0024428: Implementation of LGPL license
[occt.git] / src / AIS / AIS_C0RegularityFilter.cxx
CommitLineData
b311480e 1// Created on: 1998-02-04
2// Created by: Julia GERASIMOVA
3// Copyright (c) 1998-1999 Matra Datavision
973c2be1 4// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 5//
973c2be1 6// This file is part of Open CASCADE Technology software library.
b311480e 7//
973c2be1 8// This library is free software; you can redistribute it and / or modify it
9// under the terms of the GNU Lesser General Public 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.
b311480e 13//
973c2be1 14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
7fd59977 16
17#include <AIS_C0RegularityFilter.ixx>
18
19#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
20#include <TopTools_ListIteratorOfListOfShape.hxx>
21#include <TopExp.hxx>
22#include <TopoDS_Face.hxx>
23#include <TopoDS.hxx>
24#include <GeomAbs_Shape.hxx>
25#include <BRep_Tool.hxx>
26#include <StdSelect_BRepOwner.hxx>
27
28
29//=======================================================================
30//function : AIS_C0RegularityFilter
31//purpose :
32//=======================================================================
33
34AIS_C0RegularityFilter::AIS_C0RegularityFilter(const TopoDS_Shape& aShape)
35{
36 TopTools_IndexedDataMapOfShapeListOfShape SubShapes;
37 TopExp::MapShapesAndAncestors(aShape,TopAbs_EDGE,TopAbs_FACE,SubShapes);
38 Standard_Boolean Ok;
39 for (Standard_Integer i = 1; i <= SubShapes.Extent(); i++) {
40 Ok = Standard_False;
41 TopTools_ListIteratorOfListOfShape it(SubShapes(i));
42 TopoDS_Face Face1, Face2;
43 if (it.More()) {
44 Face1 = TopoDS::Face(it.Value());
45 it.Next();
46 if (it.More()) {
47 Face2 = TopoDS::Face(it.Value());
48 it.Next();
49 if (!it.More()) {
50 GeomAbs_Shape ShapeContinuity =
51 BRep_Tool::Continuity(TopoDS::Edge(SubShapes.FindKey(i)),Face1,Face2);
52 Ok = (ShapeContinuity == GeomAbs_C0);
53 }
54 }
55 }
56 if (Ok) {
57 TopoDS_Shape curEdge = SubShapes.FindKey( i );
58 myMapOfEdges.Add(curEdge);
59 }
60 }
61}
62
63//=======================================================================
64//function : ActsOn
65//purpose :
66//=======================================================================
67
68Standard_Boolean AIS_C0RegularityFilter::ActsOn(const TopAbs_ShapeEnum aType) const
69{
70 return (aType == TopAbs_EDGE);
71}
72
73//=======================================================================
74//function : IsOk
75//purpose :
76//=======================================================================
77
78Standard_Boolean AIS_C0RegularityFilter::IsOk(const Handle(SelectMgr_EntityOwner)& EO) const
79{
80 if (Handle(StdSelect_BRepOwner)::DownCast(EO).IsNull())
81 return Standard_False;
82
83 const TopoDS_Shape& aShape = ((Handle(StdSelect_BRepOwner)&)EO)->Shape();
84
85 if(aShape.ShapeType()!= TopAbs_EDGE)
86 return Standard_False;
87
88 return (myMapOfEdges.Contains(aShape));
89}