include/opencascade/BRepOffset_Inter2d.hxx

0001 // Created on: 1996-08-30
0002 // Created by: Yves FRICAUD
0003 // Copyright (c) 1996-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _BRepOffset_Inter2d_HeaderFile
0018 #define _BRepOffset_Inter2d_HeaderFile
0019
0020 #include <TopTools_ShapeMapHasher.hxx>
0021 #include <NCollection_IndexedMap.hxx>
0022 #include <TopoDS_Shape.hxx>
0023 #include <NCollection_DataMap.hxx>
0024 #include <NCollection_List.hxx>
0025 #include <NCollection_IndexedDataMap.hxx>
0026 #include <Message_ProgressRange.hxx>
0027
0028 class BRepAlgo_AsDes;
0029 class BRepAlgo_Image;
0030 class BRepOffset_Analyse;
0031 class BRepOffset_Offset;
0032 class TopoDS_Edge;
0033 class TopoDS_Face;
0034
0035 //! Computes the intersections between edges on a face
0036 //! stores result is SD as AsDes from BRepOffset.
0037 class BRepOffset_Inter2d
0038 {
0039 public:
0040   DEFINE_STANDARD_ALLOC
0041
0042   //! Computes the intersections between the edges stored
0043   //! is AsDes as descendants of <F> . Intersections is computed
0044   //! between two edges if one of them is bound in NewEdges.
0045   //! When all faces of the shape are treated the intersection
0046   //! vertices have to be fused using the FuseVertices method.
0047   //! theDMVV contains the vertices that should be fused
0048   Standard_EXPORT static void Compute(
0049     const occ::handle<BRepAlgo_AsDes>&                                   AsDes,
0050     const TopoDS_Face&                                                   F,
0051     const NCollection_IndexedMap<TopoDS_Shape, TopTools_ShapeMapHasher>& NewEdges,
0052     const double                                                         Tol,
0053     const NCollection_DataMap<TopoDS_Shape,
0054                               NCollection_List<TopoDS_Shape>,
0055                               TopTools_ShapeMapHasher>&                  theEdgeIntEdges,
0056     NCollection_IndexedDataMap<TopoDS_Shape,
0057                                NCollection_List<TopoDS_Shape>,
0058                                TopTools_ShapeMapHasher>&                 theDMVV,
0059     const Message_ProgressRange&                                         theRange);
0060
0061   //! Computes the intersection between the offset edges of the <FI>.
0062   //! All intersection vertices will be stored in AsDes2d.
0063   //! When all faces of the shape are treated the intersection vertices
0064   //! have to be fused using the FuseVertices method.
0065   //! theDMVV contains the vertices that should be fused.
0066   Standard_EXPORT static bool ConnexIntByInt(
0067     const TopoDS_Face&                                                              FI,
0068     BRepOffset_Offset&                                                              OFI,
0069     NCollection_DataMap<TopoDS_Shape, TopoDS_Shape, TopTools_ShapeMapHasher>&       MES,
0070     const NCollection_DataMap<TopoDS_Shape, TopoDS_Shape, TopTools_ShapeMapHasher>& Build,
0071     const occ::handle<BRepAlgo_AsDes>&                                              theAsDes,
0072     const occ::handle<BRepAlgo_AsDes>&                                              AsDes2d,
0073     const double                                                                    Offset,
0074     const double                                                                    Tol,
0075     const BRepOffset_Analyse&                                                       Analyse,
0076     NCollection_IndexedMap<TopoDS_Shape, TopTools_ShapeMapHasher>&                  FacesWithVerts,
0077     BRepAlgo_Image&                                                                 theImageVV,
0078     NCollection_DataMap<TopoDS_Shape, NCollection_List<TopoDS_Shape>, TopTools_ShapeMapHasher>&
0079                                                          theEdgeIntEdges,
0080     NCollection_IndexedDataMap<TopoDS_Shape,
0081                                NCollection_List<TopoDS_Shape>,
0082                                TopTools_ShapeMapHasher>& theDMVV,
0083     const Message_ProgressRange&                         theRange);
0084
0085   //! Computes the intersection between the offset edges generated
0086   //! from vertices and stored into AsDes as descendants of the <FI>.
0087   //! All intersection vertices will be stored in AsDes2d.
0088   //! When all faces of the shape are treated the intersection vertices
0089   //! have to be fused using the FuseVertices method.
0090   //! theDMVV contains the vertices that should be fused.
0091   Standard_EXPORT static void ConnexIntByIntInVert(
0092     const TopoDS_Face&                                                              FI,
0093     BRepOffset_Offset&                                                              OFI,
0094     NCollection_DataMap<TopoDS_Shape, TopoDS_Shape, TopTools_ShapeMapHasher>&       MES,
0095     const NCollection_DataMap<TopoDS_Shape, TopoDS_Shape, TopTools_ShapeMapHasher>& Build,
0096     const occ::handle<BRepAlgo_AsDes>&                                              AsDes,
0097     const occ::handle<BRepAlgo_AsDes>&                                              AsDes2d,
0098     const double                                                                    Tol,
0099     const BRepOffset_Analyse&                                                       Analyse,
0100     NCollection_IndexedDataMap<TopoDS_Shape,
0101                                NCollection_List<TopoDS_Shape>,
0102                                TopTools_ShapeMapHasher>&                            theDMVV,
0103     const Message_ProgressRange&                                                    theRange);
0104
0105   //! Fuses the chains of vertices in the theDMVV
0106   //! and updates AsDes by replacing the old vertices
0107   //! with the new ones.
0108   Standard_EXPORT static bool FuseVertices(
0109     const NCollection_IndexedDataMap<TopoDS_Shape,
0110                                      NCollection_List<TopoDS_Shape>,
0111                                      TopTools_ShapeMapHasher>& theDMVV,
0112     const occ::handle<BRepAlgo_AsDes>&                         theAsDes,
0113     BRepAlgo_Image&                                            theImageVV);
0114
0115   //! extents the edge
0116   Standard_EXPORT static bool ExtentEdge(const TopoDS_Edge& E,
0117                                          TopoDS_Edge&       NE,
0118                                          const double       theOffset);
0119 };
0120
0121 #endif // _BRepOffset_Inter2d_HeaderFile