1 // Created on: 1997-11-21
2 // Created by: Philippe MANGIN
3 // Copyright (c) 1997-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BRepFill_Sweep_HeaderFile
18 #define _BRepFill_Sweep_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <GeomFill_ApproxStyle.hxx>
25 #include <GeomAbs_Shape.hxx>
26 #include <Standard_Integer.hxx>
27 #include <TopoDS_Shape.hxx>
28 #include <TopTools_DataMapOfShapeShape.hxx>
29 #include <TopTools_ListOfShape.hxx>
30 #include <TopoDS_Wire.hxx>
31 #include <TopTools_MapOfShape.hxx>
32 #include <BRepFill_DataMapOfShapeHArray2OfShape.hxx>
33 #include <BRepFill_TransitionStyle.hxx>
34 class BRepFill_LocationLaw;
35 class BRepFill_SectionLaw;
39 //! Topological Sweep Algorithm
40 //! Computes an Sweep shell using a generating
41 //! wire, an SectionLaw and an LocationLaw.
49 Standard_EXPORT BRepFill_Sweep(const Handle(BRepFill_SectionLaw)& Section, const Handle(BRepFill_LocationLaw)& Location, const Standard_Boolean WithKPart);
51 Standard_EXPORT void SetBounds (const TopoDS_Wire& FirstShape, const TopoDS_Wire& LastShape);
53 //! Set Approximation Tolerance
54 //! Tol3d : Tolerance to surface approximation
55 //! Tol2d : Tolerance used to perform curve approximation
56 //! Normally the 2d curve are approximated with a
57 //! tolerance given by the resolution on support surfaces,
58 //! but if this tolerance is too large Tol2d is used.
59 //! TolAngular : Tolerance (in radian) to control the angle
60 //! between tangents on the section law and
61 //! tangent of iso-v on approximated surface
62 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);
64 //! Tolerance To controle Corner management.
66 //! If the discontinuity is lesser than <AngleMin> in radian The
67 //! Transition Performed will be alway "Modified"
68 Standard_EXPORT void SetAngularControl (const Standard_Real AngleMin = 0.01, const Standard_Real AngleMax = 6.0);
70 //! Set the flag that indicates attempt to approximate
71 //! a C1-continuous surface if a swept surface proved
73 Standard_EXPORT void SetForceApproxC1 (const Standard_Boolean ForceApproxC1);
75 //! Build the Sweep Surface
76 //! Transition define Transition strategy
77 //! Approx define Approximation Strategy
78 //! - GeomFill_Section : The composed Function Location X Section
79 //! is directly approximated.
80 //! - GeomFill_Location : The location law is approximated, and the
81 //! SweepSurface is bulid algebric composition
82 //! of approximated location law and section law
83 //! This option is Ok, if Section.Surface() methode
85 //! Continuity : The continuity in v waiting on the surface
86 //! Degmax : The maximum degree in v required on the surface
87 //! Segmax : The maximum number of span in v required on
89 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);
91 //! Say if the Shape is Build.
92 Standard_EXPORT Standard_Boolean IsDone() const;
94 //! returns the Sweeping Shape
95 Standard_EXPORT TopoDS_Shape Shape() const;
97 //! Get the Approximation error.
98 Standard_EXPORT Standard_Real ErrorOnSurface() const;
100 Standard_EXPORT Handle(TopTools_HArray2OfShape) SubShape() const;
102 Standard_EXPORT Handle(TopTools_HArray2OfShape) InterFaces() const;
104 Standard_EXPORT Handle(TopTools_HArray2OfShape) Sections() const;
106 //! returns the Tape corresponding to Index-th edge of section
107 Standard_EXPORT TopoDS_Shape Tape(const Standard_Integer Index) const;
113 Standard_EXPORT Standard_Boolean CorrectApproxParameters();
115 Standard_EXPORT Standard_Boolean BuildWire (const BRepFill_TransitionStyle Transition);
117 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);
119 Standard_EXPORT Standard_Boolean PerformCorner (const Standard_Integer Index, const BRepFill_TransitionStyle Transition, const Handle(TopTools_HArray2OfShape)& Bounds);
121 Standard_EXPORT Standard_Real EvalExtrapol (const Standard_Integer Index, const BRepFill_TransitionStyle Transition) const;
123 Standard_EXPORT Standard_Boolean MergeVertex (const TopoDS_Shape& V1, TopoDS_Shape& V2) const;
125 Standard_EXPORT void UpdateVertex (const Standard_Integer Ipath, const Standard_Integer Isec, const Standard_Real Error, const Standard_Real Param, TopoDS_Shape& V) const;
127 Standard_EXPORT void RebuildTopOrBottomEdge (const TopoDS_Edge& aNewEdge, TopoDS_Edge& anEdge, TopTools_MapOfShape& ReversedEdges) const;
137 Standard_Boolean isDone;
138 Standard_Boolean KPart;
139 Standard_Real myTol3d;
140 Standard_Real myBoundTol;
141 Standard_Real myTol2d;
142 Standard_Real myTolAngular;
143 Standard_Real myAngMin;
144 Standard_Real myAngMax;
145 GeomFill_ApproxStyle myApproxStyle;
146 GeomAbs_Shape myContinuity;
147 Standard_Integer myDegmax;
148 Standard_Integer mySegmax;
149 Standard_Boolean myForceApproxC1;
150 TopoDS_Shape myShape;
151 Handle(BRepFill_LocationLaw) myLoc;
152 Handle(BRepFill_SectionLaw) mySec;
153 Handle(TopTools_HArray2OfShape) myUEdges;
154 Handle(TopTools_HArray2OfShape) myVEdges;
155 TopTools_DataMapOfShapeShape myVEdgesModified;
156 Handle(TopTools_HArray2OfShape) myFaces;
157 TopTools_ListOfShape myAuxShape;
158 Handle(TopTools_HArray1OfShape) myTapes;
160 TopoDS_Wire FirstShape;
161 TopoDS_Wire LastShape;
171 #endif // _BRepFill_Sweep_HeaderFile