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_Offset;
  31
  32
  33 //! Computes the intersections betwwen edges on a face
  34 //! stores result is SD as AsDes from BRepOffset.
  35 class BRepOffset_Inter2d
  36 {
  37 public:
  38
  39   DEFINE_STANDARD_ALLOC
  40
  41
  42   //! Computes the intersections between the edges stored
  43   //! is AsDes as descendants of <F> . Intersections is computed
  44   //! between two edges if one of them is bound in NewEdges.
  45   //! When all faces of the shape are treated the intersection
  46   //! vertices have to be fused using the FuseVertices method.
  47   //! theDMVV contains the vertices that should be fused
  48   Standard_EXPORT static void Compute (const Handle(BRepAlgo_AsDes)& AsDes,
  49                                        const TopoDS_Face& F,
  50                                        const TopTools_IndexedMapOfShape& NewEdges,
  51                                        const Standard_Real Tol,
  52                                        TopTools_IndexedDataMapOfShapeListOfShape& theDMVV);
  53
  54   //! Computes the intersection between the offset edges of the <FI>.
  55   //! All intersection vertices will be stored in AsDes2d.
  56   //! When all faces of the shape are treated the intersection vertices
  57   //! have to be fused using the FuseVertices method.
  58   //! theDMVV contains the vertices that should be fused.
  59   Standard_EXPORT static void ConnexIntByInt (const TopoDS_Face& FI,
  60                                               BRepOffset_Offset& OFI,
  61                                               TopTools_DataMapOfShapeShape& MES,
  62                                               const TopTools_DataMapOfShapeShape& Build,
  63                                               const Handle(BRepAlgo_AsDes)& AsDes2d,
  64                                               const Standard_Real Offset,
  65                                               const Standard_Real Tol,
  66                                               TopTools_IndexedMapOfShape& FacesWithVerts,
  67                                               TopTools_IndexedDataMapOfShapeListOfShape& theDMVV);
  68
  69   //! Computes the intersection between the offset edges generated
  70   //! from vertices and stored into AsDes as descendants of the <FI>.
  71   //! All intersection vertices will be stored in AsDes2d.
  72   //! When all faces of the shape are treated the intersection vertices
  73   //! have to be fused using the FuseVertices method.
  74   //! theDMVV contains the vertices that should be fused.
  75   Standard_EXPORT static void ConnexIntByIntInVert (const TopoDS_Face& FI,
  76                                                     BRepOffset_Offset& OFI,
  77                                                     TopTools_DataMapOfShapeShape& MES,
  78                                                     const TopTools_DataMapOfShapeShape& Build,
  79                                                     const Handle(BRepAlgo_AsDes)& AsDes,
  80                                                     const Handle(BRepAlgo_AsDes)& AsDes2d,
  81                                                     const Standard_Real Tol,
  82                                                     TopTools_IndexedDataMapOfShapeListOfShape& theDMVV);
  83
  84   //! Fuses the chains of vertices in the theDMVV
  85   //! and updates AsDes by replacing the old vertices
  86   //! with the new ones.
  87   Standard_EXPORT static void FuseVertices(const TopTools_IndexedDataMapOfShapeListOfShape& theDMVV,
  88                                            const Handle(BRepAlgo_AsDes)& theAsDes);
  89   //! extents the edge
  90   Standard_EXPORT static void ExtentEdge(const TopoDS_Edge& E,
  91                                          TopoDS_Edge& NE,
  92                                          const Standard_Real theOffset);
  93
  94 protected:
  95
  96 private:
  97
  98 };
  99
 100 #endif // _BRepOffset_Inter2d_HeaderFile