//=======================================================================
// function: CopyFace
// purpose:
//=======================================================================
void GEOMAlgo_Tools3D::CopyFace (const TopoDS_Face& theF1,
TopoDS_Face& theF2)
{
Standard_Real aTol;
TopLoc_Location aLoc;
TopAbs_Orientation aOr;
TopoDS_Iterator aIt;
BRep_Builder aBB;
//
Handle(Geom_Surface) aSurface=BRep_Tool::Surface(theF1, aLoc);
aTol=BRep_Tool::Tolerance(theF1);
aOr=theF1.Orientation();
//
aBB.MakeFace (theF2, aSurface, aLoc, aTol);
theF2.Orientation(aOr);
//
aIt.Initialize(theF1);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aW=aIt.Value();
aBB.Add(theF2, aW);
}
}
//=======================================================================
//function : PerformAreas
//purpose :
//=======================================================================
void GEOMAlgo_BuilderFace::PerformAreas()
{
myErrorStatus=0;
//
Standard_Boolean bIsGrowth, bIsHole;
Standard_Real aTol;
TopTools_ListOfShape aNewFaces, aHoleWires;
TopoDS_Shape anInfinitePointShape;
TopTools_DataMapOfShapeShape aInOutMap;
TopTools_DataMapOfShapeListOfShape aMSH;
TopTools_DataMapIteratorOfDataMapOfShapeListOfShape aItMSH;
TopTools_ListIteratorOfListOfShape aIt1, aIt2;
TopTools_IndexedMapOfShape aMHE;
BRep_Builder aBB;
Handle(Geom_Surface) aS;
TopLoc_Location aLoc;
//
aTol=BRep_Tool::Tolerance(myFace);
aS=BRep_Tool::Surface(myFace, aLoc);
//
myAreas.Clear();
//
// Draft faces [aNewFaces]
aIt1.Initialize(myLoops);
for ( ; aIt1.More(); aIt1.Next()) {
const TopoDS_Shape& aWire=aIt1.Value();
//
bIsGrowth=IsGrowthWire(aWire, aMHE);
if (bIsGrowth) {
// make a growth face from a wire
TopoDS_Face aFace;
aBB.MakeFace(aFace, aS, aLoc, aTol);
aBB.Add (aFace, aWire);
//
aNewFaces.Append (aFace);
}
else{
// check if a wire is a hole
//XX
//bIsHole=IsHole(aWire, myFace, myContext);
bIsHole=GEOMAlgo_BuilderTools::IsHole(aWire, myFace);
//XX
if (bIsHole) {
aHoleWires.Append(aWire);
TopExp::MapShapes(aWire, TopAbs_EDGE, aMHE);
}
else {
// make a growth face from a wire
TopoDS_Face aFace;
aBB.MakeFace(aFace, aS, aLoc, aTol);
aBB.Add (aFace, aWire);
//
aNewFaces.Append (aFace);
}
}
}
//
// 2. Find outer growth shell that is most close to each hole shell
aIt2.Initialize(aHoleWires);
for (; aIt2.More(); aIt2.Next()) {
const TopoDS_Shape& aHole = aIt2.Value();
//
aIt1.Initialize(aNewFaces);
for ( ; aIt1.More(); aIt1.Next()) {
const TopoDS_Shape& aF=aIt1.Value();
//
if (!IsInside(aHole, aF, myContext)){
continue;
}
//
if ( aInOutMap.IsBound (aHole)){
const TopoDS_Shape& aF2=aInOutMap(aHole);
if (IsInside(aF, aF2, myContext)) {
aInOutMap.UnBind(aHole);
aInOutMap.Bind (aHole, aF);
}
}
else{
aInOutMap.Bind (aHole, aF);
}
}
//
// Add aHole to a map Face/ListOfHoles [aMSH]
if (aInOutMap.IsBound(aHole)){
const TopoDS_Shape& aF=aInOutMap(aHole);
if (aMSH.IsBound(aF)) {
TopTools_ListOfShape& aLH=aMSH.ChangeFind(aF);
aLH.Append(aHole);
}
else {
TopTools_ListOfShape aLH;
aLH.Append(aHole);
aMSH.Bind(aF, aLH);
}
}
}// for (; aIt2.More(); aIt2.Next())
//
// 3. Add aHoles to Faces
aItMSH.Initialize(aMSH);
for (; aItMSH.More(); aItMSH.Next()) {
TopoDS_Face aF=TopoDS::Face(aItMSH.Key());
//
const TopTools_ListOfShape& aLH=aItMSH.Value();
aIt2.Initialize(aLH);
for (; aIt2.More(); aIt2.Next()) {
const TopoDS_Shape& aHole = aIt2.Value();
aBB.Add (aF, aHole);
}
//
// update classifier
aTol=BRep_Tool::Tolerance(aF);
IntTools_FClass2d& aClsf=myContext->FClass2d(aF);
aClsf.Init(aF, aTol);
}
//
// These aNewFaces are draft faces that
// do not contain any internal shapes
//
myAreas.Append(aNewFaces);
}