1 // Created on: 1998-11-26
2 // Created by: Jean-Michel BOULCOURT
3 // Copyright (c) 1998-1999 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 _TopOpeBRepTool_FuseEdges_HeaderFile
18 #define _TopOpeBRepTool_FuseEdges_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <TopoDS_Shape.hxx>
25 #include <Standard_Boolean.hxx>
26 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
27 #include <TopTools_DataMapOfIntegerListOfShape.hxx>
28 #include <TopTools_DataMapOfIntegerShape.hxx>
29 #include <TopTools_DataMapOfShapeShape.hxx>
30 #include <Standard_Integer.hxx>
31 #include <TopTools_IndexedMapOfShape.hxx>
32 #include <TopAbs_ShapeEnum.hxx>
33 #include <TopTools_MapOfShape.hxx>
34 #include <TopTools_ListOfShape.hxx>
35 class Standard_ConstructionError;
36 class Standard_NullObject;
42 //! This class can detect vertices in a face that can
43 //! be considered useless and then perform the fuse of
44 //! the edges and remove the useless vertices. By
45 //! useles vertices, we mean :
46 //! * vertices that have exactly two connex edges
47 //! * the edges connex to the vertex must have
48 //! exactly the same 2 connex faces .
49 //! * The edges connex to the vertex must have the
50 //! same geometric support.
51 class TopOpeBRepTool_FuseEdges
58 //! Initialise members and build construction of map
60 Standard_EXPORT TopOpeBRepTool_FuseEdges(const TopoDS_Shape& theShape, const Standard_Boolean PerformNow = Standard_False);
62 //! set edges to avoid being fused
63 Standard_EXPORT void AvoidEdges (const TopTools_IndexedMapOfShape& theMapEdg);
65 //! returns all the list of edges to be fused
66 //! each list of the map represent a set of connex edges
67 //! that can be fused.
68 Standard_EXPORT void Edges (TopTools_DataMapOfIntegerListOfShape& theMapLstEdg);
70 //! returns all the fused edges. each integer entry in
71 //! the map corresponds to the integer in the
72 //! DataMapOfIntegerListOfShape we get in method
73 //! Edges. That is to say, to the list of edges in
74 //! theMapLstEdg(i) corresponds the resulting edge theMapEdge(i)
75 Standard_EXPORT void ResultEdges (TopTools_DataMapOfIntegerShape& theMapEdg);
77 //! returns the map of modified faces.
78 Standard_EXPORT void Faces (TopTools_DataMapOfShapeShape& theMapFac);
80 //! returns myShape modified with the list of internal
81 //! edges removed from it.
82 Standard_EXPORT TopoDS_Shape& Shape();
84 //! returns the number of vertices candidate to be removed
85 Standard_EXPORT Standard_Integer NbVertices();
87 //! Using map of list of connex edges, fuse each list to
88 //! one edge and then update myShape
89 Standard_EXPORT void Perform();
102 //! Build the all the lists of edges that are to be fused
103 Standard_EXPORT void BuildListEdges();
105 //! Build result fused edges according to the list
106 //! builtin BuildLisEdges
107 Standard_EXPORT void BuildListResultEdges();
109 Standard_EXPORT void BuildListConnexEdge (const TopoDS_Shape& theEdge, TopTools_MapOfShape& theMapUniq, TopTools_ListOfShape& theLstEdg);
111 Standard_EXPORT Standard_Boolean NextConnexEdge (const TopoDS_Vertex& theVertex, const TopoDS_Shape& theEdge, TopoDS_Shape& theEdgeConnex) const;
113 Standard_EXPORT Standard_Boolean SameSupport (const TopoDS_Edge& E1, const TopoDS_Edge& E2) const;
115 Standard_EXPORT Standard_Boolean UpdatePCurve (const TopoDS_Edge& theOldEdge, TopoDS_Edge& theNewEdge, const TopTools_ListOfShape& theLstEdg) const;
118 TopoDS_Shape myShape;
119 Standard_Boolean myShapeDone;
120 Standard_Boolean myEdgesDone;
121 Standard_Boolean myResultEdgesDone;
122 TopTools_IndexedDataMapOfShapeListOfShape myMapVerLstEdg;
123 TopTools_IndexedDataMapOfShapeListOfShape myMapEdgLstFac;
124 TopTools_DataMapOfIntegerListOfShape myMapLstEdg;
125 TopTools_DataMapOfIntegerShape myMapEdg;
126 TopTools_DataMapOfShapeShape myMapFaces;
127 Standard_Integer myNbConnexEdge;
128 TopTools_IndexedMapOfShape myAvoidEdg;
139 #endif // _TopOpeBRepTool_FuseEdges_HeaderFile