//=======================================================================
//function : PurgeNewEdges
//purpose :
//=======================================================================
static void PurgeNewEdges(TopTools_ListOfShape& ConstEdges,
const TopTools_MapOfOrientedShape& UsedEdges)
{
TopTools_ListIteratorOfListOfShape it(ConstEdges);
while ( it.More()) {
const TopoDS_Shape& NE = it.Value();
if (!UsedEdges.Contains(NE)) {
ConstEdges.Remove(it);
}
else {
it.Next();
}
}
}
//=======================================================================
//function : PerformLoops
//purpose :
//=======================================================================
void GEOMAlgo_BuilderFace::PerformLoops()
{
myErrorStatus=0;
//
Standard_Boolean bFlag;
Standard_Integer aNbEA;
TopTools_ListIteratorOfListOfShape aIt;
TopTools_MapIteratorOfMapOfOrientedShape aItM;
TopTools_IndexedDataMapOfShapeListOfShape aVEMap;
TopTools_MapOfOrientedShape aMAdded;
TopoDS_Iterator aItW;
BRep_Builder aBB;
GEOMAlgo_WireEdgeSet aWES;
GEOMAlgo_WESCorrector aWESCor;
//
// 1. Usual Wires
myLoops.Clear();
aWES.SetFace(myFace);
//
aIt.Initialize (myShapes);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aE=aIt.Value();
if (!myShapesToAvoid.Contains(aE)) {
aWES.AddStartElement(aE);
}
}
//
aWESCor.SetWES(aWES);
aWESCor.Perform();
//
GEOMAlgo_WireEdgeSet& aWESN=aWESCor.NewWES();
const TopTools_ListOfShape& aLW=aWESN.Shapes();
//
aIt.Initialize (aLW);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aW=aIt.Value();
myLoops.Append(aW);
}
//modified by NIZNHY-PKV Tue Aug 5 15:09:29 2008f
// Post Treatment
TopTools_MapOfOrientedShape aMEP;
//
// a. collect all edges that are in loops
aIt.Initialize (myLoops);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aW=aIt.Value();
aItW.Initialize(aW);
for (; aItW.More(); aItW.Next()) {
const TopoDS_Shape& aE=aItW.Value();
aMEP.Add(aE);
}
}
//
// b. collect all edges that are to avoid
aItM.Initialize(myShapesToAvoid);
for (; aItM.More(); aItM.Next()) {
const TopoDS_Shape& aE=aItM.Key();
aMEP.Add(aE);
}
//
// c. add all edges that are not processed to myShapesToAvoid
aIt.Initialize (myShapes);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aE=aIt.Value();
if (!aMEP.Contains(aE)) {
myShapesToAvoid.Add(aE);
}
}
//modified by NIZNHY-PKV Tue Aug 5 15:09:35 2008t
//
// 2. Internal Wires
myLoopsInternal.Clear();
//
aNbEA=myShapesToAvoid.Extent();
aItM.Initialize(myShapesToAvoid);
for (; aItM.More(); aItM.Next()) {
const TopoDS_Shape& aEE=aItM.Key();
TopExp::MapShapesAndAncestors(aEE, TopAbs_VERTEX, TopAbs_EDGE, aVEMap);
}
//
bFlag=Standard_True;
aItM.Initialize(myShapesToAvoid);
for (; aItM.More()&&bFlag; aItM.Next()) {
const TopoDS_Shape& aEE=aItM.Key();
if (!aMAdded.Add(aEE)) {
continue;
}
//
// make new wire
TopoDS_Wire aW;
aBB.MakeWire(aW);
aBB.Add(aW, aEE);
//
aItW.Initialize(aW);
for (; aItW.More()&&bFlag; aItW.Next()) {
const TopoDS_Edge& aE=TopoDS::Edge(aItW.Value());
//
TopoDS_Iterator aItE(aE);
for (; aItE.More()&&bFlag; aItE.Next()) {
const TopoDS_Vertex& aV = TopoDS::Vertex(aItE.Value());
const TopTools_ListOfShape& aLE=aVEMap.FindFromKey(aV);
aIt.Initialize(aLE);
for (; aIt.More()&&bFlag; aIt.Next()) {
const TopoDS_Shape& aEx=aIt.Value();
if (aMAdded.Add(aEx)) {
aBB.Add(aW, aEx);
if(aMAdded.Extent()==aNbEA) {
bFlag=!bFlag;
}
}
}//for (; aIt.More(); aIt.Next()) {
}//for (; aItE.More(); aItE.Next()) {
}//for (; aItW.More(); aItW.Next()) {
myLoopsInternal.Append(aW);
}//for (; aItM.More(); aItM.Next()) {
}
