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// File: AIS_C0RegularityFilter.cxx
// Created: Wed Feb 4 19:04:30 1998
// Author: Julia GERASIMOVA
// <jgv@orthodox.nnov.matra-dtv.fr>
#include <AIS_C0RegularityFilter.ixx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopExp.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS.hxx>
#include <GeomAbs_Shape.hxx>
#include <BRep_Tool.hxx>
#include <StdSelect_BRepOwner.hxx>
//=======================================================================
//function : AIS_C0RegularityFilter
//purpose :
//=======================================================================
AIS_C0RegularityFilter::AIS_C0RegularityFilter(const TopoDS_Shape& aShape)
{
TopTools_IndexedDataMapOfShapeListOfShape SubShapes;
TopExp::MapShapesAndAncestors(aShape,TopAbs_EDGE,TopAbs_FACE,SubShapes);
Standard_Boolean Ok;
for (Standard_Integer i = 1; i <= SubShapes.Extent(); i++) {
Ok = Standard_False;
TopTools_ListIteratorOfListOfShape it(SubShapes(i));
TopoDS_Face Face1, Face2;
if (it.More()) {
Face1 = TopoDS::Face(it.Value());
it.Next();
if (it.More()) {
Face2 = TopoDS::Face(it.Value());
it.Next();
if (!it.More()) {
GeomAbs_Shape ShapeContinuity =
BRep_Tool::Continuity(TopoDS::Edge(SubShapes.FindKey(i)),Face1,Face2);
Ok = (ShapeContinuity == GeomAbs_C0);
}
}
}
if (Ok) {
TopoDS_Shape curEdge = SubShapes.FindKey( i );
myMapOfEdges.Add(curEdge);
}
}
}
//=======================================================================
//function : ActsOn
//purpose :
//=======================================================================
Standard_Boolean AIS_C0RegularityFilter::ActsOn(const TopAbs_ShapeEnum aType) const
{
return (aType == TopAbs_EDGE);
}
//=======================================================================
//function : IsOk
//purpose :
//=======================================================================
Standard_Boolean AIS_C0RegularityFilter::IsOk(const Handle(SelectMgr_EntityOwner)& EO) const
{
if (Handle(StdSelect_BRepOwner)::DownCast(EO).IsNull())
return Standard_False;
const TopoDS_Shape& aShape = ((Handle(StdSelect_BRepOwner)&)EO)->Shape();
if(aShape.ShapeType()!= TopAbs_EDGE)
return Standard_False;
return (myMapOfEdges.Contains(aShape));
}
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