSurface() const; Standard_EXPORT Handle(TopTools_HArray2OfShape) SubShape() const; Standard_EXPORT Handle(TopTools_HArray2OfShape) InterFaces() const; Standard_EXPORT Handle(TopTools_HArray2OfShape) Sections() const; //! returns the Tape corresponding to Index-th edge of section Standard_EXPORT TopoDS_Shape Tape(const Standard_Integer Index) const; protected: Standard_EXPORT Standard_Boolean CorrectApproxParameters(); Standard_EXPORT Standard_Boolean BuildWire (const BRepFill_TransitionStyle Transition); Standard_EXPORT Standard_Boolean BuildShell (const BRepFill_TransitionStyle Transition, const Standard_Integer Vf, const Standard_Integer Vl, TopTools_MapOfShape& ReversedEdges, BRepFill_DataMapOfShapeHArray2OfShape& Tapes, BRepFill_DataMapOfShapeHArray2OfShape& Rails, const Standard_Real ExtendFirst = 0.0, const Standard_Real ExtendLast = 0.0); Standard_EXPORT Standard_Boolean PerformCorner (const Standard_Integer Index, const BRepFill_TransitionStyle Transition, const Handle(TopTools_HArray2OfShape)& Bounds); Standard_EXPORT Standard_Real EvalExtrapol (const Standard_Integer Index, const BRepFill_TransitionStyle Transition) const; Standard_EXPORT Standard_Boolean MergeVertex (const TopoDS_Shape& V1, TopoDS_Shape& V2) const; Standard_EXPORT void UpdateVertex (const Standard_Integer Ipath, const Standard_Integer Isec, const Standard_Real Error, const Standard_Real Param, TopoDS_Shape& V) const; Standard_EXPORT void RebuildTopOrBottomEdge (const TopoDS_Edge& aNewEdge, TopoDS_Edge& anEdge, TopTools_MapOfShape& ReversedEdges) const; private: Standard_Boolean isDone; Standard_Boolean KPart; Standard_Real myTol3d; Standard_Real myBoundTol; Standard_Real myTol2d; Standard_Real myTolAngular; Standard_Real myAngMin; Standard_Real myAngMax; GeomFill_ApproxStyle myApproxStyle; GeomAbs_Shape myContinuity; Standard_Integer myDegmax; Standard_Integer mySegmax; Standard_Boolean myForceApproxC1; TopoDS_Shape myShape; Handle(BRepFill_LocationLaw) myLoc; Handle(BRepFill_SectionLaw) mySec; Handle(TopTools_HArray2OfShape) myUEdges; Handle(TopTools_HArray2OfShape) myVEdges; TopTools_DataMapOfShapeShape myVEdgesModified; Handle(TopTools_HArray2OfShape) myFaces; TopTools_ListOfShape myAuxShape; Handle(TopTools_HArray1OfShape) myTapes; Standard_Real Error; TopoDS_Wire FirstShape; TopoDS_Wire LastShape; }; #endif // _BRepFill_Sweep_HeaderFile