0026555: Modeling Algorithms - Exception-safe status reporting in BRepOffset_MakeOffset
[occt.git] / src / BRepOffset / BRepOffset_Inter2d.hxx
1 // Created on: 1996-08-30
2 // Created by: Yves FRICAUD
3 // Copyright (c) 1996-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
5 //
6 // This file is part of Open CASCADE Technology software library.
7 //
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.
13 //
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
16
17 #ifndef _BRepOffset_Inter2d_HeaderFile
18 #define _BRepOffset_Inter2d_HeaderFile
19
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
23
24 #include <TopTools_IndexedMapOfShape.hxx>
25 #include <Standard_Real.hxx>
26 #include <TopTools_DataMapOfShapeShape.hxx>
27 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
28 class BRepAlgo_AsDes;
29 class TopoDS_Face;
30 class BRepOffset_Analyse;
31 class BRepOffset_Offset;
32
33
34 //! Computes the intersections betwwen edges on a face
35 //! stores result is SD as AsDes from BRepOffset.
36 class BRepOffset_Inter2d 
37 {
38 public:
39
40   DEFINE_STANDARD_ALLOC
41
42   
43   //! Computes the intersections between the edges stored
44   //! is AsDes as descendants of <F> . Intersections is computed
45   //! between two edges if one of them is bound in NewEdges.
46   //! When all faces of the shape are treated the intersection
47   //! vertices have to be fused using the FuseVertices method.
48   //! theDMVV contains the vertices that should be fused
49   Standard_EXPORT static void Compute (const Handle(BRepAlgo_AsDes)& AsDes, 
50                                        const TopoDS_Face& F, 
51                                        const TopTools_IndexedMapOfShape& NewEdges, 
52                                        const Standard_Real Tol,
53                                        TopTools_IndexedDataMapOfShapeListOfShape& theDMVV);
54
55   //! Computes the intersection between the offset edges of the <FI>.
56   //! All intersection vertices will be stored in AsDes2d.
57   //! When all faces of the shape are treated the intersection vertices
58   //! have to be fused using the FuseVertices method.
59   //! theDMVV contains the vertices that should be fused.
60   Standard_EXPORT static Standard_Boolean ConnexIntByInt (const TopoDS_Face& FI,
61                                               BRepOffset_Offset& OFI,
62                                               TopTools_DataMapOfShapeShape& MES,
63                                               const TopTools_DataMapOfShapeShape& Build,
64                                               const Handle(BRepAlgo_AsDes)& AsDes2d,
65                                               const Standard_Real Offset,
66                                               const Standard_Real Tol,
67                                               const BRepOffset_Analyse& Analyse,
68                                               TopTools_IndexedMapOfShape& FacesWithVerts,
69                                               TopTools_IndexedDataMapOfShapeListOfShape& theDMVV);
70
71   //! Computes the intersection between the offset edges generated
72   //! from vertices and stored into AsDes as descendants of the <FI>.
73   //! All intersection vertices will be stored in AsDes2d.
74   //! When all faces of the shape are treated the intersection vertices
75   //! have to be fused using the FuseVertices method.
76   //! theDMVV contains the vertices that should be fused.
77   Standard_EXPORT static void ConnexIntByIntInVert (const TopoDS_Face& FI,
78                                                     BRepOffset_Offset& OFI,
79                                                     TopTools_DataMapOfShapeShape& MES,
80                                                     const TopTools_DataMapOfShapeShape& Build,
81                                                     const Handle(BRepAlgo_AsDes)& AsDes,
82                                                     const Handle(BRepAlgo_AsDes)& AsDes2d,
83                                                     const Standard_Real Tol,
84                                                     const BRepOffset_Analyse& Analyse,
85                                                     TopTools_IndexedDataMapOfShapeListOfShape& theDMVV);
86
87   //! Fuses the chains of vertices in the theDMVV
88   //! and updates AsDes by replacing the old vertices
89   //! with the new ones.
90   Standard_EXPORT static Standard_Boolean FuseVertices (const TopTools_IndexedDataMapOfShapeListOfShape& theDMVV,
91                                                         const Handle(BRepAlgo_AsDes)& theAsDes);
92   //! extents the edge
93   Standard_EXPORT static Standard_Boolean ExtentEdge (const TopoDS_Edge& E,
94                                                       TopoDS_Edge& NE,
95                                                       const Standard_Real theOffset);
96
97 protected:
98
99 private:
100
101 };
102
103 #endif // _BRepOffset_Inter2d_HeaderFile